src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Fri, 28 Jul 2006 08:43:17 +0000
changeset 1952 420716272158
parent 1945 3182150b470f
child 1956 ba0d62354872
permissions -rw-r--r--
Implemented X11 OpenGL support.
Added support for the SDL_VIDEO_OPENGL environment variable.
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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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   387
        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@1895
   617
            SDL_SetWindowPosition(window->id,
slouken@1895
   618
                                  ((display_mode.w - window->w) / 2),
slouken@1895
   619
                                  ((display_mode.h - window->h) / 2));
slouken@1895
   620
        }
slouken@1895
   621
    }
slouken@1895
   622
slouken@1895
   623
    return 0;
slouken@0
   624
}
slouken@0
   625
slouken@1895
   626
int
slouken@1895
   627
SDL_SetFullscreenDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   628
{
slouken@1895
   629
    SDL_VideoDisplay *display;
slouken@1895
   630
    int i;
slouken@0
   631
slouken@1895
   632
    if (!_this) {
slouken@1912
   633
        SDL_UninitializedVideo();
slouken@1895
   634
        return -1;
slouken@1895
   635
    }
slouken@0
   636
slouken@1895
   637
    display = &SDL_CurrentDisplay;
slouken@1895
   638
    if (mode) {
slouken@1895
   639
        SDL_GetClosestDisplayMode(mode, &display->desired_mode);
slouken@1895
   640
        display->fullscreen_mode = &display->desired_mode;
slouken@1895
   641
    } else {
slouken@1895
   642
        display->fullscreen_mode = NULL;
slouken@1895
   643
    }
slouken@1895
   644
slouken@1895
   645
    /* Actually set the mode if we have a fullscreen window visible */
slouken@1895
   646
    for (i = 0; i < display->num_windows; ++i) {
slouken@1895
   647
        SDL_Window *window = &display->windows[i];
slouken@1895
   648
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
   649
            return SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
   650
        }
slouken@1895
   651
    }
slouken@1895
   652
    return 0;
slouken@0
   653
}
slouken@0
   654
slouken@1895
   655
const SDL_DisplayMode *
slouken@1895
   656
SDL_GetFullscreenDisplayMode(void)
slouken@0
   657
{
slouken@1895
   658
    if (_this) {
slouken@1895
   659
        return SDL_CurrentDisplay.fullscreen_mode;
slouken@1895
   660
    }
slouken@1895
   661
    return NULL;
slouken@0
   662
}
slouken@0
   663
slouken@1895
   664
int
slouken@1895
   665
SDL_SetDisplayPalette(const SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   666
{
slouken@1895
   667
    SDL_Palette *palette;
slouken@1895
   668
    int status = 0;
slouken@0
   669
slouken@1895
   670
    if (!_this) {
slouken@1912
   671
        SDL_UninitializedVideo();
slouken@1895
   672
        return -1;
slouken@1895
   673
    }
slouken@1895
   674
    palette = SDL_CurrentDisplay.palette;
slouken@1895
   675
    if (!palette) {
slouken@1895
   676
        SDL_SetError("Display mode does not have a palette");
slouken@1895
   677
        return -1;
slouken@1895
   678
    }
slouken@0
   679
slouken@1895
   680
    status = SDL_SetPaletteColors(palette, colors, firstcolor, ncolors);
slouken@0
   681
slouken@1895
   682
    if (_this->SetDisplayPalette) {
slouken@1895
   683
        if (_this->SetDisplayPalette(_this, palette) < 0) {
slouken@1895
   684
            status = -1;
slouken@1895
   685
        }
slouken@1895
   686
    }
slouken@1895
   687
    return status;
slouken@0
   688
}
slouken@0
   689
slouken@1895
   690
int
slouken@1895
   691
SDL_GetDisplayPalette(SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   692
{
slouken@1895
   693
    SDL_Palette *palette;
slouken@1895
   694
slouken@1895
   695
    if (!_this) {
slouken@1912
   696
        SDL_UninitializedVideo();
slouken@1895
   697
        return -1;
slouken@1895
   698
    }
slouken@1895
   699
slouken@1895
   700
    palette = SDL_CurrentDisplay.palette;
slouken@1895
   701
    if (!palette->ncolors) {
slouken@1895
   702
        SDL_SetError("Display mode does not have a palette");
slouken@1895
   703
        return -1;
slouken@1895
   704
    }
slouken@1895
   705
slouken@1895
   706
    if (firstcolor < 0 || (firstcolor + ncolors) > palette->ncolors) {
slouken@1895
   707
        SDL_SetError("Palette indices are out of range");
slouken@1895
   708
        return -1;
slouken@1895
   709
    }
slouken@1895
   710
slouken@1895
   711
    SDL_memcpy(colors, &palette->colors[firstcolor],
slouken@1895
   712
               ncolors * sizeof(*colors));
slouken@1895
   713
    return 0;
slouken@0
   714
}
slouken@0
   715
slouken@1895
   716
SDL_WindowID
slouken@1895
   717
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
   718
{
slouken@1895
   719
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@1895
   720
                                  SDL_WINDOW_OPENGL |
slouken@1895
   721
                                  SDL_WINDOW_SHOWN |
slouken@1895
   722
                                  SDL_WINDOW_BORDERLESS |
slouken@1895
   723
                                  SDL_WINDOW_RESIZABLE |
slouken@1895
   724
                                  SDL_WINDOW_MAXIMIZED |
slouken@1895
   725
                                  SDL_WINDOW_MINIMIZED |
slouken@1895
   726
                                  SDL_WINDOW_INPUT_GRABBED);
slouken@1895
   727
    SDL_VideoDisplay *display;
slouken@1895
   728
    SDL_Window window;
slouken@1895
   729
    int num_windows;
slouken@1895
   730
    SDL_Window *windows;
slouken@0
   731
slouken@1895
   732
    if (!_this) {
slouken@1912
   733
        SDL_UninitializedVideo();
slouken@1912
   734
        return 0;
slouken@1912
   735
    }
slouken@1912
   736
slouken@1912
   737
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@1912
   738
        SDL_SetError("No OpenGL support in video driver");
slouken@1895
   739
        return 0;
slouken@1895
   740
    }
slouken@0
   741
slouken@1895
   742
    SDL_zero(window);
slouken@1895
   743
    window.id = _this->next_object_id++;
slouken@1895
   744
    window.title = title ? SDL_strdup(title) : NULL;
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
        if (window.title) {
slouken@1895
   754
            SDL_free(window.title);
slouken@1895
   755
        }
slouken@1895
   756
        return 0;
slouken@1895
   757
    }
slouken@0
   758
slouken@1895
   759
    display = &SDL_CurrentDisplay;
slouken@1895
   760
    num_windows = display->num_windows;
slouken@1895
   761
    windows =
slouken@1895
   762
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@1895
   763
    if (!windows) {
slouken@1895
   764
        if (_this->DestroyWindow) {
slouken@1895
   765
            _this->DestroyWindow(_this, &window);
slouken@1895
   766
        }
slouken@1895
   767
        if (window.title) {
slouken@1895
   768
            SDL_free(window.title);
slouken@1895
   769
        }
slouken@1895
   770
        return 0;
slouken@1895
   771
    }
slouken@1895
   772
    windows[num_windows] = window;
slouken@1895
   773
    display->windows = windows;
slouken@1895
   774
    display->num_windows++;
slouken@0
   775
slouken@1895
   776
    if (FULLSCREEN_VISIBLE(&window)) {
slouken@1895
   777
        /* Hide any other fullscreen windows */
slouken@1895
   778
        int i;
slouken@1895
   779
        for (i = 0; i < display->num_windows; ++i) {
slouken@1895
   780
            SDL_Window *other = &display->windows[i];
slouken@1895
   781
            if (other->id != window.id && FULLSCREEN_VISIBLE(other)) {
slouken@1895
   782
                SDL_MinimizeWindow(other->id);
slouken@1895
   783
            }
slouken@1895
   784
        }
slouken@1895
   785
        SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
   786
    }
slouken@0
   787
slouken@1895
   788
    return window.id;
slouken@1895
   789
}
slouken@0
   790
slouken@1895
   791
SDL_WindowID
slouken@1895
   792
SDL_CreateWindowFrom(const void *data)
slouken@1895
   793
{
slouken@1895
   794
    SDL_VideoDisplay *display;
slouken@1895
   795
    SDL_Window window;
slouken@1895
   796
    int num_windows;
slouken@1895
   797
    SDL_Window *windows;
slouken@0
   798
slouken@1895
   799
    if (!_this) {
slouken@1912
   800
        SDL_UninitializedVideo();
slouken@1895
   801
        return (0);
slouken@1895
   802
    }
slouken@1895
   803
slouken@1895
   804
    SDL_zero(window);
slouken@1895
   805
    window.id = _this->next_object_id++;
slouken@1895
   806
    window.display = _this->current_display;
slouken@1895
   807
slouken@1895
   808
    if (!_this->CreateWindowFrom ||
slouken@1895
   809
        _this->CreateWindowFrom(_this, &window, data) < 0) {
slouken@1895
   810
        return 0;
slouken@1895
   811
    }
slouken@1895
   812
slouken@1895
   813
    display = &SDL_CurrentDisplay;
slouken@1895
   814
    num_windows = display->num_windows;
slouken@1895
   815
    windows =
slouken@1895
   816
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@1895
   817
    if (!windows) {
slouken@1895
   818
        if (_this->DestroyWindow) {
slouken@1895
   819
            _this->DestroyWindow(_this, &window);
slouken@1895
   820
        }
slouken@1895
   821
        if (window.title) {
slouken@1895
   822
            SDL_free(window.title);
slouken@1895
   823
        }
slouken@1895
   824
        return 0;
slouken@1895
   825
    }
slouken@1895
   826
    windows[num_windows] = window;
slouken@1895
   827
    display->windows = windows;
slouken@1895
   828
    display->num_windows++;
slouken@1895
   829
slouken@1895
   830
    return window.id;
slouken@1895
   831
}
slouken@1895
   832
slouken@1924
   833
int
slouken@1928
   834
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
   835
{
slouken@1928
   836
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@1924
   837
        SDL_SetError("No OpenGL support in video driver");
slouken@1924
   838
        return -1;
slouken@1924
   839
    }
slouken@1924
   840
    if (_this->DestroyWindow) {
slouken@1924
   841
        _this->DestroyWindow(_this, window);
slouken@1924
   842
    }
slouken@1928
   843
    window->flags = flags;
slouken@1924
   844
    return _this->CreateWindow(_this, window);
slouken@1924
   845
}
slouken@1924
   846
slouken@1895
   847
SDL_Window *
slouken@1895
   848
SDL_GetWindowFromID(SDL_WindowID windowID)
slouken@1895
   849
{
slouken@1895
   850
    int i, j;
slouken@1895
   851
slouken@1895
   852
    if (!_this) {
slouken@1912
   853
        SDL_UninitializedVideo();
slouken@1895
   854
        return NULL;
slouken@1895
   855
    }
slouken@1895
   856
slouken@1895
   857
    for (i = 0; i < _this->num_displays; ++i) {
slouken@1895
   858
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
   859
        for (j = 0; j < display->num_windows; ++j) {
slouken@1895
   860
            SDL_Window *window = &display->windows[j];
slouken@1895
   861
            if (window->id == windowID) {
slouken@1895
   862
                return window;
slouken@1895
   863
            }
slouken@1895
   864
        }
slouken@1895
   865
    }
slouken@1895
   866
    return NULL;
slouken@1895
   867
}
slouken@1895
   868
slouken@1895
   869
SDL_VideoDisplay *
slouken@1895
   870
SDL_GetDisplayFromWindow(SDL_Window * window)
slouken@1895
   871
{
slouken@1895
   872
    if (!_this) {
slouken@1912
   873
        SDL_UninitializedVideo();
slouken@1895
   874
        return NULL;
slouken@1895
   875
    }
slouken@1895
   876
    return &_this->displays[window->display];
slouken@1895
   877
}
slouken@1895
   878
slouken@1895
   879
Uint32
slouken@1895
   880
SDL_GetWindowFlags(SDL_WindowID windowID)
slouken@1895
   881
{
slouken@1895
   882
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   883
slouken@1895
   884
    if (!window) {
slouken@1895
   885
        return 0;
slouken@1895
   886
    }
slouken@1895
   887
    return window->flags;
slouken@1895
   888
}
slouken@1895
   889
slouken@1895
   890
void
slouken@1895
   891
SDL_SetWindowTitle(SDL_WindowID windowID, const char *title)
slouken@1895
   892
{
slouken@1895
   893
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   894
slouken@1895
   895
    if (!window) {
slouken@1895
   896
        return;
slouken@1895
   897
    }
slouken@1895
   898
    if (window->title) {
slouken@1895
   899
        SDL_free(window->title);
slouken@1895
   900
    }
slouken@1895
   901
    window->title = SDL_strdup(title);
slouken@1895
   902
slouken@1895
   903
    if (_this->SetWindowTitle) {
slouken@1895
   904
        _this->SetWindowTitle(_this, window);
slouken@1895
   905
    }
slouken@1895
   906
}
slouken@1895
   907
slouken@1895
   908
const char *
slouken@1895
   909
SDL_GetWindowTitle(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 NULL;
slouken@1895
   915
    }
slouken@1895
   916
    return window->title;
slouken@1895
   917
}
slouken@1895
   918
slouken@1895
   919
void
slouken@1895
   920
SDL_SetWindowData(SDL_WindowID windowID, void *userdata)
slouken@1895
   921
{
slouken@1895
   922
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   923
slouken@1895
   924
    if (!window) {
slouken@1895
   925
        return;
slouken@1895
   926
    }
slouken@1895
   927
    window->userdata = userdata;
slouken@1895
   928
}
slouken@1895
   929
slouken@1895
   930
void *
slouken@1895
   931
SDL_GetWindowData(SDL_WindowID windowID)
slouken@1895
   932
{
slouken@1895
   933
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   934
slouken@1895
   935
    if (!window) {
slouken@1895
   936
        return NULL;
slouken@1895
   937
    }
slouken@1895
   938
    return window->userdata;
slouken@1895
   939
}
slouken@1895
   940
slouken@1895
   941
void
slouken@1895
   942
SDL_SetWindowPosition(SDL_WindowID windowID, int x, int y)
slouken@1895
   943
{
slouken@1895
   944
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   945
slouken@1895
   946
    if (!window) {
slouken@1895
   947
        return;
slouken@1895
   948
    }
slouken@1895
   949
slouken@1895
   950
    if (x != SDL_WINDOWPOS_UNDEFINED) {
slouken@1895
   951
        window->x = x;
slouken@1895
   952
    }
slouken@1895
   953
    if (y != SDL_WINDOWPOS_UNDEFINED) {
slouken@1895
   954
        window->y = y;
slouken@1895
   955
    }
slouken@1895
   956
slouken@1895
   957
    if (_this->SetWindowPosition) {
slouken@1895
   958
        _this->SetWindowPosition(_this, window);
slouken@1895
   959
    }
slouken@1895
   960
}
slouken@1895
   961
slouken@1895
   962
void
slouken@1895
   963
SDL_GetWindowPosition(SDL_WindowID windowID, int *x, int *y)
slouken@1895
   964
{
slouken@1895
   965
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   966
slouken@1895
   967
    if (!window) {
slouken@1895
   968
        return;
slouken@1895
   969
    }
slouken@1895
   970
    if (x) {
slouken@1895
   971
        *x = window->x;
slouken@1895
   972
    }
slouken@1895
   973
    if (y) {
slouken@1895
   974
        *y = window->y;
slouken@1895
   975
    }
slouken@1895
   976
}
slouken@1895
   977
slouken@1895
   978
void
slouken@1895
   979
SDL_SetWindowSize(SDL_WindowID windowID, int w, int h)
slouken@1895
   980
{
slouken@1895
   981
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   982
slouken@1895
   983
    if (!window) {
slouken@1895
   984
        return;
slouken@1895
   985
    }
slouken@1895
   986
slouken@1895
   987
    window->w = w;
slouken@1895
   988
    window->h = h;
slouken@1895
   989
slouken@1895
   990
    if (_this->SetWindowSize) {
slouken@1895
   991
        _this->SetWindowSize(_this, window);
slouken@1895
   992
    }
slouken@1895
   993
}
slouken@1895
   994
slouken@1895
   995
void
slouken@1895
   996
SDL_GetWindowSize(SDL_WindowID windowID, int *w, int *h)
slouken@1895
   997
{
slouken@1895
   998
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   999
slouken@1895
  1000
    if (!window) {
slouken@1895
  1001
        return;
slouken@1895
  1002
    }
slouken@1895
  1003
    if (w) {
slouken@1895
  1004
        *w = window->w;
slouken@1895
  1005
    }
slouken@1895
  1006
    if (h) {
slouken@1895
  1007
        *h = window->h;
slouken@1895
  1008
    }
slouken@1895
  1009
}
slouken@1895
  1010
slouken@1895
  1011
void
slouken@1895
  1012
SDL_ShowWindow(SDL_WindowID windowID)
slouken@1895
  1013
{
slouken@1895
  1014
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1015
slouken@1895
  1016
    if (!window || (window->flags & SDL_WINDOW_SHOWN)) {
slouken@1895
  1017
        return;
slouken@1895
  1018
    }
slouken@1895
  1019
slouken@1895
  1020
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1021
slouken@1895
  1022
    if (_this->ShowWindow) {
slouken@1895
  1023
        _this->ShowWindow(_this, window);
slouken@1895
  1024
    }
slouken@1895
  1025
}
slouken@1895
  1026
slouken@1895
  1027
void
slouken@1895
  1028
SDL_HideWindow(SDL_WindowID windowID)
slouken@1895
  1029
{
slouken@1895
  1030
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1031
slouken@1895
  1032
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@1895
  1033
        return;
slouken@1895
  1034
    }
slouken@1895
  1035
slouken@1895
  1036
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1037
slouken@1895
  1038
    if (_this->HideWindow) {
slouken@1895
  1039
        _this->HideWindow(_this, window);
slouken@1895
  1040
    }
slouken@1895
  1041
}
slouken@1895
  1042
slouken@1895
  1043
void
slouken@1895
  1044
SDL_RaiseWindow(SDL_WindowID windowID)
slouken@1895
  1045
{
slouken@1895
  1046
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1047
slouken@1895
  1048
    if (!window) {
slouken@1895
  1049
        return;
slouken@1895
  1050
    }
slouken@1895
  1051
slouken@1895
  1052
    if (_this->RaiseWindow) {
slouken@1895
  1053
        _this->RaiseWindow(_this, window);
slouken@1895
  1054
    }
slouken@1895
  1055
}
slouken@1895
  1056
slouken@1895
  1057
void
slouken@1895
  1058
SDL_MaximizeWindow(SDL_WindowID windowID)
slouken@1895
  1059
{
slouken@1895
  1060
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1061
slouken@1895
  1062
    if (!window || (window->flags & SDL_WINDOW_MAXIMIZED)) {
slouken@1895
  1063
        return;
slouken@1895
  1064
    }
slouken@1895
  1065
slouken@1895
  1066
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@1895
  1067
slouken@1895
  1068
    if (_this->MaximizeWindow) {
slouken@1895
  1069
        _this->MaximizeWindow(_this, window);
slouken@1895
  1070
    }
slouken@1895
  1071
}
slouken@1895
  1072
slouken@1895
  1073
void
slouken@1895
  1074
SDL_MinimizeWindow(SDL_WindowID windowID)
slouken@1895
  1075
{
slouken@1895
  1076
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1077
slouken@1895
  1078
    if (!window || (window->flags & SDL_WINDOW_MINIMIZED)) {
slouken@1895
  1079
        return;
slouken@1895
  1080
    }
slouken@1895
  1081
slouken@1895
  1082
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@1895
  1083
slouken@1895
  1084
    if (_this->MinimizeWindow) {
slouken@1895
  1085
        _this->MinimizeWindow(_this, window);
slouken@1895
  1086
    }
slouken@1895
  1087
}
slouken@1895
  1088
slouken@1895
  1089
void
slouken@1895
  1090
SDL_RestoreWindow(SDL_WindowID windowID)
slouken@1895
  1091
{
slouken@1895
  1092
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1093
slouken@1895
  1094
    if (!window
slouken@1895
  1095
        || (window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@1895
  1096
        return;
slouken@1895
  1097
    }
slouken@1895
  1098
slouken@1895
  1099
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@1895
  1100
slouken@1895
  1101
    if (_this->RestoreWindow) {
slouken@1895
  1102
        _this->RestoreWindow(_this, window);
slouken@1895
  1103
    }
slouken@1895
  1104
}
slouken@1895
  1105
slouken@1895
  1106
int
slouken@1895
  1107
SDL_SetWindowFullscreen(SDL_WindowID windowID, int fullscreen)
slouken@1895
  1108
{
slouken@1895
  1109
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1110
slouken@1895
  1111
    if (!window) {
slouken@1895
  1112
        return -1;
slouken@1895
  1113
    }
slouken@1895
  1114
slouken@1895
  1115
    if (fullscreen) {
slouken@1895
  1116
        fullscreen = SDL_WINDOW_FULLSCREEN;
slouken@1895
  1117
    }
slouken@1895
  1118
    if ((window->flags & SDL_WINDOW_FULLSCREEN) == fullscreen) {
slouken@1895
  1119
        return 0;
slouken@1895
  1120
    }
slouken@1895
  1121
slouken@1895
  1122
    if (fullscreen) {
slouken@1895
  1123
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
  1124
slouken@1895
  1125
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
  1126
            SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1127
slouken@1895
  1128
            /* Hide any other fullscreen windows */
slouken@1895
  1129
            int i;
slouken@1895
  1130
            for (i = 0; i < display->num_windows; ++i) {
slouken@1895
  1131
                SDL_Window *other = &display->windows[i];
slouken@1895
  1132
                if (other->id != windowID && FULLSCREEN_VISIBLE(other)) {
slouken@1895
  1133
                    SDL_MinimizeWindow(other->id);
slouken@1895
  1134
                }
slouken@1895
  1135
            }
slouken@1895
  1136
slouken@1895
  1137
            SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
  1138
        }
slouken@1895
  1139
    } else {
slouken@1895
  1140
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@1895
  1141
slouken@1895
  1142
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
  1143
            SDL_SetDisplayMode(NULL);
slouken@1895
  1144
        }
slouken@1895
  1145
    }
slouken@1895
  1146
    return 0;
slouken@1895
  1147
}
slouken@1895
  1148
slouken@1895
  1149
void
slouken@1895
  1150
SDL_SetWindowGrab(SDL_WindowID windowID, int mode)
slouken@1895
  1151
{
slouken@1895
  1152
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1153
slouken@1895
  1154
    if (!window || (!!mode == !!(window->flags & SDL_WINDOW_INPUT_GRABBED))) {
slouken@1895
  1155
        return;
slouken@1895
  1156
    }
slouken@1895
  1157
slouken@1895
  1158
    if (mode) {
slouken@1895
  1159
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@1895
  1160
    } else {
slouken@1895
  1161
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@1895
  1162
    }
slouken@1895
  1163
slouken@1895
  1164
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@1895
  1165
        _this->SetWindowGrab(_this, window);
slouken@1895
  1166
    }
slouken@1895
  1167
}
slouken@1895
  1168
slouken@1895
  1169
int
slouken@1895
  1170
SDL_GetWindowGrab(SDL_WindowID windowID)
slouken@1895
  1171
{
slouken@1895
  1172
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1173
slouken@1895
  1174
    if (!window) {
slouken@1895
  1175
        return 0;
slouken@1895
  1176
    }
slouken@1895
  1177
slouken@1895
  1178
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1179
}
slouken@1895
  1180
slouken@1895
  1181
void
slouken@1895
  1182
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1183
{
slouken@1895
  1184
}
slouken@1895
  1185
slouken@1895
  1186
void
slouken@1895
  1187
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1188
{
slouken@1895
  1189
}
slouken@1895
  1190
slouken@1895
  1191
void
slouken@1895
  1192
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1193
{
slouken@1895
  1194
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1195
slouken@1895
  1196
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@1895
  1197
        SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
  1198
    }
slouken@1895
  1199
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@1895
  1200
        _this->SetDisplayGammaRamp(_this, display->gamma);
slouken@1895
  1201
    }
slouken@1895
  1202
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) && _this->SetWindowGrab) {
slouken@1895
  1203
        _this->SetWindowGrab(_this, window);
slouken@1895
  1204
    }
slouken@1895
  1205
}
slouken@1895
  1206
slouken@1895
  1207
void
slouken@1895
  1208
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1209
{
slouken@1895
  1210
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1211
slouken@1895
  1212
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@1895
  1213
        SDL_MinimizeWindow(window->id);
slouken@1895
  1214
        SDL_SetDisplayMode(NULL);
slouken@1895
  1215
    }
slouken@1895
  1216
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@1895
  1217
        _this->SetDisplayGammaRamp(_this, display->saved_gamma);
slouken@1895
  1218
    }
slouken@1895
  1219
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) && _this->SetWindowGrab) {
slouken@1895
  1220
        _this->SetWindowGrab(_this, window);
slouken@1895
  1221
    }
slouken@1895
  1222
}
slouken@1895
  1223
slouken@1895
  1224
SDL_WindowID
slouken@1895
  1225
SDL_GetFocusWindow(void)
slouken@1895
  1226
{
slouken@1895
  1227
    SDL_VideoDisplay *display;
slouken@1895
  1228
    int i;
slouken@1895
  1229
slouken@1895
  1230
    if (!_this) {
slouken@1895
  1231
        return 0;
slouken@1895
  1232
    }
slouken@1895
  1233
slouken@1895
  1234
    display = &SDL_CurrentDisplay;
slouken@1895
  1235
    for (i = 0; i < display->num_windows; ++i) {
slouken@1895
  1236
        SDL_Window *window = &display->windows[i];
slouken@1895
  1237
slouken@1895
  1238
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@1895
  1239
            return window->id;
slouken@1895
  1240
        }
slouken@1895
  1241
    }
slouken@1895
  1242
    return 0;
slouken@1895
  1243
}
slouken@1895
  1244
slouken@1895
  1245
void
slouken@1895
  1246
SDL_DestroyWindow(SDL_WindowID windowID)
slouken@1895
  1247
{
slouken@1895
  1248
    int i, j;
slouken@1895
  1249
slouken@1895
  1250
    if (!_this) {
slouken@1895
  1251
        return;
slouken@1895
  1252
    }
slouken@1895
  1253
slouken@1895
  1254
    /* Restore video mode, etc. */
slouken@1895
  1255
    SDL_SendWindowEvent(windowID, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@1895
  1256
slouken@1895
  1257
    for (i = 0; i < _this->num_displays; ++i) {
slouken@1895
  1258
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  1259
        for (j = 0; j < display->num_windows; ++j) {
slouken@1895
  1260
            SDL_Window *window = &display->windows[j];
slouken@1895
  1261
            if (window->id != windowID) {
slouken@1895
  1262
                continue;
slouken@1895
  1263
            }
slouken@1895
  1264
            if (window->renderer) {
slouken@1895
  1265
                SDL_DestroyRenderer(window->id);
slouken@1895
  1266
            }
slouken@1895
  1267
            if (_this->DestroyWindow) {
slouken@1895
  1268
                _this->DestroyWindow(_this, window);
slouken@1895
  1269
            }
slouken@1895
  1270
            if (window->title) {
slouken@1895
  1271
                SDL_free(window->title);
slouken@1895
  1272
            }
slouken@1895
  1273
            if (j != display->num_windows - 1) {
slouken@1895
  1274
                SDL_memcpy(&display->windows[i],
slouken@1895
  1275
                           &display->windows[i + 1],
slouken@1895
  1276
                           (display->num_windows - i - 1) * sizeof(*window));
slouken@1895
  1277
            }
slouken@1895
  1278
            --display->num_windows;
slouken@1895
  1279
            return;
slouken@1895
  1280
        }
slouken@1895
  1281
    }
slouken@1895
  1282
}
slouken@1895
  1283
slouken@1895
  1284
void
slouken@1895
  1285
SDL_AddRenderDriver(int displayIndex, const SDL_RenderDriver * driver)
slouken@1895
  1286
{
slouken@1895
  1287
    SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@1895
  1288
    SDL_RenderDriver *render_drivers;
slouken@1895
  1289
slouken@1895
  1290
    render_drivers =
slouken@1895
  1291
        SDL_realloc(display->render_drivers,
slouken@1895
  1292
                    (display->num_render_drivers +
slouken@1895
  1293
                     1) * sizeof(*render_drivers));
slouken@1895
  1294
    if (render_drivers) {
slouken@1895
  1295
        render_drivers[display->num_render_drivers] = *driver;
slouken@1895
  1296
        display->render_drivers = render_drivers;
slouken@1895
  1297
        display->num_render_drivers++;
slouken@1895
  1298
    }
slouken@1895
  1299
}
slouken@1895
  1300
slouken@1895
  1301
int
slouken@1895
  1302
SDL_GetNumRenderers(void)
slouken@1895
  1303
{
slouken@1895
  1304
    if (_this) {
slouken@1895
  1305
        return SDL_CurrentDisplay.num_render_drivers;
slouken@1895
  1306
    }
slouken@1895
  1307
    return 0;
slouken@1895
  1308
}
slouken@1895
  1309
slouken@1895
  1310
int
slouken@1895
  1311
SDL_GetRendererInfo(int index, SDL_RendererInfo * info)
slouken@1895
  1312
{
slouken@1907
  1313
    if (!_this) {
slouken@1912
  1314
        SDL_UninitializedVideo();
slouken@1907
  1315
        return -1;
slouken@1907
  1316
    }
slouken@1907
  1317
slouken@1907
  1318
    if (index >= SDL_GetNumRenderers()) {
slouken@1895
  1319
        SDL_SetError("index must be in the range of 0 - %d",
slouken@1895
  1320
                     SDL_GetNumRenderers() - 1);
slouken@1895
  1321
        return -1;
slouken@1895
  1322
    }
slouken@1907
  1323
    if (index < 0) {
slouken@1907
  1324
        if (!SDL_CurrentDisplay.current_renderer) {
slouken@1907
  1325
            SDL_SetError("There is no current renderer");
slouken@1907
  1326
            return -1;
slouken@1907
  1327
        }
slouken@1907
  1328
        *info = SDL_CurrentDisplay.current_renderer->info;
slouken@1907
  1329
    } else {
slouken@1907
  1330
        *info = SDL_CurrentDisplay.render_drivers[index].info;
slouken@1907
  1331
    }
slouken@1895
  1332
    return 0;
slouken@1895
  1333
}
slouken@1895
  1334
slouken@1895
  1335
int
slouken@1895
  1336
SDL_CreateRenderer(SDL_WindowID windowID, int index, Uint32 flags)
slouken@1895
  1337
{
slouken@1895
  1338
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1339
slouken@1895
  1340
    if (!window) {
slouken@1895
  1341
        return 0;
slouken@1895
  1342
    }
slouken@1895
  1343
slouken@1895
  1344
    if (index < 0) {
slouken@1905
  1345
        const char *override = SDL_getenv("SDL_VIDEO_RENDERER");
slouken@1895
  1346
        int n = SDL_GetNumRenderers();
slouken@1895
  1347
        for (index = 0; index < n; ++index) {
slouken@1895
  1348
            SDL_RenderDriver *driver =
slouken@1895
  1349
                &SDL_CurrentDisplay.render_drivers[index];
slouken@1895
  1350
slouken@1905
  1351
            if (override) {
slouken@1905
  1352
                if (SDL_strcasecmp(override, driver->info.name) == 0) {
slouken@1905
  1353
                    break;
slouken@1905
  1354
                }
slouken@1905
  1355
            } else {
slouken@1905
  1356
                if ((driver->info.flags & flags) == flags) {
slouken@1905
  1357
                    break;
slouken@1905
  1358
                }
slouken@1895
  1359
            }
slouken@1895
  1360
        }
slouken@1895
  1361
        if (index == n) {
slouken@1895
  1362
            SDL_SetError("Couldn't find matching render driver");
slouken@1895
  1363
            return -1;
slouken@1895
  1364
        }
slouken@1895
  1365
    }
slouken@1895
  1366
slouken@1895
  1367
    if (index >= SDL_GetNumRenderers()) {
slouken@1895
  1368
        SDL_SetError("index must be -1 or in the range of 0 - %d",
slouken@1895
  1369
                     SDL_GetNumRenderers() - 1);
slouken@1895
  1370
        return -1;
slouken@1895
  1371
    }
slouken@1895
  1372
slouken@1895
  1373
    /* Free any existing renderer */
slouken@1895
  1374
    SDL_DestroyRenderer(windowID);
slouken@1895
  1375
slouken@1895
  1376
    /* Create a new renderer instance */
slouken@1895
  1377
    window->renderer =
slouken@1895
  1378
        SDL_CurrentDisplay.render_drivers[index].CreateRenderer(window,
slouken@1895
  1379
                                                                flags);
slouken@1923
  1380
    SDL_SelectRenderer(window->id);
slouken@1895
  1381
slouken@1895
  1382
    return 0;
slouken@1895
  1383
}
slouken@1895
  1384
slouken@1895
  1385
int
slouken@1895
  1386
SDL_SelectRenderer(SDL_WindowID windowID)
slouken@1895
  1387
{
slouken@1895
  1388
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1923
  1389
    SDL_Renderer *renderer;
slouken@1895
  1390
slouken@1895
  1391
    if (!window || !window->renderer) {
slouken@1895
  1392
        return -1;
slouken@1895
  1393
    }
slouken@1923
  1394
    renderer = window->renderer;
slouken@1923
  1395
    if (renderer && renderer->ActivateRenderer) {
slouken@1923
  1396
        if (renderer->ActivateRenderer(renderer) < 0) {
slouken@1923
  1397
            return -1;
slouken@1923
  1398
        }
slouken@1923
  1399
    }
slouken@1923
  1400
    SDL_CurrentDisplay.current_renderer = renderer;
slouken@1895
  1401
    return 0;
slouken@1895
  1402
}
slouken@1895
  1403
slouken@1895
  1404
SDL_TextureID
slouken@1895
  1405
SDL_CreateTexture(Uint32 format, int access, int w, int h)
slouken@1895
  1406
{
slouken@1895
  1407
    int hash;
slouken@1895
  1408
    SDL_Renderer *renderer;
slouken@1895
  1409
    SDL_Texture *texture;
slouken@1895
  1410
slouken@1895
  1411
    if (!_this) {
slouken@1912
  1412
        SDL_UninitializedVideo();
slouken@1895
  1413
        return 0;
slouken@1895
  1414
    }
slouken@1895
  1415
slouken@1895
  1416
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1417
    if (!renderer || !renderer->CreateTexture) {
slouken@1895
  1418
        return 0;
slouken@1895
  1419
    }
slouken@1895
  1420
slouken@1920
  1421
    texture = (SDL_Texture *) SDL_calloc(1, sizeof(*texture));
slouken@1895
  1422
    if (!texture) {
slouken@1895
  1423
        SDL_OutOfMemory();
slouken@1895
  1424
        return 0;
slouken@1895
  1425
    }
slouken@1895
  1426
slouken@1895
  1427
    texture->id = _this->next_object_id++;
slouken@1895
  1428
    texture->format = format;
slouken@1895
  1429
    texture->access = access;
slouken@1895
  1430
    texture->w = w;
slouken@1895
  1431
    texture->h = h;
slouken@1895
  1432
    texture->renderer = renderer;
slouken@1895
  1433
slouken@1895
  1434
    if (renderer->CreateTexture(renderer, texture) < 0) {
slouken@1924
  1435
        if (renderer->DestroyTexture) {
slouken@1924
  1436
            renderer->DestroyTexture(renderer, texture);
slouken@1924
  1437
        }
slouken@1895
  1438
        SDL_free(texture);
slouken@1895
  1439
        return 0;
slouken@1895
  1440
    }
slouken@1895
  1441
slouken@1895
  1442
    hash = (texture->id % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1443
    texture->next = SDL_CurrentDisplay.textures[hash];
slouken@1895
  1444
    SDL_CurrentDisplay.textures[hash] = texture;
slouken@1895
  1445
slouken@1895
  1446
    return texture->id;
slouken@1895
  1447
}
slouken@1895
  1448
slouken@1895
  1449
SDL_TextureID
slouken@1895
  1450
SDL_CreateTextureFromSurface(Uint32 format, int access, SDL_Surface * surface)
slouken@1895
  1451
{
slouken@1895
  1452
    SDL_TextureID textureID;
slouken@1895
  1453
    Uint32 surface_flags = surface->flags;
slouken@1895
  1454
    SDL_PixelFormat *fmt = surface->format;
slouken@1895
  1455
    Uint8 alpha;
slouken@1895
  1456
    SDL_Rect bounds;
slouken@1895
  1457
    SDL_Surface dst;
slouken@1895
  1458
    int bpp;
slouken@1895
  1459
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@1895
  1460
slouken@1895
  1461
    if (!surface) {
slouken@1895
  1462
        SDL_SetError("SDL_CreateTextureFromSurface() passed NULL surface");
slouken@1895
  1463
        return 0;
slouken@1895
  1464
    }
slouken@1895
  1465
slouken@1895
  1466
    if (format) {
slouken@1895
  1467
        if (!SDL_PixelFormatEnumToMasks
slouken@1895
  1468
            (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@1895
  1469
            SDL_SetError("Unknown pixel format");
slouken@1895
  1470
            return 0;
slouken@1895
  1471
        }
slouken@1895
  1472
    } else {
slouken@1895
  1473
        if (fmt->Amask || !(surface_flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA))) {
slouken@1895
  1474
            bpp = fmt->BitsPerPixel;
slouken@1895
  1475
            Rmask = fmt->Rmask;
slouken@1895
  1476
            Gmask = fmt->Gmask;
slouken@1895
  1477
            Bmask = fmt->Bmask;
slouken@1895
  1478
            Amask = fmt->Amask;
slouken@1895
  1479
        } else {
slouken@1895
  1480
            /* Need a format with alpha */
slouken@1895
  1481
            bpp = 32;
slouken@1895
  1482
            Rmask = 0x00FF0000;
slouken@1895
  1483
            Gmask = 0x0000FF00;
slouken@1895
  1484
            Bmask = 0x000000FF;
slouken@1895
  1485
            Amask = 0xFF000000;
slouken@1895
  1486
        }
slouken@1895
  1487
        format = SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
slouken@1895
  1488
        if (!format) {
slouken@1895
  1489
            SDL_SetError("Unknown pixel format");
slouken@1895
  1490
            return 0;
slouken@1895
  1491
        }
slouken@1895
  1492
    }
slouken@1895
  1493
slouken@1895
  1494
    textureID = SDL_CreateTexture(format, access, surface->w, surface->h);
slouken@1895
  1495
    if (!textureID) {
slouken@1895
  1496
        return 0;
slouken@1895
  1497
    }
slouken@1895
  1498
slouken@1895
  1499
    /* Set up a destination surface for the texture update */
slouken@1895
  1500
    SDL_zero(dst);
slouken@1895
  1501
    dst.format = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask);
slouken@1895
  1502
    if (!dst.format) {
slouken@1895
  1503
        SDL_DestroyTexture(textureID);
slouken@1895
  1504
        return 0;
slouken@1895
  1505
    }
slouken@1895
  1506
    dst.w = surface->w;
slouken@1895
  1507
    dst.h = surface->h;
slouken@1895
  1508
    if (SDL_LockTexture(textureID, NULL, 1, &dst.pixels, &dst.pitch) == 0) {
slouken@1895
  1509
        dst.flags |= SDL_PREALLOC;
slouken@1895
  1510
    } else {
slouken@1895
  1511
        dst.pitch = SDL_CalculatePitch(&dst);
slouken@1895
  1512
        dst.pixels = SDL_malloc(dst.h * dst.pitch);
slouken@1895
  1513
        if (!dst.pixels) {
slouken@1895
  1514
            SDL_DestroyTexture(textureID);
slouken@1895
  1515
            SDL_FreeFormat(dst.format);
slouken@1895
  1516
            SDL_OutOfMemory();
slouken@1895
  1517
            return 0;
slouken@1895
  1518
        }
slouken@1895
  1519
    }
slouken@1895
  1520
slouken@1895
  1521
    /* Copy the palette if any */
slouken@1895
  1522
    if (SDL_ISPIXELFORMAT_INDEXED(format)) {
slouken@1895
  1523
        if (fmt->palette) {
slouken@1895
  1524
            SDL_SetTexturePalette(textureID, fmt->palette->colors, 0,
slouken@1895
  1525
                                  fmt->palette->ncolors);
slouken@1895
  1526
            SDL_SetSurfacePalette(&dst, fmt->palette);
slouken@1895
  1527
        } else {
slouken@1895
  1528
            dst.format->palette =
slouken@1895
  1529
                SDL_AllocPalette((1 << SDL_BITSPERPIXEL(format)));
slouken@1895
  1530
            if (!dst.format->palette) {
slouken@1895
  1531
                SDL_DestroyTexture(textureID);
slouken@1895
  1532
                SDL_FreeFormat(dst.format);
slouken@1895
  1533
                return 0;
slouken@1895
  1534
            }
slouken@1895
  1535
            SDL_DitherColors(dst.format->palette->colors,
slouken@1895
  1536
                             SDL_BITSPERPIXEL(format));
slouken@1895
  1537
        }
slouken@1895
  1538
    }
slouken@1895
  1539
slouken@1895
  1540
    /* Make the texture transparent if the surface has colorkey */
slouken@1895
  1541
    if (surface_flags & SDL_SRCCOLORKEY) {
slouken@1895
  1542
        int row;
slouken@1895
  1543
        int length = dst.w * dst.format->BytesPerPixel;
slouken@1895
  1544
        Uint8 *p = (Uint8 *) dst.pixels;
slouken@1895
  1545
        for (row = 0; row < dst.h; ++row) {
slouken@1895
  1546
            SDL_memset(p, 0, length);
slouken@1895
  1547
            p += dst.pitch;
slouken@1895
  1548
        }
slouken@1895
  1549
    }
slouken@1895
  1550
slouken@1895
  1551
    /* Copy over the alpha channel */
slouken@1895
  1552
    if (surface_flags & SDL_SRCALPHA) {
slouken@1895
  1553
        if (fmt->Amask) {
slouken@1895
  1554
            surface->flags &= ~SDL_SRCALPHA;
slouken@1895
  1555
        } else {
slouken@1895
  1556
            /* FIXME: Need to make sure the texture has an alpha channel
slouken@1895
  1557
             *        and copy 'alpha' into the texture alpha channel.
slouken@1895
  1558
             */
slouken@1895
  1559
            alpha = surface->format->alpha;
slouken@1895
  1560
            SDL_SetAlpha(surface, 0, 0);
slouken@1895
  1561
        }
slouken@1895
  1562
    }
slouken@1895
  1563
slouken@1895
  1564
    /* Copy over the image data */
slouken@1895
  1565
    bounds.x = 0;
slouken@1895
  1566
    bounds.y = 0;
slouken@1895
  1567
    bounds.w = surface->w;
slouken@1895
  1568
    bounds.h = surface->h;
slouken@1895
  1569
    SDL_LowerBlit(surface, &bounds, &dst, &bounds);
slouken@1895
  1570
slouken@1895
  1571
    /* Clean up the original surface */
slouken@1895
  1572
    if ((surface_flags & SDL_SRCALPHA) == SDL_SRCALPHA) {
slouken@1895
  1573
        Uint32 aflags = surface_flags & (SDL_SRCALPHA | SDL_RLEACCELOK);
slouken@1895
  1574
        if (fmt->Amask) {
slouken@1895
  1575
            surface->flags |= SDL_SRCALPHA;
slouken@1895
  1576
        } else {
slouken@1895
  1577
            SDL_SetAlpha(surface, aflags, alpha);
slouken@1895
  1578
        }
slouken@1895
  1579
    }
slouken@1895
  1580
slouken@1895
  1581
    /* Update the texture */
slouken@1895
  1582
    if (dst.flags & SDL_PREALLOC) {
slouken@1895
  1583
        SDL_UnlockTexture(textureID);
slouken@1895
  1584
    } else {
slouken@1895
  1585
        SDL_UpdateTexture(textureID, NULL, dst.pixels, dst.pitch);
slouken@1895
  1586
        SDL_free(dst.pixels);
slouken@1895
  1587
    }
slouken@1895
  1588
    SDL_FreeFormat(dst.format);
slouken@1895
  1589
slouken@1895
  1590
    return textureID;
slouken@1895
  1591
}
slouken@1895
  1592
slouken@1895
  1593
static __inline__ SDL_Texture *
slouken@1895
  1594
SDL_GetTextureFromID(SDL_TextureID textureID)
slouken@1895
  1595
{
slouken@1895
  1596
    int hash;
slouken@1895
  1597
    SDL_Texture *texture;
slouken@1895
  1598
slouken@1895
  1599
    if (!_this) {
slouken@1895
  1600
        return NULL;
slouken@1895
  1601
    }
slouken@1895
  1602
slouken@1895
  1603
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1604
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@1895
  1605
         texture = texture->next) {
slouken@1895
  1606
        if (texture->id == textureID) {
slouken@1895
  1607
            return texture;
slouken@1895
  1608
        }
slouken@1895
  1609
    }
slouken@1895
  1610
    return NULL;
slouken@1895
  1611
}
slouken@1895
  1612
slouken@1895
  1613
int
slouken@1895
  1614
SDL_QueryTexture(SDL_TextureID textureID, Uint32 * format, int *access,
slouken@1895
  1615
                 int *w, int *h)
slouken@1895
  1616
{
slouken@1895
  1617
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1618
slouken@1895
  1619
    if (!texture) {
slouken@1895
  1620
        return -1;
slouken@1895
  1621
    }
slouken@1895
  1622
slouken@1895
  1623
    if (format) {
slouken@1895
  1624
        *format = texture->format;
slouken@1895
  1625
    }
slouken@1895
  1626
    if (access) {
slouken@1895
  1627
        *access = texture->access;
slouken@1895
  1628
    }
slouken@1895
  1629
    if (w) {
slouken@1895
  1630
        *w = texture->w;
slouken@1895
  1631
    }
slouken@1895
  1632
    if (h) {
slouken@1895
  1633
        *h = texture->h;
slouken@1895
  1634
    }
slouken@1895
  1635
    return 0;
slouken@1895
  1636
}
slouken@1895
  1637
slouken@1895
  1638
int
slouken@1895
  1639
SDL_QueryTexturePixels(SDL_TextureID textureID, void **pixels, int *pitch)
slouken@1895
  1640
{
slouken@1895
  1641
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1642
    SDL_Renderer *renderer;
slouken@1895
  1643
slouken@1895
  1644
    if (!texture) {
slouken@1895
  1645
        return -1;
slouken@1895
  1646
    }
slouken@1895
  1647
slouken@1895
  1648
    renderer = texture->renderer;
slouken@1895
  1649
    if (!renderer->QueryTexturePixels) {
slouken@1895
  1650
        return -1;
slouken@1895
  1651
    }
slouken@1895
  1652
    return renderer->QueryTexturePixels(renderer, texture, pixels, pitch);
slouken@1895
  1653
}
slouken@1895
  1654
slouken@1895
  1655
int
slouken@1895
  1656
SDL_SetTexturePalette(SDL_TextureID textureID, const SDL_Color * colors,
slouken@1895
  1657
                      int firstcolor, int ncolors)
slouken@1895
  1658
{
slouken@1895
  1659
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1660
    SDL_Renderer *renderer;
slouken@1895
  1661
slouken@1895
  1662
    if (!texture) {
slouken@1895
  1663
        return -1;
slouken@1895
  1664
    }
slouken@1895
  1665
slouken@1895
  1666
    renderer = texture->renderer;
slouken@1895
  1667
    if (!renderer->SetTexturePalette) {
slouken@1895
  1668
        return -1;
slouken@1895
  1669
    }
slouken@1895
  1670
    return renderer->SetTexturePalette(renderer, texture, colors, firstcolor,
slouken@1895
  1671
                                       ncolors);
slouken@1895
  1672
}
slouken@1895
  1673
slouken@1895
  1674
int
slouken@1895
  1675
SDL_GetTexturePalette(SDL_TextureID textureID, SDL_Color * colors,
slouken@1895
  1676
                      int firstcolor, int ncolors)
slouken@1895
  1677
{
slouken@1895
  1678
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1679
    SDL_Renderer *renderer;
slouken@1895
  1680
slouken@1895
  1681
    if (!texture) {
slouken@1895
  1682
        return -1;
slouken@1895
  1683
    }
slouken@1895
  1684
slouken@1895
  1685
    renderer = texture->renderer;
slouken@1895
  1686
    if (!renderer->GetTexturePalette) {
slouken@1895
  1687
        return -1;
slouken@1895
  1688
    }
slouken@1895
  1689
    return renderer->GetTexturePalette(renderer, texture, colors, firstcolor,
slouken@1895
  1690
                                       ncolors);
slouken@1895
  1691
}
slouken@1895
  1692
slouken@1895
  1693
int
slouken@1895
  1694
SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect * rect,
slouken@1895
  1695
                  const void *pixels, int pitch)
slouken@1895
  1696
{
slouken@1895
  1697
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1698
    SDL_Renderer *renderer;
slouken@1895
  1699
    SDL_Rect full_rect;
slouken@1895
  1700
slouken@1895
  1701
    if (!texture) {
slouken@1895
  1702
        return -1;
slouken@1895
  1703
    }
slouken@1895
  1704
slouken@1895
  1705
    renderer = texture->renderer;
slouken@1895
  1706
    if (!renderer->UpdateTexture) {
slouken@1895
  1707
        return -1;
slouken@1895
  1708
    }
slouken@1895
  1709
slouken@1895
  1710
    if (!rect) {
slouken@1895
  1711
        full_rect.x = 0;
slouken@1895
  1712
        full_rect.y = 0;
slouken@1895
  1713
        full_rect.w = texture->w;
slouken@1895
  1714
        full_rect.h = texture->h;
slouken@1895
  1715
        rect = &full_rect;
slouken@1895
  1716
    }
slouken@1895
  1717
slouken@1895
  1718
    return renderer->UpdateTexture(renderer, texture, rect, pixels, pitch);
slouken@1895
  1719
}
slouken@1895
  1720
slouken@1895
  1721
int
slouken@1895
  1722
SDL_LockTexture(SDL_TextureID textureID, const SDL_Rect * rect, int markDirty,
slouken@1895
  1723
                void **pixels, int *pitch)
slouken@1895
  1724
{
slouken@1895
  1725
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1726
    SDL_Renderer *renderer;
slouken@1895
  1727
    SDL_Rect full_rect;
slouken@1895
  1728
slouken@1895
  1729
    if (!texture) {
slouken@1895
  1730
        return -1;
slouken@1895
  1731
    }
slouken@1895
  1732
slouken@1895
  1733
    renderer = texture->renderer;
slouken@1895
  1734
    if (!renderer->LockTexture) {
slouken@1895
  1735
        return -1;
slouken@1895
  1736
    }
slouken@1895
  1737
slouken@1895
  1738
    if (!rect) {
slouken@1895
  1739
        full_rect.x = 0;
slouken@1895
  1740
        full_rect.y = 0;
slouken@1895
  1741
        full_rect.w = texture->w;
slouken@1895
  1742
        full_rect.h = texture->h;
slouken@1895
  1743
        rect = &full_rect;
slouken@1895
  1744
    }
slouken@1895
  1745
slouken@1895
  1746
    return renderer->LockTexture(renderer, texture, rect, markDirty, pixels,
slouken@1895
  1747
                                 pitch);
slouken@1895
  1748
}
slouken@1895
  1749
slouken@1895
  1750
void
slouken@1895
  1751
SDL_UnlockTexture(SDL_TextureID textureID)
slouken@1895
  1752
{
slouken@1895
  1753
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1754
    SDL_Renderer *renderer;
slouken@1895
  1755
slouken@1895
  1756
    if (!texture) {
slouken@1895
  1757
        return;
slouken@1895
  1758
    }
slouken@1895
  1759
slouken@1895
  1760
    renderer = texture->renderer;
slouken@1895
  1761
    if (!renderer->UnlockTexture) {
slouken@1895
  1762
        return;
slouken@1895
  1763
    }
slouken@1895
  1764
    renderer->UnlockTexture(renderer, texture);
slouken@1895
  1765
}
slouken@1895
  1766
slouken@1895
  1767
void
slouken@1895
  1768
SDL_DirtyTexture(SDL_TextureID textureID, int numrects,
slouken@1895
  1769
                 const SDL_Rect * rects)
slouken@1895
  1770
{
slouken@1895
  1771
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1772
    SDL_Renderer *renderer;
slouken@1895
  1773
slouken@1895
  1774
    if (!texture) {
slouken@1895
  1775
        return;
slouken@1895
  1776
    }
slouken@1895
  1777
slouken@1895
  1778
    renderer = texture->renderer;
slouken@1895
  1779
    if (!renderer->DirtyTexture) {
slouken@1895
  1780
        return;
slouken@1895
  1781
    }
slouken@1895
  1782
    renderer->DirtyTexture(renderer, texture, numrects, rects);
slouken@1895
  1783
}
slouken@1895
  1784
slouken@1895
  1785
int
slouken@1895
  1786
SDL_RenderFill(const SDL_Rect * rect, Uint32 color)
slouken@1895
  1787
{
slouken@1895
  1788
    SDL_Renderer *renderer;
slouken@1895
  1789
    SDL_Window *window;
slouken@1895
  1790
    SDL_Rect real_rect;
slouken@1895
  1791
slouken@1895
  1792
    if (!_this) {
slouken@1912
  1793
        SDL_UninitializedVideo();
slouken@1895
  1794
        return -1;
slouken@1895
  1795
    }
slouken@1895
  1796
slouken@1895
  1797
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1798
    if (!renderer || !renderer->RenderFill) {
slouken@1895
  1799
        return -1;
slouken@1895
  1800
    }
slouken@1895
  1801
slouken@1895
  1802
    window = SDL_GetWindowFromID(renderer->window);
slouken@1895
  1803
    real_rect.x = 0;
slouken@1895
  1804
    real_rect.y = 0;
slouken@1895
  1805
    real_rect.w = window->w;
slouken@1895
  1806
    real_rect.h = window->h;
slouken@1895
  1807
    if (rect) {
slouken@1895
  1808
        if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
slouken@1895
  1809
            return 0;
slouken@1895
  1810
        }
slouken@1895
  1811
    }
slouken@1895
  1812
slouken@1897
  1813
    return renderer->RenderFill(renderer, &real_rect, color);
slouken@1895
  1814
}
slouken@1895
  1815
slouken@1895
  1816
int
slouken@1895
  1817
SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect * srcrect,
slouken@1895
  1818
               const SDL_Rect * dstrect, int blendMode, int scaleMode)
slouken@1895
  1819
{
slouken@1895
  1820
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1821
    SDL_Renderer *renderer;
slouken@1895
  1822
    SDL_Window *window;
slouken@1895
  1823
    SDL_Rect real_srcrect;
slouken@1895
  1824
    SDL_Rect real_dstrect;
slouken@1895
  1825
slouken@1895
  1826
    if (!texture || texture->renderer != SDL_CurrentDisplay.current_renderer) {
slouken@1895
  1827
        return -1;
slouken@1895
  1828
    }
slouken@1895
  1829
slouken@1895
  1830
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1831
    if (!renderer || !renderer->RenderCopy) {
slouken@1895
  1832
        return -1;
slouken@1895
  1833
    }
slouken@1895
  1834
slouken@1895
  1835
    window = SDL_GetWindowFromID(renderer->window);
slouken@1897
  1836
    if (srcrect) {
slouken@1897
  1837
        real_srcrect = *srcrect;
slouken@1897
  1838
    } else {
slouken@1897
  1839
        real_srcrect.x = 0;
slouken@1897
  1840
        real_srcrect.y = 0;
slouken@1897
  1841
        real_srcrect.w = texture->w;
slouken@1897
  1842
        real_srcrect.h = texture->h;
slouken@1895
  1843
    }
slouken@1897
  1844
    if (dstrect) {
slouken@1897
  1845
        real_dstrect = *dstrect;
slouken@1897
  1846
    } else {
slouken@1897
  1847
        real_dstrect.x = 0;
slouken@1897
  1848
        real_dstrect.y = 0;
slouken@1897
  1849
        real_dstrect.w = window->w;
slouken@1897
  1850
        real_dstrect.h = window->h;
slouken@1895
  1851
    }
slouken@1895
  1852
slouken@1897
  1853
    return renderer->RenderCopy(renderer, texture, &real_srcrect,
slouken@1897
  1854
                                &real_dstrect, blendMode, scaleMode);
slouken@1895
  1855
}
slouken@1895
  1856
slouken@1895
  1857
void
slouken@1895
  1858
SDL_RenderPresent(void)
slouken@1895
  1859
{
slouken@1895
  1860
    SDL_Renderer *renderer;
slouken@1895
  1861
slouken@1895
  1862
    if (!_this) {
slouken@1912
  1863
        SDL_UninitializedVideo();
slouken@1895
  1864
        return;
slouken@1895
  1865
    }
slouken@1895
  1866
slouken@1895
  1867
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1868
    if (!renderer || !renderer->RenderPresent) {
slouken@1895
  1869
        return;
slouken@1895
  1870
    }
slouken@1895
  1871
    renderer->RenderPresent(renderer);
slouken@1895
  1872
}
slouken@1895
  1873
slouken@1895
  1874
void
slouken@1895
  1875
SDL_DestroyTexture(SDL_TextureID textureID)
slouken@1895
  1876
{
slouken@1895
  1877
    int hash;
slouken@1895
  1878
    SDL_Texture *prev, *texture;
slouken@1895
  1879
    SDL_Renderer *renderer;
slouken@1895
  1880
slouken@1895
  1881
    if (!_this) {
slouken@1912
  1882
        SDL_UninitializedVideo();
slouken@1895
  1883
        return;
slouken@1895
  1884
    }
slouken@1895
  1885
slouken@1895
  1886
    /* Look up the texture in the hash table */
slouken@1895
  1887
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1888
    prev = NULL;
slouken@1895
  1889
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@1895
  1890
         prev = texture, texture = texture->next) {
slouken@1895
  1891
        if (texture->id == textureID) {
slouken@1895
  1892
            break;
slouken@1895
  1893
        }
slouken@1895
  1894
    }
slouken@1895
  1895
    if (!texture) {
slouken@1895
  1896
        return;
slouken@1895
  1897
    }
slouken@1895
  1898
slouken@1895
  1899
    /* Unlink the texture from the list */
slouken@1895
  1900
    if (prev) {
slouken@1895
  1901
        prev->next = texture->next;
slouken@1895
  1902
    } else {
slouken@1895
  1903
        SDL_CurrentDisplay.textures[hash] = texture->next;
slouken@1895
  1904
    }
slouken@1895
  1905
slouken@1895
  1906
    /* Free the texture */
slouken@1895
  1907
    renderer = texture->renderer;
slouken@1895
  1908
    renderer->DestroyTexture(renderer, texture);
slouken@1895
  1909
    SDL_free(texture);
slouken@1895
  1910
}
slouken@1895
  1911
slouken@1895
  1912
void
slouken@1895
  1913
SDL_DestroyRenderer(SDL_WindowID windowID)
slouken@1895
  1914
{
slouken@1895
  1915
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1916
    SDL_Renderer *renderer;
slouken@1895
  1917
    int i;
slouken@1895
  1918
slouken@1895
  1919
    if (!window) {
slouken@1895
  1920
        return;
slouken@1895
  1921
    }
slouken@1895
  1922
slouken@1895
  1923
    renderer = window->renderer;
slouken@1895
  1924
    if (!renderer) {
slouken@1895
  1925
        return;
slouken@1895
  1926
    }
slouken@1895
  1927
slouken@1895
  1928
    /* Free existing textures for this renderer */
slouken@1895
  1929
    for (i = 0; i < SDL_arraysize(SDL_CurrentDisplay.textures); ++i) {
slouken@1895
  1930
        SDL_Texture *texture;
slouken@1895
  1931
        SDL_Texture *prev = NULL;
slouken@1895
  1932
        SDL_Texture *next;
slouken@1895
  1933
        for (texture = SDL_CurrentDisplay.textures[i]; texture;
slouken@1895
  1934
             texture = next) {
slouken@1895
  1935
            next = texture->next;
slouken@1895
  1936
            if (texture->renderer == renderer) {
slouken@1895
  1937
                if (prev) {
slouken@1895
  1938
                    prev->next = next;
slouken@1895
  1939
                } else {
slouken@1895
  1940
                    SDL_CurrentDisplay.textures[i] = next;
slouken@1895
  1941
                }
slouken@1895
  1942
                renderer->DestroyTexture(renderer, texture);
slouken@1895
  1943
                SDL_free(texture);
slouken@1895
  1944
            } else {
slouken@1895
  1945
                prev = texture;
slouken@1895
  1946
            }
slouken@1895
  1947
        }
slouken@1895
  1948
    }
slouken@1895
  1949
slouken@1895
  1950
    /* Free the renderer instance */
slouken@1895
  1951
    renderer->DestroyRenderer(renderer);
slouken@1895
  1952
slouken@1895
  1953
    /* Clear references */
slouken@1895
  1954
    window->renderer = NULL;
slouken@1895
  1955
    if (SDL_CurrentDisplay.current_renderer == renderer) {
slouken@1895
  1956
        SDL_CurrentDisplay.current_renderer = NULL;
slouken@1895
  1957
    }
slouken@1895
  1958
}
slouken@1895
  1959
slouken@1895
  1960
void
slouken@1895
  1961
SDL_VideoQuit(void)
slouken@1895
  1962
{
slouken@1895
  1963
    int i, j;
slouken@1895
  1964
slouken@1895
  1965
    if (!_this) {
slouken@1895
  1966
        return;
slouken@1895
  1967
    }
slouken@1895
  1968
slouken@1895
  1969
    /* Halt event processing before doing anything else */
slouken@1895
  1970
    SDL_StopEventLoop();
slouken@1895
  1971
slouken@1895
  1972
    /* Clean up the system video */
slouken@1895
  1973
    for (i = _this->num_displays; i--;) {
slouken@1895
  1974
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  1975
        for (j = display->num_windows; j--;) {
slouken@1895
  1976
            SDL_DestroyWindow(display->windows[i].id);
slouken@1895
  1977
        }
slouken@1895
  1978
        if (display->windows) {
slouken@1895
  1979
            SDL_free(display->windows);
slouken@1895
  1980
            display->windows = NULL;
slouken@1895
  1981
        }
slouken@1895
  1982
        display->num_windows = 0;
slouken@1895
  1983
    }
slouken@1895
  1984
    _this->VideoQuit(_this);
slouken@1895
  1985
slouken@1895
  1986
    for (i = _this->num_displays; i--;) {
slouken@1895
  1987
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  1988
        for (j = display->num_display_modes; j--;) {
slouken@1895
  1989
            if (display->display_modes[j].driverdata) {
slouken@1895
  1990
                SDL_free(display->display_modes[j].driverdata);
slouken@1895
  1991
                display->display_modes[j].driverdata = NULL;
slouken@1895
  1992
            }
slouken@1895
  1993
        }
slouken@1895
  1994
        if (display->display_modes) {
slouken@1895
  1995
            SDL_free(display->display_modes);
slouken@1895
  1996
            display->display_modes = NULL;
slouken@1895
  1997
        }
slouken@1895
  1998
        if (display->desktop_mode.driverdata) {
slouken@1895
  1999
            SDL_free(display->desktop_mode.driverdata);
slouken@1895
  2000
            display->desktop_mode.driverdata = NULL;
slouken@1895
  2001
        }
slouken@1895
  2002
        if (display->palette) {
slouken@1895
  2003
            SDL_FreePalette(display->palette);
slouken@1895
  2004
            display->palette = NULL;
slouken@1895
  2005
        }
slouken@1895
  2006
        if (display->gamma) {
slouken@1895
  2007
            SDL_free(display->gamma);
slouken@1895
  2008
        }
slouken@1895
  2009
        if (display->driverdata) {
slouken@1895
  2010
            SDL_free(display->driverdata);
slouken@1895
  2011
        }
slouken@1895
  2012
    }
slouken@1895
  2013
    if (_this->displays) {
slouken@1895
  2014
        SDL_free(_this->displays);
slouken@1895
  2015
        _this->displays = NULL;
slouken@1895
  2016
    }
slouken@1895
  2017
    _this->free(_this);
slouken@1895
  2018
    _this = NULL;
slouken@0
  2019
}
slouken@0
  2020
slouken@1895
  2021
int
slouken@1895
  2022
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2023
{
slouken@1895
  2024
    int retval;
slouken@0
  2025
slouken@1912
  2026
    if (!_this) {
slouken@1912
  2027
        SDL_UninitializedVideo();
slouken@1912
  2028
        return -1;
slouken@1912
  2029
    }
slouken@1912
  2030
slouken@1912
  2031
    if (_this->GL_LoadLibrary) {
slouken@1912
  2032
        retval = _this->GL_LoadLibrary(_this, path);
slouken@1895
  2033
    } else {
slouken@1912
  2034
        SDL_SetError("No dynamic GL support in video driver");
slouken@1912
  2035
        retval = -1;
slouken@1895
  2036
    }
slouken@1895
  2037
    return (retval);
slouken@0
  2038
}
slouken@0
  2039
slouken@1895
  2040
void *
slouken@1895
  2041
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2042
{
slouken@1895
  2043
    void *func;
slouken@0
  2044
slouken@1912
  2045
    if (!_this) {
slouken@1912
  2046
        SDL_UninitializedVideo();
slouken@1912
  2047
        return NULL;
slouken@1912
  2048
    }
slouken@1912
  2049
slouken@1895
  2050
    func = NULL;
slouken@1895
  2051
    if (_this->GL_GetProcAddress) {
slouken@1895
  2052
        if (_this->gl_config.driver_loaded) {
slouken@1895
  2053
            func = _this->GL_GetProcAddress(_this, proc);
slouken@1895
  2054
        } else {
slouken@1895
  2055
            SDL_SetError("No GL driver has been loaded");
slouken@1895
  2056
        }
slouken@1895
  2057
    } else {
slouken@1895
  2058
        SDL_SetError("No dynamic GL support in video driver");
slouken@1895
  2059
    }
slouken@1895
  2060
    return func;
slouken@0
  2061
}
slouken@0
  2062
slouken@1926
  2063
SDL_bool
slouken@1926
  2064
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2065
{
slouken@1926
  2066
#if SDL_VIDEO_OPENGL
slouken@1926
  2067
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@1926
  2068
    const char *extensions;
slouken@1926
  2069
    const char *start;
slouken@1926
  2070
    const char *where, *terminator;
slouken@1926
  2071
slouken@1926
  2072
    /* Extension names should not have spaces. */
slouken@1926
  2073
    where = SDL_strchr(extension, ' ');
slouken@1926
  2074
    if (where || *extension == '\0') {
slouken@1926
  2075
        return SDL_FALSE;
slouken@1926
  2076
    }
slouken@1926
  2077
slouken@1926
  2078
    /* See if there's an environment variable override */
slouken@1926
  2079
    start = SDL_getenv(extension);
slouken@1926
  2080
    if (start && *start == '0') {
slouken@1926
  2081
        return SDL_FALSE;
slouken@1926
  2082
    }
slouken@1926
  2083
slouken@1926
  2084
    /* Lookup the available extensions */
slouken@1926
  2085
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@1926
  2086
    if (glGetStringFunc) {
slouken@1926
  2087
        extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@1926
  2088
    } else {
slouken@1926
  2089
        extensions = NULL;
slouken@1926
  2090
    }
slouken@1926
  2091
    if (!extensions) {
slouken@1926
  2092
        return SDL_FALSE;
slouken@1926
  2093
    }
slouken@1926
  2094
slouken@1926
  2095
    /* It takes a bit of care to be fool-proof about parsing the
slouken@1926
  2096
     * OpenGL extensions string. Don't be fooled by sub-strings,
slouken@1926
  2097
     * etc. */
slouken@1926
  2098
slouken@1926
  2099
    start = extensions;
slouken@1926
  2100
slouken@1926
  2101
    for (;;) {
slouken@1926
  2102
        where = SDL_strstr(start, extension);
slouken@1926
  2103
        if (!where)
slouken@1926
  2104
            break;
slouken@1926
  2105
slouken@1926
  2106
        terminator = where + SDL_strlen(extension);
slouken@1926
  2107
        if (where == start || *(where - 1) == ' ')
slouken@1926
  2108
            if (*terminator == ' ' || *terminator == '\0')
slouken@1926
  2109
                return SDL_TRUE;
slouken@1926
  2110
slouken@1926
  2111
        start = terminator;
slouken@1926
  2112
    }
slouken@1926
  2113
    return SDL_FALSE;
slouken@1926
  2114
#else
slouken@1926
  2115
    return SDL_FALSE;
slouken@1926
  2116
#endif
slouken@1926
  2117
}
slouken@1926
  2118
slouken@1895
  2119
int
slouken@1895
  2120
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2121
{
slouken@1936
  2122
#if SDL_VIDEO_OPENGL
slouken@1895
  2123
    int retval;
slouken@0
  2124
slouken@1912
  2125
    if (!_this) {
slouken@1912
  2126
        SDL_UninitializedVideo();
slouken@1912
  2127
        return -1;
slouken@1912
  2128
    }
slouken@1912
  2129
slouken@1895
  2130
    retval = 0;
slouken@1895
  2131
    switch (attr) {
slouken@1895
  2132
    case SDL_GL_RED_SIZE:
slouken@1895
  2133
        _this->gl_config.red_size = value;
slouken@1895
  2134
        break;
slouken@1895
  2135
    case SDL_GL_GREEN_SIZE:
slouken@1895
  2136
        _this->gl_config.green_size = value;
slouken@1895
  2137
        break;
slouken@1895
  2138
    case SDL_GL_BLUE_SIZE:
slouken@1895
  2139
        _this->gl_config.blue_size = value;
slouken@1895
  2140
        break;
slouken@1895
  2141
    case SDL_GL_ALPHA_SIZE:
slouken@1895
  2142
        _this->gl_config.alpha_size = value;
slouken@1895
  2143
        break;
slouken@1895
  2144
    case SDL_GL_DOUBLEBUFFER:
slouken@1895
  2145
        _this->gl_config.double_buffer = value;
slouken@1895
  2146
        break;
slouken@1895
  2147
    case SDL_GL_BUFFER_SIZE:
slouken@1895
  2148
        _this->gl_config.buffer_size = value;
slouken@1895
  2149
        break;
slouken@1895
  2150
    case SDL_GL_DEPTH_SIZE:
slouken@1895
  2151
        _this->gl_config.depth_size = value;
slouken@1895
  2152
        break;
slouken@1895
  2153
    case SDL_GL_STENCIL_SIZE:
slouken@1895
  2154
        _this->gl_config.stencil_size = value;
slouken@1895
  2155
        break;
slouken@1895
  2156
    case SDL_GL_ACCUM_RED_SIZE:
slouken@1895
  2157
        _this->gl_config.accum_red_size = value;
slouken@1895
  2158
        break;
slouken@1895
  2159
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@1895
  2160
        _this->gl_config.accum_green_size = value;
slouken@1895
  2161
        break;
slouken@1895
  2162
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@1895
  2163
        _this->gl_config.accum_blue_size = value;
slouken@1895
  2164
        break;
slouken@1895
  2165
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@1895
  2166
        _this->gl_config.accum_alpha_size = value;
slouken@1895
  2167
        break;
slouken@1895
  2168
    case SDL_GL_STEREO:
slouken@1895
  2169
        _this->gl_config.stereo = value;
slouken@1895
  2170
        break;
slouken@1895
  2171
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@1895
  2172
        _this->gl_config.multisamplebuffers = value;
slouken@1895
  2173
        break;
slouken@1895
  2174
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@1895
  2175
        _this->gl_config.multisamplesamples = value;
slouken@1895
  2176
        break;
slouken@1895
  2177
    case SDL_GL_ACCELERATED_VISUAL:
slouken@1895
  2178
        _this->gl_config.accelerated = value;
slouken@1895
  2179
        break;
slouken@1895
  2180
    default:
slouken@1895
  2181
        SDL_SetError("Unknown OpenGL attribute");
slouken@1895
  2182
        retval = -1;
slouken@1895
  2183
        break;
slouken@1895
  2184
    }
slouken@1912
  2185
    return retval;
slouken@1936
  2186
#else
slouken@1936
  2187
    SDL_Unsupported();
slouken@1936
  2188
    return -1;
slouken@1936
  2189
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2190
}
slouken@0
  2191
slouken@1895
  2192
int
slouken@1936
  2193
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2194
{
slouken@1936
  2195
#if SDL_VIDEO_OPENGL
slouken@1936
  2196
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@1936
  2197
    GLenum attrib = 0;
slouken@1912
  2198
slouken@1936
  2199
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@1936
  2200
    if (!glGetIntegervFunc) {
slouken@1936
  2201
        return -1;
slouken@1936
  2202
    }
slouken@1936
  2203
    switch (attr) {
slouken@1936
  2204
    case SDL_GL_RED_SIZE:
slouken@1936
  2205
        attrib = GL_RED_BITS;
slouken@1936
  2206
        break;
slouken@1936
  2207
    case SDL_GL_BLUE_SIZE:
slouken@1936
  2208
        attrib = GL_BLUE_BITS;
slouken@1936
  2209
        break;
slouken@1936
  2210
    case SDL_GL_GREEN_SIZE:
slouken@1936
  2211
        attrib = GL_GREEN_BITS;
slouken@1936
  2212
        break;
slouken@1936
  2213
    case SDL_GL_ALPHA_SIZE:
slouken@1936
  2214
        attrib = GL_ALPHA_BITS;
slouken@1936
  2215
        break;
slouken@1936
  2216
    case SDL_GL_DOUBLEBUFFER:
slouken@1936
  2217
        attrib = GL_DOUBLEBUFFER;
slouken@1936
  2218
        break;
slouken@1936
  2219
    case SDL_GL_DEPTH_SIZE:
slouken@1936
  2220
        attrib = GL_DEPTH_BITS;
slouken@1936
  2221
        break;
slouken@1936
  2222
    case SDL_GL_STENCIL_SIZE:
slouken@1936
  2223
        attrib = GL_STENCIL_BITS;
slouken@1936
  2224
        break;
slouken@1936
  2225
    case SDL_GL_ACCUM_RED_SIZE:
slouken@1936
  2226
        attrib = GL_ACCUM_RED_BITS;
slouken@1936
  2227
        break;
slouken@1936
  2228
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@1936
  2229
        attrib = GL_ACCUM_GREEN_BITS;
slouken@1936
  2230
        break;
slouken@1936
  2231
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@1936
  2232
        attrib = GL_ACCUM_BLUE_BITS;
slouken@1936
  2233
        break;
slouken@1936
  2234
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@1936
  2235
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@1936
  2236
        break;
slouken@1936
  2237
    case SDL_GL_STEREO:
slouken@1936
  2238
        attrib = GL_STEREO;
slouken@1936
  2239
        break;
slouken@1936
  2240
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@1936
  2241
        attrib = GL_SAMPLE_BUFFERS_ARB;
slouken@1936
  2242
        break;
slouken@1936
  2243
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@1936
  2244
        attrib = GL_SAMPLES_ARB;
slouken@1936
  2245
        break;
slouken@1936
  2246
    case SDL_GL_BUFFER_SIZE:
slouken@1936
  2247
        {
slouken@1936
  2248
            GLint bits = 0;
slouken@1936
  2249
            GLint component;
slouken@1936
  2250
slouken@1936
  2251
            /* there doesn't seem to be a single flag in OpenGL for this! */
slouken@1938
  2252
            glGetIntegervFunc(GL_RED_BITS, &component);
slouken@1936
  2253
            bits += component;
slouken@1938
  2254
            glGetIntegervFunc(GL_GREEN_BITS, &component);
slouken@1936
  2255
            bits += component;
slouken@1938
  2256
            glGetIntegervFunc(GL_BLUE_BITS, &component);
slouken@1936
  2257
            bits += component;
slouken@1938
  2258
            glGetIntegervFunc(GL_ALPHA_BITS, &component);
slouken@1936
  2259
            bits += component;
slouken@1936
  2260
slouken@1936
  2261
            *value = bits;
slouken@1936
  2262
            return 0;
slouken@1936
  2263
        }
slouken@1936
  2264
    case SDL_GL_ACCELERATED_VISUAL:
slouken@1936
  2265
        {
slouken@1936
  2266
            /* FIXME: How do we get this information? */
slouken@1936
  2267
            *value = (_this->gl_config.accelerated != 0);
slouken@1936
  2268
            return 0;
slouken@1936
  2269
        }
slouken@1936
  2270
    default:
slouken@1936
  2271
        SDL_SetError("Unknown OpenGL attribute");
slouken@1912
  2272
        return -1;
slouken@1912
  2273
    }
slouken@0
  2274
slouken@1938
  2275
    glGetIntegervFunc(attrib, (GLint *) value);
slouken@1936
  2276
    return 0;
slouken@1936
  2277
#else
slouken@1936
  2278
    SDL_Unsupported();
slouken@1936
  2279
    return -1;
slouken@1936
  2280
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2281
}
slouken@0
  2282
slouken@1912
  2283
SDL_GLContext
slouken@1912
  2284
SDL_GL_CreateContext(SDL_WindowID windowID)
slouken@1912
  2285
{
slouken@1912
  2286
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2287
slouken@1912
  2288
    if (!window) {
slouken@1912
  2289
        return NULL;
slouken@1912
  2290
    }
slouken@1912
  2291
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@1912
  2292
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@1912
  2293
        return NULL;
slouken@1912
  2294
    }
slouken@1912
  2295
    return _this->GL_CreateContext(_this, window);
slouken@1912
  2296
}
slouken@1912
  2297
slouken@1912
  2298
int
slouken@1912
  2299
SDL_GL_MakeCurrent(SDL_WindowID windowID, SDL_GLContext context)
slouken@1912
  2300
{
slouken@1912
  2301
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2302
slouken@1913
  2303
    if (window && !(window->flags & SDL_WINDOW_OPENGL)) {
slouken@1912
  2304
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@1912
  2305
        return -1;
slouken@1912
  2306
    }
slouken@1936
  2307
    if (!context) {
slouken@1936
  2308
        window = NULL;
slouken@1936
  2309
    }
slouken@1912
  2310
    return _this->GL_MakeCurrent(_this, window, context);
slouken@1912
  2311
}
slouken@1912
  2312
slouken@1912
  2313
int
slouken@1912
  2314
SDL_GL_SetSwapInterval(int interval)
slouken@1912
  2315
{
slouken@1912
  2316
    if (!_this) {
slouken@1912
  2317
        SDL_UninitializedVideo();
slouken@1912
  2318
        return -1;
slouken@1912
  2319
    }
slouken@1912
  2320
slouken@1912
  2321
    if (_this->GL_SetSwapInterval) {
slouken@1912
  2322
        return _this->GL_SetSwapInterval(_this, interval);
slouken@1912
  2323
    } else {
slouken@1912
  2324
        SDL_SetError("Setting the swap interval is not supported");
slouken@1912
  2325
        return -1;
slouken@1912
  2326
    }
slouken@1912
  2327
}
slouken@1912
  2328
slouken@1912
  2329
int
slouken@1912
  2330
SDL_GL_GetSwapInterval(void)
slouken@1912
  2331
{
slouken@1912
  2332
    if (!_this) {
slouken@1912
  2333
        SDL_UninitializedVideo();
slouken@1912
  2334
        return -1;
slouken@1912
  2335
    }
slouken@1912
  2336
slouken@1912
  2337
    if (_this->GL_GetSwapInterval) {
slouken@1912
  2338
        return _this->GL_GetSwapInterval(_this);
slouken@1912
  2339
    } else {
slouken@1912
  2340
        SDL_SetError("Getting the swap interval is not supported");
slouken@1912
  2341
        return -1;
slouken@1912
  2342
    }
slouken@1912
  2343
}
slouken@1912
  2344
slouken@1895
  2345
void
slouken@1912
  2346
SDL_GL_SwapWindow(SDL_WindowID windowID)
slouken@0
  2347
{
slouken@1912
  2348
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2349
slouken@1912
  2350
    if (!window) {
slouken@1912
  2351
        return;
slouken@1912
  2352
    }
slouken@1912
  2353
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@1912
  2354
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@1912
  2355
        return;
slouken@1912
  2356
    }
slouken@1930
  2357
    _this->GL_SwapWindow(_this, window);
slouken@1912
  2358
}
slouken@1912
  2359
slouken@1912
  2360
void
slouken@1912
  2361
SDL_GL_DeleteContext(SDL_GLContext context)
slouken@1912
  2362
{
slouken@1912
  2363
    if (!_this || !context) {
slouken@1912
  2364
        return;
slouken@1912
  2365
    }
slouken@1936
  2366
    _this->GL_MakeCurrent(_this, NULL, NULL);
slouken@1912
  2367
    _this->GL_DeleteContext(_this, context);
slouken@0
  2368
}
slouken@0
  2369
slouken@1895
  2370
#if 0                           // FIXME
slouken@541
  2371
/* Utility function used by SDL_WM_SetIcon();
slouken@541
  2372
 * flags & 1 for color key, flags & 2 for alpha channel. */
slouken@1895
  2373
static void
slouken@1895
  2374
CreateMaskFromColorKeyOrAlpha(SDL_Surface * icon, Uint8 * mask, int flags)
slouken@0
  2375
{
slouken@1895
  2376
    int x, y;
slouken@1895
  2377
    Uint32 colorkey;
slouken@0
  2378
#define SET_MASKBIT(icon, x, y, mask) \
slouken@0
  2379
	mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8)))
slouken@0
  2380
slouken@1895
  2381
    colorkey = icon->format->colorkey;
slouken@1895
  2382
    switch (icon->format->BytesPerPixel) {
slouken@1895
  2383
    case 1:
slouken@1895
  2384
        {
slouken@1895
  2385
            Uint8 *pixels;
slouken@1895
  2386
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2387
                pixels = (Uint8 *) icon->pixels + y * icon->pitch;
slouken@1895
  2388
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2389
                    if (*pixels++ == colorkey) {
slouken@1895
  2390
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2391
                    }
slouken@1895
  2392
                }
slouken@1895
  2393
            }
slouken@1895
  2394
        }
slouken@1895
  2395
        break;
slouken@0
  2396
slouken@1895
  2397
    case 2:
slouken@1895
  2398
        {
slouken@1895
  2399
            Uint16 *pixels;
slouken@1895
  2400
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2401
                pixels = (Uint16 *) icon->pixels + y * icon->pitch / 2;
slouken@1895
  2402
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2403
                    if ((flags & 1) && *pixels == colorkey) {
slouken@1895
  2404
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2405
                    } else if ((flags & 2)
slouken@1895
  2406
                               && (*pixels & icon->format->Amask) == 0) {
slouken@1895
  2407
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2408
                    }
slouken@1895
  2409
                    pixels++;
slouken@1895
  2410
                }
slouken@1895
  2411
            }
slouken@1895
  2412
        }
slouken@1895
  2413
        break;
slouken@0
  2414
slouken@1895
  2415
    case 4:
slouken@1895
  2416
        {
slouken@1895
  2417
            Uint32 *pixels;
slouken@1895
  2418
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2419
                pixels = (Uint32 *) icon->pixels + y * icon->pitch / 4;
slouken@1895
  2420
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2421
                    if ((flags & 1) && *pixels == colorkey) {
slouken@1895
  2422
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2423
                    } else if ((flags & 2)
slouken@1895
  2424
                               && (*pixels & icon->format->Amask) == 0) {
slouken@1895
  2425
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2426
                    }
slouken@1895
  2427
                    pixels++;
slouken@1895
  2428
                }
slouken@1895
  2429
            }
slouken@1895
  2430
        }
slouken@1895
  2431
        break;
slouken@1895
  2432
    }
slouken@0
  2433
}
slouken@0
  2434
slouken@0
  2435
/*
slouken@0
  2436
 * Sets the window manager icon for the display window.
slouken@0
  2437
 */
slouken@1895
  2438
void
slouken@1895
  2439
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
slouken@0
  2440
{
slouken@1895
  2441
    if (icon && _this->SetIcon) {
slouken@1895
  2442
        /* Generate a mask if necessary, and create the icon! */
slouken@1895
  2443
        if (mask == NULL) {
slouken@1895
  2444
            int mask_len = icon->h * (icon->w + 7) / 8;
slouken@1895
  2445
            int flags = 0;
slouken@1895
  2446
            mask = (Uint8 *) SDL_malloc(mask_len);
slouken@1895
  2447
            if (mask == NULL) {
slouken@1895
  2448
                return;
slouken@1895
  2449
            }
slouken@1895
  2450
            SDL_memset(mask, ~0, mask_len);
slouken@1895
  2451
            if (icon->flags & SDL_SRCCOLORKEY)
slouken@1895
  2452
                flags |= 1;
slouken@1895
  2453
            if (icon->flags & SDL_SRCALPHA)
slouken@1895
  2454
                flags |= 2;
slouken@1895
  2455
            if (flags) {
slouken@1895
  2456
                CreateMaskFromColorKeyOrAlpha(icon, mask, flags);
slouken@1895
  2457
            }
slouken@1895
  2458
            _this->SetIcon(_this, icon, mask);
slouken@1895
  2459
            SDL_free(mask);
slouken@1895
  2460
        } else {
slouken@1895
  2461
            _this->SetIcon(_this, icon, mask);
slouken@1895
  2462
        }
slouken@1895
  2463
    }
slouken@1895
  2464
}
slouken@1895
  2465
#endif
slouken@0
  2466
slouken@1895
  2467
SDL_bool
slouken@1895
  2468
SDL_GetWindowWMInfo(SDL_WindowID windowID, struct SDL_SysWMinfo *info)
slouken@1895
  2469
{
slouken@1895
  2470
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  2471
slouken@1895
  2472
    if (!window || !_this->GetWindowWMInfo) {
slouken@1895
  2473
        return SDL_FALSE;
slouken@1895
  2474
    }
slouken@1895
  2475
    return (_this->GetWindowWMInfo(_this, window, info));
slouken@0
  2476
}
slouken@0
  2477
slouken@1895
  2478
/* vi: set ts=4 sw=4 expandtab: */