src/SDL_compat.c
author Sam Lantinga <slouken@libsdl.org>
Sat, 29 Nov 2008 06:27:26 +0000
changeset 2803 8fe261aae1bb
parent 2796 9f6601537163
child 2807 365fe1a2aad5
permissions -rw-r--r--
Fixed the texture format for the software fallback
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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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#include "video/SDL_yuv_sw_c.h"
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static SDL_WindowID SDL_VideoWindow = 0;
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static SDL_RendererInfo SDL_VideoRendererInfo;
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static SDL_TextureID SDL_VideoTexture = 0;
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static SDL_Surface *SDL_VideoSurface = NULL;
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static SDL_Surface *SDL_ShadowSurface = NULL;
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static SDL_Surface *SDL_PublicSurface = NULL;
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static SDL_GLContext *SDL_VideoContext = NULL;
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static char *wm_title = NULL;
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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_TEXTINPUT:
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        {
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            /* FIXME: Generate an old style key repeat event if needed */
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            //printf("TEXTINPUT: '%s'\n", event->text.text);
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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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            if (event->wheel.y == 0) {
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                break;
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            }
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            selected = SDL_SelectMouse(event->wheel.which);
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            SDL_GetMouseState(selected, &x, &y);
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            SDL_SelectMouse(selected);
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            if (event->wheel.y > 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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    const char *window = SDL_getenv("SDL_VIDEO_WINDOW_POS");
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    const char *center = SDL_getenv("SDL_VIDEO_CENTERED");
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    if (window) {
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        if (SDL_sscanf(window, "%d,%d", x, y) == 2) {
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            return;
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        }
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        if (SDL_strcmp(window, "center") == 0) {
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            center = window;
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        }
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    }
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    if (center) {
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        SDL_DisplayMode mode;
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   325
        SDL_GetDesktopDisplayMode(&mode);
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        *x = (mode.w - w) / 2;
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        *y = (mode.h - h) / 2;
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    }
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   329
}
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   331
static SDL_Surface *
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CreateVideoSurface(SDL_TextureID textureID)
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   333
{
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   334
    SDL_Surface *surface;
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    Uint32 format;
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   336
    int w, h;
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   337
    int bpp;
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   338
    Uint32 Rmask, Gmask, Bmask, Amask;
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   339
    void *pixels;
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   340
    int pitch;
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   341
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   342
    if (SDL_QueryTexture(textureID, &format, NULL, &w, &h) < 0) {
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   343
        return NULL;
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   344
    }
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   345
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   346
    if (!SDL_PixelFormatEnumToMasks
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   347
        (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
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   348
        SDL_SetError("Unknown texture format");
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   349
        return NULL;
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   350
    }
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   351
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   352
    if (SDL_QueryTexturePixels(textureID, &pixels, &pitch) == 0) {
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        surface =
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            SDL_CreateRGBSurfaceFrom(pixels, w, h, bpp, pitch, Rmask, Gmask,
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                                     Bmask, Amask);
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   356
    } else {
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   357
        surface =
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            SDL_CreateRGBSurface(0, w, h, bpp, Rmask, Gmask, Bmask, Amask);
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   359
    }
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   360
    return surface;
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   361
}
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   362
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   363
SDL_Surface *
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   364
SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags)
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   365
{
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   366
    SDL_DisplayMode desktop_mode;
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   367
    SDL_DisplayMode mode;
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   368
    int window_x = SDL_WINDOWPOS_UNDEFINED;
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   369
    int window_y = SDL_WINDOWPOS_UNDEFINED;
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   370
    Uint32 window_flags;
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   371
    Uint32 desktop_format;
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   372
    Uint32 desired_format;
slouken@1895
   373
    Uint32 surface_flags;
slouken@2796
   374
    Uint32 black;
slouken@1895
   375
slouken@1895
   376
    if (!SDL_GetVideoDevice()) {
slouken@1895
   377
        if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE) < 0) {
slouken@1895
   378
            return NULL;
slouken@1895
   379
        }
slouken@1895
   380
    }
slouken@1895
   381
slouken@1895
   382
    /* Destroy existing window */
slouken@1895
   383
    SDL_PublicSurface = NULL;
slouken@1895
   384
    if (SDL_ShadowSurface) {
slouken@1895
   385
        SDL_FreeSurface(SDL_ShadowSurface);
slouken@1895
   386
        SDL_ShadowSurface = NULL;
slouken@1895
   387
    }
slouken@1895
   388
    if (SDL_VideoSurface) {
slouken@1895
   389
        SDL_DelPaletteWatch(SDL_VideoSurface->format->palette,
slouken@1895
   390
                            SDL_VideoPaletteChanged, NULL);
slouken@1895
   391
        SDL_FreeSurface(SDL_VideoSurface);
slouken@1895
   392
        SDL_VideoSurface = NULL;
slouken@1895
   393
    }
slouken@1912
   394
    if (SDL_VideoContext) {
bob@2328
   395
        /* SDL_GL_MakeCurrent(0, NULL); *//* Doesn't do anything */
slouken@1912
   396
        SDL_GL_DeleteContext(SDL_VideoContext);
slouken@1912
   397
        SDL_VideoContext = NULL;
slouken@1912
   398
    }
slouken@1895
   399
    if (SDL_VideoWindow) {
slouken@1895
   400
        SDL_GetWindowPosition(SDL_VideoWindow, &window_x, &window_y);
bob@2322
   401
        SDL_DestroyWindow(SDL_VideoWindow);
slouken@1895
   402
    }
slouken@1895
   403
slouken@1895
   404
    /* Set up the event filter */
slouken@1895
   405
    if (!SDL_GetEventFilter(NULL, NULL)) {
slouken@1895
   406
        SDL_SetEventFilter(SDL_CompatEventFilter, NULL);
slouken@1895
   407
    }
slouken@1895
   408
slouken@1895
   409
    /* Create a new window */
slouken@1895
   410
    window_flags = SDL_WINDOW_SHOWN;
slouken@1895
   411
    if (flags & SDL_FULLSCREEN) {
slouken@1895
   412
        window_flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
   413
    }
slouken@1895
   414
    if (flags & SDL_OPENGL) {
slouken@1895
   415
        window_flags |= SDL_WINDOW_OPENGL;
slouken@1895
   416
    }
slouken@1895
   417
    if (flags & SDL_RESIZABLE) {
slouken@1895
   418
        window_flags |= SDL_WINDOW_RESIZABLE;
slouken@1895
   419
    }
slouken@1895
   420
    if (flags & SDL_NOFRAME) {
slouken@1895
   421
        window_flags |= SDL_WINDOW_BORDERLESS;
slouken@1895
   422
    }
slouken@1895
   423
    GetEnvironmentWindowPosition(width, height, &window_x, &window_y);
slouken@1895
   424
    SDL_SetFullscreenDisplayMode(NULL);
slouken@1895
   425
    SDL_VideoWindow =
slouken@1895
   426
        SDL_CreateWindow(wm_title, window_x, window_y, width, height,
slouken@1895
   427
                         window_flags);
slouken@1895
   428
    if (!SDL_VideoWindow) {
slouken@1895
   429
        return NULL;
slouken@1895
   430
    }
slouken@1895
   431
slouken@1895
   432
    window_flags = SDL_GetWindowFlags(SDL_VideoWindow);
slouken@1895
   433
    surface_flags = 0;
slouken@1895
   434
    if (window_flags & SDL_WINDOW_FULLSCREEN) {
slouken@1895
   435
        surface_flags |= SDL_FULLSCREEN;
slouken@1895
   436
    }
slouken@1895
   437
    if (window_flags & SDL_WINDOW_OPENGL) {
slouken@1895
   438
        surface_flags |= SDL_OPENGL;
slouken@1895
   439
    }
slouken@1895
   440
    if (window_flags & SDL_WINDOW_RESIZABLE) {
slouken@1895
   441
        surface_flags |= SDL_RESIZABLE;
slouken@1895
   442
    }
slouken@1895
   443
    if (window_flags & SDL_WINDOW_BORDERLESS) {
slouken@1895
   444
        surface_flags |= SDL_NOFRAME;
slouken@1895
   445
    }
slouken@1895
   446
slouken@1895
   447
    /* Set up the desired display mode */
slouken@1967
   448
    SDL_GetDesktopDisplayMode(&desktop_mode);
slouken@1967
   449
    desktop_format = desktop_mode.format;
slouken@1895
   450
    if (desktop_format && ((flags & SDL_ANYFORMAT)
slouken@1895
   451
                           || (bpp == SDL_BITSPERPIXEL(desktop_format)))) {
slouken@1895
   452
        desired_format = desktop_format;
slouken@1895
   453
    } else {
slouken@1895
   454
        switch (bpp) {
slouken@1895
   455
        case 0:
slouken@1895
   456
            if (desktop_format) {
slouken@1895
   457
                desired_format = desktop_format;
slouken@1895
   458
            } else {
slouken@1965
   459
                desired_format = SDL_PIXELFORMAT_RGB888;
slouken@1895
   460
            }
slouken@2240
   461
            bpp = SDL_BITSPERPIXEL(desired_format);
slouken@1895
   462
            break;
slouken@1895
   463
        case 8:
slouken@1965
   464
            desired_format = SDL_PIXELFORMAT_INDEX8;
slouken@1895
   465
            break;
slouken@1895
   466
        case 15:
slouken@1965
   467
            desired_format = SDL_PIXELFORMAT_RGB555;
slouken@1895
   468
            break;
slouken@1895
   469
        case 16:
slouken@1965
   470
            desired_format = SDL_PIXELFORMAT_RGB565;
slouken@1895
   471
            break;
slouken@1895
   472
        case 24:
slouken@1965
   473
            desired_format = SDL_PIXELFORMAT_RGB24;
slouken@1895
   474
            break;
slouken@1895
   475
        case 32:
slouken@1965
   476
            desired_format = SDL_PIXELFORMAT_RGB888;
slouken@1895
   477
            break;
slouken@1895
   478
        default:
slouken@1895
   479
            SDL_SetError("Unsupported bpp in SDL_SetVideoMode()");
slouken@1895
   480
            return NULL;
slouken@1895
   481
        }
slouken@1895
   482
    }
slouken@1895
   483
    mode.format = desired_format;
slouken@1895
   484
    mode.w = width;
slouken@1895
   485
    mode.h = height;
slouken@1895
   486
    mode.refresh_rate = 0;
slouken@1895
   487
slouken@1895
   488
    /* Set the desired display mode */
slouken@1895
   489
    if (flags & SDL_FULLSCREEN) {
slouken@1895
   490
        if (SDL_SetFullscreenDisplayMode(&mode) < 0) {
slouken@1895
   491
            return NULL;
slouken@1895
   492
        }
slouken@1895
   493
    }
slouken@1895
   494
slouken@1895
   495
    /* If we're in OpenGL mode, just create a stub surface and we're done! */
slouken@1895
   496
    if (flags & SDL_OPENGL) {
slouken@1912
   497
        SDL_VideoContext = SDL_GL_CreateContext(SDL_VideoWindow);
slouken@1912
   498
        if (!SDL_VideoContext) {
slouken@1912
   499
            return NULL;
slouken@1912
   500
        }
slouken@1912
   501
        if (SDL_GL_MakeCurrent(SDL_VideoWindow, SDL_VideoContext) < 0) {
slouken@1912
   502
            return NULL;
slouken@1912
   503
        }
slouken@1895
   504
        SDL_VideoSurface =
slouken@1895
   505
            SDL_CreateRGBSurfaceFrom(NULL, width, height, bpp, 0, 0, 0, 0, 0);
slouken@1895
   506
        if (!SDL_VideoSurface) {
slouken@1895
   507
            return NULL;
slouken@1895
   508
        }
slouken@1895
   509
        SDL_VideoSurface->flags |= surface_flags;
slouken@1895
   510
        SDL_PublicSurface = SDL_VideoSurface;
slouken@1895
   511
        return SDL_PublicSurface;
slouken@1895
   512
    }
slouken@1895
   513
slouken@1895
   514
    /* Create a renderer for the window */
slouken@1907
   515
    if (SDL_CreateRenderer
slouken@1907
   516
        (SDL_VideoWindow, -1,
slouken@1965
   517
         SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTDISCARD) < 0) {
slouken@1895
   518
        return NULL;
slouken@1895
   519
    }
slouken@2222
   520
    SDL_GetRendererInfo(&SDL_VideoRendererInfo);
slouken@1895
   521
slouken@1895
   522
    /* Create a texture for the screen surface */
slouken@1895
   523
    SDL_VideoTexture =
slouken@2222
   524
        SDL_CreateTexture(desired_format, SDL_TEXTUREACCESS_STREAMING, width,
slouken@1895
   525
                          height);
slouken@2765
   526
slouken@1895
   527
    if (!SDL_VideoTexture) {
slouken@1895
   528
        SDL_VideoTexture =
slouken@2765
   529
            SDL_CreateTexture(SDL_PIXELFORMAT_ABGR8888,
slouken@2222
   530
                              SDL_TEXTUREACCESS_STREAMING, width, height);
slouken@1895
   531
    }
slouken@1895
   532
    if (!SDL_VideoTexture) {
slouken@1895
   533
        return NULL;
slouken@1895
   534
    }
slouken@1895
   535
slouken@2765
   536
    SDL_SetTextureBlendMode(SDL_VideoTexture, SDL_TEXTUREBLENDMODE_NONE);
slouken@2765
   537
slouken@2765
   538
slouken@1895
   539
    /* Create the screen surface */
slouken@2222
   540
    SDL_VideoSurface = CreateVideoSurface(SDL_VideoTexture);
slouken@1895
   541
    if (!SDL_VideoSurface) {
slouken@1895
   542
        return NULL;
slouken@1895
   543
    }
slouken@1895
   544
    SDL_VideoSurface->flags |= surface_flags;
slouken@1895
   545
slouken@1895
   546
    /* Set a default screen palette */
slouken@1895
   547
    if (SDL_VideoSurface->format->palette) {
slouken@1895
   548
        SDL_VideoSurface->flags |= SDL_HWPALETTE;
slouken@1895
   549
        SDL_DitherColors(SDL_VideoSurface->format->palette->colors,
slouken@1895
   550
                         SDL_VideoSurface->format->BitsPerPixel);
slouken@1895
   551
        SDL_AddPaletteWatch(SDL_VideoSurface->format->palette,
slouken@1895
   552
                            SDL_VideoPaletteChanged, NULL);
slouken@1895
   553
        SDL_SetPaletteColors(SDL_VideoSurface->format->palette,
slouken@1895
   554
                             SDL_VideoSurface->format->palette->colors, 0,
slouken@1895
   555
                             SDL_VideoSurface->format->palette->ncolors);
slouken@1895
   556
    }
slouken@1895
   557
slouken@1895
   558
    /* Create a shadow surface if necessary */
slouken@2222
   559
    if ((bpp != SDL_VideoSurface->format->BitsPerPixel)
slouken@2222
   560
        && !(flags & SDL_ANYFORMAT)) {
slouken@2222
   561
        SDL_ShadowSurface =
slouken@2222
   562
            SDL_CreateRGBSurface(0, width, height, bpp, 0, 0, 0, 0);
slouken@1895
   563
        if (!SDL_ShadowSurface) {
slouken@1895
   564
            return NULL;
slouken@1895
   565
        }
slouken@1895
   566
        SDL_ShadowSurface->flags |= surface_flags;
slouken@1895
   567
slouken@1895
   568
        /* 8-bit SDL_ShadowSurface surfaces report that they have exclusive palette */
slouken@1895
   569
        if (SDL_ShadowSurface->format->palette) {
slouken@1895
   570
            SDL_ShadowSurface->flags |= SDL_HWPALETTE;
slouken@1895
   571
            if (SDL_VideoSurface->format->palette) {
slouken@1895
   572
                SDL_SetSurfacePalette(SDL_ShadowSurface,
slouken@1895
   573
                                      SDL_VideoSurface->format->palette);
slouken@1895
   574
            } else {
slouken@1895
   575
                SDL_DitherColors(SDL_ShadowSurface->format->palette->colors,
slouken@1895
   576
                                 SDL_ShadowSurface->format->BitsPerPixel);
slouken@1895
   577
            }
slouken@1895
   578
        }
slouken@1895
   579
    }
slouken@1895
   580
    SDL_PublicSurface =
slouken@1895
   581
        (SDL_ShadowSurface ? SDL_ShadowSurface : SDL_VideoSurface);
slouken@1895
   582
slouken@1895
   583
    /* Clear the surface for display */
slouken@2796
   584
    black = SDL_MapRGB(SDL_PublicSurface->format, 0, 0, 0);
slouken@2796
   585
    SDL_FillRect(SDL_PublicSurface, NULL, black);
slouken@1897
   586
    SDL_UpdateRect(SDL_PublicSurface, 0, 0, 0, 0);
slouken@1895
   587
slouken@1895
   588
    /* We're finally done! */
slouken@1895
   589
    return SDL_PublicSurface;
slouken@1895
   590
}
slouken@1895
   591
slouken@1895
   592
SDL_Surface *
slouken@1895
   593
SDL_GetVideoSurface(void)
slouken@1895
   594
{
slouken@1895
   595
    return SDL_PublicSurface;
slouken@1895
   596
}
slouken@1895
   597
slouken@2266
   598
int
slouken@2266
   599
SDL_SetAlpha(SDL_Surface * surface, Uint32 flag, Uint8 value)
slouken@2266
   600
{
slouken@2266
   601
    if (flag & SDL_RLEACCEL) {
slouken@2266
   602
        SDL_SetSurfaceRLE(surface, 1);
slouken@2266
   603
    }
slouken@2266
   604
    if (flag) {
slouken@2266
   605
        SDL_SetSurfaceAlphaMod(surface, value);
slouken@2266
   606
        SDL_SetSurfaceBlendMode(surface, SDL_TEXTUREBLENDMODE_BLEND);
slouken@2266
   607
    } else {
slouken@2266
   608
        SDL_SetSurfaceAlphaMod(surface, 0xFF);
slouken@2266
   609
        SDL_SetSurfaceBlendMode(surface, SDL_TEXTUREBLENDMODE_NONE);
slouken@2266
   610
    }
slouken@2266
   611
    return 0;
slouken@2266
   612
}
slouken@2266
   613
slouken@1895
   614
SDL_Surface *
slouken@1895
   615
SDL_DisplayFormat(SDL_Surface * surface)
slouken@1895
   616
{
slouken@2267
   617
    SDL_Surface *converted;
slouken@1895
   618
slouken@1895
   619
    if (!SDL_PublicSurface) {
slouken@1895
   620
        SDL_SetError("No video mode has been set");
slouken@1895
   621
        return NULL;
slouken@1895
   622
    }
slouken@1895
   623
slouken@1895
   624
    /* Set the flags appropriate for copying to display surface */
slouken@2267
   625
    converted = SDL_ConvertSurface(surface, SDL_PublicSurface->format, 0);
slouken@2267
   626
    SDL_SetSurfaceRLE(converted, 1);
slouken@2267
   627
    return converted;
slouken@1895
   628
}
slouken@1895
   629
slouken@1895
   630
SDL_Surface *
slouken@1895
   631
SDL_DisplayFormatAlpha(SDL_Surface * surface)
slouken@1895
   632
{
slouken@1895
   633
    SDL_PixelFormat *vf;
slouken@1895
   634
    SDL_PixelFormat *format;
slouken@1895
   635
    SDL_Surface *converted;
slouken@1895
   636
    /* default to ARGB8888 */
slouken@1895
   637
    Uint32 amask = 0xff000000;
slouken@1895
   638
    Uint32 rmask = 0x00ff0000;
slouken@1895
   639
    Uint32 gmask = 0x0000ff00;
slouken@1895
   640
    Uint32 bmask = 0x000000ff;
slouken@1895
   641
slouken@1895
   642
    if (!SDL_PublicSurface) {
slouken@1895
   643
        SDL_SetError("No video mode has been set");
slouken@1895
   644
        return NULL;
slouken@1895
   645
    }
slouken@1895
   646
    vf = SDL_PublicSurface->format;
slouken@1895
   647
slouken@1895
   648
    switch (vf->BytesPerPixel) {
slouken@1895
   649
    case 2:
slouken@1895
   650
        /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}.
slouken@1895
   651
           For anything else (like ARGB4444) it doesn't matter
slouken@1895
   652
           since we have no special code for it anyway */
slouken@1895
   653
        if ((vf->Rmask == 0x1f) &&
slouken@1895
   654
            (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) {
slouken@1895
   655
            rmask = 0xff;
slouken@1895
   656
            bmask = 0xff0000;
slouken@1895
   657
        }
slouken@1895
   658
        break;
slouken@1895
   659
slouken@1895
   660
    case 3:
slouken@1895
   661
    case 4:
slouken@1895
   662
        /* Keep the video format, as long as the high 8 bits are
slouken@1895
   663
           unused or alpha */
slouken@1895
   664
        if ((vf->Rmask == 0xff) && (vf->Bmask == 0xff0000)) {
slouken@1895
   665
            rmask = 0xff;
slouken@1895
   666
            bmask = 0xff0000;
slouken@1895
   667
        }
slouken@1895
   668
        break;
slouken@1895
   669
slouken@1895
   670
    default:
slouken@1895
   671
        /* We have no other optimised formats right now. When/if a new
slouken@1895
   672
           optimised alpha format is written, add the converter here */
slouken@1895
   673
        break;
slouken@1895
   674
    }
slouken@1895
   675
    format = SDL_AllocFormat(32, rmask, gmask, bmask, amask);
slouken@2267
   676
    converted = SDL_ConvertSurface(surface, format, 0);
slouken@2267
   677
    SDL_SetSurfaceRLE(converted, 1);
slouken@1895
   678
    SDL_FreeFormat(format);
slouken@1895
   679
    return converted;
slouken@1895
   680
}
slouken@1895
   681
slouken@1895
   682
int
slouken@1895
   683
SDL_Flip(SDL_Surface * screen)
slouken@1895
   684
{
slouken@1895
   685
    SDL_UpdateRect(screen, 0, 0, 0, 0);
slouken@1895
   686
    return 0;
slouken@1895
   687
}
slouken@1895
   688
slouken@1895
   689
void
slouken@1895
   690
SDL_UpdateRect(SDL_Surface * screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h)
slouken@1895
   691
{
slouken@1895
   692
    if (screen) {
slouken@1895
   693
        SDL_Rect rect;
slouken@1895
   694
slouken@1895
   695
        /* Fill the rectangle */
slouken@1897
   696
        rect.x = (int) x;
slouken@1897
   697
        rect.y = (int) y;
slouken@1897
   698
        rect.w = (int) (w ? w : screen->w);
slouken@1897
   699
        rect.h = (int) (h ? h : screen->h);
slouken@1895
   700
        SDL_UpdateRects(screen, 1, &rect);
slouken@1895
   701
    }
slouken@1895
   702
}
slouken@2735
   703
slouken@1895
   704
void
slouken@1895
   705
SDL_UpdateRects(SDL_Surface * screen, int numrects, SDL_Rect * rects)
slouken@1895
   706
{
slouken@1895
   707
    int i;
slouken@1895
   708
slouken@1895
   709
    if (screen == SDL_ShadowSurface) {
slouken@1895
   710
        for (i = 0; i < numrects; ++i) {
slouken@1895
   711
            SDL_LowerBlit(SDL_ShadowSurface, &rects[i], SDL_VideoSurface,
slouken@1895
   712
                          &rects[i]);
slouken@1895
   713
        }
slouken@1895
   714
slouken@1895
   715
        /* Fall through to video surface update */
slouken@1895
   716
        screen = SDL_VideoSurface;
slouken@1895
   717
    }
slouken@1895
   718
    if (screen == SDL_VideoSurface) {
slouken@2222
   719
        if (screen->flags & SDL_PREALLOC) {
slouken@2222
   720
            /* The surface memory is maintained by the renderer */
slouken@2222
   721
            SDL_DirtyTexture(SDL_VideoTexture, numrects, rects);
slouken@2222
   722
        } else {
slouken@2222
   723
            /* The surface memory needs to be copied to texture */
slouken@2222
   724
            int pitch = screen->pitch;
slouken@2222
   725
            int psize = screen->format->BytesPerPixel;
slouken@2222
   726
            for (i = 0; i < numrects; ++i) {
slouken@2222
   727
                const SDL_Rect *rect = &rects[i];
slouken@2222
   728
                void *pixels =
slouken@2222
   729
                    (Uint8 *) screen->pixels + rect->y * pitch +
slouken@2222
   730
                    rect->x * psize;
slouken@2222
   731
                SDL_UpdateTexture(SDL_VideoTexture, rect, pixels, pitch);
slouken@2222
   732
            }
slouken@2222
   733
        }
slouken@1965
   734
        if (SDL_VideoRendererInfo.flags & SDL_RENDERER_PRESENTCOPY) {
slouken@1907
   735
            for (i = 0; i < numrects; ++i) {
slouken@1985
   736
                SDL_RenderCopy(SDL_VideoTexture, &rects[i], &rects[i]);
slouken@1907
   737
            }
slouken@1907
   738
        } else {
slouken@1907
   739
            SDL_Rect rect;
slouken@1907
   740
            rect.x = 0;
slouken@1907
   741
            rect.y = 0;
slouken@1907
   742
            rect.w = screen->w;
slouken@1907
   743
            rect.h = screen->h;
slouken@1985
   744
            SDL_RenderCopy(SDL_VideoTexture, &rect, &rect);
slouken@1895
   745
        }
slouken@1895
   746
        SDL_RenderPresent();
slouken@1895
   747
    }
slouken@1895
   748
}
slouken@1895
   749
slouken@1895
   750
void
slouken@1895
   751
SDL_WM_SetCaption(const char *title, const char *icon)
slouken@1895
   752
{
slouken@1895
   753
    if (wm_title) {
slouken@1895
   754
        SDL_free(wm_title);
slouken@2037
   755
    }
slouken@2037
   756
    if (title) {
slouken@2037
   757
        wm_title = SDL_strdup(title);
slouken@1895
   758
    } else {
slouken@2037
   759
        wm_title = NULL;
slouken@1895
   760
    }
slouken@1895
   761
    SDL_SetWindowTitle(SDL_VideoWindow, wm_title);
slouken@1895
   762
}
slouken@1895
   763
slouken@1895
   764
void
slouken@2037
   765
SDL_WM_GetCaption(const char **title, const char **icon)
slouken@1895
   766
{
slouken@1895
   767
    if (title) {
slouken@1895
   768
        *title = wm_title;
slouken@1895
   769
    }
slouken@1895
   770
    if (icon) {
slouken@1895
   771
        *icon = "";
slouken@1895
   772
    }
slouken@1895
   773
}
slouken@1895
   774
slouken@1895
   775
void
slouken@1895
   776
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
slouken@1895
   777
{
slouken@1895
   778
    /* FIXME */
slouken@1895
   779
}
slouken@1895
   780
slouken@1895
   781
int
slouken@1895
   782
SDL_WM_IconifyWindow(void)
slouken@1895
   783
{
slouken@1895
   784
    SDL_MinimizeWindow(SDL_VideoWindow);
slouken@1895
   785
    return 0;
slouken@1895
   786
}
slouken@1895
   787
slouken@1895
   788
int
slouken@1895
   789
SDL_WM_ToggleFullScreen(SDL_Surface * surface)
slouken@1895
   790
{
slouken@1895
   791
    if (SDL_GetWindowFlags(SDL_VideoWindow) & SDL_WINDOW_FULLSCREEN) {
slouken@1895
   792
        if (SDL_SetWindowFullscreen(SDL_VideoWindow, 0) < 0) {
slouken@1895
   793
            return 0;
slouken@1895
   794
        }
slouken@1895
   795
        SDL_PublicSurface->flags &= ~SDL_FULLSCREEN;
slouken@1895
   796
    } else {
slouken@1895
   797
        if (SDL_SetWindowFullscreen(SDL_VideoWindow, 1) < 0) {
slouken@1895
   798
            return 0;
slouken@1895
   799
        }
slouken@1895
   800
        SDL_PublicSurface->flags |= SDL_FULLSCREEN;
slouken@1895
   801
    }
slouken@1895
   802
    return 1;
slouken@1895
   803
}
slouken@1895
   804
slouken@1895
   805
SDL_GrabMode
slouken@1895
   806
SDL_WM_GrabInput(SDL_GrabMode mode)
slouken@1895
   807
{
slouken@1895
   808
    if (mode != SDL_GRAB_QUERY) {
slouken@1895
   809
        SDL_SetWindowGrab(SDL_VideoWindow, mode);
slouken@1895
   810
    }
slouken@1895
   811
    return (SDL_GrabMode) SDL_GetWindowGrab(SDL_VideoWindow);
slouken@1895
   812
}
slouken@1895
   813
slouken@1895
   814
void
slouken@1895
   815
SDL_WarpMouse(Uint16 x, Uint16 y)
slouken@1895
   816
{
slouken@1895
   817
    SDL_WarpMouseInWindow(SDL_VideoWindow, x, y);
slouken@1895
   818
}
slouken@1895
   819
slouken@1895
   820
Uint8
slouken@1895
   821
SDL_GetAppState(void)
slouken@1895
   822
{
slouken@1895
   823
    Uint8 state = 0;
slouken@1895
   824
    Uint32 flags = 0;
slouken@1895
   825
slouken@1895
   826
    flags = SDL_GetWindowFlags(SDL_VideoWindow);
slouken@1895
   827
    if ((flags & SDL_WINDOW_SHOWN) && !(flags & SDL_WINDOW_MINIMIZED)) {
slouken@1895
   828
        state |= SDL_APPACTIVE;
slouken@1895
   829
    }
slouken@1895
   830
    if (flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@1895
   831
        state |= SDL_APPINPUTFOCUS;
slouken@1895
   832
    }
slouken@1895
   833
    if (flags & SDL_WINDOW_MOUSE_FOCUS) {
slouken@1895
   834
        state |= SDL_APPMOUSEFOCUS;
slouken@1895
   835
    }
slouken@1895
   836
    return state;
slouken@1895
   837
}
slouken@1895
   838
slouken@1895
   839
const SDL_version *
slouken@1895
   840
SDL_Linked_Version(void)
slouken@1895
   841
{
slouken@1895
   842
    static SDL_version version;
slouken@1895
   843
    SDL_VERSION(&version);
slouken@1895
   844
    return &version;
slouken@1895
   845
}
slouken@1895
   846
slouken@1895
   847
int
slouken@1895
   848
SDL_SetPalette(SDL_Surface * surface, int flags, const SDL_Color * colors,
slouken@1895
   849
               int firstcolor, int ncolors)
slouken@1895
   850
{
slouken@1895
   851
    return SDL_SetColors(surface, colors, firstcolor, ncolors);
slouken@1895
   852
}
slouken@1895
   853
slouken@1895
   854
int
slouken@1895
   855
SDL_SetColors(SDL_Surface * surface, const SDL_Color * colors, int firstcolor,
slouken@1895
   856
              int ncolors)
slouken@1895
   857
{
slouken@1895
   858
    if (SDL_SetPaletteColors
slouken@1895
   859
        (surface->format->palette, colors, firstcolor, ncolors) == 0) {
slouken@1895
   860
        return 1;
slouken@1895
   861
    } else {
slouken@1895
   862
        return 0;
slouken@1895
   863
    }
slouken@1895
   864
}
slouken@1895
   865
slouken@1895
   866
int
slouken@1895
   867
SDL_GetWMInfo(SDL_SysWMinfo * info)
slouken@1895
   868
{
slouken@1895
   869
    return SDL_GetWindowWMInfo(SDL_VideoWindow, info);
slouken@1895
   870
}
slouken@1895
   871
slouken@1895
   872
#if 0
slouken@1895
   873
void
slouken@1895
   874
SDL_MoveCursor(int x, int y)
slouken@1895
   875
{
slouken@1895
   876
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
   877
slouken@1895
   878
    /* Erase and update the current mouse position */
slouken@1895
   879
    if (SHOULD_DRAWCURSOR(SDL_cursorstate)) {
slouken@1895
   880
        /* Erase and redraw mouse cursor in new position */
slouken@1895
   881
        SDL_LockCursor();
slouken@1895
   882
        SDL_EraseCursor(SDL_VideoSurface);
slouken@1895
   883
        SDL_cursor->area.x = (x - SDL_cursor->hot_x);
slouken@1895
   884
        SDL_cursor->area.y = (y - SDL_cursor->hot_y);
slouken@1895
   885
        SDL_DrawCursor(SDL_VideoSurface);
slouken@1895
   886
        SDL_UnlockCursor();
slouken@1895
   887
    } else if (_this->MoveWMCursor) {
slouken@1895
   888
        _this->MoveWMCursor(_this, x, y);
slouken@1895
   889
    }
slouken@1895
   890
}
slouken@1895
   891
slouken@1895
   892
/* Keep track of the current cursor colors */
slouken@1895
   893
static int palette_changed = 1;
slouken@1895
   894
static Uint8 pixels8[2];
slouken@1895
   895
slouken@1895
   896
void
slouken@1895
   897
SDL_CursorPaletteChanged(void)
slouken@1895
   898
{
slouken@1895
   899
    palette_changed = 1;
slouken@1895
   900
}
slouken@1895
   901
slouken@1895
   902
void
slouken@1895
   903
SDL_MouseRect(SDL_Rect * area)
slouken@1895
   904
{
slouken@1895
   905
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
   906
    int clip_diff;
slouken@1895
   907
slouken@1895
   908
    *area = SDL_cursor->area;
slouken@1895
   909
    if (area->x < 0) {
slouken@1895
   910
        area->w += area->x;
slouken@1895
   911
        area->x = 0;
slouken@1895
   912
    }
slouken@1895
   913
    if (area->y < 0) {
slouken@1895
   914
        area->h += area->y;
slouken@1895
   915
        area->y = 0;
slouken@1895
   916
    }
slouken@1895
   917
    clip_diff = (area->x + area->w) - SDL_VideoSurface->w;
slouken@1895
   918
    if (clip_diff > 0) {
slouken@1895
   919
        area->w = area->w < clip_diff ? 0 : area->w - clip_diff;
slouken@1895
   920
    }
slouken@1895
   921
    clip_diff = (area->y + area->h) - SDL_VideoSurface->h;
slouken@1895
   922
    if (clip_diff > 0) {
slouken@1895
   923
        area->h = area->h < clip_diff ? 0 : area->h - clip_diff;
slouken@1895
   924
    }
slouken@1895
   925
}
slouken@1895
   926
slouken@1895
   927
static void
slouken@1895
   928
SDL_DrawCursorFast(SDL_Surface * screen, SDL_Rect * area)
slouken@1895
   929
{
slouken@1895
   930
    const Uint32 pixels[2] = { 0xFFFFFFFF, 0x00000000 };
slouken@1895
   931
    int i, w, h;
slouken@1895
   932
    Uint8 *data, datab;
slouken@1895
   933
    Uint8 *mask, maskb;
slouken@1895
   934
slouken@1895
   935
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
slouken@1895
   936
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
slouken@1895
   937
    switch (screen->format->BytesPerPixel) {
slouken@1895
   938
slouken@1895
   939
    case 1:
slouken@1895
   940
        {
slouken@1895
   941
            Uint8 *dst;
slouken@1895
   942
            int dstskip;
slouken@1895
   943
slouken@1895
   944
            if (palette_changed) {
slouken@1895
   945
                pixels8[0] =
slouken@1895
   946
                    (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
slouken@1895
   947
                pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
slouken@1895
   948
                palette_changed = 0;
slouken@1895
   949
            }
slouken@1895
   950
            dst = (Uint8 *) screen->pixels +
slouken@1895
   951
                (SDL_cursor->area.y + area->y) * screen->pitch +
slouken@1895
   952
                SDL_cursor->area.x;
slouken@1895
   953
            dstskip = screen->pitch - area->w;
slouken@1895
   954
slouken@1895
   955
            for (h = area->h; h; h--) {
slouken@1895
   956
                for (w = area->w / 8; w; w--) {
slouken@1895
   957
                    maskb = *mask++;
slouken@1895
   958
                    datab = *data++;
slouken@1895
   959
                    for (i = 0; i < 8; ++i) {
slouken@1895
   960
                        if (maskb & 0x80) {
slouken@1895
   961
                            *dst = pixels8[datab >> 7];
slouken@1895
   962
                        }
slouken@1895
   963
                        maskb <<= 1;
slouken@1895
   964
                        datab <<= 1;
slouken@1895
   965
                        dst++;
slouken@1895
   966
                    }
slouken@1895
   967
                }
slouken@1895
   968
                dst += dstskip;
slouken@1895
   969
            }
slouken@1895
   970
        }
slouken@1895
   971
        break;
slouken@1895
   972
slouken@1895
   973
    case 2:
slouken@1895
   974
        {
slouken@1895
   975
            Uint16 *dst;
slouken@1895
   976
            int dstskip;
slouken@1895
   977
slouken@1895
   978
            dst = (Uint16 *) screen->pixels +
slouken@1895
   979
                (SDL_cursor->area.y + area->y) * screen->pitch / 2 +
slouken@1895
   980
                SDL_cursor->area.x;
slouken@1895
   981
            dstskip = (screen->pitch / 2) - area->w;
slouken@1895
   982
slouken@1895
   983
            for (h = area->h; h; h--) {
slouken@1895
   984
                for (w = area->w / 8; w; w--) {
slouken@1895
   985
                    maskb = *mask++;
slouken@1895
   986
                    datab = *data++;
slouken@1895
   987
                    for (i = 0; i < 8; ++i) {
slouken@1895
   988
                        if (maskb & 0x80) {
slouken@1895
   989
                            *dst = (Uint16) pixels[datab >> 7];
slouken@1895
   990
                        }
slouken@1895
   991
                        maskb <<= 1;
slouken@1895
   992
                        datab <<= 1;
slouken@1895
   993
                        dst++;
slouken@1895
   994
                    }
slouken@1895
   995
                }
slouken@1895
   996
                dst += dstskip;
slouken@1895
   997
            }
slouken@1895
   998
        }
slouken@1895
   999
        break;
slouken@1895
  1000
slouken@1895
  1001
    case 3:
slouken@1895
  1002
        {
slouken@1895
  1003
            Uint8 *dst;
slouken@1895
  1004
            int dstskip;
slouken@1895
  1005
slouken@1895
  1006
            dst = (Uint8 *) screen->pixels +
slouken@1895
  1007
                (SDL_cursor->area.y + area->y) * screen->pitch +
slouken@1895
  1008
                SDL_cursor->area.x * 3;
slouken@1895
  1009
            dstskip = screen->pitch - area->w * 3;
slouken@1895
  1010
slouken@1895
  1011
            for (h = area->h; h; h--) {
slouken@1895
  1012
                for (w = area->w / 8; w; w--) {
slouken@1895
  1013
                    maskb = *mask++;
slouken@1895
  1014
                    datab = *data++;
slouken@1895
  1015
                    for (i = 0; i < 8; ++i) {
slouken@1895
  1016
                        if (maskb & 0x80) {
slouken@1895
  1017
                            SDL_memset(dst, pixels[datab >> 7], 3);
slouken@1895
  1018
                        }
slouken@1895
  1019
                        maskb <<= 1;
slouken@1895
  1020
                        datab <<= 1;
slouken@1895
  1021
                        dst += 3;
slouken@1895
  1022
                    }
slouken@1895
  1023
                }
slouken@1895
  1024
                dst += dstskip;
slouken@1895
  1025
            }
slouken@1895
  1026
        }
slouken@1895
  1027
        break;
slouken@1895
  1028
slouken@1895
  1029
    case 4:
slouken@1895
  1030
        {
slouken@1895
  1031
            Uint32 *dst;
slouken@1895
  1032
            int dstskip;
slouken@1895
  1033
slouken@1895
  1034
            dst = (Uint32 *) screen->pixels +
slouken@1895
  1035
                (SDL_cursor->area.y + area->y) * screen->pitch / 4 +
slouken@1895
  1036
                SDL_cursor->area.x;
slouken@1895
  1037
            dstskip = (screen->pitch / 4) - area->w;
slouken@1895
  1038
slouken@1895
  1039
            for (h = area->h; h; h--) {
slouken@1895
  1040
                for (w = area->w / 8; w; w--) {
slouken@1895
  1041
                    maskb = *mask++;
slouken@1895
  1042
                    datab = *data++;
slouken@1895
  1043
                    for (i = 0; i < 8; ++i) {
slouken@1895
  1044
                        if (maskb & 0x80) {
slouken@1895
  1045
                            *dst = pixels[datab >> 7];
slouken@1895
  1046
                        }
slouken@1895
  1047
                        maskb <<= 1;
slouken@1895
  1048
                        datab <<= 1;
slouken@1895
  1049
                        dst++;
slouken@1895
  1050
                    }
slouken@1895
  1051
                }
slouken@1895
  1052
                dst += dstskip;
slouken@1895
  1053
            }
slouken@1895
  1054
        }
slouken@1895
  1055
        break;
slouken@1895
  1056
    }
slouken@1895
  1057
}
slouken@1895
  1058
slouken@1895
  1059
static void
slouken@1895
  1060
SDL_DrawCursorSlow(SDL_Surface * screen, SDL_Rect * area)
slouken@1895
  1061
{
slouken@1895
  1062
    const Uint32 pixels[2] = { 0xFFFFFF, 0x000000 };
slouken@1895
  1063
    int h;
slouken@1895
  1064
    int x, minx, maxx;
slouken@1895
  1065
    Uint8 *data, datab = 0;
slouken@1895
  1066
    Uint8 *mask, maskb = 0;
slouken@1895
  1067
    Uint8 *dst;
slouken@1895
  1068
    int dstbpp, dstskip;
slouken@1895
  1069
slouken@1895
  1070
    data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8;
slouken@1895
  1071
    mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8;
slouken@1895
  1072
    dstbpp = screen->format->BytesPerPixel;
slouken@1895
  1073
    dst = (Uint8 *) screen->pixels +
slouken@1895
  1074
        (SDL_cursor->area.y + area->y) * screen->pitch +
slouken@1895
  1075
        SDL_cursor->area.x * dstbpp;
slouken@1895
  1076
    dstskip = screen->pitch - SDL_cursor->area.w * dstbpp;
slouken@1895
  1077
slouken@1895
  1078
    minx = area->x;
slouken@1895
  1079
    maxx = area->x + area->w;
slouken@1895
  1080
    if (screen->format->BytesPerPixel == 1) {
slouken@1895
  1081
        if (palette_changed) {
slouken@1895
  1082
            pixels8[0] = (Uint8) SDL_MapRGB(screen->format, 255, 255, 255);
slouken@1895
  1083
            pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0);
slouken@1895
  1084
            palette_changed = 0;
slouken@1895
  1085
        }
slouken@1895
  1086
        for (h = area->h; h; h--) {
slouken@1895
  1087
            for (x = 0; x < SDL_cursor->area.w; ++x) {
slouken@1895
  1088
                if ((x % 8) == 0) {
slouken@1895
  1089
                    maskb = *mask++;
slouken@1895
  1090
                    datab = *data++;
slouken@1895
  1091
                }
slouken@1895
  1092
                if ((x >= minx) && (x < maxx)) {
slouken@1895
  1093
                    if (maskb & 0x80) {
slouken@1895
  1094
                        SDL_memset(dst, pixels8[datab >> 7], dstbpp);
slouken@1895
  1095
                    }
slouken@1895
  1096
                }
slouken@1895
  1097
                maskb <<= 1;
slouken@1895
  1098
                datab <<= 1;
slouken@1895
  1099
                dst += dstbpp;
slouken@1895
  1100
            }
slouken@1895
  1101
            dst += dstskip;
slouken@1895
  1102
        }
slouken@1895
  1103
    } else {
slouken@1895
  1104
        for (h = area->h; h; h--) {
slouken@1895
  1105
            for (x = 0; x < SDL_cursor->area.w; ++x) {
slouken@1895
  1106
                if ((x % 8) == 0) {
slouken@1895
  1107
                    maskb = *mask++;
slouken@1895
  1108
                    datab = *data++;
slouken@1895
  1109
                }
slouken@1895
  1110
                if ((x >= minx) && (x < maxx)) {
slouken@1895
  1111
                    if (maskb & 0x80) {
slouken@1895
  1112
                        SDL_memset(dst, pixels[datab >> 7], dstbpp);
slouken@1895
  1113
                    }
slouken@1895
  1114
                }
slouken@1895
  1115
                maskb <<= 1;
slouken@1895
  1116
                datab <<= 1;
slouken@1895
  1117
                dst += dstbpp;
slouken@1895
  1118
            }
slouken@1895
  1119
            dst += dstskip;
slouken@1895
  1120
        }
slouken@1895
  1121
    }
slouken@1895
  1122
}
slouken@1895
  1123
slouken@1895
  1124
/* This handles the ugly work of converting the saved cursor background from
slouken@1895
  1125
   the pixel format of the shadow surface to that of the video surface.
slouken@1895
  1126
   This is only necessary when blitting from a shadow surface of a different
slouken@1895
  1127
   pixel format than the video surface, and using a software rendered cursor.
slouken@1895
  1128
*/
slouken@1895
  1129
static void
slouken@1895
  1130
SDL_ConvertCursorSave(SDL_Surface * screen, int w, int h)
slouken@1895
  1131
{
slouken@1895
  1132
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1133
    SDL_BlitInfo info;
slouken@1895
  1134
    SDL_loblit RunBlit;
slouken@1895
  1135
slouken@1895
  1136
    /* Make sure we can steal the blit mapping */
slouken@1895
  1137
    if (screen->map->dst != SDL_VideoSurface) {
slouken@1895
  1138
        return;
slouken@1895
  1139
    }
slouken@1895
  1140
slouken@1895
  1141
    /* Set up the blit information */
slouken@1895
  1142
    info.s_pixels = SDL_cursor->save[1];
slouken@1895
  1143
    info.s_width = w;
slouken@1895
  1144
    info.s_height = h;
slouken@1895
  1145
    info.s_skip = 0;
slouken@1895
  1146
    info.d_pixels = SDL_cursor->save[0];
slouken@1895
  1147
    info.d_width = w;
slouken@1895
  1148
    info.d_height = h;
slouken@1895
  1149
    info.d_skip = 0;
slouken@1895
  1150
    info.aux_data = screen->map->sw_data->aux_data;
slouken@1895
  1151
    info.src = screen->format;
slouken@1895
  1152
    info.table = screen->map->table;
slouken@1895
  1153
    info.dst = SDL_VideoSurface->format;
slouken@1895
  1154
    RunBlit = screen->map->sw_data->blit;
slouken@1895
  1155
slouken@1895
  1156
    /* Run the actual software blit */
slouken@1895
  1157
    RunBlit(&info);
slouken@1895
  1158
}
slouken@1895
  1159
slouken@1895
  1160
void
slouken@1895
  1161
SDL_DrawCursorNoLock(SDL_Surface * screen)
slouken@1895
  1162
{
slouken@1895
  1163
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1164
    SDL_Rect area;
slouken@1895
  1165
slouken@1895
  1166
    /* Get the mouse rectangle, clipped to the screen */
slouken@1895
  1167
    SDL_MouseRect(&area);
slouken@1895
  1168
    if ((area.w == 0) || (area.h == 0)) {
slouken@1895
  1169
        return;
slouken@1895
  1170
    }
slouken@1895
  1171
slouken@1895
  1172
    /* Copy mouse background */
slouken@1895
  1173
    {
slouken@1895
  1174
        int w, h, screenbpp;
slouken@1895
  1175
        Uint8 *src, *dst;
slouken@1895
  1176
slouken@1895
  1177
        /* Set up the copy pointers */
slouken@1895
  1178
        screenbpp = screen->format->BytesPerPixel;
slouken@1895
  1179
        if ((screen == SDL_VideoSurface) ||
slouken@1895
  1180
            FORMAT_EQUAL(screen->format, SDL_VideoSurface->format)) {
slouken@1895
  1181
            dst = SDL_cursor->save[0];
slouken@1895
  1182
        } else {
slouken@1895
  1183
            dst = SDL_cursor->save[1];
slouken@1895
  1184
        }
slouken@1895
  1185
        src = (Uint8 *) screen->pixels + area.y * screen->pitch +
slouken@1895
  1186
            area.x * screenbpp;
slouken@1895
  1187
slouken@1895
  1188
        /* Perform the copy */
slouken@1895
  1189
        w = area.w * screenbpp;
slouken@1895
  1190
        h = area.h;
slouken@1895
  1191
        while (h--) {
slouken@1895
  1192
            SDL_memcpy(dst, src, w);
slouken@1895
  1193
            dst += w;
slouken@1895
  1194
            src += screen->pitch;
slouken@1895
  1195
        }
slouken@1895
  1196
    }
slouken@1895
  1197
slouken@1895
  1198
    /* Draw the mouse cursor */
slouken@1895
  1199
    area.x -= SDL_cursor->area.x;
slouken@1895
  1200
    area.y -= SDL_cursor->area.y;
slouken@1895
  1201
    if ((area.x == 0) && (area.w == SDL_cursor->area.w)) {
slouken@1895
  1202
        SDL_DrawCursorFast(screen, &area);
slouken@1895
  1203
    } else {
slouken@1895
  1204
        SDL_DrawCursorSlow(screen, &area);
slouken@1895
  1205
    }
slouken@1895
  1206
}
slouken@1895
  1207
slouken@1895
  1208
void
slouken@1895
  1209
SDL_DrawCursor(SDL_Surface * screen)
slouken@1895
  1210
{
slouken@1895
  1211
    /* Lock the screen if necessary */
slouken@1895
  1212
    if (screen == NULL) {
slouken@1895
  1213
        return;
slouken@1895
  1214
    }
slouken@1895
  1215
    if (SDL_MUSTLOCK(screen)) {
slouken@1895
  1216
        if (SDL_LockSurface(screen) < 0) {
slouken@1895
  1217
            return;
slouken@1895
  1218
        }
slouken@1895
  1219
    }
slouken@1895
  1220
slouken@1895
  1221
    SDL_DrawCursorNoLock(screen);
slouken@1895
  1222
slouken@1895
  1223
    /* Unlock the screen and update if necessary */
slouken@1895
  1224
    if (SDL_MUSTLOCK(screen)) {
slouken@1895
  1225
        SDL_UnlockSurface(screen);
slouken@1895
  1226
    }
slouken@2222
  1227
    if (screen->flags & SDL_SCREEN_SURFACE) {
slouken@1895
  1228
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1229
        SDL_Window *window;
slouken@1895
  1230
        SDL_Rect area;
slouken@1895
  1231
slouken@1895
  1232
        window = SDL_GetWindowFromSurface(screen);
slouken@1895
  1233
        if (!window) {
slouken@1895
  1234
            return;
slouken@1895
  1235
        }
slouken@1895
  1236
slouken@1895
  1237
        SDL_MouseRect(&area);
slouken@1895
  1238
slouken@1895
  1239
        if (_this->UpdateWindowSurface) {
slouken@1895
  1240
            _this->UpdateWindowSurface(_this, window, 1, &area);
slouken@1895
  1241
        }
slouken@1895
  1242
    }
slouken@1895
  1243
}
slouken@1895
  1244
slouken@1895
  1245
void
slouken@1895
  1246
SDL_EraseCursorNoLock(SDL_Surface * screen)
slouken@1895
  1247
{
slouken@1895
  1248
    SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1249
    SDL_Window *window;
slouken@1895
  1250
    SDL_Rect area;
slouken@1895
  1251
slouken@1895
  1252
    /* Get the window associated with the surface */
slouken@1895
  1253
    window = SDL_GetWindowFromSurface(screen);
slouken@1895
  1254
    if (!window || !window->surface) {
slouken@1895
  1255
        return;
slouken@1895
  1256
    }
slouken@1895
  1257
slouken@1895
  1258
    /* Get the mouse rectangle, clipped to the screen */
slouken@1895
  1259
    SDL_MouseRect(&area);
slouken@1895
  1260
    if ((area.w == 0) || (area.h == 0)) {
slouken@1895
  1261
        return;
slouken@1895
  1262
    }
slouken@1895
  1263
slouken@1895
  1264
    /* Copy mouse background */
slouken@1895
  1265
    {
slouken@1895
  1266
        int w, h, screenbpp;
slouken@1895
  1267
        Uint8 *src, *dst;
slouken@1895
  1268
slouken@1895
  1269
        /* Set up the copy pointers */
slouken@1895
  1270
        screenbpp = screen->format->BytesPerPixel;
slouken@1895
  1271
        if ((screen->flags & SDL_SCREEN_SURFACE) ||
slouken@1895
  1272
            FORMAT_EQUAL(screen->format, window->surface->format)) {
slouken@1895
  1273
            src = SDL_cursor->save[0];
slouken@1895
  1274
        } else {
slouken@1895
  1275
            src = SDL_cursor->save[1];
slouken@1895
  1276
        }
slouken@1895
  1277
        dst = (Uint8 *) screen->pixels + area.y * screen->pitch +
slouken@1895
  1278
            area.x * screenbpp;
slouken@1895
  1279
slouken@1895
  1280
        /* Perform the copy */
slouken@1895
  1281
        w = area.w * screenbpp;
slouken@1895
  1282
        h = area.h;
slouken@1895
  1283
        while (h--) {
slouken@1895
  1284
            SDL_memcpy(dst, src, w);
slouken@1895
  1285
            src += w;
slouken@1895
  1286
            dst += screen->pitch;
slouken@1895
  1287
        }
slouken@1895
  1288
slouken@1895
  1289
        /* Perform pixel conversion on cursor background */
slouken@1895
  1290
        if (src > SDL_cursor->save[1]) {
slouken@1895
  1291
            SDL_ConvertCursorSave(screen, area.w, area.h);
slouken@1895
  1292
        }
slouken@1895
  1293
    }
slouken@1895
  1294
}
slouken@1895
  1295
slouken@1895
  1296
void
slouken@1895
  1297
SDL_EraseCursor(SDL_Surface * screen)
slouken@1895
  1298
{
slouken@1895
  1299
    /* Lock the screen if necessary */
slouken@1895
  1300
    if (screen == NULL) {
slouken@1895
  1301
        return;
slouken@1895
  1302
    }
slouken@1895
  1303
    if (SDL_MUSTLOCK(screen)) {
slouken@1895
  1304
        if (SDL_LockSurface(screen) < 0) {
slouken@1895
  1305
            return;
slouken@1895
  1306
        }
slouken@1895
  1307
    }
slouken@1895
  1308
slouken@1895
  1309
    SDL_EraseCursorNoLock(screen);
slouken@1895
  1310
slouken@1895
  1311
    /* Unlock the screen and update if necessary */
slouken@1895
  1312
    if (SDL_MUSTLOCK(screen)) {
slouken@1895
  1313
        SDL_UnlockSurface(screen);
slouken@1895
  1314
    }
slouken@2222
  1315
    if (screen->flags & SDL_SCREEN_SURFACE) {
slouken@1895
  1316
        SDL_VideoDevice *_this = SDL_GetVideoDevice();
slouken@1895
  1317
        SDL_Window *window;
slouken@1895
  1318
        SDL_Rect area;
slouken@1895
  1319
slouken@1895
  1320
        window = SDL_GetWindowFromSurface(screen);
slouken@1895
  1321
        if (!window) {
slouken@1895
  1322
            return;
slouken@1895
  1323
        }
slouken@1895
  1324
slouken@1895
  1325
        SDL_MouseRect(&area);
slouken@1895
  1326
slouken@1895
  1327
        if (_this->UpdateWindowSurface) {
slouken@1895
  1328
            _this->UpdateWindowSurface(_this, window, 1, &area);
slouken@1895
  1329
        }
slouken@1895
  1330
    }
slouken@1895
  1331
}
slouken@1895
  1332
slouken@1895
  1333
/* Reset the cursor on video mode change
slouken@1895
  1334
   FIXME:  Keep track of all cursors, and reset them all.
slouken@1895
  1335
 */
slouken@1895
  1336
void
slouken@1895
  1337
SDL_ResetCursor(void)
slouken@1895
  1338
{
slouken@1895
  1339
    int savelen;
slouken@1895
  1340
slouken@1895
  1341
    if (SDL_cursor) {
slouken@1895
  1342
        savelen = SDL_cursor->area.w * 4 * SDL_cursor->area.h;
slouken@1895
  1343
        SDL_cursor->area.x = 0;
slouken@1895
  1344
        SDL_cursor->area.y = 0;
slouken@1895
  1345
        SDL_memset(SDL_cursor->save[0], 0, savelen);
slouken@1895
  1346
    }
slouken@1895
  1347
}
slouken@1895
  1348
#endif
slouken@1895
  1349
slouken@1895
  1350
struct private_yuvhwdata
slouken@1895
  1351
{
slouken@1895
  1352
    Uint16 pitches[3];
slouken@1895
  1353
    Uint8 *planes[3];
slouken@1895
  1354
slouken@2786
  1355
    SDL_SW_YUVTexture *sw;
slouken@2781
  1356
slouken@1895
  1357
    SDL_TextureID textureID;
slouken@2803
  1358
    Uint32 texture_format;
slouken@1895
  1359
};
slouken@1895
  1360
slouken@1895
  1361
SDL_Overlay *
slouken@1895
  1362
SDL_CreateYUVOverlay(int w, int h, Uint32 format, SDL_Surface * display)
slouken@1895
  1363
{
slouken@1895
  1364
    SDL_Overlay *overlay;
slouken@1895
  1365
    Uint32 texture_format;
slouken@1895
  1366
slouken@1895
  1367
    if ((display->flags & SDL_OPENGL) == SDL_OPENGL) {
slouken@1895
  1368
        SDL_SetError("YUV overlays are not supported in OpenGL mode");
slouken@1895
  1369
        return NULL;
slouken@1895
  1370
    }
slouken@1895
  1371
slouken@1895
  1372
    if (display != SDL_PublicSurface) {
slouken@1895
  1373
        SDL_SetError("YUV display is only supported on the screen surface");
slouken@1895
  1374
        return NULL;
slouken@1895
  1375
    }
slouken@1895
  1376
slouken@1895
  1377
    switch (format) {
slouken@1895
  1378
    case SDL_YV12_OVERLAY:
slouken@1965
  1379
        texture_format = SDL_PIXELFORMAT_YV12;
slouken@1895
  1380
        break;
slouken@1895
  1381
    case SDL_IYUV_OVERLAY:
slouken@1965
  1382
        texture_format = SDL_PIXELFORMAT_IYUV;
slouken@1895
  1383
        break;
slouken@1895
  1384
    case SDL_YUY2_OVERLAY:
slouken@1965
  1385
        texture_format = SDL_PIXELFORMAT_YUY2;
slouken@1895
  1386
        break;
slouken@1895
  1387
    case SDL_UYVY_OVERLAY:
slouken@1965
  1388
        texture_format = SDL_PIXELFORMAT_UYVY;
slouken@1895
  1389
        break;
slouken@1895
  1390
    case SDL_YVYU_OVERLAY:
slouken@1965
  1391
        texture_format = SDL_PIXELFORMAT_YVYU;
slouken@1895
  1392
        break;
slouken@1895
  1393
    default:
slouken@1895
  1394
        SDL_SetError("Unknown YUV format");
slouken@1895
  1395
        return NULL;
slouken@1895
  1396
    }
slouken@1895
  1397
slouken@1895
  1398
    overlay = (SDL_Overlay *) SDL_malloc(sizeof(*overlay));
slouken@1895
  1399
    if (!overlay) {
slouken@1895
  1400
        SDL_OutOfMemory();
slouken@1895
  1401
        return NULL;
slouken@1895
  1402
    }
slouken@1895
  1403
    SDL_zerop(overlay);
slouken@1895
  1404
slouken@1895
  1405
    overlay->hwdata =
slouken@1895
  1406
        (struct private_yuvhwdata *) SDL_malloc(sizeof(*overlay->hwdata));
slouken@1895
  1407
    if (!overlay->hwdata) {
slouken@1895
  1408
        SDL_free(overlay);
slouken@1895
  1409
        SDL_OutOfMemory();
slouken@1895
  1410
        return NULL;
slouken@1895
  1411
    }
slouken@1895
  1412
slouken@1895
  1413
    overlay->format = format;
slouken@1895
  1414
    overlay->w = w;
slouken@1895
  1415
    overlay->h = h;
slouken@1895
  1416
    if (format == SDL_YV12_OVERLAY || format == SDL_IYUV_OVERLAY) {
slouken@1895
  1417
        overlay->planes = 3;
slouken@1895
  1418
    } else {
slouken@1895
  1419
        overlay->planes = 1;
slouken@1895
  1420
    }
slouken@1895
  1421
    overlay->pitches = overlay->hwdata->pitches;
slouken@1895
  1422
    overlay->pixels = overlay->hwdata->planes;
slouken@1895
  1423
slouken@1895
  1424
    switch (format) {
slouken@1895
  1425
    case SDL_YV12_OVERLAY:
slouken@1895
  1426
    case SDL_IYUV_OVERLAY:
slouken@1895
  1427
        overlay->pitches[0] = overlay->w;
slouken@1895
  1428
        overlay->pitches[1] = overlay->w / 2;
slouken@1895
  1429
        overlay->pitches[2] = overlay->w / 2;
slouken@1895
  1430
        break;
slouken@1895
  1431
    case SDL_YUY2_OVERLAY:
slouken@1895
  1432
    case SDL_UYVY_OVERLAY:
slouken@1895
  1433
    case SDL_YVYU_OVERLAY:
slouken@1895
  1434
        overlay->pitches[0] = overlay->w * 2;
slouken@1895
  1435
        break;
slouken@1895
  1436
    }
slouken@1895
  1437
slouken@1895
  1438
    overlay->hwdata->textureID =
slouken@2222
  1439
        SDL_CreateTexture(texture_format, SDL_TEXTUREACCESS_STREAMING, w, h);
slouken@2781
  1440
    if (overlay->hwdata->textureID) {
slouken@2786
  1441
        overlay->hwdata->sw = NULL;
slouken@2786
  1442
    } else {
slouken@2796
  1443
        SDL_DisplayMode current_mode;
slouken@2796
  1444
slouken@2786
  1445
        overlay->hwdata->sw = SDL_SW_CreateYUVTexture(texture_format, w, h);
slouken@2786
  1446
        if (!overlay->hwdata->sw) {
slouken@2786
  1447
            SDL_FreeYUVOverlay(overlay);
slouken@2786
  1448
            return NULL;
slouken@2786
  1449
        }
slouken@2781
  1450
slouken@2786
  1451
        /* Create a supported RGB format texture for display */
slouken@2796
  1452
        SDL_GetCurrentDisplayMode(&current_mode);
slouken@2803
  1453
        texture_format = current_mode.format;
slouken@2786
  1454
        overlay->hwdata->textureID =
slouken@2803
  1455
            SDL_CreateTexture(texture_format,
slouken@2786
  1456
                              SDL_TEXTUREACCESS_STREAMING, w, h);
slouken@2786
  1457
    }
slouken@2786
  1458
    if (!overlay->hwdata->textureID) {
slouken@1895
  1459
        SDL_FreeYUVOverlay(overlay);
slouken@1895
  1460
        return NULL;
slouken@1895
  1461
    }
slouken@2803
  1462
    overlay->hwdata->texture_format = texture_format;
slouken@1895
  1463
slouken@1895
  1464
    return overlay;
slouken@1895
  1465
}
slouken@1895
  1466
slouken@1895
  1467
int
slouken@1895
  1468
SDL_LockYUVOverlay(SDL_Overlay * overlay)
slouken@1895
  1469
{
slouken@1895
  1470
    void *pixels;
slouken@1895
  1471
    int pitch;
slouken@2202
  1472
slouken@2202
  1473
    if (!overlay) {
slouken@2202
  1474
        SDL_SetError("Passed a NULL overlay");
slouken@2202
  1475
        return -1;
slouken@2202
  1476
    }
slouken@2786
  1477
    if (overlay->hwdata->sw) {
slouken@2786
  1478
        if (SDL_SW_QueryYUVTexturePixels(overlay->hwdata->sw, &pixels, &pitch)
slouken@2786
  1479
            < 0) {
slouken@2786
  1480
            return -1;
slouken@2786
  1481
        }
slouken@2786
  1482
    } else {
slouken@2786
  1483
        if (SDL_LockTexture
slouken@2786
  1484
            (overlay->hwdata->textureID, NULL, 1, &pixels, &pitch)
slouken@2786
  1485
            < 0) {
slouken@2786
  1486
            return -1;
slouken@2786
  1487
        }
slouken@2786
  1488
    }
slouken@2226
  1489
    overlay->pixels[0] = (Uint8 *) pixels;
slouken@2226
  1490
    overlay->pitches[0] = pitch;
slouken@1895
  1491
    switch (overlay->format) {
slouken@1895
  1492
    case SDL_YV12_OVERLAY:
slouken@1895
  1493
    case SDL_IYUV_OVERLAY:
slouken@2226
  1494
        overlay->pitches[1] = pitch / 2;
slouken@2226
  1495
        overlay->pitches[2] = pitch / 2;
slouken@1895
  1496
        overlay->pixels[1] =
slouken@1895
  1497
            overlay->pixels[0] + overlay->pitches[0] * overlay->h;
slouken@1895
  1498
        overlay->pixels[2] =
slouken@2226
  1499
            overlay->pixels[1] + overlay->pitches[1] * overlay->h / 2;
slouken@1895
  1500
        break;
slouken@1895
  1501
    case SDL_YUY2_OVERLAY:
slouken@1895
  1502
    case SDL_UYVY_OVERLAY:
slouken@1895
  1503
    case SDL_YVYU_OVERLAY:
slouken@1895
  1504
        break;
slouken@1895
  1505
    }
slouken@1895
  1506
    return 0;
slouken@1895
  1507
}
slouken@1895
  1508
slouken@1895
  1509
void
slouken@1895
  1510
SDL_UnlockYUVOverlay(SDL_Overlay * overlay)
slouken@1895
  1511
{
slouken@2202
  1512
    if (!overlay) {
slouken@2202
  1513
        return;
slouken@2202
  1514
    }
slouken@2786
  1515
    if (overlay->hwdata->sw) {
slouken@2786
  1516
        void *pixels;
slouken@2786
  1517
        int pitch;
slouken@2786
  1518
        if (SDL_LockTexture
slouken@2786
  1519
            (overlay->hwdata->textureID, NULL, 1, &pixels, &pitch) == 0) {
slouken@2786
  1520
            SDL_Rect srcrect;
slouken@2781
  1521
slouken@2786
  1522
            srcrect.x = 0;
slouken@2786
  1523
            srcrect.y = 0;
slouken@2786
  1524
            srcrect.w = overlay->w;
slouken@2786
  1525
            srcrect.h = overlay->h;
slouken@2786
  1526
            SDL_SW_CopyYUVToRGB(overlay->hwdata->sw, &srcrect,
slouken@2803
  1527
                                overlay->hwdata->texture_format,
slouken@2803
  1528
                                overlay->w, overlay->h, pixels, pitch);
slouken@2786
  1529
            SDL_UnlockTexture(overlay->hwdata->textureID);
slouken@2786
  1530
        }
slouken@2786
  1531
    } else {
slouken@2786
  1532
        SDL_UnlockTexture(overlay->hwdata->textureID);
slouken@2786
  1533
    }
slouken@1895
  1534
}
slouken@1895
  1535
slouken@1895
  1536
int
slouken@1895
  1537
SDL_DisplayYUVOverlay(SDL_Overlay * overlay, SDL_Rect * dstrect)
slouken@1895
  1538
{
slouken@2202
  1539
    if (!overlay || !dstrect) {
slouken@2202
  1540
        SDL_SetError("Passed a NULL overlay or dstrect");
slouken@2202
  1541
        return -1;
slouken@2202
  1542
    }
slouken@1985
  1543
    if (SDL_RenderCopy(overlay->hwdata->textureID, NULL, dstrect) < 0) {
slouken@1895
  1544
        return -1;
slouken@1895
  1545
    }
slouken@1895
  1546
    SDL_RenderPresent();
slouken@1895
  1547
    return 0;
slouken@1895
  1548
}
slouken@1895
  1549
slouken@1895
  1550
void
slouken@1895
  1551
SDL_FreeYUVOverlay(SDL_Overlay * overlay)
slouken@1895
  1552
{
slouken@2202
  1553
    if (!overlay) {
slouken@2202
  1554
        return;
slouken@2202
  1555
    }
slouken@2202
  1556
    if (overlay->hwdata) {
slouken@2202
  1557
        if (overlay->hwdata->textureID) {
slouken@2202
  1558
            SDL_DestroyTexture(overlay->hwdata->textureID);
slouken@1895
  1559
        }
slouken@2202
  1560
        SDL_free(overlay->hwdata);
slouken@1895
  1561
    }
slouken@2202
  1562
    SDL_free(overlay);
slouken@1895
  1563
}
slouken@1895
  1564
slouken@1912
  1565
void
slouken@1912
  1566
SDL_GL_SwapBuffers(void)
slouken@1912
  1567
{
slouken@1912
  1568
    SDL_GL_SwapWindow(SDL_VideoWindow);
slouken@1912
  1569
}
slouken@1912
  1570
slouken@2129
  1571
slouken@2129
  1572
int
slouken@2129
  1573
SDL_EnableKeyRepeat(int delay, int interval)
slouken@2129
  1574
{
slouken@2129
  1575
    return 0;
slouken@2129
  1576
}
slouken@2129
  1577
slouken@2129
  1578
void
slouken@2129
  1579
SDL_GetKeyRepeat(int *delay, int *interval)
slouken@2129
  1580
{
slouken@2129
  1581
    if (delay) {
slouken@2129
  1582
        *delay = SDL_DEFAULT_REPEAT_DELAY;
slouken@2129
  1583
    }
slouken@2129
  1584
    if (interval) {
slouken@2129
  1585
        *interval = SDL_DEFAULT_REPEAT_INTERVAL;
slouken@2129
  1586
    }
slouken@2129
  1587
}
slouken@2129
  1588
slouken@2303
  1589
int
slouken@2303
  1590
SDL_EnableUNICODE(int enable)
slouken@2303
  1591
{
slouken@2303
  1592
    return SDL_EventState(SDL_TEXTINPUT, enable);
slouken@2303
  1593
}
slouken@2303
  1594
slouken@1895
  1595
/* vi: set ts=4 sw=4 expandtab: */