src/SDL_compat.c
author Sam Lantinga <slouken@libsdl.org>
Sat, 28 Oct 2006 16:41:08 +0000
changeset 2058 38148947fdcf
parent 2037 6bb97f41ab4b
child 2129 047245361002
permissions -rw-r--r--
Fixed focus comptability bug
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2006 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#include "SDL_config.h"
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/* This file contains functions for backwards compatibility with SDL 1.2 */
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#include "SDL.h"
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#include "SDL_syswm.h"
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#include "video/SDL_sysvideo.h"
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#include "video/SDL_pixels_c.h"
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static SDL_WindowID SDL_VideoWindow;
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static SDL_RendererInfo SDL_VideoRendererInfo;
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static SDL_TextureID SDL_VideoTexture;
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static SDL_Surface *SDL_VideoSurface;
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static SDL_Surface *SDL_ShadowSurface;
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static SDL_Surface *SDL_PublicSurface;
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static SDL_GLContext *SDL_VideoContext;
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static char *wm_title;
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char *
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SDL_AudioDriverName(char *namebuf, int maxlen)
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{
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    const char *name = SDL_GetCurrentAudioDriver();
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    if (name) {
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        SDL_strlcpy(namebuf, name, maxlen);
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        return namebuf;
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    }
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    return NULL;
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}
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char *
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SDL_VideoDriverName(char *namebuf, int maxlen)
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{
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    const char *name = SDL_GetCurrentVideoDriver();
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    if (name) {
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        SDL_strlcpy(namebuf, name, maxlen);
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        return namebuf;
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    }
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    return NULL;
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}
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const SDL_VideoInfo *
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SDL_GetVideoInfo(void)
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{
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    static SDL_VideoInfo info;
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    SDL_DisplayMode mode;
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    /* Memory leak, compatibility code, who cares? */
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    if (!info.vfmt && SDL_GetDesktopDisplayMode(&mode) == 0) {
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        int bpp;
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        Uint32 Rmask, Gmask, Bmask, Amask;
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        SDL_PixelFormatEnumToMasks(mode.format, &bpp, &Rmask, &Gmask, &Bmask,
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                                   &Amask);
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        info.vfmt = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask);
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    }
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    return &info;
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}
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int
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SDL_VideoModeOK(int width, int height, int bpp, Uint32 flags)
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{
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    int i, actual_bpp = 0;
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    if (!SDL_GetVideoDevice()) {
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        return 0;
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    }
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    if (!(flags & SDL_FULLSCREEN)) {
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        SDL_DisplayMode mode;
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        SDL_GetDesktopDisplayMode(&mode);
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        return SDL_BITSPERPIXEL(mode.format);
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    }
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    for (i = 0; i < SDL_GetNumDisplayModes(); ++i) {
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        SDL_DisplayMode mode;
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        SDL_GetDisplayMode(i, &mode);
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        if (!mode.w || !mode.h || (width == mode.w && height == mode.h)) {
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            if (!mode.format) {
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                return bpp;
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            }
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            if (SDL_BITSPERPIXEL(mode.format) >= (Uint32) bpp) {
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                actual_bpp = SDL_BITSPERPIXEL(mode.format);
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            }
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        }
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    }
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    return actual_bpp;
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}
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SDL_Rect **
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SDL_ListModes(SDL_PixelFormat * format, Uint32 flags)
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{
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    int i, nmodes;
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    SDL_Rect **modes;
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    if (!SDL_GetVideoDevice()) {
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        return NULL;
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    }
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    if (!(flags & SDL_FULLSCREEN)) {
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        return (SDL_Rect **) (-1);
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    }
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    /* Memory leak, but this is a compatibility function, who cares? */
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    nmodes = 0;
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    modes = NULL;
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    for (i = 0; i < SDL_GetNumDisplayModes(); ++i) {
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        SDL_DisplayMode mode;
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        SDL_GetDisplayMode(i, &mode);
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        if (!mode.w || !mode.h) {
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            return (SDL_Rect **) (-1);
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        }
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        if (SDL_BITSPERPIXEL(mode.format) != format->BitsPerPixel) {
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            continue;
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        }
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        if (nmodes > 0 && modes[nmodes - 1]->w == mode.w
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            && modes[nmodes - 1]->h == mode.h) {
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            continue;
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        }
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        modes = SDL_realloc(modes, (nmodes + 2) * sizeof(*modes));
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        if (!modes) {
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            return NULL;
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        }
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        modes[nmodes] = (SDL_Rect *) SDL_malloc(sizeof(SDL_Rect));
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        if (!modes[nmodes]) {
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            return NULL;
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        }
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        modes[nmodes]->x = 0;
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        modes[nmodes]->y = 0;
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        modes[nmodes]->w = mode.w;
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        modes[nmodes]->h = mode.h;
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        ++nmodes;
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    }
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    if (modes) {
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        modes[nmodes] = NULL;
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    }
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    return modes;
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}
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static int
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SDL_CompatEventFilter(void *userdata, SDL_Event * event)
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{
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    SDL_Event fake;
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    switch (event->type) {
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    case SDL_WINDOWEVENT:
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        switch (event->window.event) {
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        case SDL_WINDOWEVENT_EXPOSED:
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            if (!SDL_HasEvent(SDL_VIDEOEXPOSEMASK)) {
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                fake.type = SDL_VIDEOEXPOSE;
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                SDL_PushEvent(&fake);
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            }
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            break;
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        case SDL_WINDOWEVENT_RESIZED:
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            fake.type = SDL_VIDEORESIZE;
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            fake.resize.w = event->window.data1;
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            fake.resize.h = event->window.data2;
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            SDL_PushEvent(&fake);
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            break;
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        case SDL_WINDOWEVENT_MINIMIZED:
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            fake.type = SDL_ACTIVEEVENT;
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            fake.active.gain = 0;
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            fake.active.state = SDL_APPACTIVE;
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            SDL_PushEvent(&fake);
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            break;
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        case SDL_WINDOWEVENT_RESTORED:
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            fake.type = SDL_ACTIVEEVENT;
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            fake.active.gain = 1;
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            fake.active.state = SDL_APPACTIVE;
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            SDL_PushEvent(&fake);
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            break;
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        case SDL_WINDOWEVENT_ENTER:
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            fake.type = SDL_ACTIVEEVENT;
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            fake.active.gain = 1;
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            fake.active.state = SDL_APPMOUSEFOCUS;
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            SDL_PushEvent(&fake);
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            break;
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        case SDL_WINDOWEVENT_LEAVE:
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            fake.type = SDL_ACTIVEEVENT;
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            fake.active.gain = 0;
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            fake.active.state = SDL_APPMOUSEFOCUS;
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            SDL_PushEvent(&fake);
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            break;
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        case SDL_WINDOWEVENT_FOCUS_GAINED:
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            fake.type = SDL_ACTIVEEVENT;
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            fake.active.gain = 1;
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            fake.active.state = SDL_APPINPUTFOCUS;
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            SDL_PushEvent(&fake);
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            break;
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        case SDL_WINDOWEVENT_FOCUS_LOST:
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            fake.type = SDL_ACTIVEEVENT;
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            fake.active.gain = 0;
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            fake.active.state = SDL_APPINPUTFOCUS;
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            SDL_PushEvent(&fake);
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            break;
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        case SDL_WINDOWEVENT_CLOSE:
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            fake.type = SDL_QUIT;
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            SDL_PushEvent(&fake);
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            break;
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        }
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    case SDL_KEYDOWN:
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    case SDL_KEYUP:
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        {
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            Uint32 unicode = 0;
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            if (event->key.type == SDL_KEYDOWN && event->key.keysym.sym < 256) {
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                unicode = event->key.keysym.sym;
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                if (unicode >= 'a' && unicode <= 'z') {
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                    int shifted = !!(event->key.keysym.mod & KMOD_SHIFT);
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                    int capslock = !!(event->key.keysym.mod & KMOD_CAPS);
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                    if ((shifted ^ capslock) != 0) {
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                        unicode = SDL_toupper(unicode);
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                    }
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                }
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            }
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            if (unicode) {
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                event->key.keysym.unicode = unicode;
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            }
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            break;
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        }
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    case SDL_MOUSEWHEEL:
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        {
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            Uint8 button;
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            int selected;
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            int x, y;
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            selected = SDL_SelectMouse(event->wheel.which);
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            SDL_GetMouseState(&x, &y);
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            SDL_SelectMouse(selected);
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            if (event->wheel.motion > 0) {
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                button = SDL_BUTTON_WHEELUP;
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            } else {
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                button = SDL_BUTTON_WHEELDOWN;
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            }
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            fake.button.which = event->wheel.windowID;
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            fake.button.button = button;
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            fake.button.x = x;
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            fake.button.y = y;
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            fake.button.windowID = event->wheel.windowID;
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            fake.type = SDL_MOUSEBUTTONDOWN;
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            fake.button.state = SDL_PRESSED;
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            SDL_PushEvent(&fake);
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            fake.type = SDL_MOUSEBUTTONUP;
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            fake.button.state = SDL_RELEASED;
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            SDL_PushEvent(&fake);
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            break;
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        }
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    }
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    return 1;
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}
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static int
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SDL_VideoPaletteChanged(void *userdata, SDL_Palette * palette)
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{
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    if (userdata == SDL_ShadowSurface) {
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        /* If the shadow palette changed, make the changes visible */
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        if (!SDL_VideoSurface->format->palette) {
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            SDL_UpdateRect(SDL_ShadowSurface, 0, 0, 0, 0);
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        }
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    }
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    if (userdata == SDL_VideoSurface) {
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        if (SDL_SetDisplayPalette(palette->colors, 0, palette->ncolors) < 0) {
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            return -1;
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        }
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        if (SDL_SetTexturePalette
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            (SDL_VideoTexture, palette->colors, 0, palette->ncolors) < 0) {
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            return -1;
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        }
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    }
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    return 0;
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}
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static void
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GetEnvironmentWindowPosition(int w, int h, int *x, int *y)
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{
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   303
    const char *window = SDL_getenv("SDL_VIDEO_WINDOW_POS");
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   304
    const char *center = SDL_getenv("SDL_VIDEO_CENTERED");
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   305
    if (window) {
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   306
        if (SDL_sscanf(window, "%d,%d", x, y) == 2) {
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   307
            return;
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   308
        }
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   309
        if (SDL_strcmp(window, "center") == 0) {
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   310
            center = window;
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   311
        }
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   312
    }
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   313
    if (center) {
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        SDL_DisplayMode mode;
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   315
        SDL_GetDesktopDisplayMode(&mode);
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   316
        *x = (mode.w - w) / 2;
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   317
        *y = (mode.h - h) / 2;
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   318
    }
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   319
}
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   320
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   321
SDL_Surface *
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   322
SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags)
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   323
{
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   324
    SDL_DisplayMode desktop_mode;
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   325
    SDL_DisplayMode mode;
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   326
    int window_x = SDL_WINDOWPOS_UNDEFINED;
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   327
    int window_y = SDL_WINDOWPOS_UNDEFINED;
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   328
    Uint32 window_flags;
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   329
    Uint32 desktop_format;
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   330
    Uint32 desired_format;
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   331
    Uint32 surface_flags;
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   332
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   333
    if (!SDL_GetVideoDevice()) {
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   334
        if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE) < 0) {
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   335
            return NULL;
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   336
        }
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   337
    }
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   338
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   339
    /* Destroy existing window */
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   340
    SDL_PublicSurface = NULL;
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   341
    if (SDL_ShadowSurface) {
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   342
        SDL_FreeSurface(SDL_ShadowSurface);
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   343
        SDL_ShadowSurface = NULL;
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   344
    }
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   345
    if (SDL_VideoSurface) {
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   346
        SDL_DelPaletteWatch(SDL_VideoSurface->format->palette,
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   347
                            SDL_VideoPaletteChanged, NULL);
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   348
        SDL_FreeSurface(SDL_VideoSurface);
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   349
        SDL_VideoSurface = NULL;
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   350
    }
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   351
    if (SDL_VideoContext) {
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   352
        SDL_GL_MakeCurrent(0, NULL);
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   353
        SDL_GL_DeleteContext(SDL_VideoContext);
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   354
        SDL_VideoContext = NULL;
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   355
    }
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   356
    if (SDL_VideoWindow) {
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   357
        SDL_GetWindowPosition(SDL_VideoWindow, &window_x, &window_y);
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   358
    }
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   359
    SDL_DestroyWindow(SDL_VideoWindow);
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   360
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   361
    /* Set up the event filter */
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   362
    if (!SDL_GetEventFilter(NULL, NULL)) {
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   363
        SDL_SetEventFilter(SDL_CompatEventFilter, NULL);
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   364
    }
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   365
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   366
    /* Create a new window */
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   367
    window_flags = SDL_WINDOW_SHOWN;
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   368
    if (flags & SDL_FULLSCREEN) {
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   369
        window_flags |= SDL_WINDOW_FULLSCREEN;
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   370
    }
slouken@1895
   371
    if (flags & SDL_OPENGL) {
slouken@1895
   372
        window_flags |= SDL_WINDOW_OPENGL;
slouken@1895
   373
    }
slouken@1895
   374
    if (flags & SDL_RESIZABLE) {
slouken@1895
   375
        window_flags |= SDL_WINDOW_RESIZABLE;
slouken@1895
   376
    }
slouken@1895
   377
    if (flags & SDL_NOFRAME) {
slouken@1895
   378
        window_flags |= SDL_WINDOW_BORDERLESS;
slouken@1895
   379
    }
slouken@1895
   380
    GetEnvironmentWindowPosition(width, height, &window_x, &window_y);
slouken@1895
   381
    SDL_SetFullscreenDisplayMode(NULL);
slouken@1895
   382
    SDL_VideoWindow =
slouken@1895
   383
        SDL_CreateWindow(wm_title, window_x, window_y, width, height,
slouken@1895
   384
                         window_flags);
slouken@1895
   385
    if (!SDL_VideoWindow) {
slouken@1895
   386
        return NULL;
slouken@1895
   387
    }
slouken@1895
   388
slouken@1895
   389
    window_flags = SDL_GetWindowFlags(SDL_VideoWindow);
slouken@1895
   390
    surface_flags = 0;
slouken@1895
   391
    if (window_flags & SDL_WINDOW_FULLSCREEN) {
slouken@1895
   392
        surface_flags |= SDL_FULLSCREEN;
slouken@1895
   393
    }
slouken@1895
   394
    if (window_flags & SDL_WINDOW_OPENGL) {
slouken@1895
   395
        surface_flags |= SDL_OPENGL;
slouken@1895
   396
    }
slouken@1895
   397
    if (window_flags & SDL_WINDOW_RESIZABLE) {
slouken@1895
   398
        surface_flags |= SDL_RESIZABLE;
slouken@1895
   399
    }
slouken@1895
   400
    if (window_flags & SDL_WINDOW_BORDERLESS) {
slouken@1895
   401
        surface_flags |= SDL_NOFRAME;
slouken@1895
   402
    }
slouken@1895
   403
slouken@1895
   404
    /* Set up the desired display mode */
slouken@1967
   405
    SDL_GetDesktopDisplayMode(&desktop_mode);
slouken@1967
   406
    desktop_format = desktop_mode.format;
slouken@1895
   407
    if (desktop_format && ((flags & SDL_ANYFORMAT)
slouken@1895
   408
                           || (bpp == SDL_BITSPERPIXEL(desktop_format)))) {
slouken@1895
   409
        desired_format = desktop_format;
slouken@1895
   410
    } else {
slouken@1895
   411
        switch (bpp) {
slouken@1895
   412
        case 0:
slouken@1895
   413
            if (desktop_format) {
slouken@1895
   414
                desired_format = desktop_format;
slouken@1895
   415
            } else {
slouken@1965
   416
                desired_format = SDL_PIXELFORMAT_RGB888;
slouken@1895
   417
            }
slouken@1895
   418
            break;
slouken@1895
   419
        case 8:
slouken@1965
   420
            desired_format = SDL_PIXELFORMAT_INDEX8;
slouken@1895
   421
            break;
slouken@1895
   422
        case 15:
slouken@1965
   423
            desired_format = SDL_PIXELFORMAT_RGB555;
slouken@1895
   424
            break;
slouken@1895
   425
        case 16:
slouken@1965
   426
            desired_format = SDL_PIXELFORMAT_RGB565;
slouken@1895
   427
            break;
slouken@1895
   428
        case 24:
slouken@1965
   429
            desired_format = SDL_PIXELFORMAT_RGB24;
slouken@1895
   430
            break;
slouken@1895
   431
        case 32:
slouken@1965
   432
            desired_format = SDL_PIXELFORMAT_RGB888;
slouken@1895
   433
            break;
slouken@1895
   434
        default:
slouken@1895
   435
            SDL_SetError("Unsupported bpp in SDL_SetVideoMode()");
slouken@1895
   436
            return NULL;
slouken@1895
   437
        }
slouken@1895
   438
    }
slouken@1895
   439
    mode.format = desired_format;
slouken@1895
   440
    mode.w = width;
slouken@1895
   441
    mode.h = height;
slouken@1895
   442
    mode.refresh_rate = 0;
slouken@1895
   443
slouken@1895
   444
    /* Set the desired display mode */
slouken@1895
   445
    if (flags & SDL_FULLSCREEN) {
slouken@1895
   446
        if (SDL_SetFullscreenDisplayMode(&mode) < 0) {
slouken@1895
   447
            return NULL;
slouken@1895
   448
        }
slouken@1895
   449
    }
slouken@1895
   450
slouken@1895
   451
    /* If we're in OpenGL mode, just create a stub surface and we're done! */
slouken@1895
   452
    if (flags & SDL_OPENGL) {
slouken@1912
   453
        SDL_VideoContext = SDL_GL_CreateContext(SDL_VideoWindow);
slouken@1912
   454
        if (!SDL_VideoContext) {
slouken@1912
   455
            return NULL;
slouken@1912
   456
        }
slouken@1912
   457
        if (SDL_GL_MakeCurrent(SDL_VideoWindow, SDL_VideoContext) < 0) {
slouken@1912
   458
            return NULL;
slouken@1912
   459
        }
slouken@1895
   460
        SDL_VideoSurface =
slouken@1895
   461
            SDL_CreateRGBSurfaceFrom(NULL, width, height, bpp, 0, 0, 0, 0, 0);
slouken@1895
   462
        if (!SDL_VideoSurface) {
slouken@1895
   463
            return NULL;
slouken@1895
   464
        }
slouken@1895
   465
        SDL_VideoSurface->flags |= surface_flags;
slouken@1895
   466
        SDL_PublicSurface = SDL_VideoSurface;
slouken@1895
   467
        return SDL_PublicSurface;
slouken@1895
   468
    }
slouken@1895
   469
slouken@1895
   470
    /* Create a renderer for the window */
slouken@1907
   471
    if (SDL_CreateRenderer
slouken@1907
   472
        (SDL_VideoWindow, -1,
slouken@1965
   473
         SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTDISCARD) < 0) {
slouken@1895
   474
        return NULL;
slouken@1895
   475
    }
slouken@1969
   476
    SDL_GetRenderDriverInfo(-1, &SDL_VideoRendererInfo);
slouken@1895
   477
slouken@1895
   478
    /* Create a texture for the screen surface */
slouken@1895
   479
    SDL_VideoTexture =
slouken@1965
   480
        SDL_CreateTexture(desired_format, SDL_TEXTUREACCESS_LOCAL, width,
slouken@1895
   481
                          height);
slouken@1895
   482
    if (!SDL_VideoTexture) {
slouken@1895
   483
        SDL_VideoTexture =
slouken@1965
   484
            SDL_CreateTexture(SDL_PIXELFORMAT_RGB888, SDL_TEXTUREACCESS_LOCAL,
slouken@1924
   485
                              width, height);
slouken@1895
   486
    }
slouken@1895
   487
    if (!SDL_VideoTexture) {
slouken@1895
   488
        return NULL;
slouken@1895
   489
    }
slouken@1895
   490
slouken@1895
   491
    /* Create the screen surface */
slouken@1895
   492
    SDL_VideoSurface = SDL_CreateRGBSurfaceFromTexture(SDL_VideoTexture);
slouken@1895
   493
    if (!SDL_VideoSurface) {
slouken@1895
   494
        return NULL;
slouken@1895
   495
    }
slouken@1895
   496
    SDL_VideoSurface->flags |= surface_flags;
slouken@1895
   497
slouken@1895
   498
    /* Set a default screen palette */
slouken@1895
   499
    if (SDL_VideoSurface->format->palette) {
slouken@1895
   500
        SDL_VideoSurface->flags |= SDL_HWPALETTE;
slouken@1895
   501
        SDL_DitherColors(SDL_VideoSurface->format->palette->colors,
slouken@1895
   502
                         SDL_VideoSurface->format->BitsPerPixel);
slouken@1895
   503
        SDL_AddPaletteWatch(SDL_VideoSurface->format->palette,
slouken@1895
   504
                            SDL_VideoPaletteChanged, NULL);
slouken@1895
   505
        SDL_SetPaletteColors(SDL_VideoSurface->format->palette,
slouken@1895
   506
                             SDL_VideoSurface->format->palette->colors, 0,
slouken@1895
   507
                             SDL_VideoSurface->format->palette->ncolors);
slouken@1895
   508
    }
slouken@1895
   509
slouken@1895
   510
    /* Create a shadow surface if necessary */
slouken@1895
   511
    if (((bpp != SDL_VideoSurface->format->BitsPerPixel)
slouken@1895
   512
         && !(flags & SDL_ANYFORMAT))
slouken@1895
   513
        || ((SDL_VideoSurface->flags & SDL_HWSURFACE)
slouken@1895
   514
            && !(flags & SDL_HWSURFACE))) {
slouken@1895
   515
        if ((bpp == SDL_VideoSurface->format->BitsPerPixel)
slouken@1895
   516
            || (flags & SDL_ANYFORMAT)) {
slouken@1895
   517
            SDL_ShadowSurface =
slouken@1895
   518
                SDL_CreateRGBSurface(0, width, height,
slouken@1895
   519
                                     SDL_VideoSurface->format->BitsPerPixel,
slouken@1895
   520
                                     SDL_VideoSurface->format->Rmask,
slouken@1895
   521
                                     SDL_VideoSurface->format->Gmask,
slouken@1895
   522
                                     SDL_VideoSurface->format->Bmask,
slouken@1895
   523
                                     SDL_VideoSurface->format->Amask);
slouken@1895
   524
        } else {
slouken@1895
   525
            SDL_ShadowSurface =
slouken@1895
   526
                SDL_CreateRGBSurface(0, width, height, bpp, 0, 0, 0, 0);
slouken@1895
   527
        }
slouken@1895
   528
        if (!SDL_ShadowSurface) {
slouken@1895
   529
            return NULL;
slouken@1895
   530
        }
slouken@1895
   531
        SDL_ShadowSurface->flags |= surface_flags;
slouken@1895
   532
slouken@1895
   533
        /* 8-bit SDL_ShadowSurface surfaces report that they have exclusive palette */
slouken@1895
   534
        if (SDL_ShadowSurface->format->palette) {
slouken@1895
   535
            SDL_ShadowSurface->flags |= SDL_HWPALETTE;
slouken@1895
   536
            if (SDL_VideoSurface->format->palette) {
slouken@1895
   537
                SDL_SetSurfacePalette(SDL_ShadowSurface,
slouken@1895
   538
                                      SDL_VideoSurface->format->palette);
slouken@1895
   539
            } else {
slouken@1895
   540
                SDL_DitherColors(SDL_ShadowSurface->format->palette->colors,
slouken@1895
   541
                                 SDL_ShadowSurface->format->BitsPerPixel);
slouken@1895
   542
            }
slouken@1895
   543
        }
slouken@1895
   544
    }
slouken@1895
   545
    SDL_PublicSurface =
slouken@1895
   546
        (SDL_ShadowSurface ? SDL_ShadowSurface : SDL_VideoSurface);
slouken@1895
   547
slouken@1895
   548
    /* Clear the surface for display */
slouken@1895
   549
    SDL_FillRect(SDL_PublicSurface, NULL, 0);
slouken@1897
   550
    SDL_UpdateRect(SDL_PublicSurface, 0, 0, 0, 0);
slouken@1895
   551
slouken@1895
   552
    /* We're finally done! */
slouken@1895
   553
    return SDL_PublicSurface;
slouken@1895
   554
}
slouken@1895
   555
slouken@1895
   556
SDL_Surface *
slouken@1895
   557
SDL_GetVideoSurface(void)
slouken@1895
   558
{
slouken@1895
   559
    return SDL_PublicSurface;
slouken@1895
   560
}
slouken@1895
   561
slouken@1895
   562
SDL_Surface *
slouken@1895
   563
SDL_DisplayFormat(SDL_Surface * surface)
slouken@1895
   564
{
slouken@1895
   565
    Uint32 flags;
slouken@1895
   566
slouken@1895
   567
    if (!SDL_PublicSurface) {
slouken@1895
   568
        SDL_SetError("No video mode has been set");
slouken@1895
   569
        return NULL;
slouken@1895
   570
    }
slouken@1895
   571
slouken@1895
   572
    /* Set the flags appropriate for copying to display surface */
slouken@1895
   573
    flags = SDL_SWSURFACE;
slouken@1895
   574
#ifdef AUTORLE_DISPLAYFORMAT
slouken@1895
   575
    flags |= (surface->flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA));
slouken@1895
   576
    flags |= SDL_RLEACCELOK;
slouken@1895
   577
#else
slouken@1895
   578
    flags |=
slouken@1895
   579
        surface->flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA | SDL_RLEACCELOK);
slouken@1895
   580
#endif
slouken@1895
   581
    return SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags);
slouken@1895
   582
}
slouken@1895
   583
slouken@1895
   584
SDL_Surface *
slouken@1895
   585
SDL_DisplayFormatAlpha(SDL_Surface * surface)
slouken@1895
   586
{
slouken@1895
   587
    SDL_PixelFormat *vf;
slouken@1895
   588
    SDL_PixelFormat *format;
slouken@1895
   589
    SDL_Surface *converted;
slouken@1895
   590
    Uint32 flags;
slouken@1895
   591
    /* default to ARGB8888 */
slouken@1895
   592
    Uint32 amask = 0xff000000;
slouken@1895
   593
    Uint32 rmask = 0x00ff0000;
slouken@1895
   594
    Uint32 gmask = 0x0000ff00;
slouken@1895
   595
    Uint32 bmask = 0x000000ff;
slouken@1895
   596
slouken@1895
   597
    if (!SDL_PublicSurface) {
slouken@1895
   598
        SDL_SetError("No video mode has been set");
slouken@1895
   599
        return NULL;
slouken@1895
   600
    }
slouken@1895
   601
    vf = SDL_PublicSurface->format;
slouken@1895
   602
slouken@1895
   603
    switch (vf->BytesPerPixel) {
slouken@1895
   604
    case 2:
slouken@1895
   605
        /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}.
slouken@1895
   606
           For anything else (like ARGB4444) it doesn't matter
slouken@1895
   607
           since we have no special code for it anyway */
slouken@1895
   608
        if ((vf->Rmask == 0x1f) &&
slouken@1895
   609
            (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) {
slouken@1895
   610
            rmask = 0xff;
slouken@1895
   611
            bmask = 0xff0000;
slouken@1895
   612
        }
slouken@1895
   613
        break;
slouken@1895
   614
slouken@1895
   615
    case 3:
slouken@1895
   616
    case 4:
slouken@1895
   617
        /* Keep the video format, as long as the high 8 bits are
slouken@1895
   618
           unused or alpha */
slouken@1895
   619
        if ((vf->Rmask == 0xff) && (vf->Bmask == 0xff0000)) {
slouken@1895
   620
            rmask = 0xff;
slouken@1895
   621
            bmask = 0xff0000;
slouken@1895
   622
        }
slouken@1895
   623
        break;
slouken@1895
   624
slouken@1895
   625
    default:
slouken@1895
   626
        /* We have no other optimised formats right now. When/if a new
slouken@1895
   627
           optimised alpha format is written, add the converter here */
slouken@1895
   628
        break;
slouken@1895
   629
    }
slouken@1895
   630
    format = SDL_AllocFormat(32, rmask, gmask, bmask, amask);
slouken@1895
   631
    flags = SDL_PublicSurface->flags & SDL_HWSURFACE;
slouken@1895
   632
    flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK);
slouken@1895
   633
    converted = SDL_ConvertSurface(surface, format, flags);
slouken@1895
   634
    SDL_FreeFormat(format);
slouken@1895
   635
    return converted;
slouken@1895
   636
}
slouken@1895
   637
slouken@1895
   638
int
slouken@1895
   639
SDL_Flip(SDL_Surface * screen)
slouken@1895
   640
{
slouken@1895
   641
    SDL_UpdateRect(screen, 0, 0, 0, 0);
slouken@1895
   642
    return 0;
slouken@1895
   643
}
slouken@1895
   644
slouken@1895
   645
void
slouken@1895
   646
SDL_UpdateRect(SDL_Surface * screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h)
slouken@1895
   647
{
slouken@1895
   648
    if (screen) {
slouken@1895
   649
        SDL_Rect rect;
slouken@1895
   650
slouken@1895
   651
        /* Fill the rectangle */
slouken@1897
   652
        rect.x = (int) x;
slouken@1897
   653
        rect.y = (int) y;
slouken@1897
   654
        rect.w = (int) (w ? w : screen->w);
slouken@1897
   655
        rect.h = (int) (h ? h : screen->h);
slouken@1895
   656
        SDL_UpdateRects(screen, 1, &rect);
slouken@1895
   657
    }
slouken@1895
   658
}
slouken@1895
   659
void
slouken@1895
   660
SDL_UpdateRects(SDL_Surface * screen, int numrects, SDL_Rect * rects)
slouken@1895
   661
{
slouken@1895
   662
    int i;
slouken@1895
   663
slouken@1895
   664
    if (screen == SDL_ShadowSurface) {
slouken@1895
   665
        for (i = 0; i < numrects; ++i) {
slouken@1895
   666
            SDL_LowerBlit(SDL_ShadowSurface, &rects[i], SDL_VideoSurface,
slouken@1895
   667
                          &rects[i]);
slouken@1895
   668
        }
slouken@1895
   669
slouken@1895
   670
        /* Fall through to video surface update */
slouken@1895
   671
        screen = SDL_VideoSurface;
slouken@1895
   672
    }
slouken@1895
   673
    if (screen == SDL_VideoSurface) {
slouken@1965
   674
        if (SDL_VideoRendererInfo.flags & SDL_RENDERER_PRESENTCOPY) {
slouken@1907
   675
            for (i = 0; i < numrects; ++i) {
slouken@1985
   676
                SDL_RenderCopy(SDL_VideoTexture, &rects[i], &rects[i]);
slouken@1907
   677
            }
slouken@1907
   678
        } else {
slouken@1907
   679
            SDL_Rect rect;
slouken@1907
   680
            rect.x = 0;
slouken@1907
   681
            rect.y = 0;
slouken@1907
   682
            rect.w = screen->w;
slouken@1907
   683
            rect.h = screen->h;
slouken@1985
   684
            SDL_RenderCopy(SDL_VideoTexture, &rect, &rect);
slouken@1895
   685
        }
slouken@1895
   686
        SDL_RenderPresent();
slouken@1895
   687
    }
slouken@1895
   688
}
slouken@1895
   689
slouken@1895
   690
void
slouken@1895
   691
SDL_WM_SetCaption(const char *title, const char *icon)
slouken@1895
   692
{
slouken@1895
   693
    if (wm_title) {
slouken@1895
   694
        SDL_free(wm_title);
slouken@2037
   695
    }
slouken@2037
   696
    if (title) {
slouken@2037
   697
        wm_title = SDL_strdup(title);
slouken@1895
   698
    } else {
slouken@2037
   699
        wm_title = NULL;
slouken@1895
   700
    }
slouken@1895
   701
    SDL_SetWindowTitle(SDL_VideoWindow, wm_title);
slouken@1895
   702
}
slouken@1895
   703
slouken@1895
   704
void
slouken@2037
   705
SDL_WM_GetCaption(const char **title, const char **icon)
slouken@1895
   706
{
slouken@1895
   707
    if (title) {
slouken@1895
   708
        *title = wm_title;
slouken@1895
   709
    }
slouken@1895
   710
    if (icon) {
slouken@1895
   711
        *icon = "";
slouken@1895
   712
    }
slouken@1895
   713
}
slouken@1895
   714
slouken@1895
   715
void
slouken@1895
   716
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
slouken@1895
   717
{
slouken@1895
   718
    /* FIXME */
slouken@1895
   719
}
slouken@1895
   720
slouken@1895
   721
int
slouken@1895
   722
SDL_WM_IconifyWindow(void)
slouken@1895
   723
{
slouken@1895
   724
    SDL_MinimizeWindow(SDL_VideoWindow);
slouken@1895
   725
    return 0;
slouken@1895
   726
}
slouken@1895
   727
slouken@1895
   728
int
slouken@1895
   729
SDL_WM_ToggleFullScreen(SDL_Surface * surface)
slouken@1895
   730
{
slouken@1895
   731
    if (SDL_GetWindowFlags(SDL_VideoWindow) & SDL_WINDOW_FULLSCREEN) {
slouken@1895
   732
        if (SDL_SetWindowFullscreen(SDL_VideoWindow, 0) < 0) {
slouken@1895
   733
            return 0;
slouken@1895
   734
        }
slouken@1895
   735
        SDL_PublicSurface->flags &= ~SDL_FULLSCREEN;
slouken@1895
   736
    } else {
slouken@1895
   737
        if (SDL_SetWindowFullscreen(SDL_VideoWindow, 1) < 0) {
slouken@1895
   738
            return 0;
slouken@1895
   739
        }
slouken@1895
   740
        SDL_PublicSurface->flags |= SDL_FULLSCREEN;
slouken@1895
   741
    }
slouken@1895
   742
    return 1;
slouken@1895
   743
}
slouken@1895
   744
slouken@1895
   745
SDL_GrabMode
slouken@1895
   746
SDL_WM_GrabInput(SDL_GrabMode mode)
slouken@1895
   747
{
slouken@1895
   748
    if (mode != SDL_GRAB_QUERY) {
slouken@1895
   749
        SDL_SetWindowGrab(SDL_VideoWindow, mode);
slouken@1895
   750
    }
slouken@1895
   751
    return (SDL_GrabMode) SDL_GetWindowGrab(SDL_VideoWindow);
slouken@1895
   752
}
slouken@1895
   753
slouken@1895
   754
void
slouken@1895
   755
SDL_WarpMouse(Uint16 x, Uint16 y)
slouken@1895
   756
{
slouken@1895
   757
    SDL_WarpMouseInWindow(SDL_VideoWindow, x, y);
slouken@1895
   758
}
slouken@1895
   759
slouken@1895
   760
Uint8
slouken@1895
   761
SDL_GetAppState(void)
slouken@1895
   762
{
slouken@1895
   763
    Uint8 state = 0;
slouken@1895
   764
    Uint32 flags = 0;
slouken@1895
   765
slouken@1895
   766
    flags = SDL_GetWindowFlags(SDL_VideoWindow);
slouken@1895
   767
    if ((flags & SDL_WINDOW_SHOWN) && !(flags & SDL_WINDOW_MINIMIZED)) {
slouken@1895
   768
        state |= SDL_APPACTIVE;
slouken@1895
   769
    }
slouken@1895
   770
    if (flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@1895
   771
        state |= SDL_APPINPUTFOCUS;
slouken@1895
   772
    }
slouken@1895
   773
    if (flags & SDL_WINDOW_MOUSE_FOCUS) {
slouken@1895
   774
        state |= SDL_APPMOUSEFOCUS;
slouken@1895
   775
    }
slouken@1895
   776
    return state;
slouken@1895
   777
}
slouken@1895
   778
slouken@1895
   779
const SDL_version *
slouken@1895
   780
SDL_Linked_Version(void)
slouken@1895
   781
{
slouken@1895
   782
    static SDL_version version;
slouken@1895
   783
    SDL_VERSION(&version);
slouken@1895
   784
    return &version;
slouken@1895
   785
}
slouken@1895
   786
slouken@1895
   787
int
slouken@1895
   788
SDL_SetPalette(SDL_Surface * surface, int flags, const SDL_Color * colors,
slouken@1895
   789
               int firstcolor, int ncolors)
slouken@1895
   790
{
slouken@1895
   791
    return SDL_SetColors(surface, colors, firstcolor, ncolors);
slouken@1895
   792
}
slouken@1895
   793
slouken@1895
   794
int
slouken@1895
   795
SDL_SetColors(SDL_Surface * surface, const SDL_Color * colors, int firstcolor,
slouken@1895
   796
              int ncolors)
slouken@1895
   797
{
slouken@1895
   798
    if (SDL_SetPaletteColors
slouken@1895
   799
        (surface->format->palette, colors, firstcolor, ncolors) == 0) {
slouken@1895
   800
        return 1;
slouken@1895
   801
    } else {
slouken@1895
   802
        return 0;
slouken@1895
   803
    }
slouken@1895
   804
}
slouken@1895
   805
slouken@1895
   806
int
slouken@1895
   807
SDL_GetWMInfo(SDL_SysWMinfo * info)
slouken@1895
   808
{
slouken@1895
   809
    return SDL_GetWindowWMInfo(SDL_VideoWindow, info);
slouken@1895
   810
}
slouken@1895
   811
slouken@1895
   812
#if 0
slouken@1895
   813
void
slouken@1895
   814
SDL_MoveCursor(int x, int y)
slouken@1895
   815
{
slouken@1895
   816
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
   817
slouken@1895
   818
    /* Erase and update the current mouse position */
slouken@1895
   819
    if (SHOULD_DRAWCURSOR(SDL_cursorstate)) {
slouken@1895
   820
        /* Erase and redraw mouse cursor in new position */
slouken@1895
   821
        SDL_LockCursor();
slouken@1895
   822
        SDL_EraseCursor(SDL_VideoSurface);
slouken@1895
   823
        SDL_cursor->area.x = (x - SDL_cursor->hot_x);
slouken@1895
   824
        SDL_cursor->area.y = (y - SDL_cursor->hot_y);
slouken@1895
   825
        SDL_DrawCursor(SDL_VideoSurface);
slouken@1895
   826
        SDL_UnlockCursor();
slouken@1895
   827
    } else if (_this->MoveWMCursor) {
slouken@1895
   828
        _this->MoveWMCursor(_this, x, y);
slouken@1895
   829
    }
slouken@1895
   830
}
slouken@1895
   831
slouken@1895
   832
/* Keep track of the current cursor colors */
slouken@1895
   833
static int palette_changed = 1;
slouken@1895
   834
static Uint8 pixels8[2];
slouken@1895
   835
slouken@1895
   836
void
slouken@1895
   837
SDL_CursorPaletteChanged(void)
slouken@1895
   838
{
slouken@1895
   839
    palette_changed = 1;
slouken@1895
   840
}
slouken@1895
   841
slouken@1895
   842
void
slouken@1895
   843
SDL_MouseRect(SDL_Rect * area)
slouken@1895
   844
{
slouken@1895
   845
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
   846
    int clip_diff;
slouken@1895
   847
slouken@1895
   848
    *area = SDL_cursor->area;
slouken@1895
   849
    if (area->x < 0) {
slouken@1895
   850
        area->w += area->x;
slouken@1895
   851
        area->x = 0;
slouken@1895
   852
    }
slouken@1895
   853
    if (area->y < 0) {
slouken@1895
   854
        area->h += area->y;
slouken@1895
   855
        area->y = 0;
slouken@1895
   856
    }
slouken@1895
   857
    clip_diff = (area->x + area->w) - SDL_VideoSurface->w;
slouken@1895
   858
    if (clip_diff > 0) {
slouken@1895
   859
        area->w = area->w < clip_diff ? 0 : area->w - clip_diff;
slouken@1895
   860
    }
slouken@1895
   861
    clip_diff = (area->y + area->h) - SDL_VideoSurface->h;
slouken@1895
   862
    if (clip_diff > 0) {
slouken@1895
   863
        area->h = area->h < clip_diff ? 0 : area->h - clip_diff;
slouken@1895
   864
    }
slouken@1895
   865
}
slouken@1895
   866
slouken@1895
   867
static void
slouken@1895
   868
SDL_DrawCursorFast(SDL_Surface * screen, SDL_Rect * area)
slouken@1895
   869
{
slouken@1895
   870
    const Uint32 pixels[2] = { 0xFFFFFFFF, 0x00000000 };
slouken@1895
   871
    int i, w, h;
slouken@1895
   872
    Uint8 *data, datab;
slouken@1895
   873
    Uint8 *mask, maskb;
slouken@1895
   874
slouken@1895
   875
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
slouken@1895
   876
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
slouken@1895
   877
    switch (screen->format->BytesPerPixel) {
slouken@1895
   878
slouken@1895
   879
    case 1:
slouken@1895
   880
        {
slouken@1895
   881
            Uint8 *dst;
slouken@1895
   882
            int dstskip;
slouken@1895
   883
slouken@1895
   884
            if (palette_changed) {
slouken@1895
   885
                pixels8[0] =
slouken@1895
   886
                    (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
slouken@1895
   887
                pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
slouken@1895
   888
                palette_changed = 0;
slouken@1895
   889
            }
slouken@1895
   890
            dst = (Uint8 *) screen->pixels +
slouken@1895
   891
                (SDL_cursor->area.y + area->y) * screen->pitch +
slouken@1895
   892
                SDL_cursor->area.x;
slouken@1895
   893
            dstskip = screen->pitch - area->w;
slouken@1895
   894
slouken@1895
   895
            for (h = area->h; h; h--) {
slouken@1895
   896
                for (w = area->w / 8; w; w--) {
slouken@1895
   897
                    maskb = *mask++;
slouken@1895
   898
                    datab = *data++;
slouken@1895
   899
                    for (i = 0; i < 8; ++i) {
slouken@1895
   900
                        if (maskb & 0x80) {
slouken@1895
   901
                            *dst = pixels8[datab >> 7];
slouken@1895
   902
                        }
slouken@1895
   903
                        maskb <<= 1;
slouken@1895
   904
                        datab <<= 1;
slouken@1895
   905
                        dst++;
slouken@1895
   906
                    }
slouken@1895
   907
                }
slouken@1895
   908
                dst += dstskip;
slouken@1895
   909
            }
slouken@1895
   910
        }
slouken@1895
   911
        break;
slouken@1895
   912
slouken@1895
   913
    case 2:
slouken@1895
   914
        {
slouken@1895
   915
            Uint16 *dst;
slouken@1895
   916
            int dstskip;
slouken@1895
   917
slouken@1895
   918
            dst = (Uint16 *) screen->pixels +
slouken@1895
   919
                (SDL_cursor->area.y + area->y) * screen->pitch / 2 +
slouken@1895
   920
                SDL_cursor->area.x;
slouken@1895
   921
            dstskip = (screen->pitch / 2) - area->w;
slouken@1895
   922
slouken@1895
   923
            for (h = area->h; h; h--) {
slouken@1895
   924
                for (w = area->w / 8; w; w--) {
slouken@1895
   925
                    maskb = *mask++;
slouken@1895
   926
                    datab = *data++;
slouken@1895
   927
                    for (i = 0; i < 8; ++i) {
slouken@1895
   928
                        if (maskb & 0x80) {
slouken@1895
   929
                            *dst = (Uint16) pixels[datab >> 7];
slouken@1895
   930
                        }
slouken@1895
   931
                        maskb <<= 1;
slouken@1895
   932
                        datab <<= 1;
slouken@1895
   933
                        dst++;
slouken@1895
   934
                    }
slouken@1895
   935
                }
slouken@1895
   936
                dst += dstskip;
slouken@1895
   937
            }
slouken@1895
   938
        }
slouken@1895
   939
        break;
slouken@1895
   940
slouken@1895
   941
    case 3:
slouken@1895
   942
        {
slouken@1895
   943
            Uint8 *dst;
slouken@1895
   944
            int dstskip;
slouken@1895
   945
slouken@1895
   946
            dst = (Uint8 *) screen->pixels +
slouken@1895
   947
                (SDL_cursor->area.y + area->y) * screen->pitch +
slouken@1895
   948
                SDL_cursor->area.x * 3;
slouken@1895
   949
            dstskip = screen->pitch - area->w * 3;
slouken@1895
   950
slouken@1895
   951
            for (h = area->h; h; h--) {
slouken@1895
   952
                for (w = area->w / 8; w; w--) {
slouken@1895
   953
                    maskb = *mask++;
slouken@1895
   954
                    datab = *data++;
slouken@1895
   955
                    for (i = 0; i < 8; ++i) {
slouken@1895
   956
                        if (maskb & 0x80) {
slouken@1895
   957
                            SDL_memset(dst, pixels[datab >> 7], 3);
slouken@1895
   958
                        }
slouken@1895
   959
                        maskb <<= 1;
slouken@1895
   960
                        datab <<= 1;
slouken@1895
   961
                        dst += 3;
slouken@1895
   962
                    }
slouken@1895
   963
                }
slouken@1895
   964
                dst += dstskip;
slouken@1895
   965
            }
slouken@1895
   966
        }
slouken@1895
   967
        break;
slouken@1895
   968
slouken@1895
   969
    case 4:
slouken@1895
   970
        {
slouken@1895
   971
            Uint32 *dst;
slouken@1895
   972
            int dstskip;
slouken@1895
   973
slouken@1895
   974
            dst = (Uint32 *) screen->pixels +
slouken@1895
   975
                (SDL_cursor->area.y + area->y) * screen->pitch / 4 +
slouken@1895
   976
                SDL_cursor->area.x;
slouken@1895
   977
            dstskip = (screen->pitch / 4) - area->w;
slouken@1895
   978
slouken@1895
   979
            for (h = area->h; h; h--) {
slouken@1895
   980
                for (w = area->w / 8; w; w--) {
slouken@1895
   981
                    maskb = *mask++;
slouken@1895
   982
                    datab = *data++;
slouken@1895
   983
                    for (i = 0; i < 8; ++i) {
slouken@1895
   984
                        if (maskb & 0x80) {
slouken@1895
   985
                            *dst = pixels[datab >> 7];
slouken@1895
   986
                        }
slouken@1895
   987
                        maskb <<= 1;
slouken@1895
   988
                        datab <<= 1;
slouken@1895
   989
                        dst++;
slouken@1895
   990
                    }
slouken@1895
   991
                }
slouken@1895
   992
                dst += dstskip;
slouken@1895
   993
            }
slouken@1895
   994
        }
slouken@1895
   995
        break;
slouken@1895
   996
    }
slouken@1895
   997
}
slouken@1895
   998
slouken@1895
   999
static void
slouken@1895
  1000
SDL_DrawCursorSlow(SDL_Surface * screen, SDL_Rect * area)
slouken@1895
  1001
{
slouken@1895
  1002
    const Uint32 pixels[2] = { 0xFFFFFF, 0x000000 };
slouken@1895
  1003
    int h;
slouken@1895
  1004
    int x, minx, maxx;
slouken@1895
  1005
    Uint8 *data, datab = 0;
slouken@1895
  1006
    Uint8 *mask, maskb = 0;
slouken@1895
  1007
    Uint8 *dst;
slouken@1895
  1008
    int dstbpp, dstskip;
slouken@1895
  1009
slouken@1895
  1010
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
slouken@1895
  1011
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
slouken@1895
  1012
    dstbpp = screen->format->BytesPerPixel;
slouken@1895
  1013
    dst = (Uint8 *) screen->pixels +
slouken@1895
  1014
        (SDL_cursor->area.y + area->y) * screen->pitch +
slouken@1895
  1015
        SDL_cursor->area.x * dstbpp;
slouken@1895
  1016
    dstskip = screen->pitch - SDL_cursor->area.w * dstbpp;
slouken@1895
  1017
slouken@1895
  1018
    minx = area->x;
slouken@1895
  1019
    maxx = area->x + area->w;
slouken@1895
  1020
    if (screen->format->BytesPerPixel == 1) {
slouken@1895
  1021
        if (palette_changed) {
slouken@1895
  1022
            pixels8[0] = (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
slouken@1895
  1023
            pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
slouken@1895
  1024
            palette_changed = 0;
slouken@1895
  1025
        }
slouken@1895
  1026
        for (h = area->h; h; h--) {
slouken@1895
  1027
            for (x = 0; x < SDL_cursor->area.w; ++x) {
slouken@1895
  1028
                if ((x % 8) == 0) {
slouken@1895
  1029
                    maskb = *mask++;
slouken@1895
  1030
                    datab = *data++;
slouken@1895
  1031
                }
slouken@1895
  1032
                if ((x >= minx) && (x < maxx)) {
slouken@1895
  1033
                    if (maskb & 0x80) {
slouken@1895
  1034
                        SDL_memset(dst, pixels8[datab >> 7], dstbpp);
slouken@1895
  1035
                    }
slouken@1895
  1036
                }
slouken@1895
  1037
                maskb <<= 1;
slouken@1895
  1038
                datab <<= 1;
slouken@1895
  1039
                dst += dstbpp;
slouken@1895
  1040
            }
slouken@1895
  1041
            dst += dstskip;
slouken@1895
  1042
        }
slouken@1895
  1043
    } else {
slouken@1895
  1044
        for (h = area->h; h; h--) {
slouken@1895
  1045
            for (x = 0; x < SDL_cursor->area.w; ++x) {
slouken@1895
  1046
                if ((x % 8) == 0) {
slouken@1895
  1047
                    maskb = *mask++;
slouken@1895
  1048
                    datab = *data++;
slouken@1895
  1049
                }
slouken@1895
  1050
                if ((x >= minx) && (x < maxx)) {
slouken@1895
  1051
                    if (maskb & 0x80) {
slouken@1895
  1052
                        SDL_memset(dst, pixels[datab >> 7], dstbpp);
slouken@1895
  1053
                    }
slouken@1895
  1054
                }
slouken@1895
  1055
                maskb <<= 1;
slouken@1895
  1056
                datab <<= 1;
slouken@1895
  1057
                dst += dstbpp;
slouken@1895
  1058
            }
slouken@1895
  1059
            dst += dstskip;
slouken@1895
  1060
        }
slouken@1895
  1061
    }
slouken@1895
  1062
}
slouken@1895
  1063
slouken@1895
  1064
/* This handles the ugly work of converting the saved cursor background from
slouken@1895
  1065
   the pixel format of the shadow surface to that of the video surface.
slouken@1895
  1066
   This is only necessary when blitting from a shadow surface of a different
slouken@1895
  1067
   pixel format than the video surface, and using a software rendered cursor.
slouken@1895
  1068
*/
slouken@1895
  1069
static void
slouken@1895
  1070
SDL_ConvertCursorSave(SDL_Surface * screen, int w, int h)
slouken@1895
  1071
{
slouken@1895
  1072
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1073
    SDL_BlitInfo info;
slouken@1895
  1074
    SDL_loblit RunBlit;
slouken@1895
  1075
slouken@1895
  1076
    /* Make sure we can steal the blit mapping */
slouken@1895
  1077
    if (screen->map->dst != SDL_VideoSurface) {
slouken@1895
  1078
        return;
slouken@1895
  1079
    }
slouken@1895
  1080
slouken@1895
  1081
    /* Set up the blit information */
slouken@1895
  1082
    info.s_pixels = SDL_cursor->save[1];
slouken@1895
  1083
    info.s_width = w;
slouken@1895
  1084
    info.s_height = h;
slouken@1895
  1085
    info.s_skip = 0;
slouken@1895
  1086
    info.d_pixels = SDL_cursor->save[0];
slouken@1895
  1087
    info.d_width = w;
slouken@1895
  1088
    info.d_height = h;
slouken@1895
  1089
    info.d_skip = 0;
slouken@1895
  1090
    info.aux_data = screen->map->sw_data->aux_data;
slouken@1895
  1091
    info.src = screen->format;
slouken@1895
  1092
    info.table = screen->map->table;
slouken@1895
  1093
    info.dst = SDL_VideoSurface->format;
slouken@1895
  1094
    RunBlit = screen->map->sw_data->blit;
slouken@1895
  1095
slouken@1895
  1096
    /* Run the actual software blit */
slouken@1895
  1097
    RunBlit(&info);
slouken@1895
  1098
}
slouken@1895
  1099
slouken@1895
  1100
void
slouken@1895
  1101
SDL_DrawCursorNoLock(SDL_Surface * screen)
slouken@1895
  1102
{
slouken@1895
  1103
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1104
    SDL_Rect area;
slouken@1895
  1105
slouken@1895
  1106
    /* Get the mouse rectangle, clipped to the screen */
slouken@1895
  1107
    SDL_MouseRect(&area);
slouken@1895
  1108
    if ((area.w == 0) || (area.h == 0)) {
slouken@1895
  1109
        return;
slouken@1895
  1110
    }
slouken@1895
  1111
slouken@1895
  1112
    /* Copy mouse background */
slouken@1895
  1113
    {
slouken@1895
  1114
        int w, h, screenbpp;
slouken@1895
  1115
        Uint8 *src, *dst;
slouken@1895
  1116
slouken@1895
  1117
        /* Set up the copy pointers */
slouken@1895
  1118
        screenbpp = screen->format->BytesPerPixel;
slouken@1895
  1119
        if ((screen == SDL_VideoSurface) ||
slouken@1895
  1120
            FORMAT_EQUAL(screen->format, SDL_VideoSurface->format)) {
slouken@1895
  1121
            dst = SDL_cursor->save[0];
slouken@1895
  1122
        } else {
slouken@1895
  1123
            dst = SDL_cursor->save[1];
slouken@1895
  1124
        }
slouken@1895
  1125
        src = (Uint8 *) screen->pixels + area.y * screen->pitch +
slouken@1895
  1126
            area.x * screenbpp;
slouken@1895
  1127
slouken@1895
  1128
        /* Perform the copy */
slouken@1895
  1129
        w = area.w * screenbpp;
slouken@1895
  1130
        h = area.h;
slouken@1895
  1131
        while (h--) {
slouken@1895
  1132
            SDL_memcpy(dst, src, w);
slouken@1895
  1133
            dst += w;
slouken@1895
  1134
            src += screen->pitch;
slouken@1895
  1135
        }
slouken@1895
  1136
    }
slouken@1895
  1137
slouken@1895
  1138
    /* Draw the mouse cursor */
slouken@1895
  1139
    area.x -= SDL_cursor->area.x;
slouken@1895
  1140
    area.y -= SDL_cursor->area.y;
slouken@1895
  1141
    if ((area.x == 0) && (area.w == SDL_cursor->area.w)) {
slouken@1895
  1142
        SDL_DrawCursorFast(screen, &area);
slouken@1895
  1143
    } else {
slouken@1895
  1144
        SDL_DrawCursorSlow(screen, &area);
slouken@1895
  1145
    }
slouken@1895
  1146
}
slouken@1895
  1147
slouken@1895
  1148
void
slouken@1895
  1149
SDL_DrawCursor(SDL_Surface * screen)
slouken@1895
  1150
{
slouken@1895
  1151
    /* Lock the screen if necessary */
slouken@1895
  1152
    if (screen == NULL) {
slouken@1895
  1153
        return;
slouken@1895
  1154
    }
slouken@1895
  1155
    if (SDL_MUSTLOCK(screen)) {
slouken@1895
  1156
        if (SDL_LockSurface(screen) < 0) {
slouken@1895
  1157
            return;
slouken@1895
  1158
        }
slouken@1895
  1159
    }
slouken@1895
  1160
slouken@1895
  1161
    SDL_DrawCursorNoLock(screen);
slouken@1895
  1162
slouken@1895
  1163
    /* Unlock the screen and update if necessary */
slouken@1895
  1164
    if (SDL_MUSTLOCK(screen)) {
slouken@1895
  1165
        SDL_UnlockSurface(screen);
slouken@1895
  1166
    }
slouken@1895
  1167
    if ((screen->flags & SDL_SCREEN_SURFACE) &&
slouken@1895
  1168
        !(screen->flags & SDL_HWSURFACE)) {
slouken@1895
  1169
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1170
        SDL_Window *window;
slouken@1895
  1171
        SDL_Rect area;
slouken@1895
  1172
slouken@1895
  1173
        window = SDL_GetWindowFromSurface(screen);
slouken@1895
  1174
        if (!window) {
slouken@1895
  1175
            return;
slouken@1895
  1176
        }
slouken@1895
  1177
slouken@1895
  1178
        SDL_MouseRect(&area);
slouken@1895
  1179
slouken@1895
  1180
        if (_this->UpdateWindowSurface) {
slouken@1895
  1181
            _this->UpdateWindowSurface(_this, window, 1, &area);
slouken@1895
  1182
        }
slouken@1895
  1183
    }
slouken@1895
  1184
}
slouken@1895
  1185
slouken@1895
  1186
void
slouken@1895
  1187
SDL_EraseCursorNoLock(SDL_Surface * screen)
slouken@1895
  1188
{
slouken@1895
  1189
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1190
    SDL_Window *window;
slouken@1895
  1191
    SDL_Rect area;
slouken@1895
  1192
slouken@1895
  1193
    /* Get the window associated with the surface */
slouken@1895
  1194
    window = SDL_GetWindowFromSurface(screen);
slouken@1895
  1195
    if (!window || !window->surface) {
slouken@1895
  1196
        return;
slouken@1895
  1197
    }
slouken@1895
  1198
slouken@1895
  1199
    /* Get the mouse rectangle, clipped to the screen */
slouken@1895
  1200
    SDL_MouseRect(&area);
slouken@1895
  1201
    if ((area.w == 0) || (area.h == 0)) {
slouken@1895
  1202
        return;
slouken@1895
  1203
    }
slouken@1895
  1204
slouken@1895
  1205
    /* Copy mouse background */
slouken@1895
  1206
    {
slouken@1895
  1207
        int w, h, screenbpp;
slouken@1895
  1208
        Uint8 *src, *dst;
slouken@1895
  1209
slouken@1895
  1210
        /* Set up the copy pointers */
slouken@1895
  1211
        screenbpp = screen->format->BytesPerPixel;
slouken@1895
  1212
        if ((screen->flags & SDL_SCREEN_SURFACE) ||
slouken@1895
  1213
            FORMAT_EQUAL(screen->format, window->surface->format)) {
slouken@1895
  1214
            src = SDL_cursor->save[0];
slouken@1895
  1215
        } else {
slouken@1895
  1216
            src = SDL_cursor->save[1];
slouken@1895
  1217
        }
slouken@1895
  1218
        dst = (Uint8 *) screen->pixels + area.y * screen->pitch +
slouken@1895
  1219
            area.x * screenbpp;
slouken@1895
  1220
slouken@1895
  1221
        /* Perform the copy */
slouken@1895
  1222
        w = area.w * screenbpp;
slouken@1895
  1223
        h = area.h;
slouken@1895
  1224
        while (h--) {
slouken@1895
  1225
            SDL_memcpy(dst, src, w);
slouken@1895
  1226
            src += w;
slouken@1895
  1227
            dst += screen->pitch;
slouken@1895
  1228
        }
slouken@1895
  1229
slouken@1895
  1230
        /* Perform pixel conversion on cursor background */
slouken@1895
  1231
        if (src > SDL_cursor->save[1]) {
slouken@1895
  1232
            SDL_ConvertCursorSave(screen, area.w, area.h);
slouken@1895
  1233
        }
slouken@1895
  1234
    }
slouken@1895
  1235
}
slouken@1895
  1236
slouken@1895
  1237
void
slouken@1895
  1238
SDL_EraseCursor(SDL_Surface * screen)
slouken@1895
  1239
{
slouken@1895
  1240
    /* Lock the screen if necessary */
slouken@1895
  1241
    if (screen == NULL) {
slouken@1895
  1242
        return;
slouken@1895
  1243
    }
slouken@1895
  1244
    if (SDL_MUSTLOCK(screen)) {
slouken@1895
  1245
        if (SDL_LockSurface(screen) < 0) {
slouken@1895
  1246
            return;
slouken@1895
  1247
        }
slouken@1895
  1248
    }
slouken@1895
  1249
slouken@1895
  1250
    SDL_EraseCursorNoLock(screen);
slouken@1895
  1251
slouken@1895
  1252
    /* Unlock the screen and update if necessary */
slouken@1895
  1253
    if (SDL_MUSTLOCK(screen)) {
slouken@1895
  1254
        SDL_UnlockSurface(screen);
slouken@1895
  1255
    }
slouken@1895
  1256
    if ((screen->flags & SDL_SCREEN_SURFACE) &&
slouken@1895
  1257
        !(screen->flags & SDL_HWSURFACE)) {
slouken@1895
  1258
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1259
        SDL_Window *window;
slouken@1895
  1260
        SDL_Rect area;
slouken@1895
  1261
slouken@1895
  1262
        window = SDL_GetWindowFromSurface(screen);
slouken@1895
  1263
        if (!window) {
slouken@1895
  1264
            return;
slouken@1895
  1265
        }
slouken@1895
  1266
slouken@1895
  1267
        SDL_MouseRect(&area);
slouken@1895
  1268
slouken@1895
  1269
        if (_this->UpdateWindowSurface) {
slouken@1895
  1270
            _this->UpdateWindowSurface(_this, window, 1, &area);
slouken@1895
  1271
        }
slouken@1895
  1272
    }
slouken@1895
  1273
}
slouken@1895
  1274
slouken@1895
  1275
/* Reset the cursor on video mode change
slouken@1895
  1276
   FIXME:  Keep track of all cursors, and reset them all.
slouken@1895
  1277
 */
slouken@1895
  1278
void
slouken@1895
  1279
SDL_ResetCursor(void)
slouken@1895
  1280
{
slouken@1895
  1281
    int savelen;
slouken@1895
  1282
slouken@1895
  1283
    if (SDL_cursor) {
slouken@1895
  1284
        savelen = SDL_cursor->area.w * 4 * SDL_cursor->area.h;
slouken@1895
  1285
        SDL_cursor->area.x = 0;
slouken@1895
  1286
        SDL_cursor->area.y = 0;
slouken@1895
  1287
        SDL_memset(SDL_cursor->save[0], 0, savelen);
slouken@1895
  1288
    }
slouken@1895
  1289
}
slouken@1895
  1290
#endif
slouken@1895
  1291
slouken@1895
  1292
struct private_yuvhwdata
slouken@1895
  1293
{
slouken@1895
  1294
    Uint16 pitches[3];
slouken@1895
  1295
    Uint8 *planes[3];
slouken@1895
  1296
slouken@1895
  1297
    SDL_TextureID textureID;
slouken@1895
  1298
};
slouken@1895
  1299
slouken@1895
  1300
SDL_Overlay *
slouken@1895
  1301
SDL_CreateYUVOverlay(int w, int h, Uint32 format, SDL_Surface * display)
slouken@1895
  1302
{
slouken@1895
  1303
    SDL_Overlay *overlay;
slouken@1895
  1304
    Uint32 texture_format;
slouken@1895
  1305
slouken@1895
  1306
    if ((display->flags & SDL_OPENGL) == SDL_OPENGL) {
slouken@1895
  1307
        SDL_SetError("YUV overlays are not supported in OpenGL mode");
slouken@1895
  1308
        return NULL;
slouken@1895
  1309
    }
slouken@1895
  1310
slouken@1895
  1311
    if (display != SDL_PublicSurface) {
slouken@1895
  1312
        SDL_SetError("YUV display is only supported on the screen surface");
slouken@1895
  1313
        return NULL;
slouken@1895
  1314
    }
slouken@1895
  1315
slouken@1895
  1316
    switch (format) {
slouken@1895
  1317
    case SDL_YV12_OVERLAY:
slouken@1965
  1318
        texture_format = SDL_PIXELFORMAT_YV12;
slouken@1895
  1319
        break;
slouken@1895
  1320
    case SDL_IYUV_OVERLAY:
slouken@1965
  1321
        texture_format = SDL_PIXELFORMAT_IYUV;
slouken@1895
  1322
        break;
slouken@1895
  1323
    case SDL_YUY2_OVERLAY:
slouken@1965
  1324
        texture_format = SDL_PIXELFORMAT_YUY2;
slouken@1895
  1325
        break;
slouken@1895
  1326
    case SDL_UYVY_OVERLAY:
slouken@1965
  1327
        texture_format = SDL_PIXELFORMAT_UYVY;
slouken@1895
  1328
        break;
slouken@1895
  1329
    case SDL_YVYU_OVERLAY:
slouken@1965
  1330
        texture_format = SDL_PIXELFORMAT_YVYU;
slouken@1895
  1331
        break;
slouken@1895
  1332
    default:
slouken@1895
  1333
        SDL_SetError("Unknown YUV format");
slouken@1895
  1334
        return NULL;
slouken@1895
  1335
    }
slouken@1895
  1336
slouken@1895
  1337
    overlay = (SDL_Overlay *) SDL_malloc(sizeof(*overlay));
slouken@1895
  1338
    if (!overlay) {
slouken@1895
  1339
        SDL_OutOfMemory();
slouken@1895
  1340
        return NULL;
slouken@1895
  1341
    }
slouken@1895
  1342
    SDL_zerop(overlay);
slouken@1895
  1343
slouken@1895
  1344
    overlay->hwdata =
slouken@1895
  1345
        (struct private_yuvhwdata *) SDL_malloc(sizeof(*overlay->hwdata));
slouken@1895
  1346
    if (!overlay->hwdata) {
slouken@1895
  1347
        SDL_free(overlay);
slouken@1895
  1348
        SDL_OutOfMemory();
slouken@1895
  1349
        return NULL;
slouken@1895
  1350
    }
slouken@1895
  1351
slouken@1895
  1352
    overlay->format = format;
slouken@1895
  1353
    overlay->w = w;
slouken@1895
  1354
    overlay->h = h;
slouken@1895
  1355
    if (format == SDL_YV12_OVERLAY || format == SDL_IYUV_OVERLAY) {
slouken@1895
  1356
        overlay->planes = 3;
slouken@1895
  1357
    } else {
slouken@1895
  1358
        overlay->planes = 1;
slouken@1895
  1359
    }
slouken@1895
  1360
    overlay->pitches = overlay->hwdata->pitches;
slouken@1895
  1361
    overlay->pixels = overlay->hwdata->planes;
slouken@1895
  1362
slouken@1895
  1363
    switch (format) {
slouken@1895
  1364
    case SDL_YV12_OVERLAY:
slouken@1895
  1365
    case SDL_IYUV_OVERLAY:
slouken@1895
  1366
        overlay->pitches[0] = overlay->w;
slouken@1895
  1367
        overlay->pitches[1] = overlay->w / 2;
slouken@1895
  1368
        overlay->pitches[2] = overlay->w / 2;
slouken@1895
  1369
        break;
slouken@1895
  1370
    case SDL_YUY2_OVERLAY:
slouken@1895
  1371
    case SDL_UYVY_OVERLAY:
slouken@1895
  1372
    case SDL_YVYU_OVERLAY:
slouken@1895
  1373
        overlay->pitches[0] = overlay->w * 2;
slouken@1895
  1374
        break;
slouken@1895
  1375
    }
slouken@1895
  1376
slouken@1895
  1377
    overlay->hwdata->textureID =
slouken@1965
  1378
        SDL_CreateTexture(texture_format, SDL_TEXTUREACCESS_LOCAL, w, h);
slouken@1895
  1379
    if (!overlay->hwdata->textureID) {
slouken@1895
  1380
        SDL_FreeYUVOverlay(overlay);
slouken@1895
  1381
        return NULL;
slouken@1895
  1382
    }
slouken@1895
  1383
slouken@1895
  1384
    return overlay;
slouken@1895
  1385
}
slouken@1895
  1386
slouken@1895
  1387
int
slouken@1895
  1388
SDL_LockYUVOverlay(SDL_Overlay * overlay)
slouken@1895
  1389
{
slouken@1895
  1390
    void *pixels;
slouken@1895
  1391
    int pitch;
slouken@1895
  1392
    if (SDL_LockTexture(overlay->hwdata->textureID, NULL, 1, &pixels, &pitch)
slouken@1895
  1393
        < 0) {
slouken@1895
  1394
        return -1;
slouken@1895
  1395
    }
slouken@1895
  1396
    switch (overlay->format) {
slouken@1895
  1397
    case SDL_YV12_OVERLAY:
slouken@1895
  1398
    case SDL_IYUV_OVERLAY:
slouken@1895
  1399
        overlay->pixels[0] = (Uint8 *) pixels;
slouken@1895
  1400
        overlay->pixels[1] =
slouken@1895
  1401
            overlay->pixels[0] + overlay->pitches[0] * overlay->h;
slouken@1895
  1402
        overlay->pixels[2] =
slouken@1895
  1403
            overlay->pixels[1] + overlay->pitches[1] * overlay->h;
slouken@1895
  1404
        break;
slouken@1895
  1405
    case SDL_YUY2_OVERLAY:
slouken@1895
  1406
    case SDL_UYVY_OVERLAY:
slouken@1895
  1407
    case SDL_YVYU_OVERLAY:
slouken@1895
  1408
        overlay->pixels[0] = (Uint8 *) pixels;
slouken@1895
  1409
        break;
slouken@1895
  1410
    }
slouken@1895
  1411
    return 0;
slouken@1895
  1412
}
slouken@1895
  1413
slouken@1895
  1414
void
slouken@1895
  1415
SDL_UnlockYUVOverlay(SDL_Overlay * overlay)
slouken@1895
  1416
{
slouken@1895
  1417
    SDL_UnlockTexture(overlay->hwdata->textureID);
slouken@1895
  1418
}
slouken@1895
  1419
slouken@1895
  1420
int
slouken@1895
  1421
SDL_DisplayYUVOverlay(SDL_Overlay * overlay, SDL_Rect * dstrect)
slouken@1895
  1422
{
slouken@1985
  1423
    if (SDL_RenderCopy(overlay->hwdata->textureID, NULL, dstrect) < 0) {
slouken@1895
  1424
        return -1;
slouken@1895
  1425
    }
slouken@1895
  1426
    SDL_RenderPresent();
slouken@1895
  1427
    return 0;
slouken@1895
  1428
}
slouken@1895
  1429
slouken@1895
  1430
void
slouken@1895
  1431
SDL_FreeYUVOverlay(SDL_Overlay * overlay)
slouken@1895
  1432
{
slouken@1895
  1433
    if (overlay) {
slouken@1895
  1434
        if (overlay->hwdata) {
slouken@1895
  1435
            if (overlay->hwdata->textureID) {
slouken@1895
  1436
                SDL_DestroyTexture(overlay->hwdata->textureID);
slouken@1895
  1437
            }
slouken@1895
  1438
            SDL_free(overlay->hwdata);
slouken@1895
  1439
        }
slouken@1895
  1440
        SDL_free(overlay);
slouken@1895
  1441
    }
slouken@1895
  1442
}
slouken@1895
  1443
slouken@1912
  1444
void
slouken@1912
  1445
SDL_GL_SwapBuffers(void)
slouken@1912
  1446
{
slouken@1912
  1447
    SDL_GL_SwapWindow(SDL_VideoWindow);
slouken@1912
  1448
}
slouken@1912
  1449
slouken@1895
  1450
/* vi: set ts=4 sw=4 expandtab: */