src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Tue, 25 Jul 2006 07:14:40 +0000
changeset 1938 861893943d53
parent 1936 83946ee0ff1f
child 1941 bf09d535e014
permissions -rw-r--r--
Actually use the function we took the trouble to get the pointer for.
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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_DGA
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    &DGA_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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#if SDL_VIDEO_DRIVER_GLSDL
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    &glSDL_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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   388
    /* Make sure we don't already have the mode in the list */
slouken@1895
   389
    modes = display->display_modes;
slouken@1895
   390
    nmodes = display->num_display_modes;
slouken@1895
   391
    for (i = nmodes; i--;) {
slouken@1895
   392
        if (SDL_memcmp(mode, &modes[i], sizeof(*mode)) == 0) {
slouken@1895
   393
            return SDL_FALSE;
slouken@1895
   394
        }
slouken@1895
   395
    }
slouken@1895
   396
slouken@1895
   397
    /* Go ahead and add the new mode */
slouken@1895
   398
    if (nmodes == display->max_display_modes) {
slouken@1895
   399
        modes =
slouken@1895
   400
            SDL_realloc(modes,
slouken@1895
   401
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@1895
   402
        if (!modes) {
slouken@1895
   403
            return SDL_FALSE;
slouken@1895
   404
        }
slouken@1895
   405
        display->display_modes = modes;
slouken@1895
   406
        display->max_display_modes += 32;
slouken@1895
   407
    }
slouken@1895
   408
    modes[nmodes] = *mode;
slouken@1895
   409
    display->num_display_modes++;
slouken@1895
   410
slouken@1895
   411
    return SDL_TRUE;
slouken@0
   412
}
slouken@0
   413
slouken@1895
   414
int
slouken@1895
   415
SDL_GetNumDisplayModes()
slouken@0
   416
{
slouken@1895
   417
    if (_this) {
slouken@1895
   418
        SDL_VideoDisplay *display = &SDL_CurrentDisplay;
slouken@1895
   419
        if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@1895
   420
            _this->GetDisplayModes(_this);
slouken@1895
   421
            SDL_qsort(display->display_modes, display->num_display_modes,
slouken@1895
   422
                      sizeof(SDL_DisplayMode), cmpmodes);
slouken@1895
   423
        }
slouken@1895
   424
        return display->num_display_modes;
slouken@1895
   425
    }
slouken@1895
   426
    return 0;
slouken@0
   427
}
slouken@0
   428
slouken@1895
   429
const SDL_DisplayMode *
slouken@1895
   430
SDL_GetDisplayMode(int index)
slouken@0
   431
{
slouken@1895
   432
    if (index < 0 || index >= SDL_GetNumDisplayModes()) {
slouken@1895
   433
        SDL_SetError("index must be in the range of 0 - %d",
slouken@1895
   434
                     SDL_GetNumDisplayModes() - 1);
slouken@1895
   435
        return NULL;
slouken@1895
   436
    }
slouken@1895
   437
    return &SDL_CurrentDisplay.display_modes[index];
slouken@0
   438
}
slouken@0
   439
slouken@1895
   440
const SDL_DisplayMode *
slouken@1895
   441
SDL_GetDesktopDisplayMode(void)
slouken@0
   442
{
slouken@1895
   443
    if (_this) {
slouken@1895
   444
        return &SDL_CurrentDisplay.desktop_mode;
slouken@1895
   445
    }
slouken@1895
   446
    return NULL;
slouken@0
   447
}
slouken@0
   448
slouken@1895
   449
const SDL_DisplayMode *
slouken@1895
   450
SDL_GetCurrentDisplayMode(void)
slouken@0
   451
{
slouken@1895
   452
    if (_this) {
slouken@1895
   453
        return &SDL_CurrentDisplay.current_mode;
slouken@1895
   454
    }
slouken@1895
   455
    return NULL;
slouken@0
   456
}
slouken@0
   457
slouken@1895
   458
SDL_DisplayMode *
slouken@1895
   459
SDL_GetClosestDisplayMode(const SDL_DisplayMode * mode,
slouken@1895
   460
                          SDL_DisplayMode * closest)
slouken@0
   461
{
slouken@1895
   462
    Uint32 target_format;
slouken@1895
   463
    int target_refresh_rate;
slouken@1895
   464
    int i;
slouken@1895
   465
    SDL_DisplayMode *current, *match;
slouken@0
   466
slouken@1895
   467
    if (!_this || !mode || !closest) {
slouken@1895
   468
        return NULL;
slouken@1895
   469
    }
slouken@0
   470
slouken@1895
   471
    /* Default to the desktop format */
slouken@1895
   472
    if (mode->format) {
slouken@1895
   473
        target_format = mode->format;
slouken@1895
   474
    } else {
slouken@1895
   475
        target_format = SDL_CurrentDisplay.desktop_mode.format;
slouken@1895
   476
    }
slouken@0
   477
slouken@1895
   478
    /* Default to the desktop refresh rate */
slouken@1895
   479
    if (mode->refresh_rate) {
slouken@1895
   480
        target_refresh_rate = mode->refresh_rate;
slouken@1895
   481
    } else {
slouken@1895
   482
        target_refresh_rate = SDL_CurrentDisplay.desktop_mode.refresh_rate;
slouken@1895
   483
    }
slouken@0
   484
slouken@1895
   485
    match = NULL;
slouken@1895
   486
    for (i = 0; i < SDL_GetNumDisplayModes(); ++i) {
slouken@1895
   487
        current = &SDL_CurrentDisplay.display_modes[i];
slouken@1895
   488
slouken@1895
   489
        if ((current->w && current->h) &&
slouken@1895
   490
            (current->w < mode->w || current->h < mode->h)) {
slouken@1895
   491
            /* Out of sorted modes large enough here */
slouken@1895
   492
            break;
slouken@1895
   493
        }
slouken@1895
   494
        if (!match || current->w < match->w || current->h < match->h) {
slouken@1895
   495
            match = current;
slouken@1895
   496
            continue;
slouken@1895
   497
        }
slouken@1895
   498
        if (current->format != match->format) {
slouken@1895
   499
            /* Sorted highest depth to lowest */
slouken@1895
   500
            if (current->format == target_format ||
slouken@1895
   501
                (SDL_BITSPERPIXEL(current->format) >=
slouken@1895
   502
                 SDL_BITSPERPIXEL(target_format)
slouken@1895
   503
                 && SDL_PIXELTYPE(current->format) ==
slouken@1895
   504
                 SDL_PIXELTYPE(target_format))) {
slouken@1895
   505
                match = current;
slouken@1895
   506
            }
slouken@1895
   507
            continue;
slouken@1895
   508
        }
slouken@1895
   509
        if (current->refresh_rate != match->refresh_rate) {
slouken@1895
   510
            /* Sorted highest refresh to lowest */
slouken@1895
   511
            if (current->refresh_rate >= target_refresh_rate) {
slouken@1895
   512
                match = current;
slouken@1895
   513
            }
slouken@1895
   514
        }
slouken@1895
   515
    }
slouken@1895
   516
    if (match) {
slouken@1895
   517
        if (match->format) {
slouken@1895
   518
            closest->format = match->format;
slouken@1895
   519
        } else {
slouken@1895
   520
            closest->format = mode->format;
slouken@1895
   521
        }
slouken@1895
   522
        if (match->w && match->h) {
slouken@1895
   523
            closest->w = match->w;
slouken@1895
   524
            closest->h = match->h;
slouken@1895
   525
        } else {
slouken@1895
   526
            closest->w = mode->w;
slouken@1895
   527
            closest->h = mode->h;
slouken@1895
   528
        }
slouken@1895
   529
        if (match->refresh_rate) {
slouken@1895
   530
            closest->refresh_rate = match->refresh_rate;
slouken@1895
   531
        } else {
slouken@1895
   532
            closest->refresh_rate = mode->refresh_rate;
slouken@1895
   533
        }
slouken@1895
   534
        closest->driverdata = match->driverdata;
slouken@1895
   535
slouken@1895
   536
        /* Pick some reasonable defaults if the app and driver don't care */
slouken@1895
   537
        if (!closest->format) {
slouken@1895
   538
            closest->format = SDL_PixelFormat_RGB888;
slouken@1895
   539
        }
slouken@1895
   540
        if (!closest->w) {
slouken@1895
   541
            closest->w = 640;
slouken@1895
   542
        }
slouken@1895
   543
        if (!closest->h) {
slouken@1895
   544
            closest->h = 480;
slouken@1895
   545
        }
slouken@1895
   546
        return closest;
slouken@1895
   547
    }
slouken@1895
   548
    return NULL;
slouken@0
   549
}
slouken@0
   550
slouken@1895
   551
int
slouken@1895
   552
SDL_SetDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   553
{
slouken@1895
   554
    SDL_VideoDisplay *display;
slouken@1895
   555
    SDL_DisplayMode display_mode;
slouken@1895
   556
    int i, ncolors;
slouken@0
   557
slouken@1895
   558
    if (!_this) {
slouken@1912
   559
        SDL_UninitializedVideo();
slouken@1895
   560
        return -1;
slouken@1895
   561
    }
slouken@0
   562
slouken@1895
   563
    if (!mode) {
slouken@1895
   564
        mode = SDL_GetDesktopDisplayMode();
slouken@1895
   565
    }
slouken@1895
   566
    display = &SDL_CurrentDisplay;
slouken@1895
   567
    display_mode = *mode;
slouken@1895
   568
slouken@1895
   569
    /* Default to the current mode */
slouken@1895
   570
    if (!display_mode.format) {
slouken@1895
   571
        display_mode.format = display->current_mode.format;
slouken@1895
   572
    }
slouken@1895
   573
    if (!display_mode.w) {
slouken@1895
   574
        display_mode.w = display->current_mode.w;
slouken@1895
   575
    }
slouken@1895
   576
    if (!display_mode.h) {
slouken@1895
   577
        display_mode.h = display->current_mode.h;
slouken@1895
   578
    }
slouken@1895
   579
    if (!display_mode.refresh_rate) {
slouken@1895
   580
        display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@1895
   581
    }
slouken@1895
   582
slouken@1895
   583
    /* Get a good video mode, the closest one possible */
slouken@1895
   584
    if (!SDL_GetClosestDisplayMode(&display_mode, &display_mode)) {
slouken@1895
   585
        SDL_SetError("No video mode large enough for %dx%d",
slouken@1895
   586
                     display_mode.w, display_mode.h);
slouken@1895
   587
        return -1;
slouken@1895
   588
    }
slouken@1895
   589
slouken@1895
   590
    /* See if there's anything left to do */
slouken@1895
   591
    if (SDL_memcmp
slouken@1895
   592
        (&display_mode, SDL_GetCurrentDisplayMode(),
slouken@1895
   593
         sizeof(display_mode)) == 0) {
slouken@1895
   594
        return 0;
slouken@1895
   595
    }
slouken@1895
   596
slouken@1895
   597
    /* Actually change the display mode */
slouken@1895
   598
    if (_this->SetDisplayMode(_this, &display_mode) < 0) {
slouken@1895
   599
        return -1;
slouken@1895
   600
    }
slouken@1895
   601
    display->current_mode = display_mode;
slouken@1895
   602
slouken@1895
   603
    /* Set up a palette, if necessary */
slouken@1895
   604
    if (SDL_ISPIXELFORMAT_INDEXED(display_mode.format)) {
slouken@1895
   605
        ncolors = (1 << SDL_BITSPERPIXEL(display_mode.format));
slouken@1895
   606
    } else {
slouken@1895
   607
        ncolors = 0;
slouken@1895
   608
    }
slouken@1895
   609
    if ((!ncolors && display->palette) || (ncolors && !display->palette)
slouken@1895
   610
        || (ncolors && ncolors != display->palette->ncolors)) {
slouken@1895
   611
        if (display->palette) {
slouken@1895
   612
            SDL_FreePalette(display->palette);
slouken@1895
   613
            display->palette = NULL;
slouken@1895
   614
        }
slouken@1895
   615
        if (ncolors) {
slouken@1895
   616
            display->palette = SDL_AllocPalette(ncolors);
slouken@1895
   617
            if (!display->palette) {
slouken@1895
   618
                return -1;
slouken@1895
   619
            }
slouken@1895
   620
            SDL_DitherColors(display->palette->colors,
slouken@1895
   621
                             SDL_BITSPERPIXEL(display_mode.format));
slouken@1895
   622
        }
slouken@1895
   623
    }
slouken@1895
   624
slouken@1895
   625
    /* Move any fullscreen windows into position */
slouken@1895
   626
    for (i = 0; i < display->num_windows; ++i) {
slouken@1895
   627
        SDL_Window *window = &display->windows[i];
slouken@1895
   628
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
   629
            SDL_SetWindowPosition(window->id,
slouken@1895
   630
                                  ((display_mode.w - window->w) / 2),
slouken@1895
   631
                                  ((display_mode.h - window->h) / 2));
slouken@1895
   632
        }
slouken@1895
   633
    }
slouken@1895
   634
slouken@1895
   635
    return 0;
slouken@0
   636
}
slouken@0
   637
slouken@1895
   638
int
slouken@1895
   639
SDL_SetFullscreenDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   640
{
slouken@1895
   641
    SDL_VideoDisplay *display;
slouken@1895
   642
    int i;
slouken@0
   643
slouken@1895
   644
    if (!_this) {
slouken@1912
   645
        SDL_UninitializedVideo();
slouken@1895
   646
        return -1;
slouken@1895
   647
    }
slouken@0
   648
slouken@1895
   649
    display = &SDL_CurrentDisplay;
slouken@1895
   650
    if (mode) {
slouken@1895
   651
        SDL_GetClosestDisplayMode(mode, &display->desired_mode);
slouken@1895
   652
        display->fullscreen_mode = &display->desired_mode;
slouken@1895
   653
    } else {
slouken@1895
   654
        display->fullscreen_mode = NULL;
slouken@1895
   655
    }
slouken@1895
   656
slouken@1895
   657
    /* Actually set the mode if we have a fullscreen window visible */
slouken@1895
   658
    for (i = 0; i < display->num_windows; ++i) {
slouken@1895
   659
        SDL_Window *window = &display->windows[i];
slouken@1895
   660
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
   661
            return SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
   662
        }
slouken@1895
   663
    }
slouken@1895
   664
    return 0;
slouken@0
   665
}
slouken@0
   666
slouken@1895
   667
const SDL_DisplayMode *
slouken@1895
   668
SDL_GetFullscreenDisplayMode(void)
slouken@0
   669
{
slouken@1895
   670
    if (_this) {
slouken@1895
   671
        return SDL_CurrentDisplay.fullscreen_mode;
slouken@1895
   672
    }
slouken@1895
   673
    return NULL;
slouken@0
   674
}
slouken@0
   675
slouken@1895
   676
int
slouken@1895
   677
SDL_SetDisplayPalette(const SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   678
{
slouken@1895
   679
    SDL_Palette *palette;
slouken@1895
   680
    int status = 0;
slouken@0
   681
slouken@1895
   682
    if (!_this) {
slouken@1912
   683
        SDL_UninitializedVideo();
slouken@1895
   684
        return -1;
slouken@1895
   685
    }
slouken@1895
   686
    palette = SDL_CurrentDisplay.palette;
slouken@1895
   687
    if (!palette) {
slouken@1895
   688
        SDL_SetError("Display mode does not have a palette");
slouken@1895
   689
        return -1;
slouken@1895
   690
    }
slouken@0
   691
slouken@1895
   692
    status = SDL_SetPaletteColors(palette, colors, firstcolor, ncolors);
slouken@0
   693
slouken@1895
   694
    if (_this->SetDisplayPalette) {
slouken@1895
   695
        if (_this->SetDisplayPalette(_this, palette) < 0) {
slouken@1895
   696
            status = -1;
slouken@1895
   697
        }
slouken@1895
   698
    }
slouken@1895
   699
    return status;
slouken@0
   700
}
slouken@0
   701
slouken@1895
   702
int
slouken@1895
   703
SDL_GetDisplayPalette(SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   704
{
slouken@1895
   705
    SDL_Palette *palette;
slouken@1895
   706
slouken@1895
   707
    if (!_this) {
slouken@1912
   708
        SDL_UninitializedVideo();
slouken@1895
   709
        return -1;
slouken@1895
   710
    }
slouken@1895
   711
slouken@1895
   712
    palette = SDL_CurrentDisplay.palette;
slouken@1895
   713
    if (!palette->ncolors) {
slouken@1895
   714
        SDL_SetError("Display mode does not have a palette");
slouken@1895
   715
        return -1;
slouken@1895
   716
    }
slouken@1895
   717
slouken@1895
   718
    if (firstcolor < 0 || (firstcolor + ncolors) > palette->ncolors) {
slouken@1895
   719
        SDL_SetError("Palette indices are out of range");
slouken@1895
   720
        return -1;
slouken@1895
   721
    }
slouken@1895
   722
slouken@1895
   723
    SDL_memcpy(colors, &palette->colors[firstcolor],
slouken@1895
   724
               ncolors * sizeof(*colors));
slouken@1895
   725
    return 0;
slouken@0
   726
}
slouken@0
   727
slouken@1895
   728
SDL_WindowID
slouken@1895
   729
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
   730
{
slouken@1895
   731
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@1895
   732
                                  SDL_WINDOW_OPENGL |
slouken@1895
   733
                                  SDL_WINDOW_SHOWN |
slouken@1895
   734
                                  SDL_WINDOW_BORDERLESS |
slouken@1895
   735
                                  SDL_WINDOW_RESIZABLE |
slouken@1895
   736
                                  SDL_WINDOW_MAXIMIZED |
slouken@1895
   737
                                  SDL_WINDOW_MINIMIZED |
slouken@1895
   738
                                  SDL_WINDOW_INPUT_GRABBED);
slouken@1895
   739
    SDL_VideoDisplay *display;
slouken@1895
   740
    SDL_Window window;
slouken@1895
   741
    int num_windows;
slouken@1895
   742
    SDL_Window *windows;
slouken@0
   743
slouken@1895
   744
    if (!_this) {
slouken@1912
   745
        SDL_UninitializedVideo();
slouken@1912
   746
        return 0;
slouken@1912
   747
    }
slouken@1912
   748
slouken@1912
   749
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@1912
   750
        SDL_SetError("No OpenGL support in video driver");
slouken@1895
   751
        return 0;
slouken@1895
   752
    }
slouken@0
   753
slouken@1895
   754
    SDL_zero(window);
slouken@1895
   755
    window.id = _this->next_object_id++;
slouken@1895
   756
    window.title = title ? SDL_strdup(title) : NULL;
slouken@1895
   757
    window.x = x;
slouken@1895
   758
    window.y = y;
slouken@1895
   759
    window.w = w;
slouken@1895
   760
    window.h = h;
slouken@1895
   761
    window.flags = (flags & allowed_flags);
slouken@1895
   762
    window.display = _this->current_display;
slouken@0
   763
slouken@1895
   764
    if (_this->CreateWindow && _this->CreateWindow(_this, &window) < 0) {
slouken@1895
   765
        if (window.title) {
slouken@1895
   766
            SDL_free(window.title);
slouken@1895
   767
        }
slouken@1895
   768
        return 0;
slouken@1895
   769
    }
slouken@0
   770
slouken@1895
   771
    display = &SDL_CurrentDisplay;
slouken@1895
   772
    num_windows = display->num_windows;
slouken@1895
   773
    windows =
slouken@1895
   774
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@1895
   775
    if (!windows) {
slouken@1895
   776
        if (_this->DestroyWindow) {
slouken@1895
   777
            _this->DestroyWindow(_this, &window);
slouken@1895
   778
        }
slouken@1895
   779
        if (window.title) {
slouken@1895
   780
            SDL_free(window.title);
slouken@1895
   781
        }
slouken@1895
   782
        return 0;
slouken@1895
   783
    }
slouken@1895
   784
    windows[num_windows] = window;
slouken@1895
   785
    display->windows = windows;
slouken@1895
   786
    display->num_windows++;
slouken@0
   787
slouken@1895
   788
    if (FULLSCREEN_VISIBLE(&window)) {
slouken@1895
   789
        /* Hide any other fullscreen windows */
slouken@1895
   790
        int i;
slouken@1895
   791
        for (i = 0; i < display->num_windows; ++i) {
slouken@1895
   792
            SDL_Window *other = &display->windows[i];
slouken@1895
   793
            if (other->id != window.id && FULLSCREEN_VISIBLE(other)) {
slouken@1895
   794
                SDL_MinimizeWindow(other->id);
slouken@1895
   795
            }
slouken@1895
   796
        }
slouken@1895
   797
        SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
   798
    }
slouken@0
   799
slouken@1895
   800
    return window.id;
slouken@1895
   801
}
slouken@0
   802
slouken@1895
   803
SDL_WindowID
slouken@1895
   804
SDL_CreateWindowFrom(const void *data)
slouken@1895
   805
{
slouken@1895
   806
    SDL_VideoDisplay *display;
slouken@1895
   807
    SDL_Window window;
slouken@1895
   808
    int num_windows;
slouken@1895
   809
    SDL_Window *windows;
slouken@0
   810
slouken@1895
   811
    if (!_this) {
slouken@1912
   812
        SDL_UninitializedVideo();
slouken@1895
   813
        return (0);
slouken@1895
   814
    }
slouken@1895
   815
slouken@1895
   816
    SDL_zero(window);
slouken@1895
   817
    window.id = _this->next_object_id++;
slouken@1895
   818
    window.display = _this->current_display;
slouken@1895
   819
slouken@1895
   820
    if (!_this->CreateWindowFrom ||
slouken@1895
   821
        _this->CreateWindowFrom(_this, &window, data) < 0) {
slouken@1895
   822
        return 0;
slouken@1895
   823
    }
slouken@1895
   824
slouken@1895
   825
    display = &SDL_CurrentDisplay;
slouken@1895
   826
    num_windows = display->num_windows;
slouken@1895
   827
    windows =
slouken@1895
   828
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@1895
   829
    if (!windows) {
slouken@1895
   830
        if (_this->DestroyWindow) {
slouken@1895
   831
            _this->DestroyWindow(_this, &window);
slouken@1895
   832
        }
slouken@1895
   833
        if (window.title) {
slouken@1895
   834
            SDL_free(window.title);
slouken@1895
   835
        }
slouken@1895
   836
        return 0;
slouken@1895
   837
    }
slouken@1895
   838
    windows[num_windows] = window;
slouken@1895
   839
    display->windows = windows;
slouken@1895
   840
    display->num_windows++;
slouken@1895
   841
slouken@1895
   842
    return window.id;
slouken@1895
   843
}
slouken@1895
   844
slouken@1924
   845
int
slouken@1928
   846
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
   847
{
slouken@1928
   848
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@1924
   849
        SDL_SetError("No OpenGL support in video driver");
slouken@1924
   850
        return -1;
slouken@1924
   851
    }
slouken@1924
   852
    if (_this->DestroyWindow) {
slouken@1924
   853
        _this->DestroyWindow(_this, window);
slouken@1924
   854
    }
slouken@1928
   855
    window->flags = flags;
slouken@1924
   856
    return _this->CreateWindow(_this, window);
slouken@1924
   857
}
slouken@1924
   858
slouken@1895
   859
SDL_Window *
slouken@1895
   860
SDL_GetWindowFromID(SDL_WindowID windowID)
slouken@1895
   861
{
slouken@1895
   862
    int i, j;
slouken@1895
   863
slouken@1895
   864
    if (!_this) {
slouken@1912
   865
        SDL_UninitializedVideo();
slouken@1895
   866
        return NULL;
slouken@1895
   867
    }
slouken@1895
   868
slouken@1895
   869
    for (i = 0; i < _this->num_displays; ++i) {
slouken@1895
   870
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
   871
        for (j = 0; j < display->num_windows; ++j) {
slouken@1895
   872
            SDL_Window *window = &display->windows[j];
slouken@1895
   873
            if (window->id == windowID) {
slouken@1895
   874
                return window;
slouken@1895
   875
            }
slouken@1895
   876
        }
slouken@1895
   877
    }
slouken@1895
   878
    return NULL;
slouken@1895
   879
}
slouken@1895
   880
slouken@1895
   881
SDL_VideoDisplay *
slouken@1895
   882
SDL_GetDisplayFromWindow(SDL_Window * window)
slouken@1895
   883
{
slouken@1895
   884
    if (!_this) {
slouken@1912
   885
        SDL_UninitializedVideo();
slouken@1895
   886
        return NULL;
slouken@1895
   887
    }
slouken@1895
   888
    return &_this->displays[window->display];
slouken@1895
   889
}
slouken@1895
   890
slouken@1895
   891
Uint32
slouken@1895
   892
SDL_GetWindowFlags(SDL_WindowID windowID)
slouken@1895
   893
{
slouken@1895
   894
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   895
slouken@1895
   896
    if (!window) {
slouken@1895
   897
        return 0;
slouken@1895
   898
    }
slouken@1895
   899
    return window->flags;
slouken@1895
   900
}
slouken@1895
   901
slouken@1895
   902
void
slouken@1895
   903
SDL_SetWindowTitle(SDL_WindowID windowID, const char *title)
slouken@1895
   904
{
slouken@1895
   905
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   906
slouken@1895
   907
    if (!window) {
slouken@1895
   908
        return;
slouken@1895
   909
    }
slouken@1895
   910
    if (window->title) {
slouken@1895
   911
        SDL_free(window->title);
slouken@1895
   912
    }
slouken@1895
   913
    window->title = SDL_strdup(title);
slouken@1895
   914
slouken@1895
   915
    if (_this->SetWindowTitle) {
slouken@1895
   916
        _this->SetWindowTitle(_this, window);
slouken@1895
   917
    }
slouken@1895
   918
}
slouken@1895
   919
slouken@1895
   920
const char *
slouken@1895
   921
SDL_GetWindowTitle(SDL_WindowID windowID)
slouken@1895
   922
{
slouken@1895
   923
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   924
slouken@1895
   925
    if (!window) {
slouken@1895
   926
        return NULL;
slouken@1895
   927
    }
slouken@1895
   928
    return window->title;
slouken@1895
   929
}
slouken@1895
   930
slouken@1895
   931
void
slouken@1895
   932
SDL_SetWindowData(SDL_WindowID windowID, void *userdata)
slouken@1895
   933
{
slouken@1895
   934
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   935
slouken@1895
   936
    if (!window) {
slouken@1895
   937
        return;
slouken@1895
   938
    }
slouken@1895
   939
    window->userdata = userdata;
slouken@1895
   940
}
slouken@1895
   941
slouken@1895
   942
void *
slouken@1895
   943
SDL_GetWindowData(SDL_WindowID windowID)
slouken@1895
   944
{
slouken@1895
   945
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   946
slouken@1895
   947
    if (!window) {
slouken@1895
   948
        return NULL;
slouken@1895
   949
    }
slouken@1895
   950
    return window->userdata;
slouken@1895
   951
}
slouken@1895
   952
slouken@1895
   953
void
slouken@1895
   954
SDL_SetWindowPosition(SDL_WindowID windowID, int x, int y)
slouken@1895
   955
{
slouken@1895
   956
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   957
slouken@1895
   958
    if (!window) {
slouken@1895
   959
        return;
slouken@1895
   960
    }
slouken@1895
   961
slouken@1895
   962
    if (x != SDL_WINDOWPOS_UNDEFINED) {
slouken@1895
   963
        window->x = x;
slouken@1895
   964
    }
slouken@1895
   965
    if (y != SDL_WINDOWPOS_UNDEFINED) {
slouken@1895
   966
        window->y = y;
slouken@1895
   967
    }
slouken@1895
   968
slouken@1895
   969
    if (_this->SetWindowPosition) {
slouken@1895
   970
        _this->SetWindowPosition(_this, window);
slouken@1895
   971
    }
slouken@1895
   972
}
slouken@1895
   973
slouken@1895
   974
void
slouken@1895
   975
SDL_GetWindowPosition(SDL_WindowID windowID, int *x, int *y)
slouken@1895
   976
{
slouken@1895
   977
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   978
slouken@1895
   979
    if (!window) {
slouken@1895
   980
        return;
slouken@1895
   981
    }
slouken@1895
   982
    if (x) {
slouken@1895
   983
        *x = window->x;
slouken@1895
   984
    }
slouken@1895
   985
    if (y) {
slouken@1895
   986
        *y = window->y;
slouken@1895
   987
    }
slouken@1895
   988
}
slouken@1895
   989
slouken@1895
   990
void
slouken@1895
   991
SDL_SetWindowSize(SDL_WindowID windowID, int w, int h)
slouken@1895
   992
{
slouken@1895
   993
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   994
slouken@1895
   995
    if (!window) {
slouken@1895
   996
        return;
slouken@1895
   997
    }
slouken@1895
   998
slouken@1895
   999
    window->w = w;
slouken@1895
  1000
    window->h = h;
slouken@1895
  1001
slouken@1895
  1002
    if (_this->SetWindowSize) {
slouken@1895
  1003
        _this->SetWindowSize(_this, window);
slouken@1895
  1004
    }
slouken@1895
  1005
}
slouken@1895
  1006
slouken@1895
  1007
void
slouken@1895
  1008
SDL_GetWindowSize(SDL_WindowID windowID, int *w, int *h)
slouken@1895
  1009
{
slouken@1895
  1010
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1011
slouken@1895
  1012
    if (!window) {
slouken@1895
  1013
        return;
slouken@1895
  1014
    }
slouken@1895
  1015
    if (w) {
slouken@1895
  1016
        *w = window->w;
slouken@1895
  1017
    }
slouken@1895
  1018
    if (h) {
slouken@1895
  1019
        *h = window->h;
slouken@1895
  1020
    }
slouken@1895
  1021
}
slouken@1895
  1022
slouken@1895
  1023
void
slouken@1895
  1024
SDL_ShowWindow(SDL_WindowID windowID)
slouken@1895
  1025
{
slouken@1895
  1026
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1027
slouken@1895
  1028
    if (!window || (window->flags & SDL_WINDOW_SHOWN)) {
slouken@1895
  1029
        return;
slouken@1895
  1030
    }
slouken@1895
  1031
slouken@1895
  1032
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1033
slouken@1895
  1034
    if (_this->ShowWindow) {
slouken@1895
  1035
        _this->ShowWindow(_this, window);
slouken@1895
  1036
    }
slouken@1895
  1037
}
slouken@1895
  1038
slouken@1895
  1039
void
slouken@1895
  1040
SDL_HideWindow(SDL_WindowID windowID)
slouken@1895
  1041
{
slouken@1895
  1042
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1043
slouken@1895
  1044
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@1895
  1045
        return;
slouken@1895
  1046
    }
slouken@1895
  1047
slouken@1895
  1048
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1049
slouken@1895
  1050
    if (_this->HideWindow) {
slouken@1895
  1051
        _this->HideWindow(_this, window);
slouken@1895
  1052
    }
slouken@1895
  1053
}
slouken@1895
  1054
slouken@1895
  1055
void
slouken@1895
  1056
SDL_RaiseWindow(SDL_WindowID windowID)
slouken@1895
  1057
{
slouken@1895
  1058
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1059
slouken@1895
  1060
    if (!window) {
slouken@1895
  1061
        return;
slouken@1895
  1062
    }
slouken@1895
  1063
slouken@1895
  1064
    if (_this->RaiseWindow) {
slouken@1895
  1065
        _this->RaiseWindow(_this, window);
slouken@1895
  1066
    }
slouken@1895
  1067
}
slouken@1895
  1068
slouken@1895
  1069
void
slouken@1895
  1070
SDL_MaximizeWindow(SDL_WindowID windowID)
slouken@1895
  1071
{
slouken@1895
  1072
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1073
slouken@1895
  1074
    if (!window || (window->flags & SDL_WINDOW_MAXIMIZED)) {
slouken@1895
  1075
        return;
slouken@1895
  1076
    }
slouken@1895
  1077
slouken@1895
  1078
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@1895
  1079
slouken@1895
  1080
    if (_this->MaximizeWindow) {
slouken@1895
  1081
        _this->MaximizeWindow(_this, window);
slouken@1895
  1082
    }
slouken@1895
  1083
}
slouken@1895
  1084
slouken@1895
  1085
void
slouken@1895
  1086
SDL_MinimizeWindow(SDL_WindowID windowID)
slouken@1895
  1087
{
slouken@1895
  1088
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1089
slouken@1895
  1090
    if (!window || (window->flags & SDL_WINDOW_MINIMIZED)) {
slouken@1895
  1091
        return;
slouken@1895
  1092
    }
slouken@1895
  1093
slouken@1895
  1094
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@1895
  1095
slouken@1895
  1096
    if (_this->MinimizeWindow) {
slouken@1895
  1097
        _this->MinimizeWindow(_this, window);
slouken@1895
  1098
    }
slouken@1895
  1099
}
slouken@1895
  1100
slouken@1895
  1101
void
slouken@1895
  1102
SDL_RestoreWindow(SDL_WindowID windowID)
slouken@1895
  1103
{
slouken@1895
  1104
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1105
slouken@1895
  1106
    if (!window
slouken@1895
  1107
        || (window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@1895
  1108
        return;
slouken@1895
  1109
    }
slouken@1895
  1110
slouken@1895
  1111
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@1895
  1112
slouken@1895
  1113
    if (_this->RestoreWindow) {
slouken@1895
  1114
        _this->RestoreWindow(_this, window);
slouken@1895
  1115
    }
slouken@1895
  1116
}
slouken@1895
  1117
slouken@1895
  1118
int
slouken@1895
  1119
SDL_SetWindowFullscreen(SDL_WindowID windowID, int fullscreen)
slouken@1895
  1120
{
slouken@1895
  1121
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1122
slouken@1895
  1123
    if (!window) {
slouken@1895
  1124
        return -1;
slouken@1895
  1125
    }
slouken@1895
  1126
slouken@1895
  1127
    if (fullscreen) {
slouken@1895
  1128
        fullscreen = SDL_WINDOW_FULLSCREEN;
slouken@1895
  1129
    }
slouken@1895
  1130
    if ((window->flags & SDL_WINDOW_FULLSCREEN) == fullscreen) {
slouken@1895
  1131
        return 0;
slouken@1895
  1132
    }
slouken@1895
  1133
slouken@1895
  1134
    if (fullscreen) {
slouken@1895
  1135
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
  1136
slouken@1895
  1137
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
  1138
            SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1139
slouken@1895
  1140
            /* Hide any other fullscreen windows */
slouken@1895
  1141
            int i;
slouken@1895
  1142
            for (i = 0; i < display->num_windows; ++i) {
slouken@1895
  1143
                SDL_Window *other = &display->windows[i];
slouken@1895
  1144
                if (other->id != windowID && FULLSCREEN_VISIBLE(other)) {
slouken@1895
  1145
                    SDL_MinimizeWindow(other->id);
slouken@1895
  1146
                }
slouken@1895
  1147
            }
slouken@1895
  1148
slouken@1895
  1149
            SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
  1150
        }
slouken@1895
  1151
    } else {
slouken@1895
  1152
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@1895
  1153
slouken@1895
  1154
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
  1155
            SDL_SetDisplayMode(NULL);
slouken@1895
  1156
        }
slouken@1895
  1157
    }
slouken@1895
  1158
    return 0;
slouken@1895
  1159
}
slouken@1895
  1160
slouken@1895
  1161
void
slouken@1895
  1162
SDL_SetWindowGrab(SDL_WindowID windowID, int mode)
slouken@1895
  1163
{
slouken@1895
  1164
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1165
slouken@1895
  1166
    if (!window || (!!mode == !!(window->flags & SDL_WINDOW_INPUT_GRABBED))) {
slouken@1895
  1167
        return;
slouken@1895
  1168
    }
slouken@1895
  1169
slouken@1895
  1170
    if (mode) {
slouken@1895
  1171
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@1895
  1172
    } else {
slouken@1895
  1173
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@1895
  1174
    }
slouken@1895
  1175
slouken@1895
  1176
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@1895
  1177
        _this->SetWindowGrab(_this, window);
slouken@1895
  1178
    }
slouken@1895
  1179
}
slouken@1895
  1180
slouken@1895
  1181
int
slouken@1895
  1182
SDL_GetWindowGrab(SDL_WindowID windowID)
slouken@1895
  1183
{
slouken@1895
  1184
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1185
slouken@1895
  1186
    if (!window) {
slouken@1895
  1187
        return 0;
slouken@1895
  1188
    }
slouken@1895
  1189
slouken@1895
  1190
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1191
}
slouken@1895
  1192
slouken@1895
  1193
void
slouken@1895
  1194
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1195
{
slouken@1895
  1196
}
slouken@1895
  1197
slouken@1895
  1198
void
slouken@1895
  1199
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1200
{
slouken@1895
  1201
}
slouken@1895
  1202
slouken@1895
  1203
void
slouken@1895
  1204
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1205
{
slouken@1895
  1206
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1207
slouken@1895
  1208
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@1895
  1209
        SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
  1210
    }
slouken@1895
  1211
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@1895
  1212
        _this->SetDisplayGammaRamp(_this, display->gamma);
slouken@1895
  1213
    }
slouken@1895
  1214
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) && _this->SetWindowGrab) {
slouken@1895
  1215
        _this->SetWindowGrab(_this, window);
slouken@1895
  1216
    }
slouken@1895
  1217
}
slouken@1895
  1218
slouken@1895
  1219
void
slouken@1895
  1220
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1221
{
slouken@1895
  1222
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1223
slouken@1895
  1224
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@1895
  1225
        SDL_MinimizeWindow(window->id);
slouken@1895
  1226
        SDL_SetDisplayMode(NULL);
slouken@1895
  1227
    }
slouken@1895
  1228
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@1895
  1229
        _this->SetDisplayGammaRamp(_this, display->saved_gamma);
slouken@1895
  1230
    }
slouken@1895
  1231
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) && _this->SetWindowGrab) {
slouken@1895
  1232
        _this->SetWindowGrab(_this, window);
slouken@1895
  1233
    }
slouken@1895
  1234
}
slouken@1895
  1235
slouken@1895
  1236
SDL_WindowID
slouken@1895
  1237
SDL_GetFocusWindow(void)
slouken@1895
  1238
{
slouken@1895
  1239
    SDL_VideoDisplay *display;
slouken@1895
  1240
    int i;
slouken@1895
  1241
slouken@1895
  1242
    if (!_this) {
slouken@1895
  1243
        return 0;
slouken@1895
  1244
    }
slouken@1895
  1245
slouken@1895
  1246
    display = &SDL_CurrentDisplay;
slouken@1895
  1247
    for (i = 0; i < display->num_windows; ++i) {
slouken@1895
  1248
        SDL_Window *window = &display->windows[i];
slouken@1895
  1249
slouken@1895
  1250
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@1895
  1251
            return window->id;
slouken@1895
  1252
        }
slouken@1895
  1253
    }
slouken@1895
  1254
    return 0;
slouken@1895
  1255
}
slouken@1895
  1256
slouken@1895
  1257
void
slouken@1895
  1258
SDL_DestroyWindow(SDL_WindowID windowID)
slouken@1895
  1259
{
slouken@1895
  1260
    int i, j;
slouken@1895
  1261
slouken@1895
  1262
    if (!_this) {
slouken@1895
  1263
        return;
slouken@1895
  1264
    }
slouken@1895
  1265
slouken@1895
  1266
    /* Restore video mode, etc. */
slouken@1895
  1267
    SDL_SendWindowEvent(windowID, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@1895
  1268
slouken@1895
  1269
    for (i = 0; i < _this->num_displays; ++i) {
slouken@1895
  1270
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  1271
        for (j = 0; j < display->num_windows; ++j) {
slouken@1895
  1272
            SDL_Window *window = &display->windows[j];
slouken@1895
  1273
            if (window->id != windowID) {
slouken@1895
  1274
                continue;
slouken@1895
  1275
            }
slouken@1895
  1276
            if (window->renderer) {
slouken@1895
  1277
                SDL_DestroyRenderer(window->id);
slouken@1895
  1278
            }
slouken@1895
  1279
            if (_this->DestroyWindow) {
slouken@1895
  1280
                _this->DestroyWindow(_this, window);
slouken@1895
  1281
            }
slouken@1895
  1282
            if (window->title) {
slouken@1895
  1283
                SDL_free(window->title);
slouken@1895
  1284
            }
slouken@1895
  1285
            if (j != display->num_windows - 1) {
slouken@1895
  1286
                SDL_memcpy(&display->windows[i],
slouken@1895
  1287
                           &display->windows[i + 1],
slouken@1895
  1288
                           (display->num_windows - i - 1) * sizeof(*window));
slouken@1895
  1289
            }
slouken@1895
  1290
            --display->num_windows;
slouken@1895
  1291
            return;
slouken@1895
  1292
        }
slouken@1895
  1293
    }
slouken@1895
  1294
}
slouken@1895
  1295
slouken@1895
  1296
void
slouken@1895
  1297
SDL_AddRenderDriver(int displayIndex, const SDL_RenderDriver * driver)
slouken@1895
  1298
{
slouken@1895
  1299
    SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@1895
  1300
    SDL_RenderDriver *render_drivers;
slouken@1895
  1301
slouken@1895
  1302
    render_drivers =
slouken@1895
  1303
        SDL_realloc(display->render_drivers,
slouken@1895
  1304
                    (display->num_render_drivers +
slouken@1895
  1305
                     1) * sizeof(*render_drivers));
slouken@1895
  1306
    if (render_drivers) {
slouken@1895
  1307
        render_drivers[display->num_render_drivers] = *driver;
slouken@1895
  1308
        display->render_drivers = render_drivers;
slouken@1895
  1309
        display->num_render_drivers++;
slouken@1895
  1310
    }
slouken@1895
  1311
}
slouken@1895
  1312
slouken@1895
  1313
int
slouken@1895
  1314
SDL_GetNumRenderers(void)
slouken@1895
  1315
{
slouken@1895
  1316
    if (_this) {
slouken@1895
  1317
        return SDL_CurrentDisplay.num_render_drivers;
slouken@1895
  1318
    }
slouken@1895
  1319
    return 0;
slouken@1895
  1320
}
slouken@1895
  1321
slouken@1895
  1322
int
slouken@1895
  1323
SDL_GetRendererInfo(int index, SDL_RendererInfo * info)
slouken@1895
  1324
{
slouken@1907
  1325
    if (!_this) {
slouken@1912
  1326
        SDL_UninitializedVideo();
slouken@1907
  1327
        return -1;
slouken@1907
  1328
    }
slouken@1907
  1329
slouken@1907
  1330
    if (index >= SDL_GetNumRenderers()) {
slouken@1895
  1331
        SDL_SetError("index must be in the range of 0 - %d",
slouken@1895
  1332
                     SDL_GetNumRenderers() - 1);
slouken@1895
  1333
        return -1;
slouken@1895
  1334
    }
slouken@1907
  1335
    if (index < 0) {
slouken@1907
  1336
        if (!SDL_CurrentDisplay.current_renderer) {
slouken@1907
  1337
            SDL_SetError("There is no current renderer");
slouken@1907
  1338
            return -1;
slouken@1907
  1339
        }
slouken@1907
  1340
        *info = SDL_CurrentDisplay.current_renderer->info;
slouken@1907
  1341
    } else {
slouken@1907
  1342
        *info = SDL_CurrentDisplay.render_drivers[index].info;
slouken@1907
  1343
    }
slouken@1895
  1344
    return 0;
slouken@1895
  1345
}
slouken@1895
  1346
slouken@1895
  1347
int
slouken@1895
  1348
SDL_CreateRenderer(SDL_WindowID windowID, int index, Uint32 flags)
slouken@1895
  1349
{
slouken@1895
  1350
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1351
slouken@1895
  1352
    if (!window) {
slouken@1895
  1353
        return 0;
slouken@1895
  1354
    }
slouken@1895
  1355
slouken@1895
  1356
    if (index < 0) {
slouken@1905
  1357
        const char *override = SDL_getenv("SDL_VIDEO_RENDERER");
slouken@1895
  1358
        int n = SDL_GetNumRenderers();
slouken@1895
  1359
        for (index = 0; index < n; ++index) {
slouken@1895
  1360
            SDL_RenderDriver *driver =
slouken@1895
  1361
                &SDL_CurrentDisplay.render_drivers[index];
slouken@1895
  1362
slouken@1905
  1363
            if (override) {
slouken@1905
  1364
                if (SDL_strcasecmp(override, driver->info.name) == 0) {
slouken@1905
  1365
                    break;
slouken@1905
  1366
                }
slouken@1905
  1367
            } else {
slouken@1905
  1368
                if ((driver->info.flags & flags) == flags) {
slouken@1905
  1369
                    break;
slouken@1905
  1370
                }
slouken@1895
  1371
            }
slouken@1895
  1372
        }
slouken@1895
  1373
        if (index == n) {
slouken@1895
  1374
            SDL_SetError("Couldn't find matching render driver");
slouken@1895
  1375
            return -1;
slouken@1895
  1376
        }
slouken@1895
  1377
    }
slouken@1895
  1378
slouken@1895
  1379
    if (index >= SDL_GetNumRenderers()) {
slouken@1895
  1380
        SDL_SetError("index must be -1 or in the range of 0 - %d",
slouken@1895
  1381
                     SDL_GetNumRenderers() - 1);
slouken@1895
  1382
        return -1;
slouken@1895
  1383
    }
slouken@1895
  1384
slouken@1895
  1385
    /* Free any existing renderer */
slouken@1895
  1386
    SDL_DestroyRenderer(windowID);
slouken@1895
  1387
slouken@1895
  1388
    /* Create a new renderer instance */
slouken@1895
  1389
    window->renderer =
slouken@1895
  1390
        SDL_CurrentDisplay.render_drivers[index].CreateRenderer(window,
slouken@1895
  1391
                                                                flags);
slouken@1923
  1392
    SDL_SelectRenderer(window->id);
slouken@1895
  1393
slouken@1895
  1394
    return 0;
slouken@1895
  1395
}
slouken@1895
  1396
slouken@1895
  1397
int
slouken@1895
  1398
SDL_SelectRenderer(SDL_WindowID windowID)
slouken@1895
  1399
{
slouken@1895
  1400
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1923
  1401
    SDL_Renderer *renderer;
slouken@1895
  1402
slouken@1895
  1403
    if (!window || !window->renderer) {
slouken@1895
  1404
        return -1;
slouken@1895
  1405
    }
slouken@1923
  1406
    renderer = window->renderer;
slouken@1923
  1407
    if (renderer && renderer->ActivateRenderer) {
slouken@1923
  1408
        if (renderer->ActivateRenderer(renderer) < 0) {
slouken@1923
  1409
            return -1;
slouken@1923
  1410
        }
slouken@1923
  1411
    }
slouken@1923
  1412
    SDL_CurrentDisplay.current_renderer = renderer;
slouken@1895
  1413
    return 0;
slouken@1895
  1414
}
slouken@1895
  1415
slouken@1895
  1416
SDL_TextureID
slouken@1895
  1417
SDL_CreateTexture(Uint32 format, int access, int w, int h)
slouken@1895
  1418
{
slouken@1895
  1419
    int hash;
slouken@1895
  1420
    SDL_Renderer *renderer;
slouken@1895
  1421
    SDL_Texture *texture;
slouken@1895
  1422
slouken@1895
  1423
    if (!_this) {
slouken@1912
  1424
        SDL_UninitializedVideo();
slouken@1895
  1425
        return 0;
slouken@1895
  1426
    }
slouken@1895
  1427
slouken@1895
  1428
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1429
    if (!renderer || !renderer->CreateTexture) {
slouken@1895
  1430
        return 0;
slouken@1895
  1431
    }
slouken@1895
  1432
slouken@1920
  1433
    texture = (SDL_Texture *) SDL_calloc(1, sizeof(*texture));
slouken@1895
  1434
    if (!texture) {
slouken@1895
  1435
        SDL_OutOfMemory();
slouken@1895
  1436
        return 0;
slouken@1895
  1437
    }
slouken@1895
  1438
slouken@1895
  1439
    texture->id = _this->next_object_id++;
slouken@1895
  1440
    texture->format = format;
slouken@1895
  1441
    texture->access = access;
slouken@1895
  1442
    texture->w = w;
slouken@1895
  1443
    texture->h = h;
slouken@1895
  1444
    texture->renderer = renderer;
slouken@1895
  1445
slouken@1895
  1446
    if (renderer->CreateTexture(renderer, texture) < 0) {
slouken@1924
  1447
        if (renderer->DestroyTexture) {
slouken@1924
  1448
            renderer->DestroyTexture(renderer, texture);
slouken@1924
  1449
        }
slouken@1895
  1450
        SDL_free(texture);
slouken@1895
  1451
        return 0;
slouken@1895
  1452
    }
slouken@1895
  1453
slouken@1895
  1454
    hash = (texture->id % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1455
    texture->next = SDL_CurrentDisplay.textures[hash];
slouken@1895
  1456
    SDL_CurrentDisplay.textures[hash] = texture;
slouken@1895
  1457
slouken@1895
  1458
    return texture->id;
slouken@1895
  1459
}
slouken@1895
  1460
slouken@1895
  1461
SDL_TextureID
slouken@1895
  1462
SDL_CreateTextureFromSurface(Uint32 format, int access, SDL_Surface * surface)
slouken@1895
  1463
{
slouken@1895
  1464
    SDL_TextureID textureID;
slouken@1895
  1465
    Uint32 surface_flags = surface->flags;
slouken@1895
  1466
    SDL_PixelFormat *fmt = surface->format;
slouken@1895
  1467
    Uint8 alpha;
slouken@1895
  1468
    SDL_Rect bounds;
slouken@1895
  1469
    SDL_Surface dst;
slouken@1895
  1470
    int bpp;
slouken@1895
  1471
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@1895
  1472
slouken@1895
  1473
    if (!surface) {
slouken@1895
  1474
        SDL_SetError("SDL_CreateTextureFromSurface() passed NULL surface");
slouken@1895
  1475
        return 0;
slouken@1895
  1476
    }
slouken@1895
  1477
slouken@1895
  1478
    if (format) {
slouken@1895
  1479
        if (!SDL_PixelFormatEnumToMasks
slouken@1895
  1480
            (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@1895
  1481
            SDL_SetError("Unknown pixel format");
slouken@1895
  1482
            return 0;
slouken@1895
  1483
        }
slouken@1895
  1484
    } else {
slouken@1895
  1485
        if (fmt->Amask || !(surface_flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA))) {
slouken@1895
  1486
            bpp = fmt->BitsPerPixel;
slouken@1895
  1487
            Rmask = fmt->Rmask;
slouken@1895
  1488
            Gmask = fmt->Gmask;
slouken@1895
  1489
            Bmask = fmt->Bmask;
slouken@1895
  1490
            Amask = fmt->Amask;
slouken@1895
  1491
        } else {
slouken@1895
  1492
            /* Need a format with alpha */
slouken@1895
  1493
            bpp = 32;
slouken@1895
  1494
            Rmask = 0x00FF0000;
slouken@1895
  1495
            Gmask = 0x0000FF00;
slouken@1895
  1496
            Bmask = 0x000000FF;
slouken@1895
  1497
            Amask = 0xFF000000;
slouken@1895
  1498
        }
slouken@1895
  1499
        format = SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
slouken@1895
  1500
        if (!format) {
slouken@1895
  1501
            SDL_SetError("Unknown pixel format");
slouken@1895
  1502
            return 0;
slouken@1895
  1503
        }
slouken@1895
  1504
    }
slouken@1895
  1505
slouken@1895
  1506
    textureID = SDL_CreateTexture(format, access, surface->w, surface->h);
slouken@1895
  1507
    if (!textureID) {
slouken@1895
  1508
        return 0;
slouken@1895
  1509
    }
slouken@1895
  1510
slouken@1895
  1511
    /* Set up a destination surface for the texture update */
slouken@1895
  1512
    SDL_zero(dst);
slouken@1895
  1513
    dst.format = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask);
slouken@1895
  1514
    if (!dst.format) {
slouken@1895
  1515
        SDL_DestroyTexture(textureID);
slouken@1895
  1516
        return 0;
slouken@1895
  1517
    }
slouken@1895
  1518
    dst.w = surface->w;
slouken@1895
  1519
    dst.h = surface->h;
slouken@1895
  1520
    if (SDL_LockTexture(textureID, NULL, 1, &dst.pixels, &dst.pitch) == 0) {
slouken@1895
  1521
        dst.flags |= SDL_PREALLOC;
slouken@1895
  1522
    } else {
slouken@1895
  1523
        dst.pitch = SDL_CalculatePitch(&dst);
slouken@1895
  1524
        dst.pixels = SDL_malloc(dst.h * dst.pitch);
slouken@1895
  1525
        if (!dst.pixels) {
slouken@1895
  1526
            SDL_DestroyTexture(textureID);
slouken@1895
  1527
            SDL_FreeFormat(dst.format);
slouken@1895
  1528
            SDL_OutOfMemory();
slouken@1895
  1529
            return 0;
slouken@1895
  1530
        }
slouken@1895
  1531
    }
slouken@1895
  1532
slouken@1895
  1533
    /* Copy the palette if any */
slouken@1895
  1534
    if (SDL_ISPIXELFORMAT_INDEXED(format)) {
slouken@1895
  1535
        if (fmt->palette) {
slouken@1895
  1536
            SDL_SetTexturePalette(textureID, fmt->palette->colors, 0,
slouken@1895
  1537
                                  fmt->palette->ncolors);
slouken@1895
  1538
            SDL_SetSurfacePalette(&dst, fmt->palette);
slouken@1895
  1539
        } else {
slouken@1895
  1540
            dst.format->palette =
slouken@1895
  1541
                SDL_AllocPalette((1 << SDL_BITSPERPIXEL(format)));
slouken@1895
  1542
            if (!dst.format->palette) {
slouken@1895
  1543
                SDL_DestroyTexture(textureID);
slouken@1895
  1544
                SDL_FreeFormat(dst.format);
slouken@1895
  1545
                return 0;
slouken@1895
  1546
            }
slouken@1895
  1547
            SDL_DitherColors(dst.format->palette->colors,
slouken@1895
  1548
                             SDL_BITSPERPIXEL(format));
slouken@1895
  1549
        }
slouken@1895
  1550
    }
slouken@1895
  1551
slouken@1895
  1552
    /* Make the texture transparent if the surface has colorkey */
slouken@1895
  1553
    if (surface_flags & SDL_SRCCOLORKEY) {
slouken@1895
  1554
        int row;
slouken@1895
  1555
        int length = dst.w * dst.format->BytesPerPixel;
slouken@1895
  1556
        Uint8 *p = (Uint8 *) dst.pixels;
slouken@1895
  1557
        for (row = 0; row < dst.h; ++row) {
slouken@1895
  1558
            SDL_memset(p, 0, length);
slouken@1895
  1559
            p += dst.pitch;
slouken@1895
  1560
        }
slouken@1895
  1561
    }
slouken@1895
  1562
slouken@1895
  1563
    /* Copy over the alpha channel */
slouken@1895
  1564
    if (surface_flags & SDL_SRCALPHA) {
slouken@1895
  1565
        if (fmt->Amask) {
slouken@1895
  1566
            surface->flags &= ~SDL_SRCALPHA;
slouken@1895
  1567
        } else {
slouken@1895
  1568
            /* FIXME: Need to make sure the texture has an alpha channel
slouken@1895
  1569
             *        and copy 'alpha' into the texture alpha channel.
slouken@1895
  1570
             */
slouken@1895
  1571
            alpha = surface->format->alpha;
slouken@1895
  1572
            SDL_SetAlpha(surface, 0, 0);
slouken@1895
  1573
        }
slouken@1895
  1574
    }
slouken@1895
  1575
slouken@1895
  1576
    /* Copy over the image data */
slouken@1895
  1577
    bounds.x = 0;
slouken@1895
  1578
    bounds.y = 0;
slouken@1895
  1579
    bounds.w = surface->w;
slouken@1895
  1580
    bounds.h = surface->h;
slouken@1895
  1581
    SDL_LowerBlit(surface, &bounds, &dst, &bounds);
slouken@1895
  1582
slouken@1895
  1583
    /* Clean up the original surface */
slouken@1895
  1584
    if ((surface_flags & SDL_SRCALPHA) == SDL_SRCALPHA) {
slouken@1895
  1585
        Uint32 aflags = surface_flags & (SDL_SRCALPHA | SDL_RLEACCELOK);
slouken@1895
  1586
        if (fmt->Amask) {
slouken@1895
  1587
            surface->flags |= SDL_SRCALPHA;
slouken@1895
  1588
        } else {
slouken@1895
  1589
            SDL_SetAlpha(surface, aflags, alpha);
slouken@1895
  1590
        }
slouken@1895
  1591
    }
slouken@1895
  1592
slouken@1895
  1593
    /* Update the texture */
slouken@1895
  1594
    if (dst.flags & SDL_PREALLOC) {
slouken@1895
  1595
        SDL_UnlockTexture(textureID);
slouken@1895
  1596
    } else {
slouken@1895
  1597
        SDL_UpdateTexture(textureID, NULL, dst.pixels, dst.pitch);
slouken@1895
  1598
        SDL_free(dst.pixels);
slouken@1895
  1599
    }
slouken@1895
  1600
    SDL_FreeFormat(dst.format);
slouken@1895
  1601
slouken@1895
  1602
    return textureID;
slouken@1895
  1603
}
slouken@1895
  1604
slouken@1895
  1605
static __inline__ SDL_Texture *
slouken@1895
  1606
SDL_GetTextureFromID(SDL_TextureID textureID)
slouken@1895
  1607
{
slouken@1895
  1608
    int hash;
slouken@1895
  1609
    SDL_Texture *texture;
slouken@1895
  1610
slouken@1895
  1611
    if (!_this) {
slouken@1895
  1612
        return NULL;
slouken@1895
  1613
    }
slouken@1895
  1614
slouken@1895
  1615
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1616
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@1895
  1617
         texture = texture->next) {
slouken@1895
  1618
        if (texture->id == textureID) {
slouken@1895
  1619
            return texture;
slouken@1895
  1620
        }
slouken@1895
  1621
    }
slouken@1895
  1622
    return NULL;
slouken@1895
  1623
}
slouken@1895
  1624
slouken@1895
  1625
int
slouken@1895
  1626
SDL_QueryTexture(SDL_TextureID textureID, Uint32 * format, int *access,
slouken@1895
  1627
                 int *w, int *h)
slouken@1895
  1628
{
slouken@1895
  1629
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1630
slouken@1895
  1631
    if (!texture) {
slouken@1895
  1632
        return -1;
slouken@1895
  1633
    }
slouken@1895
  1634
slouken@1895
  1635
    if (format) {
slouken@1895
  1636
        *format = texture->format;
slouken@1895
  1637
    }
slouken@1895
  1638
    if (access) {
slouken@1895
  1639
        *access = texture->access;
slouken@1895
  1640
    }
slouken@1895
  1641
    if (w) {
slouken@1895
  1642
        *w = texture->w;
slouken@1895
  1643
    }
slouken@1895
  1644
    if (h) {
slouken@1895
  1645
        *h = texture->h;
slouken@1895
  1646
    }
slouken@1895
  1647
    return 0;
slouken@1895
  1648
}
slouken@1895
  1649
slouken@1895
  1650
int
slouken@1895
  1651
SDL_QueryTexturePixels(SDL_TextureID textureID, void **pixels, int *pitch)
slouken@1895
  1652
{
slouken@1895
  1653
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1654
    SDL_Renderer *renderer;
slouken@1895
  1655
slouken@1895
  1656
    if (!texture) {
slouken@1895
  1657
        return -1;
slouken@1895
  1658
    }
slouken@1895
  1659
slouken@1895
  1660
    renderer = texture->renderer;
slouken@1895
  1661
    if (!renderer->QueryTexturePixels) {
slouken@1895
  1662
        return -1;
slouken@1895
  1663
    }
slouken@1895
  1664
    return renderer->QueryTexturePixels(renderer, texture, pixels, pitch);
slouken@1895
  1665
}
slouken@1895
  1666
slouken@1895
  1667
int
slouken@1895
  1668
SDL_SetTexturePalette(SDL_TextureID textureID, const SDL_Color * colors,
slouken@1895
  1669
                      int firstcolor, int ncolors)
slouken@1895
  1670
{
slouken@1895
  1671
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1672
    SDL_Renderer *renderer;
slouken@1895
  1673
slouken@1895
  1674
    if (!texture) {
slouken@1895
  1675
        return -1;
slouken@1895
  1676
    }
slouken@1895
  1677
slouken@1895
  1678
    renderer = texture->renderer;
slouken@1895
  1679
    if (!renderer->SetTexturePalette) {
slouken@1895
  1680
        return -1;
slouken@1895
  1681
    }
slouken@1895
  1682
    return renderer->SetTexturePalette(renderer, texture, colors, firstcolor,
slouken@1895
  1683
                                       ncolors);
slouken@1895
  1684
}
slouken@1895
  1685
slouken@1895
  1686
int
slouken@1895
  1687
SDL_GetTexturePalette(SDL_TextureID textureID, SDL_Color * colors,
slouken@1895
  1688
                      int firstcolor, int ncolors)
slouken@1895
  1689
{
slouken@1895
  1690
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1691
    SDL_Renderer *renderer;
slouken@1895
  1692
slouken@1895
  1693
    if (!texture) {
slouken@1895
  1694
        return -1;
slouken@1895
  1695
    }
slouken@1895
  1696
slouken@1895
  1697
    renderer = texture->renderer;
slouken@1895
  1698
    if (!renderer->GetTexturePalette) {
slouken@1895
  1699
        return -1;
slouken@1895
  1700
    }
slouken@1895
  1701
    return renderer->GetTexturePalette(renderer, texture, colors, firstcolor,
slouken@1895
  1702
                                       ncolors);
slouken@1895
  1703
}
slouken@1895
  1704
slouken@1895
  1705
int
slouken@1895
  1706
SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect * rect,
slouken@1895
  1707
                  const void *pixels, int pitch)
slouken@1895
  1708
{
slouken@1895
  1709
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1710
    SDL_Renderer *renderer;
slouken@1895
  1711
    SDL_Rect full_rect;
slouken@1895
  1712
slouken@1895
  1713
    if (!texture) {
slouken@1895
  1714
        return -1;
slouken@1895
  1715
    }
slouken@1895
  1716
slouken@1895
  1717
    renderer = texture->renderer;
slouken@1895
  1718
    if (!renderer->UpdateTexture) {
slouken@1895
  1719
        return -1;
slouken@1895
  1720
    }
slouken@1895
  1721
slouken@1895
  1722
    if (!rect) {
slouken@1895
  1723
        full_rect.x = 0;
slouken@1895
  1724
        full_rect.y = 0;
slouken@1895
  1725
        full_rect.w = texture->w;
slouken@1895
  1726
        full_rect.h = texture->h;
slouken@1895
  1727
        rect = &full_rect;
slouken@1895
  1728
    }
slouken@1895
  1729
slouken@1895
  1730
    return renderer->UpdateTexture(renderer, texture, rect, pixels, pitch);
slouken@1895
  1731
}
slouken@1895
  1732
slouken@1895
  1733
int
slouken@1895
  1734
SDL_LockTexture(SDL_TextureID textureID, const SDL_Rect * rect, int markDirty,
slouken@1895
  1735
                void **pixels, int *pitch)
slouken@1895
  1736
{
slouken@1895
  1737
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1738
    SDL_Renderer *renderer;
slouken@1895
  1739
    SDL_Rect full_rect;
slouken@1895
  1740
slouken@1895
  1741
    if (!texture) {
slouken@1895
  1742
        return -1;
slouken@1895
  1743
    }
slouken@1895
  1744
slouken@1895
  1745
    renderer = texture->renderer;
slouken@1895
  1746
    if (!renderer->LockTexture) {
slouken@1895
  1747
        return -1;
slouken@1895
  1748
    }
slouken@1895
  1749
slouken@1895
  1750
    if (!rect) {
slouken@1895
  1751
        full_rect.x = 0;
slouken@1895
  1752
        full_rect.y = 0;
slouken@1895
  1753
        full_rect.w = texture->w;
slouken@1895
  1754
        full_rect.h = texture->h;
slouken@1895
  1755
        rect = &full_rect;
slouken@1895
  1756
    }
slouken@1895
  1757
slouken@1895
  1758
    return renderer->LockTexture(renderer, texture, rect, markDirty, pixels,
slouken@1895
  1759
                                 pitch);
slouken@1895
  1760
}
slouken@1895
  1761
slouken@1895
  1762
void
slouken@1895
  1763
SDL_UnlockTexture(SDL_TextureID textureID)
slouken@1895
  1764
{
slouken@1895
  1765
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1766
    SDL_Renderer *renderer;
slouken@1895
  1767
slouken@1895
  1768
    if (!texture) {
slouken@1895
  1769
        return;
slouken@1895
  1770
    }
slouken@1895
  1771
slouken@1895
  1772
    renderer = texture->renderer;
slouken@1895
  1773
    if (!renderer->UnlockTexture) {
slouken@1895
  1774
        return;
slouken@1895
  1775
    }
slouken@1895
  1776
    renderer->UnlockTexture(renderer, texture);
slouken@1895
  1777
}
slouken@1895
  1778
slouken@1895
  1779
void
slouken@1895
  1780
SDL_DirtyTexture(SDL_TextureID textureID, int numrects,
slouken@1895
  1781
                 const SDL_Rect * rects)
slouken@1895
  1782
{
slouken@1895
  1783
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1784
    SDL_Renderer *renderer;
slouken@1895
  1785
slouken@1895
  1786
    if (!texture) {
slouken@1895
  1787
        return;
slouken@1895
  1788
    }
slouken@1895
  1789
slouken@1895
  1790
    renderer = texture->renderer;
slouken@1895
  1791
    if (!renderer->DirtyTexture) {
slouken@1895
  1792
        return;
slouken@1895
  1793
    }
slouken@1895
  1794
    renderer->DirtyTexture(renderer, texture, numrects, rects);
slouken@1895
  1795
}
slouken@1895
  1796
slouken@1895
  1797
int
slouken@1895
  1798
SDL_RenderFill(const SDL_Rect * rect, Uint32 color)
slouken@1895
  1799
{
slouken@1895
  1800
    SDL_Renderer *renderer;
slouken@1895
  1801
    SDL_Window *window;
slouken@1895
  1802
    SDL_Rect real_rect;
slouken@1895
  1803
slouken@1895
  1804
    if (!_this) {
slouken@1912
  1805
        SDL_UninitializedVideo();
slouken@1895
  1806
        return -1;
slouken@1895
  1807
    }
slouken@1895
  1808
slouken@1895
  1809
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1810
    if (!renderer || !renderer->RenderFill) {
slouken@1895
  1811
        return -1;
slouken@1895
  1812
    }
slouken@1895
  1813
slouken@1895
  1814
    window = SDL_GetWindowFromID(renderer->window);
slouken@1895
  1815
    real_rect.x = 0;
slouken@1895
  1816
    real_rect.y = 0;
slouken@1895
  1817
    real_rect.w = window->w;
slouken@1895
  1818
    real_rect.h = window->h;
slouken@1895
  1819
    if (rect) {
slouken@1895
  1820
        if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
slouken@1895
  1821
            return 0;
slouken@1895
  1822
        }
slouken@1895
  1823
    }
slouken@1895
  1824
slouken@1897
  1825
    return renderer->RenderFill(renderer, &real_rect, color);
slouken@1895
  1826
}
slouken@1895
  1827
slouken@1895
  1828
int
slouken@1895
  1829
SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect * srcrect,
slouken@1895
  1830
               const SDL_Rect * dstrect, int blendMode, int scaleMode)
slouken@1895
  1831
{
slouken@1895
  1832
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1833
    SDL_Renderer *renderer;
slouken@1895
  1834
    SDL_Window *window;
slouken@1895
  1835
    SDL_Rect real_srcrect;
slouken@1895
  1836
    SDL_Rect real_dstrect;
slouken@1895
  1837
slouken@1895
  1838
    if (!texture || texture->renderer != SDL_CurrentDisplay.current_renderer) {
slouken@1895
  1839
        return -1;
slouken@1895
  1840
    }
slouken@1895
  1841
slouken@1895
  1842
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1843
    if (!renderer || !renderer->RenderCopy) {
slouken@1895
  1844
        return -1;
slouken@1895
  1845
    }
slouken@1895
  1846
slouken@1895
  1847
    window = SDL_GetWindowFromID(renderer->window);
slouken@1897
  1848
    if (srcrect) {
slouken@1897
  1849
        real_srcrect = *srcrect;
slouken@1897
  1850
    } else {
slouken@1897
  1851
        real_srcrect.x = 0;
slouken@1897
  1852
        real_srcrect.y = 0;
slouken@1897
  1853
        real_srcrect.w = texture->w;
slouken@1897
  1854
        real_srcrect.h = texture->h;
slouken@1895
  1855
    }
slouken@1897
  1856
    if (dstrect) {
slouken@1897
  1857
        real_dstrect = *dstrect;
slouken@1897
  1858
    } else {
slouken@1897
  1859
        real_dstrect.x = 0;
slouken@1897
  1860
        real_dstrect.y = 0;
slouken@1897
  1861
        real_dstrect.w = window->w;
slouken@1897
  1862
        real_dstrect.h = window->h;
slouken@1895
  1863
    }
slouken@1895
  1864
slouken@1897
  1865
    return renderer->RenderCopy(renderer, texture, &real_srcrect,
slouken@1897
  1866
                                &real_dstrect, blendMode, scaleMode);
slouken@1895
  1867
}
slouken@1895
  1868
slouken@1895
  1869
void
slouken@1895
  1870
SDL_RenderPresent(void)
slouken@1895
  1871
{
slouken@1895
  1872
    SDL_Renderer *renderer;
slouken@1895
  1873
slouken@1895
  1874
    if (!_this) {
slouken@1912
  1875
        SDL_UninitializedVideo();
slouken@1895
  1876
        return;
slouken@1895
  1877
    }
slouken@1895
  1878
slouken@1895
  1879
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1880
    if (!renderer || !renderer->RenderPresent) {
slouken@1895
  1881
        return;
slouken@1895
  1882
    }
slouken@1895
  1883
    renderer->RenderPresent(renderer);
slouken@1895
  1884
}
slouken@1895
  1885
slouken@1895
  1886
void
slouken@1895
  1887
SDL_DestroyTexture(SDL_TextureID textureID)
slouken@1895
  1888
{
slouken@1895
  1889
    int hash;
slouken@1895
  1890
    SDL_Texture *prev, *texture;
slouken@1895
  1891
    SDL_Renderer *renderer;
slouken@1895
  1892
slouken@1895
  1893
    if (!_this) {
slouken@1912
  1894
        SDL_UninitializedVideo();
slouken@1895
  1895
        return;
slouken@1895
  1896
    }
slouken@1895
  1897
slouken@1895
  1898
    /* Look up the texture in the hash table */
slouken@1895
  1899
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1900
    prev = NULL;
slouken@1895
  1901
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@1895
  1902
         prev = texture, texture = texture->next) {
slouken@1895
  1903
        if (texture->id == textureID) {
slouken@1895
  1904
            break;
slouken@1895
  1905
        }
slouken@1895
  1906
    }
slouken@1895
  1907
    if (!texture) {
slouken@1895
  1908
        return;
slouken@1895
  1909
    }
slouken@1895
  1910
slouken@1895
  1911
    /* Unlink the texture from the list */
slouken@1895
  1912
    if (prev) {
slouken@1895
  1913
        prev->next = texture->next;
slouken@1895
  1914
    } else {
slouken@1895
  1915
        SDL_CurrentDisplay.textures[hash] = texture->next;
slouken@1895
  1916
    }
slouken@1895
  1917
slouken@1895
  1918
    /* Free the texture */
slouken@1895
  1919
    renderer = texture->renderer;
slouken@1895
  1920
    renderer->DestroyTexture(renderer, texture);
slouken@1895
  1921
    SDL_free(texture);
slouken@1895
  1922
}
slouken@1895
  1923
slouken@1895
  1924
void
slouken@1895
  1925
SDL_DestroyRenderer(SDL_WindowID windowID)
slouken@1895
  1926
{
slouken@1895
  1927
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1928
    SDL_Renderer *renderer;
slouken@1895
  1929
    int i;
slouken@1895
  1930
slouken@1895
  1931
    if (!window) {
slouken@1895
  1932
        return;
slouken@1895
  1933
    }
slouken@1895
  1934
slouken@1895
  1935
    renderer = window->renderer;
slouken@1895
  1936
    if (!renderer) {
slouken@1895
  1937
        return;
slouken@1895
  1938
    }
slouken@1895
  1939
slouken@1895
  1940
    /* Free existing textures for this renderer */
slouken@1895
  1941
    for (i = 0; i < SDL_arraysize(SDL_CurrentDisplay.textures); ++i) {
slouken@1895
  1942
        SDL_Texture *texture;
slouken@1895
  1943
        SDL_Texture *prev = NULL;
slouken@1895
  1944
        SDL_Texture *next;
slouken@1895
  1945
        for (texture = SDL_CurrentDisplay.textures[i]; texture;
slouken@1895
  1946
             texture = next) {
slouken@1895
  1947
            next = texture->next;
slouken@1895
  1948
            if (texture->renderer == renderer) {
slouken@1895
  1949
                if (prev) {
slouken@1895
  1950
                    prev->next = next;
slouken@1895
  1951
                } else {
slouken@1895
  1952
                    SDL_CurrentDisplay.textures[i] = next;
slouken@1895
  1953
                }
slouken@1895
  1954
                renderer->DestroyTexture(renderer, texture);
slouken@1895
  1955
                SDL_free(texture);
slouken@1895
  1956
            } else {
slouken@1895
  1957
                prev = texture;
slouken@1895
  1958
            }
slouken@1895
  1959
        }
slouken@1895
  1960
    }
slouken@1895
  1961
slouken@1895
  1962
    /* Free the renderer instance */
slouken@1895
  1963
    renderer->DestroyRenderer(renderer);
slouken@1895
  1964
slouken@1895
  1965
    /* Clear references */
slouken@1895
  1966
    window->renderer = NULL;
slouken@1895
  1967
    if (SDL_CurrentDisplay.current_renderer == renderer) {
slouken@1895
  1968
        SDL_CurrentDisplay.current_renderer = NULL;
slouken@1895
  1969
    }
slouken@1895
  1970
}
slouken@1895
  1971
slouken@1895
  1972
void
slouken@1895
  1973
SDL_VideoQuit(void)
slouken@1895
  1974
{
slouken@1895
  1975
    int i, j;
slouken@1895
  1976
slouken@1895
  1977
    if (!_this) {
slouken@1895
  1978
        return;
slouken@1895
  1979
    }
slouken@1895
  1980
slouken@1895
  1981
    /* Halt event processing before doing anything else */
slouken@1895
  1982
    SDL_StopEventLoop();
slouken@1895
  1983
slouken@1895
  1984
    /* Clean up the system video */
slouken@1895
  1985
    for (i = _this->num_displays; i--;) {
slouken@1895
  1986
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  1987
        for (j = display->num_windows; j--;) {
slouken@1895
  1988
            SDL_DestroyWindow(display->windows[i].id);
slouken@1895
  1989
        }
slouken@1895
  1990
        if (display->windows) {
slouken@1895
  1991
            SDL_free(display->windows);
slouken@1895
  1992
            display->windows = NULL;
slouken@1895
  1993
        }
slouken@1895
  1994
        display->num_windows = 0;
slouken@1895
  1995
    }
slouken@1895
  1996
    _this->VideoQuit(_this);
slouken@1895
  1997
slouken@1895
  1998
    for (i = _this->num_displays; i--;) {
slouken@1895
  1999
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  2000
        for (j = display->num_display_modes; j--;) {
slouken@1895
  2001
            if (display->display_modes[j].driverdata) {
slouken@1895
  2002
                SDL_free(display->display_modes[j].driverdata);
slouken@1895
  2003
                display->display_modes[j].driverdata = NULL;
slouken@1895
  2004
            }
slouken@1895
  2005
        }
slouken@1895
  2006
        if (display->display_modes) {
slouken@1895
  2007
            SDL_free(display->display_modes);
slouken@1895
  2008
            display->display_modes = NULL;
slouken@1895
  2009
        }
slouken@1895
  2010
        if (display->desktop_mode.driverdata) {
slouken@1895
  2011
            SDL_free(display->desktop_mode.driverdata);
slouken@1895
  2012
            display->desktop_mode.driverdata = NULL;
slouken@1895
  2013
        }
slouken@1895
  2014
        if (display->palette) {
slouken@1895
  2015
            SDL_FreePalette(display->palette);
slouken@1895
  2016
            display->palette = NULL;
slouken@1895
  2017
        }
slouken@1895
  2018
        if (display->gamma) {
slouken@1895
  2019
            SDL_free(display->gamma);
slouken@1895
  2020
        }
slouken@1895
  2021
        if (display->driverdata) {
slouken@1895
  2022
            SDL_free(display->driverdata);
slouken@1895
  2023
        }
slouken@1895
  2024
    }
slouken@1895
  2025
    if (_this->displays) {
slouken@1895
  2026
        SDL_free(_this->displays);
slouken@1895
  2027
        _this->displays = NULL;
slouken@1895
  2028
    }
slouken@1895
  2029
    _this->free(_this);
slouken@1895
  2030
    _this = NULL;
slouken@0
  2031
}
slouken@0
  2032
slouken@1895
  2033
int
slouken@1895
  2034
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2035
{
slouken@1895
  2036
    int retval;
slouken@0
  2037
slouken@1912
  2038
    if (!_this) {
slouken@1912
  2039
        SDL_UninitializedVideo();
slouken@1912
  2040
        return -1;
slouken@1912
  2041
    }
slouken@1912
  2042
slouken@1912
  2043
    if (_this->GL_LoadLibrary) {
slouken@1912
  2044
        retval = _this->GL_LoadLibrary(_this, path);
slouken@1895
  2045
    } else {
slouken@1912
  2046
        SDL_SetError("No dynamic GL support in video driver");
slouken@1912
  2047
        retval = -1;
slouken@1895
  2048
    }
slouken@1895
  2049
    return (retval);
slouken@0
  2050
}
slouken@0
  2051
slouken@1895
  2052
void *
slouken@1895
  2053
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2054
{
slouken@1895
  2055
    void *func;
slouken@0
  2056
slouken@1912
  2057
    if (!_this) {
slouken@1912
  2058
        SDL_UninitializedVideo();
slouken@1912
  2059
        return NULL;
slouken@1912
  2060
    }
slouken@1912
  2061
slouken@1895
  2062
    func = NULL;
slouken@1895
  2063
    if (_this->GL_GetProcAddress) {
slouken@1895
  2064
        if (_this->gl_config.driver_loaded) {
slouken@1895
  2065
            func = _this->GL_GetProcAddress(_this, proc);
slouken@1895
  2066
        } else {
slouken@1895
  2067
            SDL_SetError("No GL driver has been loaded");
slouken@1895
  2068
        }
slouken@1895
  2069
    } else {
slouken@1895
  2070
        SDL_SetError("No dynamic GL support in video driver");
slouken@1895
  2071
    }
slouken@1895
  2072
    return func;
slouken@0
  2073
}
slouken@0
  2074
slouken@1926
  2075
SDL_bool
slouken@1926
  2076
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2077
{
slouken@1926
  2078
#if SDL_VIDEO_OPENGL
slouken@1926
  2079
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@1926
  2080
    const char *extensions;
slouken@1926
  2081
    const char *start;
slouken@1926
  2082
    const char *where, *terminator;
slouken@1926
  2083
slouken@1926
  2084
    /* Extension names should not have spaces. */
slouken@1926
  2085
    where = SDL_strchr(extension, ' ');
slouken@1926
  2086
    if (where || *extension == '\0') {
slouken@1926
  2087
        return SDL_FALSE;
slouken@1926
  2088
    }
slouken@1926
  2089
slouken@1926
  2090
    /* See if there's an environment variable override */
slouken@1926
  2091
    start = SDL_getenv(extension);
slouken@1926
  2092
    if (start && *start == '0') {
slouken@1926
  2093
        return SDL_FALSE;
slouken@1926
  2094
    }
slouken@1926
  2095
slouken@1926
  2096
    /* Lookup the available extensions */
slouken@1926
  2097
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@1926
  2098
    if (glGetStringFunc) {
slouken@1926
  2099
        extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@1926
  2100
    } else {
slouken@1926
  2101
        extensions = NULL;
slouken@1926
  2102
    }
slouken@1926
  2103
    if (!extensions) {
slouken@1926
  2104
        return SDL_FALSE;
slouken@1926
  2105
    }
slouken@1926
  2106
slouken@1926
  2107
    /* It takes a bit of care to be fool-proof about parsing the
slouken@1926
  2108
     * OpenGL extensions string. Don't be fooled by sub-strings,
slouken@1926
  2109
     * etc. */
slouken@1926
  2110
slouken@1926
  2111
    start = extensions;
slouken@1926
  2112
slouken@1926
  2113
    for (;;) {
slouken@1926
  2114
        where = SDL_strstr(start, extension);
slouken@1926
  2115
        if (!where)
slouken@1926
  2116
            break;
slouken@1926
  2117
slouken@1926
  2118
        terminator = where + SDL_strlen(extension);
slouken@1926
  2119
        if (where == start || *(where - 1) == ' ')
slouken@1926
  2120
            if (*terminator == ' ' || *terminator == '\0')
slouken@1926
  2121
                return SDL_TRUE;
slouken@1926
  2122
slouken@1926
  2123
        start = terminator;
slouken@1926
  2124
    }
slouken@1926
  2125
    return SDL_FALSE;
slouken@1926
  2126
#else
slouken@1926
  2127
    return SDL_FALSE;
slouken@1926
  2128
#endif
slouken@1926
  2129
}
slouken@1926
  2130
slouken@1895
  2131
int
slouken@1895
  2132
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2133
{
slouken@1936
  2134
#if SDL_VIDEO_OPENGL
slouken@1895
  2135
    int retval;
slouken@0
  2136
slouken@1912
  2137
    if (!_this) {
slouken@1912
  2138
        SDL_UninitializedVideo();
slouken@1912
  2139
        return -1;
slouken@1912
  2140
    }
slouken@1912
  2141
slouken@1895
  2142
    retval = 0;
slouken@1895
  2143
    switch (attr) {
slouken@1895
  2144
    case SDL_GL_RED_SIZE:
slouken@1895
  2145
        _this->gl_config.red_size = value;
slouken@1895
  2146
        break;
slouken@1895
  2147
    case SDL_GL_GREEN_SIZE:
slouken@1895
  2148
        _this->gl_config.green_size = value;
slouken@1895
  2149
        break;
slouken@1895
  2150
    case SDL_GL_BLUE_SIZE:
slouken@1895
  2151
        _this->gl_config.blue_size = value;
slouken@1895
  2152
        break;
slouken@1895
  2153
    case SDL_GL_ALPHA_SIZE:
slouken@1895
  2154
        _this->gl_config.alpha_size = value;
slouken@1895
  2155
        break;
slouken@1895
  2156
    case SDL_GL_DOUBLEBUFFER:
slouken@1895
  2157
        _this->gl_config.double_buffer = value;
slouken@1895
  2158
        break;
slouken@1895
  2159
    case SDL_GL_BUFFER_SIZE:
slouken@1895
  2160
        _this->gl_config.buffer_size = value;
slouken@1895
  2161
        break;
slouken@1895
  2162
    case SDL_GL_DEPTH_SIZE:
slouken@1895
  2163
        _this->gl_config.depth_size = value;
slouken@1895
  2164
        break;
slouken@1895
  2165
    case SDL_GL_STENCIL_SIZE:
slouken@1895
  2166
        _this->gl_config.stencil_size = value;
slouken@1895
  2167
        break;
slouken@1895
  2168
    case SDL_GL_ACCUM_RED_SIZE:
slouken@1895
  2169
        _this->gl_config.accum_red_size = value;
slouken@1895
  2170
        break;
slouken@1895
  2171
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@1895
  2172
        _this->gl_config.accum_green_size = value;
slouken@1895
  2173
        break;
slouken@1895
  2174
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@1895
  2175
        _this->gl_config.accum_blue_size = value;
slouken@1895
  2176
        break;
slouken@1895
  2177
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@1895
  2178
        _this->gl_config.accum_alpha_size = value;
slouken@1895
  2179
        break;
slouken@1895
  2180
    case SDL_GL_STEREO:
slouken@1895
  2181
        _this->gl_config.stereo = value;
slouken@1895
  2182
        break;
slouken@1895
  2183
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@1895
  2184
        _this->gl_config.multisamplebuffers = value;
slouken@1895
  2185
        break;
slouken@1895
  2186
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@1895
  2187
        _this->gl_config.multisamplesamples = value;
slouken@1895
  2188
        break;
slouken@1895
  2189
    case SDL_GL_ACCELERATED_VISUAL:
slouken@1895
  2190
        _this->gl_config.accelerated = value;
slouken@1895
  2191
        break;
slouken@1895
  2192
    default:
slouken@1895
  2193
        SDL_SetError("Unknown OpenGL attribute");
slouken@1895
  2194
        retval = -1;
slouken@1895
  2195
        break;
slouken@1895
  2196
    }
slouken@1912
  2197
    return retval;
slouken@1936
  2198
#else
slouken@1936
  2199
    SDL_Unsupported();
slouken@1936
  2200
    return -1;
slouken@1936
  2201
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2202
}
slouken@0
  2203
slouken@1895
  2204
int
slouken@1936
  2205
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2206
{
slouken@1936
  2207
#if SDL_VIDEO_OPENGL
slouken@1936
  2208
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@1936
  2209
    GLenum attrib = 0;
slouken@1912
  2210
slouken@1936
  2211
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@1936
  2212
    if (!glGetIntegervFunc) {
slouken@1936
  2213
        return -1;
slouken@1936
  2214
    }
slouken@1936
  2215
    switch (attr) {
slouken@1936
  2216
    case SDL_GL_RED_SIZE:
slouken@1936
  2217
        attrib = GL_RED_BITS;
slouken@1936
  2218
        break;
slouken@1936
  2219
    case SDL_GL_BLUE_SIZE:
slouken@1936
  2220
        attrib = GL_BLUE_BITS;
slouken@1936
  2221
        break;
slouken@1936
  2222
    case SDL_GL_GREEN_SIZE:
slouken@1936
  2223
        attrib = GL_GREEN_BITS;
slouken@1936
  2224
        break;
slouken@1936
  2225
    case SDL_GL_ALPHA_SIZE:
slouken@1936
  2226
        attrib = GL_ALPHA_BITS;
slouken@1936
  2227
        break;
slouken@1936
  2228
    case SDL_GL_DOUBLEBUFFER:
slouken@1936
  2229
        attrib = GL_DOUBLEBUFFER;
slouken@1936
  2230
        break;
slouken@1936
  2231
    case SDL_GL_DEPTH_SIZE:
slouken@1936
  2232
        attrib = GL_DEPTH_BITS;
slouken@1936
  2233
        break;
slouken@1936
  2234
    case SDL_GL_STENCIL_SIZE:
slouken@1936
  2235
        attrib = GL_STENCIL_BITS;
slouken@1936
  2236
        break;
slouken@1936
  2237
    case SDL_GL_ACCUM_RED_SIZE:
slouken@1936
  2238
        attrib = GL_ACCUM_RED_BITS;
slouken@1936
  2239
        break;
slouken@1936
  2240
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@1936
  2241
        attrib = GL_ACCUM_GREEN_BITS;
slouken@1936
  2242
        break;
slouken@1936
  2243
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@1936
  2244
        attrib = GL_ACCUM_BLUE_BITS;
slouken@1936
  2245
        break;
slouken@1936
  2246
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@1936
  2247
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@1936
  2248
        break;
slouken@1936
  2249
    case SDL_GL_STEREO:
slouken@1936
  2250
        attrib = GL_STEREO;
slouken@1936
  2251
        break;
slouken@1936
  2252
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@1936
  2253
        attrib = GL_SAMPLE_BUFFERS_ARB;
slouken@1936
  2254
        break;
slouken@1936
  2255
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@1936
  2256
        attrib = GL_SAMPLES_ARB;
slouken@1936
  2257
        break;
slouken@1936
  2258
    case SDL_GL_BUFFER_SIZE:
slouken@1936
  2259
        {
slouken@1936
  2260
            GLint bits = 0;
slouken@1936
  2261
            GLint component;
slouken@1936
  2262
slouken@1936
  2263
            /* there doesn't seem to be a single flag in OpenGL for this! */
slouken@1938
  2264
            glGetIntegervFunc(GL_RED_BITS, &component);
slouken@1936
  2265
            bits += component;
slouken@1938
  2266
            glGetIntegervFunc(GL_GREEN_BITS, &component);
slouken@1936
  2267
            bits += component;
slouken@1938
  2268
            glGetIntegervFunc(GL_BLUE_BITS, &component);
slouken@1936
  2269
            bits += component;
slouken@1938
  2270
            glGetIntegervFunc(GL_ALPHA_BITS, &component);
slouken@1936
  2271
            bits += component;
slouken@1936
  2272
slouken@1936
  2273
            *value = bits;
slouken@1936
  2274
            return 0;
slouken@1936
  2275
        }
slouken@1936
  2276
    case SDL_GL_ACCELERATED_VISUAL:
slouken@1936
  2277
        {
slouken@1936
  2278
            /* FIXME: How do we get this information? */
slouken@1936
  2279
            *value = (_this->gl_config.accelerated != 0);
slouken@1936
  2280
            return 0;
slouken@1936
  2281
        }
slouken@1936
  2282
    default:
slouken@1936
  2283
        SDL_SetError("Unknown OpenGL attribute");
slouken@1912
  2284
        return -1;
slouken@1912
  2285
    }
slouken@0
  2286
slouken@1938
  2287
    glGetIntegervFunc(attrib, (GLint *) value);
slouken@1936
  2288
    return 0;
slouken@1936
  2289
#else
slouken@1936
  2290
    SDL_Unsupported();
slouken@1936
  2291
    return -1;
slouken@1936
  2292
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2293
}
slouken@0
  2294
slouken@1912
  2295
SDL_GLContext
slouken@1912
  2296
SDL_GL_CreateContext(SDL_WindowID windowID)
slouken@1912
  2297
{
slouken@1912
  2298
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2299
slouken@1912
  2300
    if (!window) {
slouken@1912
  2301
        return NULL;
slouken@1912
  2302
    }
slouken@1912
  2303
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@1912
  2304
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@1912
  2305
        return NULL;
slouken@1912
  2306
    }
slouken@1912
  2307
    return _this->GL_CreateContext(_this, window);
slouken@1912
  2308
}
slouken@1912
  2309
slouken@1912
  2310
int
slouken@1912
  2311
SDL_GL_MakeCurrent(SDL_WindowID windowID, SDL_GLContext context)
slouken@1912
  2312
{
slouken@1912
  2313
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2314
slouken@1913
  2315
    if (window && !(window->flags & SDL_WINDOW_OPENGL)) {
slouken@1912
  2316
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@1912
  2317
        return -1;
slouken@1912
  2318
    }
slouken@1936
  2319
    if (!context) {
slouken@1936
  2320
        window = NULL;
slouken@1936
  2321
    }
slouken@1912
  2322
    return _this->GL_MakeCurrent(_this, window, context);
slouken@1912
  2323
}
slouken@1912
  2324
slouken@1912
  2325
int
slouken@1912
  2326
SDL_GL_SetSwapInterval(int interval)
slouken@1912
  2327
{
slouken@1912
  2328
    if (!_this) {
slouken@1912
  2329
        SDL_UninitializedVideo();
slouken@1912
  2330
        return -1;
slouken@1912
  2331
    }
slouken@1912
  2332
slouken@1912
  2333
    if (_this->GL_SetSwapInterval) {
slouken@1912
  2334
        return _this->GL_SetSwapInterval(_this, interval);
slouken@1912
  2335
    } else {
slouken@1912
  2336
        SDL_SetError("Setting the swap interval is not supported");
slouken@1912
  2337
        return -1;
slouken@1912
  2338
    }
slouken@1912
  2339
}
slouken@1912
  2340
slouken@1912
  2341
int
slouken@1912
  2342
SDL_GL_GetSwapInterval(void)
slouken@1912
  2343
{
slouken@1912
  2344
    if (!_this) {
slouken@1912
  2345
        SDL_UninitializedVideo();
slouken@1912
  2346
        return -1;
slouken@1912
  2347
    }
slouken@1912
  2348
slouken@1912
  2349
    if (_this->GL_GetSwapInterval) {
slouken@1912
  2350
        return _this->GL_GetSwapInterval(_this);
slouken@1912
  2351
    } else {
slouken@1912
  2352
        SDL_SetError("Getting the swap interval is not supported");
slouken@1912
  2353
        return -1;
slouken@1912
  2354
    }
slouken@1912
  2355
}
slouken@1912
  2356
slouken@1895
  2357
void
slouken@1912
  2358
SDL_GL_SwapWindow(SDL_WindowID windowID)
slouken@0
  2359
{
slouken@1912
  2360
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2361
slouken@1912
  2362
    if (!window) {
slouken@1912
  2363
        return;
slouken@1912
  2364
    }
slouken@1912
  2365
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@1912
  2366
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@1912
  2367
        return;
slouken@1912
  2368
    }
slouken@1930
  2369
    _this->GL_SwapWindow(_this, window);
slouken@1912
  2370
}
slouken@1912
  2371
slouken@1912
  2372
void
slouken@1912
  2373
SDL_GL_DeleteContext(SDL_GLContext context)
slouken@1912
  2374
{
slouken@1912
  2375
    if (!_this || !context) {
slouken@1912
  2376
        return;
slouken@1912
  2377
    }
slouken@1936
  2378
    _this->GL_MakeCurrent(_this, NULL, NULL);
slouken@1912
  2379
    _this->GL_DeleteContext(_this, context);
slouken@0
  2380
}
slouken@0
  2381
slouken@1895
  2382
#if 0                           // FIXME
slouken@541
  2383
/* Utility function used by SDL_WM_SetIcon();
slouken@541
  2384
 * flags & 1 for color key, flags & 2 for alpha channel. */
slouken@1895
  2385
static void
slouken@1895
  2386
CreateMaskFromColorKeyOrAlpha(SDL_Surface * icon, Uint8 * mask, int flags)
slouken@0
  2387
{
slouken@1895
  2388
    int x, y;
slouken@1895
  2389
    Uint32 colorkey;
slouken@0
  2390
#define SET_MASKBIT(icon, x, y, mask) \
slouken@0
  2391
	mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8)))
slouken@0
  2392
slouken@1895
  2393
    colorkey = icon->format->colorkey;
slouken@1895
  2394
    switch (icon->format->BytesPerPixel) {
slouken@1895
  2395
    case 1:
slouken@1895
  2396
        {
slouken@1895
  2397
            Uint8 *pixels;
slouken@1895
  2398
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2399
                pixels = (Uint8 *) icon->pixels + y * icon->pitch;
slouken@1895
  2400
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2401
                    if (*pixels++ == colorkey) {
slouken@1895
  2402
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2403
                    }
slouken@1895
  2404
                }
slouken@1895
  2405
            }
slouken@1895
  2406
        }
slouken@1895
  2407
        break;
slouken@0
  2408
slouken@1895
  2409
    case 2:
slouken@1895
  2410
        {
slouken@1895
  2411
            Uint16 *pixels;
slouken@1895
  2412
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2413
                pixels = (Uint16 *) icon->pixels + y * icon->pitch / 2;
slouken@1895
  2414
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2415
                    if ((flags & 1) && *pixels == colorkey) {
slouken@1895
  2416
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2417
                    } else if ((flags & 2)
slouken@1895
  2418
                               && (*pixels & icon->format->Amask) == 0) {
slouken@1895
  2419
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2420
                    }
slouken@1895
  2421
                    pixels++;
slouken@1895
  2422
                }
slouken@1895
  2423
            }
slouken@1895
  2424
        }
slouken@1895
  2425
        break;
slouken@0
  2426
slouken@1895
  2427
    case 4:
slouken@1895
  2428
        {
slouken@1895
  2429
            Uint32 *pixels;
slouken@1895
  2430
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2431
                pixels = (Uint32 *) icon->pixels + y * icon->pitch / 4;
slouken@1895
  2432
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2433
                    if ((flags & 1) && *pixels == colorkey) {
slouken@1895
  2434
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2435
                    } else if ((flags & 2)
slouken@1895
  2436
                               && (*pixels & icon->format->Amask) == 0) {
slouken@1895
  2437
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2438
                    }
slouken@1895
  2439
                    pixels++;
slouken@1895
  2440
                }
slouken@1895
  2441
            }
slouken@1895
  2442
        }
slouken@1895
  2443
        break;
slouken@1895
  2444
    }
slouken@0
  2445
}
slouken@0
  2446
slouken@0
  2447
/*
slouken@0
  2448
 * Sets the window manager icon for the display window.
slouken@0
  2449
 */
slouken@1895
  2450
void
slouken@1895
  2451
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
slouken@0
  2452
{
slouken@1895
  2453
    if (icon && _this->SetIcon) {
slouken@1895
  2454
        /* Generate a mask if necessary, and create the icon! */
slouken@1895
  2455
        if (mask == NULL) {
slouken@1895
  2456
            int mask_len = icon->h * (icon->w + 7) / 8;
slouken@1895
  2457
            int flags = 0;
slouken@1895
  2458
            mask = (Uint8 *) SDL_malloc(mask_len);
slouken@1895
  2459
            if (mask == NULL) {
slouken@1895
  2460
                return;
slouken@1895
  2461
            }
slouken@1895
  2462
            SDL_memset(mask, ~0, mask_len);
slouken@1895
  2463
            if (icon->flags & SDL_SRCCOLORKEY)
slouken@1895
  2464
                flags |= 1;
slouken@1895
  2465
            if (icon->flags & SDL_SRCALPHA)
slouken@1895
  2466
                flags |= 2;
slouken@1895
  2467
            if (flags) {
slouken@1895
  2468
                CreateMaskFromColorKeyOrAlpha(icon, mask, flags);
slouken@1895
  2469
            }
slouken@1895
  2470
            _this->SetIcon(_this, icon, mask);
slouken@1895
  2471
            SDL_free(mask);
slouken@1895
  2472
        } else {
slouken@1895
  2473
            _this->SetIcon(_this, icon, mask);
slouken@1895
  2474
        }
slouken@1895
  2475
    }
slouken@1895
  2476
}
slouken@1895
  2477
#endif
slouken@0
  2478
slouken@1895
  2479
SDL_bool
slouken@1895
  2480
SDL_GetWindowWMInfo(SDL_WindowID windowID, struct SDL_SysWMinfo *info)
slouken@1895
  2481
{
slouken@1895
  2482
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  2483
slouken@1895
  2484
    if (!window || !_this->GetWindowWMInfo) {
slouken@1895
  2485
        return SDL_FALSE;
slouken@1895
  2486
    }
slouken@1895
  2487
    return (_this->GetWindowWMInfo(_this, window, info));
slouken@0
  2488
}
slouken@0
  2489
slouken@1895
  2490
/* vi: set ts=4 sw=4 expandtab: */