src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Sat, 29 Jul 2006 21:51:00 +0000
changeset 1956 ba0d62354872
parent 1952 420716272158
child 1963 2590b68531ef
permissions -rw-r--r--
Simplified driver window creation code.
Implemented several Cocoa window functions
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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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/* The high-level video driver subsystem */
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#include "SDL.h"
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#include "SDL_sysvideo.h"
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#include "SDL_blit.h"
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#include "SDL_pixels_c.h"
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#include "SDL_renderer_gl.h"
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#include "SDL_renderer_sw.h"
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#include "../events/SDL_sysevents.h"
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#include "../events/SDL_events_c.h"
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#if SDL_VIDEO_OPENGL
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#include "SDL_opengl.h"
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/* On Windows, windows.h defines CreateWindow */
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#ifdef CreateWindow
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#undef CreateWindow
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#endif
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#endif /* SDL_VIDEO_OPENGL */
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/* Available video drivers */
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static VideoBootStrap *bootstrap[] = {
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#if SDL_VIDEO_DRIVER_COCOA
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    &COCOA_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_X11
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    &X11_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_NANOX
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    &NX_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_IPOD
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    &iPod_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_QTOPIA
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    &Qtopia_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_WSCONS
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    &WSCONS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_FBCON
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    &FBCON_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DIRECTFB
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    &DirectFB_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_PS2GS
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    &PS2GS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_GGI
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    &GGI_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_VGL
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    &VGL_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_SVGALIB
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    &SVGALIB_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_GAPI
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    &GAPI_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_WIN32
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    &WIN32_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_BWINDOW
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    &BWINDOW_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_TOOLBOX
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    &TOOLBOX_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DRAWSPROCKET
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    &DSp_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_CYBERGRAPHICS
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    &CGX_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_PHOTON
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    &ph_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_EPOC
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    &EPOC_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_XBIOS
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    &XBIOS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_GEM
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    &GEM_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DC
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    &DC_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_RISCOS
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    &RISCOS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_OS2FS
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    &OS2FSLib_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DUMMY
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    &DUMMY_bootstrap,
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#endif
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    NULL
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};
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static SDL_VideoDevice *_this = NULL;
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/* Various local functions */
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int SDL_VideoInit(const char *driver_name, Uint32 flags);
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void SDL_VideoQuit(void);
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static int
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cmpmodes(const void *A, const void *B)
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{
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    SDL_DisplayMode a = *(const SDL_DisplayMode *) A;
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    SDL_DisplayMode b = *(const SDL_DisplayMode *) B;
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    if (a.w != b.w) {
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        return b.w - a.w;
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    }
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    if (a.h != b.h) {
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        return b.h - a.h;
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    }
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    if (SDL_BITSPERPIXEL(a.format) != SDL_BITSPERPIXEL(b.format)) {
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        return SDL_BITSPERPIXEL(b.format) - SDL_BITSPERPIXEL(a.format);
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    }
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    if (a.refresh_rate != b.refresh_rate) {
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        return b.refresh_rate - a.refresh_rate;
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    }
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    return 0;
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}
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static void
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SDL_UninitializedVideo()
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{
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    SDL_SetError("Video subsystem has not been initialized");
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}
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int
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SDL_GetNumVideoDrivers(void)
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{
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    return SDL_arraysize(bootstrap) - 1;
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}
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const char *
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SDL_GetVideoDriver(int index)
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{
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    if (index >= 0 && index < SDL_GetNumVideoDrivers()) {
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        return bootstrap[index]->name;
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    }
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    return NULL;
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}
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/*
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 * Initialize the video and event subsystems -- determine native pixel format
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 */
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int
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SDL_VideoInit(const char *driver_name, Uint32 flags)
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{
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    SDL_VideoDevice *video;
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    int index;
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    int i;
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    /* Toggle the event thread flags, based on OS requirements */
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#if defined(MUST_THREAD_EVENTS)
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    flags |= SDL_INIT_EVENTTHREAD;
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#elif defined(CANT_THREAD_EVENTS)
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    if ((flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD) {
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        SDL_SetError("OS doesn't support threaded events");
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        return -1;
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    }
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#endif
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    /* Start the event loop */
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    if (SDL_StartEventLoop(flags) < 0) {
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        return -1;
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    }
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    /* Check to make sure we don't overwrite '_this' */
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    if (_this != NULL) {
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        SDL_VideoQuit();
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    }
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    /* Select the proper video driver */
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    index = 0;
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    video = NULL;
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    if (driver_name == NULL) {
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        driver_name = SDL_getenv("SDL_VIDEODRIVER");
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    }
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    if (driver_name != NULL) {
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        for (i = 0; bootstrap[i]; ++i) {
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            if (SDL_strncmp(bootstrap[i]->name, driver_name,
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                            SDL_strlen(bootstrap[i]->name)) == 0) {
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                if (bootstrap[i]->available()) {
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                    video = bootstrap[i]->create(index);
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                }
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                break;
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            }
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        }
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    } else {
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        for (i = 0; bootstrap[i]; ++i) {
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            if (bootstrap[i]->available()) {
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                video = bootstrap[i]->create(index);
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                if (video != NULL) {
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                    break;
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                }
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            }
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        }
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    }
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    if (video == NULL) {
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        if (driver_name) {
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            SDL_SetError("%s not available", driver_name);
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        } else {
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            SDL_SetError("No available video device");
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        }
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        return -1;
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    }
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    _this = video;
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    _this->name = bootstrap[i]->name;
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    _this->next_object_id = 1;
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    /* Set some very sane GL defaults */
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    _this->gl_config.driver_loaded = 0;
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    _this->gl_config.dll_handle = NULL;
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    _this->gl_config.red_size = 3;
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    _this->gl_config.green_size = 3;
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    _this->gl_config.blue_size = 2;
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    _this->gl_config.alpha_size = 0;
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    _this->gl_config.buffer_size = 0;
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    _this->gl_config.depth_size = 16;
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    _this->gl_config.stencil_size = 0;
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    _this->gl_config.double_buffer = 1;
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    _this->gl_config.accum_red_size = 0;
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    _this->gl_config.accum_green_size = 0;
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    _this->gl_config.accum_blue_size = 0;
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    _this->gl_config.accum_alpha_size = 0;
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    _this->gl_config.stereo = 0;
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    _this->gl_config.multisamplebuffers = 0;
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    _this->gl_config.multisamplesamples = 0;
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    _this->gl_config.accelerated = -1;  /* not known, don't set */
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    /* Initialize the video subsystem */
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    if (_this->VideoInit(_this) < 0) {
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        SDL_VideoQuit();
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        return -1;
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    }
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    /* Make sure some displays were added */
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    if (_this->num_displays == 0) {
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        SDL_SetError("The video driver did not add any displays");
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        SDL_VideoQuit();
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        return (-1);
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    }
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    /* The software renderer is always available */
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    for (i = 0; i < _this->num_displays; ++i) {
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#if SDL_VIDEO_RENDER_OGL
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        SDL_AddRenderDriver(i, &GL_RenderDriver);
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#endif
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        if (_this->displays[i].num_render_drivers > 0) {
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            SDL_AddRenderDriver(i, &SW_RenderDriver);
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        }
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    }
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    /* We're ready to go! */
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    return 0;
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}
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const char *
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SDL_GetCurrentVideoDriver()
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{
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    if (!_this) {
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        SDL_UninitializedVideo();
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        return NULL;
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    }
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    return _this->name;
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}
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SDL_VideoDevice *
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SDL_GetVideoDevice()
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{
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    return _this;
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}
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int
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SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode)
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{
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    SDL_VideoDisplay display;
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    SDL_zero(display);
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    if (desktop_mode) {
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        display.desktop_mode = *desktop_mode;
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    }
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    display.current_mode = display.desktop_mode;
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    return SDL_AddVideoDisplay(&display);
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}
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int
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SDL_AddVideoDisplay(const SDL_VideoDisplay * display)
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{
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    SDL_VideoDisplay *displays;
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    int index = -1;
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    displays =
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        SDL_realloc(_this->displays,
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                    (_this->num_displays + 1) * sizeof(*displays));
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    if (displays) {
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        index = _this->num_displays++;
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        displays[index] = *display;
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        displays[index].device = _this;
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        _this->displays = displays;
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    } else {
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        SDL_OutOfMemory();
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    }
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    return index;
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}
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int
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SDL_GetNumVideoDisplays(void)
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{
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    if (!_this) {
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        SDL_UninitializedVideo();
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        return 0;
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    }
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    return _this->num_displays;
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}
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int
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SDL_SelectVideoDisplay(int index)
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{
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    if (!_this) {
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        SDL_UninitializedVideo();
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        return (-1);
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    }
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    if (index >= 0) {
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        if (index >= _this->num_displays) {
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            SDL_SetError("index must be in the range 0 - %d",
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                         _this->num_displays - 1);
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            return -1;
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        }
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        _this->current_display = index;
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    }
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    return _this->current_display;
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}
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SDL_bool
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SDL_AddDisplayMode(int displayIndex, const SDL_DisplayMode * mode)
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{
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    SDL_VideoDisplay *display = &_this->displays[displayIndex];
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    SDL_DisplayMode *modes;
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    int i, nmodes;
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    /* Make sure we don't already have the mode in the list */
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    modes = display->display_modes;
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    nmodes = display->num_display_modes;
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    for (i = nmodes; i--;) {
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        if (SDL_memcmp(mode, &modes[i], sizeof(*mode)) == 0) {
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            return SDL_FALSE;
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        }
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    }
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    /* Go ahead and add the new mode */
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    if (nmodes == display->max_display_modes) {
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        modes =
slouken@1895
   388
            SDL_realloc(modes,
slouken@1895
   389
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@1895
   390
        if (!modes) {
slouken@1895
   391
            return SDL_FALSE;
slouken@1895
   392
        }
slouken@1895
   393
        display->display_modes = modes;
slouken@1895
   394
        display->max_display_modes += 32;
slouken@1895
   395
    }
slouken@1895
   396
    modes[nmodes] = *mode;
slouken@1895
   397
    display->num_display_modes++;
slouken@1895
   398
slouken@1895
   399
    return SDL_TRUE;
slouken@0
   400
}
slouken@0
   401
slouken@1895
   402
int
slouken@1895
   403
SDL_GetNumDisplayModes()
slouken@0
   404
{
slouken@1895
   405
    if (_this) {
slouken@1895
   406
        SDL_VideoDisplay *display = &SDL_CurrentDisplay;
slouken@1895
   407
        if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@1895
   408
            _this->GetDisplayModes(_this);
slouken@1895
   409
            SDL_qsort(display->display_modes, display->num_display_modes,
slouken@1895
   410
                      sizeof(SDL_DisplayMode), cmpmodes);
slouken@1895
   411
        }
slouken@1895
   412
        return display->num_display_modes;
slouken@1895
   413
    }
slouken@1895
   414
    return 0;
slouken@0
   415
}
slouken@0
   416
slouken@1895
   417
const SDL_DisplayMode *
slouken@1895
   418
SDL_GetDisplayMode(int index)
slouken@0
   419
{
slouken@1895
   420
    if (index < 0 || index >= SDL_GetNumDisplayModes()) {
slouken@1895
   421
        SDL_SetError("index must be in the range of 0 - %d",
slouken@1895
   422
                     SDL_GetNumDisplayModes() - 1);
slouken@1895
   423
        return NULL;
slouken@1895
   424
    }
slouken@1895
   425
    return &SDL_CurrentDisplay.display_modes[index];
slouken@0
   426
}
slouken@0
   427
slouken@1895
   428
const SDL_DisplayMode *
slouken@1895
   429
SDL_GetDesktopDisplayMode(void)
slouken@0
   430
{
slouken@1895
   431
    if (_this) {
slouken@1895
   432
        return &SDL_CurrentDisplay.desktop_mode;
slouken@1895
   433
    }
slouken@1895
   434
    return NULL;
slouken@0
   435
}
slouken@0
   436
slouken@1895
   437
const SDL_DisplayMode *
slouken@1895
   438
SDL_GetCurrentDisplayMode(void)
slouken@0
   439
{
slouken@1895
   440
    if (_this) {
slouken@1895
   441
        return &SDL_CurrentDisplay.current_mode;
slouken@1895
   442
    }
slouken@1895
   443
    return NULL;
slouken@0
   444
}
slouken@0
   445
slouken@1895
   446
SDL_DisplayMode *
slouken@1895
   447
SDL_GetClosestDisplayMode(const SDL_DisplayMode * mode,
slouken@1895
   448
                          SDL_DisplayMode * closest)
slouken@0
   449
{
slouken@1895
   450
    Uint32 target_format;
slouken@1895
   451
    int target_refresh_rate;
slouken@1895
   452
    int i;
slouken@1895
   453
    SDL_DisplayMode *current, *match;
slouken@0
   454
slouken@1895
   455
    if (!_this || !mode || !closest) {
slouken@1895
   456
        return NULL;
slouken@1895
   457
    }
slouken@0
   458
slouken@1895
   459
    /* Default to the desktop format */
slouken@1895
   460
    if (mode->format) {
slouken@1895
   461
        target_format = mode->format;
slouken@1895
   462
    } else {
slouken@1895
   463
        target_format = SDL_CurrentDisplay.desktop_mode.format;
slouken@1895
   464
    }
slouken@0
   465
slouken@1895
   466
    /* Default to the desktop refresh rate */
slouken@1895
   467
    if (mode->refresh_rate) {
slouken@1895
   468
        target_refresh_rate = mode->refresh_rate;
slouken@1895
   469
    } else {
slouken@1895
   470
        target_refresh_rate = SDL_CurrentDisplay.desktop_mode.refresh_rate;
slouken@1895
   471
    }
slouken@0
   472
slouken@1895
   473
    match = NULL;
slouken@1895
   474
    for (i = 0; i < SDL_GetNumDisplayModes(); ++i) {
slouken@1895
   475
        current = &SDL_CurrentDisplay.display_modes[i];
slouken@1895
   476
slouken@1895
   477
        if ((current->w && current->h) &&
slouken@1895
   478
            (current->w < mode->w || current->h < mode->h)) {
slouken@1895
   479
            /* Out of sorted modes large enough here */
slouken@1895
   480
            break;
slouken@1895
   481
        }
slouken@1895
   482
        if (!match || current->w < match->w || current->h < match->h) {
slouken@1895
   483
            match = current;
slouken@1895
   484
            continue;
slouken@1895
   485
        }
slouken@1895
   486
        if (current->format != match->format) {
slouken@1895
   487
            /* Sorted highest depth to lowest */
slouken@1895
   488
            if (current->format == target_format ||
slouken@1895
   489
                (SDL_BITSPERPIXEL(current->format) >=
slouken@1895
   490
                 SDL_BITSPERPIXEL(target_format)
slouken@1895
   491
                 && SDL_PIXELTYPE(current->format) ==
slouken@1895
   492
                 SDL_PIXELTYPE(target_format))) {
slouken@1895
   493
                match = current;
slouken@1895
   494
            }
slouken@1895
   495
            continue;
slouken@1895
   496
        }
slouken@1895
   497
        if (current->refresh_rate != match->refresh_rate) {
slouken@1895
   498
            /* Sorted highest refresh to lowest */
slouken@1895
   499
            if (current->refresh_rate >= target_refresh_rate) {
slouken@1895
   500
                match = current;
slouken@1895
   501
            }
slouken@1895
   502
        }
slouken@1895
   503
    }
slouken@1895
   504
    if (match) {
slouken@1895
   505
        if (match->format) {
slouken@1895
   506
            closest->format = match->format;
slouken@1895
   507
        } else {
slouken@1895
   508
            closest->format = mode->format;
slouken@1895
   509
        }
slouken@1895
   510
        if (match->w && match->h) {
slouken@1895
   511
            closest->w = match->w;
slouken@1895
   512
            closest->h = match->h;
slouken@1895
   513
        } else {
slouken@1895
   514
            closest->w = mode->w;
slouken@1895
   515
            closest->h = mode->h;
slouken@1895
   516
        }
slouken@1895
   517
        if (match->refresh_rate) {
slouken@1895
   518
            closest->refresh_rate = match->refresh_rate;
slouken@1895
   519
        } else {
slouken@1895
   520
            closest->refresh_rate = mode->refresh_rate;
slouken@1895
   521
        }
slouken@1895
   522
        closest->driverdata = match->driverdata;
slouken@1895
   523
slouken@1895
   524
        /* Pick some reasonable defaults if the app and driver don't care */
slouken@1895
   525
        if (!closest->format) {
slouken@1895
   526
            closest->format = SDL_PixelFormat_RGB888;
slouken@1895
   527
        }
slouken@1895
   528
        if (!closest->w) {
slouken@1895
   529
            closest->w = 640;
slouken@1895
   530
        }
slouken@1895
   531
        if (!closest->h) {
slouken@1895
   532
            closest->h = 480;
slouken@1895
   533
        }
slouken@1895
   534
        return closest;
slouken@1895
   535
    }
slouken@1895
   536
    return NULL;
slouken@0
   537
}
slouken@0
   538
slouken@1895
   539
int
slouken@1895
   540
SDL_SetDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   541
{
slouken@1895
   542
    SDL_VideoDisplay *display;
slouken@1895
   543
    SDL_DisplayMode display_mode;
slouken@1895
   544
    int i, ncolors;
slouken@0
   545
slouken@1895
   546
    if (!_this) {
slouken@1912
   547
        SDL_UninitializedVideo();
slouken@1895
   548
        return -1;
slouken@1895
   549
    }
slouken@0
   550
slouken@1895
   551
    if (!mode) {
slouken@1895
   552
        mode = SDL_GetDesktopDisplayMode();
slouken@1895
   553
    }
slouken@1895
   554
    display = &SDL_CurrentDisplay;
slouken@1895
   555
    display_mode = *mode;
slouken@1895
   556
slouken@1895
   557
    /* Default to the current mode */
slouken@1895
   558
    if (!display_mode.format) {
slouken@1895
   559
        display_mode.format = display->current_mode.format;
slouken@1895
   560
    }
slouken@1895
   561
    if (!display_mode.w) {
slouken@1895
   562
        display_mode.w = display->current_mode.w;
slouken@1895
   563
    }
slouken@1895
   564
    if (!display_mode.h) {
slouken@1895
   565
        display_mode.h = display->current_mode.h;
slouken@1895
   566
    }
slouken@1895
   567
    if (!display_mode.refresh_rate) {
slouken@1895
   568
        display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@1895
   569
    }
slouken@1895
   570
slouken@1895
   571
    /* Get a good video mode, the closest one possible */
slouken@1895
   572
    if (!SDL_GetClosestDisplayMode(&display_mode, &display_mode)) {
slouken@1895
   573
        SDL_SetError("No video mode large enough for %dx%d",
slouken@1895
   574
                     display_mode.w, display_mode.h);
slouken@1895
   575
        return -1;
slouken@1895
   576
    }
slouken@1895
   577
slouken@1895
   578
    /* See if there's anything left to do */
slouken@1895
   579
    if (SDL_memcmp
slouken@1895
   580
        (&display_mode, SDL_GetCurrentDisplayMode(),
slouken@1895
   581
         sizeof(display_mode)) == 0) {
slouken@1895
   582
        return 0;
slouken@1895
   583
    }
slouken@1895
   584
slouken@1895
   585
    /* Actually change the display mode */
slouken@1895
   586
    if (_this->SetDisplayMode(_this, &display_mode) < 0) {
slouken@1895
   587
        return -1;
slouken@1895
   588
    }
slouken@1895
   589
    display->current_mode = display_mode;
slouken@1895
   590
slouken@1895
   591
    /* Set up a palette, if necessary */
slouken@1895
   592
    if (SDL_ISPIXELFORMAT_INDEXED(display_mode.format)) {
slouken@1895
   593
        ncolors = (1 << SDL_BITSPERPIXEL(display_mode.format));
slouken@1895
   594
    } else {
slouken@1895
   595
        ncolors = 0;
slouken@1895
   596
    }
slouken@1895
   597
    if ((!ncolors && display->palette) || (ncolors && !display->palette)
slouken@1895
   598
        || (ncolors && ncolors != display->palette->ncolors)) {
slouken@1895
   599
        if (display->palette) {
slouken@1895
   600
            SDL_FreePalette(display->palette);
slouken@1895
   601
            display->palette = NULL;
slouken@1895
   602
        }
slouken@1895
   603
        if (ncolors) {
slouken@1895
   604
            display->palette = SDL_AllocPalette(ncolors);
slouken@1895
   605
            if (!display->palette) {
slouken@1895
   606
                return -1;
slouken@1895
   607
            }
slouken@1895
   608
            SDL_DitherColors(display->palette->colors,
slouken@1895
   609
                             SDL_BITSPERPIXEL(display_mode.format));
slouken@1895
   610
        }
slouken@1895
   611
    }
slouken@1895
   612
slouken@1895
   613
    /* Move any fullscreen windows into position */
slouken@1895
   614
    for (i = 0; i < display->num_windows; ++i) {
slouken@1895
   615
        SDL_Window *window = &display->windows[i];
slouken@1895
   616
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1956
   617
            SDL_SetWindowPosition(window->id, SDL_WINDOWPOS_CENTERED,
slouken@1956
   618
                                  SDL_WINDOWPOS_CENTERED);
slouken@1895
   619
        }
slouken@1895
   620
    }
slouken@1895
   621
slouken@1895
   622
    return 0;
slouken@0
   623
}
slouken@0
   624
slouken@1895
   625
int
slouken@1895
   626
SDL_SetFullscreenDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   627
{
slouken@1895
   628
    SDL_VideoDisplay *display;
slouken@1895
   629
    int i;
slouken@0
   630
slouken@1895
   631
    if (!_this) {
slouken@1912
   632
        SDL_UninitializedVideo();
slouken@1895
   633
        return -1;
slouken@1895
   634
    }
slouken@0
   635
slouken@1895
   636
    display = &SDL_CurrentDisplay;
slouken@1895
   637
    if (mode) {
slouken@1895
   638
        SDL_GetClosestDisplayMode(mode, &display->desired_mode);
slouken@1895
   639
        display->fullscreen_mode = &display->desired_mode;
slouken@1895
   640
    } else {
slouken@1895
   641
        display->fullscreen_mode = NULL;
slouken@1895
   642
    }
slouken@1895
   643
slouken@1895
   644
    /* Actually set the mode if we have a fullscreen window visible */
slouken@1895
   645
    for (i = 0; i < display->num_windows; ++i) {
slouken@1895
   646
        SDL_Window *window = &display->windows[i];
slouken@1895
   647
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
   648
            return SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
   649
        }
slouken@1895
   650
    }
slouken@1895
   651
    return 0;
slouken@0
   652
}
slouken@0
   653
slouken@1895
   654
const SDL_DisplayMode *
slouken@1895
   655
SDL_GetFullscreenDisplayMode(void)
slouken@0
   656
{
slouken@1895
   657
    if (_this) {
slouken@1895
   658
        return SDL_CurrentDisplay.fullscreen_mode;
slouken@1895
   659
    }
slouken@1895
   660
    return NULL;
slouken@0
   661
}
slouken@0
   662
slouken@1895
   663
int
slouken@1895
   664
SDL_SetDisplayPalette(const SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   665
{
slouken@1895
   666
    SDL_Palette *palette;
slouken@1895
   667
    int status = 0;
slouken@0
   668
slouken@1895
   669
    if (!_this) {
slouken@1912
   670
        SDL_UninitializedVideo();
slouken@1895
   671
        return -1;
slouken@1895
   672
    }
slouken@1895
   673
    palette = SDL_CurrentDisplay.palette;
slouken@1895
   674
    if (!palette) {
slouken@1895
   675
        SDL_SetError("Display mode does not have a palette");
slouken@1895
   676
        return -1;
slouken@1895
   677
    }
slouken@0
   678
slouken@1895
   679
    status = SDL_SetPaletteColors(palette, colors, firstcolor, ncolors);
slouken@0
   680
slouken@1895
   681
    if (_this->SetDisplayPalette) {
slouken@1895
   682
        if (_this->SetDisplayPalette(_this, palette) < 0) {
slouken@1895
   683
            status = -1;
slouken@1895
   684
        }
slouken@1895
   685
    }
slouken@1895
   686
    return status;
slouken@0
   687
}
slouken@0
   688
slouken@1895
   689
int
slouken@1895
   690
SDL_GetDisplayPalette(SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   691
{
slouken@1895
   692
    SDL_Palette *palette;
slouken@1895
   693
slouken@1895
   694
    if (!_this) {
slouken@1912
   695
        SDL_UninitializedVideo();
slouken@1895
   696
        return -1;
slouken@1895
   697
    }
slouken@1895
   698
slouken@1895
   699
    palette = SDL_CurrentDisplay.palette;
slouken@1895
   700
    if (!palette->ncolors) {
slouken@1895
   701
        SDL_SetError("Display mode does not have a palette");
slouken@1895
   702
        return -1;
slouken@1895
   703
    }
slouken@1895
   704
slouken@1895
   705
    if (firstcolor < 0 || (firstcolor + ncolors) > palette->ncolors) {
slouken@1895
   706
        SDL_SetError("Palette indices are out of range");
slouken@1895
   707
        return -1;
slouken@1895
   708
    }
slouken@1895
   709
slouken@1895
   710
    SDL_memcpy(colors, &palette->colors[firstcolor],
slouken@1895
   711
               ncolors * sizeof(*colors));
slouken@1895
   712
    return 0;
slouken@0
   713
}
slouken@0
   714
slouken@1895
   715
SDL_WindowID
slouken@1895
   716
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
   717
{
slouken@1895
   718
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@1895
   719
                                  SDL_WINDOW_OPENGL |
slouken@1895
   720
                                  SDL_WINDOW_BORDERLESS |
slouken@1956
   721
                                  SDL_WINDOW_RESIZABLE);
slouken@1895
   722
    SDL_VideoDisplay *display;
slouken@1895
   723
    SDL_Window window;
slouken@1895
   724
    int num_windows;
slouken@1895
   725
    SDL_Window *windows;
slouken@0
   726
slouken@1895
   727
    if (!_this) {
slouken@1912
   728
        SDL_UninitializedVideo();
slouken@1912
   729
        return 0;
slouken@1912
   730
    }
slouken@1912
   731
slouken@1912
   732
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@1912
   733
        SDL_SetError("No OpenGL support in video driver");
slouken@1895
   734
        return 0;
slouken@1895
   735
    }
slouken@0
   736
slouken@1956
   737
    /* Fullscreen windows don't have any window decorations */
slouken@1956
   738
    if (flags & SDL_WINDOW_FULLSCREEN) {
slouken@1956
   739
        flags |= SDL_WINDOW_BORDERLESS;
slouken@1956
   740
        flags &= ~SDL_WINDOW_RESIZABLE;
slouken@1956
   741
    }
slouken@1956
   742
slouken@1895
   743
    SDL_zero(window);
slouken@1895
   744
    window.id = _this->next_object_id++;
slouken@1895
   745
    window.x = x;
slouken@1895
   746
    window.y = y;
slouken@1895
   747
    window.w = w;
slouken@1895
   748
    window.h = h;
slouken@1895
   749
    window.flags = (flags & allowed_flags);
slouken@1895
   750
    window.display = _this->current_display;
slouken@0
   751
slouken@1895
   752
    if (_this->CreateWindow && _this->CreateWindow(_this, &window) < 0) {
slouken@1895
   753
        return 0;
slouken@1895
   754
    }
slouken@0
   755
slouken@1895
   756
    display = &SDL_CurrentDisplay;
slouken@1895
   757
    num_windows = display->num_windows;
slouken@1895
   758
    windows =
slouken@1895
   759
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@1895
   760
    if (!windows) {
slouken@1895
   761
        if (_this->DestroyWindow) {
slouken@1895
   762
            _this->DestroyWindow(_this, &window);
slouken@1895
   763
        }
slouken@1895
   764
        return 0;
slouken@1895
   765
    }
slouken@1895
   766
    windows[num_windows] = window;
slouken@1895
   767
    display->windows = windows;
slouken@1895
   768
    display->num_windows++;
slouken@0
   769
slouken@1956
   770
    if (title) {
slouken@1956
   771
        SDL_SetWindowTitle(window.id, title);
slouken@1895
   772
    }
slouken@1956
   773
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@1956
   774
        SDL_MaximizeWindow(window.id);
slouken@1956
   775
    }
slouken@1956
   776
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@1956
   777
        SDL_MinimizeWindow(window.id);
slouken@1956
   778
    }
slouken@1956
   779
    if (flags & SDL_WINDOW_SHOWN) {
slouken@1956
   780
        SDL_ShowWindow(window.id);
slouken@1956
   781
    }
slouken@1956
   782
    if (flags & SDL_WINDOW_INPUT_GRABBED) {
slouken@1956
   783
        SDL_SetWindowGrab(window.id, 1);
slouken@1956
   784
    }
slouken@1895
   785
    return window.id;
slouken@1895
   786
}
slouken@0
   787
slouken@1895
   788
SDL_WindowID
slouken@1895
   789
SDL_CreateWindowFrom(const void *data)
slouken@1895
   790
{
slouken@1895
   791
    SDL_VideoDisplay *display;
slouken@1895
   792
    SDL_Window window;
slouken@1895
   793
    int num_windows;
slouken@1895
   794
    SDL_Window *windows;
slouken@0
   795
slouken@1895
   796
    if (!_this) {
slouken@1912
   797
        SDL_UninitializedVideo();
slouken@1895
   798
        return (0);
slouken@1895
   799
    }
slouken@1895
   800
slouken@1895
   801
    SDL_zero(window);
slouken@1895
   802
    window.id = _this->next_object_id++;
slouken@1895
   803
    window.display = _this->current_display;
slouken@1895
   804
slouken@1895
   805
    if (!_this->CreateWindowFrom ||
slouken@1895
   806
        _this->CreateWindowFrom(_this, &window, data) < 0) {
slouken@1895
   807
        return 0;
slouken@1895
   808
    }
slouken@1895
   809
slouken@1895
   810
    display = &SDL_CurrentDisplay;
slouken@1895
   811
    num_windows = display->num_windows;
slouken@1895
   812
    windows =
slouken@1895
   813
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@1895
   814
    if (!windows) {
slouken@1895
   815
        if (_this->DestroyWindow) {
slouken@1895
   816
            _this->DestroyWindow(_this, &window);
slouken@1895
   817
        }
slouken@1895
   818
        if (window.title) {
slouken@1895
   819
            SDL_free(window.title);
slouken@1895
   820
        }
slouken@1895
   821
        return 0;
slouken@1895
   822
    }
slouken@1895
   823
    windows[num_windows] = window;
slouken@1895
   824
    display->windows = windows;
slouken@1895
   825
    display->num_windows++;
slouken@1895
   826
slouken@1895
   827
    return window.id;
slouken@1895
   828
}
slouken@1895
   829
slouken@1924
   830
int
slouken@1928
   831
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
   832
{
slouken@1956
   833
    char *title = window->title;
slouken@1956
   834
slouken@1928
   835
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@1924
   836
        SDL_SetError("No OpenGL support in video driver");
slouken@1924
   837
        return -1;
slouken@1924
   838
    }
slouken@1956
   839
slouken@1924
   840
    if (_this->DestroyWindow) {
slouken@1924
   841
        _this->DestroyWindow(_this, window);
slouken@1924
   842
    }
slouken@1956
   843
slouken@1956
   844
    window->title = NULL;
slouken@1956
   845
    window->flags =
slouken@1956
   846
        (flags &
slouken@1956
   847
         ~(SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED | SDL_WINDOW_SHOWN |
slouken@1956
   848
           SDL_WINDOW_INPUT_GRABBED));
slouken@1956
   849
slouken@1956
   850
    if (_this->CreateWindow && _this->CreateWindow(_this, window) < 0) {
slouken@1956
   851
        return -1;
slouken@1956
   852
    }
slouken@1956
   853
slouken@1956
   854
    if (title) {
slouken@1956
   855
        SDL_SetWindowTitle(window->id, title);
slouken@1956
   856
        SDL_free(title);
slouken@1956
   857
    }
slouken@1956
   858
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@1956
   859
        SDL_MaximizeWindow(window->id);
slouken@1956
   860
    }
slouken@1956
   861
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@1956
   862
        SDL_MinimizeWindow(window->id);
slouken@1956
   863
    }
slouken@1956
   864
    if (flags & SDL_WINDOW_SHOWN) {
slouken@1956
   865
        SDL_ShowWindow(window->id);
slouken@1956
   866
    }
slouken@1956
   867
    if (flags & SDL_WINDOW_INPUT_GRABBED) {
slouken@1956
   868
        SDL_SetWindowGrab(window->id, 1);
slouken@1956
   869
    }
slouken@1956
   870
    return 0;
slouken@1924
   871
}
slouken@1924
   872
slouken@1895
   873
SDL_Window *
slouken@1895
   874
SDL_GetWindowFromID(SDL_WindowID windowID)
slouken@1895
   875
{
slouken@1895
   876
    int i, j;
slouken@1895
   877
slouken@1895
   878
    if (!_this) {
slouken@1912
   879
        SDL_UninitializedVideo();
slouken@1895
   880
        return NULL;
slouken@1895
   881
    }
slouken@1895
   882
slouken@1895
   883
    for (i = 0; i < _this->num_displays; ++i) {
slouken@1895
   884
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
   885
        for (j = 0; j < display->num_windows; ++j) {
slouken@1895
   886
            SDL_Window *window = &display->windows[j];
slouken@1895
   887
            if (window->id == windowID) {
slouken@1895
   888
                return window;
slouken@1895
   889
            }
slouken@1895
   890
        }
slouken@1895
   891
    }
slouken@1895
   892
    return NULL;
slouken@1895
   893
}
slouken@1895
   894
slouken@1895
   895
SDL_VideoDisplay *
slouken@1895
   896
SDL_GetDisplayFromWindow(SDL_Window * window)
slouken@1895
   897
{
slouken@1895
   898
    if (!_this) {
slouken@1912
   899
        SDL_UninitializedVideo();
slouken@1895
   900
        return NULL;
slouken@1895
   901
    }
slouken@1956
   902
    if (!window) {
slouken@1956
   903
        return NULL;
slouken@1956
   904
    }
slouken@1895
   905
    return &_this->displays[window->display];
slouken@1895
   906
}
slouken@1895
   907
slouken@1895
   908
Uint32
slouken@1895
   909
SDL_GetWindowFlags(SDL_WindowID windowID)
slouken@1895
   910
{
slouken@1895
   911
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   912
slouken@1895
   913
    if (!window) {
slouken@1895
   914
        return 0;
slouken@1895
   915
    }
slouken@1895
   916
    return window->flags;
slouken@1895
   917
}
slouken@1895
   918
slouken@1895
   919
void
slouken@1895
   920
SDL_SetWindowTitle(SDL_WindowID windowID, const char *title)
slouken@1895
   921
{
slouken@1895
   922
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1956
   923
    const char *last_title;
slouken@1895
   924
slouken@1956
   925
    if (!window || title == window->title) {
slouken@1895
   926
        return;
slouken@1895
   927
    }
slouken@1956
   928
slouken@1895
   929
    if (window->title) {
slouken@1895
   930
        SDL_free(window->title);
slouken@1895
   931
    }
slouken@1956
   932
    if (title) {
slouken@1956
   933
        window->title = SDL_strdup(title);
slouken@1956
   934
    } else {
slouken@1956
   935
        window->title = NULL;
slouken@1956
   936
    }
slouken@1895
   937
slouken@1895
   938
    if (_this->SetWindowTitle) {
slouken@1895
   939
        _this->SetWindowTitle(_this, window);
slouken@1895
   940
    }
slouken@1895
   941
}
slouken@1895
   942
slouken@1895
   943
const char *
slouken@1895
   944
SDL_GetWindowTitle(SDL_WindowID windowID)
slouken@1895
   945
{
slouken@1895
   946
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   947
slouken@1895
   948
    if (!window) {
slouken@1895
   949
        return NULL;
slouken@1895
   950
    }
slouken@1895
   951
    return window->title;
slouken@1895
   952
}
slouken@1895
   953
slouken@1895
   954
void
slouken@1895
   955
SDL_SetWindowData(SDL_WindowID windowID, void *userdata)
slouken@1895
   956
{
slouken@1895
   957
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   958
slouken@1895
   959
    if (!window) {
slouken@1895
   960
        return;
slouken@1895
   961
    }
slouken@1895
   962
    window->userdata = userdata;
slouken@1895
   963
}
slouken@1895
   964
slouken@1895
   965
void *
slouken@1895
   966
SDL_GetWindowData(SDL_WindowID windowID)
slouken@1895
   967
{
slouken@1895
   968
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   969
slouken@1895
   970
    if (!window) {
slouken@1895
   971
        return NULL;
slouken@1895
   972
    }
slouken@1895
   973
    return window->userdata;
slouken@1895
   974
}
slouken@1895
   975
slouken@1895
   976
void
slouken@1895
   977
SDL_SetWindowPosition(SDL_WindowID windowID, int x, int y)
slouken@1895
   978
{
slouken@1895
   979
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1956
   980
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
   981
slouken@1895
   982
    if (!window) {
slouken@1895
   983
        return;
slouken@1895
   984
    }
slouken@1895
   985
slouken@1956
   986
    if (x == SDL_WINDOWPOS_CENTERED) {
slouken@1956
   987
        window->x = (display->current_mode.w - window->w) / 2;
slouken@1956
   988
    } else if (x != SDL_WINDOWPOS_UNDEFINED) {
slouken@1895
   989
        window->x = x;
slouken@1895
   990
    }
slouken@1956
   991
    if (y == SDL_WINDOWPOS_CENTERED) {
slouken@1956
   992
        window->y = (display->current_mode.h - window->h) / 2;
slouken@1956
   993
    } else if (y != SDL_WINDOWPOS_UNDEFINED) {
slouken@1895
   994
        window->y = y;
slouken@1895
   995
    }
slouken@1895
   996
slouken@1895
   997
    if (_this->SetWindowPosition) {
slouken@1895
   998
        _this->SetWindowPosition(_this, window);
slouken@1895
   999
    }
slouken@1895
  1000
}
slouken@1895
  1001
slouken@1895
  1002
void
slouken@1895
  1003
SDL_GetWindowPosition(SDL_WindowID windowID, int *x, int *y)
slouken@1895
  1004
{
slouken@1895
  1005
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1006
slouken@1895
  1007
    if (!window) {
slouken@1895
  1008
        return;
slouken@1895
  1009
    }
slouken@1895
  1010
    if (x) {
slouken@1895
  1011
        *x = window->x;
slouken@1895
  1012
    }
slouken@1895
  1013
    if (y) {
slouken@1895
  1014
        *y = window->y;
slouken@1895
  1015
    }
slouken@1895
  1016
}
slouken@1895
  1017
slouken@1895
  1018
void
slouken@1895
  1019
SDL_SetWindowSize(SDL_WindowID windowID, int w, int h)
slouken@1895
  1020
{
slouken@1895
  1021
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1022
slouken@1895
  1023
    if (!window) {
slouken@1895
  1024
        return;
slouken@1895
  1025
    }
slouken@1895
  1026
slouken@1895
  1027
    window->w = w;
slouken@1895
  1028
    window->h = h;
slouken@1895
  1029
slouken@1895
  1030
    if (_this->SetWindowSize) {
slouken@1895
  1031
        _this->SetWindowSize(_this, window);
slouken@1895
  1032
    }
slouken@1895
  1033
}
slouken@1895
  1034
slouken@1895
  1035
void
slouken@1895
  1036
SDL_GetWindowSize(SDL_WindowID windowID, int *w, int *h)
slouken@1895
  1037
{
slouken@1895
  1038
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1039
slouken@1895
  1040
    if (!window) {
slouken@1895
  1041
        return;
slouken@1895
  1042
    }
slouken@1895
  1043
    if (w) {
slouken@1895
  1044
        *w = window->w;
slouken@1895
  1045
    }
slouken@1895
  1046
    if (h) {
slouken@1895
  1047
        *h = window->h;
slouken@1895
  1048
    }
slouken@1895
  1049
}
slouken@1895
  1050
slouken@1895
  1051
void
slouken@1895
  1052
SDL_ShowWindow(SDL_WindowID windowID)
slouken@1895
  1053
{
slouken@1895
  1054
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1055
slouken@1895
  1056
    if (!window || (window->flags & SDL_WINDOW_SHOWN)) {
slouken@1895
  1057
        return;
slouken@1895
  1058
    }
slouken@1895
  1059
slouken@1895
  1060
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1061
slouken@1895
  1062
    if (_this->ShowWindow) {
slouken@1895
  1063
        _this->ShowWindow(_this, window);
slouken@1895
  1064
    }
slouken@1895
  1065
}
slouken@1895
  1066
slouken@1895
  1067
void
slouken@1895
  1068
SDL_HideWindow(SDL_WindowID windowID)
slouken@1895
  1069
{
slouken@1895
  1070
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1071
slouken@1895
  1072
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@1895
  1073
        return;
slouken@1895
  1074
    }
slouken@1895
  1075
slouken@1895
  1076
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1077
slouken@1895
  1078
    if (_this->HideWindow) {
slouken@1895
  1079
        _this->HideWindow(_this, window);
slouken@1895
  1080
    }
slouken@1895
  1081
}
slouken@1895
  1082
slouken@1895
  1083
void
slouken@1895
  1084
SDL_RaiseWindow(SDL_WindowID windowID)
slouken@1895
  1085
{
slouken@1895
  1086
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1087
slouken@1956
  1088
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@1895
  1089
        return;
slouken@1895
  1090
    }
slouken@1895
  1091
slouken@1895
  1092
    if (_this->RaiseWindow) {
slouken@1895
  1093
        _this->RaiseWindow(_this, window);
slouken@1895
  1094
    }
slouken@1895
  1095
}
slouken@1895
  1096
slouken@1895
  1097
void
slouken@1895
  1098
SDL_MaximizeWindow(SDL_WindowID windowID)
slouken@1895
  1099
{
slouken@1895
  1100
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1101
slouken@1895
  1102
    if (!window || (window->flags & SDL_WINDOW_MAXIMIZED)) {
slouken@1895
  1103
        return;
slouken@1895
  1104
    }
slouken@1895
  1105
slouken@1895
  1106
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@1895
  1107
slouken@1895
  1108
    if (_this->MaximizeWindow) {
slouken@1895
  1109
        _this->MaximizeWindow(_this, window);
slouken@1895
  1110
    }
slouken@1895
  1111
}
slouken@1895
  1112
slouken@1895
  1113
void
slouken@1895
  1114
SDL_MinimizeWindow(SDL_WindowID windowID)
slouken@1895
  1115
{
slouken@1895
  1116
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1117
slouken@1895
  1118
    if (!window || (window->flags & SDL_WINDOW_MINIMIZED)) {
slouken@1895
  1119
        return;
slouken@1895
  1120
    }
slouken@1895
  1121
slouken@1895
  1122
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@1895
  1123
slouken@1895
  1124
    if (_this->MinimizeWindow) {
slouken@1895
  1125
        _this->MinimizeWindow(_this, window);
slouken@1895
  1126
    }
slouken@1895
  1127
}
slouken@1895
  1128
slouken@1895
  1129
void
slouken@1895
  1130
SDL_RestoreWindow(SDL_WindowID windowID)
slouken@1895
  1131
{
slouken@1895
  1132
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1133
slouken@1895
  1134
    if (!window
slouken@1895
  1135
        || (window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@1895
  1136
        return;
slouken@1895
  1137
    }
slouken@1895
  1138
slouken@1895
  1139
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@1895
  1140
slouken@1895
  1141
    if (_this->RestoreWindow) {
slouken@1895
  1142
        _this->RestoreWindow(_this, window);
slouken@1895
  1143
    }
slouken@1895
  1144
}
slouken@1895
  1145
slouken@1895
  1146
int
slouken@1895
  1147
SDL_SetWindowFullscreen(SDL_WindowID windowID, int fullscreen)
slouken@1895
  1148
{
slouken@1895
  1149
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1150
slouken@1895
  1151
    if (!window) {
slouken@1895
  1152
        return -1;
slouken@1895
  1153
    }
slouken@1895
  1154
slouken@1895
  1155
    if (fullscreen) {
slouken@1895
  1156
        fullscreen = SDL_WINDOW_FULLSCREEN;
slouken@1895
  1157
    }
slouken@1895
  1158
    if ((window->flags & SDL_WINDOW_FULLSCREEN) == fullscreen) {
slouken@1895
  1159
        return 0;
slouken@1895
  1160
    }
slouken@1895
  1161
slouken@1895
  1162
    if (fullscreen) {
slouken@1895
  1163
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
  1164
slouken@1895
  1165
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
  1166
            SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1167
slouken@1895
  1168
            /* Hide any other fullscreen windows */
slouken@1895
  1169
            int i;
slouken@1895
  1170
            for (i = 0; i < display->num_windows; ++i) {
slouken@1895
  1171
                SDL_Window *other = &display->windows[i];
slouken@1895
  1172
                if (other->id != windowID && FULLSCREEN_VISIBLE(other)) {
slouken@1895
  1173
                    SDL_MinimizeWindow(other->id);
slouken@1895
  1174
                }
slouken@1895
  1175
            }
slouken@1895
  1176
slouken@1895
  1177
            SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
  1178
        }
slouken@1895
  1179
    } else {
slouken@1895
  1180
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@1895
  1181
slouken@1895
  1182
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
  1183
            SDL_SetDisplayMode(NULL);
slouken@1895
  1184
        }
slouken@1895
  1185
    }
slouken@1895
  1186
    return 0;
slouken@1895
  1187
}
slouken@1895
  1188
slouken@1895
  1189
void
slouken@1895
  1190
SDL_SetWindowGrab(SDL_WindowID windowID, int mode)
slouken@1895
  1191
{
slouken@1895
  1192
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1193
slouken@1895
  1194
    if (!window || (!!mode == !!(window->flags & SDL_WINDOW_INPUT_GRABBED))) {
slouken@1895
  1195
        return;
slouken@1895
  1196
    }
slouken@1895
  1197
slouken@1895
  1198
    if (mode) {
slouken@1895
  1199
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@1895
  1200
    } else {
slouken@1895
  1201
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@1895
  1202
    }
slouken@1895
  1203
slouken@1895
  1204
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@1895
  1205
        _this->SetWindowGrab(_this, window);
slouken@1895
  1206
    }
slouken@1895
  1207
}
slouken@1895
  1208
slouken@1895
  1209
int
slouken@1895
  1210
SDL_GetWindowGrab(SDL_WindowID windowID)
slouken@1895
  1211
{
slouken@1895
  1212
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1213
slouken@1895
  1214
    if (!window) {
slouken@1895
  1215
        return 0;
slouken@1895
  1216
    }
slouken@1895
  1217
slouken@1895
  1218
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1219
}
slouken@1895
  1220
slouken@1895
  1221
void
slouken@1895
  1222
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1223
{
slouken@1895
  1224
}
slouken@1895
  1225
slouken@1895
  1226
void
slouken@1895
  1227
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1228
{
slouken@1895
  1229
}
slouken@1895
  1230
slouken@1895
  1231
void
slouken@1895
  1232
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1233
{
slouken@1895
  1234
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1235
slouken@1895
  1236
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@1895
  1237
        SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
  1238
    }
slouken@1895
  1239
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@1895
  1240
        _this->SetDisplayGammaRamp(_this, display->gamma);
slouken@1895
  1241
    }
slouken@1895
  1242
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) && _this->SetWindowGrab) {
slouken@1895
  1243
        _this->SetWindowGrab(_this, window);
slouken@1895
  1244
    }
slouken@1895
  1245
}
slouken@1895
  1246
slouken@1895
  1247
void
slouken@1895
  1248
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1249
{
slouken@1895
  1250
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1251
slouken@1895
  1252
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@1895
  1253
        SDL_MinimizeWindow(window->id);
slouken@1895
  1254
        SDL_SetDisplayMode(NULL);
slouken@1895
  1255
    }
slouken@1895
  1256
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@1895
  1257
        _this->SetDisplayGammaRamp(_this, display->saved_gamma);
slouken@1895
  1258
    }
slouken@1895
  1259
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) && _this->SetWindowGrab) {
slouken@1895
  1260
        _this->SetWindowGrab(_this, window);
slouken@1895
  1261
    }
slouken@1895
  1262
}
slouken@1895
  1263
slouken@1895
  1264
SDL_WindowID
slouken@1895
  1265
SDL_GetFocusWindow(void)
slouken@1895
  1266
{
slouken@1895
  1267
    SDL_VideoDisplay *display;
slouken@1895
  1268
    int i;
slouken@1895
  1269
slouken@1895
  1270
    if (!_this) {
slouken@1895
  1271
        return 0;
slouken@1895
  1272
    }
slouken@1895
  1273
slouken@1895
  1274
    display = &SDL_CurrentDisplay;
slouken@1895
  1275
    for (i = 0; i < display->num_windows; ++i) {
slouken@1895
  1276
        SDL_Window *window = &display->windows[i];
slouken@1895
  1277
slouken@1895
  1278
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@1895
  1279
            return window->id;
slouken@1895
  1280
        }
slouken@1895
  1281
    }
slouken@1895
  1282
    return 0;
slouken@1895
  1283
}
slouken@1895
  1284
slouken@1895
  1285
void
slouken@1895
  1286
SDL_DestroyWindow(SDL_WindowID windowID)
slouken@1895
  1287
{
slouken@1895
  1288
    int i, j;
slouken@1895
  1289
slouken@1895
  1290
    if (!_this) {
slouken@1895
  1291
        return;
slouken@1895
  1292
    }
slouken@1895
  1293
slouken@1895
  1294
    /* Restore video mode, etc. */
slouken@1895
  1295
    SDL_SendWindowEvent(windowID, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@1895
  1296
slouken@1895
  1297
    for (i = 0; i < _this->num_displays; ++i) {
slouken@1895
  1298
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  1299
        for (j = 0; j < display->num_windows; ++j) {
slouken@1895
  1300
            SDL_Window *window = &display->windows[j];
slouken@1895
  1301
            if (window->id != windowID) {
slouken@1895
  1302
                continue;
slouken@1895
  1303
            }
slouken@1895
  1304
            if (window->renderer) {
slouken@1895
  1305
                SDL_DestroyRenderer(window->id);
slouken@1895
  1306
            }
slouken@1895
  1307
            if (_this->DestroyWindow) {
slouken@1895
  1308
                _this->DestroyWindow(_this, window);
slouken@1895
  1309
            }
slouken@1895
  1310
            if (window->title) {
slouken@1895
  1311
                SDL_free(window->title);
slouken@1895
  1312
            }
slouken@1895
  1313
            if (j != display->num_windows - 1) {
slouken@1895
  1314
                SDL_memcpy(&display->windows[i],
slouken@1895
  1315
                           &display->windows[i + 1],
slouken@1895
  1316
                           (display->num_windows - i - 1) * sizeof(*window));
slouken@1895
  1317
            }
slouken@1895
  1318
            --display->num_windows;
slouken@1895
  1319
            return;
slouken@1895
  1320
        }
slouken@1895
  1321
    }
slouken@1895
  1322
}
slouken@1895
  1323
slouken@1895
  1324
void
slouken@1895
  1325
SDL_AddRenderDriver(int displayIndex, const SDL_RenderDriver * driver)
slouken@1895
  1326
{
slouken@1895
  1327
    SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@1895
  1328
    SDL_RenderDriver *render_drivers;
slouken@1895
  1329
slouken@1895
  1330
    render_drivers =
slouken@1895
  1331
        SDL_realloc(display->render_drivers,
slouken@1895
  1332
                    (display->num_render_drivers +
slouken@1895
  1333
                     1) * sizeof(*render_drivers));
slouken@1895
  1334
    if (render_drivers) {
slouken@1895
  1335
        render_drivers[display->num_render_drivers] = *driver;
slouken@1895
  1336
        display->render_drivers = render_drivers;
slouken@1895
  1337
        display->num_render_drivers++;
slouken@1895
  1338
    }
slouken@1895
  1339
}
slouken@1895
  1340
slouken@1895
  1341
int
slouken@1895
  1342
SDL_GetNumRenderers(void)
slouken@1895
  1343
{
slouken@1895
  1344
    if (_this) {
slouken@1895
  1345
        return SDL_CurrentDisplay.num_render_drivers;
slouken@1895
  1346
    }
slouken@1895
  1347
    return 0;
slouken@1895
  1348
}
slouken@1895
  1349
slouken@1895
  1350
int
slouken@1895
  1351
SDL_GetRendererInfo(int index, SDL_RendererInfo * info)
slouken@1895
  1352
{
slouken@1907
  1353
    if (!_this) {
slouken@1912
  1354
        SDL_UninitializedVideo();
slouken@1907
  1355
        return -1;
slouken@1907
  1356
    }
slouken@1907
  1357
slouken@1907
  1358
    if (index >= SDL_GetNumRenderers()) {
slouken@1895
  1359
        SDL_SetError("index must be in the range of 0 - %d",
slouken@1895
  1360
                     SDL_GetNumRenderers() - 1);
slouken@1895
  1361
        return -1;
slouken@1895
  1362
    }
slouken@1907
  1363
    if (index < 0) {
slouken@1907
  1364
        if (!SDL_CurrentDisplay.current_renderer) {
slouken@1907
  1365
            SDL_SetError("There is no current renderer");
slouken@1907
  1366
            return -1;
slouken@1907
  1367
        }
slouken@1907
  1368
        *info = SDL_CurrentDisplay.current_renderer->info;
slouken@1907
  1369
    } else {
slouken@1907
  1370
        *info = SDL_CurrentDisplay.render_drivers[index].info;
slouken@1907
  1371
    }
slouken@1895
  1372
    return 0;
slouken@1895
  1373
}
slouken@1895
  1374
slouken@1895
  1375
int
slouken@1895
  1376
SDL_CreateRenderer(SDL_WindowID windowID, int index, Uint32 flags)
slouken@1895
  1377
{
slouken@1895
  1378
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1379
slouken@1895
  1380
    if (!window) {
slouken@1895
  1381
        return 0;
slouken@1895
  1382
    }
slouken@1895
  1383
slouken@1895
  1384
    if (index < 0) {
slouken@1905
  1385
        const char *override = SDL_getenv("SDL_VIDEO_RENDERER");
slouken@1895
  1386
        int n = SDL_GetNumRenderers();
slouken@1895
  1387
        for (index = 0; index < n; ++index) {
slouken@1895
  1388
            SDL_RenderDriver *driver =
slouken@1895
  1389
                &SDL_CurrentDisplay.render_drivers[index];
slouken@1895
  1390
slouken@1905
  1391
            if (override) {
slouken@1905
  1392
                if (SDL_strcasecmp(override, driver->info.name) == 0) {
slouken@1905
  1393
                    break;
slouken@1905
  1394
                }
slouken@1905
  1395
            } else {
slouken@1905
  1396
                if ((driver->info.flags & flags) == flags) {
slouken@1905
  1397
                    break;
slouken@1905
  1398
                }
slouken@1895
  1399
            }
slouken@1895
  1400
        }
slouken@1895
  1401
        if (index == n) {
slouken@1895
  1402
            SDL_SetError("Couldn't find matching render driver");
slouken@1895
  1403
            return -1;
slouken@1895
  1404
        }
slouken@1895
  1405
    }
slouken@1895
  1406
slouken@1895
  1407
    if (index >= SDL_GetNumRenderers()) {
slouken@1895
  1408
        SDL_SetError("index must be -1 or in the range of 0 - %d",
slouken@1895
  1409
                     SDL_GetNumRenderers() - 1);
slouken@1895
  1410
        return -1;
slouken@1895
  1411
    }
slouken@1895
  1412
slouken@1895
  1413
    /* Free any existing renderer */
slouken@1895
  1414
    SDL_DestroyRenderer(windowID);
slouken@1895
  1415
slouken@1895
  1416
    /* Create a new renderer instance */
slouken@1895
  1417
    window->renderer =
slouken@1895
  1418
        SDL_CurrentDisplay.render_drivers[index].CreateRenderer(window,
slouken@1895
  1419
                                                                flags);
slouken@1923
  1420
    SDL_SelectRenderer(window->id);
slouken@1895
  1421
slouken@1895
  1422
    return 0;
slouken@1895
  1423
}
slouken@1895
  1424
slouken@1895
  1425
int
slouken@1895
  1426
SDL_SelectRenderer(SDL_WindowID windowID)
slouken@1895
  1427
{
slouken@1895
  1428
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1923
  1429
    SDL_Renderer *renderer;
slouken@1895
  1430
slouken@1895
  1431
    if (!window || !window->renderer) {
slouken@1895
  1432
        return -1;
slouken@1895
  1433
    }
slouken@1923
  1434
    renderer = window->renderer;
slouken@1923
  1435
    if (renderer && renderer->ActivateRenderer) {
slouken@1923
  1436
        if (renderer->ActivateRenderer(renderer) < 0) {
slouken@1923
  1437
            return -1;
slouken@1923
  1438
        }
slouken@1923
  1439
    }
slouken@1923
  1440
    SDL_CurrentDisplay.current_renderer = renderer;
slouken@1895
  1441
    return 0;
slouken@1895
  1442
}
slouken@1895
  1443
slouken@1895
  1444
SDL_TextureID
slouken@1895
  1445
SDL_CreateTexture(Uint32 format, int access, int w, int h)
slouken@1895
  1446
{
slouken@1895
  1447
    int hash;
slouken@1895
  1448
    SDL_Renderer *renderer;
slouken@1895
  1449
    SDL_Texture *texture;
slouken@1895
  1450
slouken@1895
  1451
    if (!_this) {
slouken@1912
  1452
        SDL_UninitializedVideo();
slouken@1895
  1453
        return 0;
slouken@1895
  1454
    }
slouken@1895
  1455
slouken@1895
  1456
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1457
    if (!renderer || !renderer->CreateTexture) {
slouken@1895
  1458
        return 0;
slouken@1895
  1459
    }
slouken@1895
  1460
slouken@1920
  1461
    texture = (SDL_Texture *) SDL_calloc(1, sizeof(*texture));
slouken@1895
  1462
    if (!texture) {
slouken@1895
  1463
        SDL_OutOfMemory();
slouken@1895
  1464
        return 0;
slouken@1895
  1465
    }
slouken@1895
  1466
slouken@1895
  1467
    texture->id = _this->next_object_id++;
slouken@1895
  1468
    texture->format = format;
slouken@1895
  1469
    texture->access = access;
slouken@1895
  1470
    texture->w = w;
slouken@1895
  1471
    texture->h = h;
slouken@1895
  1472
    texture->renderer = renderer;
slouken@1895
  1473
slouken@1895
  1474
    if (renderer->CreateTexture(renderer, texture) < 0) {
slouken@1924
  1475
        if (renderer->DestroyTexture) {
slouken@1924
  1476
            renderer->DestroyTexture(renderer, texture);
slouken@1924
  1477
        }
slouken@1895
  1478
        SDL_free(texture);
slouken@1895
  1479
        return 0;
slouken@1895
  1480
    }
slouken@1895
  1481
slouken@1895
  1482
    hash = (texture->id % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1483
    texture->next = SDL_CurrentDisplay.textures[hash];
slouken@1895
  1484
    SDL_CurrentDisplay.textures[hash] = texture;
slouken@1895
  1485
slouken@1895
  1486
    return texture->id;
slouken@1895
  1487
}
slouken@1895
  1488
slouken@1895
  1489
SDL_TextureID
slouken@1895
  1490
SDL_CreateTextureFromSurface(Uint32 format, int access, SDL_Surface * surface)
slouken@1895
  1491
{
slouken@1895
  1492
    SDL_TextureID textureID;
slouken@1895
  1493
    Uint32 surface_flags = surface->flags;
slouken@1895
  1494
    SDL_PixelFormat *fmt = surface->format;
slouken@1895
  1495
    Uint8 alpha;
slouken@1895
  1496
    SDL_Rect bounds;
slouken@1895
  1497
    SDL_Surface dst;
slouken@1895
  1498
    int bpp;
slouken@1895
  1499
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@1895
  1500
slouken@1895
  1501
    if (!surface) {
slouken@1895
  1502
        SDL_SetError("SDL_CreateTextureFromSurface() passed NULL surface");
slouken@1895
  1503
        return 0;
slouken@1895
  1504
    }
slouken@1895
  1505
slouken@1895
  1506
    if (format) {
slouken@1895
  1507
        if (!SDL_PixelFormatEnumToMasks
slouken@1895
  1508
            (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@1895
  1509
            SDL_SetError("Unknown pixel format");
slouken@1895
  1510
            return 0;
slouken@1895
  1511
        }
slouken@1895
  1512
    } else {
slouken@1895
  1513
        if (fmt->Amask || !(surface_flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA))) {
slouken@1895
  1514
            bpp = fmt->BitsPerPixel;
slouken@1895
  1515
            Rmask = fmt->Rmask;
slouken@1895
  1516
            Gmask = fmt->Gmask;
slouken@1895
  1517
            Bmask = fmt->Bmask;
slouken@1895
  1518
            Amask = fmt->Amask;
slouken@1895
  1519
        } else {
slouken@1895
  1520
            /* Need a format with alpha */
slouken@1895
  1521
            bpp = 32;
slouken@1895
  1522
            Rmask = 0x00FF0000;
slouken@1895
  1523
            Gmask = 0x0000FF00;
slouken@1895
  1524
            Bmask = 0x000000FF;
slouken@1895
  1525
            Amask = 0xFF000000;
slouken@1895
  1526
        }
slouken@1895
  1527
        format = SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
slouken@1895
  1528
        if (!format) {
slouken@1895
  1529
            SDL_SetError("Unknown pixel format");
slouken@1895
  1530
            return 0;
slouken@1895
  1531
        }
slouken@1895
  1532
    }
slouken@1895
  1533
slouken@1895
  1534
    textureID = SDL_CreateTexture(format, access, surface->w, surface->h);
slouken@1895
  1535
    if (!textureID) {
slouken@1895
  1536
        return 0;
slouken@1895
  1537
    }
slouken@1895
  1538
slouken@1895
  1539
    /* Set up a destination surface for the texture update */
slouken@1895
  1540
    SDL_zero(dst);
slouken@1895
  1541
    dst.format = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask);
slouken@1895
  1542
    if (!dst.format) {
slouken@1895
  1543
        SDL_DestroyTexture(textureID);
slouken@1895
  1544
        return 0;
slouken@1895
  1545
    }
slouken@1895
  1546
    dst.w = surface->w;
slouken@1895
  1547
    dst.h = surface->h;
slouken@1895
  1548
    if (SDL_LockTexture(textureID, NULL, 1, &dst.pixels, &dst.pitch) == 0) {
slouken@1895
  1549
        dst.flags |= SDL_PREALLOC;
slouken@1895
  1550
    } else {
slouken@1895
  1551
        dst.pitch = SDL_CalculatePitch(&dst);
slouken@1895
  1552
        dst.pixels = SDL_malloc(dst.h * dst.pitch);
slouken@1895
  1553
        if (!dst.pixels) {
slouken@1895
  1554
            SDL_DestroyTexture(textureID);
slouken@1895
  1555
            SDL_FreeFormat(dst.format);
slouken@1895
  1556
            SDL_OutOfMemory();
slouken@1895
  1557
            return 0;
slouken@1895
  1558
        }
slouken@1895
  1559
    }
slouken@1895
  1560
slouken@1895
  1561
    /* Copy the palette if any */
slouken@1895
  1562
    if (SDL_ISPIXELFORMAT_INDEXED(format)) {
slouken@1895
  1563
        if (fmt->palette) {
slouken@1895
  1564
            SDL_SetTexturePalette(textureID, fmt->palette->colors, 0,
slouken@1895
  1565
                                  fmt->palette->ncolors);
slouken@1895
  1566
            SDL_SetSurfacePalette(&dst, fmt->palette);
slouken@1895
  1567
        } else {
slouken@1895
  1568
            dst.format->palette =
slouken@1895
  1569
                SDL_AllocPalette((1 << SDL_BITSPERPIXEL(format)));
slouken@1895
  1570
            if (!dst.format->palette) {
slouken@1895
  1571
                SDL_DestroyTexture(textureID);
slouken@1895
  1572
                SDL_FreeFormat(dst.format);
slouken@1895
  1573
                return 0;
slouken@1895
  1574
            }
slouken@1895
  1575
            SDL_DitherColors(dst.format->palette->colors,
slouken@1895
  1576
                             SDL_BITSPERPIXEL(format));
slouken@1895
  1577
        }
slouken@1895
  1578
    }
slouken@1895
  1579
slouken@1895
  1580
    /* Make the texture transparent if the surface has colorkey */
slouken@1895
  1581
    if (surface_flags & SDL_SRCCOLORKEY) {
slouken@1895
  1582
        int row;
slouken@1895
  1583
        int length = dst.w * dst.format->BytesPerPixel;
slouken@1895
  1584
        Uint8 *p = (Uint8 *) dst.pixels;
slouken@1895
  1585
        for (row = 0; row < dst.h; ++row) {
slouken@1895
  1586
            SDL_memset(p, 0, length);
slouken@1895
  1587
            p += dst.pitch;
slouken@1895
  1588
        }
slouken@1895
  1589
    }
slouken@1895
  1590
slouken@1895
  1591
    /* Copy over the alpha channel */
slouken@1895
  1592
    if (surface_flags & SDL_SRCALPHA) {
slouken@1895
  1593
        if (fmt->Amask) {
slouken@1895
  1594
            surface->flags &= ~SDL_SRCALPHA;
slouken@1895
  1595
        } else {
slouken@1895
  1596
            /* FIXME: Need to make sure the texture has an alpha channel
slouken@1895
  1597
             *        and copy 'alpha' into the texture alpha channel.
slouken@1895
  1598
             */
slouken@1895
  1599
            alpha = surface->format->alpha;
slouken@1895
  1600
            SDL_SetAlpha(surface, 0, 0);
slouken@1895
  1601
        }
slouken@1895
  1602
    }
slouken@1895
  1603
slouken@1895
  1604
    /* Copy over the image data */
slouken@1895
  1605
    bounds.x = 0;
slouken@1895
  1606
    bounds.y = 0;
slouken@1895
  1607
    bounds.w = surface->w;
slouken@1895
  1608
    bounds.h = surface->h;
slouken@1895
  1609
    SDL_LowerBlit(surface, &bounds, &dst, &bounds);
slouken@1895
  1610
slouken@1895
  1611
    /* Clean up the original surface */
slouken@1895
  1612
    if ((surface_flags & SDL_SRCALPHA) == SDL_SRCALPHA) {
slouken@1895
  1613
        Uint32 aflags = surface_flags & (SDL_SRCALPHA | SDL_RLEACCELOK);
slouken@1895
  1614
        if (fmt->Amask) {
slouken@1895
  1615
            surface->flags |= SDL_SRCALPHA;
slouken@1895
  1616
        } else {
slouken@1895
  1617
            SDL_SetAlpha(surface, aflags, alpha);
slouken@1895
  1618
        }
slouken@1895
  1619
    }
slouken@1895
  1620
slouken@1895
  1621
    /* Update the texture */
slouken@1895
  1622
    if (dst.flags & SDL_PREALLOC) {
slouken@1895
  1623
        SDL_UnlockTexture(textureID);
slouken@1895
  1624
    } else {
slouken@1895
  1625
        SDL_UpdateTexture(textureID, NULL, dst.pixels, dst.pitch);
slouken@1895
  1626
        SDL_free(dst.pixels);
slouken@1895
  1627
    }
slouken@1895
  1628
    SDL_FreeFormat(dst.format);
slouken@1895
  1629
slouken@1895
  1630
    return textureID;
slouken@1895
  1631
}
slouken@1895
  1632
slouken@1895
  1633
static __inline__ SDL_Texture *
slouken@1895
  1634
SDL_GetTextureFromID(SDL_TextureID textureID)
slouken@1895
  1635
{
slouken@1895
  1636
    int hash;
slouken@1895
  1637
    SDL_Texture *texture;
slouken@1895
  1638
slouken@1895
  1639
    if (!_this) {
slouken@1895
  1640
        return NULL;
slouken@1895
  1641
    }
slouken@1895
  1642
slouken@1895
  1643
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1644
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@1895
  1645
         texture = texture->next) {
slouken@1895
  1646
        if (texture->id == textureID) {
slouken@1895
  1647
            return texture;
slouken@1895
  1648
        }
slouken@1895
  1649
    }
slouken@1895
  1650
    return NULL;
slouken@1895
  1651
}
slouken@1895
  1652
slouken@1895
  1653
int
slouken@1895
  1654
SDL_QueryTexture(SDL_TextureID textureID, Uint32 * format, int *access,
slouken@1895
  1655
                 int *w, int *h)
slouken@1895
  1656
{
slouken@1895
  1657
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1658
slouken@1895
  1659
    if (!texture) {
slouken@1895
  1660
        return -1;
slouken@1895
  1661
    }
slouken@1895
  1662
slouken@1895
  1663
    if (format) {
slouken@1895
  1664
        *format = texture->format;
slouken@1895
  1665
    }
slouken@1895
  1666
    if (access) {
slouken@1895
  1667
        *access = texture->access;
slouken@1895
  1668
    }
slouken@1895
  1669
    if (w) {
slouken@1895
  1670
        *w = texture->w;
slouken@1895
  1671
    }
slouken@1895
  1672
    if (h) {
slouken@1895
  1673
        *h = texture->h;
slouken@1895
  1674
    }
slouken@1895
  1675
    return 0;
slouken@1895
  1676
}
slouken@1895
  1677
slouken@1895
  1678
int
slouken@1895
  1679
SDL_QueryTexturePixels(SDL_TextureID textureID, void **pixels, int *pitch)
slouken@1895
  1680
{
slouken@1895
  1681
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1682
    SDL_Renderer *renderer;
slouken@1895
  1683
slouken@1895
  1684
    if (!texture) {
slouken@1895
  1685
        return -1;
slouken@1895
  1686
    }
slouken@1895
  1687
slouken@1895
  1688
    renderer = texture->renderer;
slouken@1895
  1689
    if (!renderer->QueryTexturePixels) {
slouken@1895
  1690
        return -1;
slouken@1895
  1691
    }
slouken@1895
  1692
    return renderer->QueryTexturePixels(renderer, texture, pixels, pitch);
slouken@1895
  1693
}
slouken@1895
  1694
slouken@1895
  1695
int
slouken@1895
  1696
SDL_SetTexturePalette(SDL_TextureID textureID, const SDL_Color * colors,
slouken@1895
  1697
                      int firstcolor, int ncolors)
slouken@1895
  1698
{
slouken@1895
  1699
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1700
    SDL_Renderer *renderer;
slouken@1895
  1701
slouken@1895
  1702
    if (!texture) {
slouken@1895
  1703
        return -1;
slouken@1895
  1704
    }
slouken@1895
  1705
slouken@1895
  1706
    renderer = texture->renderer;
slouken@1895
  1707
    if (!renderer->SetTexturePalette) {
slouken@1895
  1708
        return -1;
slouken@1895
  1709
    }
slouken@1895
  1710
    return renderer->SetTexturePalette(renderer, texture, colors, firstcolor,
slouken@1895
  1711
                                       ncolors);
slouken@1895
  1712
}
slouken@1895
  1713
slouken@1895
  1714
int
slouken@1895
  1715
SDL_GetTexturePalette(SDL_TextureID textureID, SDL_Color * colors,
slouken@1895
  1716
                      int firstcolor, int ncolors)
slouken@1895
  1717
{
slouken@1895
  1718
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1719
    SDL_Renderer *renderer;
slouken@1895
  1720
slouken@1895
  1721
    if (!texture) {
slouken@1895
  1722
        return -1;
slouken@1895
  1723
    }
slouken@1895
  1724
slouken@1895
  1725
    renderer = texture->renderer;
slouken@1895
  1726
    if (!renderer->GetTexturePalette) {
slouken@1895
  1727
        return -1;
slouken@1895
  1728
    }
slouken@1895
  1729
    return renderer->GetTexturePalette(renderer, texture, colors, firstcolor,
slouken@1895
  1730
                                       ncolors);
slouken@1895
  1731
}
slouken@1895
  1732
slouken@1895
  1733
int
slouken@1895
  1734
SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect * rect,
slouken@1895
  1735
                  const void *pixels, int pitch)
slouken@1895
  1736
{
slouken@1895
  1737
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1738
    SDL_Renderer *renderer;
slouken@1895
  1739
    SDL_Rect full_rect;
slouken@1895
  1740
slouken@1895
  1741
    if (!texture) {
slouken@1895
  1742
        return -1;
slouken@1895
  1743
    }
slouken@1895
  1744
slouken@1895
  1745
    renderer = texture->renderer;
slouken@1895
  1746
    if (!renderer->UpdateTexture) {
slouken@1895
  1747
        return -1;
slouken@1895
  1748
    }
slouken@1895
  1749
slouken@1895
  1750
    if (!rect) {
slouken@1895
  1751
        full_rect.x = 0;
slouken@1895
  1752
        full_rect.y = 0;
slouken@1895
  1753
        full_rect.w = texture->w;
slouken@1895
  1754
        full_rect.h = texture->h;
slouken@1895
  1755
        rect = &full_rect;
slouken@1895
  1756
    }
slouken@1895
  1757
slouken@1895
  1758
    return renderer->UpdateTexture(renderer, texture, rect, pixels, pitch);
slouken@1895
  1759
}
slouken@1895
  1760
slouken@1895
  1761
int
slouken@1895
  1762
SDL_LockTexture(SDL_TextureID textureID, const SDL_Rect * rect, int markDirty,
slouken@1895
  1763
                void **pixels, int *pitch)
slouken@1895
  1764
{
slouken@1895
  1765
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1766
    SDL_Renderer *renderer;
slouken@1895
  1767
    SDL_Rect full_rect;
slouken@1895
  1768
slouken@1895
  1769
    if (!texture) {
slouken@1895
  1770
        return -1;
slouken@1895
  1771
    }
slouken@1895
  1772
slouken@1895
  1773
    renderer = texture->renderer;
slouken@1895
  1774
    if (!renderer->LockTexture) {
slouken@1895
  1775
        return -1;
slouken@1895
  1776
    }
slouken@1895
  1777
slouken@1895
  1778
    if (!rect) {
slouken@1895
  1779
        full_rect.x = 0;
slouken@1895
  1780
        full_rect.y = 0;
slouken@1895
  1781
        full_rect.w = texture->w;
slouken@1895
  1782
        full_rect.h = texture->h;
slouken@1895
  1783
        rect = &full_rect;
slouken@1895
  1784
    }
slouken@1895
  1785
slouken@1895
  1786
    return renderer->LockTexture(renderer, texture, rect, markDirty, pixels,
slouken@1895
  1787
                                 pitch);
slouken@1895
  1788
}
slouken@1895
  1789
slouken@1895
  1790
void
slouken@1895
  1791
SDL_UnlockTexture(SDL_TextureID textureID)
slouken@1895
  1792
{
slouken@1895
  1793
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1794
    SDL_Renderer *renderer;
slouken@1895
  1795
slouken@1895
  1796
    if (!texture) {
slouken@1895
  1797
        return;
slouken@1895
  1798
    }
slouken@1895
  1799
slouken@1895
  1800
    renderer = texture->renderer;
slouken@1895
  1801
    if (!renderer->UnlockTexture) {
slouken@1895
  1802
        return;
slouken@1895
  1803
    }
slouken@1895
  1804
    renderer->UnlockTexture(renderer, texture);
slouken@1895
  1805
}
slouken@1895
  1806
slouken@1895
  1807
void
slouken@1895
  1808
SDL_DirtyTexture(SDL_TextureID textureID, int numrects,
slouken@1895
  1809
                 const SDL_Rect * rects)
slouken@1895
  1810
{
slouken@1895
  1811
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1812
    SDL_Renderer *renderer;
slouken@1895
  1813
slouken@1895
  1814
    if (!texture) {
slouken@1895
  1815
        return;
slouken@1895
  1816
    }
slouken@1895
  1817
slouken@1895
  1818
    renderer = texture->renderer;
slouken@1895
  1819
    if (!renderer->DirtyTexture) {
slouken@1895
  1820
        return;
slouken@1895
  1821
    }
slouken@1895
  1822
    renderer->DirtyTexture(renderer, texture, numrects, rects);
slouken@1895
  1823
}
slouken@1895
  1824
slouken@1895
  1825
int
slouken@1895
  1826
SDL_RenderFill(const SDL_Rect * rect, Uint32 color)
slouken@1895
  1827
{
slouken@1895
  1828
    SDL_Renderer *renderer;
slouken@1895
  1829
    SDL_Window *window;
slouken@1895
  1830
    SDL_Rect real_rect;
slouken@1895
  1831
slouken@1895
  1832
    if (!_this) {
slouken@1912
  1833
        SDL_UninitializedVideo();
slouken@1895
  1834
        return -1;
slouken@1895
  1835
    }
slouken@1895
  1836
slouken@1895
  1837
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1838
    if (!renderer || !renderer->RenderFill) {
slouken@1895
  1839
        return -1;
slouken@1895
  1840
    }
slouken@1895
  1841
slouken@1895
  1842
    window = SDL_GetWindowFromID(renderer->window);
slouken@1895
  1843
    real_rect.x = 0;
slouken@1895
  1844
    real_rect.y = 0;
slouken@1895
  1845
    real_rect.w = window->w;
slouken@1895
  1846
    real_rect.h = window->h;
slouken@1895
  1847
    if (rect) {
slouken@1895
  1848
        if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
slouken@1895
  1849
            return 0;
slouken@1895
  1850
        }
slouken@1895
  1851
    }
slouken@1895
  1852
slouken@1897
  1853
    return renderer->RenderFill(renderer, &real_rect, color);
slouken@1895
  1854
}
slouken@1895
  1855
slouken@1895
  1856
int
slouken@1895
  1857
SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect * srcrect,
slouken@1895
  1858
               const SDL_Rect * dstrect, int blendMode, int scaleMode)
slouken@1895
  1859
{
slouken@1895
  1860
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1861
    SDL_Renderer *renderer;
slouken@1895
  1862
    SDL_Window *window;
slouken@1895
  1863
    SDL_Rect real_srcrect;
slouken@1895
  1864
    SDL_Rect real_dstrect;
slouken@1895
  1865
slouken@1895
  1866
    if (!texture || texture->renderer != SDL_CurrentDisplay.current_renderer) {
slouken@1895
  1867
        return -1;
slouken@1895
  1868
    }
slouken@1895
  1869
slouken@1895
  1870
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1871
    if (!renderer || !renderer->RenderCopy) {
slouken@1895
  1872
        return -1;
slouken@1895
  1873
    }
slouken@1895
  1874
slouken@1895
  1875
    window = SDL_GetWindowFromID(renderer->window);
slouken@1897
  1876
    if (srcrect) {
slouken@1897
  1877
        real_srcrect = *srcrect;
slouken@1897
  1878
    } else {
slouken@1897
  1879
        real_srcrect.x = 0;
slouken@1897
  1880
        real_srcrect.y = 0;
slouken@1897
  1881
        real_srcrect.w = texture->w;
slouken@1897
  1882
        real_srcrect.h = texture->h;
slouken@1895
  1883
    }
slouken@1897
  1884
    if (dstrect) {
slouken@1897
  1885
        real_dstrect = *dstrect;
slouken@1897
  1886
    } else {
slouken@1897
  1887
        real_dstrect.x = 0;
slouken@1897
  1888
        real_dstrect.y = 0;
slouken@1897
  1889
        real_dstrect.w = window->w;
slouken@1897
  1890
        real_dstrect.h = window->h;
slouken@1895
  1891
    }
slouken@1895
  1892
slouken@1897
  1893
    return renderer->RenderCopy(renderer, texture, &real_srcrect,
slouken@1897
  1894
                                &real_dstrect, blendMode, scaleMode);
slouken@1895
  1895
}
slouken@1895
  1896
slouken@1895
  1897
void
slouken@1895
  1898
SDL_RenderPresent(void)
slouken@1895
  1899
{
slouken@1895
  1900
    SDL_Renderer *renderer;
slouken@1895
  1901
slouken@1895
  1902
    if (!_this) {
slouken@1912
  1903
        SDL_UninitializedVideo();
slouken@1895
  1904
        return;
slouken@1895
  1905
    }
slouken@1895
  1906
slouken@1895
  1907
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1908
    if (!renderer || !renderer->RenderPresent) {
slouken@1895
  1909
        return;
slouken@1895
  1910
    }
slouken@1895
  1911
    renderer->RenderPresent(renderer);
slouken@1895
  1912
}
slouken@1895
  1913
slouken@1895
  1914
void
slouken@1895
  1915
SDL_DestroyTexture(SDL_TextureID textureID)
slouken@1895
  1916
{
slouken@1895
  1917
    int hash;
slouken@1895
  1918
    SDL_Texture *prev, *texture;
slouken@1895
  1919
    SDL_Renderer *renderer;
slouken@1895
  1920
slouken@1895
  1921
    if (!_this) {
slouken@1912
  1922
        SDL_UninitializedVideo();
slouken@1895
  1923
        return;
slouken@1895
  1924
    }
slouken@1895
  1925
slouken@1895
  1926
    /* Look up the texture in the hash table */
slouken@1895
  1927
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1928
    prev = NULL;
slouken@1895
  1929
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@1895
  1930
         prev = texture, texture = texture->next) {
slouken@1895
  1931
        if (texture->id == textureID) {
slouken@1895
  1932
            break;
slouken@1895
  1933
        }
slouken@1895
  1934
    }
slouken@1895
  1935
    if (!texture) {
slouken@1895
  1936
        return;
slouken@1895
  1937
    }
slouken@1895
  1938
slouken@1895
  1939
    /* Unlink the texture from the list */
slouken@1895
  1940
    if (prev) {
slouken@1895
  1941
        prev->next = texture->next;
slouken@1895
  1942
    } else {
slouken@1895
  1943
        SDL_CurrentDisplay.textures[hash] = texture->next;
slouken@1895
  1944
    }
slouken@1895
  1945
slouken@1895
  1946
    /* Free the texture */
slouken@1895
  1947
    renderer = texture->renderer;
slouken@1895
  1948
    renderer->DestroyTexture(renderer, texture);
slouken@1895
  1949
    SDL_free(texture);
slouken@1895
  1950
}
slouken@1895
  1951
slouken@1895
  1952
void
slouken@1895
  1953
SDL_DestroyRenderer(SDL_WindowID windowID)
slouken@1895
  1954
{
slouken@1895
  1955
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1956
    SDL_Renderer *renderer;
slouken@1895
  1957
    int i;
slouken@1895
  1958
slouken@1895
  1959
    if (!window) {
slouken@1895
  1960
        return;
slouken@1895
  1961
    }
slouken@1895
  1962
slouken@1895
  1963
    renderer = window->renderer;
slouken@1895
  1964
    if (!renderer) {
slouken@1895
  1965
        return;
slouken@1895
  1966
    }
slouken@1895
  1967
slouken@1895
  1968
    /* Free existing textures for this renderer */
slouken@1895
  1969
    for (i = 0; i < SDL_arraysize(SDL_CurrentDisplay.textures); ++i) {
slouken@1895
  1970
        SDL_Texture *texture;
slouken@1895
  1971
        SDL_Texture *prev = NULL;
slouken@1895
  1972
        SDL_Texture *next;
slouken@1895
  1973
        for (texture = SDL_CurrentDisplay.textures[i]; texture;
slouken@1895
  1974
             texture = next) {
slouken@1895
  1975
            next = texture->next;
slouken@1895
  1976
            if (texture->renderer == renderer) {
slouken@1895
  1977
                if (prev) {
slouken@1895
  1978
                    prev->next = next;
slouken@1895
  1979
                } else {
slouken@1895
  1980
                    SDL_CurrentDisplay.textures[i] = next;
slouken@1895
  1981
                }
slouken@1895
  1982
                renderer->DestroyTexture(renderer, texture);
slouken@1895
  1983
                SDL_free(texture);
slouken@1895
  1984
            } else {
slouken@1895
  1985
                prev = texture;
slouken@1895
  1986
            }
slouken@1895
  1987
        }
slouken@1895
  1988
    }
slouken@1895
  1989
slouken@1895
  1990
    /* Free the renderer instance */
slouken@1895
  1991
    renderer->DestroyRenderer(renderer);
slouken@1895
  1992
slouken@1895
  1993
    /* Clear references */
slouken@1895
  1994
    window->renderer = NULL;
slouken@1895
  1995
    if (SDL_CurrentDisplay.current_renderer == renderer) {
slouken@1895
  1996
        SDL_CurrentDisplay.current_renderer = NULL;
slouken@1895
  1997
    }
slouken@1895
  1998
}
slouken@1895
  1999
slouken@1895
  2000
void
slouken@1895
  2001
SDL_VideoQuit(void)
slouken@1895
  2002
{
slouken@1895
  2003
    int i, j;
slouken@1895
  2004
slouken@1895
  2005
    if (!_this) {
slouken@1895
  2006
        return;
slouken@1895
  2007
    }
slouken@1895
  2008
slouken@1895
  2009
    /* Halt event processing before doing anything else */
slouken@1895
  2010
    SDL_StopEventLoop();
slouken@1895
  2011
slouken@1895
  2012
    /* Clean up the system video */
slouken@1895
  2013
    for (i = _this->num_displays; i--;) {
slouken@1895
  2014
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  2015
        for (j = display->num_windows; j--;) {
slouken@1895
  2016
            SDL_DestroyWindow(display->windows[i].id);
slouken@1895
  2017
        }
slouken@1895
  2018
        if (display->windows) {
slouken@1895
  2019
            SDL_free(display->windows);
slouken@1895
  2020
            display->windows = NULL;
slouken@1895
  2021
        }
slouken@1895
  2022
        display->num_windows = 0;
slouken@1895
  2023
    }
slouken@1895
  2024
    _this->VideoQuit(_this);
slouken@1895
  2025
slouken@1895
  2026
    for (i = _this->num_displays; i--;) {
slouken@1895
  2027
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  2028
        for (j = display->num_display_modes; j--;) {
slouken@1895
  2029
            if (display->display_modes[j].driverdata) {
slouken@1895
  2030
                SDL_free(display->display_modes[j].driverdata);
slouken@1895
  2031
                display->display_modes[j].driverdata = NULL;
slouken@1895
  2032
            }
slouken@1895
  2033
        }
slouken@1895
  2034
        if (display->display_modes) {
slouken@1895
  2035
            SDL_free(display->display_modes);
slouken@1895
  2036
            display->display_modes = NULL;
slouken@1895
  2037
        }
slouken@1895
  2038
        if (display->desktop_mode.driverdata) {
slouken@1895
  2039
            SDL_free(display->desktop_mode.driverdata);
slouken@1895
  2040
            display->desktop_mode.driverdata = NULL;
slouken@1895
  2041
        }
slouken@1895
  2042
        if (display->palette) {
slouken@1895
  2043
            SDL_FreePalette(display->palette);
slouken@1895
  2044
            display->palette = NULL;
slouken@1895
  2045
        }
slouken@1895
  2046
        if (display->gamma) {
slouken@1895
  2047
            SDL_free(display->gamma);
slouken@1895
  2048
        }
slouken@1895
  2049
        if (display->driverdata) {
slouken@1895
  2050
            SDL_free(display->driverdata);
slouken@1895
  2051
        }
slouken@1895
  2052
    }
slouken@1895
  2053
    if (_this->displays) {
slouken@1895
  2054
        SDL_free(_this->displays);
slouken@1895
  2055
        _this->displays = NULL;
slouken@1895
  2056
    }
slouken@1895
  2057
    _this->free(_this);
slouken@1895
  2058
    _this = NULL;
slouken@0
  2059
}
slouken@0
  2060
slouken@1895
  2061
int
slouken@1895
  2062
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2063
{
slouken@1895
  2064
    int retval;
slouken@0
  2065
slouken@1912
  2066
    if (!_this) {
slouken@1912
  2067
        SDL_UninitializedVideo();
slouken@1912
  2068
        return -1;
slouken@1912
  2069
    }
slouken@1912
  2070
slouken@1912
  2071
    if (_this->GL_LoadLibrary) {
slouken@1912
  2072
        retval = _this->GL_LoadLibrary(_this, path);
slouken@1895
  2073
    } else {
slouken@1912
  2074
        SDL_SetError("No dynamic GL support in video driver");
slouken@1912
  2075
        retval = -1;
slouken@1895
  2076
    }
slouken@1895
  2077
    return (retval);
slouken@0
  2078
}
slouken@0
  2079
slouken@1895
  2080
void *
slouken@1895
  2081
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2082
{
slouken@1895
  2083
    void *func;
slouken@0
  2084
slouken@1912
  2085
    if (!_this) {
slouken@1912
  2086
        SDL_UninitializedVideo();
slouken@1912
  2087
        return NULL;
slouken@1912
  2088
    }
slouken@1912
  2089
slouken@1895
  2090
    func = NULL;
slouken@1895
  2091
    if (_this->GL_GetProcAddress) {
slouken@1895
  2092
        if (_this->gl_config.driver_loaded) {
slouken@1895
  2093
            func = _this->GL_GetProcAddress(_this, proc);
slouken@1895
  2094
        } else {
slouken@1895
  2095
            SDL_SetError("No GL driver has been loaded");
slouken@1895
  2096
        }
slouken@1895
  2097
    } else {
slouken@1895
  2098
        SDL_SetError("No dynamic GL support in video driver");
slouken@1895
  2099
    }
slouken@1895
  2100
    return func;
slouken@0
  2101
}
slouken@0
  2102
slouken@1926
  2103
SDL_bool
slouken@1926
  2104
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2105
{
slouken@1926
  2106
#if SDL_VIDEO_OPENGL
slouken@1926
  2107
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@1926
  2108
    const char *extensions;
slouken@1926
  2109
    const char *start;
slouken@1926
  2110
    const char *where, *terminator;
slouken@1926
  2111
slouken@1926
  2112
    /* Extension names should not have spaces. */
slouken@1926
  2113
    where = SDL_strchr(extension, ' ');
slouken@1926
  2114
    if (where || *extension == '\0') {
slouken@1926
  2115
        return SDL_FALSE;
slouken@1926
  2116
    }
slouken@1926
  2117
slouken@1926
  2118
    /* See if there's an environment variable override */
slouken@1926
  2119
    start = SDL_getenv(extension);
slouken@1926
  2120
    if (start && *start == '0') {
slouken@1926
  2121
        return SDL_FALSE;
slouken@1926
  2122
    }
slouken@1926
  2123
slouken@1926
  2124
    /* Lookup the available extensions */
slouken@1926
  2125
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@1926
  2126
    if (glGetStringFunc) {
slouken@1926
  2127
        extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@1926
  2128
    } else {
slouken@1926
  2129
        extensions = NULL;
slouken@1926
  2130
    }
slouken@1926
  2131
    if (!extensions) {
slouken@1926
  2132
        return SDL_FALSE;
slouken@1926
  2133
    }
slouken@1926
  2134
slouken@1926
  2135
    /* It takes a bit of care to be fool-proof about parsing the
slouken@1926
  2136
     * OpenGL extensions string. Don't be fooled by sub-strings,
slouken@1926
  2137
     * etc. */
slouken@1926
  2138
slouken@1926
  2139
    start = extensions;
slouken@1926
  2140
slouken@1926
  2141
    for (;;) {
slouken@1926
  2142
        where = SDL_strstr(start, extension);
slouken@1926
  2143
        if (!where)
slouken@1926
  2144
            break;
slouken@1926
  2145
slouken@1926
  2146
        terminator = where + SDL_strlen(extension);
slouken@1926
  2147
        if (where == start || *(where - 1) == ' ')
slouken@1926
  2148
            if (*terminator == ' ' || *terminator == '\0')
slouken@1926
  2149
                return SDL_TRUE;
slouken@1926
  2150
slouken@1926
  2151
        start = terminator;
slouken@1926
  2152
    }
slouken@1926
  2153
    return SDL_FALSE;
slouken@1926
  2154
#else
slouken@1926
  2155
    return SDL_FALSE;
slouken@1926
  2156
#endif
slouken@1926
  2157
}
slouken@1926
  2158
slouken@1895
  2159
int
slouken@1895
  2160
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2161
{
slouken@1936
  2162
#if SDL_VIDEO_OPENGL
slouken@1895
  2163
    int retval;
slouken@0
  2164
slouken@1912
  2165
    if (!_this) {
slouken@1912
  2166
        SDL_UninitializedVideo();
slouken@1912
  2167
        return -1;
slouken@1912
  2168
    }
slouken@1912
  2169
slouken@1895
  2170
    retval = 0;
slouken@1895
  2171
    switch (attr) {
slouken@1895
  2172
    case SDL_GL_RED_SIZE:
slouken@1895
  2173
        _this->gl_config.red_size = value;
slouken@1895
  2174
        break;
slouken@1895
  2175
    case SDL_GL_GREEN_SIZE:
slouken@1895
  2176
        _this->gl_config.green_size = value;
slouken@1895
  2177
        break;
slouken@1895
  2178
    case SDL_GL_BLUE_SIZE:
slouken@1895
  2179
        _this->gl_config.blue_size = value;
slouken@1895
  2180
        break;
slouken@1895
  2181
    case SDL_GL_ALPHA_SIZE:
slouken@1895
  2182
        _this->gl_config.alpha_size = value;
slouken@1895
  2183
        break;
slouken@1895
  2184
    case SDL_GL_DOUBLEBUFFER:
slouken@1895
  2185
        _this->gl_config.double_buffer = value;
slouken@1895
  2186
        break;
slouken@1895
  2187
    case SDL_GL_BUFFER_SIZE:
slouken@1895
  2188
        _this->gl_config.buffer_size = value;
slouken@1895
  2189
        break;
slouken@1895
  2190
    case SDL_GL_DEPTH_SIZE:
slouken@1895
  2191
        _this->gl_config.depth_size = value;
slouken@1895
  2192
        break;
slouken@1895
  2193
    case SDL_GL_STENCIL_SIZE:
slouken@1895
  2194
        _this->gl_config.stencil_size = value;
slouken@1895
  2195
        break;
slouken@1895
  2196
    case SDL_GL_ACCUM_RED_SIZE:
slouken@1895
  2197
        _this->gl_config.accum_red_size = value;
slouken@1895
  2198
        break;
slouken@1895
  2199
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@1895
  2200
        _this->gl_config.accum_green_size = value;
slouken@1895
  2201
        break;
slouken@1895
  2202
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@1895
  2203
        _this->gl_config.accum_blue_size = value;
slouken@1895
  2204
        break;
slouken@1895
  2205
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@1895
  2206
        _this->gl_config.accum_alpha_size = value;
slouken@1895
  2207
        break;
slouken@1895
  2208
    case SDL_GL_STEREO:
slouken@1895
  2209
        _this->gl_config.stereo = value;
slouken@1895
  2210
        break;
slouken@1895
  2211
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@1895
  2212
        _this->gl_config.multisamplebuffers = value;
slouken@1895
  2213
        break;
slouken@1895
  2214
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@1895
  2215
        _this->gl_config.multisamplesamples = value;
slouken@1895
  2216
        break;
slouken@1895
  2217
    case SDL_GL_ACCELERATED_VISUAL:
slouken@1895
  2218
        _this->gl_config.accelerated = value;
slouken@1895
  2219
        break;
slouken@1895
  2220
    default:
slouken@1895
  2221
        SDL_SetError("Unknown OpenGL attribute");
slouken@1895
  2222
        retval = -1;
slouken@1895
  2223
        break;
slouken@1895
  2224
    }
slouken@1912
  2225
    return retval;
slouken@1936
  2226
#else
slouken@1936
  2227
    SDL_Unsupported();
slouken@1936
  2228
    return -1;
slouken@1936
  2229
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2230
}
slouken@0
  2231
slouken@1895
  2232
int
slouken@1936
  2233
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2234
{
slouken@1936
  2235
#if SDL_VIDEO_OPENGL
slouken@1936
  2236
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@1936
  2237
    GLenum attrib = 0;
slouken@1912
  2238
slouken@1936
  2239
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@1936
  2240
    if (!glGetIntegervFunc) {
slouken@1936
  2241
        return -1;
slouken@1936
  2242
    }
slouken@1936
  2243
    switch (attr) {
slouken@1936
  2244
    case SDL_GL_RED_SIZE:
slouken@1936
  2245
        attrib = GL_RED_BITS;
slouken@1936
  2246
        break;
slouken@1936
  2247
    case SDL_GL_BLUE_SIZE:
slouken@1936
  2248
        attrib = GL_BLUE_BITS;
slouken@1936
  2249
        break;
slouken@1936
  2250
    case SDL_GL_GREEN_SIZE:
slouken@1936
  2251
        attrib = GL_GREEN_BITS;
slouken@1936
  2252
        break;
slouken@1936
  2253
    case SDL_GL_ALPHA_SIZE:
slouken@1936
  2254
        attrib = GL_ALPHA_BITS;
slouken@1936
  2255
        break;
slouken@1936
  2256
    case SDL_GL_DOUBLEBUFFER:
slouken@1936
  2257
        attrib = GL_DOUBLEBUFFER;
slouken@1936
  2258
        break;
slouken@1936
  2259
    case SDL_GL_DEPTH_SIZE:
slouken@1936
  2260
        attrib = GL_DEPTH_BITS;
slouken@1936
  2261
        break;
slouken@1936
  2262
    case SDL_GL_STENCIL_SIZE:
slouken@1936
  2263
        attrib = GL_STENCIL_BITS;
slouken@1936
  2264
        break;
slouken@1936
  2265
    case SDL_GL_ACCUM_RED_SIZE:
slouken@1936
  2266
        attrib = GL_ACCUM_RED_BITS;
slouken@1936
  2267
        break;
slouken@1936
  2268
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@1936
  2269
        attrib = GL_ACCUM_GREEN_BITS;
slouken@1936
  2270
        break;
slouken@1936
  2271
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@1936
  2272
        attrib = GL_ACCUM_BLUE_BITS;
slouken@1936
  2273
        break;
slouken@1936
  2274
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@1936
  2275
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@1936
  2276
        break;
slouken@1936
  2277
    case SDL_GL_STEREO:
slouken@1936
  2278
        attrib = GL_STEREO;
slouken@1936
  2279
        break;
slouken@1936
  2280
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@1936
  2281
        attrib = GL_SAMPLE_BUFFERS_ARB;
slouken@1936
  2282
        break;
slouken@1936
  2283
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@1936
  2284
        attrib = GL_SAMPLES_ARB;
slouken@1936
  2285
        break;
slouken@1936
  2286
    case SDL_GL_BUFFER_SIZE:
slouken@1936
  2287
        {
slouken@1936
  2288
            GLint bits = 0;
slouken@1936
  2289
            GLint component;
slouken@1936
  2290
slouken@1936
  2291
            /* there doesn't seem to be a single flag in OpenGL for this! */
slouken@1938
  2292
            glGetIntegervFunc(GL_RED_BITS, &component);
slouken@1936
  2293
            bits += component;
slouken@1938
  2294
            glGetIntegervFunc(GL_GREEN_BITS, &component);
slouken@1936
  2295
            bits += component;
slouken@1938
  2296
            glGetIntegervFunc(GL_BLUE_BITS, &component);
slouken@1936
  2297
            bits += component;
slouken@1938
  2298
            glGetIntegervFunc(GL_ALPHA_BITS, &component);
slouken@1936
  2299
            bits += component;
slouken@1936
  2300
slouken@1936
  2301
            *value = bits;
slouken@1936
  2302
            return 0;
slouken@1936
  2303
        }
slouken@1936
  2304
    case SDL_GL_ACCELERATED_VISUAL:
slouken@1936
  2305
        {
slouken@1936
  2306
            /* FIXME: How do we get this information? */
slouken@1936
  2307
            *value = (_this->gl_config.accelerated != 0);
slouken@1936
  2308
            return 0;
slouken@1936
  2309
        }
slouken@1936
  2310
    default:
slouken@1936
  2311
        SDL_SetError("Unknown OpenGL attribute");
slouken@1912
  2312
        return -1;
slouken@1912
  2313
    }
slouken@0
  2314
slouken@1938
  2315
    glGetIntegervFunc(attrib, (GLint *) value);
slouken@1936
  2316
    return 0;
slouken@1936
  2317
#else
slouken@1936
  2318
    SDL_Unsupported();
slouken@1936
  2319
    return -1;
slouken@1936
  2320
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2321
}
slouken@0
  2322
slouken@1912
  2323
SDL_GLContext
slouken@1912
  2324
SDL_GL_CreateContext(SDL_WindowID windowID)
slouken@1912
  2325
{
slouken@1912
  2326
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2327
slouken@1912
  2328
    if (!window) {
slouken@1912
  2329
        return NULL;
slouken@1912
  2330
    }
slouken@1912
  2331
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@1912
  2332
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@1912
  2333
        return NULL;
slouken@1912
  2334
    }
slouken@1912
  2335
    return _this->GL_CreateContext(_this, window);
slouken@1912
  2336
}
slouken@1912
  2337
slouken@1912
  2338
int
slouken@1912
  2339
SDL_GL_MakeCurrent(SDL_WindowID windowID, SDL_GLContext context)
slouken@1912
  2340
{
slouken@1912
  2341
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2342
slouken@1913
  2343
    if (window && !(window->flags & SDL_WINDOW_OPENGL)) {
slouken@1912
  2344
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@1912
  2345
        return -1;
slouken@1912
  2346
    }
slouken@1936
  2347
    if (!context) {
slouken@1936
  2348
        window = NULL;
slouken@1936
  2349
    }
slouken@1912
  2350
    return _this->GL_MakeCurrent(_this, window, context);
slouken@1912
  2351
}
slouken@1912
  2352
slouken@1912
  2353
int
slouken@1912
  2354
SDL_GL_SetSwapInterval(int interval)
slouken@1912
  2355
{
slouken@1912
  2356
    if (!_this) {
slouken@1912
  2357
        SDL_UninitializedVideo();
slouken@1912
  2358
        return -1;
slouken@1912
  2359
    }
slouken@1912
  2360
slouken@1912
  2361
    if (_this->GL_SetSwapInterval) {
slouken@1912
  2362
        return _this->GL_SetSwapInterval(_this, interval);
slouken@1912
  2363
    } else {
slouken@1912
  2364
        SDL_SetError("Setting the swap interval is not supported");
slouken@1912
  2365
        return -1;
slouken@1912
  2366
    }
slouken@1912
  2367
}
slouken@1912
  2368
slouken@1912
  2369
int
slouken@1912
  2370
SDL_GL_GetSwapInterval(void)
slouken@1912
  2371
{
slouken@1912
  2372
    if (!_this) {
slouken@1912
  2373
        SDL_UninitializedVideo();
slouken@1912
  2374
        return -1;
slouken@1912
  2375
    }
slouken@1912
  2376
slouken@1912
  2377
    if (_this->GL_GetSwapInterval) {
slouken@1912
  2378
        return _this->GL_GetSwapInterval(_this);
slouken@1912
  2379
    } else {
slouken@1912
  2380
        SDL_SetError("Getting the swap interval is not supported");
slouken@1912
  2381
        return -1;
slouken@1912
  2382
    }
slouken@1912
  2383
}
slouken@1912
  2384
slouken@1895
  2385
void
slouken@1912
  2386
SDL_GL_SwapWindow(SDL_WindowID windowID)
slouken@0
  2387
{
slouken@1912
  2388
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2389
slouken@1912
  2390
    if (!window) {
slouken@1912
  2391
        return;
slouken@1912
  2392
    }
slouken@1912
  2393
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@1912
  2394
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@1912
  2395
        return;
slouken@1912
  2396
    }
slouken@1930
  2397
    _this->GL_SwapWindow(_this, window);
slouken@1912
  2398
}
slouken@1912
  2399
slouken@1912
  2400
void
slouken@1912
  2401
SDL_GL_DeleteContext(SDL_GLContext context)
slouken@1912
  2402
{
slouken@1912
  2403
    if (!_this || !context) {
slouken@1912
  2404
        return;
slouken@1912
  2405
    }
slouken@1936
  2406
    _this->GL_MakeCurrent(_this, NULL, NULL);
slouken@1912
  2407
    _this->GL_DeleteContext(_this, context);
slouken@0
  2408
}
slouken@0
  2409
slouken@1895
  2410
#if 0                           // FIXME
slouken@541
  2411
/* Utility function used by SDL_WM_SetIcon();
slouken@541
  2412
 * flags & 1 for color key, flags & 2 for alpha channel. */
slouken@1895
  2413
static void
slouken@1895
  2414
CreateMaskFromColorKeyOrAlpha(SDL_Surface * icon, Uint8 * mask, int flags)
slouken@0
  2415
{
slouken@1895
  2416
    int x, y;
slouken@1895
  2417
    Uint32 colorkey;
slouken@0
  2418
#define SET_MASKBIT(icon, x, y, mask) \
slouken@0
  2419
	mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8)))
slouken@0
  2420
slouken@1895
  2421
    colorkey = icon->format->colorkey;
slouken@1895
  2422
    switch (icon->format->BytesPerPixel) {
slouken@1895
  2423
    case 1:
slouken@1895
  2424
        {
slouken@1895
  2425
            Uint8 *pixels;
slouken@1895
  2426
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2427
                pixels = (Uint8 *) icon->pixels + y * icon->pitch;
slouken@1895
  2428
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2429
                    if (*pixels++ == colorkey) {
slouken@1895
  2430
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2431
                    }
slouken@1895
  2432
                }
slouken@1895
  2433
            }
slouken@1895
  2434
        }
slouken@1895
  2435
        break;
slouken@0
  2436
slouken@1895
  2437
    case 2:
slouken@1895
  2438
        {
slouken@1895
  2439
            Uint16 *pixels;
slouken@1895
  2440
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2441
                pixels = (Uint16 *) icon->pixels + y * icon->pitch / 2;
slouken@1895
  2442
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2443
                    if ((flags & 1) && *pixels == colorkey) {
slouken@1895
  2444
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2445
                    } else if ((flags & 2)
slouken@1895
  2446
                               && (*pixels & icon->format->Amask) == 0) {
slouken@1895
  2447
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2448
                    }
slouken@1895
  2449
                    pixels++;
slouken@1895
  2450
                }
slouken@1895
  2451
            }
slouken@1895
  2452
        }
slouken@1895
  2453
        break;
slouken@0
  2454
slouken@1895
  2455
    case 4:
slouken@1895
  2456
        {
slouken@1895
  2457
            Uint32 *pixels;
slouken@1895
  2458
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2459
                pixels = (Uint32 *) icon->pixels + y * icon->pitch / 4;
slouken@1895
  2460
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2461
                    if ((flags & 1) && *pixels == colorkey) {
slouken@1895
  2462
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2463
                    } else if ((flags & 2)
slouken@1895
  2464
                               && (*pixels & icon->format->Amask) == 0) {
slouken@1895
  2465
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2466
                    }
slouken@1895
  2467
                    pixels++;
slouken@1895
  2468
                }
slouken@1895
  2469
            }
slouken@1895
  2470
        }
slouken@1895
  2471
        break;
slouken@1895
  2472
    }
slouken@0
  2473
}
slouken@0
  2474
slouken@0
  2475
/*
slouken@0
  2476
 * Sets the window manager icon for the display window.
slouken@0
  2477
 */
slouken@1895
  2478
void
slouken@1895
  2479
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
slouken@0
  2480
{
slouken@1895
  2481
    if (icon && _this->SetIcon) {
slouken@1895
  2482
        /* Generate a mask if necessary, and create the icon! */
slouken@1895
  2483
        if (mask == NULL) {
slouken@1895
  2484
            int mask_len = icon->h * (icon->w + 7) / 8;
slouken@1895
  2485
            int flags = 0;
slouken@1895
  2486
            mask = (Uint8 *) SDL_malloc(mask_len);
slouken@1895
  2487
            if (mask == NULL) {
slouken@1895
  2488
                return;
slouken@1895
  2489
            }
slouken@1895
  2490
            SDL_memset(mask, ~0, mask_len);
slouken@1895
  2491
            if (icon->flags & SDL_SRCCOLORKEY)
slouken@1895
  2492
                flags |= 1;
slouken@1895
  2493
            if (icon->flags & SDL_SRCALPHA)
slouken@1895
  2494
                flags |= 2;
slouken@1895
  2495
            if (flags) {
slouken@1895
  2496
                CreateMaskFromColorKeyOrAlpha(icon, mask, flags);
slouken@1895
  2497
            }
slouken@1895
  2498
            _this->SetIcon(_this, icon, mask);
slouken@1895
  2499
            SDL_free(mask);
slouken@1895
  2500
        } else {
slouken@1895
  2501
            _this->SetIcon(_this, icon, mask);
slouken@1895
  2502
        }
slouken@1895
  2503
    }
slouken@1895
  2504
}
slouken@1895
  2505
#endif
slouken@0
  2506
slouken@1895
  2507
SDL_bool
slouken@1895
  2508
SDL_GetWindowWMInfo(SDL_WindowID windowID, struct SDL_SysWMinfo *info)
slouken@1895
  2509
{
slouken@1895
  2510
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  2511
slouken@1895
  2512
    if (!window || !_this->GetWindowWMInfo) {
slouken@1895
  2513
        return SDL_FALSE;
slouken@1895
  2514
    }
slouken@1895
  2515
    return (_this->GetWindowWMInfo(_this, window, info));
slouken@0
  2516
}
slouken@0
  2517
slouken@1895
  2518
/* vi: set ts=4 sw=4 expandtab: */