src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Wed, 26 Jul 2006 03:12:05 +0000
changeset 1942 4371d679ee12
parent 1941 bf09d535e014
child 1944 91f41fc124a7
permissions -rw-r--r--
Hopefully glSDL has been superceded by the OpenGL render driver.
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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_PICOGUI
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    &PG_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_AALIB
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    &AALIB_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_OPENGL
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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--;) {
slouken@1895
   386
        if (SDL_memcmp(mode, &modes[i], sizeof(*mode)) == 0) {
slouken@1895
   387
            return SDL_FALSE;
slouken@1895
   388
        }
slouken@1895
   389
    }
slouken@910
   390
slouken@1895
   391
    /* Go ahead and add the new mode */
slouken@1895
   392
    if (nmodes == display->max_display_modes) {
slouken@1895
   393
        modes =
slouken@1895
   394
            SDL_realloc(modes,
slouken@1895
   395
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@1895
   396
        if (!modes) {
slouken@1895
   397
            return SDL_FALSE;
slouken@1895
   398
        }
slouken@1895
   399
        display->display_modes = modes;
slouken@1895
   400
        display->max_display_modes += 32;
slouken@1895
   401
    }
slouken@1895
   402
    modes[nmodes] = *mode;
slouken@1895
   403
    display->num_display_modes++;
icculus@650
   404
slouken@1895
   405
    return SDL_TRUE;
slouken@1895
   406
}
slouken@0
   407
slouken@1895
   408
int
slouken@1895
   409
SDL_GetNumDisplayModes()
slouken@1895
   410
{
slouken@1895
   411
    if (_this) {
slouken@1895
   412
        SDL_VideoDisplay *display = &SDL_CurrentDisplay;
slouken@1895
   413
        if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@1895
   414
            _this->GetDisplayModes(_this);
slouken@1895
   415
            SDL_qsort(display->display_modes, display->num_display_modes,
slouken@1895
   416
                      sizeof(SDL_DisplayMode), cmpmodes);
slouken@1895
   417
        }
slouken@1895
   418
        return display->num_display_modes;
slouken@1895
   419
    }
slouken@1895
   420
    return 0;
slouken@1895
   421
}
slouken@1895
   422
slouken@1895
   423
const SDL_DisplayMode *
slouken@1895
   424
SDL_GetDisplayMode(int index)
slouken@1895
   425
{
slouken@1895
   426
    if (index < 0 || index >= SDL_GetNumDisplayModes()) {
slouken@1895
   427
        SDL_SetError("index must be in the range of 0 - %d",
slouken@1895
   428
                     SDL_GetNumDisplayModes() - 1);
slouken@1895
   429
        return NULL;
slouken@1895
   430
    }
slouken@1895
   431
    return &SDL_CurrentDisplay.display_modes[index];
slouken@1895
   432
}
slouken@1895
   433
slouken@1895
   434
const SDL_DisplayMode *
slouken@1895
   435
SDL_GetDesktopDisplayMode(void)
slouken@1895
   436
{
slouken@1895
   437
    if (_this) {
slouken@1895
   438
        return &SDL_CurrentDisplay.desktop_mode;
slouken@1895
   439
    }
slouken@1895
   440
    return NULL;
slouken@1895
   441
}
slouken@0
   442
slouken@1895
   443
const SDL_DisplayMode *
slouken@1895
   444
SDL_GetCurrentDisplayMode(void)
slouken@1895
   445
{
slouken@1895
   446
    if (_this) {
slouken@1895
   447
        return &SDL_CurrentDisplay.current_mode;
slouken@1895
   448
    }
slouken@1895
   449
    return NULL;
slouken@1895
   450
}
slouken@1895
   451
slouken@1895
   452
SDL_DisplayMode *
slouken@1895
   453
SDL_GetClosestDisplayMode(const SDL_DisplayMode * mode,
slouken@1895
   454
                          SDL_DisplayMode * closest)
slouken@1895
   455
{
slouken@1895
   456
    Uint32 target_format;
slouken@1895
   457
    int target_refresh_rate;
slouken@1895
   458
    int i;
slouken@1895
   459
    SDL_DisplayMode *current, *match;
slouken@0
   460
slouken@1895
   461
    if (!_this || !mode || !closest) {
slouken@1895
   462
        return NULL;
slouken@1895
   463
    }
slouken@1895
   464
slouken@1895
   465
    /* Default to the desktop format */
slouken@1895
   466
    if (mode->format) {
slouken@1895
   467
        target_format = mode->format;
slouken@1895
   468
    } else {
slouken@1895
   469
        target_format = SDL_CurrentDisplay.desktop_mode.format;
slouken@1895
   470
    }
slouken@1895
   471
slouken@1895
   472
    /* Default to the desktop refresh rate */
slouken@1895
   473
    if (mode->refresh_rate) {
slouken@1895
   474
        target_refresh_rate = mode->refresh_rate;
slouken@1895
   475
    } else {
slouken@1895
   476
        target_refresh_rate = SDL_CurrentDisplay.desktop_mode.refresh_rate;
slouken@1895
   477
    }
slouken@1895
   478
slouken@1895
   479
    match = NULL;
slouken@1895
   480
    for (i = 0; i < SDL_GetNumDisplayModes(); ++i) {
slouken@1895
   481
        current = &SDL_CurrentDisplay.display_modes[i];
slouken@0
   482
slouken@1895
   483
        if ((current->w && current->h) &&
slouken@1895
   484
            (current->w < mode->w || current->h < mode->h)) {
slouken@1895
   485
            /* Out of sorted modes large enough here */
slouken@1895
   486
            break;
slouken@1895
   487
        }
slouken@1895
   488
        if (!match || current->w < match->w || current->h < match->h) {
slouken@1895
   489
            match = current;
slouken@1895
   490
            continue;
slouken@1895
   491
        }
slouken@1895
   492
        if (current->format != match->format) {
slouken@1895
   493
            /* Sorted highest depth to lowest */
slouken@1895
   494
            if (current->format == target_format ||
slouken@1895
   495
                (SDL_BITSPERPIXEL(current->format) >=
slouken@1895
   496
                 SDL_BITSPERPIXEL(target_format)
slouken@1895
   497
                 && SDL_PIXELTYPE(current->format) ==
slouken@1895
   498
                 SDL_PIXELTYPE(target_format))) {
slouken@1895
   499
                match = current;
slouken@1895
   500
            }
slouken@1895
   501
            continue;
slouken@1895
   502
        }
slouken@1895
   503
        if (current->refresh_rate != match->refresh_rate) {
slouken@1895
   504
            /* Sorted highest refresh to lowest */
slouken@1895
   505
            if (current->refresh_rate >= target_refresh_rate) {
slouken@1895
   506
                match = current;
slouken@1895
   507
            }
slouken@1895
   508
        }
slouken@1895
   509
    }
slouken@1895
   510
    if (match) {
slouken@1895
   511
        if (match->format) {
slouken@1895
   512
            closest->format = match->format;
slouken@1895
   513
        } else {
slouken@1895
   514
            closest->format = mode->format;
slouken@1895
   515
        }
slouken@1895
   516
        if (match->w && match->h) {
slouken@1895
   517
            closest->w = match->w;
slouken@1895
   518
            closest->h = match->h;
slouken@1895
   519
        } else {
slouken@1895
   520
            closest->w = mode->w;
slouken@1895
   521
            closest->h = mode->h;
slouken@1895
   522
        }
slouken@1895
   523
        if (match->refresh_rate) {
slouken@1895
   524
            closest->refresh_rate = match->refresh_rate;
slouken@1895
   525
        } else {
slouken@1895
   526
            closest->refresh_rate = mode->refresh_rate;
slouken@1895
   527
        }
slouken@1895
   528
        closest->driverdata = match->driverdata;
slouken@0
   529
slouken@1895
   530
        /* Pick some reasonable defaults if the app and driver don't care */
slouken@1895
   531
        if (!closest->format) {
slouken@1895
   532
            closest->format = SDL_PixelFormat_RGB888;
slouken@1895
   533
        }
slouken@1895
   534
        if (!closest->w) {
slouken@1895
   535
            closest->w = 640;
slouken@1895
   536
        }
slouken@1895
   537
        if (!closest->h) {
slouken@1895
   538
            closest->h = 480;
slouken@1895
   539
        }
slouken@1895
   540
        return closest;
slouken@1895
   541
    }
slouken@1895
   542
    return NULL;
slouken@1895
   543
}
slouken@1895
   544
slouken@1895
   545
int
slouken@1895
   546
SDL_SetDisplayMode(const SDL_DisplayMode * mode)
slouken@1895
   547
{
slouken@1895
   548
    SDL_VideoDisplay *display;
slouken@1895
   549
    SDL_DisplayMode display_mode;
slouken@1895
   550
    int i, ncolors;
slouken@1895
   551
slouken@1895
   552
    if (!_this) {
slouken@1912
   553
        SDL_UninitializedVideo();
slouken@1895
   554
        return -1;
slouken@1895
   555
    }
slouken@0
   556
slouken@1895
   557
    if (!mode) {
slouken@1895
   558
        mode = SDL_GetDesktopDisplayMode();
slouken@1895
   559
    }
slouken@1895
   560
    display = &SDL_CurrentDisplay;
slouken@1895
   561
    display_mode = *mode;
slouken@1895
   562
slouken@1895
   563
    /* Default to the current mode */
slouken@1895
   564
    if (!display_mode.format) {
slouken@1895
   565
        display_mode.format = display->current_mode.format;
slouken@1895
   566
    }
slouken@1895
   567
    if (!display_mode.w) {
slouken@1895
   568
        display_mode.w = display->current_mode.w;
slouken@1895
   569
    }
slouken@1895
   570
    if (!display_mode.h) {
slouken@1895
   571
        display_mode.h = display->current_mode.h;
slouken@1895
   572
    }
slouken@1895
   573
    if (!display_mode.refresh_rate) {
slouken@1895
   574
        display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@1895
   575
    }
slouken@1895
   576
slouken@1895
   577
    /* Get a good video mode, the closest one possible */
slouken@1895
   578
    if (!SDL_GetClosestDisplayMode(&display_mode, &display_mode)) {
slouken@1895
   579
        SDL_SetError("No video mode large enough for %dx%d",
slouken@1895
   580
                     display_mode.w, display_mode.h);
slouken@1895
   581
        return -1;
slouken@1895
   582
    }
slouken@1895
   583
slouken@1895
   584
    /* See if there's anything left to do */
slouken@1895
   585
    if (SDL_memcmp
slouken@1895
   586
        (&display_mode, SDL_GetCurrentDisplayMode(),
slouken@1895
   587
         sizeof(display_mode)) == 0) {
slouken@1895
   588
        return 0;
slouken@1895
   589
    }
slouken@0
   590
slouken@1895
   591
    /* Actually change the display mode */
slouken@1895
   592
    if (_this->SetDisplayMode(_this, &display_mode) < 0) {
slouken@1895
   593
        return -1;
slouken@1895
   594
    }
slouken@1895
   595
    display->current_mode = display_mode;
slouken@1895
   596
slouken@1895
   597
    /* Set up a palette, if necessary */
slouken@1895
   598
    if (SDL_ISPIXELFORMAT_INDEXED(display_mode.format)) {
slouken@1895
   599
        ncolors = (1 << SDL_BITSPERPIXEL(display_mode.format));
slouken@1895
   600
    } else {
slouken@1895
   601
        ncolors = 0;
slouken@1895
   602
    }
slouken@1895
   603
    if ((!ncolors && display->palette) || (ncolors && !display->palette)
slouken@1895
   604
        || (ncolors && ncolors != display->palette->ncolors)) {
slouken@1895
   605
        if (display->palette) {
slouken@1895
   606
            SDL_FreePalette(display->palette);
slouken@1895
   607
            display->palette = NULL;
slouken@1895
   608
        }
slouken@1895
   609
        if (ncolors) {
slouken@1895
   610
            display->palette = SDL_AllocPalette(ncolors);
slouken@1895
   611
            if (!display->palette) {
slouken@1895
   612
                return -1;
slouken@1895
   613
            }
slouken@1895
   614
            SDL_DitherColors(display->palette->colors,
slouken@1895
   615
                             SDL_BITSPERPIXEL(display_mode.format));
slouken@1895
   616
        }
slouken@1895
   617
    }
slouken@1895
   618
slouken@1895
   619
    /* Move any fullscreen windows into position */
slouken@1895
   620
    for (i = 0; i < display->num_windows; ++i) {
slouken@1895
   621
        SDL_Window *window = &display->windows[i];
slouken@1895
   622
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
   623
            SDL_SetWindowPosition(window->id,
slouken@1895
   624
                                  ((display_mode.w - window->w) / 2),
slouken@1895
   625
                                  ((display_mode.h - window->h) / 2));
slouken@1895
   626
        }
slouken@1895
   627
    }
slouken@1895
   628
slouken@1895
   629
    return 0;
slouken@0
   630
}
slouken@0
   631
slouken@1895
   632
int
slouken@1895
   633
SDL_SetFullscreenDisplayMode(const SDL_DisplayMode * mode)
slouken@1895
   634
{
slouken@1895
   635
    SDL_VideoDisplay *display;
slouken@1895
   636
    int i;
slouken@1895
   637
slouken@1895
   638
    if (!_this) {
slouken@1912
   639
        SDL_UninitializedVideo();
slouken@1895
   640
        return -1;
slouken@1895
   641
    }
slouken@1895
   642
slouken@1895
   643
    display = &SDL_CurrentDisplay;
slouken@1895
   644
    if (mode) {
slouken@1895
   645
        SDL_GetClosestDisplayMode(mode, &display->desired_mode);
slouken@1895
   646
        display->fullscreen_mode = &display->desired_mode;
slouken@1895
   647
    } else {
slouken@1895
   648
        display->fullscreen_mode = NULL;
slouken@1895
   649
    }
slouken@1895
   650
slouken@1895
   651
    /* Actually set the mode if we have a fullscreen window visible */
slouken@1895
   652
    for (i = 0; i < display->num_windows; ++i) {
slouken@1895
   653
        SDL_Window *window = &display->windows[i];
slouken@1895
   654
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
   655
            return SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
   656
        }
slouken@1895
   657
    }
slouken@1895
   658
    return 0;
slouken@1895
   659
}
slouken@1895
   660
slouken@1895
   661
const SDL_DisplayMode *
slouken@1895
   662
SDL_GetFullscreenDisplayMode(void)
slouken@1895
   663
{
slouken@1895
   664
    if (_this) {
slouken@1895
   665
        return SDL_CurrentDisplay.fullscreen_mode;
slouken@1895
   666
    }
slouken@1895
   667
    return NULL;
slouken@1895
   668
}
slouken@1895
   669
slouken@1895
   670
int
slouken@1895
   671
SDL_SetDisplayPalette(const SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   672
{
slouken@1895
   673
    SDL_Palette *palette;
slouken@1895
   674
    int status = 0;
slouken@1895
   675
slouken@1895
   676
    if (!_this) {
slouken@1912
   677
        SDL_UninitializedVideo();
slouken@1895
   678
        return -1;
slouken@1895
   679
    }
slouken@1895
   680
    palette = SDL_CurrentDisplay.palette;
slouken@1895
   681
    if (!palette) {
slouken@1895
   682
        SDL_SetError("Display mode does not have a palette");
slouken@1895
   683
        return -1;
slouken@1895
   684
    }
slouken@1895
   685
slouken@1895
   686
    status = SDL_SetPaletteColors(palette, colors, firstcolor, ncolors);
slouken@1895
   687
slouken@1895
   688
    if (_this->SetDisplayPalette) {
slouken@1895
   689
        if (_this->SetDisplayPalette(_this, palette) < 0) {
slouken@1895
   690
            status = -1;
slouken@1895
   691
        }
slouken@1895
   692
    }
slouken@1895
   693
    return status;
slouken@1895
   694
}
slouken@1895
   695
slouken@1895
   696
int
slouken@1895
   697
SDL_GetDisplayPalette(SDL_Color * colors, int firstcolor, int ncolors)
slouken@1895
   698
{
slouken@1895
   699
    SDL_Palette *palette;
slouken@1895
   700
slouken@1895
   701
    if (!_this) {
slouken@1912
   702
        SDL_UninitializedVideo();
slouken@1895
   703
        return -1;
slouken@1895
   704
    }
slouken@1895
   705
slouken@1895
   706
    palette = SDL_CurrentDisplay.palette;
slouken@1895
   707
    if (!palette->ncolors) {
slouken@1895
   708
        SDL_SetError("Display mode does not have a palette");
slouken@1895
   709
        return -1;
slouken@1895
   710
    }
slouken@1895
   711
slouken@1895
   712
    if (firstcolor < 0 || (firstcolor + ncolors) > palette->ncolors) {
slouken@1895
   713
        SDL_SetError("Palette indices are out of range");
slouken@1895
   714
        return -1;
slouken@1895
   715
    }
slouken@1895
   716
slouken@1895
   717
    SDL_memcpy(colors, &palette->colors[firstcolor],
slouken@1895
   718
               ncolors * sizeof(*colors));
slouken@1895
   719
    return 0;
slouken@1895
   720
}
slouken@1895
   721
slouken@1895
   722
SDL_WindowID
slouken@1895
   723
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@1895
   724
{
slouken@1895
   725
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@1895
   726
                                  SDL_WINDOW_OPENGL |
slouken@1895
   727
                                  SDL_WINDOW_SHOWN |
slouken@1895
   728
                                  SDL_WINDOW_BORDERLESS |
slouken@1895
   729
                                  SDL_WINDOW_RESIZABLE |
slouken@1895
   730
                                  SDL_WINDOW_MAXIMIZED |
slouken@1895
   731
                                  SDL_WINDOW_MINIMIZED |
slouken@1895
   732
                                  SDL_WINDOW_INPUT_GRABBED);
slouken@1895
   733
    SDL_VideoDisplay *display;
slouken@1895
   734
    SDL_Window window;
slouken@1895
   735
    int num_windows;
slouken@1895
   736
    SDL_Window *windows;
slouken@1895
   737
slouken@1895
   738
    if (!_this) {
slouken@1912
   739
        SDL_UninitializedVideo();
slouken@1912
   740
        return 0;
slouken@1912
   741
    }
slouken@1912
   742
slouken@1912
   743
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@1912
   744
        SDL_SetError("No OpenGL support in video driver");
slouken@1895
   745
        return 0;
slouken@1895
   746
    }
slouken@0
   747
slouken@1895
   748
    SDL_zero(window);
slouken@1895
   749
    window.id = _this->next_object_id++;
slouken@1895
   750
    window.title = title ? SDL_strdup(title) : NULL;
slouken@1895
   751
    window.x = x;
slouken@1895
   752
    window.y = y;
slouken@1895
   753
    window.w = w;
slouken@1895
   754
    window.h = h;
slouken@1895
   755
    window.flags = (flags & allowed_flags);
slouken@1895
   756
    window.display = _this->current_display;
slouken@1895
   757
slouken@1895
   758
    if (_this->CreateWindow && _this->CreateWindow(_this, &window) < 0) {
slouken@1895
   759
        if (window.title) {
slouken@1895
   760
            SDL_free(window.title);
slouken@1895
   761
        }
slouken@1895
   762
        return 0;
slouken@1895
   763
    }
slouken@1895
   764
slouken@1895
   765
    display = &SDL_CurrentDisplay;
slouken@1895
   766
    num_windows = display->num_windows;
slouken@1895
   767
    windows =
slouken@1895
   768
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@1895
   769
    if (!windows) {
slouken@1895
   770
        if (_this->DestroyWindow) {
slouken@1895
   771
            _this->DestroyWindow(_this, &window);
slouken@1895
   772
        }
slouken@1895
   773
        if (window.title) {
slouken@1895
   774
            SDL_free(window.title);
slouken@1895
   775
        }
slouken@1895
   776
        return 0;
slouken@1895
   777
    }
slouken@1895
   778
    windows[num_windows] = window;
slouken@1895
   779
    display->windows = windows;
slouken@1895
   780
    display->num_windows++;
slouken@1895
   781
slouken@1895
   782
    if (FULLSCREEN_VISIBLE(&window)) {
slouken@1895
   783
        /* Hide any other fullscreen windows */
slouken@1895
   784
        int i;
slouken@1895
   785
        for (i = 0; i < display->num_windows; ++i) {
slouken@1895
   786
            SDL_Window *other = &display->windows[i];
slouken@1895
   787
            if (other->id != window.id && FULLSCREEN_VISIBLE(other)) {
slouken@1895
   788
                SDL_MinimizeWindow(other->id);
slouken@1895
   789
            }
slouken@1895
   790
        }
slouken@1895
   791
        SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
   792
    }
slouken@1895
   793
slouken@1895
   794
    return window.id;
slouken@1895
   795
}
slouken@1895
   796
slouken@1895
   797
SDL_WindowID
slouken@1895
   798
SDL_CreateWindowFrom(const void *data)
slouken@1895
   799
{
slouken@1895
   800
    SDL_VideoDisplay *display;
slouken@1895
   801
    SDL_Window window;
slouken@1895
   802
    int num_windows;
slouken@1895
   803
    SDL_Window *windows;
slouken@1895
   804
slouken@1895
   805
    if (!_this) {
slouken@1912
   806
        SDL_UninitializedVideo();
slouken@1895
   807
        return (0);
slouken@1895
   808
    }
slouken@1895
   809
slouken@1895
   810
    SDL_zero(window);
slouken@1895
   811
    window.id = _this->next_object_id++;
slouken@1895
   812
    window.display = _this->current_display;
slouken@1895
   813
slouken@1895
   814
    if (!_this->CreateWindowFrom ||
slouken@1895
   815
        _this->CreateWindowFrom(_this, &window, data) < 0) {
slouken@1895
   816
        return 0;
slouken@1895
   817
    }
slouken@1895
   818
slouken@1895
   819
    display = &SDL_CurrentDisplay;
slouken@1895
   820
    num_windows = display->num_windows;
slouken@1895
   821
    windows =
slouken@1895
   822
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@1895
   823
    if (!windows) {
slouken@1895
   824
        if (_this->DestroyWindow) {
slouken@1895
   825
            _this->DestroyWindow(_this, &window);
slouken@1895
   826
        }
slouken@1895
   827
        if (window.title) {
slouken@1895
   828
            SDL_free(window.title);
slouken@1895
   829
        }
slouken@1895
   830
        return 0;
slouken@1895
   831
    }
slouken@1895
   832
    windows[num_windows] = window;
slouken@1895
   833
    display->windows = windows;
slouken@1895
   834
    display->num_windows++;
slouken@1895
   835
slouken@1895
   836
    return window.id;
slouken@1895
   837
}
slouken@1895
   838
slouken@1924
   839
int
slouken@1928
   840
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
   841
{
slouken@1928
   842
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@1924
   843
        SDL_SetError("No OpenGL support in video driver");
slouken@1924
   844
        return -1;
slouken@1924
   845
    }
slouken@1924
   846
    if (_this->DestroyWindow) {
slouken@1924
   847
        _this->DestroyWindow(_this, window);
slouken@1924
   848
    }
slouken@1928
   849
    window->flags = flags;
slouken@1924
   850
    return _this->CreateWindow(_this, window);
slouken@1924
   851
}
slouken@1924
   852
slouken@1895
   853
SDL_Window *
slouken@1895
   854
SDL_GetWindowFromID(SDL_WindowID windowID)
slouken@1895
   855
{
slouken@1895
   856
    int i, j;
slouken@1895
   857
slouken@1895
   858
    if (!_this) {
slouken@1912
   859
        SDL_UninitializedVideo();
slouken@1895
   860
        return NULL;
slouken@1895
   861
    }
slouken@1895
   862
slouken@1895
   863
    for (i = 0; i < _this->num_displays; ++i) {
slouken@1895
   864
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
   865
        for (j = 0; j < display->num_windows; ++j) {
slouken@1895
   866
            SDL_Window *window = &display->windows[j];
slouken@1895
   867
            if (window->id == windowID) {
slouken@1895
   868
                return window;
slouken@1895
   869
            }
slouken@1895
   870
        }
slouken@1895
   871
    }
slouken@1895
   872
    return NULL;
slouken@0
   873
}
slouken@0
   874
slouken@1895
   875
SDL_VideoDisplay *
slouken@1895
   876
SDL_GetDisplayFromWindow(SDL_Window * window)
slouken@1895
   877
{
slouken@1895
   878
    if (!_this) {
slouken@1912
   879
        SDL_UninitializedVideo();
slouken@1895
   880
        return NULL;
slouken@1895
   881
    }
slouken@1895
   882
    return &_this->displays[window->display];
slouken@1895
   883
}
slouken@1895
   884
slouken@1895
   885
Uint32
slouken@1895
   886
SDL_GetWindowFlags(SDL_WindowID windowID)
slouken@1895
   887
{
slouken@1895
   888
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   889
slouken@1895
   890
    if (!window) {
slouken@1895
   891
        return 0;
slouken@1895
   892
    }
slouken@1895
   893
    return window->flags;
slouken@1895
   894
}
slouken@1895
   895
slouken@1895
   896
void
slouken@1895
   897
SDL_SetWindowTitle(SDL_WindowID windowID, const char *title)
slouken@1895
   898
{
slouken@1895
   899
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   900
slouken@1895
   901
    if (!window) {
slouken@1895
   902
        return;
slouken@1895
   903
    }
slouken@1895
   904
    if (window->title) {
slouken@1895
   905
        SDL_free(window->title);
slouken@1895
   906
    }
slouken@1895
   907
    window->title = SDL_strdup(title);
slouken@1895
   908
slouken@1895
   909
    if (_this->SetWindowTitle) {
slouken@1895
   910
        _this->SetWindowTitle(_this, window);
slouken@1895
   911
    }
slouken@1895
   912
}
slouken@1895
   913
slouken@1895
   914
const char *
slouken@1895
   915
SDL_GetWindowTitle(SDL_WindowID windowID)
slouken@1895
   916
{
slouken@1895
   917
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   918
slouken@1895
   919
    if (!window) {
slouken@1895
   920
        return NULL;
slouken@1895
   921
    }
slouken@1895
   922
    return window->title;
slouken@1895
   923
}
slouken@1895
   924
slouken@1895
   925
void
slouken@1895
   926
SDL_SetWindowData(SDL_WindowID windowID, void *userdata)
slouken@0
   927
{
slouken@1895
   928
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   929
slouken@1895
   930
    if (!window) {
slouken@1895
   931
        return;
slouken@1895
   932
    }
slouken@1895
   933
    window->userdata = userdata;
slouken@1895
   934
}
slouken@1895
   935
slouken@1895
   936
void *
slouken@1895
   937
SDL_GetWindowData(SDL_WindowID windowID)
slouken@1895
   938
{
slouken@1895
   939
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   940
slouken@1895
   941
    if (!window) {
slouken@1895
   942
        return NULL;
slouken@1895
   943
    }
slouken@1895
   944
    return window->userdata;
slouken@1895
   945
}
slouken@1895
   946
slouken@1895
   947
void
slouken@1895
   948
SDL_SetWindowPosition(SDL_WindowID windowID, int x, int y)
slouken@1895
   949
{
slouken@1895
   950
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   951
slouken@1895
   952
    if (!window) {
slouken@1895
   953
        return;
slouken@1895
   954
    }
slouken@0
   955
slouken@1895
   956
    if (x != SDL_WINDOWPOS_UNDEFINED) {
slouken@1895
   957
        window->x = x;
slouken@1895
   958
    }
slouken@1895
   959
    if (y != SDL_WINDOWPOS_UNDEFINED) {
slouken@1895
   960
        window->y = y;
slouken@1895
   961
    }
slouken@1895
   962
slouken@1895
   963
    if (_this->SetWindowPosition) {
slouken@1895
   964
        _this->SetWindowPosition(_this, window);
slouken@1895
   965
    }
slouken@1895
   966
}
slouken@1895
   967
slouken@1895
   968
void
slouken@1895
   969
SDL_GetWindowPosition(SDL_WindowID windowID, int *x, int *y)
slouken@1895
   970
{
slouken@1895
   971
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   972
slouken@1895
   973
    if (!window) {
slouken@1895
   974
        return;
slouken@1895
   975
    }
slouken@1895
   976
    if (x) {
slouken@1895
   977
        *x = window->x;
slouken@1895
   978
    }
slouken@1895
   979
    if (y) {
slouken@1895
   980
        *y = window->y;
slouken@1895
   981
    }
slouken@1895
   982
}
slouken@1895
   983
slouken@1895
   984
void
slouken@1895
   985
SDL_SetWindowSize(SDL_WindowID windowID, int w, int h)
slouken@1895
   986
{
slouken@1895
   987
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   988
slouken@1895
   989
    if (!window) {
slouken@1895
   990
        return;
slouken@1895
   991
    }
slouken@0
   992
slouken@1895
   993
    window->w = w;
slouken@1895
   994
    window->h = h;
slouken@1895
   995
slouken@1895
   996
    if (_this->SetWindowSize) {
slouken@1895
   997
        _this->SetWindowSize(_this, window);
slouken@1895
   998
    }
slouken@1895
   999
}
slouken@1895
  1000
slouken@1895
  1001
void
slouken@1895
  1002
SDL_GetWindowSize(SDL_WindowID windowID, int *w, int *h)
slouken@1895
  1003
{
slouken@1895
  1004
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1005
slouken@1895
  1006
    if (!window) {
slouken@1895
  1007
        return;
slouken@1895
  1008
    }
slouken@1895
  1009
    if (w) {
slouken@1895
  1010
        *w = window->w;
slouken@1895
  1011
    }
slouken@1895
  1012
    if (h) {
slouken@1895
  1013
        *h = window->h;
slouken@1895
  1014
    }
slouken@1895
  1015
}
slouken@1895
  1016
slouken@1895
  1017
void
slouken@1895
  1018
SDL_ShowWindow(SDL_WindowID windowID)
slouken@1895
  1019
{
slouken@1895
  1020
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1021
slouken@1895
  1022
    if (!window || (window->flags & SDL_WINDOW_SHOWN)) {
slouken@1895
  1023
        return;
slouken@1895
  1024
    }
slouken@1895
  1025
slouken@1895
  1026
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1027
slouken@1895
  1028
    if (_this->ShowWindow) {
slouken@1895
  1029
        _this->ShowWindow(_this, window);
slouken@1895
  1030
    }
slouken@1895
  1031
}
slouken@1895
  1032
slouken@1895
  1033
void
slouken@1895
  1034
SDL_HideWindow(SDL_WindowID windowID)
slouken@1895
  1035
{
slouken@1895
  1036
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1037
slouken@1895
  1038
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@1895
  1039
        return;
slouken@1895
  1040
    }
slouken@1895
  1041
slouken@1895
  1042
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1043
slouken@1895
  1044
    if (_this->HideWindow) {
slouken@1895
  1045
        _this->HideWindow(_this, window);
slouken@1895
  1046
    }
slouken@1895
  1047
}
slouken@0
  1048
slouken@1895
  1049
void
slouken@1895
  1050
SDL_RaiseWindow(SDL_WindowID windowID)
slouken@1895
  1051
{
slouken@1895
  1052
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1053
slouken@1895
  1054
    if (!window) {
slouken@1895
  1055
        return;
slouken@1895
  1056
    }
slouken@1895
  1057
slouken@1895
  1058
    if (_this->RaiseWindow) {
slouken@1895
  1059
        _this->RaiseWindow(_this, window);
slouken@1895
  1060
    }
slouken@1895
  1061
}
slouken@1895
  1062
slouken@1895
  1063
void
slouken@1895
  1064
SDL_MaximizeWindow(SDL_WindowID windowID)
slouken@1895
  1065
{
slouken@1895
  1066
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1067
slouken@1895
  1068
    if (!window || (window->flags & SDL_WINDOW_MAXIMIZED)) {
slouken@1895
  1069
        return;
slouken@1895
  1070
    }
slouken@1895
  1071
slouken@1895
  1072
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@1895
  1073
slouken@1895
  1074
    if (_this->MaximizeWindow) {
slouken@1895
  1075
        _this->MaximizeWindow(_this, window);
slouken@1895
  1076
    }
slouken@1895
  1077
}
slouken@0
  1078
slouken@1895
  1079
void
slouken@1895
  1080
SDL_MinimizeWindow(SDL_WindowID windowID)
slouken@1895
  1081
{
slouken@1895
  1082
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1083
slouken@1895
  1084
    if (!window || (window->flags & SDL_WINDOW_MINIMIZED)) {
slouken@1895
  1085
        return;
slouken@1895
  1086
    }
slouken@1895
  1087
slouken@1895
  1088
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@1895
  1089
slouken@1895
  1090
    if (_this->MinimizeWindow) {
slouken@1895
  1091
        _this->MinimizeWindow(_this, window);
slouken@1895
  1092
    }
slouken@1895
  1093
}
slouken@1895
  1094
slouken@1895
  1095
void
slouken@1895
  1096
SDL_RestoreWindow(SDL_WindowID windowID)
slouken@1895
  1097
{
slouken@1895
  1098
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1099
slouken@1895
  1100
    if (!window
slouken@1895
  1101
        || (window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@1895
  1102
        return;
slouken@1895
  1103
    }
slouken@1895
  1104
slouken@1895
  1105
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@1895
  1106
slouken@1895
  1107
    if (_this->RestoreWindow) {
slouken@1895
  1108
        _this->RestoreWindow(_this, window);
slouken@1895
  1109
    }
slouken@0
  1110
}
slouken@0
  1111
slouken@1895
  1112
int
slouken@1895
  1113
SDL_SetWindowFullscreen(SDL_WindowID windowID, int fullscreen)
slouken@0
  1114
{
slouken@1895
  1115
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1116
slouken@1895
  1117
    if (!window) {
slouken@1895
  1118
        return -1;
slouken@1895
  1119
    }
slouken@1895
  1120
slouken@1895
  1121
    if (fullscreen) {
slouken@1895
  1122
        fullscreen = SDL_WINDOW_FULLSCREEN;
slouken@1895
  1123
    }
slouken@1895
  1124
    if ((window->flags & SDL_WINDOW_FULLSCREEN) == fullscreen) {
slouken@1895
  1125
        return 0;
slouken@1895
  1126
    }
slouken@1895
  1127
slouken@1895
  1128
    if (fullscreen) {
slouken@1895
  1129
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
  1130
slouken@1895
  1131
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
  1132
            SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1133
slouken@1895
  1134
            /* Hide any other fullscreen windows */
slouken@1895
  1135
            int i;
slouken@1895
  1136
            for (i = 0; i < display->num_windows; ++i) {
slouken@1895
  1137
                SDL_Window *other = &display->windows[i];
slouken@1895
  1138
                if (other->id != windowID && FULLSCREEN_VISIBLE(other)) {
slouken@1895
  1139
                    SDL_MinimizeWindow(other->id);
slouken@1895
  1140
                }
slouken@1895
  1141
            }
slouken@1895
  1142
slouken@1895
  1143
            SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
  1144
        }
slouken@1895
  1145
    } else {
slouken@1895
  1146
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@1895
  1147
slouken@1895
  1148
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
  1149
            SDL_SetDisplayMode(NULL);
slouken@1895
  1150
        }
slouken@1895
  1151
    }
slouken@1895
  1152
    return 0;
slouken@1895
  1153
}
slouken@1895
  1154
slouken@1895
  1155
void
slouken@1895
  1156
SDL_SetWindowGrab(SDL_WindowID windowID, int mode)
slouken@1895
  1157
{
slouken@1895
  1158
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1159
slouken@1895
  1160
    if (!window || (!!mode == !!(window->flags & SDL_WINDOW_INPUT_GRABBED))) {
slouken@1895
  1161
        return;
slouken@1895
  1162
    }
slouken@0
  1163
slouken@1895
  1164
    if (mode) {
slouken@1895
  1165
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@1895
  1166
    } else {
slouken@1895
  1167
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@1895
  1168
    }
slouken@1895
  1169
slouken@1895
  1170
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@1895
  1171
        _this->SetWindowGrab(_this, window);
slouken@1895
  1172
    }
slouken@1895
  1173
}
slouken@1895
  1174
slouken@1895
  1175
int
slouken@1895
  1176
SDL_GetWindowGrab(SDL_WindowID windowID)
slouken@1895
  1177
{
slouken@1895
  1178
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1179
slouken@1895
  1180
    if (!window) {
slouken@1895
  1181
        return 0;
slouken@1895
  1182
    }
slouken@1895
  1183
slouken@1895
  1184
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1185
}
slouken@0
  1186
slouken@1895
  1187
void
slouken@1895
  1188
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1189
{
slouken@1895
  1190
}
slouken@1895
  1191
slouken@1895
  1192
void
slouken@1895
  1193
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1194
{
slouken@0
  1195
}
slouken@1895
  1196
slouken@1895
  1197
void
slouken@1895
  1198
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@0
  1199
{
slouken@1895
  1200
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1201
slouken@1895
  1202
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@1895
  1203
        SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
  1204
    }
slouken@1895
  1205
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@1895
  1206
        _this->SetDisplayGammaRamp(_this, display->gamma);
slouken@1895
  1207
    }
slouken@1895
  1208
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) && _this->SetWindowGrab) {
slouken@1895
  1209
        _this->SetWindowGrab(_this, window);
slouken@1895
  1210
    }
slouken@1895
  1211
}
slouken@1895
  1212
slouken@1895
  1213
void
slouken@1895
  1214
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1215
{
slouken@1895
  1216
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@0
  1217
slouken@1895
  1218
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@1895
  1219
        SDL_MinimizeWindow(window->id);
slouken@1895
  1220
        SDL_SetDisplayMode(NULL);
slouken@1895
  1221
    }
slouken@1895
  1222
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@1895
  1223
        _this->SetDisplayGammaRamp(_this, display->saved_gamma);
slouken@1895
  1224
    }
slouken@1895
  1225
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) && _this->SetWindowGrab) {
slouken@1895
  1226
        _this->SetWindowGrab(_this, window);
slouken@1895
  1227
    }
slouken@1895
  1228
}
slouken@1895
  1229
slouken@1895
  1230
SDL_WindowID
slouken@1895
  1231
SDL_GetFocusWindow(void)
slouken@1895
  1232
{
slouken@1895
  1233
    SDL_VideoDisplay *display;
slouken@1895
  1234
    int i;
slouken@1895
  1235
slouken@1895
  1236
    if (!_this) {
slouken@1895
  1237
        return 0;
slouken@1895
  1238
    }
slouken@1895
  1239
slouken@1895
  1240
    display = &SDL_CurrentDisplay;
slouken@1895
  1241
    for (i = 0; i < display->num_windows; ++i) {
slouken@1895
  1242
        SDL_Window *window = &display->windows[i];
slouken@1895
  1243
slouken@1895
  1244
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@1895
  1245
            return window->id;
slouken@1895
  1246
        }
slouken@1895
  1247
    }
slouken@1895
  1248
    return 0;
slouken@1895
  1249
}
slouken@1895
  1250
slouken@1895
  1251
void
slouken@1895
  1252
SDL_DestroyWindow(SDL_WindowID windowID)
slouken@1895
  1253
{
slouken@1895
  1254
    int i, j;
slouken@1895
  1255
slouken@1895
  1256
    if (!_this) {
slouken@1895
  1257
        return;
slouken@1895
  1258
    }
slouken@1895
  1259
slouken@1895
  1260
    /* Restore video mode, etc. */
slouken@1895
  1261
    SDL_SendWindowEvent(windowID, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@0
  1262
slouken@1895
  1263
    for (i = 0; i < _this->num_displays; ++i) {
slouken@1895
  1264
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  1265
        for (j = 0; j < display->num_windows; ++j) {
slouken@1895
  1266
            SDL_Window *window = &display->windows[j];
slouken@1895
  1267
            if (window->id != windowID) {
slouken@1895
  1268
                continue;
slouken@1895
  1269
            }
slouken@1895
  1270
            if (window->renderer) {
slouken@1895
  1271
                SDL_DestroyRenderer(window->id);
slouken@1895
  1272
            }
slouken@1895
  1273
            if (_this->DestroyWindow) {
slouken@1895
  1274
                _this->DestroyWindow(_this, window);
slouken@1895
  1275
            }
slouken@1895
  1276
            if (window->title) {
slouken@1895
  1277
                SDL_free(window->title);
slouken@1895
  1278
            }
slouken@1895
  1279
            if (j != display->num_windows - 1) {
slouken@1895
  1280
                SDL_memcpy(&display->windows[i],
slouken@1895
  1281
                           &display->windows[i + 1],
slouken@1895
  1282
                           (display->num_windows - i - 1) * sizeof(*window));
slouken@1895
  1283
            }
slouken@1895
  1284
            --display->num_windows;
slouken@1895
  1285
            return;
slouken@1895
  1286
        }
slouken@1895
  1287
    }
slouken@1895
  1288
}
slouken@1895
  1289
slouken@1895
  1290
void
slouken@1895
  1291
SDL_AddRenderDriver(int displayIndex, const SDL_RenderDriver * driver)
slouken@1895
  1292
{
slouken@1895
  1293
    SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@1895
  1294
    SDL_RenderDriver *render_drivers;
slouken@1895
  1295
slouken@1895
  1296
    render_drivers =
slouken@1895
  1297
        SDL_realloc(display->render_drivers,
slouken@1895
  1298
                    (display->num_render_drivers +
slouken@1895
  1299
                     1) * sizeof(*render_drivers));
slouken@1895
  1300
    if (render_drivers) {
slouken@1895
  1301
        render_drivers[display->num_render_drivers] = *driver;
slouken@1895
  1302
        display->render_drivers = render_drivers;
slouken@1895
  1303
        display->num_render_drivers++;
slouken@1895
  1304
    }
slouken@1895
  1305
}
slouken@1895
  1306
slouken@1895
  1307
int
slouken@1895
  1308
SDL_GetNumRenderers(void)
slouken@1895
  1309
{
slouken@1895
  1310
    if (_this) {
slouken@1895
  1311
        return SDL_CurrentDisplay.num_render_drivers;
slouken@1895
  1312
    }
slouken@1895
  1313
    return 0;
slouken@1895
  1314
}
slouken@1895
  1315
slouken@1895
  1316
int
slouken@1895
  1317
SDL_GetRendererInfo(int index, SDL_RendererInfo * info)
slouken@1895
  1318
{
slouken@1907
  1319
    if (!_this) {
slouken@1912
  1320
        SDL_UninitializedVideo();
slouken@1907
  1321
        return -1;
slouken@1907
  1322
    }
slouken@1907
  1323
slouken@1907
  1324
    if (index >= SDL_GetNumRenderers()) {
slouken@1895
  1325
        SDL_SetError("index must be in the range of 0 - %d",
slouken@1895
  1326
                     SDL_GetNumRenderers() - 1);
slouken@1895
  1327
        return -1;
slouken@1895
  1328
    }
slouken@1907
  1329
    if (index < 0) {
slouken@1907
  1330
        if (!SDL_CurrentDisplay.current_renderer) {
slouken@1907
  1331
            SDL_SetError("There is no current renderer");
slouken@1907
  1332
            return -1;
slouken@1907
  1333
        }
slouken@1907
  1334
        *info = SDL_CurrentDisplay.current_renderer->info;
slouken@1907
  1335
    } else {
slouken@1907
  1336
        *info = SDL_CurrentDisplay.render_drivers[index].info;
slouken@1907
  1337
    }
slouken@1895
  1338
    return 0;
slouken@0
  1339
}
slouken@0
  1340
slouken@1895
  1341
int
slouken@1895
  1342
SDL_CreateRenderer(SDL_WindowID windowID, int index, Uint32 flags)
slouken@0
  1343
{
slouken@1895
  1344
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1345
slouken@1895
  1346
    if (!window) {
slouken@1895
  1347
        return 0;
slouken@1895
  1348
    }
slouken@1895
  1349
slouken@1895
  1350
    if (index < 0) {
slouken@1905
  1351
        const char *override = SDL_getenv("SDL_VIDEO_RENDERER");
slouken@1895
  1352
        int n = SDL_GetNumRenderers();
slouken@1895
  1353
        for (index = 0; index < n; ++index) {
slouken@1895
  1354
            SDL_RenderDriver *driver =
slouken@1895
  1355
                &SDL_CurrentDisplay.render_drivers[index];
slouken@1895
  1356
slouken@1905
  1357
            if (override) {
slouken@1905
  1358
                if (SDL_strcasecmp(override, driver->info.name) == 0) {
slouken@1905
  1359
                    break;
slouken@1905
  1360
                }
slouken@1905
  1361
            } else {
slouken@1905
  1362
                if ((driver->info.flags & flags) == flags) {
slouken@1905
  1363
                    break;
slouken@1905
  1364
                }
slouken@1895
  1365
            }
slouken@1895
  1366
        }
slouken@1895
  1367
        if (index == n) {
slouken@1895
  1368
            SDL_SetError("Couldn't find matching render driver");
slouken@1895
  1369
            return -1;
slouken@1895
  1370
        }
slouken@1895
  1371
    }
slouken@1895
  1372
slouken@1895
  1373
    if (index >= SDL_GetNumRenderers()) {
slouken@1895
  1374
        SDL_SetError("index must be -1 or in the range of 0 - %d",
slouken@1895
  1375
                     SDL_GetNumRenderers() - 1);
slouken@1895
  1376
        return -1;
slouken@1895
  1377
    }
slouken@1895
  1378
slouken@1895
  1379
    /* Free any existing renderer */
slouken@1895
  1380
    SDL_DestroyRenderer(windowID);
slouken@1895
  1381
slouken@1895
  1382
    /* Create a new renderer instance */
slouken@1895
  1383
    window->renderer =
slouken@1895
  1384
        SDL_CurrentDisplay.render_drivers[index].CreateRenderer(window,
slouken@1895
  1385
                                                                flags);
slouken@1923
  1386
    SDL_SelectRenderer(window->id);
slouken@1895
  1387
slouken@1895
  1388
    return 0;
slouken@1895
  1389
}
slouken@0
  1390
slouken@1895
  1391
int
slouken@1895
  1392
SDL_SelectRenderer(SDL_WindowID windowID)
slouken@1895
  1393
{
slouken@1895
  1394
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1923
  1395
    SDL_Renderer *renderer;
slouken@1895
  1396
slouken@1895
  1397
    if (!window || !window->renderer) {
slouken@1895
  1398
        return -1;
slouken@1895
  1399
    }
slouken@1923
  1400
    renderer = window->renderer;
slouken@1923
  1401
    if (renderer && renderer->ActivateRenderer) {
slouken@1923
  1402
        if (renderer->ActivateRenderer(renderer) < 0) {
slouken@1923
  1403
            return -1;
slouken@1923
  1404
        }
slouken@1923
  1405
    }
slouken@1923
  1406
    SDL_CurrentDisplay.current_renderer = renderer;
slouken@1895
  1407
    return 0;
slouken@1895
  1408
}
slouken@1895
  1409
slouken@1895
  1410
SDL_TextureID
slouken@1895
  1411
SDL_CreateTexture(Uint32 format, int access, int w, int h)
slouken@1895
  1412
{
slouken@1895
  1413
    int hash;
slouken@1895
  1414
    SDL_Renderer *renderer;
slouken@1895
  1415
    SDL_Texture *texture;
slouken@1895
  1416
slouken@1895
  1417
    if (!_this) {
slouken@1912
  1418
        SDL_UninitializedVideo();
slouken@1895
  1419
        return 0;
slouken@1895
  1420
    }
slouken@0
  1421
slouken@1895
  1422
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1423
    if (!renderer || !renderer->CreateTexture) {
slouken@1895
  1424
        return 0;
slouken@1895
  1425
    }
slouken@1895
  1426
slouken@1920
  1427
    texture = (SDL_Texture *) SDL_calloc(1, sizeof(*texture));
slouken@1895
  1428
    if (!texture) {
slouken@1895
  1429
        SDL_OutOfMemory();
slouken@1895
  1430
        return 0;
slouken@1895
  1431
    }
slouken@1895
  1432
slouken@1895
  1433
    texture->id = _this->next_object_id++;
slouken@1895
  1434
    texture->format = format;
slouken@1895
  1435
    texture->access = access;
slouken@1895
  1436
    texture->w = w;
slouken@1895
  1437
    texture->h = h;
slouken@1895
  1438
    texture->renderer = renderer;
slouken@1895
  1439
slouken@1895
  1440
    if (renderer->CreateTexture(renderer, texture) < 0) {
slouken@1924
  1441
        if (renderer->DestroyTexture) {
slouken@1924
  1442
            renderer->DestroyTexture(renderer, texture);
slouken@1924
  1443
        }
slouken@1895
  1444
        SDL_free(texture);
slouken@1895
  1445
        return 0;
slouken@1895
  1446
    }
slouken@1895
  1447
slouken@1895
  1448
    hash = (texture->id % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1449
    texture->next = SDL_CurrentDisplay.textures[hash];
slouken@1895
  1450
    SDL_CurrentDisplay.textures[hash] = texture;
slouken@1895
  1451
slouken@1895
  1452
    return texture->id;
slouken@0
  1453
}
slouken@0
  1454
slouken@1895
  1455
SDL_TextureID
slouken@1895
  1456
SDL_CreateTextureFromSurface(Uint32 format, int access, SDL_Surface * surface)
slouken@0
  1457
{
slouken@1895
  1458
    SDL_TextureID textureID;
slouken@1895
  1459
    Uint32 surface_flags = surface->flags;
slouken@1895
  1460
    SDL_PixelFormat *fmt = surface->format;
slouken@1895
  1461
    Uint8 alpha;
slouken@1895
  1462
    SDL_Rect bounds;
slouken@1895
  1463
    SDL_Surface dst;
slouken@1895
  1464
    int bpp;
slouken@1895
  1465
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@1895
  1466
slouken@1895
  1467
    if (!surface) {
slouken@1895
  1468
        SDL_SetError("SDL_CreateTextureFromSurface() passed NULL surface");
slouken@1895
  1469
        return 0;
slouken@1895
  1470
    }
slouken@0
  1471
slouken@1895
  1472
    if (format) {
slouken@1895
  1473
        if (!SDL_PixelFormatEnumToMasks
slouken@1895
  1474
            (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@1895
  1475
            SDL_SetError("Unknown pixel format");
slouken@1895
  1476
            return 0;
slouken@1895
  1477
        }
slouken@1895
  1478
    } else {
slouken@1895
  1479
        if (fmt->Amask || !(surface_flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA))) {
slouken@1895
  1480
            bpp = fmt->BitsPerPixel;
slouken@1895
  1481
            Rmask = fmt->Rmask;
slouken@1895
  1482
            Gmask = fmt->Gmask;
slouken@1895
  1483
            Bmask = fmt->Bmask;
slouken@1895
  1484
            Amask = fmt->Amask;
slouken@1895
  1485
        } else {
slouken@1895
  1486
            /* Need a format with alpha */
slouken@1895
  1487
            bpp = 32;
slouken@1895
  1488
            Rmask = 0x00FF0000;
slouken@1895
  1489
            Gmask = 0x0000FF00;
slouken@1895
  1490
            Bmask = 0x000000FF;
slouken@1895
  1491
            Amask = 0xFF000000;
slouken@1895
  1492
        }
slouken@1895
  1493
        format = SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
slouken@1895
  1494
        if (!format) {
slouken@1895
  1495
            SDL_SetError("Unknown pixel format");
slouken@1895
  1496
            return 0;
slouken@1895
  1497
        }
slouken@1895
  1498
    }
slouken@1895
  1499
slouken@1895
  1500
    textureID = SDL_CreateTexture(format, access, surface->w, surface->h);
slouken@1895
  1501
    if (!textureID) {
slouken@1895
  1502
        return 0;
slouken@1895
  1503
    }
slouken@0
  1504
slouken@1895
  1505
    /* Set up a destination surface for the texture update */
slouken@1895
  1506
    SDL_zero(dst);
slouken@1895
  1507
    dst.format = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask);
slouken@1895
  1508
    if (!dst.format) {
slouken@1895
  1509
        SDL_DestroyTexture(textureID);
slouken@1895
  1510
        return 0;
slouken@1895
  1511
    }
slouken@1895
  1512
    dst.w = surface->w;
slouken@1895
  1513
    dst.h = surface->h;
slouken@1895
  1514
    if (SDL_LockTexture(textureID, NULL, 1, &dst.pixels, &dst.pitch) == 0) {
slouken@1895
  1515
        dst.flags |= SDL_PREALLOC;
slouken@1895
  1516
    } else {
slouken@1895
  1517
        dst.pitch = SDL_CalculatePitch(&dst);
slouken@1895
  1518
        dst.pixels = SDL_malloc(dst.h * dst.pitch);
slouken@1895
  1519
        if (!dst.pixels) {
slouken@1895
  1520
            SDL_DestroyTexture(textureID);
slouken@1895
  1521
            SDL_FreeFormat(dst.format);
slouken@1895
  1522
            SDL_OutOfMemory();
slouken@1895
  1523
            return 0;
slouken@1895
  1524
        }
slouken@1895
  1525
    }
slouken@1895
  1526
slouken@1895
  1527
    /* Copy the palette if any */
slouken@1895
  1528
    if (SDL_ISPIXELFORMAT_INDEXED(format)) {
slouken@1895
  1529
        if (fmt->palette) {
slouken@1895
  1530
            SDL_SetTexturePalette(textureID, fmt->palette->colors, 0,
slouken@1895
  1531
                                  fmt->palette->ncolors);
slouken@1895
  1532
            SDL_SetSurfacePalette(&dst, fmt->palette);
slouken@1895
  1533
        } else {
slouken@1895
  1534
            dst.format->palette =
slouken@1895
  1535
                SDL_AllocPalette((1 << SDL_BITSPERPIXEL(format)));
slouken@1895
  1536
            if (!dst.format->palette) {
slouken@1895
  1537
                SDL_DestroyTexture(textureID);
slouken@1895
  1538
                SDL_FreeFormat(dst.format);
slouken@1895
  1539
                return 0;
slouken@1895
  1540
            }
slouken@1895
  1541
            SDL_DitherColors(dst.format->palette->colors,
slouken@1895
  1542
                             SDL_BITSPERPIXEL(format));
slouken@1895
  1543
        }
slouken@1895
  1544
    }
slouken@1895
  1545
slouken@1895
  1546
    /* Make the texture transparent if the surface has colorkey */
slouken@1895
  1547
    if (surface_flags & SDL_SRCCOLORKEY) {
slouken@1895
  1548
        int row;
slouken@1895
  1549
        int length = dst.w * dst.format->BytesPerPixel;
slouken@1895
  1550
        Uint8 *p = (Uint8 *) dst.pixels;
slouken@1895
  1551
        for (row = 0; row < dst.h; ++row) {
slouken@1895
  1552
            SDL_memset(p, 0, length);
slouken@1895
  1553
            p += dst.pitch;
slouken@1895
  1554
        }
slouken@1895
  1555
    }
slouken@1895
  1556
slouken@1895
  1557
    /* Copy over the alpha channel */
slouken@1895
  1558
    if (surface_flags & SDL_SRCALPHA) {
slouken@1895
  1559
        if (fmt->Amask) {
slouken@1895
  1560
            surface->flags &= ~SDL_SRCALPHA;
slouken@1895
  1561
        } else {
slouken@1895
  1562
            /* FIXME: Need to make sure the texture has an alpha channel
slouken@1895
  1563
             *        and copy 'alpha' into the texture alpha channel.
slouken@1895
  1564
             */
slouken@1895
  1565
            alpha = surface->format->alpha;
slouken@1895
  1566
            SDL_SetAlpha(surface, 0, 0);
slouken@1895
  1567
        }
slouken@1895
  1568
    }
slouken@1895
  1569
slouken@1895
  1570
    /* Copy over the image data */
slouken@1895
  1571
    bounds.x = 0;
slouken@1895
  1572
    bounds.y = 0;
slouken@1895
  1573
    bounds.w = surface->w;
slouken@1895
  1574
    bounds.h = surface->h;
slouken@1895
  1575
    SDL_LowerBlit(surface, &bounds, &dst, &bounds);
slouken@1895
  1576
slouken@1895
  1577
    /* Clean up the original surface */
slouken@1895
  1578
    if ((surface_flags & SDL_SRCALPHA) == SDL_SRCALPHA) {
slouken@1895
  1579
        Uint32 aflags = surface_flags & (SDL_SRCALPHA | SDL_RLEACCELOK);
slouken@1895
  1580
        if (fmt->Amask) {
slouken@1895
  1581
            surface->flags |= SDL_SRCALPHA;
slouken@1895
  1582
        } else {
slouken@1895
  1583
            SDL_SetAlpha(surface, aflags, alpha);
slouken@1895
  1584
        }
slouken@1895
  1585
    }
slouken@1895
  1586
slouken@1895
  1587
    /* Update the texture */
slouken@1895
  1588
    if (dst.flags & SDL_PREALLOC) {
slouken@1895
  1589
        SDL_UnlockTexture(textureID);
slouken@1895
  1590
    } else {
slouken@1895
  1591
        SDL_UpdateTexture(textureID, NULL, dst.pixels, dst.pitch);
slouken@1895
  1592
        SDL_free(dst.pixels);
slouken@1895
  1593
    }
slouken@1895
  1594
    SDL_FreeFormat(dst.format);
slouken@1895
  1595
slouken@1895
  1596
    return textureID;
slouken@0
  1597
}
slouken@0
  1598
slouken@1895
  1599
static __inline__ SDL_Texture *
slouken@1895
  1600
SDL_GetTextureFromID(SDL_TextureID textureID)
slouken@1895
  1601
{
slouken@1895
  1602
    int hash;
slouken@1895
  1603
    SDL_Texture *texture;
slouken@1895
  1604
slouken@1895
  1605
    if (!_this) {
slouken@1895
  1606
        return NULL;
slouken@1895
  1607
    }
slouken@1895
  1608
slouken@1895
  1609
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1610
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@1895
  1611
         texture = texture->next) {
slouken@1895
  1612
        if (texture->id == textureID) {
slouken@1895
  1613
            return texture;
slouken@1895
  1614
        }
slouken@1895
  1615
    }
slouken@1895
  1616
    return NULL;
slouken@1895
  1617
}
slouken@1895
  1618
slouken@1895
  1619
int
slouken@1895
  1620
SDL_QueryTexture(SDL_TextureID textureID, Uint32 * format, int *access,
slouken@1895
  1621
                 int *w, int *h)
slouken@1895
  1622
{
slouken@1895
  1623
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1624
slouken@1895
  1625
    if (!texture) {
slouken@1895
  1626
        return -1;
slouken@1895
  1627
    }
slouken@1895
  1628
slouken@1895
  1629
    if (format) {
slouken@1895
  1630
        *format = texture->format;
slouken@1895
  1631
    }
slouken@1895
  1632
    if (access) {
slouken@1895
  1633
        *access = texture->access;
slouken@1895
  1634
    }
slouken@1895
  1635
    if (w) {
slouken@1895
  1636
        *w = texture->w;
slouken@1895
  1637
    }
slouken@1895
  1638
    if (h) {
slouken@1895
  1639
        *h = texture->h;
slouken@1895
  1640
    }
slouken@1895
  1641
    return 0;
slouken@1895
  1642
}
slouken@1895
  1643
slouken@1895
  1644
int
slouken@1895
  1645
SDL_QueryTexturePixels(SDL_TextureID textureID, void **pixels, int *pitch)
slouken@0
  1646
{
slouken@1895
  1647
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1648
    SDL_Renderer *renderer;
slouken@1895
  1649
slouken@1895
  1650
    if (!texture) {
slouken@1895
  1651
        return -1;
slouken@1895
  1652
    }
slouken@1895
  1653
slouken@1895
  1654
    renderer = texture->renderer;
slouken@1895
  1655
    if (!renderer->QueryTexturePixels) {
slouken@1895
  1656
        return -1;
slouken@1895
  1657
    }
slouken@1895
  1658
    return renderer->QueryTexturePixels(renderer, texture, pixels, pitch);
slouken@1895
  1659
}
slouken@1895
  1660
slouken@1895
  1661
int
slouken@1895
  1662
SDL_SetTexturePalette(SDL_TextureID textureID, const SDL_Color * colors,
slouken@1895
  1663
                      int firstcolor, int ncolors)
slouken@1895
  1664
{
slouken@1895
  1665
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1666
    SDL_Renderer *renderer;
slouken@1895
  1667
slouken@1895
  1668
    if (!texture) {
slouken@1895
  1669
        return -1;
slouken@1895
  1670
    }
slouken@1895
  1671
slouken@1895
  1672
    renderer = texture->renderer;
slouken@1895
  1673
    if (!renderer->SetTexturePalette) {
slouken@1895
  1674
        return -1;
slouken@1895
  1675
    }
slouken@1895
  1676
    return renderer->SetTexturePalette(renderer, texture, colors, firstcolor,
slouken@1895
  1677
                                       ncolors);
slouken@1895
  1678
}
slouken@1895
  1679
slouken@1895
  1680
int
slouken@1895
  1681
SDL_GetTexturePalette(SDL_TextureID textureID, SDL_Color * colors,
slouken@1895
  1682
                      int firstcolor, int ncolors)
slouken@1895
  1683
{
slouken@1895
  1684
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1685
    SDL_Renderer *renderer;
slouken@1895
  1686
slouken@1895
  1687
    if (!texture) {
slouken@1895
  1688
        return -1;
slouken@1895
  1689
    }
slouken@1895
  1690
slouken@1895
  1691
    renderer = texture->renderer;
slouken@1895
  1692
    if (!renderer->GetTexturePalette) {
slouken@1895
  1693
        return -1;
slouken@1895
  1694
    }
slouken@1895
  1695
    return renderer->GetTexturePalette(renderer, texture, colors, firstcolor,
slouken@1895
  1696
                                       ncolors);
slouken@1895
  1697
}
slouken@1895
  1698
slouken@1895
  1699
int
slouken@1895
  1700
SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect * rect,
slouken@1895
  1701
                  const void *pixels, int pitch)
slouken@1895
  1702
{
slouken@1895
  1703
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1704
    SDL_Renderer *renderer;
slouken@1895
  1705
    SDL_Rect full_rect;
slouken@1895
  1706
slouken@1895
  1707
    if (!texture) {
slouken@1895
  1708
        return -1;
slouken@1895
  1709
    }
slouken@1895
  1710
slouken@1895
  1711
    renderer = texture->renderer;
slouken@1895
  1712
    if (!renderer->UpdateTexture) {
slouken@1895
  1713
        return -1;
slouken@1895
  1714
    }
slouken@0
  1715
slouken@1895
  1716
    if (!rect) {
slouken@1895
  1717
        full_rect.x = 0;
slouken@1895
  1718
        full_rect.y = 0;
slouken@1895
  1719
        full_rect.w = texture->w;
slouken@1895
  1720
        full_rect.h = texture->h;
slouken@1895
  1721
        rect = &full_rect;
slouken@1895
  1722
    }
slouken@1895
  1723
slouken@1895
  1724
    return renderer->UpdateTexture(renderer, texture, rect, pixels, pitch);
slouken@1895
  1725
}
slouken@1895
  1726
slouken@1895
  1727
int
slouken@1895
  1728
SDL_LockTexture(SDL_TextureID textureID, const SDL_Rect * rect, int markDirty,
slouken@1895
  1729
                void **pixels, int *pitch)
slouken@1895
  1730
{
slouken@1895
  1731
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1732
    SDL_Renderer *renderer;
slouken@1895
  1733
    SDL_Rect full_rect;
slouken@1895
  1734
slouken@1895
  1735
    if (!texture) {
slouken@1895
  1736
        return -1;
slouken@1895
  1737
    }
slouken@1895
  1738
slouken@1895
  1739
    renderer = texture->renderer;
slouken@1895
  1740
    if (!renderer->LockTexture) {
slouken@1895
  1741
        return -1;
slouken@1895
  1742
    }
slouken@1895
  1743
slouken@1895
  1744
    if (!rect) {
slouken@1895
  1745
        full_rect.x = 0;
slouken@1895
  1746
        full_rect.y = 0;
slouken@1895
  1747
        full_rect.w = texture->w;
slouken@1895
  1748
        full_rect.h = texture->h;
slouken@1895
  1749
        rect = &full_rect;
slouken@1895
  1750
    }
slouken@1895
  1751
slouken@1895
  1752
    return renderer->LockTexture(renderer, texture, rect, markDirty, pixels,
slouken@1895
  1753
                                 pitch);
slouken@1895
  1754
}
slouken@1895
  1755
slouken@1895
  1756
void
slouken@1895
  1757
SDL_UnlockTexture(SDL_TextureID textureID)
slouken@1895
  1758
{
slouken@1895
  1759
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1760
    SDL_Renderer *renderer;
slouken@1895
  1761
slouken@1895
  1762
    if (!texture) {
slouken@1895
  1763
        return;
slouken@1895
  1764
    }
slouken@1895
  1765
slouken@1895
  1766
    renderer = texture->renderer;
slouken@1895
  1767
    if (!renderer->UnlockTexture) {
slouken@1895
  1768
        return;
slouken@1895
  1769
    }
slouken@1895
  1770
    renderer->UnlockTexture(renderer, texture);
slouken@1895
  1771
}
slouken@0
  1772
slouken@1895
  1773
void
slouken@1895
  1774
SDL_DirtyTexture(SDL_TextureID textureID, int numrects,
slouken@1895
  1775
                 const SDL_Rect * rects)
slouken@1895
  1776
{
slouken@1895
  1777
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1778
    SDL_Renderer *renderer;
slouken@1895
  1779
slouken@1895
  1780
    if (!texture) {
slouken@1895
  1781
        return;
slouken@1895
  1782
    }
slouken@1895
  1783
slouken@1895
  1784
    renderer = texture->renderer;
slouken@1895
  1785
    if (!renderer->DirtyTexture) {
slouken@1895
  1786
        return;
slouken@1895
  1787
    }
slouken@1895
  1788
    renderer->DirtyTexture(renderer, texture, numrects, rects);
slouken@1895
  1789
}
slouken@1895
  1790
slouken@1895
  1791
int
slouken@1895
  1792
SDL_RenderFill(const SDL_Rect * rect, Uint32 color)
slouken@1895
  1793
{
slouken@1895
  1794
    SDL_Renderer *renderer;
slouken@1895
  1795
    SDL_Window *window;
slouken@1895
  1796
    SDL_Rect real_rect;
slouken@1895
  1797
slouken@1895
  1798
    if (!_this) {
slouken@1912
  1799
        SDL_UninitializedVideo();
slouken@1895
  1800
        return -1;
slouken@1895
  1801
    }
slouken@1895
  1802
slouken@1895
  1803
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1804
    if (!renderer || !renderer->RenderFill) {
slouken@1895
  1805
        return -1;
slouken@1895
  1806
    }
slouken@1895
  1807
slouken@1895
  1808
    window = SDL_GetWindowFromID(renderer->window);
slouken@1895
  1809
    real_rect.x = 0;
slouken@1895
  1810
    real_rect.y = 0;
slouken@1895
  1811
    real_rect.w = window->w;
slouken@1895
  1812
    real_rect.h = window->h;
slouken@1895
  1813
    if (rect) {
slouken@1895
  1814
        if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
slouken@1895
  1815
            return 0;
slouken@1895
  1816
        }
slouken@1895
  1817
    }
slouken@1895
  1818
slouken@1897
  1819
    return renderer->RenderFill(renderer, &real_rect, color);
slouken@0
  1820
}
slouken@0
  1821
slouken@1895
  1822
int
slouken@1895
  1823
SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect * srcrect,
slouken@1895
  1824
               const SDL_Rect * dstrect, int blendMode, int scaleMode)
slouken@0
  1825
{
slouken@1895
  1826
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1827
    SDL_Renderer *renderer;
slouken@1895
  1828
    SDL_Window *window;
slouken@1895
  1829
    SDL_Rect real_srcrect;
slouken@1895
  1830
    SDL_Rect real_dstrect;
slouken@1895
  1831
slouken@1895
  1832
    if (!texture || texture->renderer != SDL_CurrentDisplay.current_renderer) {
slouken@1895
  1833
        return -1;
slouken@1895
  1834
    }
slouken@1895
  1835
slouken@1895
  1836
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1837
    if (!renderer || !renderer->RenderCopy) {
slouken@1895
  1838
        return -1;
slouken@1895
  1839
    }
slouken@0
  1840
slouken@1895
  1841
    window = SDL_GetWindowFromID(renderer->window);
slouken@1897
  1842
    if (srcrect) {
slouken@1897
  1843
        real_srcrect = *srcrect;
slouken@1897
  1844
    } else {
slouken@1897
  1845
        real_srcrect.x = 0;
slouken@1897
  1846
        real_srcrect.y = 0;
slouken@1897
  1847
        real_srcrect.w = texture->w;
slouken@1897
  1848
        real_srcrect.h = texture->h;
slouken@1895
  1849
    }
slouken@1897
  1850
    if (dstrect) {
slouken@1897
  1851
        real_dstrect = *dstrect;
slouken@1897
  1852
    } else {
slouken@1897
  1853
        real_dstrect.x = 0;
slouken@1897
  1854
        real_dstrect.y = 0;
slouken@1897
  1855
        real_dstrect.w = window->w;
slouken@1897
  1856
        real_dstrect.h = window->h;
slouken@1895
  1857
    }
slouken@0
  1858
slouken@1897
  1859
    return renderer->RenderCopy(renderer, texture, &real_srcrect,
slouken@1897
  1860
                                &real_dstrect, blendMode, scaleMode);
slouken@1895
  1861
}
slouken@1895
  1862
slouken@1895
  1863
void
slouken@1895
  1864
SDL_RenderPresent(void)
slouken@1895
  1865
{
slouken@1895
  1866
    SDL_Renderer *renderer;
slouken@1895
  1867
slouken@1895
  1868
    if (!_this) {
slouken@1912
  1869
        SDL_UninitializedVideo();
slouken@1895
  1870
        return;
slouken@1895
  1871
    }
slouken@1895
  1872
slouken@1895
  1873
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1874
    if (!renderer || !renderer->RenderPresent) {
slouken@1895
  1875
        return;
slouken@1895
  1876
    }
slouken@1895
  1877
    renderer->RenderPresent(renderer);
slouken@0
  1878
}
slouken@0
  1879
slouken@1895
  1880
void
slouken@1895
  1881
SDL_DestroyTexture(SDL_TextureID textureID)
slouken@0
  1882
{
slouken@1895
  1883
    int hash;
slouken@1895
  1884
    SDL_Texture *prev, *texture;
slouken@1895
  1885
    SDL_Renderer *renderer;
slouken@1895
  1886
slouken@1895
  1887
    if (!_this) {
slouken@1912
  1888
        SDL_UninitializedVideo();
slouken@1895
  1889
        return;
slouken@1895
  1890
    }
slouken@1895
  1891
slouken@1895
  1892
    /* Look up the texture in the hash table */
slouken@1895
  1893
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1894
    prev = NULL;
slouken@1895
  1895
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@1895
  1896
         prev = texture, texture = texture->next) {
slouken@1895
  1897
        if (texture->id == textureID) {
slouken@1895
  1898
            break;
slouken@1895
  1899
        }
slouken@1895
  1900
    }
slouken@1895
  1901
    if (!texture) {
slouken@1895
  1902
        return;
slouken@1895
  1903
    }
slouken@1895
  1904
slouken@1895
  1905
    /* Unlink the texture from the list */
slouken@1895
  1906
    if (prev) {
slouken@1895
  1907
        prev->next = texture->next;
slouken@1895
  1908
    } else {
slouken@1895
  1909
        SDL_CurrentDisplay.textures[hash] = texture->next;
slouken@1895
  1910
    }
slouken@1895
  1911
slouken@1895
  1912
    /* Free the texture */
slouken@1895
  1913
    renderer = texture->renderer;
slouken@1895
  1914
    renderer->DestroyTexture(renderer, texture);
slouken@1895
  1915
    SDL_free(texture);
slouken@0
  1916
}
slouken@0
  1917
slouken@1895
  1918
void
slouken@1895
  1919
SDL_DestroyRenderer(SDL_WindowID windowID)
slouken@0
  1920
{
slouken@1895
  1921
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1922
    SDL_Renderer *renderer;
slouken@1895
  1923
    int i;
slouken@0
  1924
slouken@1895
  1925
    if (!window) {
slouken@1895
  1926
        return;
slouken@1895
  1927
    }
slouken@1895
  1928
slouken@1895
  1929
    renderer = window->renderer;
slouken@1895
  1930
    if (!renderer) {
slouken@1895
  1931
        return;
slouken@1895
  1932
    }
slouken@0
  1933
slouken@1895
  1934
    /* Free existing textures for this renderer */
slouken@1895
  1935
    for (i = 0; i < SDL_arraysize(SDL_CurrentDisplay.textures); ++i) {
slouken@1895
  1936
        SDL_Texture *texture;
slouken@1895
  1937
        SDL_Texture *prev = NULL;
slouken@1895
  1938
        SDL_Texture *next;
slouken@1895
  1939
        for (texture = SDL_CurrentDisplay.textures[i]; texture;
slouken@1895
  1940
             texture = next) {
slouken@1895
  1941
            next = texture->next;
slouken@1895
  1942
            if (texture->renderer == renderer) {
slouken@1895
  1943
                if (prev) {
slouken@1895
  1944
                    prev->next = next;
slouken@1895
  1945
                } else {
slouken@1895
  1946
                    SDL_CurrentDisplay.textures[i] = next;
slouken@1895
  1947
                }
slouken@1895
  1948
                renderer->DestroyTexture(renderer, texture);
slouken@1895
  1949
                SDL_free(texture);
slouken@1895
  1950
            } else {
slouken@1895
  1951
                prev = texture;
slouken@1895
  1952
            }
slouken@1895
  1953
        }
slouken@1895
  1954
    }
slouken@0
  1955
slouken@1895
  1956
    /* Free the renderer instance */
slouken@1895
  1957
    renderer->DestroyRenderer(renderer);
slouken@0
  1958
slouken@1895
  1959
    /* Clear references */
slouken@1895
  1960
    window->renderer = NULL;
slouken@1895
  1961
    if (SDL_CurrentDisplay.current_renderer == renderer) {
slouken@1895
  1962
        SDL_CurrentDisplay.current_renderer = NULL;
slouken@1895
  1963
    }
slouken@1895
  1964
}
slouken@0
  1965
slouken@1895
  1966
void
slouken@1895
  1967
SDL_VideoQuit(void)
slouken@1895
  1968
{
slouken@1895
  1969
    int i, j;
slouken@0
  1970
slouken@1895
  1971
    if (!_this) {
slouken@1895
  1972
        return;
slouken@1895
  1973
    }
slouken@1895
  1974
slouken@1895
  1975
    /* Halt event processing before doing anything else */
slouken@1895
  1976
    SDL_StopEventLoop();
slouken@1895
  1977
slouken@1895
  1978
    /* Clean up the system video */
slouken@1895
  1979
    for (i = _this->num_displays; i--;) {
slouken@1895
  1980
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  1981
        for (j = display->num_windows; j--;) {
slouken@1895
  1982
            SDL_DestroyWindow(display->windows[i].id);
slouken@1895
  1983
        }
slouken@1895
  1984
        if (display->windows) {
slouken@1895
  1985
            SDL_free(display->windows);
slouken@1895
  1986
            display->windows = NULL;
slouken@1895
  1987
        }
slouken@1895
  1988
        display->num_windows = 0;
slouken@1895
  1989
    }
slouken@1895
  1990
    _this->VideoQuit(_this);
slouken@0
  1991
slouken@1895
  1992
    for (i = _this->num_displays; i--;) {
slouken@1895
  1993
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  1994
        for (j = display->num_display_modes; j--;) {
slouken@1895
  1995
            if (display->display_modes[j].driverdata) {
slouken@1895
  1996
                SDL_free(display->display_modes[j].driverdata);
slouken@1895
  1997
                display->display_modes[j].driverdata = NULL;
slouken@1895
  1998
            }
slouken@1895
  1999
        }
slouken@1895
  2000
        if (display->display_modes) {
slouken@1895
  2001
            SDL_free(display->display_modes);
slouken@1895
  2002
            display->display_modes = NULL;
slouken@1895
  2003
        }
slouken@1895
  2004
        if (display->desktop_mode.driverdata) {
slouken@1895
  2005
            SDL_free(display->desktop_mode.driverdata);
slouken@1895
  2006
            display->desktop_mode.driverdata = NULL;
slouken@1895
  2007
        }
slouken@1895
  2008
        if (display->palette) {
slouken@1895
  2009
            SDL_FreePalette(display->palette);
slouken@1895
  2010
            display->palette = NULL;
slouken@1895
  2011
        }
slouken@1895
  2012
        if (display->gamma) {
slouken@1895
  2013
            SDL_free(display->gamma);
slouken@1895
  2014
        }
slouken@1895
  2015
        if (display->driverdata) {
slouken@1895
  2016
            SDL_free(display->driverdata);
slouken@1895
  2017
        }
slouken@1895
  2018
    }
slouken@1895
  2019
    if (_this->displays) {
slouken@1895
  2020
        SDL_free(_this->displays);
slouken@1895
  2021
        _this->displays = NULL;
slouken@1895
  2022
    }
slouken@1895
  2023
    _this->free(_this);
slouken@1895
  2024
    _this = NULL;
slouken@0
  2025
}
slouken@0
  2026
slouken@1895
  2027
int
slouken@1895
  2028
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2029
{
slouken@1895
  2030
    int retval;
slouken@0
  2031
slouken@1912
  2032
    if (!_this) {
slouken@1912
  2033
        SDL_UninitializedVideo();
slouken@1912
  2034
        return -1;
slouken@1912
  2035
    }
slouken@1912
  2036
slouken@1912
  2037
    if (_this->GL_LoadLibrary) {
slouken@1912
  2038
        retval = _this->GL_LoadLibrary(_this, path);
slouken@1895
  2039
    } else {
slouken@1912
  2040
        SDL_SetError("No dynamic GL support in video driver");
slouken@1912
  2041
        retval = -1;
slouken@1895
  2042
    }
slouken@1895
  2043
    return (retval);
slouken@0
  2044
}
slouken@0
  2045
slouken@1895
  2046
void *
slouken@1895
  2047
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2048
{
slouken@1895
  2049
    void *func;
slouken@0
  2050
slouken@1912
  2051
    if (!_this) {
slouken@1912
  2052
        SDL_UninitializedVideo();
slouken@1912
  2053
        return NULL;
slouken@1912
  2054
    }
slouken@1912
  2055
slouken@1895
  2056
    func = NULL;
slouken@1895
  2057
    if (_this->GL_GetProcAddress) {
slouken@1895
  2058
        if (_this->gl_config.driver_loaded) {
slouken@1895
  2059
            func = _this->GL_GetProcAddress(_this, proc);
slouken@1895
  2060
        } else {
slouken@1895
  2061
            SDL_SetError("No GL driver has been loaded");
slouken@1895
  2062
        }
slouken@1895
  2063
    } else {
slouken@1895
  2064
        SDL_SetError("No dynamic GL support in video driver");
slouken@1895
  2065
    }
slouken@1895
  2066
    return func;
slouken@0
  2067
}
slouken@0
  2068
slouken@1926
  2069
SDL_bool
slouken@1926
  2070
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2071
{
slouken@1926
  2072
#if SDL_VIDEO_OPENGL
slouken@1926
  2073
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@1926
  2074
    const char *extensions;
slouken@1926
  2075
    const char *start;
slouken@1926
  2076
    const char *where, *terminator;
slouken@1926
  2077
slouken@1926
  2078
    /* Extension names should not have spaces. */
slouken@1926
  2079
    where = SDL_strchr(extension, ' ');
slouken@1926
  2080
    if (where || *extension == '\0') {
slouken@1926
  2081
        return SDL_FALSE;
slouken@1926
  2082
    }
slouken@1926
  2083
slouken@1926
  2084
    /* See if there's an environment variable override */
slouken@1926
  2085
    start = SDL_getenv(extension);
slouken@1926
  2086
    if (start && *start == '0') {
slouken@1926
  2087
        return SDL_FALSE;
slouken@1926
  2088
    }
slouken@1926
  2089
slouken@1926
  2090
    /* Lookup the available extensions */
slouken@1926
  2091
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@1926
  2092
    if (glGetStringFunc) {
slouken@1926
  2093
        extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@1926
  2094
    } else {
slouken@1926
  2095
        extensions = NULL;
slouken@1926
  2096
    }
slouken@1926
  2097
    if (!extensions) {
slouken@1926
  2098
        return SDL_FALSE;
slouken@1926
  2099
    }
slouken@1926
  2100
slouken@1926
  2101
    /* It takes a bit of care to be fool-proof about parsing the
slouken@1926
  2102
     * OpenGL extensions string. Don't be fooled by sub-strings,
slouken@1926
  2103
     * etc. */
slouken@1926
  2104
slouken@1926
  2105
    start = extensions;
slouken@1926
  2106
slouken@1926
  2107
    for (;;) {
slouken@1926
  2108
        where = SDL_strstr(start, extension);
slouken@1926
  2109
        if (!where)
slouken@1926
  2110
            break;
slouken@1926
  2111
slouken@1926
  2112
        terminator = where + SDL_strlen(extension);
slouken@1926
  2113
        if (where == start || *(where - 1) == ' ')
slouken@1926
  2114
            if (*terminator == ' ' || *terminator == '\0')
slouken@1926
  2115
                return SDL_TRUE;
slouken@1926
  2116
slouken@1926
  2117
        start = terminator;
slouken@1926
  2118
    }
slouken@1926
  2119
    return SDL_FALSE;
slouken@1926
  2120
#else
slouken@1926
  2121
    return SDL_FALSE;
slouken@1926
  2122
#endif
slouken@1926
  2123
}
slouken@1926
  2124
slouken@1895
  2125
int
slouken@1895
  2126
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2127
{
slouken@1936
  2128
#if SDL_VIDEO_OPENGL
slouken@1895
  2129
    int retval;
slouken@0
  2130
slouken@1912
  2131
    if (!_this) {
slouken@1912
  2132
        SDL_UninitializedVideo();
slouken@1912
  2133
        return -1;
slouken@1912
  2134
    }
slouken@1912
  2135
slouken@1895
  2136
    retval = 0;
slouken@1895
  2137
    switch (attr) {
slouken@1895
  2138
    case SDL_GL_RED_SIZE:
slouken@1895
  2139
        _this->gl_config.red_size = value;
slouken@1895
  2140
        break;
slouken@1895
  2141
    case SDL_GL_GREEN_SIZE:
slouken@1895
  2142
        _this->gl_config.green_size = value;
slouken@1895
  2143
        break;
slouken@1895
  2144
    case SDL_GL_BLUE_SIZE:
slouken@1895
  2145
        _this->gl_config.blue_size = value;
slouken@1895
  2146
        break;
slouken@1895
  2147
    case SDL_GL_ALPHA_SIZE:
slouken@1895
  2148
        _this->gl_config.alpha_size = value;
slouken@1895
  2149
        break;
slouken@1895
  2150
    case SDL_GL_DOUBLEBUFFER:
slouken@1895
  2151
        _this->gl_config.double_buffer = value;
slouken@1895
  2152
        break;
slouken@1895
  2153
    case SDL_GL_BUFFER_SIZE:
slouken@1895
  2154
        _this->gl_config.buffer_size = value;
slouken@1895
  2155
        break;
slouken@1895
  2156
    case SDL_GL_DEPTH_SIZE:
slouken@1895
  2157
        _this->gl_config.depth_size = value;
slouken@1895
  2158
        break;
slouken@1895
  2159
    case SDL_GL_STENCIL_SIZE:
slouken@1895
  2160
        _this->gl_config.stencil_size = value;
slouken@1895
  2161
        break;
slouken@1895
  2162
    case SDL_GL_ACCUM_RED_SIZE:
slouken@1895
  2163
        _this->gl_config.accum_red_size = value;
slouken@1895
  2164
        break;
slouken@1895
  2165
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@1895
  2166
        _this->gl_config.accum_green_size = value;
slouken@1895
  2167
        break;
slouken@1895
  2168
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@1895
  2169
        _this->gl_config.accum_blue_size = value;
slouken@1895
  2170
        break;
slouken@1895
  2171
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@1895
  2172
        _this->gl_config.accum_alpha_size = value;
slouken@1895
  2173
        break;
slouken@1895
  2174
    case SDL_GL_STEREO:
slouken@1895
  2175
        _this->gl_config.stereo = value;
slouken@1895
  2176
        break;
slouken@1895
  2177
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@1895
  2178
        _this->gl_config.multisamplebuffers = value;
slouken@1895
  2179
        break;
slouken@1895
  2180
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@1895
  2181
        _this->gl_config.multisamplesamples = value;
slouken@1895
  2182
        break;
slouken@1895
  2183
    case SDL_GL_ACCELERATED_VISUAL:
slouken@1895
  2184
        _this->gl_config.accelerated = value;
slouken@1895
  2185
        break;
slouken@1895
  2186
    default:
slouken@1895
  2187
        SDL_SetError("Unknown OpenGL attribute");
slouken@1895
  2188
        retval = -1;
slouken@1895
  2189
        break;
slouken@1895
  2190
    }
slouken@1912
  2191
    return retval;
slouken@1936
  2192
#else
slouken@1936
  2193
    SDL_Unsupported();
slouken@1936
  2194
    return -1;
slouken@1936
  2195
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2196
}
slouken@0
  2197
slouken@1895
  2198
int
slouken@1936
  2199
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2200
{
slouken@1936
  2201
#if SDL_VIDEO_OPENGL
slouken@1936
  2202
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@1936
  2203
    GLenum attrib = 0;
slouken@1912
  2204
slouken@1936
  2205
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@1936
  2206
    if (!glGetIntegervFunc) {
slouken@1936
  2207
        return -1;
slouken@1936
  2208
    }
slouken@1936
  2209
    switch (attr) {
slouken@1936
  2210
    case SDL_GL_RED_SIZE:
slouken@1936
  2211
        attrib = GL_RED_BITS;
slouken@1936
  2212
        break;
slouken@1936
  2213
    case SDL_GL_BLUE_SIZE:
slouken@1936
  2214
        attrib = GL_BLUE_BITS;
slouken@1936
  2215
        break;
slouken@1936
  2216
    case SDL_GL_GREEN_SIZE:
slouken@1936
  2217
        attrib = GL_GREEN_BITS;
slouken@1936
  2218
        break;
slouken@1936
  2219
    case SDL_GL_ALPHA_SIZE:
slouken@1936
  2220
        attrib = GL_ALPHA_BITS;
slouken@1936
  2221
        break;
slouken@1936
  2222
    case SDL_GL_DOUBLEBUFFER:
slouken@1936
  2223
        attrib = GL_DOUBLEBUFFER;
slouken@1936
  2224
        break;
slouken@1936
  2225
    case SDL_GL_DEPTH_SIZE:
slouken@1936
  2226
        attrib = GL_DEPTH_BITS;
slouken@1936
  2227
        break;
slouken@1936
  2228
    case SDL_GL_STENCIL_SIZE:
slouken@1936
  2229
        attrib = GL_STENCIL_BITS;
slouken@1936
  2230
        break;
slouken@1936
  2231
    case SDL_GL_ACCUM_RED_SIZE:
slouken@1936
  2232
        attrib = GL_ACCUM_RED_BITS;
slouken@1936
  2233
        break;
slouken@1936
  2234
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@1936
  2235
        attrib = GL_ACCUM_GREEN_BITS;
slouken@1936
  2236
        break;
slouken@1936
  2237
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@1936
  2238
        attrib = GL_ACCUM_BLUE_BITS;
slouken@1936
  2239
        break;
slouken@1936
  2240
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@1936
  2241
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@1936
  2242
        break;
slouken@1936
  2243
    case SDL_GL_STEREO:
slouken@1936
  2244
        attrib = GL_STEREO;
slouken@1936
  2245
        break;
slouken@1936
  2246
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@1936
  2247
        attrib = GL_SAMPLE_BUFFERS_ARB;
slouken@1936
  2248
        break;
slouken@1936
  2249
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@1936
  2250
        attrib = GL_SAMPLES_ARB;
slouken@1936
  2251
        break;
slouken@1936
  2252
    case SDL_GL_BUFFER_SIZE:
slouken@1936
  2253
        {
slouken@1936
  2254
            GLint bits = 0;
slouken@1936
  2255
            GLint component;
slouken@1936
  2256
slouken@1936
  2257
            /* there doesn't seem to be a single flag in OpenGL for this! */
slouken@1938
  2258
            glGetIntegervFunc(GL_RED_BITS, &component);
slouken@1936
  2259
            bits += component;
slouken@1938
  2260
            glGetIntegervFunc(GL_GREEN_BITS, &component);
slouken@1936
  2261
            bits += component;
slouken@1938
  2262
            glGetIntegervFunc(GL_BLUE_BITS, &component);
slouken@1936
  2263
            bits += component;
slouken@1938
  2264
            glGetIntegervFunc(GL_ALPHA_BITS, &component);
slouken@1936
  2265
            bits += component;
slouken@1936
  2266
slouken@1936
  2267
            *value = bits;
slouken@1936
  2268
            return 0;
slouken@1936
  2269
        }
slouken@1936
  2270
    case SDL_GL_ACCELERATED_VISUAL:
slouken@1936
  2271
        {
slouken@1936
  2272
            /* FIXME: How do we get this information? */
slouken@1936
  2273
            *value = (_this->gl_config.accelerated != 0);
slouken@1936
  2274
            return 0;
slouken@1936
  2275
        }
slouken@1936
  2276
    default:
slouken@1936
  2277
        SDL_SetError("Unknown OpenGL attribute");
slouken@1912
  2278
        return -1;
slouken@1912
  2279
    }
slouken@0
  2280
slouken@1938
  2281
    glGetIntegervFunc(attrib, (GLint *) value);
slouken@1936
  2282
    return 0;
slouken@1936
  2283
#else
slouken@1936
  2284
    SDL_Unsupported();
slouken@1936
  2285
    return -1;
slouken@1936
  2286
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2287
}
slouken@0
  2288
slouken@1912
  2289
SDL_GLContext
slouken@1912
  2290
SDL_GL_CreateContext(SDL_WindowID windowID)
slouken@1912
  2291
{
slouken@1912
  2292
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2293
slouken@1912
  2294
    if (!window) {
slouken@1912
  2295
        return NULL;
slouken@1912
  2296
    }
slouken@1912
  2297
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@1912
  2298
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@1912
  2299
        return NULL;
slouken@1912
  2300
    }
slouken@1912
  2301
    return _this->GL_CreateContext(_this, window);
slouken@1912
  2302
}
slouken@1912
  2303
slouken@1912
  2304
int
slouken@1912
  2305
SDL_GL_MakeCurrent(SDL_WindowID windowID, SDL_GLContext context)
slouken@1912
  2306
{
slouken@1912
  2307
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2308
slouken@1913
  2309
    if (window && !(window->flags & SDL_WINDOW_OPENGL)) {
slouken@1912
  2310
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@1912
  2311
        return -1;
slouken@1912
  2312
    }
slouken@1936
  2313
    if (!context) {
slouken@1936
  2314
        window = NULL;
slouken@1936
  2315
    }
slouken@1912
  2316
    return _this->GL_MakeCurrent(_this, window, context);
slouken@1912
  2317
}
slouken@1912
  2318
slouken@1912
  2319
int
slouken@1912
  2320
SDL_GL_SetSwapInterval(int interval)
slouken@1912
  2321
{
slouken@1912
  2322
    if (!_this) {
slouken@1912
  2323
        SDL_UninitializedVideo();
slouken@1912
  2324
        return -1;
slouken@1912
  2325
    }
slouken@1912
  2326
slouken@1912
  2327
    if (_this->GL_SetSwapInterval) {
slouken@1912
  2328
        return _this->GL_SetSwapInterval(_this, interval);
slouken@1912
  2329
    } else {
slouken@1912
  2330
        SDL_SetError("Setting the swap interval is not supported");
slouken@1912
  2331
        return -1;
slouken@1912
  2332
    }
slouken@1912
  2333
}
slouken@1912
  2334
slouken@1912
  2335
int
slouken@1912
  2336
SDL_GL_GetSwapInterval(void)
slouken@1912
  2337
{
slouken@1912
  2338
    if (!_this) {
slouken@1912
  2339
        SDL_UninitializedVideo();
slouken@1912
  2340
        return -1;
slouken@1912
  2341
    }
slouken@1912
  2342
slouken@1912
  2343
    if (_this->GL_GetSwapInterval) {
slouken@1912
  2344
        return _this->GL_GetSwapInterval(_this);
slouken@1912
  2345
    } else {
slouken@1912
  2346
        SDL_SetError("Getting the swap interval is not supported");
slouken@1912
  2347
        return -1;
slouken@1912
  2348
    }
slouken@1912
  2349
}
slouken@1912
  2350
slouken@1895
  2351
void
slouken@1912
  2352
SDL_GL_SwapWindow(SDL_WindowID windowID)
slouken@0
  2353
{
slouken@1912
  2354
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2355
slouken@1912
  2356
    if (!window) {
slouken@1912
  2357
        return;
slouken@1912
  2358
    }
slouken@1912
  2359
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@1912
  2360
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@1912
  2361
        return;
slouken@1912
  2362
    }
slouken@1930
  2363
    _this->GL_SwapWindow(_this, window);
slouken@1912
  2364
}
slouken@1912
  2365
slouken@1912
  2366
void
slouken@1912
  2367
SDL_GL_DeleteContext(SDL_GLContext context)
slouken@1912
  2368
{
slouken@1912
  2369
    if (!_this || !context) {
slouken@1912
  2370
        return;
slouken@1912
  2371
    }
slouken@1936
  2372
    _this->GL_MakeCurrent(_this, NULL, NULL);
slouken@1912
  2373
    _this->GL_DeleteContext(_this, context);
slouken@0
  2374
}
slouken@0
  2375
slouken@1895
  2376
#if 0                           // FIXME
slouken@541
  2377
/* Utility function used by SDL_WM_SetIcon();
slouken@541
  2378
 * flags & 1 for color key, flags & 2 for alpha channel. */
slouken@1895
  2379
static void
slouken@1895
  2380
CreateMaskFromColorKeyOrAlpha(SDL_Surface * icon, Uint8 * mask, int flags)
slouken@0
  2381
{
slouken@1895
  2382
    int x, y;
slouken@1895
  2383
    Uint32 colorkey;
slouken@0
  2384
#define SET_MASKBIT(icon, x, y, mask) \
slouken@0
  2385
	mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8)))
slouken@0
  2386
slouken@1895
  2387
    colorkey = icon->format->colorkey;
slouken@1895
  2388
    switch (icon->format->BytesPerPixel) {
slouken@1895
  2389
    case 1:
slouken@1895
  2390
        {
slouken@1895
  2391
            Uint8 *pixels;
slouken@1895
  2392
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2393
                pixels = (Uint8 *) icon->pixels + y * icon->pitch;
slouken@1895
  2394
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2395
                    if (*pixels++ == colorkey) {
slouken@1895
  2396
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2397
                    }
slouken@1895
  2398
                }
slouken@1895
  2399
            }
slouken@1895
  2400
        }
slouken@1895
  2401
        break;
slouken@0
  2402
slouken@1895
  2403
    case 2:
slouken@1895
  2404
        {
slouken@1895
  2405
            Uint16 *pixels;
slouken@1895
  2406
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2407
                pixels = (Uint16 *) icon->pixels + y * icon->pitch / 2;
slouken@1895
  2408
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2409
                    if ((flags & 1) && *pixels == colorkey) {
slouken@1895
  2410
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2411
                    } else if ((flags & 2)
slouken@1895
  2412
                               && (*pixels & icon->format->Amask) == 0) {
slouken@1895
  2413
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2414
                    }
slouken@1895
  2415
                    pixels++;
slouken@1895
  2416
                }
slouken@1895
  2417
            }
slouken@1895
  2418
        }
slouken@1895
  2419
        break;
slouken@0
  2420
slouken@1895
  2421
    case 4:
slouken@1895
  2422
        {
slouken@1895
  2423
            Uint32 *pixels;
slouken@1895
  2424
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2425
                pixels = (Uint32 *) icon->pixels + y * icon->pitch / 4;
slouken@1895
  2426
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2427
                    if ((flags & 1) && *pixels == colorkey) {
slouken@1895
  2428
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2429
                    } else if ((flags & 2)
slouken@1895
  2430
                               && (*pixels & icon->format->Amask) == 0) {
slouken@1895
  2431
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2432
                    }
slouken@1895
  2433
                    pixels++;
slouken@1895
  2434
                }
slouken@1895
  2435
            }
slouken@1895
  2436
        }
slouken@1895
  2437
        break;
slouken@1895
  2438
    }
slouken@0
  2439
}
slouken@0
  2440
slouken@0
  2441
/*
slouken@0
  2442
 * Sets the window manager icon for the display window.
slouken@0
  2443
 */
slouken@1895
  2444
void
slouken@1895
  2445
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
slouken@0
  2446
{
slouken@1895
  2447
    if (icon && _this->SetIcon) {
slouken@1895
  2448
        /* Generate a mask if necessary, and create the icon! */
slouken@1895
  2449
        if (mask == NULL) {
slouken@1895
  2450
            int mask_len = icon->h * (icon->w + 7) / 8;
slouken@1895
  2451
            int flags = 0;
slouken@1895
  2452
            mask = (Uint8 *) SDL_malloc(mask_len);
slouken@1895
  2453
            if (mask == NULL) {
slouken@1895
  2454
                return;
slouken@1895
  2455
            }
slouken@1895
  2456
            SDL_memset(mask, ~0, mask_len);
slouken@1895
  2457
            if (icon->flags & SDL_SRCCOLORKEY)
slouken@1895
  2458
                flags |= 1;
slouken@1895
  2459
            if (icon->flags & SDL_SRCALPHA)
slouken@1895
  2460
                flags |= 2;
slouken@1895
  2461
            if (flags) {
slouken@1895
  2462
                CreateMaskFromColorKeyOrAlpha(icon, mask, flags);
slouken@1895
  2463
            }
slouken@1895
  2464
            _this->SetIcon(_this, icon, mask);
slouken@1895
  2465
            SDL_free(mask);
slouken@1895
  2466
        } else {
slouken@1895
  2467
            _this->SetIcon(_this, icon, mask);
slouken@1895
  2468
        }
slouken@1895
  2469
    }
slouken@0
  2470
}
slouken@0
  2471
#endif
slouken@0
  2472
slouken@1895
  2473
SDL_bool
slouken@1895
  2474
SDL_GetWindowWMInfo(SDL_WindowID windowID, struct SDL_SysWMinfo *info)
slouken@0
  2475
{
slouken@1895
  2476
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@0
  2477
slouken@1895
  2478
    if (!window || !_this->GetWindowWMInfo) {
slouken@1895
  2479
        return SDL_FALSE;
slouken@1895
  2480
    }
slouken@1895
  2481
    return (_this->GetWindowWMInfo(_this, window, info));
slouken@0
  2482
}
slouken@0
  2483
slouken@1895
  2484
/* vi: set ts=4 sw=4 expandtab: */