src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Wed, 12 Jul 2006 06:39:26 +0000
changeset 1897 c2a27da60b18
parent 1895 c121d94672cb
child 1905 36d52b1f0504
permissions -rw-r--r--
Solved the performance problems by introducing the concept of a single-buffered
display, which is a fast path used for the whole-surface SDL 1.2 API.
Solved the flicker problems by implementing a backbuffer in the GDI renderer.

Unfortunately, now using the GDI renderer with a backbuffer and HBITMAPs is
significantly slower than SDL's surface code. *sigh*
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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_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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/* Available video drivers */
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static VideoBootStrap *bootstrap[] = {
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#if SDL_VIDEO_DRIVER_QUARTZ
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    &QZ_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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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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        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 (_this->displays[i].num_render_drivers > 0) {
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            SDL_AddRenderDriver(i, &SDL_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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        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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        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_SetError("Video subsystem has not been initialized");
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        return (-1);
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    }
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    if (index >= 0) {
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        if (index >= _this->num_displays) {
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            SDL_SetError("index must be in the range 0 - %d",
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                         _this->num_displays - 1);
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            return -1;
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        }
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        _this->current_display = index;
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    }
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    return _this->current_display;
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}
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SDL_bool
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SDL_AddDisplayMode(int displayIndex, const SDL_DisplayMode * mode)
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{
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    SDL_VideoDisplay *display = &_this->displays[displayIndex];
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    SDL_DisplayMode *modes;
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    int i, nmodes;
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    /* Make sure we don't already have the mode in the list */
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    modes = display->display_modes;
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    nmodes = display->num_display_modes;
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    for (i = nmodes; i--;) {
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        if (SDL_memcmp(mode, &modes[i], sizeof(*mode)) == 0) {
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            return SDL_FALSE;
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        }
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    }
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    /* Go ahead and add the new mode */
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    if (nmodes == display->max_display_modes) {
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        modes =
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            SDL_realloc(modes,
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                        (display->max_display_modes + 32) * sizeof(*modes));
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        if (!modes) {
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            return SDL_FALSE;
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        }
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        display->display_modes = modes;
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   382
        display->max_display_modes += 32;
slouken@1895
   383
    }
slouken@1895
   384
    modes[nmodes] = *mode;
slouken@1895
   385
    display->num_display_modes++;
slouken@1895
   386
slouken@1895
   387
    return SDL_TRUE;
slouken@0
   388
}
slouken@0
   389
slouken@1895
   390
int
slouken@1895
   391
SDL_GetNumDisplayModes()
slouken@0
   392
{
slouken@1895
   393
    if (_this) {
slouken@1895
   394
        SDL_VideoDisplay *display = &SDL_CurrentDisplay;
slouken@1895
   395
        if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@1895
   396
            _this->GetDisplayModes(_this);
slouken@1895
   397
            SDL_qsort(display->display_modes, display->num_display_modes,
slouken@1895
   398
                      sizeof(SDL_DisplayMode), cmpmodes);
slouken@1895
   399
        }
slouken@1895
   400
        return display->num_display_modes;
slouken@1895
   401
    }
slouken@1895
   402
    return 0;
slouken@0
   403
}
slouken@0
   404
slouken@1895
   405
const SDL_DisplayMode *
slouken@1895
   406
SDL_GetDisplayMode(int index)
slouken@0
   407
{
slouken@1895
   408
    if (index < 0 || index >= SDL_GetNumDisplayModes()) {
slouken@1895
   409
        SDL_SetError("index must be in the range of 0 - %d",
slouken@1895
   410
                     SDL_GetNumDisplayModes() - 1);
slouken@1895
   411
        return NULL;
slouken@1895
   412
    }
slouken@1895
   413
    return &SDL_CurrentDisplay.display_modes[index];
slouken@0
   414
}
slouken@0
   415
slouken@1895
   416
const SDL_DisplayMode *
slouken@1895
   417
SDL_GetDesktopDisplayMode(void)
slouken@0
   418
{
slouken@1895
   419
    if (_this) {
slouken@1895
   420
        return &SDL_CurrentDisplay.desktop_mode;
slouken@1895
   421
    }
slouken@1895
   422
    return NULL;
slouken@0
   423
}
slouken@0
   424
slouken@1895
   425
const SDL_DisplayMode *
slouken@1895
   426
SDL_GetCurrentDisplayMode(void)
slouken@0
   427
{
slouken@1895
   428
    if (_this) {
slouken@1895
   429
        return &SDL_CurrentDisplay.current_mode;
slouken@1895
   430
    }
slouken@1895
   431
    return NULL;
slouken@0
   432
}
slouken@0
   433
slouken@1895
   434
SDL_DisplayMode *
slouken@1895
   435
SDL_GetClosestDisplayMode(const SDL_DisplayMode * mode,
slouken@1895
   436
                          SDL_DisplayMode * closest)
slouken@0
   437
{
slouken@1895
   438
    Uint32 target_format;
slouken@1895
   439
    int target_refresh_rate;
slouken@1895
   440
    int i;
slouken@1895
   441
    SDL_DisplayMode *current, *match;
slouken@0
   442
slouken@1895
   443
    if (!_this || !mode || !closest) {
slouken@1895
   444
        return NULL;
slouken@1895
   445
    }
slouken@0
   446
slouken@1895
   447
    /* Default to the desktop format */
slouken@1895
   448
    if (mode->format) {
slouken@1895
   449
        target_format = mode->format;
slouken@1895
   450
    } else {
slouken@1895
   451
        target_format = SDL_CurrentDisplay.desktop_mode.format;
slouken@1895
   452
    }
slouken@0
   453
slouken@1895
   454
    /* Default to the desktop refresh rate */
slouken@1895
   455
    if (mode->refresh_rate) {
slouken@1895
   456
        target_refresh_rate = mode->refresh_rate;
slouken@1895
   457
    } else {
slouken@1895
   458
        target_refresh_rate = SDL_CurrentDisplay.desktop_mode.refresh_rate;
slouken@1895
   459
    }
slouken@0
   460
slouken@1895
   461
    match = NULL;
slouken@1895
   462
    for (i = 0; i < SDL_GetNumDisplayModes(); ++i) {
slouken@1895
   463
        current = &SDL_CurrentDisplay.display_modes[i];
slouken@1895
   464
slouken@1895
   465
        if ((current->w && current->h) &&
slouken@1895
   466
            (current->w < mode->w || current->h < mode->h)) {
slouken@1895
   467
            /* Out of sorted modes large enough here */
slouken@1895
   468
            break;
slouken@1895
   469
        }
slouken@1895
   470
        if (!match || current->w < match->w || current->h < match->h) {
slouken@1895
   471
            match = current;
slouken@1895
   472
            continue;
slouken@1895
   473
        }
slouken@1895
   474
        if (current->format != match->format) {
slouken@1895
   475
            /* Sorted highest depth to lowest */
slouken@1895
   476
            if (current->format == target_format ||
slouken@1895
   477
                (SDL_BITSPERPIXEL(current->format) >=
slouken@1895
   478
                 SDL_BITSPERPIXEL(target_format)
slouken@1895
   479
                 && SDL_PIXELTYPE(current->format) ==
slouken@1895
   480
                 SDL_PIXELTYPE(target_format))) {
slouken@1895
   481
                match = current;
slouken@1895
   482
            }
slouken@1895
   483
            continue;
slouken@1895
   484
        }
slouken@1895
   485
        if (current->refresh_rate != match->refresh_rate) {
slouken@1895
   486
            /* Sorted highest refresh to lowest */
slouken@1895
   487
            if (current->refresh_rate >= target_refresh_rate) {
slouken@1895
   488
                match = current;
slouken@1895
   489
            }
slouken@1895
   490
        }
slouken@1895
   491
    }
slouken@1895
   492
    if (match) {
slouken@1895
   493
        if (match->format) {
slouken@1895
   494
            closest->format = match->format;
slouken@1895
   495
        } else {
slouken@1895
   496
            closest->format = mode->format;
slouken@1895
   497
        }
slouken@1895
   498
        if (match->w && match->h) {
slouken@1895
   499
            closest->w = match->w;
slouken@1895
   500
            closest->h = match->h;
slouken@1895
   501
        } else {
slouken@1895
   502
            closest->w = mode->w;
slouken@1895
   503
            closest->h = mode->h;
slouken@1895
   504
        }
slouken@1895
   505
        if (match->refresh_rate) {
slouken@1895
   506
            closest->refresh_rate = match->refresh_rate;
slouken@1895
   507
        } else {
slouken@1895
   508
            closest->refresh_rate = mode->refresh_rate;
slouken@1895
   509
        }
slouken@1895
   510
        closest->driverdata = match->driverdata;
slouken@1895
   511
slouken@1895
   512
        /* Pick some reasonable defaults if the app and driver don't care */
slouken@1895
   513
        if (!closest->format) {
slouken@1895
   514
            closest->format = SDL_PixelFormat_RGB888;
slouken@1895
   515
        }
slouken@1895
   516
        if (!closest->w) {
slouken@1895
   517
            closest->w = 640;
slouken@1895
   518
        }
slouken@1895
   519
        if (!closest->h) {
slouken@1895
   520
            closest->h = 480;
slouken@1895
   521
        }
slouken@1895
   522
        return closest;
slouken@1895
   523
    }
slouken@1895
   524
    return NULL;
slouken@0
   525
}
slouken@0
   526
slouken@1895
   527
int
slouken@1895
   528
SDL_SetDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   529
{
slouken@1895
   530
    SDL_VideoDisplay *display;
slouken@1895
   531
    SDL_DisplayMode display_mode;
slouken@1895
   532
    int i, ncolors;
slouken@0
   533
slouken@1895
   534
    if (!_this) {
slouken@1895
   535
        SDL_SetError("Video subsystem has not been initialized");
slouken@1895
   536
        return -1;
slouken@1895
   537
    }
slouken@0
   538
slouken@1895
   539
    if (!mode) {
slouken@1895
   540
        mode = SDL_GetDesktopDisplayMode();
slouken@1895
   541
    }
slouken@1895
   542
    display = &SDL_CurrentDisplay;
slouken@1895
   543
    display_mode = *mode;
slouken@1895
   544
slouken@1895
   545
    /* Default to the current mode */
slouken@1895
   546
    if (!display_mode.format) {
slouken@1895
   547
        display_mode.format = display->current_mode.format;
slouken@1895
   548
    }
slouken@1895
   549
    if (!display_mode.w) {
slouken@1895
   550
        display_mode.w = display->current_mode.w;
slouken@1895
   551
    }
slouken@1895
   552
    if (!display_mode.h) {
slouken@1895
   553
        display_mode.h = display->current_mode.h;
slouken@1895
   554
    }
slouken@1895
   555
    if (!display_mode.refresh_rate) {
slouken@1895
   556
        display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@1895
   557
    }
slouken@1895
   558
slouken@1895
   559
    /* Get a good video mode, the closest one possible */
slouken@1895
   560
    if (!SDL_GetClosestDisplayMode(&display_mode, &display_mode)) {
slouken@1895
   561
        SDL_SetError("No video mode large enough for %dx%d",
slouken@1895
   562
                     display_mode.w, display_mode.h);
slouken@1895
   563
        return -1;
slouken@1895
   564
    }
slouken@1895
   565
slouken@1895
   566
    /* See if there's anything left to do */
slouken@1895
   567
    if (SDL_memcmp
slouken@1895
   568
        (&display_mode, SDL_GetCurrentDisplayMode(),
slouken@1895
   569
         sizeof(display_mode)) == 0) {
slouken@1895
   570
        return 0;
slouken@1895
   571
    }
slouken@1895
   572
slouken@1895
   573
    /* Actually change the display mode */
slouken@1895
   574
    if (_this->SetDisplayMode(_this, &display_mode) < 0) {
slouken@1895
   575
        return -1;
slouken@1895
   576
    }
slouken@1895
   577
    display->current_mode = display_mode;
slouken@1895
   578
slouken@1895
   579
    /* Set up a palette, if necessary */
slouken@1895
   580
    if (SDL_ISPIXELFORMAT_INDEXED(display_mode.format)) {
slouken@1895
   581
        ncolors = (1 << SDL_BITSPERPIXEL(display_mode.format));
slouken@1895
   582
    } else {
slouken@1895
   583
        ncolors = 0;
slouken@1895
   584
    }
slouken@1895
   585
    if ((!ncolors && display->palette) || (ncolors && !display->palette)
slouken@1895
   586
        || (ncolors && ncolors != display->palette->ncolors)) {
slouken@1895
   587
        if (display->palette) {
slouken@1895
   588
            SDL_FreePalette(display->palette);
slouken@1895
   589
            display->palette = NULL;
slouken@1895
   590
        }
slouken@1895
   591
        if (ncolors) {
slouken@1895
   592
            display->palette = SDL_AllocPalette(ncolors);
slouken@1895
   593
            if (!display->palette) {
slouken@1895
   594
                return -1;
slouken@1895
   595
            }
slouken@1895
   596
            SDL_DitherColors(display->palette->colors,
slouken@1895
   597
                             SDL_BITSPERPIXEL(display_mode.format));
slouken@1895
   598
        }
slouken@1895
   599
    }
slouken@1895
   600
slouken@1895
   601
    /* Move any fullscreen windows into position */
slouken@1895
   602
    for (i = 0; i < display->num_windows; ++i) {
slouken@1895
   603
        SDL_Window *window = &display->windows[i];
slouken@1895
   604
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
   605
            SDL_SetWindowPosition(window->id,
slouken@1895
   606
                                  ((display_mode.w - window->w) / 2),
slouken@1895
   607
                                  ((display_mode.h - window->h) / 2));
slouken@1895
   608
        }
slouken@1895
   609
    }
slouken@1895
   610
slouken@1895
   611
    return 0;
slouken@0
   612
}
slouken@0
   613
slouken@1895
   614
int
slouken@1895
   615
SDL_SetFullscreenDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   616
{
slouken@1895
   617
    SDL_VideoDisplay *display;
slouken@1895
   618
    int i;
slouken@0
   619
slouken@1895
   620
    if (!_this) {
slouken@1895
   621
        SDL_SetError("Video subsystem has not been initialized");
slouken@1895
   622
        return -1;
slouken@1895
   623
    }
slouken@0
   624
slouken@1895
   625
    display = &SDL_CurrentDisplay;
slouken@1895
   626
    if (mode) {
slouken@1895
   627
        SDL_GetClosestDisplayMode(mode, &display->desired_mode);
slouken@1895
   628
        display->fullscreen_mode = &display->desired_mode;
slouken@1895
   629
    } else {
slouken@1895
   630
        display->fullscreen_mode = NULL;
slouken@1895
   631
    }
slouken@1895
   632
slouken@1895
   633
    /* Actually set the mode if we have a fullscreen window visible */
slouken@1895
   634
    for (i = 0; i < display->num_windows; ++i) {
slouken@1895
   635
        SDL_Window *window = &display->windows[i];
slouken@1895
   636
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
   637
            return SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
   638
        }
slouken@1895
   639
    }
slouken@1895
   640
    return 0;
slouken@0
   641
}
slouken@0
   642
slouken@1895
   643
const SDL_DisplayMode *
slouken@1895
   644
SDL_GetFullscreenDisplayMode(void)
slouken@0
   645
{
slouken@1895
   646
    if (_this) {
slouken@1895
   647
        return SDL_CurrentDisplay.fullscreen_mode;
slouken@1895
   648
    }
slouken@1895
   649
    return NULL;
slouken@0
   650
}
slouken@0
   651
slouken@1895
   652
int
slouken@1895
   653
SDL_SetDisplayPalette(const SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   654
{
slouken@1895
   655
    SDL_Palette *palette;
slouken@1895
   656
    int status = 0;
slouken@0
   657
slouken@1895
   658
    if (!_this) {
slouken@1895
   659
        SDL_SetError("Video subsystem has not been initialized");
slouken@1895
   660
        return -1;
slouken@1895
   661
    }
slouken@1895
   662
    palette = SDL_CurrentDisplay.palette;
slouken@1895
   663
    if (!palette) {
slouken@1895
   664
        SDL_SetError("Display mode does not have a palette");
slouken@1895
   665
        return -1;
slouken@1895
   666
    }
slouken@0
   667
slouken@1895
   668
    status = SDL_SetPaletteColors(palette, colors, firstcolor, ncolors);
slouken@0
   669
slouken@1895
   670
    if (_this->SetDisplayPalette) {
slouken@1895
   671
        if (_this->SetDisplayPalette(_this, palette) < 0) {
slouken@1895
   672
            status = -1;
slouken@1895
   673
        }
slouken@1895
   674
    }
slouken@1895
   675
    return status;
slouken@0
   676
}
slouken@0
   677
slouken@1895
   678
int
slouken@1895
   679
SDL_GetDisplayPalette(SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   680
{
slouken@1895
   681
    SDL_Palette *palette;
slouken@1895
   682
slouken@1895
   683
    if (!_this) {
slouken@1895
   684
        SDL_SetError("Video subsystem has not been initialized");
slouken@1895
   685
        return -1;
slouken@1895
   686
    }
slouken@1895
   687
slouken@1895
   688
    palette = SDL_CurrentDisplay.palette;
slouken@1895
   689
    if (!palette->ncolors) {
slouken@1895
   690
        SDL_SetError("Display mode does not have a palette");
slouken@1895
   691
        return -1;
slouken@1895
   692
    }
slouken@1895
   693
slouken@1895
   694
    if (firstcolor < 0 || (firstcolor + ncolors) > palette->ncolors) {
slouken@1895
   695
        SDL_SetError("Palette indices are out of range");
slouken@1895
   696
        return -1;
slouken@1895
   697
    }
slouken@1895
   698
slouken@1895
   699
    SDL_memcpy(colors, &palette->colors[firstcolor],
slouken@1895
   700
               ncolors * sizeof(*colors));
slouken@1895
   701
    return 0;
slouken@0
   702
}
slouken@0
   703
slouken@1895
   704
SDL_WindowID
slouken@1895
   705
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
   706
{
slouken@1895
   707
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@1895
   708
                                  SDL_WINDOW_OPENGL |
slouken@1895
   709
                                  SDL_WINDOW_SHOWN |
slouken@1895
   710
                                  SDL_WINDOW_BORDERLESS |
slouken@1895
   711
                                  SDL_WINDOW_RESIZABLE |
slouken@1895
   712
                                  SDL_WINDOW_MAXIMIZED |
slouken@1895
   713
                                  SDL_WINDOW_MINIMIZED |
slouken@1895
   714
                                  SDL_WINDOW_INPUT_GRABBED);
slouken@1895
   715
    SDL_VideoDisplay *display;
slouken@1895
   716
    SDL_Window window;
slouken@1895
   717
    int num_windows;
slouken@1895
   718
    SDL_Window *windows;
slouken@0
   719
slouken@1895
   720
    if (!_this) {
slouken@1895
   721
        SDL_SetError("Video subsystem has not been initialized");
slouken@1895
   722
        return 0;
slouken@1895
   723
    }
slouken@0
   724
slouken@1895
   725
    SDL_zero(window);
slouken@1895
   726
    window.id = _this->next_object_id++;
slouken@1895
   727
    window.title = title ? SDL_strdup(title) : NULL;
slouken@1895
   728
    window.x = x;
slouken@1895
   729
    window.y = y;
slouken@1895
   730
    window.w = w;
slouken@1895
   731
    window.h = h;
slouken@1895
   732
    window.flags = (flags & allowed_flags);
slouken@1895
   733
    window.display = _this->current_display;
slouken@0
   734
slouken@1895
   735
    if (_this->CreateWindow && _this->CreateWindow(_this, &window) < 0) {
slouken@1895
   736
        if (window.title) {
slouken@1895
   737
            SDL_free(window.title);
slouken@1895
   738
        }
slouken@1895
   739
        return 0;
slouken@1895
   740
    }
slouken@0
   741
slouken@1895
   742
    display = &SDL_CurrentDisplay;
slouken@1895
   743
    num_windows = display->num_windows;
slouken@1895
   744
    windows =
slouken@1895
   745
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@1895
   746
    if (!windows) {
slouken@1895
   747
        if (_this->DestroyWindow) {
slouken@1895
   748
            _this->DestroyWindow(_this, &window);
slouken@1895
   749
        }
slouken@1895
   750
        if (window.title) {
slouken@1895
   751
            SDL_free(window.title);
slouken@1895
   752
        }
slouken@1895
   753
        return 0;
slouken@1895
   754
    }
slouken@1895
   755
    windows[num_windows] = window;
slouken@1895
   756
    display->windows = windows;
slouken@1895
   757
    display->num_windows++;
slouken@0
   758
slouken@1895
   759
    if (FULLSCREEN_VISIBLE(&window)) {
slouken@1895
   760
        /* Hide any other fullscreen windows */
slouken@1895
   761
        int i;
slouken@1895
   762
        for (i = 0; i < display->num_windows; ++i) {
slouken@1895
   763
            SDL_Window *other = &display->windows[i];
slouken@1895
   764
            if (other->id != window.id && FULLSCREEN_VISIBLE(other)) {
slouken@1895
   765
                SDL_MinimizeWindow(other->id);
slouken@1895
   766
            }
slouken@1895
   767
        }
slouken@1895
   768
        SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
   769
    }
slouken@0
   770
slouken@1895
   771
    return window.id;
slouken@1895
   772
}
slouken@0
   773
slouken@1895
   774
SDL_WindowID
slouken@1895
   775
SDL_CreateWindowFrom(const void *data)
slouken@1895
   776
{
slouken@1895
   777
    SDL_VideoDisplay *display;
slouken@1895
   778
    SDL_Window window;
slouken@1895
   779
    int num_windows;
slouken@1895
   780
    SDL_Window *windows;
slouken@0
   781
slouken@1895
   782
    if (!_this) {
slouken@1895
   783
        SDL_SetError("Video subsystem has not been initialized");
slouken@1895
   784
        return (0);
slouken@1895
   785
    }
slouken@1895
   786
slouken@1895
   787
    SDL_zero(window);
slouken@1895
   788
    window.id = _this->next_object_id++;
slouken@1895
   789
    window.display = _this->current_display;
slouken@1895
   790
slouken@1895
   791
    if (!_this->CreateWindowFrom ||
slouken@1895
   792
        _this->CreateWindowFrom(_this, &window, data) < 0) {
slouken@1895
   793
        return 0;
slouken@1895
   794
    }
slouken@1895
   795
slouken@1895
   796
    display = &SDL_CurrentDisplay;
slouken@1895
   797
    num_windows = display->num_windows;
slouken@1895
   798
    windows =
slouken@1895
   799
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@1895
   800
    if (!windows) {
slouken@1895
   801
        if (_this->DestroyWindow) {
slouken@1895
   802
            _this->DestroyWindow(_this, &window);
slouken@1895
   803
        }
slouken@1895
   804
        if (window.title) {
slouken@1895
   805
            SDL_free(window.title);
slouken@1895
   806
        }
slouken@1895
   807
        return 0;
slouken@1895
   808
    }
slouken@1895
   809
    windows[num_windows] = window;
slouken@1895
   810
    display->windows = windows;
slouken@1895
   811
    display->num_windows++;
slouken@1895
   812
slouken@1895
   813
    return window.id;
slouken@1895
   814
}
slouken@1895
   815
slouken@1895
   816
SDL_Window *
slouken@1895
   817
SDL_GetWindowFromID(SDL_WindowID windowID)
slouken@1895
   818
{
slouken@1895
   819
    int i, j;
slouken@1895
   820
slouken@1895
   821
    if (!_this) {
slouken@1895
   822
        return NULL;
slouken@1895
   823
    }
slouken@1895
   824
slouken@1895
   825
    for (i = 0; i < _this->num_displays; ++i) {
slouken@1895
   826
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
   827
        for (j = 0; j < display->num_windows; ++j) {
slouken@1895
   828
            SDL_Window *window = &display->windows[j];
slouken@1895
   829
            if (window->id == windowID) {
slouken@1895
   830
                return window;
slouken@1895
   831
            }
slouken@1895
   832
        }
slouken@1895
   833
    }
slouken@1895
   834
    return NULL;
slouken@1895
   835
}
slouken@1895
   836
slouken@1895
   837
SDL_VideoDisplay *
slouken@1895
   838
SDL_GetDisplayFromWindow(SDL_Window * window)
slouken@1895
   839
{
slouken@1895
   840
    if (!_this) {
slouken@1895
   841
        return NULL;
slouken@1895
   842
    }
slouken@1895
   843
    return &_this->displays[window->display];
slouken@1895
   844
}
slouken@1895
   845
slouken@1895
   846
Uint32
slouken@1895
   847
SDL_GetWindowFlags(SDL_WindowID windowID)
slouken@1895
   848
{
slouken@1895
   849
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   850
slouken@1895
   851
    if (!window) {
slouken@1895
   852
        return 0;
slouken@1895
   853
    }
slouken@1895
   854
    return window->flags;
slouken@1895
   855
}
slouken@1895
   856
slouken@1895
   857
void
slouken@1895
   858
SDL_SetWindowTitle(SDL_WindowID windowID, const char *title)
slouken@1895
   859
{
slouken@1895
   860
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   861
slouken@1895
   862
    if (!window) {
slouken@1895
   863
        return;
slouken@1895
   864
    }
slouken@1895
   865
    if (window->title) {
slouken@1895
   866
        SDL_free(window->title);
slouken@1895
   867
    }
slouken@1895
   868
    window->title = SDL_strdup(title);
slouken@1895
   869
slouken@1895
   870
    if (_this->SetWindowTitle) {
slouken@1895
   871
        _this->SetWindowTitle(_this, window);
slouken@1895
   872
    }
slouken@1895
   873
}
slouken@1895
   874
slouken@1895
   875
const char *
slouken@1895
   876
SDL_GetWindowTitle(SDL_WindowID windowID)
slouken@1895
   877
{
slouken@1895
   878
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   879
slouken@1895
   880
    if (!window) {
slouken@1895
   881
        return NULL;
slouken@1895
   882
    }
slouken@1895
   883
    return window->title;
slouken@1895
   884
}
slouken@1895
   885
slouken@1895
   886
void
slouken@1895
   887
SDL_SetWindowData(SDL_WindowID windowID, void *userdata)
slouken@1895
   888
{
slouken@1895
   889
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   890
slouken@1895
   891
    if (!window) {
slouken@1895
   892
        return;
slouken@1895
   893
    }
slouken@1895
   894
    window->userdata = userdata;
slouken@1895
   895
}
slouken@1895
   896
slouken@1895
   897
void *
slouken@1895
   898
SDL_GetWindowData(SDL_WindowID windowID)
slouken@1895
   899
{
slouken@1895
   900
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   901
slouken@1895
   902
    if (!window) {
slouken@1895
   903
        return NULL;
slouken@1895
   904
    }
slouken@1895
   905
    return window->userdata;
slouken@1895
   906
}
slouken@1895
   907
slouken@1895
   908
void
slouken@1895
   909
SDL_SetWindowPosition(SDL_WindowID windowID, int x, int y)
slouken@1895
   910
{
slouken@1895
   911
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   912
slouken@1895
   913
    if (!window) {
slouken@1895
   914
        return;
slouken@1895
   915
    }
slouken@1895
   916
slouken@1895
   917
    if (x != SDL_WINDOWPOS_UNDEFINED) {
slouken@1895
   918
        window->x = x;
slouken@1895
   919
    }
slouken@1895
   920
    if (y != SDL_WINDOWPOS_UNDEFINED) {
slouken@1895
   921
        window->y = y;
slouken@1895
   922
    }
slouken@1895
   923
slouken@1895
   924
    if (_this->SetWindowPosition) {
slouken@1895
   925
        _this->SetWindowPosition(_this, window);
slouken@1895
   926
    }
slouken@1895
   927
}
slouken@1895
   928
slouken@1895
   929
void
slouken@1895
   930
SDL_GetWindowPosition(SDL_WindowID windowID, int *x, int *y)
slouken@1895
   931
{
slouken@1895
   932
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   933
slouken@1895
   934
    if (!window) {
slouken@1895
   935
        return;
slouken@1895
   936
    }
slouken@1895
   937
    if (x) {
slouken@1895
   938
        *x = window->x;
slouken@1895
   939
    }
slouken@1895
   940
    if (y) {
slouken@1895
   941
        *y = window->y;
slouken@1895
   942
    }
slouken@1895
   943
}
slouken@1895
   944
slouken@1895
   945
void
slouken@1895
   946
SDL_SetWindowSize(SDL_WindowID windowID, int w, int h)
slouken@1895
   947
{
slouken@1895
   948
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   949
slouken@1895
   950
    if (!window) {
slouken@1895
   951
        return;
slouken@1895
   952
    }
slouken@1895
   953
slouken@1895
   954
    window->w = w;
slouken@1895
   955
    window->h = h;
slouken@1895
   956
slouken@1895
   957
    if (_this->SetWindowSize) {
slouken@1895
   958
        _this->SetWindowSize(_this, window);
slouken@1895
   959
    }
slouken@1895
   960
}
slouken@1895
   961
slouken@1895
   962
void
slouken@1895
   963
SDL_GetWindowSize(SDL_WindowID windowID, int *w, int *h)
slouken@1895
   964
{
slouken@1895
   965
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   966
slouken@1895
   967
    if (!window) {
slouken@1895
   968
        return;
slouken@1895
   969
    }
slouken@1895
   970
    if (w) {
slouken@1895
   971
        *w = window->w;
slouken@1895
   972
    }
slouken@1895
   973
    if (h) {
slouken@1895
   974
        *h = window->h;
slouken@1895
   975
    }
slouken@1895
   976
}
slouken@1895
   977
slouken@1895
   978
void
slouken@1895
   979
SDL_ShowWindow(SDL_WindowID windowID)
slouken@1895
   980
{
slouken@1895
   981
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   982
slouken@1895
   983
    if (!window || (window->flags & SDL_WINDOW_SHOWN)) {
slouken@1895
   984
        return;
slouken@1895
   985
    }
slouken@1895
   986
slouken@1895
   987
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
   988
slouken@1895
   989
    if (_this->ShowWindow) {
slouken@1895
   990
        _this->ShowWindow(_this, window);
slouken@1895
   991
    }
slouken@1895
   992
}
slouken@1895
   993
slouken@1895
   994
void
slouken@1895
   995
SDL_HideWindow(SDL_WindowID windowID)
slouken@1895
   996
{
slouken@1895
   997
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   998
slouken@1895
   999
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@1895
  1000
        return;
slouken@1895
  1001
    }
slouken@1895
  1002
slouken@1895
  1003
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1004
slouken@1895
  1005
    if (_this->HideWindow) {
slouken@1895
  1006
        _this->HideWindow(_this, window);
slouken@1895
  1007
    }
slouken@1895
  1008
}
slouken@1895
  1009
slouken@1895
  1010
void
slouken@1895
  1011
SDL_RaiseWindow(SDL_WindowID windowID)
slouken@1895
  1012
{
slouken@1895
  1013
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1014
slouken@1895
  1015
    if (!window) {
slouken@1895
  1016
        return;
slouken@1895
  1017
    }
slouken@1895
  1018
slouken@1895
  1019
    if (_this->RaiseWindow) {
slouken@1895
  1020
        _this->RaiseWindow(_this, window);
slouken@1895
  1021
    }
slouken@1895
  1022
}
slouken@1895
  1023
slouken@1895
  1024
void
slouken@1895
  1025
SDL_MaximizeWindow(SDL_WindowID windowID)
slouken@1895
  1026
{
slouken@1895
  1027
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1028
slouken@1895
  1029
    if (!window || (window->flags & SDL_WINDOW_MAXIMIZED)) {
slouken@1895
  1030
        return;
slouken@1895
  1031
    }
slouken@1895
  1032
slouken@1895
  1033
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@1895
  1034
slouken@1895
  1035
    if (_this->MaximizeWindow) {
slouken@1895
  1036
        _this->MaximizeWindow(_this, window);
slouken@1895
  1037
    }
slouken@1895
  1038
}
slouken@1895
  1039
slouken@1895
  1040
void
slouken@1895
  1041
SDL_MinimizeWindow(SDL_WindowID windowID)
slouken@1895
  1042
{
slouken@1895
  1043
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1044
slouken@1895
  1045
    if (!window || (window->flags & SDL_WINDOW_MINIMIZED)) {
slouken@1895
  1046
        return;
slouken@1895
  1047
    }
slouken@1895
  1048
slouken@1895
  1049
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@1895
  1050
slouken@1895
  1051
    if (_this->MinimizeWindow) {
slouken@1895
  1052
        _this->MinimizeWindow(_this, window);
slouken@1895
  1053
    }
slouken@1895
  1054
}
slouken@1895
  1055
slouken@1895
  1056
void
slouken@1895
  1057
SDL_RestoreWindow(SDL_WindowID windowID)
slouken@1895
  1058
{
slouken@1895
  1059
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1060
slouken@1895
  1061
    if (!window
slouken@1895
  1062
        || (window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@1895
  1063
        return;
slouken@1895
  1064
    }
slouken@1895
  1065
slouken@1895
  1066
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@1895
  1067
slouken@1895
  1068
    if (_this->RestoreWindow) {
slouken@1895
  1069
        _this->RestoreWindow(_this, window);
slouken@1895
  1070
    }
slouken@1895
  1071
}
slouken@1895
  1072
slouken@1895
  1073
int
slouken@1895
  1074
SDL_SetWindowFullscreen(SDL_WindowID windowID, int fullscreen)
slouken@1895
  1075
{
slouken@1895
  1076
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1077
slouken@1895
  1078
    if (!window) {
slouken@1895
  1079
        return -1;
slouken@1895
  1080
    }
slouken@1895
  1081
slouken@1895
  1082
    if (fullscreen) {
slouken@1895
  1083
        fullscreen = SDL_WINDOW_FULLSCREEN;
slouken@1895
  1084
    }
slouken@1895
  1085
    if ((window->flags & SDL_WINDOW_FULLSCREEN) == fullscreen) {
slouken@1895
  1086
        return 0;
slouken@1895
  1087
    }
slouken@1895
  1088
slouken@1895
  1089
    if (fullscreen) {
slouken@1895
  1090
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
  1091
slouken@1895
  1092
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
  1093
            SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1094
slouken@1895
  1095
            /* Hide any other fullscreen windows */
slouken@1895
  1096
            int i;
slouken@1895
  1097
            for (i = 0; i < display->num_windows; ++i) {
slouken@1895
  1098
                SDL_Window *other = &display->windows[i];
slouken@1895
  1099
                if (other->id != windowID && FULLSCREEN_VISIBLE(other)) {
slouken@1895
  1100
                    SDL_MinimizeWindow(other->id);
slouken@1895
  1101
                }
slouken@1895
  1102
            }
slouken@1895
  1103
slouken@1895
  1104
            SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
  1105
        }
slouken@1895
  1106
    } else {
slouken@1895
  1107
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@1895
  1108
slouken@1895
  1109
        if (FULLSCREEN_VISIBLE(window)) {
slouken@1895
  1110
            SDL_SetDisplayMode(NULL);
slouken@1895
  1111
        }
slouken@1895
  1112
    }
slouken@1895
  1113
    return 0;
slouken@1895
  1114
}
slouken@1895
  1115
slouken@1895
  1116
void
slouken@1895
  1117
SDL_SetWindowGrab(SDL_WindowID windowID, int mode)
slouken@1895
  1118
{
slouken@1895
  1119
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1120
slouken@1895
  1121
    if (!window || (!!mode == !!(window->flags & SDL_WINDOW_INPUT_GRABBED))) {
slouken@1895
  1122
        return;
slouken@1895
  1123
    }
slouken@1895
  1124
slouken@1895
  1125
    if (mode) {
slouken@1895
  1126
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@1895
  1127
    } else {
slouken@1895
  1128
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@1895
  1129
    }
slouken@1895
  1130
slouken@1895
  1131
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@1895
  1132
        _this->SetWindowGrab(_this, window);
slouken@1895
  1133
    }
slouken@1895
  1134
}
slouken@1895
  1135
slouken@1895
  1136
int
slouken@1895
  1137
SDL_GetWindowGrab(SDL_WindowID windowID)
slouken@1895
  1138
{
slouken@1895
  1139
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1140
slouken@1895
  1141
    if (!window) {
slouken@1895
  1142
        return 0;
slouken@1895
  1143
    }
slouken@1895
  1144
slouken@1895
  1145
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1146
}
slouken@1895
  1147
slouken@1895
  1148
void
slouken@1895
  1149
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1150
{
slouken@1895
  1151
}
slouken@1895
  1152
slouken@1895
  1153
void
slouken@1895
  1154
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1155
{
slouken@1895
  1156
}
slouken@1895
  1157
slouken@1895
  1158
void
slouken@1895
  1159
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1160
{
slouken@1895
  1161
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1162
slouken@1895
  1163
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@1895
  1164
        SDL_SetDisplayMode(display->fullscreen_mode);
slouken@1895
  1165
    }
slouken@1895
  1166
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@1895
  1167
        _this->SetDisplayGammaRamp(_this, display->gamma);
slouken@1895
  1168
    }
slouken@1895
  1169
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) && _this->SetWindowGrab) {
slouken@1895
  1170
        _this->SetWindowGrab(_this, window);
slouken@1895
  1171
    }
slouken@1895
  1172
}
slouken@1895
  1173
slouken@1895
  1174
void
slouken@1895
  1175
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1176
{
slouken@1895
  1177
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1178
slouken@1895
  1179
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@1895
  1180
        SDL_MinimizeWindow(window->id);
slouken@1895
  1181
        SDL_SetDisplayMode(NULL);
slouken@1895
  1182
    }
slouken@1895
  1183
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@1895
  1184
        _this->SetDisplayGammaRamp(_this, display->saved_gamma);
slouken@1895
  1185
    }
slouken@1895
  1186
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) && _this->SetWindowGrab) {
slouken@1895
  1187
        _this->SetWindowGrab(_this, window);
slouken@1895
  1188
    }
slouken@1895
  1189
}
slouken@1895
  1190
slouken@1895
  1191
SDL_WindowID
slouken@1895
  1192
SDL_GetFocusWindow(void)
slouken@1895
  1193
{
slouken@1895
  1194
    SDL_VideoDisplay *display;
slouken@1895
  1195
    int i;
slouken@1895
  1196
slouken@1895
  1197
    if (!_this) {
slouken@1895
  1198
        return 0;
slouken@1895
  1199
    }
slouken@1895
  1200
slouken@1895
  1201
    display = &SDL_CurrentDisplay;
slouken@1895
  1202
    for (i = 0; i < display->num_windows; ++i) {
slouken@1895
  1203
        SDL_Window *window = &display->windows[i];
slouken@1895
  1204
slouken@1895
  1205
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@1895
  1206
            return window->id;
slouken@1895
  1207
        }
slouken@1895
  1208
    }
slouken@1895
  1209
    return 0;
slouken@1895
  1210
}
slouken@1895
  1211
slouken@1895
  1212
void
slouken@1895
  1213
SDL_DestroyWindow(SDL_WindowID windowID)
slouken@1895
  1214
{
slouken@1895
  1215
    int i, j;
slouken@1895
  1216
slouken@1895
  1217
    if (!_this) {
slouken@1895
  1218
        return;
slouken@1895
  1219
    }
slouken@1895
  1220
slouken@1895
  1221
    /* Restore video mode, etc. */
slouken@1895
  1222
    SDL_SendWindowEvent(windowID, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@1895
  1223
slouken@1895
  1224
    for (i = 0; i < _this->num_displays; ++i) {
slouken@1895
  1225
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  1226
        for (j = 0; j < display->num_windows; ++j) {
slouken@1895
  1227
            SDL_Window *window = &display->windows[j];
slouken@1895
  1228
            if (window->id != windowID) {
slouken@1895
  1229
                continue;
slouken@1895
  1230
            }
slouken@1895
  1231
            if (window->renderer) {
slouken@1895
  1232
                SDL_DestroyRenderer(window->id);
slouken@1895
  1233
            }
slouken@1895
  1234
            if (_this->DestroyWindow) {
slouken@1895
  1235
                _this->DestroyWindow(_this, window);
slouken@1895
  1236
            }
slouken@1895
  1237
            if (window->title) {
slouken@1895
  1238
                SDL_free(window->title);
slouken@1895
  1239
            }
slouken@1895
  1240
            if (j != display->num_windows - 1) {
slouken@1895
  1241
                SDL_memcpy(&display->windows[i],
slouken@1895
  1242
                           &display->windows[i + 1],
slouken@1895
  1243
                           (display->num_windows - i - 1) * sizeof(*window));
slouken@1895
  1244
            }
slouken@1895
  1245
            --display->num_windows;
slouken@1895
  1246
            return;
slouken@1895
  1247
        }
slouken@1895
  1248
    }
slouken@1895
  1249
}
slouken@1895
  1250
slouken@1895
  1251
void
slouken@1895
  1252
SDL_AddRenderDriver(int displayIndex, const SDL_RenderDriver * driver)
slouken@1895
  1253
{
slouken@1895
  1254
    SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@1895
  1255
    SDL_RenderDriver *render_drivers;
slouken@1895
  1256
slouken@1895
  1257
    render_drivers =
slouken@1895
  1258
        SDL_realloc(display->render_drivers,
slouken@1895
  1259
                    (display->num_render_drivers +
slouken@1895
  1260
                     1) * sizeof(*render_drivers));
slouken@1895
  1261
    if (render_drivers) {
slouken@1895
  1262
        render_drivers[display->num_render_drivers] = *driver;
slouken@1895
  1263
        display->render_drivers = render_drivers;
slouken@1895
  1264
        display->num_render_drivers++;
slouken@1895
  1265
    }
slouken@1895
  1266
}
slouken@1895
  1267
slouken@1895
  1268
int
slouken@1895
  1269
SDL_GetNumRenderers(void)
slouken@1895
  1270
{
slouken@1895
  1271
    if (_this) {
slouken@1895
  1272
        return SDL_CurrentDisplay.num_render_drivers;
slouken@1895
  1273
    }
slouken@1895
  1274
    return 0;
slouken@1895
  1275
}
slouken@1895
  1276
slouken@1895
  1277
int
slouken@1895
  1278
SDL_GetRendererInfo(int index, SDL_RendererInfo * info)
slouken@1895
  1279
{
slouken@1895
  1280
    if (index < 0 || index >= SDL_GetNumRenderers()) {
slouken@1895
  1281
        SDL_SetError("index must be in the range of 0 - %d",
slouken@1895
  1282
                     SDL_GetNumRenderers() - 1);
slouken@1895
  1283
        return -1;
slouken@1895
  1284
    }
slouken@1895
  1285
    *info = SDL_CurrentDisplay.render_drivers[index].info;
slouken@1895
  1286
    return 0;
slouken@1895
  1287
}
slouken@1895
  1288
slouken@1895
  1289
int
slouken@1895
  1290
SDL_CreateRenderer(SDL_WindowID windowID, int index, Uint32 flags)
slouken@1895
  1291
{
slouken@1895
  1292
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1293
slouken@1895
  1294
    if (!window) {
slouken@1895
  1295
        return 0;
slouken@1895
  1296
    }
slouken@1895
  1297
slouken@1895
  1298
    if (index < 0) {
slouken@1895
  1299
        int n = SDL_GetNumRenderers();
slouken@1895
  1300
        for (index = 0; index < n; ++index) {
slouken@1895
  1301
            SDL_RenderDriver *driver =
slouken@1895
  1302
                &SDL_CurrentDisplay.render_drivers[index];
slouken@1895
  1303
slouken@1895
  1304
            /* Skip minimal drivers in automatic scans */
slouken@1895
  1305
            if (!(flags & SDL_Renderer_Minimal)
slouken@1895
  1306
                && (driver->info.flags & SDL_Renderer_Minimal)) {
slouken@1895
  1307
                continue;
slouken@1895
  1308
            }
slouken@1895
  1309
            if ((driver->info.flags & flags) == flags) {
slouken@1895
  1310
                break;
slouken@1895
  1311
            }
slouken@1895
  1312
        }
slouken@1895
  1313
        if (index == n) {
slouken@1895
  1314
            SDL_SetError("Couldn't find matching render driver");
slouken@1895
  1315
            return -1;
slouken@1895
  1316
        }
slouken@1895
  1317
    }
slouken@1895
  1318
slouken@1895
  1319
    if (index >= SDL_GetNumRenderers()) {
slouken@1895
  1320
        SDL_SetError("index must be -1 or in the range of 0 - %d",
slouken@1895
  1321
                     SDL_GetNumRenderers() - 1);
slouken@1895
  1322
        return -1;
slouken@1895
  1323
    }
slouken@1895
  1324
slouken@1895
  1325
    /* Free any existing renderer */
slouken@1895
  1326
    SDL_DestroyRenderer(windowID);
slouken@1895
  1327
slouken@1895
  1328
    /* Create a new renderer instance */
slouken@1895
  1329
    window->renderer =
slouken@1895
  1330
        SDL_CurrentDisplay.render_drivers[index].CreateRenderer(window,
slouken@1895
  1331
                                                                flags);
slouken@1895
  1332
    if (!window->renderer) {
slouken@1895
  1333
        return -1;
slouken@1895
  1334
    }
slouken@1895
  1335
    SDL_CurrentDisplay.current_renderer = window->renderer;
slouken@1895
  1336
slouken@1895
  1337
    return 0;
slouken@1895
  1338
}
slouken@1895
  1339
slouken@1895
  1340
int
slouken@1895
  1341
SDL_SelectRenderer(SDL_WindowID windowID)
slouken@1895
  1342
{
slouken@1895
  1343
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1344
slouken@1895
  1345
    if (!window || !window->renderer) {
slouken@1895
  1346
        return -1;
slouken@1895
  1347
    }
slouken@1895
  1348
    SDL_CurrentDisplay.current_renderer = window->renderer;
slouken@1895
  1349
    return 0;
slouken@1895
  1350
}
slouken@1895
  1351
slouken@1895
  1352
SDL_TextureID
slouken@1895
  1353
SDL_CreateTexture(Uint32 format, int access, int w, int h)
slouken@1895
  1354
{
slouken@1895
  1355
    int hash;
slouken@1895
  1356
    SDL_Renderer *renderer;
slouken@1895
  1357
    SDL_Texture *texture;
slouken@1895
  1358
slouken@1895
  1359
    if (!_this) {
slouken@1895
  1360
        return 0;
slouken@1895
  1361
    }
slouken@1895
  1362
slouken@1895
  1363
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1364
    if (!renderer || !renderer->CreateTexture) {
slouken@1895
  1365
        return 0;
slouken@1895
  1366
    }
slouken@1895
  1367
slouken@1895
  1368
    texture = (SDL_Texture *) SDL_malloc(sizeof(*texture));
slouken@1895
  1369
    if (!texture) {
slouken@1895
  1370
        SDL_OutOfMemory();
slouken@1895
  1371
        return 0;
slouken@1895
  1372
    }
slouken@1895
  1373
slouken@1895
  1374
    SDL_zerop(texture);
slouken@1895
  1375
    texture->id = _this->next_object_id++;
slouken@1895
  1376
    texture->format = format;
slouken@1895
  1377
    texture->access = access;
slouken@1895
  1378
    texture->w = w;
slouken@1895
  1379
    texture->h = h;
slouken@1895
  1380
    texture->renderer = renderer;
slouken@1895
  1381
slouken@1895
  1382
    if (renderer->CreateTexture(renderer, texture) < 0) {
slouken@1895
  1383
        SDL_free(texture);
slouken@1895
  1384
        return 0;
slouken@1895
  1385
    }
slouken@1895
  1386
slouken@1895
  1387
    hash = (texture->id % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1388
    texture->next = SDL_CurrentDisplay.textures[hash];
slouken@1895
  1389
    SDL_CurrentDisplay.textures[hash] = texture;
slouken@1895
  1390
slouken@1895
  1391
    return texture->id;
slouken@1895
  1392
}
slouken@1895
  1393
slouken@1895
  1394
SDL_TextureID
slouken@1895
  1395
SDL_CreateTextureFromSurface(Uint32 format, int access, SDL_Surface * surface)
slouken@1895
  1396
{
slouken@1895
  1397
    SDL_TextureID textureID;
slouken@1895
  1398
    Uint32 surface_flags = surface->flags;
slouken@1895
  1399
    SDL_PixelFormat *fmt = surface->format;
slouken@1895
  1400
    Uint8 alpha;
slouken@1895
  1401
    SDL_Rect bounds;
slouken@1895
  1402
    SDL_Surface dst;
slouken@1895
  1403
    int bpp;
slouken@1895
  1404
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@1895
  1405
slouken@1895
  1406
    if (!surface) {
slouken@1895
  1407
        SDL_SetError("SDL_CreateTextureFromSurface() passed NULL surface");
slouken@1895
  1408
        return 0;
slouken@1895
  1409
    }
slouken@1895
  1410
slouken@1895
  1411
    if (format) {
slouken@1895
  1412
        if (!SDL_PixelFormatEnumToMasks
slouken@1895
  1413
            (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@1895
  1414
            SDL_SetError("Unknown pixel format");
slouken@1895
  1415
            return 0;
slouken@1895
  1416
        }
slouken@1895
  1417
    } else {
slouken@1895
  1418
        if (fmt->Amask || !(surface_flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA))) {
slouken@1895
  1419
            bpp = fmt->BitsPerPixel;
slouken@1895
  1420
            Rmask = fmt->Rmask;
slouken@1895
  1421
            Gmask = fmt->Gmask;
slouken@1895
  1422
            Bmask = fmt->Bmask;
slouken@1895
  1423
            Amask = fmt->Amask;
slouken@1895
  1424
        } else {
slouken@1895
  1425
            /* Need a format with alpha */
slouken@1895
  1426
            bpp = 32;
slouken@1895
  1427
            Rmask = 0x00FF0000;
slouken@1895
  1428
            Gmask = 0x0000FF00;
slouken@1895
  1429
            Bmask = 0x000000FF;
slouken@1895
  1430
            Amask = 0xFF000000;
slouken@1895
  1431
        }
slouken@1895
  1432
        format = SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
slouken@1895
  1433
        if (!format) {
slouken@1895
  1434
            SDL_SetError("Unknown pixel format");
slouken@1895
  1435
            return 0;
slouken@1895
  1436
        }
slouken@1895
  1437
    }
slouken@1895
  1438
slouken@1895
  1439
    textureID = SDL_CreateTexture(format, access, surface->w, surface->h);
slouken@1895
  1440
    if (!textureID) {
slouken@1895
  1441
        return 0;
slouken@1895
  1442
    }
slouken@1895
  1443
slouken@1895
  1444
    /* Set up a destination surface for the texture update */
slouken@1895
  1445
    SDL_zero(dst);
slouken@1895
  1446
    dst.format = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask);
slouken@1895
  1447
    if (!dst.format) {
slouken@1895
  1448
        SDL_DestroyTexture(textureID);
slouken@1895
  1449
        return 0;
slouken@1895
  1450
    }
slouken@1895
  1451
    dst.w = surface->w;
slouken@1895
  1452
    dst.h = surface->h;
slouken@1895
  1453
    if (SDL_LockTexture(textureID, NULL, 1, &dst.pixels, &dst.pitch) == 0) {
slouken@1895
  1454
        dst.flags |= SDL_PREALLOC;
slouken@1895
  1455
    } else {
slouken@1895
  1456
        dst.pitch = SDL_CalculatePitch(&dst);
slouken@1895
  1457
        dst.pixels = SDL_malloc(dst.h * dst.pitch);
slouken@1895
  1458
        if (!dst.pixels) {
slouken@1895
  1459
            SDL_DestroyTexture(textureID);
slouken@1895
  1460
            SDL_FreeFormat(dst.format);
slouken@1895
  1461
            SDL_OutOfMemory();
slouken@1895
  1462
            return 0;
slouken@1895
  1463
        }
slouken@1895
  1464
    }
slouken@1895
  1465
slouken@1895
  1466
    /* Copy the palette if any */
slouken@1895
  1467
    if (SDL_ISPIXELFORMAT_INDEXED(format)) {
slouken@1895
  1468
        if (fmt->palette) {
slouken@1895
  1469
            SDL_SetTexturePalette(textureID, fmt->palette->colors, 0,
slouken@1895
  1470
                                  fmt->palette->ncolors);
slouken@1895
  1471
            SDL_SetSurfacePalette(&dst, fmt->palette);
slouken@1895
  1472
        } else {
slouken@1895
  1473
            dst.format->palette =
slouken@1895
  1474
                SDL_AllocPalette((1 << SDL_BITSPERPIXEL(format)));
slouken@1895
  1475
            if (!dst.format->palette) {
slouken@1895
  1476
                SDL_DestroyTexture(textureID);
slouken@1895
  1477
                SDL_FreeFormat(dst.format);
slouken@1895
  1478
                return 0;
slouken@1895
  1479
            }
slouken@1895
  1480
            SDL_DitherColors(dst.format->palette->colors,
slouken@1895
  1481
                             SDL_BITSPERPIXEL(format));
slouken@1895
  1482
        }
slouken@1895
  1483
    }
slouken@1895
  1484
slouken@1895
  1485
    /* Make the texture transparent if the surface has colorkey */
slouken@1895
  1486
    if (surface_flags & SDL_SRCCOLORKEY) {
slouken@1895
  1487
        int row;
slouken@1895
  1488
        int length = dst.w * dst.format->BytesPerPixel;
slouken@1895
  1489
        Uint8 *p = (Uint8 *) dst.pixels;
slouken@1895
  1490
        for (row = 0; row < dst.h; ++row) {
slouken@1895
  1491
            SDL_memset(p, 0, length);
slouken@1895
  1492
            p += dst.pitch;
slouken@1895
  1493
        }
slouken@1895
  1494
    }
slouken@1895
  1495
slouken@1895
  1496
    /* Copy over the alpha channel */
slouken@1895
  1497
    if (surface_flags & SDL_SRCALPHA) {
slouken@1895
  1498
        if (fmt->Amask) {
slouken@1895
  1499
            surface->flags &= ~SDL_SRCALPHA;
slouken@1895
  1500
        } else {
slouken@1895
  1501
            /* FIXME: Need to make sure the texture has an alpha channel
slouken@1895
  1502
             *        and copy 'alpha' into the texture alpha channel.
slouken@1895
  1503
             */
slouken@1895
  1504
            alpha = surface->format->alpha;
slouken@1895
  1505
            SDL_SetAlpha(surface, 0, 0);
slouken@1895
  1506
        }
slouken@1895
  1507
    }
slouken@1895
  1508
slouken@1895
  1509
    /* Copy over the image data */
slouken@1895
  1510
    bounds.x = 0;
slouken@1895
  1511
    bounds.y = 0;
slouken@1895
  1512
    bounds.w = surface->w;
slouken@1895
  1513
    bounds.h = surface->h;
slouken@1895
  1514
    SDL_LowerBlit(surface, &bounds, &dst, &bounds);
slouken@1895
  1515
slouken@1895
  1516
    /* Clean up the original surface */
slouken@1895
  1517
    if ((surface_flags & SDL_SRCALPHA) == SDL_SRCALPHA) {
slouken@1895
  1518
        Uint32 aflags = surface_flags & (SDL_SRCALPHA | SDL_RLEACCELOK);
slouken@1895
  1519
        if (fmt->Amask) {
slouken@1895
  1520
            surface->flags |= SDL_SRCALPHA;
slouken@1895
  1521
        } else {
slouken@1895
  1522
            SDL_SetAlpha(surface, aflags, alpha);
slouken@1895
  1523
        }
slouken@1895
  1524
    }
slouken@1895
  1525
slouken@1895
  1526
    /* Update the texture */
slouken@1895
  1527
    if (dst.flags & SDL_PREALLOC) {
slouken@1895
  1528
        SDL_UnlockTexture(textureID);
slouken@1895
  1529
    } else {
slouken@1895
  1530
        SDL_UpdateTexture(textureID, NULL, dst.pixels, dst.pitch);
slouken@1895
  1531
        SDL_free(dst.pixels);
slouken@1895
  1532
    }
slouken@1895
  1533
    SDL_FreeFormat(dst.format);
slouken@1895
  1534
slouken@1895
  1535
    return textureID;
slouken@1895
  1536
}
slouken@1895
  1537
slouken@1895
  1538
static __inline__ SDL_Texture *
slouken@1895
  1539
SDL_GetTextureFromID(SDL_TextureID textureID)
slouken@1895
  1540
{
slouken@1895
  1541
    int hash;
slouken@1895
  1542
    SDL_Texture *texture;
slouken@1895
  1543
slouken@1895
  1544
    if (!_this) {
slouken@1895
  1545
        return NULL;
slouken@1895
  1546
    }
slouken@1895
  1547
slouken@1895
  1548
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1549
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@1895
  1550
         texture = texture->next) {
slouken@1895
  1551
        if (texture->id == textureID) {
slouken@1895
  1552
            return texture;
slouken@1895
  1553
        }
slouken@1895
  1554
    }
slouken@1895
  1555
    return NULL;
slouken@1895
  1556
}
slouken@1895
  1557
slouken@1895
  1558
int
slouken@1895
  1559
SDL_QueryTexture(SDL_TextureID textureID, Uint32 * format, int *access,
slouken@1895
  1560
                 int *w, int *h)
slouken@1895
  1561
{
slouken@1895
  1562
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1563
slouken@1895
  1564
    if (!texture) {
slouken@1895
  1565
        return -1;
slouken@1895
  1566
    }
slouken@1895
  1567
slouken@1895
  1568
    if (format) {
slouken@1895
  1569
        *format = texture->format;
slouken@1895
  1570
    }
slouken@1895
  1571
    if (access) {
slouken@1895
  1572
        *access = texture->access;
slouken@1895
  1573
    }
slouken@1895
  1574
    if (w) {
slouken@1895
  1575
        *w = texture->w;
slouken@1895
  1576
    }
slouken@1895
  1577
    if (h) {
slouken@1895
  1578
        *h = texture->h;
slouken@1895
  1579
    }
slouken@1895
  1580
    return 0;
slouken@1895
  1581
}
slouken@1895
  1582
slouken@1895
  1583
int
slouken@1895
  1584
SDL_QueryTexturePixels(SDL_TextureID textureID, void **pixels, int *pitch)
slouken@1895
  1585
{
slouken@1895
  1586
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1587
    SDL_Renderer *renderer;
slouken@1895
  1588
slouken@1895
  1589
    if (!texture) {
slouken@1895
  1590
        return -1;
slouken@1895
  1591
    }
slouken@1895
  1592
slouken@1895
  1593
    renderer = texture->renderer;
slouken@1895
  1594
    if (!renderer->QueryTexturePixels) {
slouken@1895
  1595
        return -1;
slouken@1895
  1596
    }
slouken@1895
  1597
    return renderer->QueryTexturePixels(renderer, texture, pixels, pitch);
slouken@1895
  1598
}
slouken@1895
  1599
slouken@1895
  1600
int
slouken@1895
  1601
SDL_SetTexturePalette(SDL_TextureID textureID, const SDL_Color * colors,
slouken@1895
  1602
                      int firstcolor, int ncolors)
slouken@1895
  1603
{
slouken@1895
  1604
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1605
    SDL_Renderer *renderer;
slouken@1895
  1606
slouken@1895
  1607
    if (!texture) {
slouken@1895
  1608
        return -1;
slouken@1895
  1609
    }
slouken@1895
  1610
slouken@1895
  1611
    renderer = texture->renderer;
slouken@1895
  1612
    if (!renderer->SetTexturePalette) {
slouken@1895
  1613
        return -1;
slouken@1895
  1614
    }
slouken@1895
  1615
    return renderer->SetTexturePalette(renderer, texture, colors, firstcolor,
slouken@1895
  1616
                                       ncolors);
slouken@1895
  1617
}
slouken@1895
  1618
slouken@1895
  1619
int
slouken@1895
  1620
SDL_GetTexturePalette(SDL_TextureID textureID, SDL_Color * colors,
slouken@1895
  1621
                      int firstcolor, int ncolors)
slouken@1895
  1622
{
slouken@1895
  1623
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1624
    SDL_Renderer *renderer;
slouken@1895
  1625
slouken@1895
  1626
    if (!texture) {
slouken@1895
  1627
        return -1;
slouken@1895
  1628
    }
slouken@1895
  1629
slouken@1895
  1630
    renderer = texture->renderer;
slouken@1895
  1631
    if (!renderer->GetTexturePalette) {
slouken@1895
  1632
        return -1;
slouken@1895
  1633
    }
slouken@1895
  1634
    return renderer->GetTexturePalette(renderer, texture, colors, firstcolor,
slouken@1895
  1635
                                       ncolors);
slouken@1895
  1636
}
slouken@1895
  1637
slouken@1895
  1638
int
slouken@1895
  1639
SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect * rect,
slouken@1895
  1640
                  const void *pixels, int pitch)
slouken@1895
  1641
{
slouken@1895
  1642
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1643
    SDL_Renderer *renderer;
slouken@1895
  1644
    SDL_Rect full_rect;
slouken@1895
  1645
slouken@1895
  1646
    if (!texture) {
slouken@1895
  1647
        return -1;
slouken@1895
  1648
    }
slouken@1895
  1649
slouken@1895
  1650
    renderer = texture->renderer;
slouken@1895
  1651
    if (!renderer->UpdateTexture) {
slouken@1895
  1652
        return -1;
slouken@1895
  1653
    }
slouken@1895
  1654
slouken@1895
  1655
    if (!rect) {
slouken@1895
  1656
        full_rect.x = 0;
slouken@1895
  1657
        full_rect.y = 0;
slouken@1895
  1658
        full_rect.w = texture->w;
slouken@1895
  1659
        full_rect.h = texture->h;
slouken@1895
  1660
        rect = &full_rect;
slouken@1895
  1661
    }
slouken@1895
  1662
slouken@1895
  1663
    return renderer->UpdateTexture(renderer, texture, rect, pixels, pitch);
slouken@1895
  1664
}
slouken@1895
  1665
slouken@1895
  1666
int
slouken@1895
  1667
SDL_LockTexture(SDL_TextureID textureID, const SDL_Rect * rect, int markDirty,
slouken@1895
  1668
                void **pixels, int *pitch)
slouken@1895
  1669
{
slouken@1895
  1670
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1671
    SDL_Renderer *renderer;
slouken@1895
  1672
    SDL_Rect full_rect;
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->LockTexture) {
slouken@1895
  1680
        return -1;
slouken@1895
  1681
    }
slouken@1895
  1682
slouken@1895
  1683
    if (!rect) {
slouken@1895
  1684
        full_rect.x = 0;
slouken@1895
  1685
        full_rect.y = 0;
slouken@1895
  1686
        full_rect.w = texture->w;
slouken@1895
  1687
        full_rect.h = texture->h;
slouken@1895
  1688
        rect = &full_rect;
slouken@1895
  1689
    }
slouken@1895
  1690
slouken@1895
  1691
    return renderer->LockTexture(renderer, texture, rect, markDirty, pixels,
slouken@1895
  1692
                                 pitch);
slouken@1895
  1693
}
slouken@1895
  1694
slouken@1895
  1695
void
slouken@1895
  1696
SDL_UnlockTexture(SDL_TextureID textureID)
slouken@1895
  1697
{
slouken@1895
  1698
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1699
    SDL_Renderer *renderer;
slouken@1895
  1700
slouken@1895
  1701
    if (!texture) {
slouken@1895
  1702
        return;
slouken@1895
  1703
    }
slouken@1895
  1704
slouken@1895
  1705
    renderer = texture->renderer;
slouken@1895
  1706
    if (!renderer->UnlockTexture) {
slouken@1895
  1707
        return;
slouken@1895
  1708
    }
slouken@1895
  1709
    renderer->UnlockTexture(renderer, texture);
slouken@1895
  1710
}
slouken@1895
  1711
slouken@1895
  1712
void
slouken@1895
  1713
SDL_DirtyTexture(SDL_TextureID textureID, int numrects,
slouken@1895
  1714
                 const SDL_Rect * rects)
slouken@1895
  1715
{
slouken@1895
  1716
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1717
    SDL_Renderer *renderer;
slouken@1895
  1718
slouken@1895
  1719
    if (!texture) {
slouken@1895
  1720
        return;
slouken@1895
  1721
    }
slouken@1895
  1722
slouken@1895
  1723
    renderer = texture->renderer;
slouken@1895
  1724
    if (!renderer->DirtyTexture) {
slouken@1895
  1725
        return;
slouken@1895
  1726
    }
slouken@1895
  1727
    renderer->DirtyTexture(renderer, texture, numrects, rects);
slouken@1895
  1728
}
slouken@1895
  1729
slouken@1895
  1730
void
slouken@1895
  1731
SDL_SelectRenderTexture(SDL_TextureID textureID)
slouken@1895
  1732
{
slouken@1895
  1733
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1734
    SDL_Renderer *renderer;
slouken@1895
  1735
slouken@1895
  1736
    if (!texture || texture->access != SDL_TextureAccess_Render) {
slouken@1895
  1737
        return;
slouken@1895
  1738
    }
slouken@1895
  1739
    renderer = texture->renderer;
slouken@1895
  1740
    if (!renderer->SelectRenderTexture) {
slouken@1895
  1741
        return;
slouken@1895
  1742
    }
slouken@1895
  1743
    renderer->SelectRenderTexture(renderer, texture);
slouken@1895
  1744
}
slouken@1895
  1745
slouken@1895
  1746
int
slouken@1895
  1747
SDL_RenderFill(const SDL_Rect * rect, Uint32 color)
slouken@1895
  1748
{
slouken@1895
  1749
    SDL_Renderer *renderer;
slouken@1895
  1750
    SDL_Window *window;
slouken@1895
  1751
    SDL_Rect real_rect;
slouken@1895
  1752
slouken@1895
  1753
    if (!_this) {
slouken@1895
  1754
        return -1;
slouken@1895
  1755
    }
slouken@1895
  1756
slouken@1895
  1757
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1758
    if (!renderer || !renderer->RenderFill) {
slouken@1895
  1759
        return -1;
slouken@1895
  1760
    }
slouken@1895
  1761
slouken@1895
  1762
    window = SDL_GetWindowFromID(renderer->window);
slouken@1895
  1763
    real_rect.x = 0;
slouken@1895
  1764
    real_rect.y = 0;
slouken@1895
  1765
    real_rect.w = window->w;
slouken@1895
  1766
    real_rect.h = window->h;
slouken@1895
  1767
    if (rect) {
slouken@1895
  1768
        if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
slouken@1895
  1769
            return 0;
slouken@1895
  1770
        }
slouken@1895
  1771
    }
slouken@1895
  1772
slouken@1897
  1773
    return renderer->RenderFill(renderer, &real_rect, color);
slouken@1895
  1774
}
slouken@1895
  1775
slouken@1895
  1776
int
slouken@1895
  1777
SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect * srcrect,
slouken@1895
  1778
               const SDL_Rect * dstrect, int blendMode, int scaleMode)
slouken@1895
  1779
{
slouken@1895
  1780
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1781
    SDL_Renderer *renderer;
slouken@1895
  1782
    SDL_Window *window;
slouken@1895
  1783
    SDL_Rect real_srcrect;
slouken@1895
  1784
    SDL_Rect real_dstrect;
slouken@1895
  1785
slouken@1895
  1786
    if (!texture || texture->renderer != SDL_CurrentDisplay.current_renderer) {
slouken@1895
  1787
        return -1;
slouken@1895
  1788
    }
slouken@1895
  1789
slouken@1895
  1790
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1791
    if (!renderer || !renderer->RenderCopy) {
slouken@1895
  1792
        return -1;
slouken@1895
  1793
    }
slouken@1895
  1794
slouken@1895
  1795
    window = SDL_GetWindowFromID(renderer->window);
slouken@1897
  1796
    if (srcrect) {
slouken@1897
  1797
        real_srcrect = *srcrect;
slouken@1897
  1798
    } else {
slouken@1897
  1799
        real_srcrect.x = 0;
slouken@1897
  1800
        real_srcrect.y = 0;
slouken@1897
  1801
        real_srcrect.w = texture->w;
slouken@1897
  1802
        real_srcrect.h = texture->h;
slouken@1895
  1803
    }
slouken@1897
  1804
    if (dstrect) {
slouken@1897
  1805
        real_dstrect = *dstrect;
slouken@1897
  1806
    } else {
slouken@1897
  1807
        real_dstrect.x = 0;
slouken@1897
  1808
        real_dstrect.y = 0;
slouken@1897
  1809
        real_dstrect.w = window->w;
slouken@1897
  1810
        real_dstrect.h = window->h;
slouken@1895
  1811
    }
slouken@1895
  1812
slouken@1897
  1813
    return renderer->RenderCopy(renderer, texture, &real_srcrect,
slouken@1897
  1814
                                &real_dstrect, blendMode, scaleMode);
slouken@1895
  1815
}
slouken@1895
  1816
slouken@1895
  1817
int
slouken@1895
  1818
SDL_RenderReadPixels(const SDL_Rect * rect, void *pixels, int pitch)
slouken@1895
  1819
{
slouken@1895
  1820
    SDL_Renderer *renderer;
slouken@1895
  1821
    SDL_Rect full_rect;
slouken@1895
  1822
slouken@1895
  1823
    if (!_this) {
slouken@1895
  1824
        return -1;
slouken@1895
  1825
    }
slouken@1895
  1826
slouken@1895
  1827
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1828
    if (!renderer || !renderer->RenderReadPixels) {
slouken@1895
  1829
        return -1;
slouken@1895
  1830
    }
slouken@1895
  1831
slouken@1895
  1832
    if (!rect) {
slouken@1895
  1833
        SDL_Window *window = SDL_GetWindowFromID(renderer->window);
slouken@1895
  1834
        full_rect.x = 0;
slouken@1895
  1835
        full_rect.y = 0;
slouken@1895
  1836
        full_rect.w = window->w;
slouken@1895
  1837
        full_rect.h = window->h;
slouken@1895
  1838
        rect = &full_rect;
slouken@1895
  1839
    }
slouken@1895
  1840
slouken@1895
  1841
    return renderer->RenderReadPixels(renderer, rect, pixels, pitch);
slouken@1895
  1842
}
slouken@1895
  1843
slouken@1895
  1844
int
slouken@1895
  1845
SDL_RenderWritePixels(const SDL_Rect * rect, const void *pixels, int pitch)
slouken@1895
  1846
{
slouken@1895
  1847
    SDL_Renderer *renderer;
slouken@1895
  1848
    SDL_Rect full_rect;
slouken@1895
  1849
slouken@1895
  1850
    if (!_this) {
slouken@1895
  1851
        return -1;
slouken@1895
  1852
    }
slouken@1895
  1853
slouken@1895
  1854
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1855
    if (!renderer || !renderer->RenderWritePixels) {
slouken@1895
  1856
        return -1;
slouken@1895
  1857
    }
slouken@1895
  1858
slouken@1895
  1859
    if (!rect) {
slouken@1895
  1860
        SDL_Window *window = SDL_GetWindowFromID(renderer->window);
slouken@1895
  1861
        full_rect.x = 0;
slouken@1895
  1862
        full_rect.y = 0;
slouken@1895
  1863
        full_rect.w = window->w;
slouken@1895
  1864
        full_rect.h = window->h;
slouken@1895
  1865
        rect = &full_rect;
slouken@1895
  1866
    }
slouken@1895
  1867
slouken@1895
  1868
    return renderer->RenderWritePixels(renderer, rect, pixels, pitch);
slouken@1895
  1869
}
slouken@1895
  1870
slouken@1895
  1871
void
slouken@1895
  1872
SDL_RenderPresent(void)
slouken@1895
  1873
{
slouken@1895
  1874
    SDL_Renderer *renderer;
slouken@1895
  1875
slouken@1895
  1876
    if (!_this) {
slouken@1895
  1877
        return;
slouken@1895
  1878
    }
slouken@1895
  1879
slouken@1895
  1880
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@1895
  1881
    if (!renderer || !renderer->RenderPresent) {
slouken@1895
  1882
        return;
slouken@1895
  1883
    }
slouken@1895
  1884
slouken@1897
  1885
    if (renderer->SelectRenderTexture) {
slouken@1897
  1886
        renderer->SelectRenderTexture(renderer, NULL);
slouken@1897
  1887
    }
slouken@1895
  1888
    renderer->RenderPresent(renderer);
slouken@1895
  1889
}
slouken@1895
  1890
slouken@1895
  1891
void
slouken@1895
  1892
SDL_DestroyTexture(SDL_TextureID textureID)
slouken@1895
  1893
{
slouken@1895
  1894
    int hash;
slouken@1895
  1895
    SDL_Texture *prev, *texture;
slouken@1895
  1896
    SDL_Renderer *renderer;
slouken@1895
  1897
slouken@1895
  1898
    if (!_this) {
slouken@1895
  1899
        return;
slouken@1895
  1900
    }
slouken@1895
  1901
slouken@1895
  1902
    /* Look up the texture in the hash table */
slouken@1895
  1903
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@1895
  1904
    prev = NULL;
slouken@1895
  1905
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@1895
  1906
         prev = texture, texture = texture->next) {
slouken@1895
  1907
        if (texture->id == textureID) {
slouken@1895
  1908
            break;
slouken@1895
  1909
        }
slouken@1895
  1910
    }
slouken@1895
  1911
    if (!texture) {
slouken@1895
  1912
        return;
slouken@1895
  1913
    }
slouken@1895
  1914
slouken@1895
  1915
    /* Unlink the texture from the list */
slouken@1895
  1916
    if (prev) {
slouken@1895
  1917
        prev->next = texture->next;
slouken@1895
  1918
    } else {
slouken@1895
  1919
        SDL_CurrentDisplay.textures[hash] = texture->next;
slouken@1895
  1920
    }
slouken@1895
  1921
slouken@1895
  1922
    /* Free the texture */
slouken@1895
  1923
    renderer = texture->renderer;
slouken@1895
  1924
    renderer->DestroyTexture(renderer, texture);
slouken@1895
  1925
    SDL_free(texture);
slouken@1895
  1926
}
slouken@1895
  1927
slouken@1895
  1928
void
slouken@1895
  1929
SDL_DestroyRenderer(SDL_WindowID windowID)
slouken@1895
  1930
{
slouken@1895
  1931
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1932
    SDL_Renderer *renderer;
slouken@1895
  1933
    int i;
slouken@1895
  1934
slouken@1895
  1935
    if (!window) {
slouken@1895
  1936
        return;
slouken@1895
  1937
    }
slouken@1895
  1938
slouken@1895
  1939
    renderer = window->renderer;
slouken@1895
  1940
    if (!renderer) {
slouken@1895
  1941
        return;
slouken@1895
  1942
    }
slouken@1895
  1943
slouken@1895
  1944
    /* Free existing textures for this renderer */
slouken@1895
  1945
    for (i = 0; i < SDL_arraysize(SDL_CurrentDisplay.textures); ++i) {
slouken@1895
  1946
        SDL_Texture *texture;
slouken@1895
  1947
        SDL_Texture *prev = NULL;
slouken@1895
  1948
        SDL_Texture *next;
slouken@1895
  1949
        for (texture = SDL_CurrentDisplay.textures[i]; texture;
slouken@1895
  1950
             texture = next) {
slouken@1895
  1951
            next = texture->next;
slouken@1895
  1952
            if (texture->renderer == renderer) {
slouken@1895
  1953
                if (prev) {
slouken@1895
  1954
                    prev->next = next;
slouken@1895
  1955
                } else {
slouken@1895
  1956
                    SDL_CurrentDisplay.textures[i] = next;
slouken@1895
  1957
                }
slouken@1895
  1958
                renderer->DestroyTexture(renderer, texture);
slouken@1895
  1959
                SDL_free(texture);
slouken@1895
  1960
            } else {
slouken@1895
  1961
                prev = texture;
slouken@1895
  1962
            }
slouken@1895
  1963
        }
slouken@1895
  1964
    }
slouken@1895
  1965
slouken@1895
  1966
    /* Free the renderer instance */
slouken@1895
  1967
    renderer->DestroyRenderer(renderer);
slouken@1895
  1968
slouken@1895
  1969
    /* Clear references */
slouken@1895
  1970
    window->renderer = NULL;
slouken@1895
  1971
    if (SDL_CurrentDisplay.current_renderer == renderer) {
slouken@1895
  1972
        SDL_CurrentDisplay.current_renderer = NULL;
slouken@1895
  1973
    }
slouken@1895
  1974
}
slouken@1895
  1975
slouken@1895
  1976
void
slouken@1895
  1977
SDL_VideoQuit(void)
slouken@1895
  1978
{
slouken@1895
  1979
    int i, j;
slouken@1895
  1980
slouken@1895
  1981
    if (!_this) {
slouken@1895
  1982
        return;
slouken@1895
  1983
    }
slouken@1895
  1984
slouken@1895
  1985
    /* Halt event processing before doing anything else */
slouken@1895
  1986
    SDL_StopEventLoop();
slouken@1895
  1987
slouken@1895
  1988
    /* Clean up the system video */
slouken@1895
  1989
    for (i = _this->num_displays; i--;) {
slouken@1895
  1990
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  1991
        for (j = display->num_windows; j--;) {
slouken@1895
  1992
            SDL_DestroyWindow(display->windows[i].id);
slouken@1895
  1993
        }
slouken@1895
  1994
        if (display->windows) {
slouken@1895
  1995
            SDL_free(display->windows);
slouken@1895
  1996
            display->windows = NULL;
slouken@1895
  1997
        }
slouken@1895
  1998
        display->num_windows = 0;
slouken@1895
  1999
    }
slouken@1895
  2000
    _this->VideoQuit(_this);
slouken@1895
  2001
slouken@1895
  2002
    for (i = _this->num_displays; i--;) {
slouken@1895
  2003
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@1895
  2004
        for (j = display->num_display_modes; j--;) {
slouken@1895
  2005
            if (display->display_modes[j].driverdata) {
slouken@1895
  2006
                SDL_free(display->display_modes[j].driverdata);
slouken@1895
  2007
                display->display_modes[j].driverdata = NULL;
slouken@1895
  2008
            }
slouken@1895
  2009
        }
slouken@1895
  2010
        if (display->display_modes) {
slouken@1895
  2011
            SDL_free(display->display_modes);
slouken@1895
  2012
            display->display_modes = NULL;
slouken@1895
  2013
        }
slouken@1895
  2014
        if (display->desktop_mode.driverdata) {
slouken@1895
  2015
            SDL_free(display->desktop_mode.driverdata);
slouken@1895
  2016
            display->desktop_mode.driverdata = NULL;
slouken@1895
  2017
        }
slouken@1895
  2018
        if (display->palette) {
slouken@1895
  2019
            SDL_FreePalette(display->palette);
slouken@1895
  2020
            display->palette = NULL;
slouken@1895
  2021
        }
slouken@1895
  2022
        if (display->gamma) {
slouken@1895
  2023
            SDL_free(display->gamma);
slouken@1895
  2024
        }
slouken@1895
  2025
        if (display->driverdata) {
slouken@1895
  2026
            SDL_free(display->driverdata);
slouken@1895
  2027
        }
slouken@1895
  2028
    }
slouken@1895
  2029
    if (_this->displays) {
slouken@1895
  2030
        SDL_free(_this->displays);
slouken@1895
  2031
        _this->displays = NULL;
slouken@1895
  2032
    }
slouken@1895
  2033
    _this->free(_this);
slouken@1895
  2034
    _this = NULL;
slouken@0
  2035
}
slouken@0
  2036
slouken@0
  2037
/* Load the GL driver library */
slouken@1895
  2038
int
slouken@1895
  2039
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2040
{
slouken@1895
  2041
    int retval;
slouken@0
  2042
slouken@1895
  2043
    retval = -1;
slouken@1895
  2044
    if (_this == NULL) {
slouken@1895
  2045
        SDL_SetError("Video subsystem has not been initialized");
slouken@1895
  2046
    } else {
slouken@1895
  2047
        if (_this->GL_LoadLibrary) {
slouken@1895
  2048
            retval = _this->GL_LoadLibrary(_this, path);
slouken@1895
  2049
        } else {
slouken@1895
  2050
            SDL_SetError("No dynamic GL support in video driver");
slouken@1895
  2051
        }
slouken@1895
  2052
    }
slouken@1895
  2053
    return (retval);
slouken@0
  2054
}
slouken@0
  2055
slouken@1895
  2056
void *
slouken@1895
  2057
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2058
{
slouken@1895
  2059
    void *func;
slouken@0
  2060
slouken@1895
  2061
    func = NULL;
slouken@1895
  2062
    if (_this->GL_GetProcAddress) {
slouken@1895
  2063
        if (_this->gl_config.driver_loaded) {
slouken@1895
  2064
            func = _this->GL_GetProcAddress(_this, proc);
slouken@1895
  2065
        } else {
slouken@1895
  2066
            SDL_SetError("No GL driver has been loaded");
slouken@1895
  2067
        }
slouken@1895
  2068
    } else {
slouken@1895
  2069
        SDL_SetError("No dynamic GL support in video driver");
slouken@1895
  2070
    }
slouken@1895
  2071
    return func;
slouken@0
  2072
}
slouken@0
  2073
slouken@0
  2074
/* Set the specified GL attribute for setting up a GL video mode */
slouken@1895
  2075
int
slouken@1895
  2076
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2077
{
slouken@1895
  2078
    int retval;
slouken@0
  2079
slouken@1895
  2080
    retval = 0;
slouken@1895
  2081
    switch (attr) {
slouken@1895
  2082
    case SDL_GL_RED_SIZE:
slouken@1895
  2083
        _this->gl_config.red_size = value;
slouken@1895
  2084
        break;
slouken@1895
  2085
    case SDL_GL_GREEN_SIZE:
slouken@1895
  2086
        _this->gl_config.green_size = value;
slouken@1895
  2087
        break;
slouken@1895
  2088
    case SDL_GL_BLUE_SIZE:
slouken@1895
  2089
        _this->gl_config.blue_size = value;
slouken@1895
  2090
        break;
slouken@1895
  2091
    case SDL_GL_ALPHA_SIZE:
slouken@1895
  2092
        _this->gl_config.alpha_size = value;
slouken@1895
  2093
        break;
slouken@1895
  2094
    case SDL_GL_DOUBLEBUFFER:
slouken@1895
  2095
        _this->gl_config.double_buffer = value;
slouken@1895
  2096
        break;
slouken@1895
  2097
    case SDL_GL_BUFFER_SIZE:
slouken@1895
  2098
        _this->gl_config.buffer_size = value;
slouken@1895
  2099
        break;
slouken@1895
  2100
    case SDL_GL_DEPTH_SIZE:
slouken@1895
  2101
        _this->gl_config.depth_size = value;
slouken@1895
  2102
        break;
slouken@1895
  2103
    case SDL_GL_STENCIL_SIZE:
slouken@1895
  2104
        _this->gl_config.stencil_size = value;
slouken@1895
  2105
        break;
slouken@1895
  2106
    case SDL_GL_ACCUM_RED_SIZE:
slouken@1895
  2107
        _this->gl_config.accum_red_size = value;
slouken@1895
  2108
        break;
slouken@1895
  2109
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@1895
  2110
        _this->gl_config.accum_green_size = value;
slouken@1895
  2111
        break;
slouken@1895
  2112
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@1895
  2113
        _this->gl_config.accum_blue_size = value;
slouken@1895
  2114
        break;
slouken@1895
  2115
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@1895
  2116
        _this->gl_config.accum_alpha_size = value;
slouken@1895
  2117
        break;
slouken@1895
  2118
    case SDL_GL_STEREO:
slouken@1895
  2119
        _this->gl_config.stereo = value;
slouken@1895
  2120
        break;
slouken@1895
  2121
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@1895
  2122
        _this->gl_config.multisamplebuffers = value;
slouken@1895
  2123
        break;
slouken@1895
  2124
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@1895
  2125
        _this->gl_config.multisamplesamples = value;
slouken@1895
  2126
        break;
slouken@1895
  2127
    case SDL_GL_ACCELERATED_VISUAL:
slouken@1895
  2128
        _this->gl_config.accelerated = value;
slouken@1895
  2129
        break;
slouken@1895
  2130
    default:
slouken@1895
  2131
        SDL_SetError("Unknown OpenGL attribute");
slouken@1895
  2132
        retval = -1;
slouken@1895
  2133
        break;
slouken@1895
  2134
    }
slouken@1895
  2135
    return (retval);
slouken@0
  2136
}
slouken@0
  2137
slouken@0
  2138
/* Retrieve an attribute value from the windowing system. */
slouken@1895
  2139
int
slouken@1895
  2140
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2141
{
slouken@1895
  2142
    int retval = -1;
slouken@0
  2143
slouken@1895
  2144
    if (_this->GL_GetAttribute) {
slouken@1895
  2145
        retval = _this->GL_GetAttribute(_this, attr, value);
slouken@1895
  2146
    } else {
slouken@1895
  2147
        *value = 0;
slouken@1895
  2148
        SDL_SetError("GL_GetAttribute not supported");
slouken@1895
  2149
    }
slouken@1895
  2150
    return retval;
slouken@0
  2151
}
slouken@0
  2152
slouken@0
  2153
/* Perform a GL buffer swap on the current GL context */
slouken@1895
  2154
void
slouken@1895
  2155
SDL_GL_SwapBuffers(void)
slouken@0
  2156
{
slouken@1895
  2157
    // FIXME: Track the current window context - do we provide N contexts, and match them to M windows, or is there a one-to-one mapping?
slouken@1895
  2158
    _this->GL_SwapBuffers(_this);
slouken@0
  2159
}
slouken@0
  2160
slouken@1895
  2161
#if 0                           // FIXME
slouken@541
  2162
/* Utility function used by SDL_WM_SetIcon();
slouken@541
  2163
 * flags & 1 for color key, flags & 2 for alpha channel. */
slouken@1895
  2164
static void
slouken@1895
  2165
CreateMaskFromColorKeyOrAlpha(SDL_Surface * icon, Uint8 * mask, int flags)
slouken@0
  2166
{
slouken@1895
  2167
    int x, y;
slouken@1895
  2168
    Uint32 colorkey;
slouken@0
  2169
#define SET_MASKBIT(icon, x, y, mask) \
slouken@0
  2170
	mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8)))
slouken@0
  2171
slouken@1895
  2172
    colorkey = icon->format->colorkey;
slouken@1895
  2173
    switch (icon->format->BytesPerPixel) {
slouken@1895
  2174
    case 1:
slouken@1895
  2175
        {
slouken@1895
  2176
            Uint8 *pixels;
slouken@1895
  2177
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2178
                pixels = (Uint8 *) icon->pixels + y * icon->pitch;
slouken@1895
  2179
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2180
                    if (*pixels++ == colorkey) {
slouken@1895
  2181
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2182
                    }
slouken@1895
  2183
                }
slouken@1895
  2184
            }
slouken@1895
  2185
        }
slouken@1895
  2186
        break;
slouken@0
  2187
slouken@1895
  2188
    case 2:
slouken@1895
  2189
        {
slouken@1895
  2190
            Uint16 *pixels;
slouken@1895
  2191
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2192
                pixels = (Uint16 *) icon->pixels + y * icon->pitch / 2;
slouken@1895
  2193
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2194
                    if ((flags & 1) && *pixels == colorkey) {
slouken@1895
  2195
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2196
                    } else if ((flags & 2)
slouken@1895
  2197
                               && (*pixels & icon->format->Amask) == 0) {
slouken@1895
  2198
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2199
                    }
slouken@1895
  2200
                    pixels++;
slouken@1895
  2201
                }
slouken@1895
  2202
            }
slouken@1895
  2203
        }
slouken@1895
  2204
        break;
slouken@0
  2205
slouken@1895
  2206
    case 4:
slouken@1895
  2207
        {
slouken@1895
  2208
            Uint32 *pixels;
slouken@1895
  2209
            for (y = 0; y < icon->h; ++y) {
slouken@1895
  2210
                pixels = (Uint32 *) icon->pixels + y * icon->pitch / 4;
slouken@1895
  2211
                for (x = 0; x < icon->w; ++x) {
slouken@1895
  2212
                    if ((flags & 1) && *pixels == colorkey) {
slouken@1895
  2213
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2214
                    } else if ((flags & 2)
slouken@1895
  2215
                               && (*pixels & icon->format->Amask) == 0) {
slouken@1895
  2216
                        SET_MASKBIT(icon, x, y, mask);
slouken@1895
  2217
                    }
slouken@1895
  2218
                    pixels++;
slouken@1895
  2219
                }
slouken@1895
  2220
            }
slouken@1895
  2221
        }
slouken@1895
  2222
        break;
slouken@1895
  2223
    }
slouken@0
  2224
}
slouken@0
  2225
slouken@0
  2226
/*
slouken@0
  2227
 * Sets the window manager icon for the display window.
slouken@0
  2228
 */
slouken@1895
  2229
void
slouken@1895
  2230
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
slouken@0
  2231
{
slouken@1895
  2232
    if (icon && _this->SetIcon) {
slouken@1895
  2233
        /* Generate a mask if necessary, and create the icon! */
slouken@1895
  2234
        if (mask == NULL) {
slouken@1895
  2235
            int mask_len = icon->h * (icon->w + 7) / 8;
slouken@1895
  2236
            int flags = 0;
slouken@1895
  2237
            mask = (Uint8 *) SDL_malloc(mask_len);
slouken@1895
  2238
            if (mask == NULL) {
slouken@1895
  2239
                return;
slouken@1895
  2240
            }
slouken@1895
  2241
            SDL_memset(mask, ~0, mask_len);
slouken@1895
  2242
            if (icon->flags & SDL_SRCCOLORKEY)
slouken@1895
  2243
                flags |= 1;
slouken@1895
  2244
            if (icon->flags & SDL_SRCALPHA)
slouken@1895
  2245
                flags |= 2;
slouken@1895
  2246
            if (flags) {
slouken@1895
  2247
                CreateMaskFromColorKeyOrAlpha(icon, mask, flags);
slouken@1895
  2248
            }
slouken@1895
  2249
            _this->SetIcon(_this, icon, mask);
slouken@1895
  2250
            SDL_free(mask);
slouken@1895
  2251
        } else {
slouken@1895
  2252
            _this->SetIcon(_this, icon, mask);
slouken@1895
  2253
        }
slouken@1895
  2254
    }
slouken@1895
  2255
}
slouken@1895
  2256
#endif
slouken@0
  2257
slouken@1895
  2258
SDL_bool
slouken@1895
  2259
SDL_GetWindowWMInfo(SDL_WindowID windowID, struct SDL_SysWMinfo *info)
slouken@1895
  2260
{
slouken@1895
  2261
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  2262
slouken@1895
  2263
    if (!window || !_this->GetWindowWMInfo) {
slouken@1895
  2264
        return SDL_FALSE;
slouken@1895
  2265
    }
slouken@1895
  2266
    return (_this->GetWindowWMInfo(_this, window, info));
slouken@0
  2267
}
slouken@0
  2268
slouken@1895
  2269
/* vi: set ts=4 sw=4 expandtab: */