src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Mon, 08 Dec 2008 00:27:32 +0000
changeset 2859 99210400e8b9
parent 2849 523b10db69f8
child 2860 6ce28e5287e9
permissions -rw-r--r--
Updated copyright date
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2009 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#include "SDL_config.h"
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/* The high-level video driver subsystem */
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#include "SDL.h"
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#include "SDL_sysvideo.h"
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#include "SDL_blit.h"
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#include "SDL_pixels_c.h"
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#include "SDL_renderer_gl.h"
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#include "SDL_renderer_gles.h"
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#include "SDL_renderer_sw.h"
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#include "../events/SDL_sysevents.h"
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#include "../events/SDL_events_c.h"
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#if SDL_VIDEO_OPENGL_ES
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#include "SDL_opengles.h"
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#endif /* SDL_VIDEO_OPENGL_ES */
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#if SDL_VIDEO_OPENGL
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#include "SDL_opengl.h"
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/* On Windows, windows.h defines CreateWindow */
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#ifdef CreateWindow
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#undef CreateWindow
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#endif
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#endif /* SDL_VIDEO_OPENGL */
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/* Available video drivers */
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static VideoBootStrap *bootstrap[] = {
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#if SDL_VIDEO_DRIVER_COCOA
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    &COCOA_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_X11
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    &X11_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_NANOX
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    &NX_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_IPOD
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    &iPod_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_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_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_PHOTON
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    &ph_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_EPOC
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    &EPOC_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_XBIOS
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    &XBIOS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_GEM
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    &GEM_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DC
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    &DC_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_RISCOS
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    &RISCOS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_OS2FS
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    &OS2FSLib_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_NDS
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    &NDS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_UIKIT
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    &UIKIT_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DUMMY
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    &DUMMY_bootstrap,
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#endif
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    NULL
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};
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static SDL_VideoDevice *_this = NULL;
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/* Various local functions */
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int SDL_VideoInit(const char *driver_name, Uint32 flags);
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void SDL_VideoQuit(void);
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static int
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cmpmodes(const void *A, const void *B)
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{
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    SDL_DisplayMode a = *(const SDL_DisplayMode *) A;
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    SDL_DisplayMode b = *(const SDL_DisplayMode *) B;
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    if (a.w != b.w) {
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        return b.w - a.w;
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    }
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    if (a.h != b.h) {
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        return b.h - a.h;
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    }
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    if (SDL_BITSPERPIXEL(a.format) != SDL_BITSPERPIXEL(b.format)) {
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        return SDL_BITSPERPIXEL(b.format) - SDL_BITSPERPIXEL(a.format);
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    }
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    if (a.refresh_rate != b.refresh_rate) {
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        return b.refresh_rate - a.refresh_rate;
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    }
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    return 0;
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}
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static void
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SDL_UninitializedVideo()
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{
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    SDL_SetError("Video subsystem has not been initialized");
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}
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int
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SDL_GetNumVideoDrivers(void)
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{
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    return SDL_arraysize(bootstrap) - 1;
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}
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const char *
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SDL_GetVideoDriver(int index)
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{
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    if (index >= 0 && index < SDL_GetNumVideoDrivers()) {
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        return bootstrap[index]->name;
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    }
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    return NULL;
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}
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/*
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 * Initialize the video and event subsystems -- determine native pixel format
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 */
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int
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SDL_VideoInit(const char *driver_name, Uint32 flags)
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{
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    SDL_VideoDevice *video;
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    int index;
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    int i;
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    /* Toggle the event thread flags, based on OS requirements */
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#if defined(MUST_THREAD_EVENTS)
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    flags |= SDL_INIT_EVENTTHREAD;
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#elif defined(CANT_THREAD_EVENTS)
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    if ((flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD) {
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        SDL_SetError("OS doesn't support threaded events");
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        return -1;
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    }
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#endif
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    /* Start the event loop */
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    if (SDL_StartEventLoop(flags) < 0) {
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        return -1;
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    }
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    /* Check to make sure we don't overwrite '_this' */
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    if (_this != NULL) {
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        SDL_VideoQuit();
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    }
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    /* Select the proper video driver */
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    index = 0;
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    video = NULL;
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    if (driver_name == NULL) {
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        driver_name = SDL_getenv("SDL_VIDEODRIVER");
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    }
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    if (driver_name != NULL) {
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        for (i = 0; bootstrap[i]; ++i) {
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            if (SDL_strcasecmp(bootstrap[i]->name, driver_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.retained_backing = 1;
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    _this->gl_config.accelerated = -1;  /* not known, don't set */
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    /* Initialize the video subsystem */
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    if (_this->VideoInit(_this) < 0) {
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        SDL_VideoQuit();
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        return -1;
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    }
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    /* Make sure some displays were added */
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    if (_this->num_displays == 0) {
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        SDL_SetError("The video driver did not add any displays");
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        SDL_VideoQuit();
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        return (-1);
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    }
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    /* The software renderer is always available */
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    for (i = 0; i < _this->num_displays; ++i) {
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#if SDL_VIDEO_RENDER_OGL
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        SDL_AddRenderDriver(i, &GL_RenderDriver);
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#endif
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#if SDL_VIDEO_RENDER_OGL_ES
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        SDL_AddRenderDriver(i, &GL_ES_RenderDriver);
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#endif
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        if (_this->displays[i].num_render_drivers > 0) {
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            SDL_AddRenderDriver(i, &SW_RenderDriver);
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        }
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    }
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    /* We're ready to go! */
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    return 0;
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}
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const char *
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SDL_GetCurrentVideoDriver()
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{
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    if (!_this) {
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        SDL_UninitializedVideo();
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        return NULL;
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    }
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    return _this->name;
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}
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SDL_VideoDevice *
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SDL_GetVideoDevice()
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{
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    return _this;
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}
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int
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SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode)
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{
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    SDL_VideoDisplay display;
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    SDL_zero(display);
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    if (desktop_mode) {
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        display.desktop_mode = *desktop_mode;
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    }
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    display.current_mode = display.desktop_mode;
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    return SDL_AddVideoDisplay(&display);
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}
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int
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SDL_AddVideoDisplay(const SDL_VideoDisplay * display)
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{
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    SDL_VideoDisplay *displays;
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    int index = -1;
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    displays =
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        SDL_realloc(_this->displays,
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                    (_this->num_displays + 1) * sizeof(*displays));
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    if (displays) {
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        index = _this->num_displays++;
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        displays[index] = *display;
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        displays[index].device = _this;
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        _this->displays = displays;
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    } else {
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        SDL_OutOfMemory();
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    }
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    return index;
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}
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int
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SDL_GetNumVideoDisplays(void)
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{
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    if (!_this) {
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        SDL_UninitializedVideo();
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        return 0;
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    }
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    return _this->num_displays;
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}
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int
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SDL_SelectVideoDisplay(int index)
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{
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    if (!_this) {
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        SDL_UninitializedVideo();
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        return (-1);
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    }
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    if (index < 0 || 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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    return 0;
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}
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int
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SDL_GetCurrentVideoDisplay(void)
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{
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    if (!_this) {
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        SDL_UninitializedVideo();
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        return (-1);
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    }
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    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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   386
        }
slouken@2753
   387
    }
slouken@1895
   388
slouken@2753
   389
    /* Go ahead and add the new mode */
slouken@2753
   390
    if (nmodes == display->max_display_modes) {
slouken@2753
   391
        modes =
slouken@2753
   392
            SDL_realloc(modes,
slouken@2753
   393
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@2753
   394
        if (!modes) {
slouken@2753
   395
            return SDL_FALSE;
slouken@2753
   396
        }
slouken@2753
   397
        display->display_modes = modes;
slouken@2753
   398
        display->max_display_modes += 32;
slouken@2753
   399
    }
slouken@2753
   400
    modes[nmodes] = *mode;
slouken@2753
   401
    display->num_display_modes++;
slouken@1895
   402
slouken@2753
   403
    return SDL_TRUE;
slouken@0
   404
}
slouken@0
   405
slouken@1895
   406
int
slouken@1895
   407
SDL_GetNumDisplayModes()
slouken@0
   408
{
slouken@2753
   409
    if (_this) {
slouken@2753
   410
        SDL_VideoDisplay *display = &SDL_CurrentDisplay;
slouken@2753
   411
        if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@2753
   412
            _this->GetDisplayModes(_this);
slouken@2753
   413
            SDL_qsort(display->display_modes, display->num_display_modes,
slouken@2753
   414
                      sizeof(SDL_DisplayMode), cmpmodes);
slouken@2753
   415
        }
slouken@2753
   416
        return display->num_display_modes;
slouken@2753
   417
    }
slouken@2753
   418
    return 0;
slouken@0
   419
}
slouken@0
   420
slouken@1967
   421
int
slouken@1967
   422
SDL_GetDisplayMode(int index, SDL_DisplayMode * mode)
slouken@0
   423
{
slouken@2753
   424
    if (index < 0 || index >= SDL_GetNumDisplayModes()) {
slouken@2753
   425
        SDL_SetError("index must be in the range of 0 - %d",
slouken@2753
   426
                     SDL_GetNumDisplayModes() - 1);
slouken@2753
   427
        return -1;
slouken@2753
   428
    }
slouken@2753
   429
    if (mode) {
slouken@2753
   430
        *mode = SDL_CurrentDisplay.display_modes[index];
slouken@2753
   431
    }
slouken@2753
   432
    return 0;
slouken@0
   433
}
slouken@0
   434
slouken@1967
   435
int
slouken@1967
   436
SDL_GetDesktopDisplayMode(SDL_DisplayMode * mode)
slouken@0
   437
{
slouken@2753
   438
    if (!_this) {
slouken@2753
   439
        SDL_UninitializedVideo();
slouken@2753
   440
        return -1;
slouken@2753
   441
    }
slouken@2753
   442
    if (mode) {
slouken@2753
   443
        *mode = SDL_CurrentDisplay.desktop_mode;
slouken@2753
   444
    }
slouken@2753
   445
    return 0;
slouken@0
   446
}
slouken@0
   447
slouken@1967
   448
int
slouken@1967
   449
SDL_GetCurrentDisplayMode(SDL_DisplayMode * mode)
slouken@0
   450
{
slouken@2753
   451
    if (!_this) {
slouken@2753
   452
        SDL_UninitializedVideo();
slouken@2753
   453
        return -1;
slouken@2753
   454
    }
slouken@2753
   455
    if (mode) {
slouken@2753
   456
        *mode = SDL_CurrentDisplay.current_mode;
slouken@2753
   457
    }
slouken@2753
   458
    return 0;
slouken@0
   459
}
slouken@0
   460
slouken@1895
   461
SDL_DisplayMode *
slouken@1895
   462
SDL_GetClosestDisplayMode(const SDL_DisplayMode * mode,
slouken@2753
   463
                          SDL_DisplayMode * closest)
slouken@0
   464
{
slouken@2753
   465
    Uint32 target_format;
slouken@2753
   466
    int target_refresh_rate;
slouken@2753
   467
    int i;
slouken@2753
   468
    SDL_DisplayMode *current, *match;
slouken@0
   469
slouken@2753
   470
    if (!_this || !mode || !closest) {
slouken@2753
   471
        return NULL;
slouken@2753
   472
    }
slouken@2753
   473
    /* Default to the desktop format */
slouken@2753
   474
    if (mode->format) {
slouken@2753
   475
        target_format = mode->format;
slouken@2753
   476
    } else {
slouken@2753
   477
        target_format = SDL_CurrentDisplay.desktop_mode.format;
slouken@2753
   478
    }
slouken@0
   479
slouken@2753
   480
    /* Default to the desktop refresh rate */
slouken@2753
   481
    if (mode->refresh_rate) {
slouken@2753
   482
        target_refresh_rate = mode->refresh_rate;
slouken@2753
   483
    } else {
slouken@2753
   484
        target_refresh_rate = SDL_CurrentDisplay.desktop_mode.refresh_rate;
slouken@2753
   485
    }
slouken@0
   486
slouken@2753
   487
    match = NULL;
slouken@2753
   488
    for (i = 0; i < SDL_GetNumDisplayModes(); ++i) {
slouken@2753
   489
        current = &SDL_CurrentDisplay.display_modes[i];
slouken@0
   490
slouken@2789
   491
        if (current->w && (current->w < mode->w)) {
slouken@2753
   492
            /* Out of sorted modes large enough here */
slouken@2753
   493
            break;
slouken@2753
   494
        }
slouken@2789
   495
        if (current->h && (current->h < mode->h)) {
slouken@2789
   496
            if (current->w && (current->w == mode->w)) {
slouken@2789
   497
                /* Out of sorted modes large enough here */
slouken@2789
   498
                break;
slouken@2789
   499
            }
slouken@2789
   500
            /* Wider, but not tall enough, due to a different
slouken@2789
   501
               aspect ratio. This mode must be skipped, but closer
slouken@2789
   502
               modes may still follow. */
slouken@2789
   503
            continue;
slouken@2789
   504
        }
slouken@2753
   505
        if (!match || current->w < match->w || current->h < match->h) {
slouken@2753
   506
            match = current;
slouken@2753
   507
            continue;
slouken@2753
   508
        }
slouken@2753
   509
        if (current->format != match->format) {
slouken@2753
   510
            /* Sorted highest depth to lowest */
slouken@2753
   511
            if (current->format == target_format ||
slouken@2753
   512
                (SDL_BITSPERPIXEL(current->format) >=
slouken@2753
   513
                 SDL_BITSPERPIXEL(target_format)
slouken@2753
   514
                 && SDL_PIXELTYPE(current->format) ==
slouken@2753
   515
                 SDL_PIXELTYPE(target_format))) {
slouken@2753
   516
                match = current;
slouken@2753
   517
            }
slouken@2753
   518
            continue;
slouken@2753
   519
        }
slouken@2753
   520
        if (current->refresh_rate != match->refresh_rate) {
slouken@2753
   521
            /* Sorted highest refresh to lowest */
slouken@2753
   522
            if (current->refresh_rate >= target_refresh_rate) {
slouken@2753
   523
                match = current;
slouken@2753
   524
            }
slouken@2753
   525
        }
slouken@2753
   526
    }
slouken@2753
   527
    if (match) {
slouken@2753
   528
        if (match->format) {
slouken@2753
   529
            closest->format = match->format;
slouken@2753
   530
        } else {
slouken@2753
   531
            closest->format = mode->format;
slouken@2753
   532
        }
slouken@2753
   533
        if (match->w && match->h) {
slouken@2753
   534
            closest->w = match->w;
slouken@2753
   535
            closest->h = match->h;
slouken@2753
   536
        } else {
slouken@2753
   537
            closest->w = mode->w;
slouken@2753
   538
            closest->h = mode->h;
slouken@2753
   539
        }
slouken@2753
   540
        if (match->refresh_rate) {
slouken@2753
   541
            closest->refresh_rate = match->refresh_rate;
slouken@2753
   542
        } else {
slouken@2753
   543
            closest->refresh_rate = mode->refresh_rate;
slouken@2753
   544
        }
slouken@2753
   545
        closest->driverdata = match->driverdata;
slouken@1895
   546
slouken@2753
   547
        /*
slouken@2753
   548
         * Pick some reasonable defaults if the app and driver don't
slouken@2753
   549
         * care
slouken@2753
   550
         */
slouken@2753
   551
        if (!closest->format) {
slouken@2753
   552
            closest->format = SDL_PIXELFORMAT_RGB888;
slouken@2753
   553
        }
slouken@2753
   554
        if (!closest->w) {
slouken@2753
   555
            closest->w = 640;
slouken@2753
   556
        }
slouken@2753
   557
        if (!closest->h) {
slouken@2753
   558
            closest->h = 480;
slouken@2753
   559
        }
slouken@2753
   560
        return closest;
slouken@2753
   561
    }
slouken@2753
   562
    return NULL;
slouken@0
   563
}
slouken@0
   564
slouken@1895
   565
int
slouken@1895
   566
SDL_SetDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   567
{
slouken@2753
   568
    SDL_VideoDisplay *display;
slouken@2753
   569
    SDL_DisplayMode display_mode;
slouken@2753
   570
    SDL_DisplayMode current_mode;
slouken@2753
   571
    int i, ncolors;
slouken@0
   572
slouken@2753
   573
    if (!_this) {
slouken@2753
   574
        SDL_UninitializedVideo();
slouken@2753
   575
        return -1;
slouken@2753
   576
    }
slouken@2753
   577
    display = &SDL_CurrentDisplay;
slouken@2753
   578
    if (!mode) {
slouken@2753
   579
        mode = &display->desktop_mode;
slouken@2753
   580
    }
slouken@2753
   581
    display_mode = *mode;
slouken@0
   582
slouken@2753
   583
    /* Default to the current mode */
slouken@2753
   584
    if (!display_mode.format) {
slouken@2753
   585
        display_mode.format = display->current_mode.format;
slouken@2753
   586
    }
slouken@2753
   587
    if (!display_mode.w) {
slouken@2753
   588
        display_mode.w = display->current_mode.w;
slouken@2753
   589
    }
slouken@2753
   590
    if (!display_mode.h) {
slouken@2753
   591
        display_mode.h = display->current_mode.h;
slouken@2753
   592
    }
slouken@2753
   593
    if (!display_mode.refresh_rate) {
slouken@2753
   594
        display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@2753
   595
    }
slouken@2753
   596
    /* Get a good video mode, the closest one possible */
slouken@2753
   597
    if (!SDL_GetClosestDisplayMode(&display_mode, &display_mode)) {
slouken@2753
   598
        SDL_SetError("No video mode large enough for %dx%d",
slouken@2753
   599
                     display_mode.w, display_mode.h);
slouken@2753
   600
        return -1;
slouken@2753
   601
    }
slouken@2753
   602
    /* See if there's anything left to do */
slouken@2753
   603
    SDL_GetCurrentDisplayMode(&current_mode);
slouken@2753
   604
    if (SDL_memcmp(&display_mode, &current_mode, sizeof(display_mode)) == 0) {
slouken@2753
   605
        return 0;
slouken@2753
   606
    }
slouken@2753
   607
    /* Actually change the display mode */
slouken@2753
   608
    if (_this->SetDisplayMode(_this, &display_mode) < 0) {
slouken@2753
   609
        return -1;
slouken@2753
   610
    }
slouken@2753
   611
    display->current_mode = display_mode;
slouken@1895
   612
slouken@2753
   613
    /* Set up a palette, if necessary */
slouken@2753
   614
    if (SDL_ISPIXELFORMAT_INDEXED(display_mode.format)) {
slouken@2753
   615
        ncolors = (1 << SDL_BITSPERPIXEL(display_mode.format));
slouken@2753
   616
    } else {
slouken@2753
   617
        ncolors = 0;
slouken@2753
   618
    }
slouken@2753
   619
    if ((!ncolors && display->palette) || (ncolors && !display->palette)
slouken@2753
   620
        || (ncolors && ncolors != display->palette->ncolors)) {
slouken@2753
   621
        if (display->palette) {
slouken@2753
   622
            SDL_FreePalette(display->palette);
slouken@2753
   623
            display->palette = NULL;
slouken@2753
   624
        }
slouken@2753
   625
        if (ncolors) {
slouken@2753
   626
            display->palette = SDL_AllocPalette(ncolors);
slouken@2753
   627
            if (!display->palette) {
slouken@2753
   628
                return -1;
slouken@2753
   629
            }
slouken@2753
   630
            SDL_DitherColors(display->palette->colors,
slouken@2753
   631
                             SDL_BITSPERPIXEL(display_mode.format));
slouken@2753
   632
        }
slouken@2753
   633
    }
slouken@2753
   634
    /* Move any fullscreen windows into position */
slouken@2753
   635
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
   636
        SDL_Window *window = &display->windows[i];
slouken@2753
   637
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
   638
            SDL_SetWindowPosition(window->id, SDL_WINDOWPOS_CENTERED,
slouken@2753
   639
                                  SDL_WINDOWPOS_CENTERED);
slouken@2753
   640
        }
slouken@2753
   641
    }
slouken@1895
   642
slouken@2753
   643
    return 0;
slouken@0
   644
}
slouken@0
   645
slouken@1895
   646
int
slouken@1895
   647
SDL_SetFullscreenDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   648
{
slouken@2753
   649
    SDL_VideoDisplay *display;
slouken@2753
   650
    SDL_DisplayMode fullscreen_mode;
slouken@2753
   651
    int i;
slouken@0
   652
slouken@2753
   653
    if (!_this) {
slouken@2753
   654
        SDL_UninitializedVideo();
slouken@2753
   655
        return -1;
slouken@2753
   656
    }
slouken@2753
   657
    display = &SDL_CurrentDisplay;
slouken@2753
   658
    if (!mode) {
slouken@2753
   659
        mode = &display->desktop_mode;
slouken@2753
   660
    }
slouken@2753
   661
    SDL_GetClosestDisplayMode(mode, &fullscreen_mode);
slouken@2753
   662
    if (SDL_memcmp
slouken@2753
   663
        (&fullscreen_mode, &display->fullscreen_mode,
slouken@2753
   664
         sizeof(fullscreen_mode)) == 0) {
slouken@2753
   665
        /* Nothing to do... */
slouken@2753
   666
        return 0;
slouken@2753
   667
    }
slouken@2753
   668
    display->fullscreen_mode = fullscreen_mode;
slouken@0
   669
slouken@2753
   670
    /* Actually set the mode if we have a fullscreen window visible */
slouken@2753
   671
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
   672
        SDL_Window *window = &display->windows[i];
slouken@2753
   673
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
   674
            if (SDL_SetDisplayMode(&display->fullscreen_mode) < 0) {
slouken@2753
   675
                return -1;
slouken@2753
   676
            }
slouken@2753
   677
        }
slouken@2753
   678
        if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
   679
            SDL_OnWindowResized(window);
slouken@2753
   680
        }
slouken@2753
   681
    }
slouken@2753
   682
    return 0;
slouken@0
   683
}
slouken@0
   684
slouken@1967
   685
int
slouken@1967
   686
SDL_GetFullscreenDisplayMode(SDL_DisplayMode * mode)
slouken@0
   687
{
slouken@2753
   688
    if (!_this) {
slouken@2753
   689
        SDL_UninitializedVideo();
slouken@2753
   690
        return -1;
slouken@2753
   691
    }
slouken@2753
   692
    if (mode) {
slouken@2753
   693
        *mode = SDL_CurrentDisplay.fullscreen_mode;
slouken@2753
   694
    }
slouken@2753
   695
    return 0;
slouken@0
   696
}
slouken@0
   697
slouken@1895
   698
int
slouken@1895
   699
SDL_SetDisplayPalette(const SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   700
{
slouken@2753
   701
    SDL_Palette *palette;
slouken@2753
   702
    int status = 0;
slouken@0
   703
slouken@2753
   704
    if (!_this) {
slouken@2753
   705
        SDL_UninitializedVideo();
slouken@2753
   706
        return -1;
slouken@2753
   707
    }
slouken@2753
   708
    palette = SDL_CurrentDisplay.palette;
slouken@2753
   709
    if (!palette) {
slouken@2753
   710
        SDL_SetError("Display mode does not have a palette");
slouken@2753
   711
        return -1;
slouken@2753
   712
    }
slouken@2753
   713
    status = SDL_SetPaletteColors(palette, colors, firstcolor, ncolors);
slouken@0
   714
slouken@2753
   715
    if (_this->SetDisplayPalette) {
slouken@2753
   716
        if (_this->SetDisplayPalette(_this, palette) < 0) {
slouken@2753
   717
            status = -1;
slouken@2753
   718
        }
slouken@2753
   719
    }
slouken@2753
   720
    return status;
slouken@0
   721
}
slouken@0
   722
slouken@1895
   723
int
slouken@1895
   724
SDL_GetDisplayPalette(SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   725
{
slouken@2753
   726
    SDL_Palette *palette;
slouken@1895
   727
slouken@2753
   728
    if (!_this) {
slouken@2753
   729
        SDL_UninitializedVideo();
slouken@2753
   730
        return -1;
slouken@2753
   731
    }
slouken@2753
   732
    palette = SDL_CurrentDisplay.palette;
slouken@2753
   733
    if (!palette->ncolors) {
slouken@2753
   734
        SDL_SetError("Display mode does not have a palette");
slouken@2753
   735
        return -1;
slouken@2753
   736
    }
slouken@2753
   737
    if (firstcolor < 0 || (firstcolor + ncolors) > palette->ncolors) {
slouken@2753
   738
        SDL_SetError("Palette indices are out of range");
slouken@2753
   739
        return -1;
slouken@2753
   740
    }
slouken@2753
   741
    SDL_memcpy(colors, &palette->colors[firstcolor],
slouken@2753
   742
               ncolors * sizeof(*colors));
slouken@2753
   743
    return 0;
slouken@0
   744
}
slouken@0
   745
slouken@1895
   746
SDL_WindowID
slouken@1895
   747
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
   748
{
slouken@2753
   749
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@2753
   750
                                  SDL_WINDOW_OPENGL |
slouken@2753
   751
                                  SDL_WINDOW_BORDERLESS |
slouken@2753
   752
                                  SDL_WINDOW_RESIZABLE);
slouken@2753
   753
    SDL_VideoDisplay *display;
slouken@2753
   754
    SDL_Window window;
slouken@2753
   755
    int num_windows;
slouken@2753
   756
    SDL_Window *windows;
slouken@0
   757
slouken@2753
   758
    if (!_this) {
slouken@2753
   759
        SDL_UninitializedVideo();
slouken@2753
   760
        return 0;
slouken@2753
   761
    }
slouken@2753
   762
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@2753
   763
        SDL_SetError("No OpenGL support in video driver");
slouken@2753
   764
        return 0;
slouken@2753
   765
    }
slouken@2753
   766
    /* Fullscreen windows don't have any window decorations */
slouken@2753
   767
    if (flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
   768
        flags |= SDL_WINDOW_BORDERLESS;
slouken@2753
   769
        flags &= ~SDL_WINDOW_RESIZABLE;
slouken@2753
   770
    }
slouken@2753
   771
    SDL_zero(window);
slouken@2753
   772
    window.id = _this->next_object_id++;
slouken@2753
   773
    window.x = x;
slouken@2753
   774
    window.y = y;
slouken@2753
   775
    window.w = w;
slouken@2753
   776
    window.h = h;
slouken@2753
   777
    window.flags = (flags & allowed_flags);
slouken@2753
   778
    window.display = _this->current_display;
slouken@1912
   779
slouken@2753
   780
    if (_this->CreateWindow && _this->CreateWindow(_this, &window) < 0) {
slouken@2753
   781
        return 0;
slouken@2753
   782
    }
slouken@2753
   783
    display = &SDL_CurrentDisplay;
slouken@2753
   784
    num_windows = display->num_windows;
slouken@2753
   785
    windows =
slouken@2753
   786
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@2753
   787
    if (!windows) {
slouken@2753
   788
        if (_this->DestroyWindow) {
slouken@2753
   789
            _this->DestroyWindow(_this, &window);
slouken@2753
   790
        }
slouken@2753
   791
        return 0;
slouken@2753
   792
    }
slouken@2753
   793
    windows[num_windows] = window;
slouken@2753
   794
    display->windows = windows;
slouken@2753
   795
    display->num_windows++;
slouken@0
   796
slouken@2753
   797
    if (title) {
slouken@2753
   798
        SDL_SetWindowTitle(window.id, title);
slouken@2753
   799
    }
slouken@2753
   800
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
   801
        SDL_MaximizeWindow(window.id);
slouken@2753
   802
    }
slouken@2753
   803
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
   804
        SDL_MinimizeWindow(window.id);
slouken@2753
   805
    }
slouken@2753
   806
    if (flags & SDL_WINDOW_SHOWN) {
slouken@2753
   807
        SDL_ShowWindow(window.id);
slouken@2753
   808
    }
slouken@2753
   809
    if (flags & SDL_WINDOW_INPUT_GRABBED) {
slouken@2753
   810
        SDL_SetWindowGrab(window.id, 1);
slouken@2753
   811
    }
slouken@2753
   812
    return window.id;
slouken@1895
   813
}
slouken@0
   814
slouken@1895
   815
SDL_WindowID
slouken@1895
   816
SDL_CreateWindowFrom(const void *data)
slouken@1895
   817
{
slouken@2753
   818
    SDL_VideoDisplay *display;
slouken@2753
   819
    SDL_Window window;
slouken@2753
   820
    int num_windows;
slouken@2753
   821
    SDL_Window *windows;
slouken@0
   822
slouken@2753
   823
    if (!_this) {
slouken@2753
   824
        SDL_UninitializedVideo();
slouken@2753
   825
        return (0);
slouken@2753
   826
    }
slouken@2753
   827
    SDL_zero(window);
slouken@2753
   828
    window.id = _this->next_object_id++;
slouken@2753
   829
    window.display = _this->current_display;
slouken@1895
   830
slouken@2753
   831
    if (!_this->CreateWindowFrom ||
slouken@2753
   832
        _this->CreateWindowFrom(_this, &window, data) < 0) {
slouken@2753
   833
        return 0;
slouken@2753
   834
    }
slouken@2753
   835
    display = &SDL_CurrentDisplay;
slouken@2753
   836
    num_windows = display->num_windows;
slouken@2753
   837
    windows =
slouken@2753
   838
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@2753
   839
    if (!windows) {
slouken@2753
   840
        if (_this->DestroyWindow) {
slouken@2753
   841
            _this->DestroyWindow(_this, &window);
slouken@2753
   842
        }
slouken@2753
   843
        if (window.title) {
slouken@2753
   844
            SDL_free(window.title);
slouken@2753
   845
        }
slouken@2753
   846
        return 0;
slouken@2753
   847
    }
slouken@2753
   848
    windows[num_windows] = window;
slouken@2753
   849
    display->windows = windows;
slouken@2753
   850
    display->num_windows++;
slouken@1895
   851
slouken@2753
   852
    return window.id;
slouken@1895
   853
}
slouken@1895
   854
slouken@1924
   855
int
slouken@1928
   856
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
   857
{
slouken@2753
   858
    char *title = window->title;
slouken@1956
   859
slouken@2753
   860
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@2753
   861
        SDL_SetError("No OpenGL support in video driver");
slouken@2753
   862
        return -1;
slouken@2753
   863
    }
slouken@2753
   864
    if (_this->DestroyWindow) {
slouken@2753
   865
        _this->DestroyWindow(_this, window);
slouken@2753
   866
    }
slouken@2753
   867
    window->title = NULL;
slouken@2753
   868
    window->flags =
slouken@2753
   869
        (flags &
slouken@2753
   870
         ~(SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED | SDL_WINDOW_SHOWN |
slouken@2753
   871
           SDL_WINDOW_INPUT_GRABBED));
slouken@1956
   872
slouken@2753
   873
    if (_this->CreateWindow && _this->CreateWindow(_this, window) < 0) {
slouken@2753
   874
        return -1;
slouken@2753
   875
    }
slouken@2753
   876
    if (title) {
slouken@2753
   877
        SDL_SetWindowTitle(window->id, title);
slouken@2753
   878
        SDL_free(title);
slouken@2753
   879
    }
slouken@2753
   880
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
   881
        SDL_MaximizeWindow(window->id);
slouken@2753
   882
    }
slouken@2753
   883
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
   884
        SDL_MinimizeWindow(window->id);
slouken@2753
   885
    }
slouken@2753
   886
    if (flags & SDL_WINDOW_SHOWN) {
slouken@2753
   887
        SDL_ShowWindow(window->id);
slouken@2753
   888
    }
slouken@2753
   889
    if (flags & SDL_WINDOW_INPUT_GRABBED) {
slouken@2753
   890
        SDL_SetWindowGrab(window->id, 1);
slouken@2753
   891
    }
slouken@2753
   892
    return 0;
slouken@1924
   893
}
slouken@1924
   894
slouken@2753
   895
SDL_Window *
slouken@1895
   896
SDL_GetWindowFromID(SDL_WindowID windowID)
slouken@1895
   897
{
slouken@2753
   898
    int i, j;
slouken@1895
   899
slouken@2753
   900
    if (!_this) {
slouken@2753
   901
        SDL_UninitializedVideo();
slouken@2753
   902
        return NULL;
slouken@2753
   903
    }
slouken@2753
   904
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
   905
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
   906
        for (j = 0; j < display->num_windows; ++j) {
slouken@2753
   907
            SDL_Window *window = &display->windows[j];
slouken@2753
   908
            if (window->id == windowID) {
slouken@2753
   909
                return window;
slouken@2753
   910
            }
slouken@2753
   911
        }
slouken@2753
   912
    }
slouken@2753
   913
    return NULL;
slouken@1895
   914
}
slouken@1895
   915
slouken@1895
   916
SDL_VideoDisplay *
slouken@1895
   917
SDL_GetDisplayFromWindow(SDL_Window * window)
slouken@1895
   918
{
slouken@2753
   919
    if (!_this) {
slouken@2753
   920
        SDL_UninitializedVideo();
slouken@2753
   921
        return NULL;
slouken@2753
   922
    }
slouken@2753
   923
    if (!window) {
slouken@2753
   924
        return NULL;
slouken@2753
   925
    }
slouken@2753
   926
    return &_this->displays[window->display];
slouken@1895
   927
}
slouken@1895
   928
slouken@1895
   929
Uint32
slouken@1895
   930
SDL_GetWindowFlags(SDL_WindowID windowID)
slouken@1895
   931
{
slouken@2753
   932
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   933
slouken@2753
   934
    if (!window) {
slouken@2753
   935
        return 0;
slouken@2753
   936
    }
slouken@2753
   937
    return window->flags;
slouken@1895
   938
}
slouken@1895
   939
slouken@1895
   940
void
slouken@1895
   941
SDL_SetWindowTitle(SDL_WindowID windowID, const char *title)
slouken@1895
   942
{
slouken@2753
   943
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   944
slouken@2753
   945
    if (!window || title == window->title) {
slouken@2753
   946
        return;
slouken@2753
   947
    }
slouken@2753
   948
    if (window->title) {
slouken@2753
   949
        SDL_free(window->title);
slouken@2753
   950
    }
slouken@2753
   951
    if (title) {
slouken@2753
   952
        window->title = SDL_strdup(title);
slouken@2753
   953
    } else {
slouken@2753
   954
        window->title = NULL;
slouken@2753
   955
    }
slouken@1956
   956
slouken@2753
   957
    if (_this->SetWindowTitle) {
slouken@2753
   958
        _this->SetWindowTitle(_this, window);
slouken@2753
   959
    }
slouken@1895
   960
}
slouken@1895
   961
slouken@2753
   962
const char *
slouken@1895
   963
SDL_GetWindowTitle(SDL_WindowID windowID)
slouken@1895
   964
{
slouken@2753
   965
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   966
slouken@2753
   967
    if (!window) {
slouken@2753
   968
        return NULL;
slouken@2753
   969
    }
slouken@2753
   970
    return window->title;
slouken@1895
   971
}
slouken@1895
   972
slouken@1895
   973
void
slouken@1895
   974
SDL_SetWindowData(SDL_WindowID windowID, void *userdata)
slouken@1895
   975
{
slouken@2753
   976
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   977
slouken@2753
   978
    if (!window) {
slouken@2753
   979
        return;
slouken@2753
   980
    }
slouken@2753
   981
    window->userdata = userdata;
slouken@1895
   982
}
slouken@1895
   983
slouken@2753
   984
void *
slouken@1895
   985
SDL_GetWindowData(SDL_WindowID windowID)
slouken@1895
   986
{
slouken@2753
   987
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   988
slouken@2753
   989
    if (!window) {
slouken@2753
   990
        return NULL;
slouken@2753
   991
    }
slouken@2753
   992
    return window->userdata;
slouken@1895
   993
}
slouken@1895
   994
slouken@1895
   995
void
slouken@1895
   996
SDL_SetWindowPosition(SDL_WindowID windowID, int x, int y)
slouken@1895
   997
{
slouken@2753
   998
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
   999
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1000
slouken@2753
  1001
    if (!window) {
slouken@2753
  1002
        return;
slouken@2753
  1003
    }
slouken@2753
  1004
    if (x == SDL_WINDOWPOS_CENTERED) {
slouken@2753
  1005
        window->x = (display->current_mode.w - window->w) / 2;
slouken@2753
  1006
    } else if (x != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1007
        window->x = x;
slouken@2753
  1008
    }
slouken@2753
  1009
    if (y == SDL_WINDOWPOS_CENTERED) {
slouken@2753
  1010
        window->y = (display->current_mode.h - window->h) / 2;
slouken@2753
  1011
    } else if (y != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1012
        window->y = y;
slouken@2753
  1013
    }
slouken@2753
  1014
    if (_this->SetWindowPosition) {
slouken@2753
  1015
        _this->SetWindowPosition(_this, window);
slouken@2753
  1016
    }
slouken@1895
  1017
}
slouken@1895
  1018
slouken@1895
  1019
void
slouken@1895
  1020
SDL_GetWindowPosition(SDL_WindowID windowID, int *x, int *y)
slouken@1895
  1021
{
slouken@2753
  1022
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1023
slouken@2753
  1024
    if (!window) {
slouken@2753
  1025
        return;
slouken@2753
  1026
    }
slouken@2753
  1027
    if (x) {
slouken@2753
  1028
        *x = window->x;
slouken@2753
  1029
    }
slouken@2753
  1030
    if (y) {
slouken@2753
  1031
        *y = window->y;
slouken@2753
  1032
    }
slouken@1895
  1033
}
slouken@1895
  1034
slouken@1895
  1035
void
slouken@1895
  1036
SDL_SetWindowSize(SDL_WindowID windowID, int w, int h)
slouken@1895
  1037
{
slouken@2753
  1038
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1039
slouken@2753
  1040
    if (!window) {
slouken@2753
  1041
        return;
slouken@2753
  1042
    }
slouken@2753
  1043
    window->w = w;
slouken@2753
  1044
    window->h = h;
slouken@1895
  1045
slouken@2753
  1046
    if (_this->SetWindowSize) {
slouken@2753
  1047
        _this->SetWindowSize(_this, window);
slouken@2753
  1048
    }
slouken@2849
  1049
    SDL_OnWindowResized(window);
slouken@1895
  1050
}
slouken@1895
  1051
slouken@1895
  1052
void
slouken@1895
  1053
SDL_GetWindowSize(SDL_WindowID windowID, int *w, int *h)
slouken@1895
  1054
{
slouken@2753
  1055
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1056
slouken@2753
  1057
    if (!window) {
slouken@2849
  1058
        if (w) {
slouken@2849
  1059
            *w = window->w;
slouken@2849
  1060
        }
slouken@2849
  1061
        if (h) {
slouken@2849
  1062
            *h = window->h;
slouken@2849
  1063
        }
slouken@2849
  1064
    } else {
slouken@2849
  1065
        if (w) {
slouken@2849
  1066
            *w = 0;
slouken@2849
  1067
        }
slouken@2849
  1068
        if (h) {
slouken@2849
  1069
            *h = 0;
slouken@2849
  1070
        }
slouken@2753
  1071
    }
slouken@1895
  1072
}
slouken@1895
  1073
slouken@1895
  1074
void
slouken@1895
  1075
SDL_ShowWindow(SDL_WindowID windowID)
slouken@1895
  1076
{
slouken@2753
  1077
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1078
slouken@2753
  1079
    if (!window || (window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1080
        return;
slouken@2753
  1081
    }
slouken@2753
  1082
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1083
slouken@2753
  1084
    if (_this->ShowWindow) {
slouken@2753
  1085
        _this->ShowWindow(_this, window);
slouken@2753
  1086
    }
slouken@1895
  1087
}
slouken@1895
  1088
slouken@1895
  1089
void
slouken@1895
  1090
SDL_HideWindow(SDL_WindowID windowID)
slouken@1895
  1091
{
slouken@2753
  1092
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1093
slouken@2753
  1094
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1095
        return;
slouken@2753
  1096
    }
slouken@2753
  1097
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1098
slouken@2753
  1099
    if (_this->HideWindow) {
slouken@2753
  1100
        _this->HideWindow(_this, window);
slouken@2753
  1101
    }
slouken@1895
  1102
}
slouken@1895
  1103
slouken@1895
  1104
void
slouken@1895
  1105
SDL_RaiseWindow(SDL_WindowID windowID)
slouken@1895
  1106
{
slouken@2753
  1107
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1108
slouken@2753
  1109
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1110
        return;
slouken@2753
  1111
    }
slouken@2753
  1112
    if (_this->RaiseWindow) {
slouken@2753
  1113
        _this->RaiseWindow(_this, window);
slouken@2753
  1114
    }
slouken@1895
  1115
}
slouken@1895
  1116
slouken@1895
  1117
void
slouken@1895
  1118
SDL_MaximizeWindow(SDL_WindowID windowID)
slouken@1895
  1119
{
slouken@2753
  1120
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1121
slouken@2753
  1122
    if (!window || (window->flags & SDL_WINDOW_MAXIMIZED)) {
slouken@2753
  1123
        return;
slouken@2753
  1124
    }
slouken@2753
  1125
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@1895
  1126
slouken@2753
  1127
    if (_this->MaximizeWindow) {
slouken@2753
  1128
        _this->MaximizeWindow(_this, window);
slouken@2753
  1129
    }
slouken@1895
  1130
}
slouken@1895
  1131
slouken@1895
  1132
void
slouken@1895
  1133
SDL_MinimizeWindow(SDL_WindowID windowID)
slouken@1895
  1134
{
slouken@2753
  1135
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1136
slouken@2753
  1137
    if (!window || (window->flags & SDL_WINDOW_MINIMIZED)) {
slouken@2753
  1138
        return;
slouken@2753
  1139
    }
slouken@2753
  1140
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@1895
  1141
slouken@2753
  1142
    if (_this->MinimizeWindow) {
slouken@2753
  1143
        _this->MinimizeWindow(_this, window);
slouken@2753
  1144
    }
slouken@1895
  1145
}
slouken@1895
  1146
slouken@1895
  1147
void
slouken@1895
  1148
SDL_RestoreWindow(SDL_WindowID windowID)
slouken@1895
  1149
{
slouken@2753
  1150
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1151
slouken@2753
  1152
    if (!window
slouken@2753
  1153
        || (window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@2753
  1154
        return;
slouken@2753
  1155
    }
slouken@2753
  1156
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@1895
  1157
slouken@2753
  1158
    if (_this->RestoreWindow) {
slouken@2753
  1159
        _this->RestoreWindow(_this, window);
slouken@2753
  1160
    }
slouken@1895
  1161
}
slouken@1895
  1162
slouken@1895
  1163
int
slouken@1895
  1164
SDL_SetWindowFullscreen(SDL_WindowID windowID, int fullscreen)
slouken@1895
  1165
{
slouken@2753
  1166
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1167
slouken@2753
  1168
    if (!window) {
slouken@2753
  1169
        return -1;
slouken@2753
  1170
    }
slouken@2753
  1171
    if (fullscreen) {
slouken@2753
  1172
        fullscreen = SDL_WINDOW_FULLSCREEN;
slouken@2753
  1173
    }
slouken@2753
  1174
    if ((window->flags & SDL_WINDOW_FULLSCREEN) == fullscreen) {
slouken@2753
  1175
        return 0;
slouken@2753
  1176
    }
slouken@2753
  1177
    if (fullscreen) {
slouken@2753
  1178
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
  1179
slouken@2753
  1180
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
  1181
            SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1182
slouken@2753
  1183
            /* Hide any other fullscreen windows */
slouken@2753
  1184
            int i;
slouken@2753
  1185
            for (i = 0; i < display->num_windows; ++i) {
slouken@2753
  1186
                SDL_Window *other = &display->windows[i];
slouken@2753
  1187
                if (other->id != windowID && FULLSCREEN_VISIBLE(other)) {
slouken@2753
  1188
                    SDL_MinimizeWindow(other->id);
slouken@2753
  1189
                }
slouken@2753
  1190
            }
slouken@1895
  1191
slouken@2753
  1192
            SDL_SetDisplayMode(&display->fullscreen_mode);
slouken@2753
  1193
        }
slouken@2753
  1194
    } else {
slouken@2753
  1195
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@1895
  1196
slouken@2753
  1197
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
  1198
            SDL_SetDisplayMode(NULL);
slouken@2753
  1199
        }
slouken@2753
  1200
    }
slouken@2753
  1201
    return 0;
slouken@1895
  1202
}
slouken@1895
  1203
slouken@1895
  1204
void
slouken@1895
  1205
SDL_SetWindowGrab(SDL_WindowID windowID, int mode)
slouken@1895
  1206
{
slouken@2753
  1207
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1208
slouken@2753
  1209
    if (!window || (!!mode == !!(window->flags & SDL_WINDOW_INPUT_GRABBED))) {
slouken@2753
  1210
        return;
slouken@2753
  1211
    }
slouken@2753
  1212
    if (mode) {
slouken@2753
  1213
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1214
    } else {
slouken@2753
  1215
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1216
    }
slouken@1895
  1217
slouken@2753
  1218
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@2753
  1219
        _this->SetWindowGrab(_this, window);
slouken@2753
  1220
    }
slouken@1895
  1221
}
slouken@1895
  1222
slouken@1895
  1223
int
slouken@1895
  1224
SDL_GetWindowGrab(SDL_WindowID windowID)
slouken@1895
  1225
{
slouken@2753
  1226
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1227
slouken@2753
  1228
    if (!window) {
slouken@2753
  1229
        return 0;
slouken@2753
  1230
    }
slouken@2753
  1231
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1232
}
slouken@1895
  1233
slouken@1895
  1234
void
slouken@1895
  1235
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1236
{
slouken@1895
  1237
}
slouken@1895
  1238
slouken@1895
  1239
void
slouken@1895
  1240
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1241
{
slouken@1895
  1242
}
slouken@1895
  1243
slouken@1895
  1244
void
slouken@1970
  1245
SDL_OnWindowResized(SDL_Window * window)
slouken@1970
  1246
{
slouken@2753
  1247
    SDL_Renderer *renderer = window->renderer;
slouken@1970
  1248
slouken@2753
  1249
    if (renderer && renderer->DisplayModeChanged) {
slouken@2753
  1250
        renderer->DisplayModeChanged(renderer);
slouken@2753
  1251
    }
slouken@1970
  1252
}
slouken@1970
  1253
slouken@1970
  1254
void
slouken@1895
  1255
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1256
{
slouken@2753
  1257
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1258
slouken@2753
  1259
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
  1260
        SDL_SetDisplayMode(&display->fullscreen_mode);
slouken@2753
  1261
    }
slouken@2753
  1262
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@2753
  1263
        _this->SetDisplayGammaRamp(_this, display->gamma);
slouken@2753
  1264
    }
slouken@2753
  1265
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) && _this->SetWindowGrab) {
slouken@2753
  1266
        _this->SetWindowGrab(_this, window);
slouken@2753
  1267
    }
slouken@1895
  1268
}
slouken@1895
  1269
slouken@1895
  1270
void
slouken@1895
  1271
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1272
{
slouken@2753
  1273
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1274
slouken@2753
  1275
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
  1276
        SDL_MinimizeWindow(window->id);
slouken@2753
  1277
        SDL_SetDisplayMode(NULL);
slouken@2753
  1278
    }
slouken@2753
  1279
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@2753
  1280
        _this->SetDisplayGammaRamp(_this, display->saved_gamma);
slouken@2753
  1281
    }
slouken@2753
  1282
    if ((window->flags & SDL_WINDOW_INPUT_GRABBED) && _this->SetWindowGrab) {
slouken@2753
  1283
        _this->SetWindowGrab(_this, window);
slouken@2753
  1284
    }
slouken@1895
  1285
}
slouken@1895
  1286
slouken@1895
  1287
SDL_WindowID
slouken@1895
  1288
SDL_GetFocusWindow(void)
slouken@1895
  1289
{
slouken@2753
  1290
    SDL_VideoDisplay *display;
slouken@2753
  1291
    int i;
slouken@1895
  1292
slouken@2753
  1293
    if (!_this) {
slouken@2753
  1294
        return 0;
slouken@2753
  1295
    }
slouken@2753
  1296
    display = &SDL_CurrentDisplay;
slouken@2753
  1297
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
  1298
        SDL_Window *window = &display->windows[i];
slouken@1895
  1299
slouken@2753
  1300
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@2753
  1301
            return window->id;
slouken@2753
  1302
        }
slouken@2753
  1303
    }
slouken@2753
  1304
    return 0;
slouken@1895
  1305
}
slouken@1895
  1306
slouken@1895
  1307
void
slouken@1895
  1308
SDL_DestroyWindow(SDL_WindowID windowID)
slouken@1895
  1309
{
slouken@2753
  1310
    int i, j;
slouken@1895
  1311
slouken@2753
  1312
    if (!_this) {
slouken@2753
  1313
        return;
slouken@2753
  1314
    }
slouken@2753
  1315
    /* Restore video mode, etc. */
slouken@2753
  1316
    SDL_SendWindowEvent(windowID, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@1895
  1317
slouken@2753
  1318
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
  1319
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  1320
        for (j = 0; j < display->num_windows; ++j) {
slouken@2753
  1321
            SDL_Window *window = &display->windows[j];
slouken@2753
  1322
            if (window->id != windowID) {
slouken@2753
  1323
                continue;
slouken@2753
  1324
            }
slouken@2753
  1325
            if (window->title) {
slouken@2753
  1326
                SDL_free(window->title);
slouken@2753
  1327
                window->title = NULL;
slouken@2753
  1328
            }
slouken@2753
  1329
            if (window->renderer) {
slouken@2753
  1330
                SDL_DestroyRenderer(window->id);
slouken@2753
  1331
                window->renderer = NULL;
slouken@2753
  1332
            }
slouken@2753
  1333
            if (_this->DestroyWindow) {
slouken@2753
  1334
                _this->DestroyWindow(_this, window);
slouken@2753
  1335
            }
slouken@2753
  1336
            if (j != display->num_windows - 1) {
slouken@2753
  1337
                SDL_memcpy(&display->windows[i],
slouken@2753
  1338
                           &display->windows[i + 1],
slouken@2753
  1339
                           (display->num_windows - i - 1) * sizeof(*window));
slouken@2753
  1340
            }
slouken@2753
  1341
            --display->num_windows;
slouken@2753
  1342
            return;
slouken@2753
  1343
        }
slouken@2753
  1344
    }
slouken@1895
  1345
}
slouken@1895
  1346
slouken@1895
  1347
void
slouken@1895
  1348
SDL_AddRenderDriver(int displayIndex, const SDL_RenderDriver * driver)
slouken@1895
  1349
{
slouken@2753
  1350
    SDL_VideoDisplay *display;
slouken@2753
  1351
    SDL_RenderDriver *render_drivers;
slouken@1895
  1352
slouken@2753
  1353
    if (displayIndex >= _this->num_displays) {
slouken@2753
  1354
        return;
slouken@2753
  1355
    }
slouken@2753
  1356
    display = &_this->displays[displayIndex];
slouken@2119
  1357
slouken@2753
  1358
    render_drivers =
slouken@2753
  1359
        SDL_realloc(display->render_drivers,
slouken@2753
  1360
                    (display->num_render_drivers +
slouken@2753
  1361
                     1) * sizeof(*render_drivers));
slouken@2753
  1362
    if (render_drivers) {
slouken@2753
  1363
        render_drivers[display->num_render_drivers] = *driver;
slouken@2753
  1364
        display->render_drivers = render_drivers;
slouken@2753
  1365
        display->num_render_drivers++;
slouken@2753
  1366
    }
slouken@1895
  1367
}
slouken@1895
  1368
slouken@1895
  1369
int
slouken@1969
  1370
SDL_GetNumRenderDrivers(void)
slouken@1895
  1371
{
slouken@2753
  1372
    if (_this) {
slouken@2753
  1373
        return SDL_CurrentDisplay.num_render_drivers;
slouken@2753
  1374
    }
slouken@2753
  1375
    return 0;
slouken@1895
  1376
}
slouken@1895
  1377
slouken@1895
  1378
int
slouken@1969
  1379
SDL_GetRenderDriverInfo(int index, SDL_RendererInfo * info)
slouken@1895
  1380
{
slouken@2753
  1381
    if (!_this) {
slouken@2753
  1382
        SDL_UninitializedVideo();
slouken@2753
  1383
        return -1;
slouken@2753
  1384
    }
slouken@2753
  1385
    if (index < 0 || index >= SDL_GetNumRenderDrivers()) {
slouken@2753
  1386
        SDL_SetError("index must be in the range of 0 - %d",
slouken@2753
  1387
                     SDL_GetNumRenderDrivers() - 1);
slouken@2753
  1388
        return -1;
slouken@2753
  1389
    }
slouken@2753
  1390
    *info = SDL_CurrentDisplay.render_drivers[index].info;
slouken@2753
  1391
    return 0;
slouken@1895
  1392
}
slouken@1895
  1393
slouken@1895
  1394
int
slouken@1895
  1395
SDL_CreateRenderer(SDL_WindowID windowID, int index, Uint32 flags)
slouken@1895
  1396
{
slouken@2753
  1397
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1398
slouken@2753
  1399
    if (!window) {
slouken@2753
  1400
        return 0;
slouken@2753
  1401
    }
slouken@2753
  1402
    if (index < 0) {
slouken@2753
  1403
        const char *override = SDL_getenv("SDL_VIDEO_RENDERER");
slouken@2753
  1404
        int n = SDL_GetNumRenderDrivers();
slouken@2753
  1405
        for (index = 0; index < n; ++index) {
slouken@2753
  1406
            SDL_RenderDriver *driver =
slouken@2753
  1407
                &SDL_CurrentDisplay.render_drivers[index];
slouken@1895
  1408
slouken@2753
  1409
            if (override) {
slouken@2753
  1410
                if (SDL_strcasecmp(override, driver->info.name) == 0) {
slouken@2753
  1411
                    break;
slouken@2753
  1412
                }
slouken@2753
  1413
            } else {
slouken@2753
  1414
                if ((driver->info.flags & flags) == flags) {
slouken@2753
  1415
                    break;
slouken@2753
  1416
                }
slouken@2753
  1417
            }
slouken@2753
  1418
        }
slouken@2753
  1419
        if (index == n) {
slouken@2753
  1420
            SDL_SetError("Couldn't find matching render driver");
slouken@2753
  1421
            return -1;
slouken@2753
  1422
        }
slouken@2753
  1423
    }
slouken@2753
  1424
    if (index >= SDL_GetNumRenderDrivers()) {
slouken@2753
  1425
        SDL_SetError("index must be -1 or in the range of 0 - %d",
slouken@2753
  1426
                     SDL_GetNumRenderDrivers() - 1);
slouken@2753
  1427
        return -1;
slouken@2753
  1428
    }
slouken@2753
  1429
    /* Free any existing renderer */
slouken@2753
  1430
    SDL_DestroyRenderer(windowID);
slouken@1895
  1431
slouken@2753
  1432
    /* Create a new renderer instance */
slouken@2753
  1433
    window->renderer = SDL_CurrentDisplay.render_drivers[index]
slouken@2753
  1434
        .CreateRenderer(window, flags);
slouken@2753
  1435
    SDL_SelectRenderer(window->id);
slouken@1895
  1436
slouken@2753
  1437
    return 0;
slouken@1895
  1438
}
slouken@1895
  1439
slouken@1895
  1440
int
slouken@1895
  1441
SDL_SelectRenderer(SDL_WindowID windowID)
slouken@1895
  1442
{
slouken@2753
  1443
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  1444
    SDL_Renderer *renderer;
slouken@1895
  1445
slouken@2753
  1446
    if (!window || !window->renderer) {
slouken@2753
  1447
        return -1;
slouken@2753
  1448
    }
slouken@2753
  1449
    renderer = window->renderer;
slouken@2753
  1450
    if (renderer && renderer->ActivateRenderer) {
slouken@2753
  1451
        if (renderer->ActivateRenderer(renderer) < 0) {
slouken@2753
  1452
            return -1;
slouken@2753
  1453
        }
slouken@2753
  1454
    }
slouken@2753
  1455
    SDL_CurrentDisplay.current_renderer = renderer;
slouken@2753
  1456
    return 0;
slouken@1895
  1457
}
slouken@1895
  1458
slouken@1969
  1459
int
slouken@1969
  1460
SDL_GetRendererInfo(SDL_RendererInfo * info)
slouken@1969
  1461
{
slouken@2753
  1462
    if (!_this) {
slouken@2753
  1463
        SDL_UninitializedVideo();
slouken@2753
  1464
        return -1;
slouken@2753
  1465
    }
slouken@2753
  1466
    if (!SDL_CurrentDisplay.current_renderer) {
slouken@2753
  1467
        SDL_SetError("There is no current renderer");
slouken@2753
  1468
        return -1;
slouken@2753
  1469
    }
slouken@2753
  1470
    *info = SDL_CurrentDisplay.current_renderer->info;
slouken@2753
  1471
    return 0;
slouken@1969
  1472
}
slouken@1969
  1473
slouken@1895
  1474
SDL_TextureID
slouken@1895
  1475
SDL_CreateTexture(Uint32 format, int access, int w, int h)
slouken@1895
  1476
{
slouken@2753
  1477
    int hash;
slouken@2753
  1478
    SDL_Renderer *renderer;
slouken@2753
  1479
    SDL_Texture *texture;
slouken@1895
  1480
slouken@2753
  1481
    if (!_this) {
slouken@2753
  1482
        SDL_UninitializedVideo();
slouken@2753
  1483
        return 0;
slouken@2753
  1484
    }
slouken@2753
  1485
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  1486
    if (!renderer) {
slouken@2810
  1487
        return 0;
slouken@2810
  1488
    }
slouken@2810
  1489
    if (!renderer->CreateTexture) {
slouken@2810
  1490
        SDL_Unsupported();
slouken@2753
  1491
        return 0;
slouken@2753
  1492
    }
slouken@2753
  1493
    texture = (SDL_Texture *) SDL_calloc(1, sizeof(*texture));
slouken@2753
  1494
    if (!texture) {
slouken@2753
  1495
        SDL_OutOfMemory();
slouken@2753
  1496
        return 0;
slouken@2753
  1497
    }
slouken@2753
  1498
    texture->id = _this->next_object_id++;
slouken@2753
  1499
    texture->format = format;
slouken@2753
  1500
    texture->access = access;
slouken@2753
  1501
    texture->w = w;
slouken@2753
  1502
    texture->h = h;
slouken@2753
  1503
    texture->r = 255;
slouken@2753
  1504
    texture->g = 255;
slouken@2753
  1505
    texture->b = 255;
slouken@2753
  1506
    texture->a = 255;
slouken@2753
  1507
    texture->renderer = renderer;
slouken@1895
  1508
slouken@2753
  1509
    if (renderer->CreateTexture(renderer, texture) < 0) {
slouken@2753
  1510
        if (renderer->DestroyTexture) {
slouken@2753
  1511
            renderer->DestroyTexture(renderer, texture);
slouken@2753
  1512
        }
slouken@2753
  1513
        SDL_free(texture);
slouken@2753
  1514
        return 0;
slouken@2753
  1515
    }
slouken@2753
  1516
    hash = (texture->id % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  1517
    texture->next = SDL_CurrentDisplay.textures[hash];
slouken@2753
  1518
    SDL_CurrentDisplay.textures[hash] = texture;
slouken@1895
  1519
slouken@2753
  1520
    return texture->id;
slouken@1895
  1521
}
slouken@1895
  1522
slouken@1895
  1523
SDL_TextureID
slouken@2222
  1524
SDL_CreateTextureFromSurface(Uint32 format, SDL_Surface * surface)
slouken@1895
  1525
{
slouken@2753
  1526
    SDL_TextureID textureID;
slouken@2753
  1527
    SDL_PixelFormat *fmt;
slouken@2753
  1528
    int bpp;
slouken@2753
  1529
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@1895
  1530
slouken@2753
  1531
    if (!surface) {
slouken@2753
  1532
        SDL_SetError("SDL_CreateTextureFromSurface() passed NULL surface");
slouken@2753
  1533
        return 0;
slouken@2753
  1534
    }
slouken@2753
  1535
    fmt = surface->format;
slouken@1895
  1536
slouken@2753
  1537
    if (format) {
slouken@2753
  1538
        if (!SDL_PixelFormatEnumToMasks
slouken@2753
  1539
            (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@2753
  1540
            SDL_SetError("Unknown pixel format");
slouken@2753
  1541
            return 0;
slouken@2753
  1542
        }
slouken@2753
  1543
    } else {
slouken@2753
  1544
        if (surface->format->Amask
slouken@2753
  1545
            || !(surface->map->info.flags &
slouken@2753
  1546
                 (SDL_COPY_COLORKEY | SDL_COPY_MASK | SDL_COPY_BLEND))) {
slouken@2753
  1547
            bpp = fmt->BitsPerPixel;
slouken@2753
  1548
            Rmask = fmt->Rmask;
slouken@2753
  1549
            Gmask = fmt->Gmask;
slouken@2753
  1550
            Bmask = fmt->Bmask;
slouken@2753
  1551
            Amask = fmt->Amask;
slouken@2753
  1552
        } else {
slouken@2753
  1553
            /* Need a format with alpha */
slouken@2753
  1554
            bpp = 32;
slouken@2753
  1555
            Rmask = 0x00FF0000;
slouken@2753
  1556
            Gmask = 0x0000FF00;
slouken@2753
  1557
            Bmask = 0x000000FF;
slouken@2753
  1558
            Amask = 0xFF000000;
slouken@2753
  1559
        }
slouken@2753
  1560
        format = SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
slouken@2753
  1561
        if (!format) {
slouken@2753
  1562
            SDL_SetError("Unknown pixel format");
slouken@2753
  1563
            return 0;
slouken@2753
  1564
        }
slouken@2753
  1565
    }
slouken@1895
  1566
slouken@2753
  1567
    textureID =
slouken@2753
  1568
        SDL_CreateTexture(format, SDL_TEXTUREACCESS_STATIC, surface->w,
slouken@2753
  1569
                          surface->h);
slouken@2753
  1570
    if (!textureID) {
slouken@2753
  1571
        return 0;
slouken@2753
  1572
    }
slouken@2753
  1573
    if (bpp == fmt->BitsPerPixel && Rmask == fmt->Rmask && Gmask == fmt->Gmask
slouken@2753
  1574
        && Bmask == fmt->Bmask && Amask == fmt->Amask) {
slouken@2753
  1575
        if (SDL_MUSTLOCK(surface)) {
slouken@2753
  1576
            if (SDL_LockSurface(surface) < 0) {
slouken@2753
  1577
                SDL_DestroyTexture(textureID);
slouken@2753
  1578
                return 0;
slouken@2753
  1579
            }
slouken@2753
  1580
            SDL_UpdateTexture(textureID, NULL, surface->pixels,
slouken@2753
  1581
                              surface->pitch);
slouken@2753
  1582
            SDL_UnlockSurface(surface);
slouken@2753
  1583
        } else {
slouken@2753
  1584
            SDL_UpdateTexture(textureID, NULL, surface->pixels,
slouken@2753
  1585
                              surface->pitch);
slouken@2753
  1586
        }
slouken@2753
  1587
    } else {
slouken@2753
  1588
        SDL_PixelFormat *dst_fmt;
slouken@2753
  1589
        SDL_Surface *dst = NULL;
slouken@1895
  1590
slouken@2753
  1591
        /* Set up a destination surface for the texture update */
slouken@2753
  1592
        dst_fmt = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask);
slouken@2753
  1593
        if (dst_fmt) {
slouken@2753
  1594
            if (SDL_ISPIXELFORMAT_INDEXED(format)) {
slouken@2753
  1595
                dst_fmt->palette =
slouken@2753
  1596
                    SDL_AllocPalette((1 << SDL_BITSPERPIXEL(format)));
slouken@2753
  1597
                if (dst_fmt->palette) {
slouken@2753
  1598
                    /*
slouken@2753
  1599
                     * FIXME: Should we try to copy
slouken@2753
  1600
                     * fmt->palette?
slouken@2753
  1601
                     */
slouken@2753
  1602
                    SDL_DitherColors(dst_fmt->palette->colors,
slouken@2753
  1603
                                     SDL_BITSPERPIXEL(format));
slouken@2753
  1604
                }
slouken@2753
  1605
            }
slouken@2753
  1606
            dst = SDL_ConvertSurface(surface, dst_fmt, 0);
slouken@2753
  1607
            if (dst) {
slouken@2753
  1608
                SDL_UpdateTexture(textureID, NULL, dst->pixels, dst->pitch);
slouken@2753
  1609
                SDL_FreeSurface(dst);
slouken@2753
  1610
            }
slouken@2753
  1611
            if (dst_fmt->palette) {
slouken@2753
  1612
                SDL_FreePalette(dst_fmt->palette);
slouken@2753
  1613
            }
slouken@2753
  1614
            SDL_FreeFormat(dst_fmt);
slouken@2753
  1615
        }
slouken@2753
  1616
        if (!dst) {
slouken@2753
  1617
            SDL_DestroyTexture(textureID);
slouken@2753
  1618
            return 0;
slouken@2753
  1619
        }
slouken@2753
  1620
    }
slouken@2222
  1621
slouken@2753
  1622
    if (SDL_ISPIXELFORMAT_INDEXED(format) && fmt->palette) {
slouken@2753
  1623
        SDL_SetTexturePalette(textureID, fmt->palette->colors, 0,
slouken@2753
  1624
                              fmt->palette->ncolors);
slouken@2753
  1625
    }
slouken@2753
  1626
    return textureID;
slouken@1895
  1627
}
slouken@1895
  1628
slouken@1895
  1629
static __inline__ SDL_Texture *
slouken@1895
  1630
SDL_GetTextureFromID(SDL_TextureID textureID)
slouken@1895
  1631
{
slouken@2753
  1632
    int hash;
slouken@2753
  1633
    SDL_Texture *texture;
slouken@1895
  1634
slouken@2753
  1635
    if (!_this) {
slouken@2753
  1636
        return NULL;
slouken@2753
  1637
    }
slouken@2753
  1638
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  1639
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@2753
  1640
         texture = texture->next) {
slouken@2753
  1641
        if (texture->id == textureID) {
slouken@2753
  1642
            return texture;
slouken@2753
  1643
        }
slouken@2753
  1644
    }
slouken@2753
  1645
    return NULL;
slouken@1895
  1646
}
slouken@1895
  1647
slouken@1895
  1648
int
slouken@1895
  1649
SDL_QueryTexture(SDL_TextureID textureID, Uint32 * format, int *access,
slouken@2753
  1650
                 int *w, int *h)
slouken@1895
  1651
{
slouken@2753
  1652
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1653
slouken@2753
  1654
    if (!texture) {
slouken@2753
  1655
        return -1;
slouken@2753
  1656
    }
slouken@2753
  1657
    if (format) {
slouken@2753
  1658
        *format = texture->format;
slouken@2753
  1659
    }
slouken@2753
  1660
    if (access) {
slouken@2753
  1661
        *access = texture->access;
slouken@2753
  1662
    }
slouken@2753
  1663
    if (w) {
slouken@2753
  1664
        *w = texture->w;
slouken@2753
  1665
    }
slouken@2753
  1666
    if (h) {
slouken@2753
  1667
        *h = texture->h;
slouken@2753
  1668
    }
slouken@2753
  1669
    return 0;
slouken@1895
  1670
}
slouken@1895
  1671
slouken@1895
  1672
int
slouken@1895
  1673
SDL_QueryTexturePixels(SDL_TextureID textureID, void **pixels, int *pitch)
slouken@1895
  1674
{
slouken@2753
  1675
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1676
    SDL_Renderer *renderer;
slouken@1895
  1677
slouken@2753
  1678
    if (!texture) {
slouken@2753
  1679
        return -1;
slouken@2753
  1680
    }
slouken@2753
  1681
    renderer = texture->renderer;
slouken@2753
  1682
    if (!renderer->QueryTexturePixels) {
slouken@2810
  1683
        SDL_Unsupported();
slouken@2753
  1684
        return -1;
slouken@2753
  1685
    }
slouken@2753
  1686
    return renderer->QueryTexturePixels(renderer, texture, pixels, pitch);
slouken@1895
  1687
}
slouken@1895
  1688
slouken@1895
  1689
int
slouken@1895
  1690
SDL_SetTexturePalette(SDL_TextureID textureID, const SDL_Color * colors,
slouken@2753
  1691
                      int firstcolor, int ncolors)
slouken@1895
  1692
{
slouken@2753
  1693
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1694
    SDL_Renderer *renderer;
slouken@1895
  1695
slouken@2753
  1696
    if (!texture) {
slouken@2753
  1697
        return -1;
slouken@2753
  1698
    }
slouken@2753
  1699
    renderer = texture->renderer;
slouken@2753
  1700
    if (!renderer->SetTexturePalette) {
slouken@2810
  1701
        SDL_Unsupported();
slouken@2753
  1702
        return -1;
slouken@2753
  1703
    }
slouken@2753
  1704
    return renderer->SetTexturePalette(renderer, texture, colors, firstcolor,
slouken@2753
  1705
                                       ncolors);
slouken@1895
  1706
}
slouken@1895
  1707
slouken@1895
  1708
int
slouken@1895
  1709
SDL_GetTexturePalette(SDL_TextureID textureID, SDL_Color * colors,
slouken@2753
  1710
                      int firstcolor, int ncolors)
slouken@1895
  1711
{
slouken@2753
  1712
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1713
    SDL_Renderer *renderer;
slouken@1895
  1714
slouken@2753
  1715
    if (!texture) {
slouken@2753
  1716
        return -1;
slouken@2753
  1717
    }
slouken@2753
  1718
    renderer = texture->renderer;
slouken@2753
  1719
    if (!renderer->GetTexturePalette) {
slouken@2810
  1720
        SDL_Unsupported();
slouken@2753
  1721
        return -1;
slouken@2753
  1722
    }
slouken@2753
  1723
    return renderer->GetTexturePalette(renderer, texture, colors, firstcolor,
slouken@2753
  1724
                                       ncolors);
slouken@1895
  1725
}
slouken@1895
  1726
slouken@1895
  1727
int
slouken@1985
  1728
SDL_SetTextureColorMod(SDL_TextureID textureID, Uint8 r, Uint8 g, Uint8 b)
slouken@1985
  1729
{
slouken@2753
  1730
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1731
    SDL_Renderer *renderer;
slouken@1985
  1732
slouken@2753
  1733
    if (!texture) {
slouken@2753
  1734
        return -1;
slouken@2753
  1735
    }
slouken@2753
  1736
    renderer = texture->renderer;
slouken@2753
  1737
    if (!renderer->SetTextureColorMod) {
slouken@2810
  1738
        SDL_Unsupported();
slouken@2753
  1739
        return -1;
slouken@2753
  1740
    }
slouken@2753
  1741
    if (r < 255 || g < 255 || b < 255) {
slouken@2753
  1742
        texture->modMode |= SDL_TEXTUREMODULATE_COLOR;
slouken@2753
  1743
    } else {
slouken@2753
  1744
        texture->modMode &= ~SDL_TEXTUREMODULATE_COLOR;
slouken@2753
  1745
    }
slouken@2753
  1746
    texture->r = r;
slouken@2753
  1747
    texture->g = g;
slouken@2753
  1748
    texture->b = b;
slouken@2753
  1749
    return renderer->SetTextureColorMod(renderer, texture);
slouken@1985
  1750
}
slouken@1985
  1751
slouken@1985
  1752
int
slouken@1985
  1753
SDL_GetTextureColorMod(SDL_TextureID textureID, Uint8 * r, Uint8 * g,
slouken@2753
  1754
                       Uint8 * b)
slouken@1985
  1755
{
slouken@2753
  1756
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1757
    SDL_Renderer *renderer;
slouken@1985
  1758
slouken@2753
  1759
    if (!texture) {
slouken@2753
  1760
        return -1;
slouken@2753
  1761
    }
slouken@2753
  1762
    renderer = texture->renderer;
slouken@2753
  1763
    if (r) {
slouken@2753
  1764
        *r = texture->r;
slouken@2753
  1765
    }
slouken@2753
  1766
    if (g) {
slouken@2753
  1767
        *g = texture->g;
slouken@2753
  1768
    }
slouken@2753
  1769
    if (b) {
slouken@2753
  1770
        *b = texture->b;
slouken@2753
  1771
    }
slouken@2753
  1772
    return 0;
slouken@1985
  1773
}
slouken@1985
  1774
slouken@1985
  1775
int
slouken@1985
  1776
SDL_SetTextureAlphaMod(SDL_TextureID textureID, Uint8 alpha)
slouken@1985
  1777
{
slouken@2753
  1778
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1779
    SDL_Renderer *renderer;
slouken@1985
  1780
slouken@2753
  1781
    if (!texture) {
slouken@2753
  1782
        return -1;
slouken@2753
  1783
    }
slouken@2753
  1784
    renderer = texture->renderer;
slouken@2753
  1785
    if (!renderer->SetTextureAlphaMod) {
slouken@2810
  1786
        SDL_Unsupported();
slouken@2753
  1787
        return -1;
slouken@2753
  1788
    }
slouken@2753
  1789
    if (alpha < 255) {
slouken@2753
  1790
        texture->modMode |= SDL_TEXTUREMODULATE_ALPHA;
slouken@2753
  1791
    } else {
slouken@2753
  1792
        texture->modMode &= ~SDL_TEXTUREMODULATE_ALPHA;
slouken@2753
  1793
    }
slouken@2753
  1794
    texture->a = alpha;
slouken@2753
  1795
    return renderer->SetTextureAlphaMod(renderer, texture);
slouken@1985
  1796
}
slouken@1985
  1797
slouken@1985
  1798
int
slouken@1985
  1799
SDL_GetTextureAlphaMod(SDL_TextureID textureID, Uint8 * alpha)
slouken@1985
  1800
{
slouken@2753
  1801
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  1802
slouken@2753
  1803
    if (!texture) {
slouken@2753
  1804
        return -1;
slouken@2753
  1805
    }
slouken@2753
  1806
    if (alpha) {
slouken@2753
  1807
        *alpha = texture->a;
slouken@2753
  1808
    }
slouken@2753
  1809
    return 0;
slouken@1985
  1810
}
slouken@1985
  1811
slouken@1985
  1812
int
slouken@1985
  1813
SDL_SetTextureBlendMode(SDL_TextureID textureID, int blendMode)
slouken@1985
  1814
{
slouken@2753
  1815
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1816
    SDL_Renderer *renderer;
slouken@1985
  1817
slouken@2753
  1818
    if (!texture) {
slouken@2753
  1819
        return -1;
slouken@2753
  1820
    }
slouken@2753
  1821
    renderer = texture->renderer;
slouken@2753
  1822
    if (!renderer->SetTextureBlendMode) {
slouken@2810
  1823
        SDL_Unsupported();
slouken@2753
  1824
        return -1;
slouken@2753
  1825
    }
slouken@2753
  1826
    texture->blendMode = blendMode;
slouken@2753
  1827
    return renderer->SetTextureBlendMode(renderer, texture);
slouken@1985
  1828
}
slouken@1985
  1829
slouken@1985
  1830
int
slouken@1985
  1831
SDL_GetTextureBlendMode(SDL_TextureID textureID, int *blendMode)
slouken@1985
  1832
{
slouken@2753
  1833
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  1834
slouken@2753
  1835
    if (!texture) {
slouken@2753
  1836
        return -1;
slouken@2753
  1837
    }
slouken@2753
  1838
    if (blendMode) {
slouken@2753
  1839
        *blendMode = texture->blendMode;
slouken@2753
  1840
    }
slouken@2753
  1841
    return 0;
slouken@1985
  1842
}
slouken@1985
  1843
slouken@1985
  1844
int
slouken@1985
  1845
SDL_SetTextureScaleMode(SDL_TextureID textureID, int scaleMode)
slouken@1985
  1846
{
slouken@2753
  1847
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1848
    SDL_Renderer *renderer;
slouken@1985
  1849
slouken@2753
  1850
    if (!texture) {
slouken@2753
  1851
        return -1;
slouken@2753
  1852
    }
slouken@2753
  1853
    renderer = texture->renderer;
slouken@2753
  1854
    if (!renderer->SetTextureScaleMode) {
slouken@2810
  1855
        SDL_Unsupported();
slouken@2753
  1856
        return -1;
slouken@2753
  1857
    }
slouken@2753
  1858
    texture->scaleMode = scaleMode;
slouken@2753
  1859
    return renderer->SetTextureScaleMode(renderer, texture);
slouken@1985
  1860
}
slouken@1985
  1861
slouken@1985
  1862
int
slouken@1985
  1863
SDL_GetTextureScaleMode(SDL_TextureID textureID, int *scaleMode)
slouken@1985
  1864
{
slouken@2753
  1865
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  1866
slouken@2753
  1867
    if (!texture) {
slouken@2753
  1868
        return -1;
slouken@2753
  1869
    }
slouken@2753
  1870
    if (scaleMode) {
slouken@2753
  1871
        *scaleMode = texture->scaleMode;
slouken@2753
  1872
    }
slouken@2753
  1873
    return 0;
slouken@1985
  1874
}
slouken@1985
  1875
slouken@1985
  1876
int
slouken@1895
  1877
SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect * rect,
slouken@2753
  1878
                  const void *pixels, int pitch)
slouken@1895
  1879
{
slouken@2753
  1880
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1881
    SDL_Renderer *renderer;
slouken@2753
  1882
    SDL_Rect full_rect;
slouken@1895
  1883
slouken@2753
  1884
    if (!texture) {
slouken@2753
  1885
        return -1;
slouken@2753
  1886
    }
slouken@2753
  1887
    renderer = texture->renderer;
slouken@2753
  1888
    if (!renderer->UpdateTexture) {
slouken@2810
  1889
        SDL_Unsupported();
slouken@2753
  1890
        return -1;
slouken@2753
  1891
    }
slouken@2753
  1892
    if (!rect) {
slouken@2753
  1893
        full_rect.x = 0;
slouken@2753
  1894
        full_rect.y = 0;
slouken@2753
  1895
        full_rect.w = texture->w;
slouken@2753
  1896
        full_rect.h = texture->h;
slouken@2753
  1897
        rect = &full_rect;
slouken@2753
  1898
    }
slouken@2753
  1899
    return renderer->UpdateTexture(renderer, texture, rect, pixels, pitch);
slouken@1895
  1900
}
slouken@1895
  1901
slouken@1895
  1902
int
slouken@1895
  1903
SDL_LockTexture(SDL_TextureID textureID, const SDL_Rect * rect, int markDirty,
slouken@2753
  1904
                void **pixels, int *pitch)
slouken@1895
  1905
{
slouken@2753
  1906
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1907
    SDL_Renderer *renderer;
slouken@2753
  1908
    SDL_Rect full_rect;
slouken@1895
  1909
slouken@2753
  1910
    if (!texture) {
slouken@2753
  1911
        return -1;
slouken@2753
  1912
    }
slouken@2753
  1913
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  1914
        SDL_SetError("SDL_LockTexture(): texture must be streaming");
slouken@2753
  1915
        return -1;
slouken@2753
  1916
    }
slouken@2753
  1917
    renderer = texture->renderer;
slouken@2753
  1918
    if (!renderer->LockTexture) {
slouken@2810
  1919
        SDL_Unsupported();
slouken@2753
  1920
        return -1;
slouken@2753
  1921
    }
slouken@2753
  1922
    if (!rect) {
slouken@2753
  1923
        full_rect.x = 0;
slouken@2753
  1924
        full_rect.y = 0;
slouken@2753
  1925
        full_rect.w = texture->w;
slouken@2753
  1926
        full_rect.h = texture->h;
slouken@2753
  1927
        rect = &full_rect;
slouken@2753
  1928
    }
slouken@2753
  1929
    return renderer->LockTexture(renderer, texture, rect, markDirty, pixels,
slouken@2753
  1930
                                 pitch);
slouken@1895
  1931
}
slouken@1895
  1932
slouken@1895
  1933
void
slouken@1895
  1934
SDL_UnlockTexture(SDL_TextureID textureID)
slouken@1895
  1935
{
slouken@2753
  1936
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1937
    SDL_Renderer *renderer;
slouken@1895
  1938
slouken@2753
  1939
    if (!texture) {
slouken@2753
  1940
        return;
slouken@2753
  1941
    }
slouken@2753
  1942
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  1943
        return;
slouken@2753
  1944
    }
slouken@2753
  1945
    renderer = texture->renderer;
slouken@2753
  1946
    if (!renderer->UnlockTexture) {
slouken@2753
  1947
        return;
slouken@2753
  1948
    }
slouken@2753
  1949
    renderer->UnlockTexture(renderer, texture);
slouken@1895
  1950
}
slouken@1895
  1951
slouken@1895
  1952
void
slouken@1895
  1953
SDL_DirtyTexture(SDL_TextureID textureID, int numrects,
slouken@2753
  1954
                 const SDL_Rect * rects)
slouken@1895
  1955
{
slouken@2753
  1956
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1957
    SDL_Renderer *renderer;
slouken@1895
  1958
slouken@2753
  1959
    if (!texture) {
slouken@2753
  1960
        return;
slouken@2753
  1961
    }
slouken@2753
  1962
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  1963
        return;
slouken@2753
  1964
    }
slouken@2753
  1965
    renderer = texture->renderer;
slouken@2753
  1966
    if (!renderer->DirtyTexture) {
slouken@2753
  1967
        return;
slouken@2753
  1968
    }
slouken@2753
  1969
    renderer->DirtyTexture(renderer, texture, numrects, rects);
slouken@1895
  1970
}
slouken@1895
  1971
slouken@1895
  1972
int
slouken@1985
  1973
SDL_RenderFill(Uint8 r, Uint8 g, Uint8 b, Uint8 a, const SDL_Rect * rect)
slouken@1895
  1974
{
slouken@2753
  1975
    SDL_Renderer *renderer;
slouken@2753
  1976
    SDL_Window *window;
slouken@2753
  1977
    SDL_Rect real_rect;
slouken@1895
  1978
slouken@2753
  1979
    if (!_this) {
slouken@2753
  1980
        SDL_UninitializedVideo();
slouken@2753
  1981
        return -1;
slouken@2753
  1982
    }
slouken@2753
  1983
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  1984
    if (!renderer) {
slouken@2810
  1985
        return -1;
slouken@2810
  1986
    }
slouken@2814
  1987
    if (!renderer->RenderFill) {
slouken@2810
  1988
        SDL_Unsupported();
slouken@2753
  1989
        return -1;
slouken@2753
  1990
    }
slouken@2753
  1991
    window = SDL_GetWindowFromID(renderer->window);
slouken@2753
  1992
    real_rect.x = 0;
slouken@2753
  1993
    real_rect.y = 0;
slouken@2753
  1994
    real_rect.w = window->w;
slouken@2753
  1995
    real_rect.h = window->h;
slouken@2753
  1996
    if (rect) {
slouken@2753
  1997
        if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
slouken@2753
  1998
            return 0;
slouken@2753
  1999
        }
slouken@2753
  2000
    }
slouken@2753
  2001
    return renderer->RenderFill(renderer, r, g, b, a, &real_rect);
slouken@1895
  2002
}
slouken@1895
  2003
slouken@1895
  2004
int
slouken@1895
  2005
SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect * srcrect,
slouken@2753
  2006
               const SDL_Rect * dstrect)
slouken@1895
  2007
{
slouken@2753
  2008
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2009
    SDL_Renderer *renderer;
slouken@2753
  2010
    SDL_Window *window;
slouken@2753
  2011
    SDL_Rect real_srcrect;
slouken@2753
  2012
    SDL_Rect real_dstrect;
slouken@1895
  2013
slouken@2753
  2014
    if (!texture || texture->renderer != SDL_CurrentDisplay.current_renderer) {
slouken@2753
  2015
        return -1;
slouken@2753
  2016
    }
slouken@2753
  2017
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  2018
    if (!renderer) {
slouken@2810
  2019
        return -1;
slouken@2810
  2020
    }
slouken@2810
  2021
    if (!renderer->RenderCopy) {
slouken@2810
  2022
        SDL_Unsupported();
slouken@2753
  2023
        return -1;
slouken@2753
  2024
    }
slouken@2753
  2025
    window = SDL_GetWindowFromID(renderer->window);
slouken@2753
  2026
    if (srcrect) {
slouken@2753
  2027
        real_srcrect = *srcrect;
slouken@2753
  2028
    } else {
slouken@2753
  2029
        real_srcrect.x = 0;
slouken@2753
  2030
        real_srcrect.y = 0;
slouken@2753
  2031
        real_srcrect.w = texture->w;
slouken@2753
  2032
        real_srcrect.h = texture->h;
slouken@2753
  2033
    }
slouken@2753
  2034
    if (dstrect) {
slouken@2753
  2035
        real_dstrect = *dstrect;
slouken@2753
  2036
    } else {
slouken@2753
  2037
        real_dstrect.x = 0;
slouken@2753
  2038
        real_dstrect.y = 0;
slouken@2753
  2039
        real_dstrect.w = window->w;
slouken@2753
  2040
        real_dstrect.h = window->h;
slouken@2753
  2041
    }
slouken@1895
  2042
slouken@2753
  2043
    return renderer->RenderCopy(renderer, texture, &real_srcrect,
slouken@2753
  2044
                                &real_dstrect);
slouken@1895
  2045
}
slouken@1895
  2046
slouken@1895
  2047
void
slouken@1895
  2048
SDL_RenderPresent(void)
slouken@1895
  2049
{
slouken@2753
  2050
    SDL_Renderer *renderer;
slouken@1895
  2051
slouken@2753
  2052
    if (!_this) {
slouken@2753
  2053
        SDL_UninitializedVideo();
slouken@2753
  2054
        return;
slouken@2753
  2055
    }
slouken@2753
  2056
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2753
  2057
    if (!renderer || !renderer->RenderPresent) {
slouken@2753
  2058
        return;
slouken@2753
  2059
    }
slouken@2753
  2060
    renderer->RenderPresent(renderer);
slouken@1895
  2061
}
slouken@1895
  2062
slouken@1895
  2063
void
slouken@1895
  2064
SDL_DestroyTexture(SDL_TextureID textureID)
slouken@1895
  2065
{
slouken@2753
  2066
    int hash;
slouken@2753
  2067
    SDL_Texture *prev, *texture;
slouken@2753
  2068
    SDL_Renderer *renderer;
slouken@1895
  2069
slouken@2753
  2070
    if (!_this) {
slouken@2753
  2071
        SDL_UninitializedVideo();
slouken@2753
  2072
        return;
slouken@2753
  2073
    }
slouken@2753
  2074
    /* Look up the texture in the hash table */
slouken@2753
  2075
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  2076
    prev = NULL;
slouken@2753
  2077
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@2753
  2078
         prev = texture, texture = texture->next) {
slouken@2753
  2079
        if (texture->id == textureID) {
slouken@2753
  2080
            break;
slouken@2753
  2081
        }
slouken@2753
  2082
    }
slouken@2753
  2083
    if (!texture) {
slouken@2753
  2084
        return;
slouken@2753
  2085
    }
slouken@2753
  2086
    /* Unlink the texture from the list */
slouken@2753
  2087
    if (prev) {
slouken@2753
  2088
        prev->next = texture->next;
slouken@2753
  2089
    } else {
slouken@2753
  2090
        SDL_CurrentDisplay.textures[hash] = texture->next;
slouken@2753
  2091
    }
slouken@1895
  2092
slouken@2753
  2093
    /* Free the texture */
slouken@2753
  2094
    renderer = texture->renderer;
slouken@2753
  2095
    renderer->DestroyTexture(renderer, texture);
slouken@2753
  2096
    SDL_free(texture);
slouken@1895
  2097
}
slouken@1895
  2098
slouken@1895
  2099
void
slouken@1895
  2100
SDL_DestroyRenderer(SDL_WindowID windowID)
slouken@1895
  2101
{
slouken@2753
  2102
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  2103
    SDL_Renderer *renderer;
slouken@2753
  2104
    int i;
slouken@1895
  2105
slouken@2753
  2106
    if (!window) {
slouken@2753
  2107
        return;
slouken@2753
  2108
    }
slouken@2753
  2109
    renderer = window->renderer;
slouken@2753
  2110
    if (!renderer) {
slouken@2753
  2111
        return;
slouken@2753
  2112
    }
slouken@2753
  2113
    /* Free existing textures for this renderer */
slouken@2753
  2114
    for (i = 0; i < SDL_arraysize(SDL_CurrentDisplay.textures); ++i) {
slouken@2753
  2115
        SDL_Texture *texture;
slouken@2753
  2116
        SDL_Texture *prev = NULL;
slouken@2753
  2117
        SDL_Texture *next;
slouken@2753
  2118
        for (texture = SDL_CurrentDisplay.textures[i]; texture;
slouken@2753
  2119
             texture = next) {
slouken@2753
  2120
            next = texture->next;
slouken@2753
  2121
            if (texture->renderer == renderer) {
slouken@2753
  2122
                if (prev) {
slouken@2753
  2123
                    prev->next = next;
slouken@2753
  2124
                } else {
slouken@2753
  2125
                    SDL_CurrentDisplay.textures[i] = next;
slouken@2753
  2126
                }
slouken@2753
  2127
                renderer->DestroyTexture(renderer, texture);
slouken@2753
  2128
                SDL_free(texture);
slouken@2753
  2129
            } else {
slouken@2753
  2130
                prev = texture;
slouken@2753
  2131
            }
slouken@2753
  2132
        }
slouken@2753
  2133
    }
slouken@1895
  2134
slouken@2753
  2135
    /* Free the renderer instance */
slouken@2753
  2136
    renderer->DestroyRenderer(renderer);
slouken@1895
  2137
slouken@2753
  2138
    /* Clear references */
slouken@2753
  2139
    window->renderer = NULL;
slouken@2753
  2140
    if (SDL_CurrentDisplay.current_renderer == renderer) {
slouken@2753
  2141
        SDL_CurrentDisplay.current_renderer = NULL;
slouken@2753
  2142
    }
slouken@1895
  2143
}
slouken@1895
  2144
slouken@1895
  2145
void
slouken@1895
  2146
SDL_VideoQuit(void)
slouken@1895
  2147
{
slouken@2753
  2148
    int i, j;
slouken@1895
  2149
slouken@2753
  2150
    if (!_this) {
slouken@2753
  2151
        return;
slouken@2753
  2152
    }
slouken@2753
  2153
    /* Halt event processing before doing anything else */
slouken@2753
  2154
    SDL_StopEventLoop();
slouken@1895
  2155
slouken@2753
  2156
    /* Clean up the system video */
slouken@2753
  2157
    for (i = _this->num_displays; i--;) {
slouken@2753
  2158
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2159
        for (j = display->num_windows; j--;) {
slouken@2753
  2160
            SDL_DestroyWindow(display->windows[i].id);
slouken@2753
  2161
        }
slouken@2753
  2162
        if (display->windows) {
slouken@2753
  2163
            SDL_free(display->windows);
slouken@2753
  2164
            display->windows = NULL;
slouken@2753
  2165
        }
slouken@2753
  2166
        display->num_windows = 0;
slouken@2753
  2167
        if (display->render_drivers) {
slouken@2753
  2168
            SDL_free(display->render_drivers);
slouken@2753
  2169
            display->render_drivers = NULL;
slouken@2753
  2170
        }
slouken@2753
  2171
        display->num_render_drivers = 0;
slouken@2753
  2172
    }
slouken@2753
  2173
    _this->VideoQuit(_this);
slouken@1895
  2174
slouken@2753
  2175
    for (i = _this->num_displays; i--;) {
slouken@2753
  2176
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2177
        for (j = display->num_display_modes; j--;) {
slouken@2753
  2178
            if (display->display_modes[j].driverdata) {
slouken@2753
  2179
                SDL_free(display->display_modes[j].driverdata);
slouken@2753
  2180
                display->display_modes[j].driverdata = NULL;
slouken@2753
  2181
            }
slouken@2753
  2182
        }
slouken@2753
  2183
        if (display->display_modes) {
slouken@2753
  2184
            SDL_free(display->display_modes);
slouken@2753
  2185
            display->display_modes = NULL;
slouken@2753
  2186
        }
slouken@2753
  2187
        if (display->desktop_mode.driverdata) {
slouken@2753
  2188
            SDL_free(display->desktop_mode.driverdata);
slouken@2753
  2189
            display->desktop_mode.driverdata = NULL;
slouken@2753
  2190
        }
slouken@2753
  2191
        if (display->palette) {
slouken@2753
  2192
            SDL_FreePalette(display->palette);
slouken@2753
  2193
            display->palette = NULL;
slouken@2753
  2194
        }
slouken@2753
  2195
        if (display->gamma) {
slouken@2753
  2196
            SDL_free(display->gamma);
slouken@2753
  2197
            display->gamma = NULL;
slouken@2753
  2198
        }
slouken@2753
  2199
        if (display->driverdata) {
slouken@2753
  2200
            SDL_free(display->driverdata);
slouken@2753
  2201
            display->driverdata = NULL;
slouken@2753
  2202
        }
slouken@2753
  2203
    }
slouken@2753
  2204
    if (_this->displays) {
slouken@2753
  2205
        SDL_free(_this->displays);
slouken@2753
  2206
        _this->displays = NULL;
slouken@2753
  2207
    }
slouken@2753
  2208
    _this->free(_this);
slouken@2753
  2209
    _this = NULL;
slouken@0
  2210
}
slouken@0
  2211
slouken@1895
  2212
int
slouken@1895
  2213
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2214
{
slouken@2753
  2215
    int retval;
slouken@0
  2216
slouken@2753
  2217
    if (!_this) {
slouken@2753
  2218
        SDL_UninitializedVideo();
slouken@2753
  2219
        return -1;
slouken@2753
  2220
    }
slouken@2753
  2221
    if (_this->GL_LoadLibrary) {
slouken@2753
  2222
        retval = _this->GL_LoadLibrary(_this, path);
slouken@2753
  2223
    } else {
slouken@2753
  2224
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2225
        retval = -1;
slouken@2753
  2226
    }
slouken@2753
  2227
    return (retval);
slouken@0
  2228
}
slouken@0
  2229
slouken@2753
  2230
void *
slouken@1895
  2231
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2232
{
slouken@2753
  2233
    void *func;
slouken@0
  2234
slouken@2753
  2235
    if (!_this) {
slouken@2753
  2236
        SDL_UninitializedVideo();
slouken@2753
  2237
        return NULL;
slouken@2753
  2238
    }
slouken@2753
  2239
    func = NULL;
slouken@2753
  2240
    if (_this->GL_GetProcAddress) {
slouken@2753
  2241
        if (_this->gl_config.driver_loaded) {
slouken@2753
  2242
            func = _this->GL_GetProcAddress(_this, proc);
slouken@2753
  2243
        } else {
slouken@2753
  2244
            SDL_SetError("No GL driver has been loaded");
slouken@2753
  2245
        }
slouken@2753
  2246
    } else {
slouken@2753
  2247
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2248
    }
slouken@2753
  2249
    return func;
slouken@0
  2250
}
slouken@0
  2251
slouken@1926
  2252
SDL_bool
slouken@1926
  2253
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2254
{
hfutrell@2745
  2255
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2256
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@2753
  2257
    const char *extensions;
slouken@2753
  2258
    const char *start;
slouken@2753
  2259
    const char *where, *terminator;
slouken@1926
  2260
slouken@2753
  2261
    /* Extension names should not have spaces. */
slouken@2753
  2262
    where = SDL_strchr(extension, ' ');
slouken@2753
  2263
    if (where || *extension == '\0') {
slouken@2753
  2264
        return SDL_FALSE;
slouken@2753
  2265
    }
slouken@2753
  2266
    /* See if there's an environment variable override */
slouken@2753
  2267
    start = SDL_getenv(extension);
slouken@2753
  2268
    if (start && *start == '0') {
slouken@2753
  2269
        return SDL_FALSE;
slouken@2753
  2270
    }
slouken@2753
  2271
    /* Lookup the available extensions */
slouken@2753
  2272
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@2753
  2273
    if (glGetStringFunc) {
slouken@2753
  2274
        extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@2753
  2275
    } else {
slouken@2753
  2276
        extensions = NULL;
slouken@2753
  2277
    }
slouken@2753
  2278
    if (!extensions) {
slouken@2753
  2279
        return SDL_FALSE;
slouken@2753
  2280
    }
slouken@2753
  2281
    /*
slouken@2753
  2282
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@2753
  2283
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@2753
  2284
     */
slouken@1926
  2285
slouken@2753
  2286
    start = extensions;
slouken@1926
  2287
slouken@2753
  2288
    for (;;) {
slouken@2753
  2289
        where = SDL_strstr(start, extension);
slouken@2753
  2290
        if (!where)
slouken@2753
  2291
            break;
slouken@1926
  2292
slouken@2753
  2293
        terminator = where + SDL_strlen(extension);
slouken@2753
  2294
        if (where == start || *(where - 1) == ' ')
slouken@2753
  2295
            if (*terminator == ' ' || *terminator == '\0')
slouken@2753
  2296
                return SDL_TRUE;
slouken@1926
  2297
slouken@2753
  2298
        start = terminator;
slouken@2753
  2299
    }
slouken@2753
  2300
    return SDL_FALSE;
slouken@1926
  2301
#else
slouken@2753
  2302
    return SDL_FALSE;
slouken@1926
  2303
#endif
slouken@1926
  2304
}
slouken@1926
  2305
slouken@1895
  2306
int
slouken@1895
  2307
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2308
{
hfutrell@2745
  2309
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2310
    int retval;
slouken@0
  2311
slouken@2753
  2312
    if (!_this) {
slouken@2753
  2313
        SDL_UninitializedVideo();
slouken@2753
  2314
        return -1;
slouken@2753
  2315
    }
slouken@2753
  2316
    retval = 0;
slouken@2753
  2317
    switch (attr) {
slouken@2753
  2318
    case SDL_GL_RED_SIZE:
slouken@2753
  2319
        _this->gl_config.red_size = value;
slouken@2753
  2320
        break;
slouken@2753
  2321
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2322
        _this->gl_config.green_size = value;
slouken@2753
  2323
        break;
slouken@2753
  2324
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2325
        _this->gl_config.blue_size = value;
slouken@2753
  2326
        break;
slouken@2753
  2327
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2328
        _this->gl_config.alpha_size = value;
slouken@2753
  2329
        break;
slouken@2753
  2330
    case SDL_GL_DOUBLEBUFFER:
slouken@2753
  2331
        _this->gl_config.double_buffer = value;
slouken@2753
  2332
        break;
slouken@2753
  2333
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2334
        _this->gl_config.buffer_size = value;
slouken@2753
  2335
        break;
slouken@2753
  2336
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2337
        _this->gl_config.depth_size = value;
slouken@2753
  2338
        break;
slouken@2753
  2339
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2340
        _this->gl_config.stencil_size = value;
slouken@2753
  2341
        break;
slouken@2753
  2342
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2343
        _this->gl_config.accum_red_size = value;
slouken@2753
  2344
        break;
slouken@2753
  2345
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2346
        _this->gl_config.accum_green_size = value;
slouken@2753
  2347
        break;
slouken@2753
  2348
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2349
        _this->gl_config.accum_blue_size = value;
slouken@2753
  2350
        break;
slouken@2753
  2351
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2352
        _this->gl_config.accum_alpha_size = value;
slouken@2753
  2353
        break;
slouken@2753
  2354
    case SDL_GL_STEREO:
slouken@2753
  2355
        _this->gl_config.stereo = value;
slouken@2753
  2356
        break;
slouken@2753
  2357
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@2753
  2358
        _this->gl_config.multisamplebuffers = value;
slouken@2753
  2359
        break;
slouken@2753
  2360
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@2753
  2361
        _this->gl_config.multisamplesamples = value;
slouken@2753
  2362
        break;
slouken@2753
  2363
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2364
        _this->gl_config.accelerated = value;
slouken@2753
  2365
        break;
slouken@2753
  2366
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2367
        _this->gl_config.retained_backing = value;
slouken@2753
  2368
        break;
slouken@2753
  2369
    default:
slouken@2753
  2370
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2371
        retval = -1;
slouken@2753
  2372
        break;
slouken@2753
  2373
    }
slouken@2753
  2374
    return retval;
slouken@1936
  2375
#else
slouken@2753
  2376
    SDL_Unsupported();
slouken@2753
  2377
    return -1;
slouken@2753
  2378
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2379
}
slouken@0
  2380
slouken@1895
  2381
int
slouken@1936
  2382
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2383
{
hfutrell@2745
  2384
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2385
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@2753
  2386
    GLenum attrib = 0;
slouken@1912
  2387
slouken@2753
  2388
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@2753
  2389
    if (!glGetIntegervFunc) {
slouken@2753
  2390
        return -1;
slouken@2753
  2391
    }
slouken@2753
  2392
    switch (attr) {
slouken@2753
  2393
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2394
        *value = _this->gl_config.retained_backing;
slouken@2753
  2395
        return 0;
slouken@2753
  2396
    case SDL_GL_RED_SIZE:
slouken@2753
  2397
        attrib = GL_RED_BITS;
slouken@2753
  2398
        break;
slouken@2753
  2399
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2400
        attrib = GL_BLUE_BITS;
slouken@2753
  2401
        break;
slouken@2753
  2402
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2403
        attrib = GL_GREEN_BITS;
slouken@2753
  2404
        break;
slouken@2753
  2405
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2406
        attrib = GL_ALPHA_BITS;
slouken@2753
  2407
        break;
slouken@2753
  2408
    case SDL_GL_DOUBLEBUFFER:
hfutrell@2745
  2409
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2410
        attrib = GL_DOUBLEBUFFER;
slouken@2753
  2411
        break;
hfutrell@2745
  2412
#else
slouken@2753
  2413
        /*
slouken@2753
  2414
         * I believe double buffering is the only option in OpenGL ES
slouken@2753
  2415
         * -- in any case, GL_DOUBLEBUFFER doesn't exist
slouken@2753
  2416
         */
slouken@2753
  2417
        *value = 1;
slouken@2753
  2418
        return 0;
hfutrell@2745
  2419
#endif
slouken@2753
  2420
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2421
        attrib = GL_DEPTH_BITS;
slouken@2753
  2422
        break;
slouken@2753
  2423
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2424
        attrib = GL_STENCIL_BITS;
slouken@2753
  2425
        break;
hfutrell@2745
  2426
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2427
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2428
        attrib = GL_ACCUM_RED_BITS;
slouken@2753
  2429
        break;
slouken@2753
  2430
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2431
        attrib = GL_ACCUM_GREEN_BITS;
slouken@2753
  2432
        break;
slouken@2753
  2433
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2434
        attrib = GL_ACCUM_BLUE_BITS;
slouken@2753
  2435
        break;
slouken@2753
  2436
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2437
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@2753
  2438
        break;
slouken@2753
  2439
    case SDL_GL_STEREO:
slouken@2753
  2440
        attrib = GL_STEREO;
slouken@2753
  2441
        break;
hfutrell@2745
  2442
#else
slouken@2753
  2443
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2444
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2445
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2446
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2447
    case SDL_GL_STEREO:
slouken@2753
  2448
        /* none of these are supported in OpenGL ES */
slouken@2753
  2449
        *value = 0;
slouken@2753
  2450
        return 0;
hfutrell@2745
  2451
#endif
slouken@2753
  2452
    case SDL_GL_MULTISAMPLEBUFFERS:
hfutrell@2745
  2453
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2454
        attrib = GL_SAMPLE_BUFFERS_ARB;
hfutrell@2745
  2455
#else
slouken@2753
  2456
        attrib = GL_SAMPLE_BUFFERS;
hfutrell@2745
  2457
#endif
slouken@2753
  2458
        break;
slouken@2753
  2459
    case SDL_GL_MULTISAMPLESAMPLES:
hfutrell@2745
  2460
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2461
        attrib = GL_SAMPLES_ARB;
hfutrell@2745
  2462
#else
slouken@2753
  2463
        attrib = GL_SAMPLES;
hfutrell@2745
  2464
#endif
slouken@2753
  2465
        break;
slouken@2753
  2466
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2467
        {
slouken@2753
  2468
            GLint bits = 0;
slouken@2753
  2469
            GLint component;
slouken@1936
  2470
slouken@2753
  2471
            /*
slouken@2753
  2472
             * there doesn't seem to be a single flag in OpenGL
slouken@2753
  2473
             * for this!
slouken@2753
  2474
             */
slouken@2753
  2475
            glGetIntegervFunc(GL_RED_BITS, &component);
slouken@2753
  2476
            bits += component;
slouken@2753
  2477
            glGetIntegervFunc(GL_GREEN_BITS, &component);
slouken@2753
  2478
            bits += component;
slouken@2753
  2479
            glGetIntegervFunc(GL_BLUE_BITS, &component);
slouken@2753
  2480
            bits += component;
slouken@2753
  2481
            glGetIntegervFunc(GL_ALPHA_BITS, &component);
slouken@2753
  2482
            bits += component;
slouken@1936
  2483
slouken@2753
  2484
            *value = bits;
slouken@2753
  2485
            return 0;
slouken@2753
  2486
        }
slouken@2753
  2487
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2488
        {
slouken@2753
  2489
            /* FIXME: How do we get this information? */
slouken@2753
  2490
            *value = (_this->gl_config.accelerated != 0);
slouken@2753
  2491
            return 0;
slouken@2753
  2492
        }
slouken@2753
  2493
    default:
slouken@2753
  2494
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2495
        return -1;
slouken@2753
  2496
    }
slouken@0
  2497
slouken@2753
  2498
    glGetIntegervFunc(attrib, (GLint *) value);
slouken@2753
  2499
    return 0;
slouken@1936
  2500
#else
slouken@2753
  2501
    SDL_Unsupported();
slouken@2753
  2502
    return -1;
slouken@2753
  2503
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2504
}
slouken@0
  2505
slouken@1912
  2506
SDL_GLContext
slouken@1912
  2507
SDL_GL_CreateContext(SDL_WindowID windowID)
slouken@1912
  2508
{
slouken@2753
  2509
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2510
slouken@2753
  2511
    if (!window) {
slouken@2753
  2512
        return NULL;
slouken@2753
  2513
    }
slouken@2753
  2514
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2515
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2516
        return NULL;
slouken@2753
  2517
    }
slouken@2753
  2518
    return _this->GL_CreateContext(_this, window);
slouken@1912
  2519
}
slouken@1912
  2520
slouken@1912
  2521
int
slouken@1912
  2522
SDL_GL_MakeCurrent(SDL_WindowID windowID, SDL_GLContext context)
slouken@1912
  2523
{
slouken@2753
  2524
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2525
slouken@2753
  2526
    if (window && !(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2527
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2528
        return -1;
slouken@2753
  2529
    }
slouken@2753
  2530
    if (!context) {
slouken@2753
  2531
        window = NULL;
slouken@2753
  2532
    }
slouken@2753
  2533
    return _this->GL_MakeCurrent(_this, window, context);
slouken@1912
  2534
}
slouken@1912
  2535
slouken@1912
  2536
int
slouken@1912
  2537
SDL_GL_SetSwapInterval(int interval)
slouken@1912
  2538
{
slouken@2753
  2539
    if (!_this) {
slouken@2753
  2540
        SDL_UninitializedVideo();
slouken@2753
  2541
        return -1;
slouken@2753
  2542
    }
slouken@2753
  2543
    if (_this->GL_SetSwapInterval) {
slouken@2753
  2544
        return _this->GL_SetSwapInterval(_this, interval);
slouken@2753
  2545
    } else {
slouken@2753
  2546
        SDL_SetError("Setting the swap interval is not supported");
slouken@2753
  2547
        return -1;
slouken@2753
  2548
    }
slouken@1912
  2549
}
slouken@1912
  2550
slouken@1912
  2551
int
slouken@1912
  2552
SDL_GL_GetSwapInterval(void)
slouken@1912
  2553
{
slouken@2753
  2554
    if (!_this) {
slouken@2753
  2555
        SDL_UninitializedVideo();
slouken@2753
  2556
        return -1;
slouken@2753
  2557
    }
slouken@2753
  2558
    if (_this->GL_GetSwapInterval) {
slouken@2753
  2559
        return _this->GL_GetSwapInterval(_this);
slouken@2753
  2560
    } else {
slouken@2753
  2561
        SDL_SetError("Getting the swap interval is not supported");
slouken@2753
  2562
        return -1;
slouken@2753
  2563
    }
slouken@1912
  2564
}
slouken@1912
  2565
slouken@1895
  2566
void
slouken@1912
  2567
SDL_GL_SwapWindow(SDL_WindowID windowID)
slouken@0
  2568
{
slouken@2753
  2569
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2570
slouken@2753
  2571
    if (!window) {
slouken@2753
  2572
        return;
slouken@2753
  2573
    }
slouken@2753
  2574
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2575
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2576
        return;
slouken@2753
  2577
    }
slouken@2753
  2578
    _this->GL_SwapWindow(_this, window);
slouken@1912
  2579
}
slouken@1912
  2580
slouken@1912
  2581
void
slouken@1912
  2582
SDL_GL_DeleteContext(SDL_GLContext context)
slouken@1912
  2583
{
slouken@2753
  2584
    if (!_this || !context) {
slouken@2753
  2585
        return;
slouken@2753
  2586
    }
slouken@2753
  2587
    _this->GL_MakeCurrent(_this, NULL, NULL);
slouken@2753
  2588
    _this->GL_DeleteContext(_this, context);
slouken@0
  2589
}
slouken@0
  2590
slouken@1895
  2591
#if 0                           // FIXME
hfutrell@2744
  2592
/*
hfutrell@2744
  2593
 * Utility function used by SDL_WM_SetIcon(); flags & 1 for color key, flags
hfutrell@2744
  2594
 * & 2 for alpha channel.
hfutrell@2744
  2595
 */
slouken@1895
  2596
static void
slouken@1895
  2597
CreateMaskFromColorKeyOrAlpha(SDL_Surface * icon, Uint8 * mask, int flags)
slouken@0
  2598
{
slouken@2753
  2599
    int x, y;
slouken@2753
  2600
    Uint32 colorkey;
slouken@0
  2601
#define SET_MASKBIT(icon, x, y, mask) \
slouken@0
  2602
	mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8)))
slouken@0
  2603
slouken@2753
  2604
    colorkey = icon->format->colorkey;
slouken@2753
  2605
    switch (icon->format->BytesPerPixel) {
slouken@2753
  2606
    case 1:
slouken@2753
  2607
        {
slouken@2753
  2608
            Uint8 *pixels;
slouken@2753
  2609
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2610
                pixels = (Uint8 *) icon->pixels + y * icon->pitch;
slouken@2753
  2611
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2612
                    if (*pixels++ == colorkey) {
slouken@2753
  2613
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2614
                    }
slouken@2753
  2615
                }
slouken@2753
  2616
            }
slouken@2753
  2617
        }
slouken@2753
  2618
        break;
slouken@0
  2619
slouken@2753
  2620
    case 2:
slouken@2753
  2621
        {
slouken@2753
  2622
            Uint16 *pixels;
slouken@2753
  2623
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2624
                pixels = (Uint16 *) icon->pixels + y * icon->pitch / 2;
slouken@2753
  2625
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2626
                    if ((flags & 1) && *pixels == colorkey) {
slouken@2753
  2627
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2628
                    } else if ((flags & 2)
slouken@2753
  2629
                               && (*pixels & icon->format->Amask) == 0) {
slouken@2753
  2630
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2631
                    }
slouken@2753
  2632
                    pixels++;
slouken@2753
  2633
                }
slouken@2753
  2634
            }
slouken@2753
  2635
        }
slouken@2753
  2636
        break;
slouken@0
  2637
slouken@2753
  2638
    case 4:
slouken@2753
  2639
        {
slouken@2753
  2640
            Uint32 *pixels;
slouken@2753
  2641
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2642
                pixels = (Uint32 *) icon->pixels + y * icon->pitch / 4;
slouken@2753
  2643
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2644
                    if ((flags & 1) && *pixels == colorkey) {
slouken@2753
  2645
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2646
                    } else if ((flags & 2)
slouken@2753
  2647
                               && (*pixels & icon->format->Amask) == 0) {
slouken@2753
  2648
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2649
                    }
slouken@2753
  2650
                    pixels++;
slouken@2753
  2651
                }
slouken@2753
  2652
            }
slouken@2753
  2653
        }
slouken@2753
  2654
        break;
slouken@2753
  2655
    }
slouken@0
  2656
}
slouken@0
  2657
slouken@0
  2658
/*
slouken@0
  2659
 * Sets the window manager icon for the display window.
slouken@0
  2660
 */
slouken@1895
  2661
void
slouken@1895
  2662
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
slouken@0
  2663
{
slouken@2753
  2664
    if (icon && _this->SetIcon) {
slouken@2753
  2665
        /* Generate a mask if necessary, and create the icon! */
slouken@2753
  2666
        if (mask == NULL) {
slouken@2753
  2667
            int mask_len = icon->h * (icon->w + 7) / 8;
slouken@2753
  2668
            int flags = 0;
slouken@2753
  2669
            mask = (Uint8 *) SDL_malloc(mask_len);
slouken@2753
  2670
            if (mask == NULL) {
slouken@2753
  2671
                return;
slouken@2753
  2672
            }
slouken@2753
  2673
            SDL_memset(mask, ~0, mask_len);
slouken@2753
  2674
            if (icon->flags & SDL_SRCCOLORKEY)
slouken@2753
  2675
                flags |= 1;
slouken@2753
  2676
            if (icon->flags & SDL_SRCALPHA)
slouken@2753
  2677
                flags |= 2;
slouken@2753
  2678
            if (flags) {
slouken@2753
  2679
                CreateMaskFromColorKeyOrAlpha(icon, mask, flags);
slouken@2753
  2680
            }
slouken@2753
  2681
            _this->SetIcon(_this, icon, mask);
slouken@2753
  2682
            SDL_free(mask);
slouken@2753
  2683
        } else {
slouken@2753
  2684
            _this->SetIcon(_this, icon, mask);
slouken@2753
  2685
        }
slouken@2753
  2686
    }
slouken@1895
  2687
}
slouken@1895
  2688
#endif
slouken@0
  2689
slouken@1895
  2690
SDL_bool
slouken@2753
  2691
SDL_GetWindowWMInfo(SDL_WindowID windowID, struct SDL_SysWMinfo *info)
slouken@1895
  2692
{
slouken@2753
  2693
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  2694
slouken@2753
  2695
    if (!window || !_this->GetWindowWMInfo) {
slouken@2753
  2696
        return SDL_FALSE;
slouken@2753
  2697
    }
slouken@2753
  2698
    return (_this->GetWindowWMInfo(_this, window, info));
slouken@0
  2699
}
slouken@0
  2700
slouken@1895
  2701
/* vi: set ts=4 sw=4 expandtab: */