src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Mon, 09 Feb 2009 06:15:06 +0000
changeset 3058 17c5930f498e
parent 3057 089a77aebb7d
child 3083 0bc41e0361d3
permissions -rw-r--r--
Throw a FIXME in there, we'll need to take care of this later.
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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_video.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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static void SDL_UpdateWindowGrab(SDL_Window * window);
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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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   385
            return SDL_FALSE;
slouken@2753
   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@2875
   638
            SDL_SetWindowPosition(window->id, window->x, window->y);
slouken@2753
   639
        }
slouken@2753
   640
    }
slouken@1895
   641
slouken@2753
   642
    return 0;
slouken@0
   643
}
slouken@0
   644
slouken@1895
   645
int
slouken@1895
   646
SDL_SetFullscreenDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   647
{
slouken@2753
   648
    SDL_VideoDisplay *display;
slouken@2753
   649
    SDL_DisplayMode fullscreen_mode;
slouken@2753
   650
    int i;
slouken@0
   651
slouken@2753
   652
    if (!_this) {
slouken@2753
   653
        SDL_UninitializedVideo();
slouken@2753
   654
        return -1;
slouken@2753
   655
    }
slouken@2753
   656
    display = &SDL_CurrentDisplay;
slouken@2753
   657
    if (!mode) {
slouken@2753
   658
        mode = &display->desktop_mode;
slouken@2753
   659
    }
slouken@2869
   660
    if (!SDL_GetClosestDisplayMode(mode, &fullscreen_mode)) {
slouken@2869
   661
        SDL_SetError("Couldn't find display mode match");
slouken@2869
   662
        return -1;
slouken@2869
   663
    }
slouken@2753
   664
    if (SDL_memcmp
slouken@2753
   665
        (&fullscreen_mode, &display->fullscreen_mode,
slouken@2753
   666
         sizeof(fullscreen_mode)) == 0) {
slouken@2753
   667
        /* Nothing to do... */
slouken@2753
   668
        return 0;
slouken@2753
   669
    }
slouken@2753
   670
    display->fullscreen_mode = fullscreen_mode;
slouken@0
   671
slouken@2753
   672
    /* Actually set the mode if we have a fullscreen window visible */
slouken@2753
   673
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
   674
        SDL_Window *window = &display->windows[i];
slouken@2753
   675
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
   676
            if (SDL_SetDisplayMode(&display->fullscreen_mode) < 0) {
slouken@2753
   677
                return -1;
slouken@2753
   678
            }
slouken@2753
   679
        }
slouken@2753
   680
        if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
   681
            SDL_OnWindowResized(window);
slouken@2753
   682
        }
slouken@2753
   683
    }
slouken@2753
   684
    return 0;
slouken@0
   685
}
slouken@0
   686
slouken@1967
   687
int
slouken@1967
   688
SDL_GetFullscreenDisplayMode(SDL_DisplayMode * mode)
slouken@0
   689
{
slouken@2753
   690
    if (!_this) {
slouken@2753
   691
        SDL_UninitializedVideo();
slouken@2753
   692
        return -1;
slouken@2753
   693
    }
slouken@2753
   694
    if (mode) {
slouken@2753
   695
        *mode = SDL_CurrentDisplay.fullscreen_mode;
slouken@2753
   696
    }
slouken@2753
   697
    return 0;
slouken@0
   698
}
slouken@0
   699
slouken@1895
   700
int
slouken@1895
   701
SDL_SetDisplayPalette(const SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   702
{
slouken@2753
   703
    SDL_Palette *palette;
slouken@2753
   704
    int status = 0;
slouken@0
   705
slouken@2753
   706
    if (!_this) {
slouken@2753
   707
        SDL_UninitializedVideo();
slouken@2753
   708
        return -1;
slouken@2753
   709
    }
slouken@2753
   710
    palette = SDL_CurrentDisplay.palette;
slouken@2753
   711
    if (!palette) {
slouken@2753
   712
        SDL_SetError("Display mode does not have a palette");
slouken@2753
   713
        return -1;
slouken@2753
   714
    }
slouken@2753
   715
    status = SDL_SetPaletteColors(palette, colors, firstcolor, ncolors);
slouken@0
   716
slouken@2753
   717
    if (_this->SetDisplayPalette) {
slouken@2753
   718
        if (_this->SetDisplayPalette(_this, palette) < 0) {
slouken@2753
   719
            status = -1;
slouken@2753
   720
        }
slouken@2753
   721
    }
slouken@2753
   722
    return status;
slouken@0
   723
}
slouken@0
   724
slouken@1895
   725
int
slouken@1895
   726
SDL_GetDisplayPalette(SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   727
{
slouken@2753
   728
    SDL_Palette *palette;
slouken@1895
   729
slouken@2753
   730
    if (!_this) {
slouken@2753
   731
        SDL_UninitializedVideo();
slouken@2753
   732
        return -1;
slouken@2753
   733
    }
slouken@2753
   734
    palette = SDL_CurrentDisplay.palette;
slouken@2753
   735
    if (!palette->ncolors) {
slouken@2753
   736
        SDL_SetError("Display mode does not have a palette");
slouken@2753
   737
        return -1;
slouken@2753
   738
    }
slouken@2753
   739
    if (firstcolor < 0 || (firstcolor + ncolors) > palette->ncolors) {
slouken@2753
   740
        SDL_SetError("Palette indices are out of range");
slouken@2753
   741
        return -1;
slouken@2753
   742
    }
slouken@2753
   743
    SDL_memcpy(colors, &palette->colors[firstcolor],
slouken@2753
   744
               ncolors * sizeof(*colors));
slouken@2753
   745
    return 0;
slouken@0
   746
}
slouken@0
   747
slouken@1895
   748
SDL_WindowID
slouken@1895
   749
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
   750
{
slouken@2753
   751
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@2753
   752
                                  SDL_WINDOW_OPENGL |
slouken@2753
   753
                                  SDL_WINDOW_BORDERLESS |
slouken@2875
   754
                                  SDL_WINDOW_RESIZABLE |
slouken@2875
   755
                                  SDL_WINDOW_INPUT_GRABBED);
slouken@2753
   756
    SDL_VideoDisplay *display;
slouken@2753
   757
    SDL_Window window;
slouken@2753
   758
    int num_windows;
slouken@2753
   759
    SDL_Window *windows;
slouken@0
   760
slouken@2753
   761
    if (!_this) {
slouken@2753
   762
        SDL_UninitializedVideo();
slouken@2753
   763
        return 0;
slouken@2753
   764
    }
slouken@3057
   765
    if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   766
        if (!_this->GL_CreateContext) {
slouken@3057
   767
            SDL_SetError("No OpenGL support in video driver");
slouken@3057
   768
            return 0;
slouken@3057
   769
        }
slouken@3057
   770
        SDL_GL_LoadLibrary(NULL);
slouken@2753
   771
    }
slouken@2753
   772
    SDL_zero(window);
slouken@2753
   773
    window.id = _this->next_object_id++;
slouken@2753
   774
    window.x = x;
slouken@2753
   775
    window.y = y;
slouken@2753
   776
    window.w = w;
slouken@2753
   777
    window.h = h;
slouken@2753
   778
    window.flags = (flags & allowed_flags);
slouken@2753
   779
    window.display = _this->current_display;
slouken@1912
   780
slouken@2753
   781
    if (_this->CreateWindow && _this->CreateWindow(_this, &window) < 0) {
slouken@3057
   782
        if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   783
            SDL_GL_UnloadLibrary();
slouken@3057
   784
        }
slouken@2753
   785
        return 0;
slouken@2753
   786
    }
slouken@2753
   787
    display = &SDL_CurrentDisplay;
slouken@2753
   788
    num_windows = display->num_windows;
slouken@2753
   789
    windows =
slouken@2753
   790
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@2753
   791
    if (!windows) {
slouken@2753
   792
        if (_this->DestroyWindow) {
slouken@2753
   793
            _this->DestroyWindow(_this, &window);
slouken@2753
   794
        }
slouken@3057
   795
        if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   796
            SDL_GL_UnloadLibrary();
slouken@3057
   797
        }
slouken@2753
   798
        return 0;
slouken@2753
   799
    }
slouken@2753
   800
    windows[num_windows] = window;
slouken@2753
   801
    display->windows = windows;
slouken@2753
   802
    display->num_windows++;
slouken@0
   803
slouken@2753
   804
    if (title) {
slouken@2753
   805
        SDL_SetWindowTitle(window.id, title);
slouken@2753
   806
    }
slouken@2753
   807
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
   808
        SDL_MaximizeWindow(window.id);
slouken@2753
   809
    }
slouken@2753
   810
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
   811
        SDL_MinimizeWindow(window.id);
slouken@2753
   812
    }
slouken@2753
   813
    if (flags & SDL_WINDOW_SHOWN) {
slouken@2753
   814
        SDL_ShowWindow(window.id);
slouken@2753
   815
    }
slouken@2875
   816
    SDL_UpdateWindowGrab(&window);
slouken@2875
   817
slouken@2753
   818
    return window.id;
slouken@1895
   819
}
slouken@0
   820
slouken@1895
   821
SDL_WindowID
slouken@1895
   822
SDL_CreateWindowFrom(const void *data)
slouken@1895
   823
{
slouken@2753
   824
    SDL_VideoDisplay *display;
slouken@2753
   825
    SDL_Window window;
slouken@2753
   826
    int num_windows;
slouken@2753
   827
    SDL_Window *windows;
slouken@0
   828
slouken@2753
   829
    if (!_this) {
slouken@2753
   830
        SDL_UninitializedVideo();
slouken@2753
   831
        return (0);
slouken@2753
   832
    }
slouken@2753
   833
    SDL_zero(window);
slouken@2753
   834
    window.id = _this->next_object_id++;
slouken@2753
   835
    window.display = _this->current_display;
slouken@3057
   836
    window.flags = SDL_WINDOW_FOREIGN;
slouken@1895
   837
slouken@2753
   838
    if (!_this->CreateWindowFrom ||
slouken@2753
   839
        _this->CreateWindowFrom(_this, &window, data) < 0) {
slouken@2753
   840
        return 0;
slouken@2753
   841
    }
slouken@2753
   842
    display = &SDL_CurrentDisplay;
slouken@2753
   843
    num_windows = display->num_windows;
slouken@2753
   844
    windows =
slouken@2753
   845
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@2753
   846
    if (!windows) {
slouken@2753
   847
        if (_this->DestroyWindow) {
slouken@2753
   848
            _this->DestroyWindow(_this, &window);
slouken@2753
   849
        }
slouken@2753
   850
        if (window.title) {
slouken@2753
   851
            SDL_free(window.title);
slouken@2753
   852
        }
slouken@2753
   853
        return 0;
slouken@2753
   854
    }
slouken@2753
   855
    windows[num_windows] = window;
slouken@2753
   856
    display->windows = windows;
slouken@2753
   857
    display->num_windows++;
slouken@1895
   858
slouken@2753
   859
    return window.id;
slouken@1895
   860
}
slouken@1895
   861
slouken@1924
   862
int
slouken@1928
   863
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
   864
{
slouken@3057
   865
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@3057
   866
                                  SDL_WINDOW_OPENGL |
slouken@3057
   867
                                  SDL_WINDOW_BORDERLESS |
slouken@3057
   868
                                  SDL_WINDOW_RESIZABLE |
slouken@3057
   869
                                  SDL_WINDOW_INPUT_GRABBED);
slouken@2753
   870
    char *title = window->title;
slouken@1956
   871
slouken@2753
   872
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@2753
   873
        SDL_SetError("No OpenGL support in video driver");
slouken@2753
   874
        return -1;
slouken@2753
   875
    }
slouken@3057
   876
    if ((window->flags & SDL_WINDOW_OPENGL) != (flags & SDL_WINDOW_OPENGL)) {
slouken@3057
   877
        if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   878
            SDL_GL_LoadLibrary(NULL);
slouken@3057
   879
        } else {
slouken@3057
   880
            SDL_GL_UnloadLibrary();
slouken@3057
   881
        }
slouken@3057
   882
    }
slouken@3057
   883
slouken@3057
   884
    if (window->flags & SDL_WINDOW_FOREIGN) {
slouken@3057
   885
        /* Can't destroy and re-create foreign windows, hrm */
slouken@3057
   886
        flags |= SDL_WINDOW_FOREIGN;
slouken@3057
   887
    } else {
slouken@3057
   888
        flags &= ~SDL_WINDOW_FOREIGN;
slouken@3057
   889
    }
slouken@3057
   890
slouken@3057
   891
    if (_this->DestroyWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@2753
   892
        _this->DestroyWindow(_this, window);
slouken@2753
   893
    }
slouken@3057
   894
slouken@2753
   895
    window->title = NULL;
slouken@3057
   896
    window->flags = (flags & allowed_flags);
slouken@1956
   897
slouken@3057
   898
    if (_this->CreateWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@3057
   899
        if (_this->CreateWindow(_this, window) < 0) {
slouken@3057
   900
            if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   901
                SDL_GL_UnloadLibrary();
slouken@3057
   902
            }
slouken@3057
   903
            return -1;
slouken@3057
   904
        }
slouken@2753
   905
    }
slouken@3057
   906
slouken@2753
   907
    if (title) {
slouken@2753
   908
        SDL_SetWindowTitle(window->id, title);
slouken@2753
   909
        SDL_free(title);
slouken@2753
   910
    }
slouken@2753
   911
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
   912
        SDL_MaximizeWindow(window->id);
slouken@2753
   913
    }
slouken@2753
   914
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
   915
        SDL_MinimizeWindow(window->id);
slouken@2753
   916
    }
slouken@2753
   917
    if (flags & SDL_WINDOW_SHOWN) {
slouken@2753
   918
        SDL_ShowWindow(window->id);
slouken@2753
   919
    }
slouken@2875
   920
    SDL_UpdateWindowGrab(window);
slouken@2875
   921
slouken@2753
   922
    return 0;
slouken@1924
   923
}
slouken@1924
   924
slouken@2753
   925
SDL_Window *
slouken@1895
   926
SDL_GetWindowFromID(SDL_WindowID windowID)
slouken@1895
   927
{
slouken@2753
   928
    int i, j;
slouken@1895
   929
slouken@2753
   930
    if (!_this) {
slouken@2753
   931
        SDL_UninitializedVideo();
slouken@2753
   932
        return NULL;
slouken@2753
   933
    }
slouken@2753
   934
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
   935
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
   936
        for (j = 0; j < display->num_windows; ++j) {
slouken@2753
   937
            SDL_Window *window = &display->windows[j];
slouken@2753
   938
            if (window->id == windowID) {
slouken@2753
   939
                return window;
slouken@2753
   940
            }
slouken@2753
   941
        }
slouken@2753
   942
    }
slouken@2753
   943
    return NULL;
slouken@1895
   944
}
slouken@1895
   945
slouken@1895
   946
SDL_VideoDisplay *
slouken@1895
   947
SDL_GetDisplayFromWindow(SDL_Window * window)
slouken@1895
   948
{
slouken@2753
   949
    if (!_this) {
slouken@2753
   950
        SDL_UninitializedVideo();
slouken@2753
   951
        return NULL;
slouken@2753
   952
    }
slouken@2753
   953
    if (!window) {
slouken@2753
   954
        return NULL;
slouken@2753
   955
    }
slouken@2753
   956
    return &_this->displays[window->display];
slouken@1895
   957
}
slouken@1895
   958
slouken@1895
   959
Uint32
slouken@1895
   960
SDL_GetWindowFlags(SDL_WindowID windowID)
slouken@1895
   961
{
slouken@2753
   962
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   963
slouken@2753
   964
    if (!window) {
slouken@2753
   965
        return 0;
slouken@2753
   966
    }
slouken@2753
   967
    return window->flags;
slouken@1895
   968
}
slouken@1895
   969
slouken@1895
   970
void
slouken@1895
   971
SDL_SetWindowTitle(SDL_WindowID windowID, const char *title)
slouken@1895
   972
{
slouken@2753
   973
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   974
slouken@2753
   975
    if (!window || title == window->title) {
slouken@2753
   976
        return;
slouken@2753
   977
    }
slouken@2753
   978
    if (window->title) {
slouken@2753
   979
        SDL_free(window->title);
slouken@2753
   980
    }
slouken@2753
   981
    if (title) {
slouken@2753
   982
        window->title = SDL_strdup(title);
slouken@2753
   983
    } else {
slouken@2753
   984
        window->title = NULL;
slouken@2753
   985
    }
slouken@1956
   986
slouken@2753
   987
    if (_this->SetWindowTitle) {
slouken@2753
   988
        _this->SetWindowTitle(_this, window);
slouken@2753
   989
    }
slouken@1895
   990
}
slouken@1895
   991
slouken@2753
   992
const char *
slouken@1895
   993
SDL_GetWindowTitle(SDL_WindowID windowID)
slouken@1895
   994
{
slouken@2753
   995
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   996
slouken@2753
   997
    if (!window) {
slouken@2753
   998
        return NULL;
slouken@2753
   999
    }
slouken@2753
  1000
    return window->title;
slouken@1895
  1001
}
slouken@1895
  1002
slouken@1895
  1003
void
slouken@2967
  1004
SDL_SetWindowIcon(SDL_WindowID windowID, SDL_Surface * icon)
slouken@2967
  1005
{
slouken@2967
  1006
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2967
  1007
slouken@2967
  1008
    if (!window) {
slouken@2967
  1009
        return;
slouken@2967
  1010
    }
slouken@2967
  1011
    if (_this->SetWindowIcon) {
slouken@2967
  1012
        _this->SetWindowIcon(_this, window, icon);
slouken@2967
  1013
    }
slouken@2967
  1014
}
slouken@2967
  1015
slouken@2967
  1016
void
slouken@1895
  1017
SDL_SetWindowData(SDL_WindowID windowID, void *userdata)
slouken@1895
  1018
{
slouken@2753
  1019
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1020
slouken@2753
  1021
    if (!window) {
slouken@2753
  1022
        return;
slouken@2753
  1023
    }
slouken@2753
  1024
    window->userdata = userdata;
slouken@1895
  1025
}
slouken@1895
  1026
slouken@2753
  1027
void *
slouken@1895
  1028
SDL_GetWindowData(SDL_WindowID windowID)
slouken@1895
  1029
{
slouken@2753
  1030
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1031
slouken@2753
  1032
    if (!window) {
slouken@2753
  1033
        return NULL;
slouken@2753
  1034
    }
slouken@2753
  1035
    return window->userdata;
slouken@1895
  1036
}
slouken@1895
  1037
slouken@1895
  1038
void
slouken@1895
  1039
SDL_SetWindowPosition(SDL_WindowID windowID, int x, int y)
slouken@1895
  1040
{
slouken@2753
  1041
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  1042
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1043
slouken@2753
  1044
    if (!window) {
slouken@2753
  1045
        return;
slouken@2753
  1046
    }
slouken@2875
  1047
    if (x != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1048
        window->x = x;
slouken@2753
  1049
    }
slouken@2875
  1050
    if (y != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1051
        window->y = y;
slouken@2753
  1052
    }
slouken@2753
  1053
    if (_this->SetWindowPosition) {
slouken@2753
  1054
        _this->SetWindowPosition(_this, window);
slouken@2753
  1055
    }
slouken@2875
  1056
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MOVED, x, y);
slouken@1895
  1057
}
slouken@1895
  1058
slouken@1895
  1059
void
slouken@1895
  1060
SDL_GetWindowPosition(SDL_WindowID windowID, int *x, int *y)
slouken@1895
  1061
{
slouken@2753
  1062
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1063
slouken@2753
  1064
    if (!window) {
slouken@2753
  1065
        return;
slouken@2753
  1066
    }
slouken@2753
  1067
    if (x) {
slouken@2753
  1068
        *x = window->x;
slouken@2753
  1069
    }
slouken@2753
  1070
    if (y) {
slouken@2753
  1071
        *y = window->y;
slouken@2753
  1072
    }
slouken@1895
  1073
}
slouken@1895
  1074
slouken@1895
  1075
void
slouken@1895
  1076
SDL_SetWindowSize(SDL_WindowID windowID, int w, int h)
slouken@1895
  1077
{
slouken@2753
  1078
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1079
slouken@2753
  1080
    if (!window) {
slouken@2753
  1081
        return;
slouken@2753
  1082
    }
slouken@2753
  1083
    window->w = w;
slouken@2753
  1084
    window->h = h;
slouken@1895
  1085
slouken@2753
  1086
    if (_this->SetWindowSize) {
slouken@2753
  1087
        _this->SetWindowSize(_this, window);
slouken@2753
  1088
    }
slouken@2849
  1089
    SDL_OnWindowResized(window);
slouken@1895
  1090
}
slouken@1895
  1091
slouken@1895
  1092
void
slouken@1895
  1093
SDL_GetWindowSize(SDL_WindowID windowID, int *w, int *h)
slouken@1895
  1094
{
slouken@2753
  1095
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1096
slouken@2860
  1097
    if (window) {
slouken@2849
  1098
        if (w) {
slouken@2849
  1099
            *w = window->w;
slouken@2849
  1100
        }
slouken@2849
  1101
        if (h) {
slouken@2849
  1102
            *h = window->h;
slouken@2849
  1103
        }
slouken@2849
  1104
    } else {
slouken@2849
  1105
        if (w) {
slouken@2849
  1106
            *w = 0;
slouken@2849
  1107
        }
slouken@2849
  1108
        if (h) {
slouken@2849
  1109
            *h = 0;
slouken@2849
  1110
        }
slouken@2753
  1111
    }
slouken@1895
  1112
}
slouken@1895
  1113
slouken@1895
  1114
void
slouken@1895
  1115
SDL_ShowWindow(SDL_WindowID windowID)
slouken@1895
  1116
{
slouken@2753
  1117
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1118
slouken@2753
  1119
    if (!window || (window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1120
        return;
slouken@2753
  1121
    }
slouken@1895
  1122
slouken@2753
  1123
    if (_this->ShowWindow) {
slouken@2753
  1124
        _this->ShowWindow(_this, window);
slouken@2753
  1125
    }
slouken@2875
  1126
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1127
}
slouken@1895
  1128
slouken@1895
  1129
void
slouken@1895
  1130
SDL_HideWindow(SDL_WindowID windowID)
slouken@1895
  1131
{
slouken@2753
  1132
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1133
slouken@2753
  1134
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1135
        return;
slouken@2753
  1136
    }
slouken@1895
  1137
slouken@2753
  1138
    if (_this->HideWindow) {
slouken@2753
  1139
        _this->HideWindow(_this, window);
slouken@2753
  1140
    }
slouken@2875
  1141
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1142
}
slouken@1895
  1143
slouken@1895
  1144
void
slouken@1895
  1145
SDL_RaiseWindow(SDL_WindowID windowID)
slouken@1895
  1146
{
slouken@2753
  1147
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1148
slouken@2753
  1149
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1150
        return;
slouken@2753
  1151
    }
slouken@2753
  1152
    if (_this->RaiseWindow) {
slouken@2753
  1153
        _this->RaiseWindow(_this, window);
slouken@2753
  1154
    }
slouken@1895
  1155
}
slouken@1895
  1156
slouken@1895
  1157
void
slouken@1895
  1158
SDL_MaximizeWindow(SDL_WindowID windowID)
slouken@1895
  1159
{
slouken@2753
  1160
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1161
slouken@2753
  1162
    if (!window || (window->flags & SDL_WINDOW_MAXIMIZED)) {
slouken@2753
  1163
        return;
slouken@2753
  1164
    }
slouken@1895
  1165
slouken@2753
  1166
    if (_this->MaximizeWindow) {
slouken@2753
  1167
        _this->MaximizeWindow(_this, window);
slouken@2753
  1168
    }
slouken@2875
  1169
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@1895
  1170
}
slouken@1895
  1171
slouken@1895
  1172
void
slouken@1895
  1173
SDL_MinimizeWindow(SDL_WindowID windowID)
slouken@1895
  1174
{
slouken@2753
  1175
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1176
slouken@2753
  1177
    if (!window || (window->flags & SDL_WINDOW_MINIMIZED)) {
slouken@2753
  1178
        return;
slouken@2753
  1179
    }
slouken@1895
  1180
slouken@2753
  1181
    if (_this->MinimizeWindow) {
slouken@2753
  1182
        _this->MinimizeWindow(_this, window);
slouken@2753
  1183
    }
slouken@2875
  1184
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@1895
  1185
}
slouken@1895
  1186
slouken@1895
  1187
void
slouken@1895
  1188
SDL_RestoreWindow(SDL_WindowID windowID)
slouken@1895
  1189
{
slouken@2753
  1190
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1191
slouken@2753
  1192
    if (!window
slouken@2934
  1193
        || !(window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@2753
  1194
        return;
slouken@2753
  1195
    }
slouken@1895
  1196
slouken@2753
  1197
    if (_this->RestoreWindow) {
slouken@2753
  1198
        _this->RestoreWindow(_this, window);
slouken@2753
  1199
    }
slouken@2875
  1200
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@1895
  1201
}
slouken@1895
  1202
slouken@1895
  1203
int
slouken@1895
  1204
SDL_SetWindowFullscreen(SDL_WindowID windowID, int fullscreen)
slouken@1895
  1205
{
slouken@2753
  1206
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1207
slouken@2753
  1208
    if (!window) {
slouken@2753
  1209
        return -1;
slouken@2753
  1210
    }
slouken@2753
  1211
    if (fullscreen) {
slouken@2753
  1212
        fullscreen = SDL_WINDOW_FULLSCREEN;
slouken@2753
  1213
    }
slouken@2753
  1214
    if ((window->flags & SDL_WINDOW_FULLSCREEN) == fullscreen) {
slouken@2753
  1215
        return 0;
slouken@2753
  1216
    }
slouken@2753
  1217
    if (fullscreen) {
slouken@2753
  1218
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
  1219
slouken@2753
  1220
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
  1221
            SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1222
slouken@2753
  1223
            /* Hide any other fullscreen windows */
slouken@2753
  1224
            int i;
slouken@2753
  1225
            for (i = 0; i < display->num_windows; ++i) {
slouken@2753
  1226
                SDL_Window *other = &display->windows[i];
slouken@2753
  1227
                if (other->id != windowID && FULLSCREEN_VISIBLE(other)) {
slouken@2753
  1228
                    SDL_MinimizeWindow(other->id);
slouken@2753
  1229
                }
slouken@2753
  1230
            }
slouken@1895
  1231
slouken@2753
  1232
            SDL_SetDisplayMode(&display->fullscreen_mode);
slouken@2753
  1233
        }
slouken@2753
  1234
    } else {
slouken@2753
  1235
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@1895
  1236
slouken@2753
  1237
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
  1238
            SDL_SetDisplayMode(NULL);
slouken@2753
  1239
        }
slouken@2753
  1240
    }
slouken@2753
  1241
    return 0;
slouken@1895
  1242
}
slouken@1895
  1243
slouken@1895
  1244
void
slouken@1895
  1245
SDL_SetWindowGrab(SDL_WindowID windowID, int mode)
slouken@1895
  1246
{
slouken@2753
  1247
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1248
slouken@2753
  1249
    if (!window || (!!mode == !!(window->flags & SDL_WINDOW_INPUT_GRABBED))) {
slouken@2753
  1250
        return;
slouken@2753
  1251
    }
slouken@2753
  1252
    if (mode) {
slouken@2753
  1253
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1254
    } else {
slouken@2753
  1255
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1256
    }
slouken@2875
  1257
    SDL_UpdateWindowGrab(window);
slouken@2875
  1258
}
slouken@1895
  1259
slouken@2875
  1260
static void
slouken@2876
  1261
SDL_UpdateWindowGrab(SDL_Window * window)
slouken@2875
  1262
{
slouken@2753
  1263
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@2753
  1264
        _this->SetWindowGrab(_this, window);
slouken@2753
  1265
    }
slouken@1895
  1266
}
slouken@1895
  1267
slouken@1895
  1268
int
slouken@1895
  1269
SDL_GetWindowGrab(SDL_WindowID windowID)
slouken@1895
  1270
{
slouken@2753
  1271
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1272
slouken@2753
  1273
    if (!window) {
slouken@2753
  1274
        return 0;
slouken@2753
  1275
    }
slouken@2753
  1276
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1277
}
slouken@1895
  1278
slouken@1895
  1279
void
slouken@1895
  1280
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1281
{
slouken@2875
  1282
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2875
  1283
        SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_FOCUS_GAINED, 0, 0);
slouken@2875
  1284
    }
slouken@1895
  1285
}
slouken@1895
  1286
slouken@1895
  1287
void
slouken@1895
  1288
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1289
{
slouken@2875
  1290
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2875
  1291
        SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@2875
  1292
    }
slouken@1895
  1293
}
slouken@1895
  1294
slouken@1895
  1295
void
slouken@1970
  1296
SDL_OnWindowResized(SDL_Window * window)
slouken@1970
  1297
{
slouken@2753
  1298
    SDL_Renderer *renderer = window->renderer;
slouken@1970
  1299
slouken@2753
  1300
    if (renderer && renderer->DisplayModeChanged) {
slouken@2753
  1301
        renderer->DisplayModeChanged(renderer);
slouken@2753
  1302
    }
slouken@1970
  1303
}
slouken@1970
  1304
slouken@1970
  1305
void
slouken@1895
  1306
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1307
{
slouken@2753
  1308
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1309
slouken@2753
  1310
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
  1311
        SDL_SetDisplayMode(&display->fullscreen_mode);
slouken@2753
  1312
    }
slouken@2753
  1313
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@2753
  1314
        _this->SetDisplayGammaRamp(_this, display->gamma);
slouken@2753
  1315
    }
slouken@2876
  1316
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN))
slouken@2876
  1317
        && _this->SetWindowGrab) {
slouken@2753
  1318
        _this->SetWindowGrab(_this, window);
slouken@2753
  1319
    }
slouken@1895
  1320
}
slouken@1895
  1321
slouken@1895
  1322
void
slouken@1895
  1323
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1324
{
slouken@2753
  1325
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1326
slouken@2753
  1327
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
  1328
        SDL_MinimizeWindow(window->id);
slouken@2753
  1329
        SDL_SetDisplayMode(NULL);
slouken@2753
  1330
    }
slouken@2753
  1331
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@2753
  1332
        _this->SetDisplayGammaRamp(_this, display->saved_gamma);
slouken@2753
  1333
    }
slouken@2876
  1334
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN))
slouken@2876
  1335
        && _this->SetWindowGrab) {
slouken@2753
  1336
        _this->SetWindowGrab(_this, window);
slouken@2753
  1337
    }
slouken@1895
  1338
}
slouken@1895
  1339
slouken@1895
  1340
SDL_WindowID
slouken@1895
  1341
SDL_GetFocusWindow(void)
slouken@1895
  1342
{
slouken@2753
  1343
    SDL_VideoDisplay *display;
slouken@2753
  1344
    int i;
slouken@1895
  1345
slouken@2753
  1346
    if (!_this) {
slouken@2753
  1347
        return 0;
slouken@2753
  1348
    }
slouken@2753
  1349
    display = &SDL_CurrentDisplay;
slouken@2753
  1350
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
  1351
        SDL_Window *window = &display->windows[i];
slouken@1895
  1352
slouken@2753
  1353
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@2753
  1354
            return window->id;
slouken@2753
  1355
        }
slouken@2753
  1356
    }
slouken@2753
  1357
    return 0;
slouken@1895
  1358
}
slouken@1895
  1359
slouken@1895
  1360
void
slouken@1895
  1361
SDL_DestroyWindow(SDL_WindowID windowID)
slouken@1895
  1362
{
slouken@2753
  1363
    int i, j;
slouken@1895
  1364
slouken@2753
  1365
    if (!_this) {
slouken@2753
  1366
        return;
slouken@2753
  1367
    }
slouken@2753
  1368
    /* Restore video mode, etc. */
slouken@2753
  1369
    SDL_SendWindowEvent(windowID, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@1895
  1370
slouken@2753
  1371
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
  1372
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  1373
        for (j = 0; j < display->num_windows; ++j) {
slouken@2753
  1374
            SDL_Window *window = &display->windows[j];
slouken@2753
  1375
            if (window->id != windowID) {
slouken@2753
  1376
                continue;
slouken@2753
  1377
            }
slouken@2753
  1378
            if (window->title) {
slouken@2753
  1379
                SDL_free(window->title);
slouken@2753
  1380
                window->title = NULL;
slouken@2753
  1381
            }
slouken@2753
  1382
            if (window->renderer) {
slouken@2753
  1383
                SDL_DestroyRenderer(window->id);
slouken@2753
  1384
                window->renderer = NULL;
slouken@2753
  1385
            }
slouken@2753
  1386
            if (_this->DestroyWindow) {
slouken@2753
  1387
                _this->DestroyWindow(_this, window);
slouken@2753
  1388
            }
slouken@3057
  1389
            if (window->flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1390
                SDL_GL_UnloadLibrary();
slouken@3057
  1391
            }
slouken@2753
  1392
            if (j != display->num_windows - 1) {
slouken@2753
  1393
                SDL_memcpy(&display->windows[i],
slouken@2753
  1394
                           &display->windows[i + 1],
slouken@2753
  1395
                           (display->num_windows - i - 1) * sizeof(*window));
slouken@2753
  1396
            }
slouken@2753
  1397
            --display->num_windows;
slouken@2753
  1398
            return;
slouken@2753
  1399
        }
slouken@2753
  1400
    }
slouken@1895
  1401
}
slouken@1895
  1402
slouken@1895
  1403
void
slouken@1895
  1404
SDL_AddRenderDriver(int displayIndex, const SDL_RenderDriver * driver)
slouken@1895
  1405
{
slouken@2753
  1406
    SDL_VideoDisplay *display;
slouken@2753
  1407
    SDL_RenderDriver *render_drivers;
slouken@1895
  1408
slouken@2753
  1409
    if (displayIndex >= _this->num_displays) {
slouken@2753
  1410
        return;
slouken@2753
  1411
    }
slouken@2753
  1412
    display = &_this->displays[displayIndex];
slouken@2119
  1413
slouken@2753
  1414
    render_drivers =
slouken@2753
  1415
        SDL_realloc(display->render_drivers,
slouken@2753
  1416
                    (display->num_render_drivers +
slouken@2753
  1417
                     1) * sizeof(*render_drivers));
slouken@2753
  1418
    if (render_drivers) {
slouken@2753
  1419
        render_drivers[display->num_render_drivers] = *driver;
slouken@2753
  1420
        display->render_drivers = render_drivers;
slouken@2753
  1421
        display->num_render_drivers++;
slouken@2753
  1422
    }
slouken@1895
  1423
}
slouken@1895
  1424
slouken@1895
  1425
int
slouken@1969
  1426
SDL_GetNumRenderDrivers(void)
slouken@1895
  1427
{
slouken@2753
  1428
    if (_this) {
slouken@2753
  1429
        return SDL_CurrentDisplay.num_render_drivers;
slouken@2753
  1430
    }
slouken@2753
  1431
    return 0;
slouken@1895
  1432
}
slouken@1895
  1433
slouken@1895
  1434
int
slouken@1969
  1435
SDL_GetRenderDriverInfo(int index, SDL_RendererInfo * info)
slouken@1895
  1436
{
slouken@2753
  1437
    if (!_this) {
slouken@2753
  1438
        SDL_UninitializedVideo();
slouken@2753
  1439
        return -1;
slouken@2753
  1440
    }
slouken@2753
  1441
    if (index < 0 || index >= SDL_GetNumRenderDrivers()) {
slouken@2753
  1442
        SDL_SetError("index must be in the range of 0 - %d",
slouken@2753
  1443
                     SDL_GetNumRenderDrivers() - 1);
slouken@2753
  1444
        return -1;
slouken@2753
  1445
    }
slouken@2753
  1446
    *info = SDL_CurrentDisplay.render_drivers[index].info;
slouken@2753
  1447
    return 0;
slouken@1895
  1448
}
slouken@1895
  1449
slouken@1895
  1450
int
slouken@1895
  1451
SDL_CreateRenderer(SDL_WindowID windowID, int index, Uint32 flags)
slouken@1895
  1452
{
slouken@2753
  1453
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1454
slouken@2753
  1455
    if (!window) {
slouken@2753
  1456
        return 0;
slouken@2753
  1457
    }
slouken@2753
  1458
    if (index < 0) {
slouken@2753
  1459
        const char *override = SDL_getenv("SDL_VIDEO_RENDERER");
slouken@2753
  1460
        int n = SDL_GetNumRenderDrivers();
slouken@2753
  1461
        for (index = 0; index < n; ++index) {
slouken@2753
  1462
            SDL_RenderDriver *driver =
slouken@2753
  1463
                &SDL_CurrentDisplay.render_drivers[index];
slouken@1895
  1464
slouken@2753
  1465
            if (override) {
slouken@2753
  1466
                if (SDL_strcasecmp(override, driver->info.name) == 0) {
slouken@2753
  1467
                    break;
slouken@2753
  1468
                }
slouken@2753
  1469
            } else {
slouken@2753
  1470
                if ((driver->info.flags & flags) == flags) {
slouken@2753
  1471
                    break;
slouken@2753
  1472
                }
slouken@2753
  1473
            }
slouken@2753
  1474
        }
slouken@2753
  1475
        if (index == n) {
slouken@2753
  1476
            SDL_SetError("Couldn't find matching render driver");
slouken@2753
  1477
            return -1;
slouken@2753
  1478
        }
slouken@2753
  1479
    }
slouken@2753
  1480
    if (index >= SDL_GetNumRenderDrivers()) {
slouken@2753
  1481
        SDL_SetError("index must be -1 or in the range of 0 - %d",
slouken@2753
  1482
                     SDL_GetNumRenderDrivers() - 1);
slouken@2753
  1483
        return -1;
slouken@2753
  1484
    }
slouken@2753
  1485
    /* Free any existing renderer */
slouken@2753
  1486
    SDL_DestroyRenderer(windowID);
slouken@1895
  1487
slouken@2753
  1488
    /* Create a new renderer instance */
slouken@2753
  1489
    window->renderer = SDL_CurrentDisplay.render_drivers[index]
slouken@2753
  1490
        .CreateRenderer(window, flags);
slouken@2753
  1491
    SDL_SelectRenderer(window->id);
slouken@1895
  1492
slouken@2753
  1493
    return 0;
slouken@1895
  1494
}
slouken@1895
  1495
slouken@1895
  1496
int
slouken@1895
  1497
SDL_SelectRenderer(SDL_WindowID windowID)
slouken@1895
  1498
{
slouken@2753
  1499
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  1500
    SDL_Renderer *renderer;
slouken@1895
  1501
slouken@2753
  1502
    if (!window || !window->renderer) {
slouken@2753
  1503
        return -1;
slouken@2753
  1504
    }
slouken@2753
  1505
    renderer = window->renderer;
slouken@2753
  1506
    if (renderer && renderer->ActivateRenderer) {
slouken@2753
  1507
        if (renderer->ActivateRenderer(renderer) < 0) {
slouken@2753
  1508
            return -1;
slouken@2753
  1509
        }
slouken@2753
  1510
    }
slouken@2753
  1511
    SDL_CurrentDisplay.current_renderer = renderer;
slouken@2753
  1512
    return 0;
slouken@1895
  1513
}
slouken@1895
  1514
slouken@1969
  1515
int
slouken@1969
  1516
SDL_GetRendererInfo(SDL_RendererInfo * info)
slouken@1969
  1517
{
slouken@2753
  1518
    if (!_this) {
slouken@2753
  1519
        SDL_UninitializedVideo();
slouken@2753
  1520
        return -1;
slouken@2753
  1521
    }
slouken@2753
  1522
    if (!SDL_CurrentDisplay.current_renderer) {
slouken@2753
  1523
        SDL_SetError("There is no current renderer");
slouken@2753
  1524
        return -1;
slouken@2753
  1525
    }
slouken@2753
  1526
    *info = SDL_CurrentDisplay.current_renderer->info;
slouken@2753
  1527
    return 0;
slouken@1969
  1528
}
slouken@1969
  1529
slouken@1895
  1530
SDL_TextureID
slouken@1895
  1531
SDL_CreateTexture(Uint32 format, int access, int w, int h)
slouken@1895
  1532
{
slouken@2753
  1533
    int hash;
slouken@2753
  1534
    SDL_Renderer *renderer;
slouken@2753
  1535
    SDL_Texture *texture;
slouken@1895
  1536
slouken@2753
  1537
    if (!_this) {
slouken@2753
  1538
        SDL_UninitializedVideo();
slouken@2753
  1539
        return 0;
slouken@2753
  1540
    }
slouken@2753
  1541
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  1542
    if (!renderer) {
slouken@2810
  1543
        return 0;
slouken@2810
  1544
    }
slouken@2810
  1545
    if (!renderer->CreateTexture) {
slouken@2810
  1546
        SDL_Unsupported();
slouken@2753
  1547
        return 0;
slouken@2753
  1548
    }
slouken@2753
  1549
    texture = (SDL_Texture *) SDL_calloc(1, sizeof(*texture));
slouken@2753
  1550
    if (!texture) {
slouken@2753
  1551
        SDL_OutOfMemory();
slouken@2753
  1552
        return 0;
slouken@2753
  1553
    }
slouken@2753
  1554
    texture->id = _this->next_object_id++;
slouken@2753
  1555
    texture->format = format;
slouken@2753
  1556
    texture->access = access;
slouken@2753
  1557
    texture->w = w;
slouken@2753
  1558
    texture->h = h;
slouken@2753
  1559
    texture->r = 255;
slouken@2753
  1560
    texture->g = 255;
slouken@2753
  1561
    texture->b = 255;
slouken@2753
  1562
    texture->a = 255;
slouken@2753
  1563
    texture->renderer = renderer;
slouken@1895
  1564
slouken@2753
  1565
    if (renderer->CreateTexture(renderer, texture) < 0) {
slouken@2753
  1566
        if (renderer->DestroyTexture) {
slouken@2753
  1567
            renderer->DestroyTexture(renderer, texture);
slouken@2753
  1568
        }
slouken@2753
  1569
        SDL_free(texture);
slouken@2753
  1570
        return 0;
slouken@2753
  1571
    }
slouken@2753
  1572
    hash = (texture->id % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  1573
    texture->next = SDL_CurrentDisplay.textures[hash];
slouken@2753
  1574
    SDL_CurrentDisplay.textures[hash] = texture;
slouken@1895
  1575
slouken@2753
  1576
    return texture->id;
slouken@1895
  1577
}
slouken@1895
  1578
slouken@1895
  1579
SDL_TextureID
slouken@2222
  1580
SDL_CreateTextureFromSurface(Uint32 format, SDL_Surface * surface)
slouken@1895
  1581
{
slouken@2753
  1582
    SDL_TextureID textureID;
slouken@3057
  1583
    Uint32 requested_format = format;
slouken@2753
  1584
    SDL_PixelFormat *fmt;
slouken@2753
  1585
    int bpp;
slouken@2753
  1586
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@1895
  1587
slouken@2753
  1588
    if (!surface) {
slouken@2753
  1589
        SDL_SetError("SDL_CreateTextureFromSurface() passed NULL surface");
slouken@2753
  1590
        return 0;
slouken@2753
  1591
    }
slouken@2753
  1592
    fmt = surface->format;
slouken@1895
  1593
slouken@2753
  1594
    if (format) {
slouken@2753
  1595
        if (!SDL_PixelFormatEnumToMasks
slouken@2753
  1596
            (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@2753
  1597
            SDL_SetError("Unknown pixel format");
slouken@2753
  1598
            return 0;
slouken@2753
  1599
        }
slouken@2753
  1600
    } else {
slouken@3058
  1601
        /* FIXME: Get the best supported texture format */
slouken@2753
  1602
        if (surface->format->Amask
slouken@2753
  1603
            || !(surface->map->info.flags &
slouken@2753
  1604
                 (SDL_COPY_COLORKEY | SDL_COPY_MASK | SDL_COPY_BLEND))) {
slouken@2753
  1605
            bpp = fmt->BitsPerPixel;
slouken@2753
  1606
            Rmask = fmt->Rmask;
slouken@2753
  1607
            Gmask = fmt->Gmask;
slouken@2753
  1608
            Bmask = fmt->Bmask;
slouken@2753
  1609
            Amask = fmt->Amask;
slouken@2753
  1610
        } else {
slouken@2753
  1611
            /* Need a format with alpha */
slouken@2753
  1612
            bpp = 32;
slouken@2753
  1613
            Rmask = 0x00FF0000;
slouken@2753
  1614
            Gmask = 0x0000FF00;
slouken@2753
  1615
            Bmask = 0x000000FF;
slouken@2753
  1616
            Amask = 0xFF000000;
slouken@2753
  1617
        }
slouken@2753
  1618
        format = SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
slouken@2753
  1619
        if (!format) {
slouken@2753
  1620
            SDL_SetError("Unknown pixel format");
slouken@2753
  1621
            return 0;
slouken@2753
  1622
        }
slouken@2753
  1623
    }
slouken@1895
  1624
slouken@2753
  1625
    textureID =
slouken@2753
  1626
        SDL_CreateTexture(format, SDL_TEXTUREACCESS_STATIC, surface->w,
slouken@2753
  1627
                          surface->h);
slouken@3057
  1628
    if (!textureID && !requested_format) {
slouken@3057
  1629
        SDL_DisplayMode desktop_mode;
slouken@3057
  1630
        SDL_GetDesktopDisplayMode(&desktop_mode);
slouken@3057
  1631
        format = desktop_mode.format;
slouken@3057
  1632
        textureID =
slouken@3057
  1633
            SDL_CreateTexture(format, SDL_TEXTUREACCESS_STATIC, surface->w,
slouken@3057
  1634
                              surface->h);
slouken@3057
  1635
    }
slouken@2753
  1636
    if (!textureID) {
slouken@2753
  1637
        return 0;
slouken@2753
  1638
    }
slouken@2753
  1639
    if (bpp == fmt->BitsPerPixel && Rmask == fmt->Rmask && Gmask == fmt->Gmask
slouken@2753
  1640
        && Bmask == fmt->Bmask && Amask == fmt->Amask) {
slouken@2753
  1641
        if (SDL_MUSTLOCK(surface)) {
slouken@2753
  1642
            if (SDL_LockSurface(surface) < 0) {
slouken@2753
  1643
                SDL_DestroyTexture(textureID);
slouken@2753
  1644
                return 0;
slouken@2753
  1645
            }
slouken@2753
  1646
            SDL_UpdateTexture(textureID, NULL, surface->pixels,
slouken@2753
  1647
                              surface->pitch);
slouken@2753
  1648
            SDL_UnlockSurface(surface);
slouken@2753
  1649
        } else {
slouken@2753
  1650
            SDL_UpdateTexture(textureID, NULL, surface->pixels,
slouken@2753
  1651
                              surface->pitch);
slouken@2753
  1652
        }
slouken@2753
  1653
    } else {
slouken@2967
  1654
        SDL_PixelFormat dst_fmt;
slouken@2753
  1655
        SDL_Surface *dst = NULL;
slouken@1895
  1656
slouken@2753
  1657
        /* Set up a destination surface for the texture update */
slouken@2967
  1658
        SDL_InitFormat(&dst_fmt, bpp, Rmask, Gmask, Bmask, Amask);
slouken@2967
  1659
        if (SDL_ISPIXELFORMAT_INDEXED(format)) {
slouken@2967
  1660
            dst_fmt.palette =
slouken@2967
  1661
                SDL_AllocPalette((1 << SDL_BITSPERPIXEL(format)));
slouken@2967
  1662
            if (dst_fmt.palette) {
slouken@2967
  1663
                /*
slouken@2967
  1664
                 * FIXME: Should we try to copy
slouken@2967
  1665
                 * fmt->palette?
slouken@2967
  1666
                 */
slouken@2967
  1667
                SDL_DitherColors(dst_fmt.palette->colors,
slouken@2967
  1668
                                 SDL_BITSPERPIXEL(format));
slouken@2753
  1669
            }
slouken@2967
  1670
        }
slouken@2967
  1671
        dst = SDL_ConvertSurface(surface, &dst_fmt, 0);
slouken@2967
  1672
        if (dst) {
slouken@2967
  1673
            SDL_UpdateTexture(textureID, NULL, dst->pixels, dst->pitch);
slouken@2967
  1674
            SDL_FreeSurface(dst);
slouken@2967
  1675
        }
slouken@2967
  1676
        if (dst_fmt.palette) {
slouken@2967
  1677
            SDL_FreePalette(dst_fmt.palette);
slouken@2753
  1678
        }
slouken@2753
  1679
        if (!dst) {
slouken@2753
  1680
            SDL_DestroyTexture(textureID);
slouken@2753
  1681
            return 0;
slouken@2753
  1682
        }
slouken@2753
  1683
    }
slouken@2222
  1684
slouken@3053
  1685
    {
slouken@3053
  1686
        Uint8 r, g, b, a;
slouken@3053
  1687
        int blendMode;
slouken@3053
  1688
        int scaleMode;
slouken@3053
  1689
slouken@3053
  1690
        SDL_GetSurfaceColorMod(surface, &r, &g, &b);
slouken@3053
  1691
        SDL_SetTextureColorMod(textureID, r, g, b);
slouken@3053
  1692
slouken@3053
  1693
        SDL_GetSurfaceAlphaMod(surface, &a);
slouken@3053
  1694
        SDL_SetTextureAlphaMod(textureID, a);
slouken@3053
  1695
slouken@3053
  1696
        SDL_GetSurfaceBlendMode(surface, &blendMode);
slouken@3053
  1697
        SDL_SetTextureBlendMode(textureID, blendMode);
slouken@3053
  1698
slouken@3053
  1699
        SDL_GetSurfaceScaleMode(surface, &scaleMode);
slouken@3053
  1700
        SDL_SetTextureScaleMode(textureID, scaleMode);
slouken@3053
  1701
    }
slouken@3053
  1702
slouken@2753
  1703
    if (SDL_ISPIXELFORMAT_INDEXED(format) && fmt->palette) {
slouken@2753
  1704
        SDL_SetTexturePalette(textureID, fmt->palette->colors, 0,
slouken@2753
  1705
                              fmt->palette->ncolors);
slouken@2753
  1706
    }
slouken@2753
  1707
    return textureID;
slouken@1895
  1708
}
slouken@1895
  1709
slouken@1895
  1710
static __inline__ SDL_Texture *
slouken@1895
  1711
SDL_GetTextureFromID(SDL_TextureID textureID)
slouken@1895
  1712
{
slouken@2753
  1713
    int hash;
slouken@2753
  1714
    SDL_Texture *texture;
slouken@1895
  1715
slouken@2753
  1716
    if (!_this) {
slouken@2753
  1717
        return NULL;
slouken@2753
  1718
    }
slouken@2753
  1719
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  1720
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@2753
  1721
         texture = texture->next) {
slouken@2753
  1722
        if (texture->id == textureID) {
slouken@2753
  1723
            return texture;
slouken@2753
  1724
        }
slouken@2753
  1725
    }
slouken@2753
  1726
    return NULL;
slouken@1895
  1727
}
slouken@1895
  1728
slouken@1895
  1729
int
slouken@1895
  1730
SDL_QueryTexture(SDL_TextureID textureID, Uint32 * format, int *access,
slouken@2753
  1731
                 int *w, int *h)
slouken@1895
  1732
{
slouken@2753
  1733
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1734
slouken@2753
  1735
    if (!texture) {
slouken@2753
  1736
        return -1;
slouken@2753
  1737
    }
slouken@2753
  1738
    if (format) {
slouken@2753
  1739
        *format = texture->format;
slouken@2753
  1740
    }
slouken@2753
  1741
    if (access) {
slouken@2753
  1742
        *access = texture->access;
slouken@2753
  1743
    }
slouken@2753
  1744
    if (w) {
slouken@2753
  1745
        *w = texture->w;
slouken@2753
  1746
    }
slouken@2753
  1747
    if (h) {
slouken@2753
  1748
        *h = texture->h;
slouken@2753
  1749
    }
slouken@2753
  1750
    return 0;
slouken@1895
  1751
}
slouken@1895
  1752
slouken@1895
  1753
int
slouken@1895
  1754
SDL_QueryTexturePixels(SDL_TextureID textureID, void **pixels, int *pitch)
slouken@1895
  1755
{
slouken@2753
  1756
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1757
    SDL_Renderer *renderer;
slouken@1895
  1758
slouken@2753
  1759
    if (!texture) {
slouken@2753
  1760
        return -1;
slouken@2753
  1761
    }
slouken@2753
  1762
    renderer = texture->renderer;
slouken@2753
  1763
    if (!renderer->QueryTexturePixels) {
slouken@2810
  1764
        SDL_Unsupported();
slouken@2753
  1765
        return -1;
slouken@2753
  1766
    }
slouken@2753
  1767
    return renderer->QueryTexturePixels(renderer, texture, pixels, pitch);
slouken@1895
  1768
}
slouken@1895
  1769
slouken@1895
  1770
int
slouken@1895
  1771
SDL_SetTexturePalette(SDL_TextureID textureID, const SDL_Color * colors,
slouken@2753
  1772
                      int firstcolor, int ncolors)
slouken@1895
  1773
{
slouken@2753
  1774
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1775
    SDL_Renderer *renderer;
slouken@1895
  1776
slouken@2753
  1777
    if (!texture) {
slouken@2753
  1778
        return -1;
slouken@2753
  1779
    }
slouken@2753
  1780
    renderer = texture->renderer;
slouken@2753
  1781
    if (!renderer->SetTexturePalette) {
slouken@2810
  1782
        SDL_Unsupported();
slouken@2753
  1783
        return -1;
slouken@2753
  1784
    }
slouken@2753
  1785
    return renderer->SetTexturePalette(renderer, texture, colors, firstcolor,
slouken@2753
  1786
                                       ncolors);
slouken@1895
  1787
}
slouken@1895
  1788
slouken@1895
  1789
int
slouken@1895
  1790
SDL_GetTexturePalette(SDL_TextureID textureID, SDL_Color * colors,
slouken@2753
  1791
                      int firstcolor, int ncolors)
slouken@1895
  1792
{
slouken@2753
  1793
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1794
    SDL_Renderer *renderer;
slouken@1895
  1795
slouken@2753
  1796
    if (!texture) {
slouken@2753
  1797
        return -1;
slouken@2753
  1798
    }
slouken@2753
  1799
    renderer = texture->renderer;
slouken@2753
  1800
    if (!renderer->GetTexturePalette) {
slouken@2810
  1801
        SDL_Unsupported();
slouken@2753
  1802
        return -1;
slouken@2753
  1803
    }
slouken@2753
  1804
    return renderer->GetTexturePalette(renderer, texture, colors, firstcolor,
slouken@2753
  1805
                                       ncolors);
slouken@1895
  1806
}
slouken@1895
  1807
slouken@1895
  1808
int
slouken@1985
  1809
SDL_SetTextureColorMod(SDL_TextureID textureID, Uint8 r, Uint8 g, Uint8 b)
slouken@1985
  1810
{
slouken@2753
  1811
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1812
    SDL_Renderer *renderer;
slouken@1985
  1813
slouken@2753
  1814
    if (!texture) {
slouken@2753
  1815
        return -1;
slouken@2753
  1816
    }
slouken@2753
  1817
    renderer = texture->renderer;
slouken@2753
  1818
    if (!renderer->SetTextureColorMod) {
slouken@2810
  1819
        SDL_Unsupported();
slouken@2753
  1820
        return -1;
slouken@2753
  1821
    }
slouken@2753
  1822
    if (r < 255 || g < 255 || b < 255) {
slouken@2753
  1823
        texture->modMode |= SDL_TEXTUREMODULATE_COLOR;
slouken@2753
  1824
    } else {
slouken@2753
  1825
        texture->modMode &= ~SDL_TEXTUREMODULATE_COLOR;
slouken@2753
  1826
    }
slouken@2753
  1827
    texture->r = r;
slouken@2753
  1828
    texture->g = g;
slouken@2753
  1829
    texture->b = b;
slouken@2753
  1830
    return renderer->SetTextureColorMod(renderer, texture);
slouken@1985
  1831
}
slouken@1985
  1832
slouken@1985
  1833
int
slouken@1985
  1834
SDL_GetTextureColorMod(SDL_TextureID textureID, Uint8 * r, Uint8 * g,
slouken@2753
  1835
                       Uint8 * b)
slouken@1985
  1836
{
slouken@2753
  1837
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1838
    SDL_Renderer *renderer;
slouken@1985
  1839
slouken@2753
  1840
    if (!texture) {
slouken@2753
  1841
        return -1;
slouken@2753
  1842
    }
slouken@2753
  1843
    renderer = texture->renderer;
slouken@2753
  1844
    if (r) {
slouken@2753
  1845
        *r = texture->r;
slouken@2753
  1846
    }
slouken@2753
  1847
    if (g) {
slouken@2753
  1848
        *g = texture->g;
slouken@2753
  1849
    }
slouken@2753
  1850
    if (b) {
slouken@2753
  1851
        *b = texture->b;
slouken@2753
  1852
    }
slouken@2753
  1853
    return 0;
slouken@1985
  1854
}
slouken@1985
  1855
slouken@1985
  1856
int
slouken@1985
  1857
SDL_SetTextureAlphaMod(SDL_TextureID textureID, Uint8 alpha)
slouken@1985
  1858
{
slouken@2753
  1859
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1860
    SDL_Renderer *renderer;
slouken@1985
  1861
slouken@2753
  1862
    if (!texture) {
slouken@2753
  1863
        return -1;
slouken@2753
  1864
    }
slouken@2753
  1865
    renderer = texture->renderer;
slouken@2753
  1866
    if (!renderer->SetTextureAlphaMod) {
slouken@2810
  1867
        SDL_Unsupported();
slouken@2753
  1868
        return -1;
slouken@2753
  1869
    }
slouken@2753
  1870
    if (alpha < 255) {
slouken@2753
  1871
        texture->modMode |= SDL_TEXTUREMODULATE_ALPHA;
slouken@2753
  1872
    } else {
slouken@2753
  1873
        texture->modMode &= ~SDL_TEXTUREMODULATE_ALPHA;
slouken@2753
  1874
    }
slouken@2753
  1875
    texture->a = alpha;
slouken@2753
  1876
    return renderer->SetTextureAlphaMod(renderer, texture);
slouken@1985
  1877
}
slouken@1985
  1878
slouken@1985
  1879
int
slouken@1985
  1880
SDL_GetTextureAlphaMod(SDL_TextureID textureID, Uint8 * alpha)
slouken@1985
  1881
{
slouken@2753
  1882
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  1883
slouken@2753
  1884
    if (!texture) {
slouken@2753
  1885
        return -1;
slouken@2753
  1886
    }
slouken@2753
  1887
    if (alpha) {
slouken@2753
  1888
        *alpha = texture->a;
slouken@2753
  1889
    }
slouken@2753
  1890
    return 0;
slouken@1985
  1891
}
slouken@1985
  1892
slouken@1985
  1893
int
slouken@1985
  1894
SDL_SetTextureBlendMode(SDL_TextureID textureID, int blendMode)
slouken@1985
  1895
{
slouken@2753
  1896
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1897
    SDL_Renderer *renderer;
slouken@1985
  1898
slouken@2753
  1899
    if (!texture) {
slouken@2753
  1900
        return -1;
slouken@2753
  1901
    }
slouken@2753
  1902
    renderer = texture->renderer;
slouken@2753
  1903
    if (!renderer->SetTextureBlendMode) {
slouken@2810
  1904
        SDL_Unsupported();
slouken@2753
  1905
        return -1;
slouken@2753
  1906
    }
slouken@2753
  1907
    texture->blendMode = blendMode;
slouken@2753
  1908
    return renderer->SetTextureBlendMode(renderer, texture);
slouken@1985
  1909
}
slouken@1985
  1910
slouken@1985
  1911
int
slouken@1985
  1912
SDL_GetTextureBlendMode(SDL_TextureID textureID, int *blendMode)
slouken@1985
  1913
{
slouken@2753
  1914
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  1915
slouken@2753
  1916
    if (!texture) {
slouken@2753
  1917
        return -1;
slouken@2753
  1918
    }
slouken@2753
  1919
    if (blendMode) {
slouken@2753
  1920
        *blendMode = texture->blendMode;
slouken@2753
  1921
    }
slouken@2753
  1922
    return 0;
slouken@1985
  1923
}
slouken@1985
  1924
slouken@1985
  1925
int
slouken@1985
  1926
SDL_SetTextureScaleMode(SDL_TextureID textureID, int scaleMode)
slouken@1985
  1927
{
slouken@2753
  1928
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1929
    SDL_Renderer *renderer;
slouken@1985
  1930
slouken@2753
  1931
    if (!texture) {
slouken@2753
  1932
        return -1;
slouken@2753
  1933
    }
slouken@2753
  1934
    renderer = texture->renderer;
slouken@2753
  1935
    if (!renderer->SetTextureScaleMode) {
slouken@2810
  1936
        SDL_Unsupported();
slouken@2753
  1937
        return -1;
slouken@2753
  1938
    }
slouken@2753
  1939
    texture->scaleMode = scaleMode;
slouken@2753
  1940
    return renderer->SetTextureScaleMode(renderer, texture);
slouken@1985
  1941
}
slouken@1985
  1942
slouken@1985
  1943
int
slouken@1985
  1944
SDL_GetTextureScaleMode(SDL_TextureID textureID, int *scaleMode)
slouken@1985
  1945
{
slouken@2753
  1946
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  1947
slouken@2753
  1948
    if (!texture) {
slouken@2753
  1949
        return -1;
slouken@2753
  1950
    }
slouken@2753
  1951
    if (scaleMode) {
slouken@2753
  1952
        *scaleMode = texture->scaleMode;
slouken@2753
  1953
    }
slouken@2753
  1954
    return 0;
slouken@1985
  1955
}
slouken@1985
  1956
slouken@1985
  1957
int
slouken@1895
  1958
SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect * rect,
slouken@2753
  1959
                  const void *pixels, int pitch)
slouken@1895
  1960
{
slouken@2753
  1961
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1962
    SDL_Renderer *renderer;
slouken@2753
  1963
    SDL_Rect full_rect;
slouken@1895
  1964
slouken@2753
  1965
    if (!texture) {
slouken@2753
  1966
        return -1;
slouken@2753
  1967
    }
slouken@2753
  1968
    renderer = texture->renderer;
slouken@2753
  1969
    if (!renderer->UpdateTexture) {
slouken@2810
  1970
        SDL_Unsupported();
slouken@2753
  1971
        return -1;
slouken@2753
  1972
    }
slouken@2753
  1973
    if (!rect) {
slouken@2753
  1974
        full_rect.x = 0;
slouken@2753
  1975
        full_rect.y = 0;
slouken@2753
  1976
        full_rect.w = texture->w;
slouken@2753
  1977
        full_rect.h = texture->h;
slouken@2753
  1978
        rect = &full_rect;
slouken@2753
  1979
    }
slouken@2753
  1980
    return renderer->UpdateTexture(renderer, texture, rect, pixels, pitch);
slouken@1895
  1981
}
slouken@1895
  1982
slouken@1895
  1983
int
slouken@1895
  1984
SDL_LockTexture(SDL_TextureID textureID, const SDL_Rect * rect, int markDirty,
slouken@2753
  1985
                void **pixels, int *pitch)
slouken@1895
  1986
{
slouken@2753
  1987
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1988
    SDL_Renderer *renderer;
slouken@2753
  1989
    SDL_Rect full_rect;
slouken@1895
  1990
slouken@2753
  1991
    if (!texture) {
slouken@2753
  1992
        return -1;
slouken@2753
  1993
    }
slouken@2753
  1994
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  1995
        SDL_SetError("SDL_LockTexture(): texture must be streaming");
slouken@2753
  1996
        return -1;
slouken@2753
  1997
    }
slouken@2753
  1998
    renderer = texture->renderer;
slouken@2753
  1999
    if (!renderer->LockTexture) {
slouken@2810
  2000
        SDL_Unsupported();
slouken@2753
  2001
        return -1;
slouken@2753
  2002
    }
slouken@2753
  2003
    if (!rect) {
slouken@2753
  2004
        full_rect.x = 0;
slouken@2753
  2005
        full_rect.y = 0;
slouken@2753
  2006
        full_rect.w = texture->w;
slouken@2753
  2007
        full_rect.h = texture->h;
slouken@2753
  2008
        rect = &full_rect;
slouken@2753
  2009
    }
slouken@2753
  2010
    return renderer->LockTexture(renderer, texture, rect, markDirty, pixels,
slouken@2753
  2011
                                 pitch);
slouken@1895
  2012
}
slouken@1895
  2013
slouken@1895
  2014
void
slouken@1895
  2015
SDL_UnlockTexture(SDL_TextureID textureID)
slouken@1895
  2016
{
slouken@2753
  2017
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2018
    SDL_Renderer *renderer;
slouken@1895
  2019
slouken@2753
  2020
    if (!texture) {
slouken@2753
  2021
        return;
slouken@2753
  2022
    }
slouken@2753
  2023
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  2024
        return;
slouken@2753
  2025
    }
slouken@2753
  2026
    renderer = texture->renderer;
slouken@2753
  2027
    if (!renderer->UnlockTexture) {
slouken@2753
  2028
        return;
slouken@2753
  2029
    }
slouken@2753
  2030
    renderer->UnlockTexture(renderer, texture);
slouken@1895
  2031
}
slouken@1895
  2032
slouken@1895
  2033
void
slouken@1895
  2034
SDL_DirtyTexture(SDL_TextureID textureID, int numrects,
slouken@2753
  2035
                 const SDL_Rect * rects)
slouken@1895
  2036
{
slouken@2753
  2037
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2038
    SDL_Renderer *renderer;
slouken@1895
  2039
slouken@2753
  2040
    if (!texture) {
slouken@2753
  2041
        return;
slouken@2753
  2042
    }
slouken@2753
  2043
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  2044
        return;
slouken@2753
  2045
    }
slouken@2753
  2046
    renderer = texture->renderer;
slouken@2753
  2047
    if (!renderer->DirtyTexture) {
slouken@2753
  2048
        return;
slouken@2753
  2049
    }
slouken@2753
  2050
    renderer->DirtyTexture(renderer, texture, numrects, rects);
slouken@1895
  2051
}
slouken@1895
  2052
slouken@1895
  2053
int
slouken@2884
  2054
SDL_SetRenderDrawColor(Uint8 r, Uint8 g, Uint8 b, Uint8 a)
slouken@2884
  2055
{
slouken@2884
  2056
    SDL_Renderer *renderer;
slouken@2884
  2057
slouken@2884
  2058
    if (!_this) {
slouken@2884
  2059
        SDL_UninitializedVideo();
slouken@2884
  2060
        return -1;
slouken@2884
  2061
    }
slouken@2884
  2062
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2063
    if (!renderer) {
slouken@2884
  2064
        return -1;
slouken@2884
  2065
    }
slouken@2884
  2066
    renderer->r = r;
slouken@2884
  2067
    renderer->g = g;
slouken@2884
  2068
    renderer->b = b;
slouken@2884
  2069
    renderer->a = a;
slouken@2927
  2070
    if (renderer->SetDrawColor) {
slouken@2927
  2071
        return renderer->SetDrawColor(renderer);
slouken@2927
  2072
    } else {
slouken@2927
  2073
        return 0;
slouken@2927
  2074
    }
slouken@2884
  2075
}
slouken@2884
  2076
slouken@2884
  2077
int
slouken@2885
  2078
SDL_GetRenderDrawColor(Uint8 * r, Uint8 * g, Uint8 * b, Uint8 * a)
slouken@2884
  2079
{
slouken@2884
  2080
    SDL_Renderer *renderer;
slouken@2884
  2081
slouken@2884
  2082
    if (!_this) {
slouken@2884
  2083
        SDL_UninitializedVideo();
slouken@2884
  2084
        return -1;
slouken@2884
  2085
    }
slouken@2884
  2086
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2087
    if (!renderer) {
slouken@2884
  2088
        return -1;
slouken@2884
  2089
    }
slouken@2884
  2090
    if (r) {
slouken@2884
  2091
        *r = renderer->r;
slouken@2884
  2092
    }
slouken@2884
  2093
    if (g) {
slouken@2884
  2094
        *g = renderer->g;
slouken@2884
  2095
    }
slouken@2884
  2096
    if (b) {
slouken@2884
  2097
        *b = renderer->b;
slouken@2884
  2098
    }
slouken@2884
  2099
    if (a) {
slouken@2884
  2100
        *a = renderer->a;
slouken@2884
  2101
    }
slouken@2928
  2102
    return 0;
slouken@2884
  2103
}
slouken@2884
  2104
slouken@2884
  2105
int
slouken@2884
  2106
SDL_SetRenderDrawBlendMode(int blendMode)
slouken@2884
  2107
{
slouken@2884
  2108
    SDL_Renderer *renderer;
slouken@2884
  2109
slouken@2884
  2110
    if (!_this) {
slouken@2884
  2111
        SDL_UninitializedVideo();
slouken@2884
  2112
        return -1;
slouken@2884
  2113
    }
slouken@2884
  2114
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2115
    if (!renderer) {
slouken@2884
  2116
        return -1;
slouken@2884
  2117
    }
slouken@2927
  2118
    renderer->blendMode = blendMode;
slouken@2927
  2119
    if (renderer->SetDrawBlendMode) {
slouken@2927
  2120
        return renderer->SetDrawBlendMode(renderer);
slouken@2927
  2121
    } else {
slouken@2927
  2122
        return 0;
slouken@2884
  2123
    }
slouken@2884
  2124
}
slouken@2884
  2125
slouken@2884
  2126
int
slouken@2884
  2127
SDL_GetRenderDrawBlendMode(int *blendMode)
slouken@2884
  2128
{
slouken@2884
  2129
    SDL_Renderer *renderer;
slouken@2884
  2130
slouken@2884
  2131
    if (!_this) {
slouken@2884
  2132
        SDL_UninitializedVideo();
slouken@2884
  2133
        return -1;
slouken@2884
  2134
    }
slouken@2884
  2135
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2136
    if (!renderer) {
slouken@2884
  2137
        return -1;
slouken@2884
  2138
    }
slouken@2884
  2139
    *blendMode = renderer->blendMode;
slouken@2884
  2140
    return 0;
slouken@2884
  2141
}
slouken@2884
  2142
slouken@2901
  2143
int
slouken@2901
  2144
SDL_RenderPoint(int x, int y)
slouken@2901
  2145
{
slouken@2901
  2146
    SDL_Renderer *renderer;
slouken@2901
  2147
    SDL_Window *window;
slouken@2901
  2148
slouken@2901
  2149
    if (!_this) {
slouken@2901
  2150
        SDL_UninitializedVideo();
slouken@2901
  2151
        return -1;
slouken@2901
  2152
    }
slouken@2901
  2153
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2901
  2154
    if (!renderer) {
slouken@2901
  2155
        return -1;
slouken@2901
  2156
    }
slouken@2901
  2157
    if (!renderer->RenderPoint) {
slouken@2901
  2158
        SDL_Unsupported();
slouken@2901
  2159
        return -1;
slouken@2901
  2160
    }
slouken@2901
  2161
    window = SDL_GetWindowFromID(renderer->window);
slouken@2901
  2162
    if (x < 0 || y < 0 || x >= window->w || y >= window->h) {
slouken@2901
  2163
        return 0;
slouken@2901
  2164
    }
slouken@2901
  2165
    return renderer->RenderPoint(renderer, x, y);
slouken@2901
  2166
}
slouken@2901
  2167
slouken@2901
  2168
int
slouken@2901
  2169
SDL_RenderLine(int x1, int y1, int x2, int y2)
slouken@2901
  2170
{
slouken@2901
  2171
    SDL_Renderer *renderer;
slouken@2901
  2172
    SDL_Window *window;
slouken@2901
  2173
    SDL_Rect real_rect;
slouken@2901
  2174
slouken@2901
  2175
    if (x1 == x2 && y1 == y2) {
slouken@2901
  2176
        return SDL_RenderPoint(x1, y1);
slouken@2901
  2177
    }
slouken@2901
  2178
slouken@2901
  2179
    if (!_this) {
slouken@2901
  2180
        SDL_UninitializedVideo();
slouken@2901
  2181
        return -1;
slouken@2901
  2182
    }
slouken@2901
  2183
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2901
  2184
    if (!renderer) {
slouken@2901
  2185
        return -1;
slouken@2901
  2186
    }
slouken@2901
  2187
    if (!renderer->RenderLine) {
slouken@2901
  2188
        SDL_Unsupported();
slouken@2901
  2189
        return -1;
slouken@2901
  2190
    }
slouken@2901
  2191
    window = SDL_GetWindowFromID(renderer->window);
slouken@2909
  2192
slouken@2901
  2193
    real_rect.x = 0;
slouken@2901
  2194
    real_rect.y = 0;
slouken@2901
  2195
    real_rect.w = window->w;
slouken@2901
  2196
    real_rect.h = window->h;
slouken@2910
  2197
    if (!SDL_IntersectRectAndLine(&real_rect, &x1, &y1, &x2, &y2)) {
slouken@2909
  2198
        return (0);
slouken@2901
  2199
    }
slouken@2901
  2200
    return renderer->RenderLine(renderer, x1, y1, x2, y2);
slouken@2901
  2201
}
slouken@2884
  2202
slouken@2884
  2203
int
slouken@2884
  2204
SDL_RenderFill(const SDL_Rect * rect)
slouken@1895
  2205
{
slouken@2753
  2206
    SDL_Renderer *renderer;
slouken@2753
  2207
    SDL_Window *window;
slouken@2753
  2208
    SDL_Rect real_rect;
slouken@1895
  2209
slouken@2753
  2210
    if (!_this) {
slouken@2753
  2211
        SDL_UninitializedVideo();
slouken@2753
  2212
        return -1;
slouken@2753
  2213
    }
slouken@2753
  2214
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  2215
    if (!renderer) {
slouken@2810
  2216
        return -1;
slouken@2810
  2217
    }
slouken@2814
  2218
    if (!renderer->RenderFill) {
slouken@2810
  2219
        SDL_Unsupported();
slouken@2753
  2220
        return -1;
slouken@2753
  2221
    }
slouken@2753
  2222
    window = SDL_GetWindowFromID(renderer->window);
slouken@2908
  2223
slouken@2753
  2224
    real_rect.x = 0;
slouken@2753
  2225
    real_rect.y = 0;
slouken@2753
  2226
    real_rect.w = window->w;
slouken@2753
  2227
    real_rect.h = window->h;
slouken@2753
  2228
    if (rect) {
slouken@2753
  2229
        if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
slouken@2753
  2230
            return 0;
slouken@2753
  2231
        }
slouken@2753
  2232
    }
slouken@2884
  2233
    return renderer->RenderFill(renderer, &real_rect);
slouken@2884
  2234
}
slouken@2884
  2235
slouken@2884
  2236
int
slouken@1895
  2237
SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect * srcrect,
slouken@2753
  2238
               const SDL_Rect * dstrect)
slouken@1895
  2239
{
slouken@2753
  2240
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2241
    SDL_Renderer *renderer;
slouken@2753
  2242
    SDL_Window *window;
slouken@2753
  2243
    SDL_Rect real_srcrect;
slouken@2753
  2244
    SDL_Rect real_dstrect;
slouken@1895
  2245
slouken@2753
  2246
    if (!texture || texture->renderer != SDL_CurrentDisplay.current_renderer) {
slouken@2753
  2247
        return -1;
slouken@2753
  2248
    }
slouken@2753
  2249
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  2250
    if (!renderer) {
slouken@2810
  2251
        return -1;
slouken@2810
  2252
    }
slouken@2810
  2253
    if (!renderer->RenderCopy) {
slouken@2810
  2254
        SDL_Unsupported();
slouken@2753
  2255
        return -1;
slouken@2753
  2256
    }
slouken@2753
  2257
    window = SDL_GetWindowFromID(renderer->window);
slouken@2908
  2258
slouken@2908
  2259
    real_srcrect.x = 0;
slouken@2908
  2260
    real_srcrect.y = 0;
slouken@2908
  2261
    real_srcrect.w = texture->w;
slouken@2908
  2262
    real_srcrect.h = texture->h;
slouken@2753
  2263
    if (srcrect) {
slouken@2908
  2264
        if (!SDL_IntersectRect(srcrect, &real_srcrect, &real_srcrect)) {
slouken@2908
  2265
            return 0;
slouken@2908
  2266
        }
slouken@2753
  2267
    }
slouken@2908
  2268
slouken@2908
  2269
    real_dstrect.x = 0;
slouken@2908
  2270
    real_dstrect.y = 0;
slouken@2908
  2271
    real_dstrect.w = window->w;
slouken@2908
  2272
    real_dstrect.h = window->h;
slouken@2753
  2273
    if (dstrect) {
slouken@2908
  2274
        if (!SDL_IntersectRect(dstrect, &real_dstrect, &real_dstrect)) {
slouken@2908
  2275
            return 0;
slouken@2908
  2276
        }
slouken@2912
  2277
        /* Clip srcrect by the same amount as dstrect was clipped */
slouken@2912
  2278
        if (dstrect->w != real_dstrect.w) {
slouken@2912
  2279
            int deltax = (real_dstrect.x - dstrect->x);
slouken@2912
  2280
            int deltaw = (real_dstrect.w - dstrect->w);
slouken@2912
  2281
            real_srcrect.x += (deltax * dstrect->w) / real_srcrect.w;
slouken@2912
  2282
            real_srcrect.w += (deltaw * dstrect->w) / real_srcrect.w;
slouken@2912
  2283
        }
slouken@2912
  2284
        if (dstrect->h != real_dstrect.h) {
slouken@2912
  2285
            int deltay = (real_dstrect.y - dstrect->y);
slouken@2912
  2286
            int deltah = (real_dstrect.h - dstrect->h);
slouken@2912
  2287
            real_srcrect.y += (deltay * dstrect->h) / real_srcrect.h;
slouken@2912
  2288
            real_srcrect.h += (deltah * dstrect->h) / real_srcrect.h;
slouken@2912
  2289
        }
slouken@2753
  2290
    }
slouken@1895
  2291
slouken@2753
  2292
    return renderer->RenderCopy(renderer, texture, &real_srcrect,
slouken@2753
  2293
                                &real_dstrect);
slouken@1895
  2294
}
slouken@1895
  2295
slouken@1895
  2296
void
slouken@1895
  2297
SDL_RenderPresent(void)
slouken@1895
  2298
{
slouken@2753
  2299
    SDL_Renderer *renderer;
slouken@1895
  2300
slouken@2753
  2301
    if (!_this) {
slouken@2753
  2302
        SDL_UninitializedVideo();
slouken@2753
  2303
        return;
slouken@2753
  2304
    }
slouken@2753
  2305
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2753
  2306
    if (!renderer || !renderer->RenderPresent) {
slouken@2753
  2307
        return;
slouken@2753
  2308
    }
slouken@2753
  2309
    renderer->RenderPresent(renderer);
slouken@1895
  2310
}
slouken@1895
  2311
slouken@1895
  2312
void
slouken@1895
  2313
SDL_DestroyTexture(SDL_TextureID textureID)
slouken@1895
  2314
{
slouken@2753
  2315
    int hash;
slouken@2753
  2316
    SDL_Texture *prev, *texture;
slouken@2753
  2317
    SDL_Renderer *renderer;
slouken@1895
  2318
slouken@2753
  2319
    if (!_this) {
slouken@2753
  2320
        SDL_UninitializedVideo();
slouken@2753
  2321
        return;
slouken@2753
  2322
    }
slouken@2753
  2323
    /* Look up the texture in the hash table */
slouken@2753
  2324
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  2325
    prev = NULL;
slouken@2753
  2326
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@2753
  2327
         prev = texture, texture = texture->next) {
slouken@2753
  2328
        if (texture->id == textureID) {
slouken@2753
  2329
            break;
slouken@2753
  2330
        }
slouken@2753
  2331
    }
slouken@2753
  2332
    if (!texture) {
slouken@2753
  2333
        return;
slouken@2753
  2334
    }
slouken@2753
  2335
    /* Unlink the texture from the list */
slouken@2753
  2336
    if (prev) {
slouken@2753
  2337
        prev->next = texture->next;
slouken@2753
  2338
    } else {
slouken@2753
  2339
        SDL_CurrentDisplay.textures[hash] = texture->next;
slouken@2753
  2340
    }
slouken@1895
  2341
slouken@2753
  2342
    /* Free the texture */
slouken@2753
  2343
    renderer = texture->renderer;
slouken@2753
  2344
    renderer->DestroyTexture(renderer, texture);
slouken@2753
  2345
    SDL_free(texture);
slouken@1895
  2346
}
slouken@1895
  2347
slouken@1895
  2348
void
slouken@1895
  2349
SDL_DestroyRenderer(SDL_WindowID windowID)
slouken@1895
  2350
{
slouken@2753
  2351
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  2352
    SDL_Renderer *renderer;
slouken@2753
  2353
    int i;
slouken@1895
  2354
slouken@2753
  2355
    if (!window) {
slouken@2753
  2356
        return;
slouken@2753
  2357
    }
slouken@2753
  2358
    renderer = window->renderer;
slouken@2753
  2359
    if (!renderer) {
slouken@2753
  2360
        return;
slouken@2753
  2361
    }
slouken@2753
  2362
    /* Free existing textures for this renderer */
slouken@2753
  2363
    for (i = 0; i < SDL_arraysize(SDL_CurrentDisplay.textures); ++i) {
slouken@2753
  2364
        SDL_Texture *texture;
slouken@2753
  2365
        SDL_Texture *prev = NULL;
slouken@2753
  2366
        SDL_Texture *next;
slouken@2753
  2367
        for (texture = SDL_CurrentDisplay.textures[i]; texture;
slouken@2753
  2368
             texture = next) {
slouken@2753
  2369
            next = texture->next;
slouken@2753
  2370
            if (texture->renderer == renderer) {
slouken@2753
  2371
                if (prev) {
slouken@2753
  2372
                    prev->next = next;
slouken@2753
  2373
                } else {
slouken@2753
  2374
                    SDL_CurrentDisplay.textures[i] = next;
slouken@2753
  2375
                }
slouken@2753
  2376
                renderer->DestroyTexture(renderer, texture);
slouken@2753
  2377
                SDL_free(texture);
slouken@2753
  2378
            } else {
slouken@2753
  2379
                prev = texture;
slouken@2753
  2380
            }
slouken@2753
  2381
        }
slouken@2753
  2382
    }
slouken@1895
  2383
slouken@2753
  2384
    /* Free the renderer instance */
slouken@2753
  2385
    renderer->DestroyRenderer(renderer);
slouken@1895
  2386
slouken@2753
  2387
    /* Clear references */
slouken@2753
  2388
    window->renderer = NULL;
slouken@2753
  2389
    if (SDL_CurrentDisplay.current_renderer == renderer) {
slouken@2753
  2390
        SDL_CurrentDisplay.current_renderer = NULL;
slouken@2753
  2391
    }
slouken@1895
  2392
}
slouken@1895
  2393
slouken@3025
  2394
SDL_bool
slouken@3025
  2395
SDL_IsScreenSaverEnabled()
slouken@3025
  2396
{
slouken@3025
  2397
    if (!_this) {
slouken@3025
  2398
        return SDL_TRUE;
slouken@3025
  2399
    }
slouken@3025
  2400
    return _this->suspend_screensaver ? SDL_FALSE : SDL_TRUE;
slouken@3025
  2401
}
slouken@3025
  2402
slouken@3025
  2403
void
slouken@3025
  2404
SDL_EnableScreenSaver()
slouken@3025
  2405
{
slouken@3025
  2406
    if (!_this) {
slouken@3025
  2407
        return;
slouken@3025
  2408
    }
slouken@3025
  2409
    if (!_this->suspend_screensaver) {
slouken@3025
  2410
        return;
slouken@3025
  2411
    }
slouken@3025
  2412
    _this->suspend_screensaver = SDL_FALSE;
slouken@3025
  2413
    if (_this->SuspendScreenSaver) {
slouken@3025
  2414
        _this->SuspendScreenSaver(_this);
slouken@3025
  2415
    }
slouken@3025
  2416
}
slouken@3025
  2417
slouken@3025
  2418
void
slouken@3025
  2419
SDL_DisableScreenSaver()
slouken@3025
  2420
{
slouken@3025
  2421
    if (!_this) {
slouken@3025
  2422
        return;
slouken@3025
  2423
    }
slouken@3025
  2424
    if (_this->suspend_screensaver) {
slouken@3025
  2425
        return;
slouken@3025
  2426
    }
slouken@3025
  2427
    _this->suspend_screensaver = SDL_TRUE;
slouken@3025
  2428
    if (_this->SuspendScreenSaver) {
slouken@3025
  2429
        _this->SuspendScreenSaver(_this);
slouken@3025
  2430
    }
slouken@3025
  2431
}
slouken@3025
  2432
slouken@1895
  2433
void
slouken@1895
  2434
SDL_VideoQuit(void)
slouken@1895
  2435
{
slouken@2753
  2436
    int i, j;
slouken@1895
  2437
slouken@2753
  2438
    if (!_this) {
slouken@2753
  2439
        return;
slouken@2753
  2440
    }
slouken@2753
  2441
    /* Halt event processing before doing anything else */
slouken@2753
  2442
    SDL_StopEventLoop();
slouken@3029
  2443
    SDL_EnableScreenSaver();
slouken@1895
  2444
slouken@2753
  2445
    /* Clean up the system video */
slouken@2753
  2446
    for (i = _this->num_displays; i--;) {
slouken@2753
  2447
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2448
        for (j = display->num_windows; j--;) {
slouken@2753
  2449
            SDL_DestroyWindow(display->windows[i].id);
slouken@2753
  2450
        }
slouken@2753
  2451
        if (display->windows) {
slouken@2753
  2452
            SDL_free(display->windows);
slouken@2753
  2453
            display->windows = NULL;
slouken@2753
  2454
        }
slouken@2753
  2455
        display->num_windows = 0;
slouken@2753
  2456
        if (display->render_drivers) {
slouken@2753
  2457
            SDL_free(display->render_drivers);
slouken@2753
  2458
            display->render_drivers = NULL;
slouken@2753
  2459
        }
slouken@2753
  2460
        display->num_render_drivers = 0;
slouken@2753
  2461
    }
slouken@2753
  2462
    _this->VideoQuit(_this);
slouken@1895
  2463
slouken@2753
  2464
    for (i = _this->num_displays; i--;) {
slouken@2753
  2465
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2466
        for (j = display->num_display_modes; j--;) {
slouken@2753
  2467
            if (display->display_modes[j].driverdata) {
slouken@2753
  2468
                SDL_free(display->display_modes[j].driverdata);
slouken@2753
  2469
                display->display_modes[j].driverdata = NULL;
slouken@2753
  2470
            }
slouken@2753
  2471
        }
slouken@2753
  2472
        if (display->display_modes) {
slouken@2753
  2473
            SDL_free(display->display_modes);
slouken@2753
  2474
            display->display_modes = NULL;
slouken@2753
  2475
        }
slouken@2753
  2476
        if (display->desktop_mode.driverdata) {
slouken@2753
  2477
            SDL_free(display->desktop_mode.driverdata);
slouken@2753
  2478
            display->desktop_mode.driverdata = NULL;
slouken@2753
  2479
        }
slouken@2753
  2480
        if (display->palette) {
slouken@2753
  2481
            SDL_FreePalette(display->palette);
slouken@2753
  2482
            display->palette = NULL;
slouken@2753
  2483
        }
slouken@2753
  2484
        if (display->gamma) {
slouken@2753
  2485
            SDL_free(display->gamma);
slouken@2753
  2486
            display->gamma = NULL;
slouken@2753
  2487
        }
slouken@2753
  2488
        if (display->driverdata) {
slouken@2753
  2489
            SDL_free(display->driverdata);
slouken@2753
  2490
            display->driverdata = NULL;
slouken@2753
  2491
        }
slouken@2753
  2492
    }
slouken@2753
  2493
    if (_this->displays) {
slouken@2753
  2494
        SDL_free(_this->displays);
slouken@2753
  2495
        _this->displays = NULL;
slouken@2753
  2496
    }
slouken@2753
  2497
    _this->free(_this);
slouken@2753
  2498
    _this = NULL;
slouken@0
  2499
}
slouken@0
  2500
slouken@1895
  2501
int
slouken@1895
  2502
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2503
{
slouken@2753
  2504
    int retval;
slouken@0
  2505
slouken@2753
  2506
    if (!_this) {
slouken@2753
  2507
        SDL_UninitializedVideo();
slouken@2753
  2508
        return -1;
slouken@2753
  2509
    }
slouken@3057
  2510
    if (_this->gl_config.driver_loaded) {
slouken@3057
  2511
        if (path && SDL_strcmp(path, _this->gl_config.driver_path) != 0) {
slouken@3057
  2512
            SDL_SetError("OpenGL library already loaded");
slouken@3057
  2513
            return -1;
slouken@3057
  2514
        }
slouken@3057
  2515
        retval = 0;
slouken@3057
  2516
    } else {
slouken@3057
  2517
        if (!_this->GL_LoadLibrary) {
slouken@3057
  2518
            SDL_SetError("No dynamic GL support in video driver");
slouken@3057
  2519
            return -1;
slouken@3057
  2520
        }
slouken@2753
  2521
        retval = _this->GL_LoadLibrary(_this, path);
slouken@3057
  2522
    }
slouken@3057
  2523
    if (retval == 0) {
slouken@3057
  2524
        ++_this->gl_config.driver_loaded;
slouken@2753
  2525
    }
slouken@2753
  2526
    return (retval);
slouken@0
  2527
}
slouken@0
  2528
slouken@2753
  2529
void *
slouken@1895
  2530
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2531
{
slouken@2753
  2532
    void *func;
slouken@0
  2533
slouken@2753
  2534
    if (!_this) {
slouken@2753
  2535
        SDL_UninitializedVideo();
slouken@2753
  2536
        return NULL;
slouken@2753
  2537
    }
slouken@2753
  2538
    func = NULL;
slouken@2753
  2539
    if (_this->GL_GetProcAddress) {
slouken@2753
  2540
        if (_this->gl_config.driver_loaded) {
slouken@2753
  2541
            func = _this->GL_GetProcAddress(_this, proc);
slouken@2753
  2542
        } else {
slouken@2753
  2543
            SDL_SetError("No GL driver has been loaded");
slouken@2753
  2544
        }
slouken@2753
  2545
    } else {
slouken@2753
  2546
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2547
    }
slouken@2753
  2548
    return func;
slouken@0
  2549
}
slouken@0
  2550
slouken@3057
  2551
void
slouken@3057
  2552
SDL_GL_UnloadLibrary(void)
slouken@3057
  2553
{
slouken@3057
  2554
    if (!_this) {
slouken@3057
  2555
        SDL_UninitializedVideo();
slouken@3057
  2556
        return;
slouken@3057
  2557
    }
slouken@3057
  2558
    if (_this->gl_config.driver_loaded > 0) {
slouken@3057
  2559
        if (--_this->gl_config.driver_loaded > 0) {
slouken@3057
  2560
            return;
slouken@3057
  2561
        }
slouken@3057
  2562
        if (_this->GL_UnloadLibrary) {
slouken@3057
  2563
            _this->GL_UnloadLibrary(_this);
slouken@3057
  2564
        }
slouken@3057
  2565
    }
slouken@3057
  2566
}
slouken@3057
  2567
slouken@1926
  2568
SDL_bool
slouken@1926
  2569
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2570
{
hfutrell@2745
  2571
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2572
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@2753
  2573
    const char *extensions;
slouken@2753
  2574
    const char *start;
slouken@2753
  2575
    const char *where, *terminator;
slouken@1926
  2576
slouken@2753
  2577
    /* Extension names should not have spaces. */
slouken@2753
  2578
    where = SDL_strchr(extension, ' ');
slouken@2753
  2579
    if (where || *extension == '\0') {
slouken@2753
  2580
        return SDL_FALSE;
slouken@2753
  2581
    }
slouken@2753
  2582
    /* See if there's an environment variable override */
slouken@2753
  2583
    start = SDL_getenv(extension);
slouken@2753
  2584
    if (start && *start == '0') {
slouken@2753
  2585
        return SDL_FALSE;
slouken@2753
  2586
    }
slouken@2753
  2587
    /* Lookup the available extensions */
slouken@2753
  2588
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@2753
  2589
    if (glGetStringFunc) {
slouken@2753
  2590
        extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@2753
  2591
    } else {
slouken@2753
  2592
        extensions = NULL;
slouken@2753
  2593
    }
slouken@2753
  2594
    if (!extensions) {
slouken@2753
  2595
        return SDL_FALSE;
slouken@2753
  2596
    }
slouken@2753
  2597
    /*
slouken@2753
  2598
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@2753
  2599
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@2753
  2600
     */
slouken@1926
  2601
slouken@2753
  2602
    start = extensions;
slouken@1926
  2603
slouken@2753
  2604
    for (;;) {
slouken@2753
  2605
        where = SDL_strstr(start, extension);
slouken@2753
  2606
        if (!where)
slouken@2753
  2607
            break;
slouken@1926
  2608
slouken@2753
  2609
        terminator = where + SDL_strlen(extension);
slouken@2753
  2610
        if (where == start || *(where - 1) == ' ')
slouken@2753
  2611
            if (*terminator == ' ' || *terminator == '\0')
slouken@2753
  2612
                return SDL_TRUE;
slouken@1926
  2613
slouken@2753
  2614
        start = terminator;
slouken@2753
  2615
    }
slouken@2753
  2616
    return SDL_FALSE;
slouken@1926
  2617
#else
slouken@2753
  2618
    return SDL_FALSE;
slouken@1926
  2619
#endif
slouken@1926
  2620
}
slouken@1926
  2621
slouken@1895
  2622
int
slouken@1895
  2623
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2624
{
hfutrell@2745
  2625
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2626
    int retval;
slouken@0
  2627
slouken@2753
  2628
    if (!_this) {
slouken@2753
  2629
        SDL_UninitializedVideo();
slouken@2753
  2630
        return -1;
slouken@2753
  2631
    }
slouken@2753
  2632
    retval = 0;
slouken@2753
  2633
    switch (attr) {
slouken@2753
  2634
    case SDL_GL_RED_SIZE:
slouken@2753
  2635
        _this->gl_config.red_size = value;
slouken@2753
  2636
        break;
slouken@2753
  2637
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2638
        _this->gl_config.green_size = value;
slouken@2753
  2639
        break;
slouken@2753
  2640
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2641
        _this->gl_config.blue_size = value;
slouken@2753
  2642
        break;
slouken@2753
  2643
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2644
        _this->gl_config.alpha_size = value;
slouken@2753
  2645
        break;
slouken@2753
  2646
    case SDL_GL_DOUBLEBUFFER:
slouken@2753
  2647
        _this->gl_config.double_buffer = value;
slouken@2753
  2648
        break;
slouken@2753
  2649
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2650
        _this->gl_config.buffer_size = value;
slouken@2753
  2651
        break;
slouken@2753
  2652
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2653
        _this->gl_config.depth_size = value;
slouken@2753
  2654
        break;
slouken@2753
  2655
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2656
        _this->gl_config.stencil_size = value;
slouken@2753
  2657
        break;
slouken@2753
  2658
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2659
        _this->gl_config.accum_red_size = value;
slouken@2753
  2660
        break;
slouken@2753
  2661
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2662
        _this->gl_config.accum_green_size = value;
slouken@2753
  2663
        break;
slouken@2753
  2664
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2665
        _this->gl_config.accum_blue_size = value;
slouken@2753
  2666
        break;
slouken@2753
  2667
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2668
        _this->gl_config.accum_alpha_size = value;
slouken@2753
  2669
        break;
slouken@2753
  2670
    case SDL_GL_STEREO:
slouken@2753
  2671
        _this->gl_config.stereo = value;
slouken@2753
  2672
        break;
slouken@2753
  2673
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@2753
  2674
        _this->gl_config.multisamplebuffers = value;
slouken@2753
  2675
        break;
slouken@2753
  2676
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@2753
  2677
        _this->gl_config.multisamplesamples = value;
slouken@2753
  2678
        break;
slouken@2753
  2679
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2680
        _this->gl_config.accelerated = value;
slouken@2753
  2681
        break;
slouken@2753
  2682
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2683
        _this->gl_config.retained_backing = value;
slouken@2753
  2684
        break;
slouken@2753
  2685
    default:
slouken@2753
  2686
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2687
        retval = -1;
slouken@2753
  2688
        break;
slouken@2753
  2689
    }
slouken@2753
  2690
    return retval;
slouken@1936
  2691
#else
slouken@2753
  2692
    SDL_Unsupported();
slouken@2753
  2693
    return -1;
slouken@2753
  2694
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2695
}
slouken@0
  2696
slouken@1895
  2697
int
slouken@1936
  2698
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2699
{
hfutrell@2745
  2700
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2701
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@2753
  2702
    GLenum attrib = 0;
slouken@1912
  2703
slouken@2753
  2704
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@2753
  2705
    if (!glGetIntegervFunc) {
slouken@2753
  2706
        return -1;
slouken@2753
  2707
    }
slouken@2753
  2708
    switch (attr) {
slouken@2753
  2709
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2710
        *value = _this->gl_config.retained_backing;
slouken@2753
  2711
        return 0;
slouken@2753
  2712
    case SDL_GL_RED_SIZE:
slouken@2753
  2713
        attrib = GL_RED_BITS;
slouken@2753
  2714
        break;
slouken@2753
  2715
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2716
        attrib = GL_BLUE_BITS;
slouken@2753
  2717
        break;
slouken@2753
  2718
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2719
        attrib = GL_GREEN_BITS;
slouken@2753
  2720
        break;
slouken@2753
  2721
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2722
        attrib = GL_ALPHA_BITS;
slouken@2753
  2723
        break;
slouken@2753
  2724
    case SDL_GL_DOUBLEBUFFER:
hfutrell@2745
  2725
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2726
        attrib = GL_DOUBLEBUFFER;
slouken@2753
  2727
        break;
hfutrell@2745
  2728
#else
slouken@2753
  2729
        /*
slouken@2753
  2730
         * I believe double buffering is the only option in OpenGL ES
slouken@2753
  2731
         * -- in any case, GL_DOUBLEBUFFER doesn't exist
slouken@2753
  2732
         */
slouken@2753
  2733
        *value = 1;
slouken@2753
  2734
        return 0;
hfutrell@2745
  2735
#endif
slouken@2753
  2736
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2737
        attrib = GL_DEPTH_BITS;
slouken@2753
  2738
        break;
slouken@2753
  2739
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2740
        attrib = GL_STENCIL_BITS;
slouken@2753
  2741
        break;
hfutrell@2745
  2742
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2743
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2744
        attrib = GL_ACCUM_RED_BITS;
slouken@2753
  2745
        break;
slouken@2753
  2746
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2747
        attrib = GL_ACCUM_GREEN_BITS;
slouken@2753
  2748
        break;
slouken@2753
  2749
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2750
        attrib = GL_ACCUM_BLUE_BITS;
slouken@2753
  2751
        break;
slouken@2753
  2752
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2753
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@2753
  2754
        break;
slouken@2753
  2755
    case SDL_GL_STEREO:
slouken@2753
  2756
        attrib = GL_STEREO;
slouken@2753
  2757
        break;
hfutrell@2745
  2758
#else
slouken@2753
  2759
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2760
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2761
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2762
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2763
    case SDL_GL_STEREO:
slouken@2753
  2764
        /* none of these are supported in OpenGL ES */
slouken@2753
  2765
        *value = 0;
slouken@2753
  2766
        return 0;
hfutrell@2745
  2767
#endif
slouken@2753
  2768
    case SDL_GL_MULTISAMPLEBUFFERS:
hfutrell@2745
  2769
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2770
        attrib = GL_SAMPLE_BUFFERS_ARB;
hfutrell@2745
  2771
#else
slouken@2753
  2772
        attrib = GL_SAMPLE_BUFFERS;
hfutrell@2745
  2773
#endif
slouken@2753
  2774
        break;
slouken@2753
  2775
    case SDL_GL_MULTISAMPLESAMPLES:
hfutrell@2745
  2776
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2777
        attrib = GL_SAMPLES_ARB;
hfutrell@2745
  2778
#else
slouken@2753
  2779
        attrib = GL_SAMPLES;
hfutrell@2745
  2780
#endif
slouken@2753
  2781
        break;
slouken@2753
  2782
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2783
        {
slouken@2753
  2784
            GLint bits = 0;
slouken@2753
  2785
            GLint component;
slouken@1936
  2786
slouken@2753
  2787
            /*
slouken@2753
  2788
             * there doesn't seem to be a single flag in OpenGL
slouken@2753
  2789
             * for this!
slouken@2753
  2790
             */
slouken@2753
  2791
            glGetIntegervFunc(GL_RED_BITS, &component);
slouken@2753
  2792
            bits += component;
slouken@2753
  2793
            glGetIntegervFunc(GL_GREEN_BITS, &component);
slouken@2753
  2794
            bits += component;
slouken@2753
  2795
            glGetIntegervFunc(GL_BLUE_BITS, &component);
slouken@2753
  2796
            bits += component;
slouken@2753
  2797
            glGetIntegervFunc(GL_ALPHA_BITS, &component);
slouken@2753
  2798
            bits += component;
slouken@1936
  2799
slouken@2753
  2800
            *value = bits;
slouken@2753
  2801
            return 0;
slouken@2753
  2802
        }
slouken@2753
  2803
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2804
        {
slouken@2753
  2805
            /* FIXME: How do we get this information? */
slouken@2753
  2806
            *value = (_this->gl_config.accelerated != 0);
slouken@2753
  2807
            return 0;
slouken@2753
  2808
        }
slouken@2753
  2809
    default:
slouken@2753
  2810
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2811
        return -1;
slouken@2753
  2812
    }
slouken@0
  2813
slouken@2753
  2814
    glGetIntegervFunc(attrib, (GLint *) value);
slouken@2753
  2815
    return 0;
slouken@1936
  2816
#else
slouken@2753
  2817
    SDL_Unsupported();
slouken@2753
  2818
    return -1;
slouken@2753
  2819
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2820
}
slouken@0
  2821
slouken@1912
  2822
SDL_GLContext
slouken@1912
  2823
SDL_GL_CreateContext(SDL_WindowID windowID)
slouken@1912
  2824
{
slouken@2753
  2825
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2826
slouken@2753
  2827
    if (!window) {
slouken@2753
  2828
        return NULL;
slouken@2753
  2829
    }
slouken@2753
  2830
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2831
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2832
        return NULL;
slouken@2753
  2833
    }
slouken@2753
  2834
    return _this->GL_CreateContext(_this, window);
slouken@1912
  2835
}
slouken@1912
  2836
slouken@1912
  2837
int
slouken@1912
  2838
SDL_GL_MakeCurrent(SDL_WindowID windowID, SDL_GLContext context)
slouken@1912
  2839
{
slouken@2753
  2840
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2841
slouken@2753
  2842
    if (window && !(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2843
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2844
        return -1;
slouken@2753
  2845
    }
slouken@2753
  2846
    if (!context) {
slouken@2753
  2847
        window = NULL;
slouken@2753
  2848
    }
slouken@2753
  2849
    return _this->GL_MakeCurrent(_this, window, context);
slouken@1912
  2850
}
slouken@1912
  2851
slouken@1912
  2852
int
slouken@1912
  2853
SDL_GL_SetSwapInterval(int interval)
slouken@1912
  2854
{
slouken@2753
  2855
    if (!_this) {
slouken@2753
  2856
        SDL_UninitializedVideo();
slouken@2753
  2857
        return -1;
slouken@2753
  2858
    }
slouken@2753
  2859
    if (_this->GL_SetSwapInterval) {
slouken@2753
  2860
        return _this->GL_SetSwapInterval(_this, interval);
slouken@2753
  2861
    } else {
slouken@2753
  2862
        SDL_SetError("Setting the swap interval is not supported");
slouken@2753
  2863
        return -1;
slouken@2753
  2864
    }
slouken@1912
  2865
}
slouken@1912
  2866
slouken@1912
  2867
int
slouken@1912
  2868
SDL_GL_GetSwapInterval(void)
slouken@1912
  2869
{
slouken@2753
  2870
    if (!_this) {
slouken@2753
  2871
        SDL_UninitializedVideo();
slouken@2753
  2872
        return -1;
slouken@2753
  2873
    }
slouken@2753
  2874
    if (_this->GL_GetSwapInterval) {
slouken@2753
  2875
        return _this->GL_GetSwapInterval(_this);
slouken@2753
  2876
    } else {
slouken@2753
  2877
        SDL_SetError("Getting the swap interval is not supported");
slouken@2753
  2878
        return -1;
slouken@2753
  2879
    }
slouken@1912
  2880
}
slouken@1912
  2881
slouken@1895
  2882
void
slouken@1912
  2883
SDL_GL_SwapWindow(SDL_WindowID windowID)
slouken@0
  2884
{
slouken@2753
  2885
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2886
slouken@2753
  2887
    if (!window) {
slouken@2753
  2888
        return;
slouken@2753
  2889
    }
slouken@2753
  2890
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2891
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2892
        return;
slouken@2753
  2893
    }
slouken@2753
  2894
    _this->GL_SwapWindow(_this, window);
slouken@1912
  2895
}
slouken@1912
  2896
slouken@1912
  2897
void
slouken@1912
  2898
SDL_GL_DeleteContext(SDL_GLContext context)
slouken@1912
  2899
{
slouken@2753
  2900
    if (!_this || !context) {
slouken@2753
  2901
        return;
slouken@2753
  2902
    }
slouken@2753
  2903
    _this->GL_MakeCurrent(_this, NULL, NULL);
slouken@2753
  2904
    _this->GL_DeleteContext(_this, context);
slouken@0
  2905
}
slouken@0
  2906
slouken@1895
  2907
#if 0                           // FIXME
hfutrell@2744
  2908
/*
hfutrell@2744
  2909
 * Utility function used by SDL_WM_SetIcon(); flags & 1 for color key, flags
hfutrell@2744
  2910
 * & 2 for alpha channel.
hfutrell@2744
  2911
 */
slouken@1895
  2912
static void
slouken@1895
  2913
CreateMaskFromColorKeyOrAlpha(SDL_Surface * icon, Uint8 * mask, int flags)
slouken@0
  2914
{
slouken@2753
  2915
    int x, y;
slouken@2753
  2916
    Uint32 colorkey;
slouken@0
  2917
#define SET_MASKBIT(icon, x, y, mask) \
slouken@0
  2918
	mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8)))
slouken@0
  2919
slouken@2753
  2920
    colorkey = icon->format->colorkey;