src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Tue, 23 Dec 2008 02:23:18 +0000
changeset 2909 3da0bb421d83
parent 2908 aa6ba38c1714
child 2910 27d8b12e0e8e
permissions -rw-r--r--
Added line clipping
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2009 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#include "SDL_config.h"
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/* The high-level video driver subsystem */
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#include "SDL.h"
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#include "SDL_sysvideo.h"
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#include "SDL_blit.h"
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#include "SDL_pixels_c.h"
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#include "SDL_renderer_gl.h"
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#include "SDL_renderer_gles.h"
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#include "SDL_renderer_sw.h"
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#include "../events/SDL_sysevents.h"
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#include "../events/SDL_events_c.h"
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#if SDL_VIDEO_OPENGL_ES
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#include "SDL_opengles.h"
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#endif /* SDL_VIDEO_OPENGL_ES */
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#if SDL_VIDEO_OPENGL
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#include "SDL_opengl.h"
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/* On Windows, windows.h defines CreateWindow */
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#ifdef CreateWindow
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#undef CreateWindow
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#endif
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#endif /* SDL_VIDEO_OPENGL */
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/* Available video drivers */
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static VideoBootStrap *bootstrap[] = {
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#if SDL_VIDEO_DRIVER_COCOA
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    &COCOA_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_X11
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    &X11_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_NANOX
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    &NX_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_IPOD
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    &iPod_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_WSCONS
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    &WSCONS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_FBCON
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    &FBCON_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DIRECTFB
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    &DirectFB_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_PS2GS
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    &PS2GS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_VGL
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    &VGL_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_SVGALIB
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    &SVGALIB_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_GAPI
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    &GAPI_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_WIN32
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    &WIN32_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_BWINDOW
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    &BWINDOW_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_PHOTON
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    &ph_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_EPOC
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    &EPOC_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_XBIOS
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    &XBIOS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_GEM
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    &GEM_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DC
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    &DC_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_RISCOS
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    &RISCOS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_OS2FS
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    &OS2FSLib_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_NDS
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    &NDS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_UIKIT
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    &UIKIT_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DUMMY
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    &DUMMY_bootstrap,
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#endif
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    NULL
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};
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static SDL_VideoDevice *_this = NULL;
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/* Various local functions */
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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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            return SDL_FALSE;
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   385
        }
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    }
slouken@1895
   387
slouken@2753
   388
    /* Go ahead and add the new mode */
slouken@2753
   389
    if (nmodes == display->max_display_modes) {
slouken@2753
   390
        modes =
slouken@2753
   391
            SDL_realloc(modes,
slouken@2753
   392
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@2753
   393
        if (!modes) {
slouken@2753
   394
            return SDL_FALSE;
slouken@2753
   395
        }
slouken@2753
   396
        display->display_modes = modes;
slouken@2753
   397
        display->max_display_modes += 32;
slouken@2753
   398
    }
slouken@2753
   399
    modes[nmodes] = *mode;
slouken@2753
   400
    display->num_display_modes++;
slouken@1895
   401
slouken@2753
   402
    return SDL_TRUE;
slouken@0
   403
}
slouken@0
   404
slouken@1895
   405
int
slouken@1895
   406
SDL_GetNumDisplayModes()
slouken@0
   407
{
slouken@2753
   408
    if (_this) {
slouken@2753
   409
        SDL_VideoDisplay *display = &SDL_CurrentDisplay;
slouken@2753
   410
        if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@2753
   411
            _this->GetDisplayModes(_this);
slouken@2753
   412
            SDL_qsort(display->display_modes, display->num_display_modes,
slouken@2753
   413
                      sizeof(SDL_DisplayMode), cmpmodes);
slouken@2753
   414
        }
slouken@2753
   415
        return display->num_display_modes;
slouken@2753
   416
    }
slouken@2753
   417
    return 0;
slouken@0
   418
}
slouken@0
   419
slouken@1967
   420
int
slouken@1967
   421
SDL_GetDisplayMode(int index, SDL_DisplayMode * mode)
slouken@0
   422
{
slouken@2753
   423
    if (index < 0 || index >= SDL_GetNumDisplayModes()) {
slouken@2753
   424
        SDL_SetError("index must be in the range of 0 - %d",
slouken@2753
   425
                     SDL_GetNumDisplayModes() - 1);
slouken@2753
   426
        return -1;
slouken@2753
   427
    }
slouken@2753
   428
    if (mode) {
slouken@2753
   429
        *mode = SDL_CurrentDisplay.display_modes[index];
slouken@2753
   430
    }
slouken@2753
   431
    return 0;
slouken@0
   432
}
slouken@0
   433
slouken@1967
   434
int
slouken@1967
   435
SDL_GetDesktopDisplayMode(SDL_DisplayMode * mode)
slouken@0
   436
{
slouken@2753
   437
    if (!_this) {
slouken@2753
   438
        SDL_UninitializedVideo();
slouken@2753
   439
        return -1;
slouken@2753
   440
    }
slouken@2753
   441
    if (mode) {
slouken@2753
   442
        *mode = SDL_CurrentDisplay.desktop_mode;
slouken@2753
   443
    }
slouken@2753
   444
    return 0;
slouken@0
   445
}
slouken@0
   446
slouken@1967
   447
int
slouken@1967
   448
SDL_GetCurrentDisplayMode(SDL_DisplayMode * mode)
slouken@0
   449
{
slouken@2753
   450
    if (!_this) {
slouken@2753
   451
        SDL_UninitializedVideo();
slouken@2753
   452
        return -1;
slouken@2753
   453
    }
slouken@2753
   454
    if (mode) {
slouken@2753
   455
        *mode = SDL_CurrentDisplay.current_mode;
slouken@2753
   456
    }
slouken@2753
   457
    return 0;
slouken@0
   458
}
slouken@0
   459
slouken@1895
   460
SDL_DisplayMode *
slouken@1895
   461
SDL_GetClosestDisplayMode(const SDL_DisplayMode * mode,
slouken@2753
   462
                          SDL_DisplayMode * closest)
slouken@0
   463
{
slouken@2753
   464
    Uint32 target_format;
slouken@2753
   465
    int target_refresh_rate;
slouken@2753
   466
    int i;
slouken@2753
   467
    SDL_DisplayMode *current, *match;
slouken@0
   468
slouken@2753
   469
    if (!_this || !mode || !closest) {
slouken@2753
   470
        return NULL;
slouken@2753
   471
    }
slouken@2753
   472
    /* Default to the desktop format */
slouken@2753
   473
    if (mode->format) {
slouken@2753
   474
        target_format = mode->format;
slouken@2753
   475
    } else {
slouken@2753
   476
        target_format = SDL_CurrentDisplay.desktop_mode.format;
slouken@2753
   477
    }
slouken@0
   478
slouken@2753
   479
    /* Default to the desktop refresh rate */
slouken@2753
   480
    if (mode->refresh_rate) {
slouken@2753
   481
        target_refresh_rate = mode->refresh_rate;
slouken@2753
   482
    } else {
slouken@2753
   483
        target_refresh_rate = SDL_CurrentDisplay.desktop_mode.refresh_rate;
slouken@2753
   484
    }
slouken@0
   485
slouken@2753
   486
    match = NULL;
slouken@2753
   487
    for (i = 0; i < SDL_GetNumDisplayModes(); ++i) {
slouken@2753
   488
        current = &SDL_CurrentDisplay.display_modes[i];
slouken@0
   489
slouken@2789
   490
        if (current->w && (current->w < mode->w)) {
slouken@2753
   491
            /* Out of sorted modes large enough here */
slouken@2753
   492
            break;
slouken@2753
   493
        }
slouken@2789
   494
        if (current->h && (current->h < mode->h)) {
slouken@2789
   495
            if (current->w && (current->w == mode->w)) {
slouken@2789
   496
                /* Out of sorted modes large enough here */
slouken@2789
   497
                break;
slouken@2789
   498
            }
slouken@2789
   499
            /* Wider, but not tall enough, due to a different
slouken@2789
   500
               aspect ratio. This mode must be skipped, but closer
slouken@2789
   501
               modes may still follow. */
slouken@2789
   502
            continue;
slouken@2789
   503
        }
slouken@2753
   504
        if (!match || current->w < match->w || current->h < match->h) {
slouken@2753
   505
            match = current;
slouken@2753
   506
            continue;
slouken@2753
   507
        }
slouken@2753
   508
        if (current->format != match->format) {
slouken@2753
   509
            /* Sorted highest depth to lowest */
slouken@2753
   510
            if (current->format == target_format ||
slouken@2753
   511
                (SDL_BITSPERPIXEL(current->format) >=
slouken@2753
   512
                 SDL_BITSPERPIXEL(target_format)
slouken@2753
   513
                 && SDL_PIXELTYPE(current->format) ==
slouken@2753
   514
                 SDL_PIXELTYPE(target_format))) {
slouken@2753
   515
                match = current;
slouken@2753
   516
            }
slouken@2753
   517
            continue;
slouken@2753
   518
        }
slouken@2753
   519
        if (current->refresh_rate != match->refresh_rate) {
slouken@2753
   520
            /* Sorted highest refresh to lowest */
slouken@2753
   521
            if (current->refresh_rate >= target_refresh_rate) {
slouken@2753
   522
                match = current;
slouken@2753
   523
            }
slouken@2753
   524
        }
slouken@2753
   525
    }
slouken@2753
   526
    if (match) {
slouken@2753
   527
        if (match->format) {
slouken@2753
   528
            closest->format = match->format;
slouken@2753
   529
        } else {
slouken@2753
   530
            closest->format = mode->format;
slouken@2753
   531
        }
slouken@2753
   532
        if (match->w && match->h) {
slouken@2753
   533
            closest->w = match->w;
slouken@2753
   534
            closest->h = match->h;
slouken@2753
   535
        } else {
slouken@2753
   536
            closest->w = mode->w;
slouken@2753
   537
            closest->h = mode->h;
slouken@2753
   538
        }
slouken@2753
   539
        if (match->refresh_rate) {
slouken@2753
   540
            closest->refresh_rate = match->refresh_rate;
slouken@2753
   541
        } else {
slouken@2753
   542
            closest->refresh_rate = mode->refresh_rate;
slouken@2753
   543
        }
slouken@2753
   544
        closest->driverdata = match->driverdata;
slouken@1895
   545
slouken@2753
   546
        /*
slouken@2753
   547
         * Pick some reasonable defaults if the app and driver don't
slouken@2753
   548
         * care
slouken@2753
   549
         */
slouken@2753
   550
        if (!closest->format) {
slouken@2753
   551
            closest->format = SDL_PIXELFORMAT_RGB888;
slouken@2753
   552
        }
slouken@2753
   553
        if (!closest->w) {
slouken@2753
   554
            closest->w = 640;
slouken@2753
   555
        }
slouken@2753
   556
        if (!closest->h) {
slouken@2753
   557
            closest->h = 480;
slouken@2753
   558
        }
slouken@2753
   559
        return closest;
slouken@2753
   560
    }
slouken@2753
   561
    return NULL;
slouken@0
   562
}
slouken@0
   563
slouken@1895
   564
int
slouken@1895
   565
SDL_SetDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   566
{
slouken@2753
   567
    SDL_VideoDisplay *display;
slouken@2753
   568
    SDL_DisplayMode display_mode;
slouken@2753
   569
    SDL_DisplayMode current_mode;
slouken@2753
   570
    int i, ncolors;
slouken@0
   571
slouken@2753
   572
    if (!_this) {
slouken@2753
   573
        SDL_UninitializedVideo();
slouken@2753
   574
        return -1;
slouken@2753
   575
    }
slouken@2753
   576
    display = &SDL_CurrentDisplay;
slouken@2753
   577
    if (!mode) {
slouken@2753
   578
        mode = &display->desktop_mode;
slouken@2753
   579
    }
slouken@2753
   580
    display_mode = *mode;
slouken@0
   581
slouken@2753
   582
    /* Default to the current mode */
slouken@2753
   583
    if (!display_mode.format) {
slouken@2753
   584
        display_mode.format = display->current_mode.format;
slouken@2753
   585
    }
slouken@2753
   586
    if (!display_mode.w) {
slouken@2753
   587
        display_mode.w = display->current_mode.w;
slouken@2753
   588
    }
slouken@2753
   589
    if (!display_mode.h) {
slouken@2753
   590
        display_mode.h = display->current_mode.h;
slouken@2753
   591
    }
slouken@2753
   592
    if (!display_mode.refresh_rate) {
slouken@2753
   593
        display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@2753
   594
    }
slouken@2753
   595
    /* Get a good video mode, the closest one possible */
slouken@2753
   596
    if (!SDL_GetClosestDisplayMode(&display_mode, &display_mode)) {
slouken@2753
   597
        SDL_SetError("No video mode large enough for %dx%d",
slouken@2753
   598
                     display_mode.w, display_mode.h);
slouken@2753
   599
        return -1;
slouken@2753
   600
    }
slouken@2753
   601
    /* See if there's anything left to do */
slouken@2753
   602
    SDL_GetCurrentDisplayMode(&current_mode);
slouken@2753
   603
    if (SDL_memcmp(&display_mode, &current_mode, sizeof(display_mode)) == 0) {
slouken@2753
   604
        return 0;
slouken@2753
   605
    }
slouken@2753
   606
    /* Actually change the display mode */
slouken@2753
   607
    if (_this->SetDisplayMode(_this, &display_mode) < 0) {
slouken@2753
   608
        return -1;
slouken@2753
   609
    }
slouken@2753
   610
    display->current_mode = display_mode;
slouken@1895
   611
slouken@2753
   612
    /* Set up a palette, if necessary */
slouken@2753
   613
    if (SDL_ISPIXELFORMAT_INDEXED(display_mode.format)) {
slouken@2753
   614
        ncolors = (1 << SDL_BITSPERPIXEL(display_mode.format));
slouken@2753
   615
    } else {
slouken@2753
   616
        ncolors = 0;
slouken@2753
   617
    }
slouken@2753
   618
    if ((!ncolors && display->palette) || (ncolors && !display->palette)
slouken@2753
   619
        || (ncolors && ncolors != display->palette->ncolors)) {
slouken@2753
   620
        if (display->palette) {
slouken@2753
   621
            SDL_FreePalette(display->palette);
slouken@2753
   622
            display->palette = NULL;
slouken@2753
   623
        }
slouken@2753
   624
        if (ncolors) {
slouken@2753
   625
            display->palette = SDL_AllocPalette(ncolors);
slouken@2753
   626
            if (!display->palette) {
slouken@2753
   627
                return -1;
slouken@2753
   628
            }
slouken@2753
   629
            SDL_DitherColors(display->palette->colors,
slouken@2753
   630
                             SDL_BITSPERPIXEL(display_mode.format));
slouken@2753
   631
        }
slouken@2753
   632
    }
slouken@2753
   633
    /* Move any fullscreen windows into position */
slouken@2753
   634
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
   635
        SDL_Window *window = &display->windows[i];
slouken@2753
   636
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2875
   637
            SDL_SetWindowPosition(window->id, window->x, window->y);
slouken@2753
   638
        }
slouken@2753
   639
    }
slouken@1895
   640
slouken@2753
   641
    return 0;
slouken@0
   642
}
slouken@0
   643
slouken@1895
   644
int
slouken@1895
   645
SDL_SetFullscreenDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   646
{
slouken@2753
   647
    SDL_VideoDisplay *display;
slouken@2753
   648
    SDL_DisplayMode fullscreen_mode;
slouken@2753
   649
    int i;
slouken@0
   650
slouken@2753
   651
    if (!_this) {
slouken@2753
   652
        SDL_UninitializedVideo();
slouken@2753
   653
        return -1;
slouken@2753
   654
    }
slouken@2753
   655
    display = &SDL_CurrentDisplay;
slouken@2753
   656
    if (!mode) {
slouken@2753
   657
        mode = &display->desktop_mode;
slouken@2753
   658
    }
slouken@2869
   659
    if (!SDL_GetClosestDisplayMode(mode, &fullscreen_mode)) {
slouken@2869
   660
        SDL_SetError("Couldn't find display mode match");
slouken@2869
   661
        return -1;
slouken@2869
   662
    }
slouken@2753
   663
    if (SDL_memcmp
slouken@2753
   664
        (&fullscreen_mode, &display->fullscreen_mode,
slouken@2753
   665
         sizeof(fullscreen_mode)) == 0) {
slouken@2753
   666
        /* Nothing to do... */
slouken@2753
   667
        return 0;
slouken@2753
   668
    }
slouken@2753
   669
    display->fullscreen_mode = fullscreen_mode;
slouken@0
   670
slouken@2753
   671
    /* Actually set the mode if we have a fullscreen window visible */
slouken@2753
   672
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
   673
        SDL_Window *window = &display->windows[i];
slouken@2753
   674
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
   675
            if (SDL_SetDisplayMode(&display->fullscreen_mode) < 0) {
slouken@2753
   676
                return -1;
slouken@2753
   677
            }
slouken@2753
   678
        }
slouken@2753
   679
        if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
   680
            SDL_OnWindowResized(window);
slouken@2753
   681
        }
slouken@2753
   682
    }
slouken@2753
   683
    return 0;
slouken@0
   684
}
slouken@0
   685
slouken@1967
   686
int
slouken@1967
   687
SDL_GetFullscreenDisplayMode(SDL_DisplayMode * mode)
slouken@0
   688
{
slouken@2753
   689
    if (!_this) {
slouken@2753
   690
        SDL_UninitializedVideo();
slouken@2753
   691
        return -1;
slouken@2753
   692
    }
slouken@2753
   693
    if (mode) {
slouken@2753
   694
        *mode = SDL_CurrentDisplay.fullscreen_mode;
slouken@2753
   695
    }
slouken@2753
   696
    return 0;
slouken@0
   697
}
slouken@0
   698
slouken@1895
   699
int
slouken@1895
   700
SDL_SetDisplayPalette(const SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   701
{
slouken@2753
   702
    SDL_Palette *palette;
slouken@2753
   703
    int status = 0;
slouken@0
   704
slouken@2753
   705
    if (!_this) {
slouken@2753
   706
        SDL_UninitializedVideo();
slouken@2753
   707
        return -1;
slouken@2753
   708
    }
slouken@2753
   709
    palette = SDL_CurrentDisplay.palette;
slouken@2753
   710
    if (!palette) {
slouken@2753
   711
        SDL_SetError("Display mode does not have a palette");
slouken@2753
   712
        return -1;
slouken@2753
   713
    }
slouken@2753
   714
    status = SDL_SetPaletteColors(palette, colors, firstcolor, ncolors);
slouken@0
   715
slouken@2753
   716
    if (_this->SetDisplayPalette) {
slouken@2753
   717
        if (_this->SetDisplayPalette(_this, palette) < 0) {
slouken@2753
   718
            status = -1;
slouken@2753
   719
        }
slouken@2753
   720
    }
slouken@2753
   721
    return status;
slouken@0
   722
}
slouken@0
   723
slouken@1895
   724
int
slouken@1895
   725
SDL_GetDisplayPalette(SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   726
{
slouken@2753
   727
    SDL_Palette *palette;
slouken@1895
   728
slouken@2753
   729
    if (!_this) {
slouken@2753
   730
        SDL_UninitializedVideo();
slouken@2753
   731
        return -1;
slouken@2753
   732
    }
slouken@2753
   733
    palette = SDL_CurrentDisplay.palette;
slouken@2753
   734
    if (!palette->ncolors) {
slouken@2753
   735
        SDL_SetError("Display mode does not have a palette");
slouken@2753
   736
        return -1;
slouken@2753
   737
    }
slouken@2753
   738
    if (firstcolor < 0 || (firstcolor + ncolors) > palette->ncolors) {
slouken@2753
   739
        SDL_SetError("Palette indices are out of range");
slouken@2753
   740
        return -1;
slouken@2753
   741
    }
slouken@2753
   742
    SDL_memcpy(colors, &palette->colors[firstcolor],
slouken@2753
   743
               ncolors * sizeof(*colors));
slouken@2753
   744
    return 0;
slouken@0
   745
}
slouken@0
   746
slouken@1895
   747
SDL_WindowID
slouken@1895
   748
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
   749
{
slouken@2753
   750
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@2753
   751
                                  SDL_WINDOW_OPENGL |
slouken@2753
   752
                                  SDL_WINDOW_BORDERLESS |
slouken@2875
   753
                                  SDL_WINDOW_RESIZABLE |
slouken@2875
   754
                                  SDL_WINDOW_INPUT_GRABBED);
slouken@2753
   755
    SDL_VideoDisplay *display;
slouken@2753
   756
    SDL_Window window;
slouken@2753
   757
    int num_windows;
slouken@2753
   758
    SDL_Window *windows;
slouken@0
   759
slouken@2753
   760
    if (!_this) {
slouken@2753
   761
        SDL_UninitializedVideo();
slouken@2753
   762
        return 0;
slouken@2753
   763
    }
slouken@2753
   764
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@2753
   765
        SDL_SetError("No OpenGL support in video driver");
slouken@2753
   766
        return 0;
slouken@2753
   767
    }
slouken@2753
   768
    SDL_zero(window);
slouken@2753
   769
    window.id = _this->next_object_id++;
slouken@2753
   770
    window.x = x;
slouken@2753
   771
    window.y = y;
slouken@2753
   772
    window.w = w;
slouken@2753
   773
    window.h = h;
slouken@2753
   774
    window.flags = (flags & allowed_flags);
slouken@2753
   775
    window.display = _this->current_display;
slouken@1912
   776
slouken@2753
   777
    if (_this->CreateWindow && _this->CreateWindow(_this, &window) < 0) {
slouken@2753
   778
        return 0;
slouken@2753
   779
    }
slouken@2753
   780
    display = &SDL_CurrentDisplay;
slouken@2753
   781
    num_windows = display->num_windows;
slouken@2753
   782
    windows =
slouken@2753
   783
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@2753
   784
    if (!windows) {
slouken@2753
   785
        if (_this->DestroyWindow) {
slouken@2753
   786
            _this->DestroyWindow(_this, &window);
slouken@2753
   787
        }
slouken@2753
   788
        return 0;
slouken@2753
   789
    }
slouken@2753
   790
    windows[num_windows] = window;
slouken@2753
   791
    display->windows = windows;
slouken@2753
   792
    display->num_windows++;
slouken@0
   793
slouken@2753
   794
    if (title) {
slouken@2753
   795
        SDL_SetWindowTitle(window.id, title);
slouken@2753
   796
    }
slouken@2753
   797
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
   798
        SDL_MaximizeWindow(window.id);
slouken@2753
   799
    }
slouken@2753
   800
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
   801
        SDL_MinimizeWindow(window.id);
slouken@2753
   802
    }
slouken@2753
   803
    if (flags & SDL_WINDOW_SHOWN) {
slouken@2753
   804
        SDL_ShowWindow(window.id);
slouken@2753
   805
    }
slouken@2875
   806
    SDL_UpdateWindowGrab(&window);
slouken@2875
   807
slouken@2753
   808
    return window.id;
slouken@1895
   809
}
slouken@0
   810
slouken@1895
   811
SDL_WindowID
slouken@1895
   812
SDL_CreateWindowFrom(const void *data)
slouken@1895
   813
{
slouken@2753
   814
    SDL_VideoDisplay *display;
slouken@2753
   815
    SDL_Window window;
slouken@2753
   816
    int num_windows;
slouken@2753
   817
    SDL_Window *windows;
slouken@0
   818
slouken@2753
   819
    if (!_this) {
slouken@2753
   820
        SDL_UninitializedVideo();
slouken@2753
   821
        return (0);
slouken@2753
   822
    }
slouken@2753
   823
    SDL_zero(window);
slouken@2753
   824
    window.id = _this->next_object_id++;
slouken@2753
   825
    window.display = _this->current_display;
slouken@1895
   826
slouken@2753
   827
    if (!_this->CreateWindowFrom ||
slouken@2753
   828
        _this->CreateWindowFrom(_this, &window, data) < 0) {
slouken@2753
   829
        return 0;
slouken@2753
   830
    }
slouken@2753
   831
    display = &SDL_CurrentDisplay;
slouken@2753
   832
    num_windows = display->num_windows;
slouken@2753
   833
    windows =
slouken@2753
   834
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@2753
   835
    if (!windows) {
slouken@2753
   836
        if (_this->DestroyWindow) {
slouken@2753
   837
            _this->DestroyWindow(_this, &window);
slouken@2753
   838
        }
slouken@2753
   839
        if (window.title) {
slouken@2753
   840
            SDL_free(window.title);
slouken@2753
   841
        }
slouken@2753
   842
        return 0;
slouken@2753
   843
    }
slouken@2753
   844
    windows[num_windows] = window;
slouken@2753
   845
    display->windows = windows;
slouken@2753
   846
    display->num_windows++;
slouken@1895
   847
slouken@2753
   848
    return window.id;
slouken@1895
   849
}
slouken@1895
   850
slouken@1924
   851
int
slouken@1928
   852
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
   853
{
slouken@2753
   854
    char *title = window->title;
slouken@1956
   855
slouken@2753
   856
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@2753
   857
        SDL_SetError("No OpenGL support in video driver");
slouken@2753
   858
        return -1;
slouken@2753
   859
    }
slouken@2753
   860
    if (_this->DestroyWindow) {
slouken@2753
   861
        _this->DestroyWindow(_this, window);
slouken@2753
   862
    }
slouken@2753
   863
    window->title = NULL;
slouken@2753
   864
    window->flags =
slouken@2753
   865
        (flags &
slouken@2753
   866
         ~(SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED | SDL_WINDOW_SHOWN |
slouken@2753
   867
           SDL_WINDOW_INPUT_GRABBED));
slouken@1956
   868
slouken@2753
   869
    if (_this->CreateWindow && _this->CreateWindow(_this, window) < 0) {
slouken@2753
   870
        return -1;
slouken@2753
   871
    }
slouken@2753
   872
    if (title) {
slouken@2753
   873
        SDL_SetWindowTitle(window->id, title);
slouken@2753
   874
        SDL_free(title);
slouken@2753
   875
    }
slouken@2753
   876
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
   877
        SDL_MaximizeWindow(window->id);
slouken@2753
   878
    }
slouken@2753
   879
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
   880
        SDL_MinimizeWindow(window->id);
slouken@2753
   881
    }
slouken@2753
   882
    if (flags & SDL_WINDOW_SHOWN) {
slouken@2753
   883
        SDL_ShowWindow(window->id);
slouken@2753
   884
    }
slouken@2875
   885
    SDL_UpdateWindowGrab(window);
slouken@2875
   886
slouken@2753
   887
    return 0;
slouken@1924
   888
}
slouken@1924
   889
slouken@2753
   890
SDL_Window *
slouken@1895
   891
SDL_GetWindowFromID(SDL_WindowID windowID)
slouken@1895
   892
{
slouken@2753
   893
    int i, j;
slouken@1895
   894
slouken@2753
   895
    if (!_this) {
slouken@2753
   896
        SDL_UninitializedVideo();
slouken@2753
   897
        return NULL;
slouken@2753
   898
    }
slouken@2753
   899
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
   900
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
   901
        for (j = 0; j < display->num_windows; ++j) {
slouken@2753
   902
            SDL_Window *window = &display->windows[j];
slouken@2753
   903
            if (window->id == windowID) {
slouken@2753
   904
                return window;
slouken@2753
   905
            }
slouken@2753
   906
        }
slouken@2753
   907
    }
slouken@2753
   908
    return NULL;
slouken@1895
   909
}
slouken@1895
   910
slouken@1895
   911
SDL_VideoDisplay *
slouken@1895
   912
SDL_GetDisplayFromWindow(SDL_Window * window)
slouken@1895
   913
{
slouken@2753
   914
    if (!_this) {
slouken@2753
   915
        SDL_UninitializedVideo();
slouken@2753
   916
        return NULL;
slouken@2753
   917
    }
slouken@2753
   918
    if (!window) {
slouken@2753
   919
        return NULL;
slouken@2753
   920
    }
slouken@2753
   921
    return &_this->displays[window->display];
slouken@1895
   922
}
slouken@1895
   923
slouken@1895
   924
Uint32
slouken@1895
   925
SDL_GetWindowFlags(SDL_WindowID windowID)
slouken@1895
   926
{
slouken@2753
   927
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   928
slouken@2753
   929
    if (!window) {
slouken@2753
   930
        return 0;
slouken@2753
   931
    }
slouken@2753
   932
    return window->flags;
slouken@1895
   933
}
slouken@1895
   934
slouken@1895
   935
void
slouken@1895
   936
SDL_SetWindowTitle(SDL_WindowID windowID, const char *title)
slouken@1895
   937
{
slouken@2753
   938
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   939
slouken@2753
   940
    if (!window || title == window->title) {
slouken@2753
   941
        return;
slouken@2753
   942
    }
slouken@2753
   943
    if (window->title) {
slouken@2753
   944
        SDL_free(window->title);
slouken@2753
   945
    }
slouken@2753
   946
    if (title) {
slouken@2753
   947
        window->title = SDL_strdup(title);
slouken@2753
   948
    } else {
slouken@2753
   949
        window->title = NULL;
slouken@2753
   950
    }
slouken@1956
   951
slouken@2753
   952
    if (_this->SetWindowTitle) {
slouken@2753
   953
        _this->SetWindowTitle(_this, window);
slouken@2753
   954
    }
slouken@1895
   955
}
slouken@1895
   956
slouken@2753
   957
const char *
slouken@1895
   958
SDL_GetWindowTitle(SDL_WindowID windowID)
slouken@1895
   959
{
slouken@2753
   960
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   961
slouken@2753
   962
    if (!window) {
slouken@2753
   963
        return NULL;
slouken@2753
   964
    }
slouken@2753
   965
    return window->title;
slouken@1895
   966
}
slouken@1895
   967
slouken@1895
   968
void
slouken@1895
   969
SDL_SetWindowData(SDL_WindowID windowID, void *userdata)
slouken@1895
   970
{
slouken@2753
   971
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   972
slouken@2753
   973
    if (!window) {
slouken@2753
   974
        return;
slouken@2753
   975
    }
slouken@2753
   976
    window->userdata = userdata;
slouken@1895
   977
}
slouken@1895
   978
slouken@2753
   979
void *
slouken@1895
   980
SDL_GetWindowData(SDL_WindowID windowID)
slouken@1895
   981
{
slouken@2753
   982
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   983
slouken@2753
   984
    if (!window) {
slouken@2753
   985
        return NULL;
slouken@2753
   986
    }
slouken@2753
   987
    return window->userdata;
slouken@1895
   988
}
slouken@1895
   989
slouken@1895
   990
void
slouken@1895
   991
SDL_SetWindowPosition(SDL_WindowID windowID, int x, int y)
slouken@1895
   992
{
slouken@2753
   993
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
   994
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
   995
slouken@2753
   996
    if (!window) {
slouken@2753
   997
        return;
slouken@2753
   998
    }
slouken@2875
   999
    if (x != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1000
        window->x = x;
slouken@2753
  1001
    }
slouken@2875
  1002
    if (y != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1003
        window->y = y;
slouken@2753
  1004
    }
slouken@2753
  1005
    if (_this->SetWindowPosition) {
slouken@2753
  1006
        _this->SetWindowPosition(_this, window);
slouken@2753
  1007
    }
slouken@2875
  1008
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MOVED, x, y);
slouken@1895
  1009
}
slouken@1895
  1010
slouken@1895
  1011
void
slouken@1895
  1012
SDL_GetWindowPosition(SDL_WindowID windowID, int *x, int *y)
slouken@1895
  1013
{
slouken@2753
  1014
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1015
slouken@2753
  1016
    if (!window) {
slouken@2753
  1017
        return;
slouken@2753
  1018
    }
slouken@2753
  1019
    if (x) {
slouken@2753
  1020
        *x = window->x;
slouken@2753
  1021
    }
slouken@2753
  1022
    if (y) {
slouken@2753
  1023
        *y = window->y;
slouken@2753
  1024
    }
slouken@1895
  1025
}
slouken@1895
  1026
slouken@1895
  1027
void
slouken@1895
  1028
SDL_SetWindowSize(SDL_WindowID windowID, int w, int h)
slouken@1895
  1029
{
slouken@2753
  1030
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1031
slouken@2753
  1032
    if (!window) {
slouken@2753
  1033
        return;
slouken@2753
  1034
    }
slouken@2753
  1035
    window->w = w;
slouken@2753
  1036
    window->h = h;
slouken@1895
  1037
slouken@2753
  1038
    if (_this->SetWindowSize) {
slouken@2753
  1039
        _this->SetWindowSize(_this, window);
slouken@2753
  1040
    }
slouken@2849
  1041
    SDL_OnWindowResized(window);
slouken@1895
  1042
}
slouken@1895
  1043
slouken@1895
  1044
void
slouken@1895
  1045
SDL_GetWindowSize(SDL_WindowID windowID, int *w, int *h)
slouken@1895
  1046
{
slouken@2753
  1047
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1048
slouken@2860
  1049
    if (window) {
slouken@2849
  1050
        if (w) {
slouken@2849
  1051
            *w = window->w;
slouken@2849
  1052
        }
slouken@2849
  1053
        if (h) {
slouken@2849
  1054
            *h = window->h;
slouken@2849
  1055
        }
slouken@2849
  1056
    } else {
slouken@2849
  1057
        if (w) {
slouken@2849
  1058
            *w = 0;
slouken@2849
  1059
        }
slouken@2849
  1060
        if (h) {
slouken@2849
  1061
            *h = 0;
slouken@2849
  1062
        }
slouken@2753
  1063
    }
slouken@1895
  1064
}
slouken@1895
  1065
slouken@1895
  1066
void
slouken@1895
  1067
SDL_ShowWindow(SDL_WindowID windowID)
slouken@1895
  1068
{
slouken@2753
  1069
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1070
slouken@2753
  1071
    if (!window || (window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1072
        return;
slouken@2753
  1073
    }
slouken@1895
  1074
slouken@2753
  1075
    if (_this->ShowWindow) {
slouken@2753
  1076
        _this->ShowWindow(_this, window);
slouken@2753
  1077
    }
slouken@2875
  1078
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1079
}
slouken@1895
  1080
slouken@1895
  1081
void
slouken@1895
  1082
SDL_HideWindow(SDL_WindowID windowID)
slouken@1895
  1083
{
slouken@2753
  1084
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1085
slouken@2753
  1086
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1087
        return;
slouken@2753
  1088
    }
slouken@1895
  1089
slouken@2753
  1090
    if (_this->HideWindow) {
slouken@2753
  1091
        _this->HideWindow(_this, window);
slouken@2753
  1092
    }
slouken@2875
  1093
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1094
}
slouken@1895
  1095
slouken@1895
  1096
void
slouken@1895
  1097
SDL_RaiseWindow(SDL_WindowID windowID)
slouken@1895
  1098
{
slouken@2753
  1099
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1100
slouken@2753
  1101
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1102
        return;
slouken@2753
  1103
    }
slouken@2753
  1104
    if (_this->RaiseWindow) {
slouken@2753
  1105
        _this->RaiseWindow(_this, window);
slouken@2753
  1106
    }
slouken@1895
  1107
}
slouken@1895
  1108
slouken@1895
  1109
void
slouken@1895
  1110
SDL_MaximizeWindow(SDL_WindowID windowID)
slouken@1895
  1111
{
slouken@2753
  1112
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1113
slouken@2753
  1114
    if (!window || (window->flags & SDL_WINDOW_MAXIMIZED)) {
slouken@2753
  1115
        return;
slouken@2753
  1116
    }
slouken@1895
  1117
slouken@2753
  1118
    if (_this->MaximizeWindow) {
slouken@2753
  1119
        _this->MaximizeWindow(_this, window);
slouken@2753
  1120
    }
slouken@2875
  1121
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@1895
  1122
}
slouken@1895
  1123
slouken@1895
  1124
void
slouken@1895
  1125
SDL_MinimizeWindow(SDL_WindowID windowID)
slouken@1895
  1126
{
slouken@2753
  1127
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1128
slouken@2753
  1129
    if (!window || (window->flags & SDL_WINDOW_MINIMIZED)) {
slouken@2753
  1130
        return;
slouken@2753
  1131
    }
slouken@1895
  1132
slouken@2753
  1133
    if (_this->MinimizeWindow) {
slouken@2753
  1134
        _this->MinimizeWindow(_this, window);
slouken@2753
  1135
    }
slouken@2875
  1136
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@1895
  1137
}
slouken@1895
  1138
slouken@1895
  1139
void
slouken@1895
  1140
SDL_RestoreWindow(SDL_WindowID windowID)
slouken@1895
  1141
{
slouken@2753
  1142
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1143
slouken@2753
  1144
    if (!window
slouken@2753
  1145
        || (window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@2753
  1146
        return;
slouken@2753
  1147
    }
slouken@1895
  1148
slouken@2753
  1149
    if (_this->RestoreWindow) {
slouken@2753
  1150
        _this->RestoreWindow(_this, window);
slouken@2753
  1151
    }
slouken@2875
  1152
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@1895
  1153
}
slouken@1895
  1154
slouken@1895
  1155
int
slouken@1895
  1156
SDL_SetWindowFullscreen(SDL_WindowID windowID, int fullscreen)
slouken@1895
  1157
{
slouken@2753
  1158
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1159
slouken@2753
  1160
    if (!window) {
slouken@2753
  1161
        return -1;
slouken@2753
  1162
    }
slouken@2753
  1163
    if (fullscreen) {
slouken@2753
  1164
        fullscreen = SDL_WINDOW_FULLSCREEN;
slouken@2753
  1165
    }
slouken@2753
  1166
    if ((window->flags & SDL_WINDOW_FULLSCREEN) == fullscreen) {
slouken@2753
  1167
        return 0;
slouken@2753
  1168
    }
slouken@2753
  1169
    if (fullscreen) {
slouken@2753
  1170
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
  1171
slouken@2753
  1172
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
  1173
            SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1174
slouken@2753
  1175
            /* Hide any other fullscreen windows */
slouken@2753
  1176
            int i;
slouken@2753
  1177
            for (i = 0; i < display->num_windows; ++i) {
slouken@2753
  1178
                SDL_Window *other = &display->windows[i];
slouken@2753
  1179
                if (other->id != windowID && FULLSCREEN_VISIBLE(other)) {
slouken@2753
  1180
                    SDL_MinimizeWindow(other->id);
slouken@2753
  1181
                }
slouken@2753
  1182
            }
slouken@1895
  1183
slouken@2753
  1184
            SDL_SetDisplayMode(&display->fullscreen_mode);
slouken@2753
  1185
        }
slouken@2753
  1186
    } else {
slouken@2753
  1187
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@1895
  1188
slouken@2753
  1189
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
  1190
            SDL_SetDisplayMode(NULL);
slouken@2753
  1191
        }
slouken@2753
  1192
    }
slouken@2753
  1193
    return 0;
slouken@1895
  1194
}
slouken@1895
  1195
slouken@1895
  1196
void
slouken@1895
  1197
SDL_SetWindowGrab(SDL_WindowID windowID, int mode)
slouken@1895
  1198
{
slouken@2753
  1199
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1200
slouken@2753
  1201
    if (!window || (!!mode == !!(window->flags & SDL_WINDOW_INPUT_GRABBED))) {
slouken@2753
  1202
        return;
slouken@2753
  1203
    }
slouken@2753
  1204
    if (mode) {
slouken@2753
  1205
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1206
    } else {
slouken@2753
  1207
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1208
    }
slouken@2875
  1209
    SDL_UpdateWindowGrab(window);
slouken@2875
  1210
}
slouken@1895
  1211
slouken@2875
  1212
static void
slouken@2876
  1213
SDL_UpdateWindowGrab(SDL_Window * window)
slouken@2875
  1214
{
slouken@2753
  1215
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@2753
  1216
        _this->SetWindowGrab(_this, window);
slouken@2753
  1217
    }
slouken@1895
  1218
}
slouken@1895
  1219
slouken@1895
  1220
int
slouken@1895
  1221
SDL_GetWindowGrab(SDL_WindowID windowID)
slouken@1895
  1222
{
slouken@2753
  1223
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1224
slouken@2753
  1225
    if (!window) {
slouken@2753
  1226
        return 0;
slouken@2753
  1227
    }
slouken@2753
  1228
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1229
}
slouken@1895
  1230
slouken@1895
  1231
void
slouken@1895
  1232
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1233
{
slouken@2875
  1234
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2875
  1235
        SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_FOCUS_GAINED, 0, 0);
slouken@2875
  1236
    }
slouken@1895
  1237
}
slouken@1895
  1238
slouken@1895
  1239
void
slouken@1895
  1240
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1241
{
slouken@2875
  1242
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2875
  1243
        SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@2875
  1244
    }
slouken@1895
  1245
}
slouken@1895
  1246
slouken@1895
  1247
void
slouken@1970
  1248
SDL_OnWindowResized(SDL_Window * window)
slouken@1970
  1249
{
slouken@2753
  1250
    SDL_Renderer *renderer = window->renderer;
slouken@1970
  1251
slouken@2753
  1252
    if (renderer && renderer->DisplayModeChanged) {
slouken@2753
  1253
        renderer->DisplayModeChanged(renderer);
slouken@2753
  1254
    }
slouken@1970
  1255
}
slouken@1970
  1256
slouken@1970
  1257
void
slouken@1895
  1258
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1259
{
slouken@2753
  1260
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1261
slouken@2753
  1262
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
  1263
        SDL_SetDisplayMode(&display->fullscreen_mode);
slouken@2753
  1264
    }
slouken@2753
  1265
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@2753
  1266
        _this->SetDisplayGammaRamp(_this, display->gamma);
slouken@2753
  1267
    }
slouken@2876
  1268
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN))
slouken@2876
  1269
        && _this->SetWindowGrab) {
slouken@2753
  1270
        _this->SetWindowGrab(_this, window);
slouken@2753
  1271
    }
slouken@1895
  1272
}
slouken@1895
  1273
slouken@1895
  1274
void
slouken@1895
  1275
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1276
{
slouken@2753
  1277
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1278
slouken@2753
  1279
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
  1280
        SDL_MinimizeWindow(window->id);
slouken@2753
  1281
        SDL_SetDisplayMode(NULL);
slouken@2753
  1282
    }
slouken@2753
  1283
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@2753
  1284
        _this->SetDisplayGammaRamp(_this, display->saved_gamma);
slouken@2753
  1285
    }
slouken@2876
  1286
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN))
slouken@2876
  1287
        && _this->SetWindowGrab) {
slouken@2753
  1288
        _this->SetWindowGrab(_this, window);
slouken@2753
  1289
    }
slouken@1895
  1290
}
slouken@1895
  1291
slouken@1895
  1292
SDL_WindowID
slouken@1895
  1293
SDL_GetFocusWindow(void)
slouken@1895
  1294
{
slouken@2753
  1295
    SDL_VideoDisplay *display;
slouken@2753
  1296
    int i;
slouken@1895
  1297
slouken@2753
  1298
    if (!_this) {
slouken@2753
  1299
        return 0;
slouken@2753
  1300
    }
slouken@2753
  1301
    display = &SDL_CurrentDisplay;
slouken@2753
  1302
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
  1303
        SDL_Window *window = &display->windows[i];
slouken@1895
  1304
slouken@2753
  1305
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@2753
  1306
            return window->id;
slouken@2753
  1307
        }
slouken@2753
  1308
    }
slouken@2753
  1309
    return 0;
slouken@1895
  1310
}
slouken@1895
  1311
slouken@1895
  1312
void
slouken@1895
  1313
SDL_DestroyWindow(SDL_WindowID windowID)
slouken@1895
  1314
{
slouken@2753
  1315
    int i, j;
slouken@1895
  1316
slouken@2753
  1317
    if (!_this) {
slouken@2753
  1318
        return;
slouken@2753
  1319
    }
slouken@2753
  1320
    /* Restore video mode, etc. */
slouken@2753
  1321
    SDL_SendWindowEvent(windowID, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@1895
  1322
slouken@2753
  1323
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
  1324
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  1325
        for (j = 0; j < display->num_windows; ++j) {
slouken@2753
  1326
            SDL_Window *window = &display->windows[j];
slouken@2753
  1327
            if (window->id != windowID) {
slouken@2753
  1328
                continue;
slouken@2753
  1329
            }
slouken@2753
  1330
            if (window->title) {
slouken@2753
  1331
                SDL_free(window->title);
slouken@2753
  1332
                window->title = NULL;
slouken@2753
  1333
            }
slouken@2753
  1334
            if (window->renderer) {
slouken@2753
  1335
                SDL_DestroyRenderer(window->id);
slouken@2753
  1336
                window->renderer = NULL;
slouken@2753
  1337
            }
slouken@2753
  1338
            if (_this->DestroyWindow) {
slouken@2753
  1339
                _this->DestroyWindow(_this, window);
slouken@2753
  1340
            }
slouken@2753
  1341
            if (j != display->num_windows - 1) {
slouken@2753
  1342
                SDL_memcpy(&display->windows[i],
slouken@2753
  1343
                           &display->windows[i + 1],
slouken@2753
  1344
                           (display->num_windows - i - 1) * sizeof(*window));
slouken@2753
  1345
            }
slouken@2753
  1346
            --display->num_windows;
slouken@2753
  1347
            return;
slouken@2753
  1348
        }
slouken@2753
  1349
    }
slouken@1895
  1350
}
slouken@1895
  1351
slouken@1895
  1352
void
slouken@1895
  1353
SDL_AddRenderDriver(int displayIndex, const SDL_RenderDriver * driver)
slouken@1895
  1354
{
slouken@2753
  1355
    SDL_VideoDisplay *display;
slouken@2753
  1356
    SDL_RenderDriver *render_drivers;
slouken@1895
  1357
slouken@2753
  1358
    if (displayIndex >= _this->num_displays) {
slouken@2753
  1359
        return;
slouken@2753
  1360
    }
slouken@2753
  1361
    display = &_this->displays[displayIndex];
slouken@2119
  1362
slouken@2753
  1363
    render_drivers =
slouken@2753
  1364
        SDL_realloc(display->render_drivers,
slouken@2753
  1365
                    (display->num_render_drivers +
slouken@2753
  1366
                     1) * sizeof(*render_drivers));
slouken@2753
  1367
    if (render_drivers) {
slouken@2753
  1368
        render_drivers[display->num_render_drivers] = *driver;
slouken@2753
  1369
        display->render_drivers = render_drivers;
slouken@2753
  1370
        display->num_render_drivers++;
slouken@2753
  1371
    }
slouken@1895
  1372
}
slouken@1895
  1373
slouken@1895
  1374
int
slouken@1969
  1375
SDL_GetNumRenderDrivers(void)
slouken@1895
  1376
{
slouken@2753
  1377
    if (_this) {
slouken@2753
  1378
        return SDL_CurrentDisplay.num_render_drivers;
slouken@2753
  1379
    }
slouken@2753
  1380
    return 0;
slouken@1895
  1381
}
slouken@1895
  1382
slouken@1895
  1383
int
slouken@1969
  1384
SDL_GetRenderDriverInfo(int index, SDL_RendererInfo * info)
slouken@1895
  1385
{
slouken@2753
  1386
    if (!_this) {
slouken@2753
  1387
        SDL_UninitializedVideo();
slouken@2753
  1388
        return -1;
slouken@2753
  1389
    }
slouken@2753
  1390
    if (index < 0 || index >= SDL_GetNumRenderDrivers()) {
slouken@2753
  1391
        SDL_SetError("index must be in the range of 0 - %d",
slouken@2753
  1392
                     SDL_GetNumRenderDrivers() - 1);
slouken@2753
  1393
        return -1;
slouken@2753
  1394
    }
slouken@2753
  1395
    *info = SDL_CurrentDisplay.render_drivers[index].info;
slouken@2753
  1396
    return 0;
slouken@1895
  1397
}
slouken@1895
  1398
slouken@1895
  1399
int
slouken@1895
  1400
SDL_CreateRenderer(SDL_WindowID windowID, int index, Uint32 flags)
slouken@1895
  1401
{
slouken@2753
  1402
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1403
slouken@2753
  1404
    if (!window) {
slouken@2753
  1405
        return 0;
slouken@2753
  1406
    }
slouken@2753
  1407
    if (index < 0) {
slouken@2753
  1408
        const char *override = SDL_getenv("SDL_VIDEO_RENDERER");
slouken@2753
  1409
        int n = SDL_GetNumRenderDrivers();
slouken@2753
  1410
        for (index = 0; index < n; ++index) {
slouken@2753
  1411
            SDL_RenderDriver *driver =
slouken@2753
  1412
                &SDL_CurrentDisplay.render_drivers[index];
slouken@1895
  1413
slouken@2753
  1414
            if (override) {
slouken@2753
  1415
                if (SDL_strcasecmp(override, driver->info.name) == 0) {
slouken@2753
  1416
                    break;
slouken@2753
  1417
                }
slouken@2753
  1418
            } else {
slouken@2753
  1419
                if ((driver->info.flags & flags) == flags) {
slouken@2753
  1420
                    break;
slouken@2753
  1421
                }
slouken@2753
  1422
            }
slouken@2753
  1423
        }
slouken@2753
  1424
        if (index == n) {
slouken@2753
  1425
            SDL_SetError("Couldn't find matching render driver");
slouken@2753
  1426
            return -1;
slouken@2753
  1427
        }
slouken@2753
  1428
    }
slouken@2753
  1429
    if (index >= SDL_GetNumRenderDrivers()) {
slouken@2753
  1430
        SDL_SetError("index must be -1 or in the range of 0 - %d",
slouken@2753
  1431
                     SDL_GetNumRenderDrivers() - 1);
slouken@2753
  1432
        return -1;
slouken@2753
  1433
    }
slouken@2753
  1434
    /* Free any existing renderer */
slouken@2753
  1435
    SDL_DestroyRenderer(windowID);
slouken@1895
  1436
slouken@2753
  1437
    /* Create a new renderer instance */
slouken@2753
  1438
    window->renderer = SDL_CurrentDisplay.render_drivers[index]
slouken@2753
  1439
        .CreateRenderer(window, flags);
slouken@2753
  1440
    SDL_SelectRenderer(window->id);
slouken@1895
  1441
slouken@2753
  1442
    return 0;
slouken@1895
  1443
}
slouken@1895
  1444
slouken@1895
  1445
int
slouken@1895
  1446
SDL_SelectRenderer(SDL_WindowID windowID)
slouken@1895
  1447
{
slouken@2753
  1448
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  1449
    SDL_Renderer *renderer;
slouken@1895
  1450
slouken@2753
  1451
    if (!window || !window->renderer) {
slouken@2753
  1452
        return -1;
slouken@2753
  1453
    }
slouken@2753
  1454
    renderer = window->renderer;
slouken@2753
  1455
    if (renderer && renderer->ActivateRenderer) {
slouken@2753
  1456
        if (renderer->ActivateRenderer(renderer) < 0) {
slouken@2753
  1457
            return -1;
slouken@2753
  1458
        }
slouken@2753
  1459
    }
slouken@2753
  1460
    SDL_CurrentDisplay.current_renderer = renderer;
slouken@2753
  1461
    return 0;
slouken@1895
  1462
}
slouken@1895
  1463
slouken@1969
  1464
int
slouken@1969
  1465
SDL_GetRendererInfo(SDL_RendererInfo * info)
slouken@1969
  1466
{
slouken@2753
  1467
    if (!_this) {
slouken@2753
  1468
        SDL_UninitializedVideo();
slouken@2753
  1469
        return -1;
slouken@2753
  1470
    }
slouken@2753
  1471
    if (!SDL_CurrentDisplay.current_renderer) {
slouken@2753
  1472
        SDL_SetError("There is no current renderer");
slouken@2753
  1473
        return -1;
slouken@2753
  1474
    }
slouken@2753
  1475
    *info = SDL_CurrentDisplay.current_renderer->info;
slouken@2753
  1476
    return 0;
slouken@1969
  1477
}
slouken@1969
  1478
slouken@1895
  1479
SDL_TextureID
slouken@1895
  1480
SDL_CreateTexture(Uint32 format, int access, int w, int h)
slouken@1895
  1481
{
slouken@2753
  1482
    int hash;
slouken@2753
  1483
    SDL_Renderer *renderer;
slouken@2753
  1484
    SDL_Texture *texture;
slouken@1895
  1485
slouken@2753
  1486
    if (!_this) {
slouken@2753
  1487
        SDL_UninitializedVideo();
slouken@2753
  1488
        return 0;
slouken@2753
  1489
    }
slouken@2753
  1490
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  1491
    if (!renderer) {
slouken@2810
  1492
        return 0;
slouken@2810
  1493
    }
slouken@2810
  1494
    if (!renderer->CreateTexture) {
slouken@2810
  1495
        SDL_Unsupported();
slouken@2753
  1496
        return 0;
slouken@2753
  1497
    }
slouken@2753
  1498
    texture = (SDL_Texture *) SDL_calloc(1, sizeof(*texture));
slouken@2753
  1499
    if (!texture) {
slouken@2753
  1500
        SDL_OutOfMemory();
slouken@2753
  1501
        return 0;
slouken@2753
  1502
    }
slouken@2753
  1503
    texture->id = _this->next_object_id++;
slouken@2753
  1504
    texture->format = format;
slouken@2753
  1505
    texture->access = access;
slouken@2753
  1506
    texture->w = w;
slouken@2753
  1507
    texture->h = h;
slouken@2753
  1508
    texture->r = 255;
slouken@2753
  1509
    texture->g = 255;
slouken@2753
  1510
    texture->b = 255;
slouken@2753
  1511
    texture->a = 255;
slouken@2753
  1512
    texture->renderer = renderer;
slouken@1895
  1513
slouken@2753
  1514
    if (renderer->CreateTexture(renderer, texture) < 0) {
slouken@2753
  1515
        if (renderer->DestroyTexture) {
slouken@2753
  1516
            renderer->DestroyTexture(renderer, texture);
slouken@2753
  1517
        }
slouken@2753
  1518
        SDL_free(texture);
slouken@2753
  1519
        return 0;
slouken@2753
  1520
    }
slouken@2753
  1521
    hash = (texture->id % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  1522
    texture->next = SDL_CurrentDisplay.textures[hash];
slouken@2753
  1523
    SDL_CurrentDisplay.textures[hash] = texture;
slouken@1895
  1524
slouken@2753
  1525
    return texture->id;
slouken@1895
  1526
}
slouken@1895
  1527
slouken@1895
  1528
SDL_TextureID
slouken@2222
  1529
SDL_CreateTextureFromSurface(Uint32 format, SDL_Surface * surface)
slouken@1895
  1530
{
slouken@2753
  1531
    SDL_TextureID textureID;
slouken@2753
  1532
    SDL_PixelFormat *fmt;
slouken@2753
  1533
    int bpp;
slouken@2753
  1534
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@1895
  1535
slouken@2753
  1536
    if (!surface) {
slouken@2753
  1537
        SDL_SetError("SDL_CreateTextureFromSurface() passed NULL surface");
slouken@2753
  1538
        return 0;
slouken@2753
  1539
    }
slouken@2753
  1540
    fmt = surface->format;
slouken@1895
  1541
slouken@2753
  1542
    if (format) {
slouken@2753
  1543
        if (!SDL_PixelFormatEnumToMasks
slouken@2753
  1544
            (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@2753
  1545
            SDL_SetError("Unknown pixel format");
slouken@2753
  1546
            return 0;
slouken@2753
  1547
        }
slouken@2753
  1548
    } else {
slouken@2753
  1549
        if (surface->format->Amask
slouken@2753
  1550
            || !(surface->map->info.flags &
slouken@2753
  1551
                 (SDL_COPY_COLORKEY | SDL_COPY_MASK | SDL_COPY_BLEND))) {
slouken@2753
  1552
            bpp = fmt->BitsPerPixel;
slouken@2753
  1553
            Rmask = fmt->Rmask;
slouken@2753
  1554
            Gmask = fmt->Gmask;
slouken@2753
  1555
            Bmask = fmt->Bmask;
slouken@2753
  1556
            Amask = fmt->Amask;
slouken@2753
  1557
        } else {
slouken@2753
  1558
            /* Need a format with alpha */
slouken@2753
  1559
            bpp = 32;
slouken@2753
  1560
            Rmask = 0x00FF0000;
slouken@2753
  1561
            Gmask = 0x0000FF00;
slouken@2753
  1562
            Bmask = 0x000000FF;
slouken@2753
  1563
            Amask = 0xFF000000;
slouken@2753
  1564
        }
slouken@2753
  1565
        format = SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
slouken@2753
  1566
        if (!format) {
slouken@2753
  1567
            SDL_SetError("Unknown pixel format");
slouken@2753
  1568
            return 0;
slouken@2753
  1569
        }
slouken@2753
  1570
    }
slouken@1895
  1571
slouken@2753
  1572
    textureID =
slouken@2753
  1573
        SDL_CreateTexture(format, SDL_TEXTUREACCESS_STATIC, surface->w,
slouken@2753
  1574
                          surface->h);
slouken@2753
  1575
    if (!textureID) {
slouken@2753
  1576
        return 0;
slouken@2753
  1577
    }
slouken@2753
  1578
    if (bpp == fmt->BitsPerPixel && Rmask == fmt->Rmask && Gmask == fmt->Gmask
slouken@2753
  1579
        && Bmask == fmt->Bmask && Amask == fmt->Amask) {
slouken@2753
  1580
        if (SDL_MUSTLOCK(surface)) {
slouken@2753
  1581
            if (SDL_LockSurface(surface) < 0) {
slouken@2753
  1582
                SDL_DestroyTexture(textureID);
slouken@2753
  1583
                return 0;
slouken@2753
  1584
            }
slouken@2753
  1585
            SDL_UpdateTexture(textureID, NULL, surface->pixels,
slouken@2753
  1586
                              surface->pitch);
slouken@2753
  1587
            SDL_UnlockSurface(surface);
slouken@2753
  1588
        } else {
slouken@2753
  1589
            SDL_UpdateTexture(textureID, NULL, surface->pixels,
slouken@2753
  1590
                              surface->pitch);
slouken@2753
  1591
        }
slouken@2753
  1592
    } else {
slouken@2753
  1593
        SDL_PixelFormat *dst_fmt;
slouken@2753
  1594
        SDL_Surface *dst = NULL;
slouken@1895
  1595
slouken@2753
  1596
        /* Set up a destination surface for the texture update */
slouken@2753
  1597
        dst_fmt = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask);
slouken@2753
  1598
        if (dst_fmt) {
slouken@2753
  1599
            if (SDL_ISPIXELFORMAT_INDEXED(format)) {
slouken@2753
  1600
                dst_fmt->palette =
slouken@2753
  1601
                    SDL_AllocPalette((1 << SDL_BITSPERPIXEL(format)));
slouken@2753
  1602
                if (dst_fmt->palette) {
slouken@2753
  1603
                    /*
slouken@2753
  1604
                     * FIXME: Should we try to copy
slouken@2753
  1605
                     * fmt->palette?
slouken@2753
  1606
                     */
slouken@2753
  1607
                    SDL_DitherColors(dst_fmt->palette->colors,
slouken@2753
  1608
                                     SDL_BITSPERPIXEL(format));
slouken@2753
  1609
                }
slouken@2753
  1610
            }
slouken@2753
  1611
            dst = SDL_ConvertSurface(surface, dst_fmt, 0);
slouken@2753
  1612
            if (dst) {
slouken@2753
  1613
                SDL_UpdateTexture(textureID, NULL, dst->pixels, dst->pitch);
slouken@2753
  1614
                SDL_FreeSurface(dst);
slouken@2753
  1615
            }
slouken@2753
  1616
            if (dst_fmt->palette) {
slouken@2753
  1617
                SDL_FreePalette(dst_fmt->palette);
slouken@2753
  1618
            }
slouken@2753
  1619
            SDL_FreeFormat(dst_fmt);
slouken@2753
  1620
        }
slouken@2753
  1621
        if (!dst) {
slouken@2753
  1622
            SDL_DestroyTexture(textureID);
slouken@2753
  1623
            return 0;
slouken@2753
  1624
        }
slouken@2753
  1625
    }
slouken@2222
  1626
slouken@2753
  1627
    if (SDL_ISPIXELFORMAT_INDEXED(format) && fmt->palette) {
slouken@2753
  1628
        SDL_SetTexturePalette(textureID, fmt->palette->colors, 0,
slouken@2753
  1629
                              fmt->palette->ncolors);
slouken@2753
  1630
    }
slouken@2753
  1631
    return textureID;
slouken@1895
  1632
}
slouken@1895
  1633
slouken@1895
  1634
static __inline__ SDL_Texture *
slouken@1895
  1635
SDL_GetTextureFromID(SDL_TextureID textureID)
slouken@1895
  1636
{
slouken@2753
  1637
    int hash;
slouken@2753
  1638
    SDL_Texture *texture;
slouken@1895
  1639
slouken@2753
  1640
    if (!_this) {
slouken@2753
  1641
        return NULL;
slouken@2753
  1642
    }
slouken@2753
  1643
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  1644
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@2753
  1645
         texture = texture->next) {
slouken@2753
  1646
        if (texture->id == textureID) {
slouken@2753
  1647
            return texture;
slouken@2753
  1648
        }
slouken@2753
  1649
    }
slouken@2753
  1650
    return NULL;
slouken@1895
  1651
}
slouken@1895
  1652
slouken@1895
  1653
int
slouken@1895
  1654
SDL_QueryTexture(SDL_TextureID textureID, Uint32 * format, int *access,
slouken@2753
  1655
                 int *w, int *h)
slouken@1895
  1656
{
slouken@2753
  1657
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1658
slouken@2753
  1659
    if (!texture) {
slouken@2753
  1660
        return -1;
slouken@2753
  1661
    }
slouken@2753
  1662
    if (format) {
slouken@2753
  1663
        *format = texture->format;
slouken@2753
  1664
    }
slouken@2753
  1665
    if (access) {
slouken@2753
  1666
        *access = texture->access;
slouken@2753
  1667
    }
slouken@2753
  1668
    if (w) {
slouken@2753
  1669
        *w = texture->w;
slouken@2753
  1670
    }
slouken@2753
  1671
    if (h) {
slouken@2753
  1672
        *h = texture->h;
slouken@2753
  1673
    }
slouken@2753
  1674
    return 0;
slouken@1895
  1675
}
slouken@1895
  1676
slouken@1895
  1677
int
slouken@1895
  1678
SDL_QueryTexturePixels(SDL_TextureID textureID, void **pixels, int *pitch)
slouken@1895
  1679
{
slouken@2753
  1680
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1681
    SDL_Renderer *renderer;
slouken@1895
  1682
slouken@2753
  1683
    if (!texture) {
slouken@2753
  1684
        return -1;
slouken@2753
  1685
    }
slouken@2753
  1686
    renderer = texture->renderer;
slouken@2753
  1687
    if (!renderer->QueryTexturePixels) {
slouken@2810
  1688
        SDL_Unsupported();
slouken@2753
  1689
        return -1;
slouken@2753
  1690
    }
slouken@2753
  1691
    return renderer->QueryTexturePixels(renderer, texture, pixels, pitch);
slouken@1895
  1692
}
slouken@1895
  1693
slouken@1895
  1694
int
slouken@1895
  1695
SDL_SetTexturePalette(SDL_TextureID textureID, const SDL_Color * colors,
slouken@2753
  1696
                      int firstcolor, int ncolors)
slouken@1895
  1697
{
slouken@2753
  1698
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1699
    SDL_Renderer *renderer;
slouken@1895
  1700
slouken@2753
  1701
    if (!texture) {
slouken@2753
  1702
        return -1;
slouken@2753
  1703
    }
slouken@2753
  1704
    renderer = texture->renderer;
slouken@2753
  1705
    if (!renderer->SetTexturePalette) {
slouken@2810
  1706
        SDL_Unsupported();
slouken@2753
  1707
        return -1;
slouken@2753
  1708
    }
slouken@2753
  1709
    return renderer->SetTexturePalette(renderer, texture, colors, firstcolor,
slouken@2753
  1710
                                       ncolors);
slouken@1895
  1711
}
slouken@1895
  1712
slouken@1895
  1713
int
slouken@1895
  1714
SDL_GetTexturePalette(SDL_TextureID textureID, SDL_Color * colors,
slouken@2753
  1715
                      int firstcolor, int ncolors)
slouken@1895
  1716
{
slouken@2753
  1717
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1718
    SDL_Renderer *renderer;
slouken@1895
  1719
slouken@2753
  1720
    if (!texture) {
slouken@2753
  1721
        return -1;
slouken@2753
  1722
    }
slouken@2753
  1723
    renderer = texture->renderer;
slouken@2753
  1724
    if (!renderer->GetTexturePalette) {
slouken@2810
  1725
        SDL_Unsupported();
slouken@2753
  1726
        return -1;
slouken@2753
  1727
    }
slouken@2753
  1728
    return renderer->GetTexturePalette(renderer, texture, colors, firstcolor,
slouken@2753
  1729
                                       ncolors);
slouken@1895
  1730
}
slouken@1895
  1731
slouken@1895
  1732
int
slouken@1985
  1733
SDL_SetTextureColorMod(SDL_TextureID textureID, Uint8 r, Uint8 g, Uint8 b)
slouken@1985
  1734
{
slouken@2753
  1735
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1736
    SDL_Renderer *renderer;
slouken@1985
  1737
slouken@2753
  1738
    if (!texture) {
slouken@2753
  1739
        return -1;
slouken@2753
  1740
    }
slouken@2753
  1741
    renderer = texture->renderer;
slouken@2753
  1742
    if (!renderer->SetTextureColorMod) {
slouken@2810
  1743
        SDL_Unsupported();
slouken@2753
  1744
        return -1;
slouken@2753
  1745
    }
slouken@2753
  1746
    if (r < 255 || g < 255 || b < 255) {
slouken@2753
  1747
        texture->modMode |= SDL_TEXTUREMODULATE_COLOR;
slouken@2753
  1748
    } else {
slouken@2753
  1749
        texture->modMode &= ~SDL_TEXTUREMODULATE_COLOR;
slouken@2753
  1750
    }
slouken@2753
  1751
    texture->r = r;
slouken@2753
  1752
    texture->g = g;
slouken@2753
  1753
    texture->b = b;
slouken@2753
  1754
    return renderer->SetTextureColorMod(renderer, texture);
slouken@1985
  1755
}
slouken@1985
  1756
slouken@1985
  1757
int
slouken@1985
  1758
SDL_GetTextureColorMod(SDL_TextureID textureID, Uint8 * r, Uint8 * g,
slouken@2753
  1759
                       Uint8 * b)
slouken@1985
  1760
{
slouken@2753
  1761
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1762
    SDL_Renderer *renderer;
slouken@1985
  1763
slouken@2753
  1764
    if (!texture) {
slouken@2753
  1765
        return -1;
slouken@2753
  1766
    }
slouken@2753
  1767
    renderer = texture->renderer;
slouken@2753
  1768
    if (r) {
slouken@2753
  1769
        *r = texture->r;
slouken@2753
  1770
    }
slouken@2753
  1771
    if (g) {
slouken@2753
  1772
        *g = texture->g;
slouken@2753
  1773
    }
slouken@2753
  1774
    if (b) {
slouken@2753
  1775
        *b = texture->b;
slouken@2753
  1776
    }
slouken@2753
  1777
    return 0;
slouken@1985
  1778
}
slouken@1985
  1779
slouken@1985
  1780
int
slouken@1985
  1781
SDL_SetTextureAlphaMod(SDL_TextureID textureID, Uint8 alpha)
slouken@1985
  1782
{
slouken@2753
  1783
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1784
    SDL_Renderer *renderer;
slouken@1985
  1785
slouken@2753
  1786
    if (!texture) {
slouken@2753
  1787
        return -1;
slouken@2753
  1788
    }
slouken@2753
  1789
    renderer = texture->renderer;
slouken@2753
  1790
    if (!renderer->SetTextureAlphaMod) {
slouken@2810
  1791
        SDL_Unsupported();
slouken@2753
  1792
        return -1;
slouken@2753
  1793
    }
slouken@2753
  1794
    if (alpha < 255) {
slouken@2753
  1795
        texture->modMode |= SDL_TEXTUREMODULATE_ALPHA;
slouken@2753
  1796
    } else {
slouken@2753
  1797
        texture->modMode &= ~SDL_TEXTUREMODULATE_ALPHA;
slouken@2753
  1798
    }
slouken@2753
  1799
    texture->a = alpha;
slouken@2753
  1800
    return renderer->SetTextureAlphaMod(renderer, texture);
slouken@1985
  1801
}
slouken@1985
  1802
slouken@1985
  1803
int
slouken@1985
  1804
SDL_GetTextureAlphaMod(SDL_TextureID textureID, Uint8 * alpha)
slouken@1985
  1805
{
slouken@2753
  1806
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  1807
slouken@2753
  1808
    if (!texture) {
slouken@2753
  1809
        return -1;
slouken@2753
  1810
    }
slouken@2753
  1811
    if (alpha) {
slouken@2753
  1812
        *alpha = texture->a;
slouken@2753
  1813
    }
slouken@2753
  1814
    return 0;
slouken@1985
  1815
}
slouken@1985
  1816
slouken@1985
  1817
int
slouken@1985
  1818
SDL_SetTextureBlendMode(SDL_TextureID textureID, int blendMode)
slouken@1985
  1819
{
slouken@2753
  1820
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1821
    SDL_Renderer *renderer;
slouken@1985
  1822
slouken@2753
  1823
    if (!texture) {
slouken@2753
  1824
        return -1;
slouken@2753
  1825
    }
slouken@2753
  1826
    renderer = texture->renderer;
slouken@2753
  1827
    if (!renderer->SetTextureBlendMode) {
slouken@2810
  1828
        SDL_Unsupported();
slouken@2753
  1829
        return -1;
slouken@2753
  1830
    }
slouken@2753
  1831
    texture->blendMode = blendMode;
slouken@2753
  1832
    return renderer->SetTextureBlendMode(renderer, texture);
slouken@1985
  1833
}
slouken@1985
  1834
slouken@1985
  1835
int
slouken@1985
  1836
SDL_GetTextureBlendMode(SDL_TextureID textureID, int *blendMode)
slouken@1985
  1837
{
slouken@2753
  1838
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  1839
slouken@2753
  1840
    if (!texture) {
slouken@2753
  1841
        return -1;
slouken@2753
  1842
    }
slouken@2753
  1843
    if (blendMode) {
slouken@2753
  1844
        *blendMode = texture->blendMode;
slouken@2753
  1845
    }
slouken@2753
  1846
    return 0;
slouken@1985
  1847
}
slouken@1985
  1848
slouken@1985
  1849
int
slouken@1985
  1850
SDL_SetTextureScaleMode(SDL_TextureID textureID, int scaleMode)
slouken@1985
  1851
{
slouken@2753
  1852
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1853
    SDL_Renderer *renderer;
slouken@1985
  1854
slouken@2753
  1855
    if (!texture) {
slouken@2753
  1856
        return -1;
slouken@2753
  1857
    }
slouken@2753
  1858
    renderer = texture->renderer;
slouken@2753
  1859
    if (!renderer->SetTextureScaleMode) {
slouken@2810
  1860
        SDL_Unsupported();
slouken@2753
  1861
        return -1;
slouken@2753
  1862
    }
slouken@2753
  1863
    texture->scaleMode = scaleMode;
slouken@2753
  1864
    return renderer->SetTextureScaleMode(renderer, texture);
slouken@1985
  1865
}
slouken@1985
  1866
slouken@1985
  1867
int
slouken@1985
  1868
SDL_GetTextureScaleMode(SDL_TextureID textureID, int *scaleMode)
slouken@1985
  1869
{
slouken@2753
  1870
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  1871
slouken@2753
  1872
    if (!texture) {
slouken@2753
  1873
        return -1;
slouken@2753
  1874
    }
slouken@2753
  1875
    if (scaleMode) {
slouken@2753
  1876
        *scaleMode = texture->scaleMode;
slouken@2753
  1877
    }
slouken@2753
  1878
    return 0;
slouken@1985
  1879
}
slouken@1985
  1880
slouken@1985
  1881
int
slouken@1895
  1882
SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect * rect,
slouken@2753
  1883
                  const void *pixels, int pitch)
slouken@1895
  1884
{
slouken@2753
  1885
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1886
    SDL_Renderer *renderer;
slouken@2753
  1887
    SDL_Rect full_rect;
slouken@1895
  1888
slouken@2753
  1889
    if (!texture) {
slouken@2753
  1890
        return -1;
slouken@2753
  1891
    }
slouken@2753
  1892
    renderer = texture->renderer;
slouken@2753
  1893
    if (!renderer->UpdateTexture) {
slouken@2810
  1894
        SDL_Unsupported();
slouken@2753
  1895
        return -1;
slouken@2753
  1896
    }
slouken@2753
  1897
    if (!rect) {
slouken@2753
  1898
        full_rect.x = 0;
slouken@2753
  1899
        full_rect.y = 0;
slouken@2753
  1900
        full_rect.w = texture->w;
slouken@2753
  1901
        full_rect.h = texture->h;
slouken@2753
  1902
        rect = &full_rect;
slouken@2753
  1903
    }
slouken@2753
  1904
    return renderer->UpdateTexture(renderer, texture, rect, pixels, pitch);
slouken@1895
  1905
}
slouken@1895
  1906
slouken@1895
  1907
int
slouken@1895
  1908
SDL_LockTexture(SDL_TextureID textureID, const SDL_Rect * rect, int markDirty,
slouken@2753
  1909
                void **pixels, int *pitch)
slouken@1895
  1910
{
slouken@2753
  1911
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1912
    SDL_Renderer *renderer;
slouken@2753
  1913
    SDL_Rect full_rect;
slouken@1895
  1914
slouken@2753
  1915
    if (!texture) {
slouken@2753
  1916
        return -1;
slouken@2753
  1917
    }
slouken@2753
  1918
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  1919
        SDL_SetError("SDL_LockTexture(): texture must be streaming");
slouken@2753
  1920
        return -1;
slouken@2753
  1921
    }
slouken@2753
  1922
    renderer = texture->renderer;
slouken@2753
  1923
    if (!renderer->LockTexture) {
slouken@2810
  1924
        SDL_Unsupported();
slouken@2753
  1925
        return -1;
slouken@2753
  1926
    }
slouken@2753
  1927
    if (!rect) {
slouken@2753
  1928
        full_rect.x = 0;
slouken@2753
  1929
        full_rect.y = 0;
slouken@2753
  1930
        full_rect.w = texture->w;
slouken@2753
  1931
        full_rect.h = texture->h;
slouken@2753
  1932
        rect = &full_rect;
slouken@2753
  1933
    }
slouken@2753
  1934
    return renderer->LockTexture(renderer, texture, rect, markDirty, pixels,
slouken@2753
  1935
                                 pitch);
slouken@1895
  1936
}
slouken@1895
  1937
slouken@1895
  1938
void
slouken@1895
  1939
SDL_UnlockTexture(SDL_TextureID textureID)
slouken@1895
  1940
{
slouken@2753
  1941
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1942
    SDL_Renderer *renderer;
slouken@1895
  1943
slouken@2753
  1944
    if (!texture) {
slouken@2753
  1945
        return;
slouken@2753
  1946
    }
slouken@2753
  1947
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  1948
        return;
slouken@2753
  1949
    }
slouken@2753
  1950
    renderer = texture->renderer;
slouken@2753
  1951
    if (!renderer->UnlockTexture) {
slouken@2753
  1952
        return;
slouken@2753
  1953
    }
slouken@2753
  1954
    renderer->UnlockTexture(renderer, texture);
slouken@1895
  1955
}
slouken@1895
  1956
slouken@1895
  1957
void
slouken@1895
  1958
SDL_DirtyTexture(SDL_TextureID textureID, int numrects,
slouken@2753
  1959
                 const SDL_Rect * rects)
slouken@1895
  1960
{
slouken@2753
  1961
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1962
    SDL_Renderer *renderer;
slouken@1895
  1963
slouken@2753
  1964
    if (!texture) {
slouken@2753
  1965
        return;
slouken@2753
  1966
    }
slouken@2753
  1967
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  1968
        return;
slouken@2753
  1969
    }
slouken@2753
  1970
    renderer = texture->renderer;
slouken@2753
  1971
    if (!renderer->DirtyTexture) {
slouken@2753
  1972
        return;
slouken@2753
  1973
    }
slouken@2753
  1974
    renderer->DirtyTexture(renderer, texture, numrects, rects);
slouken@1895
  1975
}
slouken@1895
  1976
slouken@1895
  1977
int
slouken@2884
  1978
SDL_SetRenderDrawColor(Uint8 r, Uint8 g, Uint8 b, Uint8 a)
slouken@2884
  1979
{
slouken@2884
  1980
    SDL_Renderer *renderer;
slouken@2884
  1981
slouken@2884
  1982
    if (!_this) {
slouken@2884
  1983
        SDL_UninitializedVideo();
slouken@2884
  1984
        return -1;
slouken@2884
  1985
    }
slouken@2884
  1986
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  1987
    if (!renderer) {
slouken@2884
  1988
        return -1;
slouken@2884
  1989
    }
slouken@2884
  1990
    if (!renderer->SetDrawColor) {
slouken@2884
  1991
        SDL_Unsupported();
slouken@2884
  1992
        return -1;
slouken@2884
  1993
    }
slouken@2884
  1994
    renderer->r = r;
slouken@2884
  1995
    renderer->g = g;
slouken@2884
  1996
    renderer->b = b;
slouken@2884
  1997
    renderer->a = a;
slouken@2884
  1998
    renderer->SetDrawColor(renderer);
slouken@2884
  1999
    return 0;
slouken@2884
  2000
}
slouken@2884
  2001
slouken@2884
  2002
int
slouken@2885
  2003
SDL_GetRenderDrawColor(Uint8 * r, Uint8 * g, Uint8 * b, Uint8 * a)
slouken@2884
  2004
{
slouken@2884
  2005
    SDL_Renderer *renderer;
slouken@2884
  2006
slouken@2884
  2007
    if (!_this) {
slouken@2884
  2008
        SDL_UninitializedVideo();
slouken@2884
  2009
        return -1;
slouken@2884
  2010
    }
slouken@2884
  2011
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2012
    if (!renderer) {
slouken@2884
  2013
        return -1;
slouken@2884
  2014
    }
slouken@2884
  2015
    if (!renderer->SetDrawColor) {
slouken@2884
  2016
        SDL_Unsupported();
slouken@2884
  2017
        return -1;
slouken@2884
  2018
    }
slouken@2884
  2019
    if (r) {
slouken@2884
  2020
        *r = renderer->r;
slouken@2884
  2021
    }
slouken@2884
  2022
    if (g) {
slouken@2884
  2023
        *g = renderer->g;
slouken@2884
  2024
    }
slouken@2884
  2025
    if (b) {
slouken@2884
  2026
        *b = renderer->b;
slouken@2884
  2027
    }
slouken@2884
  2028
    if (a) {
slouken@2884
  2029
        *a = renderer->a;
slouken@2884
  2030
    }
slouken@2884
  2031
    return 0;
slouken@2884
  2032
}
slouken@2884
  2033
slouken@2884
  2034
int
slouken@2884
  2035
SDL_SetRenderDrawBlendMode(int blendMode)
slouken@2884
  2036
{
slouken@2884
  2037
    SDL_Renderer *renderer;
slouken@2884
  2038
slouken@2884
  2039
    if (!_this) {
slouken@2884
  2040
        SDL_UninitializedVideo();
slouken@2884
  2041
        return -1;
slouken@2884
  2042
    }
slouken@2884
  2043
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2044
    if (!renderer) {
slouken@2884
  2045
        return -1;
slouken@2884
  2046
    }
slouken@2884
  2047
    if (!renderer->SetDrawBlendMode) {
slouken@2884
  2048
        SDL_Unsupported();
slouken@2884
  2049
        return -1;
slouken@2884
  2050
    }
slouken@2884
  2051
    renderer->blendMode = blendMode;
slouken@2884
  2052
    renderer->SetDrawBlendMode(renderer);
slouken@2884
  2053
    return 0;
slouken@2884
  2054
}
slouken@2884
  2055
slouken@2884
  2056
int
slouken@2884
  2057
SDL_GetRenderDrawBlendMode(int *blendMode)
slouken@2884
  2058
{
slouken@2884
  2059
    SDL_Renderer *renderer;
slouken@2884
  2060
slouken@2884
  2061
    if (!_this) {
slouken@2884
  2062
        SDL_UninitializedVideo();
slouken@2884
  2063
        return -1;
slouken@2884
  2064
    }
slouken@2884
  2065
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2066
    if (!renderer) {
slouken@2884
  2067
        return -1;
slouken@2884
  2068
    }
slouken@2884
  2069
    *blendMode = renderer->blendMode;
slouken@2884
  2070
    return 0;
slouken@2884
  2071
}
slouken@2884
  2072
slouken@2901
  2073
int
slouken@2901
  2074
SDL_RenderPoint(int x, int y)
slouken@2901
  2075
{
slouken@2901
  2076
    SDL_Renderer *renderer;
slouken@2901
  2077
    SDL_Window *window;
slouken@2901
  2078
    SDL_Rect real_rect;
slouken@2901
  2079
slouken@2901
  2080
    if (!_this) {
slouken@2901
  2081
        SDL_UninitializedVideo();
slouken@2901
  2082
        return -1;
slouken@2901
  2083
    }
slouken@2901
  2084
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2901
  2085
    if (!renderer) {
slouken@2901
  2086
        return -1;
slouken@2901
  2087
    }
slouken@2901
  2088
    if (!renderer->RenderPoint) {
slouken@2901
  2089
        SDL_Unsupported();
slouken@2901
  2090
        return -1;
slouken@2901
  2091
    }
slouken@2901
  2092
    window = SDL_GetWindowFromID(renderer->window);
slouken@2901
  2093
    if (x < 0 || y < 0 || x >= window->w || y >= window->h) {
slouken@2901
  2094
        return 0;
slouken@2901
  2095
    }
slouken@2901
  2096
    return renderer->RenderPoint(renderer, x, y);
slouken@2901
  2097
}
slouken@2901
  2098
slouken@2901
  2099
int
slouken@2901
  2100
SDL_RenderLine(int x1, int y1, int x2, int y2)
slouken@2901
  2101
{
slouken@2901
  2102
    SDL_Renderer *renderer;
slouken@2901
  2103
    SDL_Window *window;
slouken@2901
  2104
    SDL_Rect real_rect;
slouken@2901
  2105
slouken@2901
  2106
    if (x1 == x2 && y1 == y2) {
slouken@2901
  2107
        return SDL_RenderPoint(x1, y1);
slouken@2901
  2108
    }
slouken@2901
  2109
slouken@2901
  2110
    if (!_this) {
slouken@2901
  2111
        SDL_UninitializedVideo();
slouken@2901
  2112
        return -1;
slouken@2901
  2113
    }
slouken@2901
  2114
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2901
  2115
    if (!renderer) {
slouken@2901
  2116
        return -1;
slouken@2901
  2117
    }
slouken@2901
  2118
    if (!renderer->RenderLine) {
slouken@2901
  2119
        SDL_Unsupported();
slouken@2901
  2120
        return -1;
slouken@2901
  2121
    }
slouken@2901
  2122
    window = SDL_GetWindowFromID(renderer->window);
slouken@2909
  2123
slouken@2901
  2124
    real_rect.x = 0;
slouken@2901
  2125
    real_rect.y = 0;
slouken@2901
  2126
    real_rect.w = window->w;
slouken@2901
  2127
    real_rect.h = window->h;
slouken@2909
  2128
    if (!SDL_IntersectRectAndLine(&real_rect, &x1, &x2, &y1, &y2)) {
slouken@2909
  2129
        return (0);
slouken@2901
  2130
    }
slouken@2901
  2131
    return renderer->RenderLine(renderer, x1, y1, x2, y2);
slouken@2901
  2132
}
slouken@2884
  2133
slouken@2884
  2134
int
slouken@2884
  2135
SDL_RenderFill(const SDL_Rect * rect)
slouken@1895
  2136
{
slouken@2753
  2137
    SDL_Renderer *renderer;
slouken@2753
  2138
    SDL_Window *window;
slouken@2753
  2139
    SDL_Rect real_rect;
slouken@1895
  2140
slouken@2753
  2141
    if (!_this) {
slouken@2753
  2142
        SDL_UninitializedVideo();
slouken@2753
  2143
        return -1;
slouken@2753
  2144
    }
slouken@2753
  2145
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  2146
    if (!renderer) {
slouken@2810
  2147
        return -1;
slouken@2810
  2148
    }
slouken@2814
  2149
    if (!renderer->RenderFill) {
slouken@2810
  2150
        SDL_Unsupported();
slouken@2753
  2151
        return -1;
slouken@2753
  2152
    }
slouken@2753
  2153
    window = SDL_GetWindowFromID(renderer->window);
slouken@2908
  2154
slouken@2753
  2155
    real_rect.x = 0;
slouken@2753
  2156
    real_rect.y = 0;
slouken@2753
  2157
    real_rect.w = window->w;
slouken@2753
  2158
    real_rect.h = window->h;
slouken@2753
  2159
    if (rect) {
slouken@2753
  2160
        if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
slouken@2753
  2161
            return 0;
slouken@2753
  2162
        }
slouken@2753
  2163
    }
slouken@2884
  2164
    return renderer->RenderFill(renderer, &real_rect);
slouken@2884
  2165
}
slouken@2884
  2166
slouken@2884
  2167
int
slouken@1895
  2168
SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect * srcrect,
slouken@2753
  2169
               const SDL_Rect * dstrect)
slouken@1895
  2170
{
slouken@2753
  2171
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2172
    SDL_Renderer *renderer;
slouken@2753
  2173
    SDL_Window *window;
slouken@2753
  2174
    SDL_Rect real_srcrect;
slouken@2753
  2175
    SDL_Rect real_dstrect;
slouken@1895
  2176
slouken@2753
  2177
    if (!texture || texture->renderer != SDL_CurrentDisplay.current_renderer) {
slouken@2753
  2178
        return -1;
slouken@2753
  2179
    }
slouken@2753
  2180
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  2181
    if (!renderer) {
slouken@2810
  2182
        return -1;
slouken@2810
  2183
    }
slouken@2810
  2184
    if (!renderer->RenderCopy) {
slouken@2810
  2185
        SDL_Unsupported();
slouken@2753
  2186
        return -1;
slouken@2753
  2187
    }
slouken@2753
  2188
    window = SDL_GetWindowFromID(renderer->window);
slouken@2908
  2189
slouken@2908
  2190
    real_srcrect.x = 0;
slouken@2908
  2191
    real_srcrect.y = 0;
slouken@2908
  2192
    real_srcrect.w = texture->w;
slouken@2908
  2193
    real_srcrect.h = texture->h;
slouken@2753
  2194
    if (srcrect) {
slouken@2908
  2195
        if (!SDL_IntersectRect(srcrect, &real_srcrect, &real_srcrect)) {
slouken@2908
  2196
            return 0;
slouken@2908
  2197
        }
slouken@2753
  2198
    }
slouken@2908
  2199
slouken@2908
  2200
    real_dstrect.x = 0;
slouken@2908
  2201
    real_dstrect.y = 0;
slouken@2908
  2202
    real_dstrect.w = window->w;
slouken@2908
  2203
    real_dstrect.h = window->h;
slouken@2753
  2204
    if (dstrect) {
slouken@2908
  2205
        if (!SDL_IntersectRect(dstrect, &real_dstrect, &real_dstrect)) {
slouken@2908
  2206
            return 0;
slouken@2908
  2207
        }
slouken@2753
  2208
    }
slouken@1895
  2209
slouken@2753
  2210
    return renderer->RenderCopy(renderer, texture, &real_srcrect,
slouken@2753
  2211
                                &real_dstrect);
slouken@1895
  2212
}
slouken@1895
  2213
slouken@1895
  2214
void
slouken@1895
  2215
SDL_RenderPresent(void)
slouken@1895
  2216
{
slouken@2753
  2217
    SDL_Renderer *renderer;
slouken@1895
  2218
slouken@2753
  2219
    if (!_this) {
slouken@2753
  2220
        SDL_UninitializedVideo();
slouken@2753
  2221
        return;
slouken@2753
  2222
    }
slouken@2753
  2223
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2753
  2224
    if (!renderer || !renderer->RenderPresent) {
slouken@2753
  2225
        return;
slouken@2753
  2226
    }
slouken@2753
  2227
    renderer->RenderPresent(renderer);
slouken@1895
  2228
}
slouken@1895
  2229
slouken@1895
  2230
void
slouken@1895
  2231
SDL_DestroyTexture(SDL_TextureID textureID)
slouken@1895
  2232
{
slouken@2753
  2233
    int hash;
slouken@2753
  2234
    SDL_Texture *prev, *texture;
slouken@2753
  2235
    SDL_Renderer *renderer;
slouken@1895
  2236
slouken@2753
  2237
    if (!_this) {
slouken@2753
  2238
        SDL_UninitializedVideo();
slouken@2753
  2239
        return;
slouken@2753
  2240
    }
slouken@2753
  2241
    /* Look up the texture in the hash table */
slouken@2753
  2242
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  2243
    prev = NULL;
slouken@2753
  2244
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@2753
  2245
         prev = texture, texture = texture->next) {
slouken@2753
  2246
        if (texture->id == textureID) {
slouken@2753
  2247
            break;
slouken@2753
  2248
        }
slouken@2753
  2249
    }
slouken@2753
  2250
    if (!texture) {
slouken@2753
  2251
        return;
slouken@2753
  2252
    }
slouken@2753
  2253
    /* Unlink the texture from the list */
slouken@2753
  2254
    if (prev) {
slouken@2753
  2255
        prev->next = texture->next;
slouken@2753
  2256
    } else {
slouken@2753
  2257
        SDL_CurrentDisplay.textures[hash] = texture->next;
slouken@2753
  2258
    }
slouken@1895
  2259
slouken@2753
  2260
    /* Free the texture */
slouken@2753
  2261
    renderer = texture->renderer;
slouken@2753
  2262
    renderer->DestroyTexture(renderer, texture);
slouken@2753
  2263
    SDL_free(texture);
slouken@1895
  2264
}
slouken@1895
  2265
slouken@1895
  2266
void
slouken@1895
  2267
SDL_DestroyRenderer(SDL_WindowID windowID)
slouken@1895
  2268
{
slouken@2753
  2269
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  2270
    SDL_Renderer *renderer;
slouken@2753
  2271
    int i;
slouken@1895
  2272
slouken@2753
  2273
    if (!window) {
slouken@2753
  2274
        return;
slouken@2753
  2275
    }
slouken@2753
  2276
    renderer = window->renderer;
slouken@2753
  2277
    if (!renderer) {
slouken@2753
  2278
        return;
slouken@2753
  2279
    }
slouken@2753
  2280
    /* Free existing textures for this renderer */
slouken@2753
  2281
    for (i = 0; i < SDL_arraysize(SDL_CurrentDisplay.textures); ++i) {
slouken@2753
  2282
        SDL_Texture *texture;
slouken@2753
  2283
        SDL_Texture *prev = NULL;
slouken@2753
  2284
        SDL_Texture *next;
slouken@2753
  2285
        for (texture = SDL_CurrentDisplay.textures[i]; texture;
slouken@2753
  2286
             texture = next) {
slouken@2753
  2287
            next = texture->next;
slouken@2753
  2288
            if (texture->renderer == renderer) {
slouken@2753
  2289
                if (prev) {
slouken@2753
  2290
                    prev->next = next;
slouken@2753
  2291
                } else {
slouken@2753
  2292
                    SDL_CurrentDisplay.textures[i] = next;
slouken@2753
  2293
                }
slouken@2753
  2294
                renderer->DestroyTexture(renderer, texture);
slouken@2753
  2295
                SDL_free(texture);
slouken@2753
  2296
            } else {
slouken@2753
  2297
                prev = texture;
slouken@2753
  2298
            }
slouken@2753
  2299
        }
slouken@2753
  2300
    }
slouken@1895
  2301
slouken@2753
  2302
    /* Free the renderer instance */
slouken@2753
  2303
    renderer->DestroyRenderer(renderer);
slouken@1895
  2304
slouken@2753
  2305
    /* Clear references */
slouken@2753
  2306
    window->renderer = NULL;
slouken@2753
  2307
    if (SDL_CurrentDisplay.current_renderer == renderer) {
slouken@2753
  2308
        SDL_CurrentDisplay.current_renderer = NULL;
slouken@2753
  2309
    }
slouken@1895
  2310
}
slouken@1895
  2311
slouken@1895
  2312
void
slouken@1895
  2313
SDL_VideoQuit(void)
slouken@1895
  2314
{
slouken@2753
  2315
    int i, j;
slouken@1895
  2316
slouken@2753
  2317
    if (!_this) {
slouken@2753
  2318
        return;
slouken@2753
  2319
    }
slouken@2753
  2320
    /* Halt event processing before doing anything else */
slouken@2753
  2321
    SDL_StopEventLoop();
slouken@1895
  2322
slouken@2753
  2323
    /* Clean up the system video */
slouken@2753
  2324
    for (i = _this->num_displays; i--;) {
slouken@2753
  2325
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2326
        for (j = display->num_windows; j--;) {
slouken@2753
  2327
            SDL_DestroyWindow(display->windows[i].id);
slouken@2753
  2328
        }
slouken@2753
  2329
        if (display->windows) {
slouken@2753
  2330
            SDL_free(display->windows);
slouken@2753
  2331
            display->windows = NULL;
slouken@2753
  2332
        }
slouken@2753
  2333
        display->num_windows = 0;
slouken@2753
  2334
        if (display->render_drivers) {
slouken@2753
  2335
            SDL_free(display->render_drivers);
slouken@2753
  2336
            display->render_drivers = NULL;
slouken@2753
  2337
        }
slouken@2753
  2338
        display->num_render_drivers = 0;
slouken@2753
  2339
    }
slouken@2753
  2340
    _this->VideoQuit(_this);
slouken@1895
  2341
slouken@2753
  2342
    for (i = _this->num_displays; i--;) {
slouken@2753
  2343
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2344
        for (j = display->num_display_modes; j--;) {
slouken@2753
  2345
            if (display->display_modes[j].driverdata) {
slouken@2753
  2346
                SDL_free(display->display_modes[j].driverdata);
slouken@2753
  2347
                display->display_modes[j].driverdata = NULL;
slouken@2753
  2348
            }
slouken@2753
  2349
        }
slouken@2753
  2350
        if (display->display_modes) {
slouken@2753
  2351
            SDL_free(display->display_modes);
slouken@2753
  2352
            display->display_modes = NULL;
slouken@2753
  2353
        }
slouken@2753
  2354
        if (display->desktop_mode.driverdata) {
slouken@2753
  2355
            SDL_free(display->desktop_mode.driverdata);
slouken@2753
  2356
            display->desktop_mode.driverdata = NULL;
slouken@2753
  2357
        }
slouken@2753
  2358
        if (display->palette) {
slouken@2753
  2359
            SDL_FreePalette(display->palette);
slouken@2753
  2360
            display->palette = NULL;
slouken@2753
  2361
        }
slouken@2753
  2362
        if (display->gamma) {
slouken@2753
  2363
            SDL_free(display->gamma);
slouken@2753
  2364
            display->gamma = NULL;
slouken@2753
  2365
        }
slouken@2753
  2366
        if (display->driverdata) {
slouken@2753
  2367
            SDL_free(display->driverdata);
slouken@2753
  2368
            display->driverdata = NULL;
slouken@2753
  2369
        }
slouken@2753
  2370
    }
slouken@2753
  2371
    if (_this->displays) {
slouken@2753
  2372
        SDL_free(_this->displays);
slouken@2753
  2373
        _this->displays = NULL;
slouken@2753
  2374
    }
slouken@2753
  2375
    _this->free(_this);
slouken@2753
  2376
    _this = NULL;
slouken@0
  2377
}
slouken@0
  2378
slouken@1895
  2379
int
slouken@1895
  2380
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2381
{
slouken@2753
  2382
    int retval;
slouken@0
  2383
slouken@2753
  2384
    if (!_this) {
slouken@2753
  2385
        SDL_UninitializedVideo();
slouken@2753
  2386
        return -1;
slouken@2753
  2387
    }
slouken@2753
  2388
    if (_this->GL_LoadLibrary) {
slouken@2753
  2389
        retval = _this->GL_LoadLibrary(_this, path);
slouken@2753
  2390
    } else {
slouken@2753
  2391
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2392
        retval = -1;
slouken@2753
  2393
    }
slouken@2753
  2394
    return (retval);
slouken@0
  2395
}
slouken@0
  2396
slouken@2753
  2397
void *
slouken@1895
  2398
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2399
{
slouken@2753
  2400
    void *func;
slouken@0
  2401
slouken@2753
  2402
    if (!_this) {
slouken@2753
  2403
        SDL_UninitializedVideo();
slouken@2753
  2404
        return NULL;
slouken@2753
  2405
    }
slouken@2753
  2406
    func = NULL;
slouken@2753
  2407
    if (_this->GL_GetProcAddress) {
slouken@2753
  2408
        if (_this->gl_config.driver_loaded) {
slouken@2753
  2409
            func = _this->GL_GetProcAddress(_this, proc);
slouken@2753
  2410
        } else {
slouken@2753
  2411
            SDL_SetError("No GL driver has been loaded");
slouken@2753
  2412
        }
slouken@2753
  2413
    } else {
slouken@2753
  2414
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2415
    }
slouken@2753
  2416
    return func;
slouken@0
  2417
}
slouken@0
  2418
slouken@1926
  2419
SDL_bool
slouken@1926
  2420
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2421
{
hfutrell@2745
  2422
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2423
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@2753
  2424
    const char *extensions;
slouken@2753
  2425
    const char *start;
slouken@2753
  2426
    const char *where, *terminator;
slouken@1926
  2427
slouken@2753
  2428
    /* Extension names should not have spaces. */
slouken@2753
  2429
    where = SDL_strchr(extension, ' ');
slouken@2753
  2430
    if (where || *extension == '\0') {
slouken@2753
  2431
        return SDL_FALSE;
slouken@2753
  2432
    }
slouken@2753
  2433
    /* See if there's an environment variable override */
slouken@2753
  2434
    start = SDL_getenv(extension);
slouken@2753
  2435
    if (start && *start == '0') {
slouken@2753
  2436
        return SDL_FALSE;
slouken@2753
  2437
    }
slouken@2753
  2438
    /* Lookup the available extensions */
slouken@2753
  2439
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@2753
  2440
    if (glGetStringFunc) {
slouken@2753
  2441
        extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@2753
  2442
    } else {
slouken@2753
  2443
        extensions = NULL;
slouken@2753
  2444
    }
slouken@2753
  2445
    if (!extensions) {
slouken@2753
  2446
        return SDL_FALSE;
slouken@2753
  2447
    }
slouken@2753
  2448
    /*
slouken@2753
  2449
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@2753
  2450
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@2753
  2451
     */
slouken@1926
  2452
slouken@2753
  2453
    start = extensions;
slouken@1926
  2454
slouken@2753
  2455
    for (;;) {
slouken@2753
  2456
        where = SDL_strstr(start, extension);
slouken@2753
  2457
        if (!where)
slouken@2753
  2458
            break;
slouken@1926
  2459
slouken@2753
  2460
        terminator = where + SDL_strlen(extension);
slouken@2753
  2461
        if (where == start || *(where - 1) == ' ')
slouken@2753
  2462
            if (*terminator == ' ' || *terminator == '\0')
slouken@2753
  2463
                return SDL_TRUE;
slouken@1926
  2464
slouken@2753
  2465
        start = terminator;
slouken@2753
  2466
    }
slouken@2753
  2467
    return SDL_FALSE;
slouken@1926
  2468
#else
slouken@2753
  2469
    return SDL_FALSE;
slouken@1926
  2470
#endif
slouken@1926
  2471
}
slouken@1926
  2472
slouken@1895
  2473
int
slouken@1895
  2474
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2475
{
hfutrell@2745
  2476
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2477
    int retval;
slouken@0
  2478
slouken@2753
  2479
    if (!_this) {
slouken@2753
  2480
        SDL_UninitializedVideo();
slouken@2753
  2481
        return -1;
slouken@2753
  2482
    }
slouken@2753
  2483
    retval = 0;
slouken@2753
  2484
    switch (attr) {
slouken@2753
  2485
    case SDL_GL_RED_SIZE:
slouken@2753
  2486
        _this->gl_config.red_size = value;
slouken@2753
  2487
        break;
slouken@2753
  2488
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2489
        _this->gl_config.green_size = value;
slouken@2753
  2490
        break;
slouken@2753
  2491
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2492
        _this->gl_config.blue_size = value;
slouken@2753
  2493
        break;
slouken@2753
  2494
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2495
        _this->gl_config.alpha_size = value;
slouken@2753
  2496
        break;
slouken@2753
  2497
    case SDL_GL_DOUBLEBUFFER:
slouken@2753
  2498
        _this->gl_config.double_buffer = value;
slouken@2753
  2499
        break;
slouken@2753
  2500
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2501
        _this->gl_config.buffer_size = value;
slouken@2753
  2502
        break;
slouken@2753
  2503
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2504
        _this->gl_config.depth_size = value;
slouken@2753
  2505
        break;
slouken@2753
  2506
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2507
        _this->gl_config.stencil_size = value;
slouken@2753
  2508
        break;
slouken@2753
  2509
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2510
        _this->gl_config.accum_red_size = value;
slouken@2753
  2511
        break;
slouken@2753
  2512
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2513
        _this->gl_config.accum_green_size = value;
slouken@2753
  2514
        break;
slouken@2753
  2515
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2516
        _this->gl_config.accum_blue_size = value;
slouken@2753
  2517
        break;
slouken@2753
  2518
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2519
        _this->gl_config.accum_alpha_size = value;
slouken@2753
  2520
        break;
slouken@2753
  2521
    case SDL_GL_STEREO:
slouken@2753
  2522
        _this->gl_config.stereo = value;
slouken@2753
  2523
        break;
slouken@2753
  2524
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@2753
  2525
        _this->gl_config.multisamplebuffers = value;
slouken@2753
  2526
        break;
slouken@2753
  2527
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@2753
  2528
        _this->gl_config.multisamplesamples = value;
slouken@2753
  2529
        break;
slouken@2753
  2530
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2531
        _this->gl_config.accelerated = value;
slouken@2753
  2532
        break;
slouken@2753
  2533
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2534
        _this->gl_config.retained_backing = value;
slouken@2753
  2535
        break;
slouken@2753
  2536
    default:
slouken@2753
  2537
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2538
        retval = -1;
slouken@2753
  2539
        break;
slouken@2753
  2540
    }
slouken@2753
  2541
    return retval;
slouken@1936
  2542
#else
slouken@2753
  2543
    SDL_Unsupported();
slouken@2753
  2544
    return -1;
slouken@2753
  2545
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2546
}
slouken@0
  2547
slouken@1895
  2548
int
slouken@1936
  2549
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2550
{
hfutrell@2745
  2551
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2552
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@2753
  2553
    GLenum attrib = 0;
slouken@1912
  2554
slouken@2753
  2555
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@2753
  2556
    if (!glGetIntegervFunc) {
slouken@2753
  2557
        return -1;
slouken@2753
  2558
    }
slouken@2753
  2559
    switch (attr) {
slouken@2753
  2560
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2561
        *value = _this->gl_config.retained_backing;
slouken@2753
  2562
        return 0;
slouken@2753
  2563
    case SDL_GL_RED_SIZE:
slouken@2753
  2564
        attrib = GL_RED_BITS;
slouken@2753
  2565
        break;
slouken@2753
  2566
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2567
        attrib = GL_BLUE_BITS;
slouken@2753
  2568
        break;
slouken@2753
  2569
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2570
        attrib = GL_GREEN_BITS;
slouken@2753
  2571
        break;
slouken@2753
  2572
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2573
        attrib = GL_ALPHA_BITS;
slouken@2753
  2574
        break;
slouken@2753
  2575
    case SDL_GL_DOUBLEBUFFER:
hfutrell@2745
  2576
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2577
        attrib = GL_DOUBLEBUFFER;
slouken@2753
  2578
        break;
hfutrell@2745
  2579
#else
slouken@2753
  2580
        /*
slouken@2753
  2581
         * I believe double buffering is the only option in OpenGL ES
slouken@2753
  2582
         * -- in any case, GL_DOUBLEBUFFER doesn't exist
slouken@2753
  2583
         */
slouken@2753
  2584
        *value = 1;
slouken@2753
  2585
        return 0;
hfutrell@2745
  2586
#endif
slouken@2753
  2587
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2588
        attrib = GL_DEPTH_BITS;
slouken@2753
  2589
        break;
slouken@2753
  2590
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2591
        attrib = GL_STENCIL_BITS;
slouken@2753
  2592
        break;
hfutrell@2745
  2593
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2594
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2595
        attrib = GL_ACCUM_RED_BITS;
slouken@2753
  2596
        break;
slouken@2753
  2597
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2598
        attrib = GL_ACCUM_GREEN_BITS;
slouken@2753
  2599
        break;
slouken@2753
  2600
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2601
        attrib = GL_ACCUM_BLUE_BITS;
slouken@2753
  2602
        break;
slouken@2753
  2603
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2604
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@2753
  2605
        break;
slouken@2753
  2606
    case SDL_GL_STEREO:
slouken@2753
  2607
        attrib = GL_STEREO;
slouken@2753
  2608
        break;
hfutrell@2745
  2609
#else
slouken@2753
  2610
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2611
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2612
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2613
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2614
    case SDL_GL_STEREO:
slouken@2753
  2615
        /* none of these are supported in OpenGL ES */
slouken@2753
  2616
        *value = 0;
slouken@2753
  2617
        return 0;
hfutrell@2745
  2618
#endif
slouken@2753
  2619
    case SDL_GL_MULTISAMPLEBUFFERS:
hfutrell@2745
  2620
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2621
        attrib = GL_SAMPLE_BUFFERS_ARB;
hfutrell@2745
  2622
#else
slouken@2753
  2623
        attrib = GL_SAMPLE_BUFFERS;
hfutrell@2745
  2624
#endif
slouken@2753
  2625
        break;
slouken@2753
  2626
    case SDL_GL_MULTISAMPLESAMPLES:
hfutrell@2745
  2627
#ifndef SDL_VIDEO_OPENGL_ES
slouken@2753
  2628
        attrib = GL_SAMPLES_ARB;
hfutrell@2745
  2629
#else
slouken@2753
  2630
        attrib = GL_SAMPLES;
hfutrell@2745
  2631
#endif
slouken@2753
  2632
        break;
slouken@2753
  2633
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2634
        {
slouken@2753
  2635
            GLint bits = 0;
slouken@2753
  2636
            GLint component;
slouken@1936
  2637
slouken@2753
  2638
            /*
slouken@2753
  2639
             * there doesn't seem to be a single flag in OpenGL
slouken@2753
  2640
             * for this!
slouken@2753
  2641
             */
slouken@2753
  2642
            glGetIntegervFunc(GL_RED_BITS, &component);
slouken@2753
  2643
            bits += component;
slouken@2753
  2644
            glGetIntegervFunc(GL_GREEN_BITS, &component);
slouken@2753
  2645
            bits += component;
slouken@2753
  2646
            glGetIntegervFunc(GL_BLUE_BITS, &component);
slouken@2753
  2647
            bits += component;
slouken@2753
  2648
            glGetIntegervFunc(GL_ALPHA_BITS, &component);
slouken@2753
  2649
            bits += component;
slouken@1936
  2650
slouken@2753
  2651
            *value = bits;
slouken@2753
  2652
            return 0;
slouken@2753
  2653
        }
slouken@2753
  2654
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2655
        {
slouken@2753
  2656
            /* FIXME: How do we get this information? */
slouken@2753
  2657
            *value = (_this->gl_config.accelerated != 0);
slouken@2753
  2658
            return 0;
slouken@2753
  2659
        }
slouken@2753
  2660
    default:
slouken@2753
  2661
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2662
        return -1;
slouken@2753
  2663
    }
slouken@0
  2664
slouken@2753
  2665
    glGetIntegervFunc(attrib, (GLint *) value);
slouken@2753
  2666
    return 0;
slouken@1936
  2667
#else
slouken@2753
  2668
    SDL_Unsupported();
slouken@2753
  2669
    return -1;
slouken@2753
  2670
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2671
}
slouken@0
  2672
slouken@1912
  2673
SDL_GLContext
slouken@1912
  2674
SDL_GL_CreateContext(SDL_WindowID windowID)
slouken@1912
  2675
{
slouken@2753
  2676
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2677
slouken@2753
  2678
    if (!window) {
slouken@2753
  2679
        return NULL;
slouken@2753
  2680
    }
slouken@2753
  2681
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2682
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2683
        return NULL;
slouken@2753
  2684
    }
slouken@2753
  2685
    return _this->GL_CreateContext(_this, window);
slouken@1912
  2686
}
slouken@1912
  2687
slouken@1912
  2688
int
slouken@1912
  2689
SDL_GL_MakeCurrent(SDL_WindowID windowID, SDL_GLContext context)
slouken@1912
  2690
{
slouken@2753
  2691
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2692
slouken@2753
  2693
    if (window && !(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2694
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2695
        return -1;
slouken@2753
  2696
    }
slouken@2753
  2697
    if (!context) {
slouken@2753
  2698
        window = NULL;
slouken@2753
  2699
    }
slouken@2753
  2700
    return _this->GL_MakeCurrent(_this, window, context);
slouken@1912
  2701
}
slouken@1912
  2702
slouken@1912
  2703
int
slouken@1912
  2704
SDL_GL_SetSwapInterval(int interval)
slouken@1912
  2705
{
slouken@2753
  2706
    if (!_this) {
slouken@2753
  2707
        SDL_UninitializedVideo();
slouken@2753
  2708
        return -1;
slouken@2753
  2709
    }
slouken@2753
  2710
    if (_this->GL_SetSwapInterval) {
slouken@2753
  2711
        return _this->GL_SetSwapInterval(_this, interval);
slouken@2753
  2712
    } else {
slouken@2753
  2713
        SDL_SetError("Setting the swap interval is not supported");
slouken@2753
  2714
        return -1;
slouken@2753
  2715
    }
slouken@1912
  2716
}
slouken@1912
  2717
slouken@1912
  2718
int
slouken@1912
  2719
SDL_GL_GetSwapInterval(void)
slouken@1912
  2720
{
slouken@2753
  2721
    if (!_this) {
slouken@2753
  2722
        SDL_UninitializedVideo();
slouken@2753
  2723
        return -1;
slouken@2753
  2724
    }
slouken@2753
  2725
    if (_this->GL_GetSwapInterval) {
slouken@2753
  2726
        return _this->GL_GetSwapInterval(_this);
slouken@2753
  2727
    } else {
slouken@2753
  2728
        SDL_SetError("Getting the swap interval is not supported");
slouken@2753
  2729
        return -1;
slouken@2753
  2730
    }
slouken@1912
  2731
}
slouken@1912
  2732
slouken@1895
  2733
void
slouken@1912
  2734
SDL_GL_SwapWindow(SDL_WindowID windowID)
slouken@0
  2735
{
slouken@2753
  2736
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1912
  2737
slouken@2753
  2738
    if (!window) {
slouken@2753
  2739
        return;
slouken@2753
  2740
    }
slouken@2753
  2741
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2742
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2743
        return;
slouken@2753
  2744
    }
slouken@2753
  2745
    _this->GL_SwapWindow(_this, window);
slouken@1912
  2746
}
slouken@1912
  2747
slouken@1912
  2748
void
slouken@1912
  2749
SDL_GL_DeleteContext(SDL_GLContext context)
slouken@1912
  2750
{
slouken@2753
  2751
    if (!_this || !context) {
slouken@2753
  2752
        return;
slouken@2753
  2753
    }
slouken@2753
  2754
    _this->GL_MakeCurrent(_this, NULL, NULL);
slouken@2753
  2755
    _this->GL_DeleteContext(_this, context);
slouken@0
  2756
}
slouken@0
  2757
slouken@1895
  2758
#if 0                           // FIXME
hfutrell@2744
  2759
/*
hfutrell@2744
  2760
 * Utility function used by SDL_WM_SetIcon(); flags & 1 for color key, flags
hfutrell@2744
  2761
 * & 2 for alpha channel.
hfutrell@2744
  2762
 */
slouken@1895
  2763
static void
slouken@1895
  2764
CreateMaskFromColorKeyOrAlpha(SDL_Surface * icon, Uint8 * mask, int flags)
slouken@0
  2765
{
slouken@2753
  2766
    int x, y;
slouken@2753
  2767
    Uint32 colorkey;
slouken@0
  2768
#define SET_MASKBIT(icon, x, y, mask) \
slouken@0
  2769
	mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8)))
slouken@0
  2770
slouken@2753
  2771
    colorkey = icon->format->colorkey;
slouken@2753
  2772
    switch (icon->format->BytesPerPixel) {
slouken@2753
  2773
    case 1:
slouken@2753
  2774
        {
slouken@2753
  2775
            Uint8 *pixels;
slouken@2753
  2776
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2777
                pixels = (Uint8 *) icon->pixels + y * icon->pitch;
slouken@2753
  2778
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2779
                    if (*pixels++ == colorkey) {
slouken@2753
  2780
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2781
                    }
slouken@2753
  2782
                }
slouken@2753
  2783
            }
slouken@2753
  2784
        }
slouken@2753
  2785
        break;
slouken@0
  2786
slouken@2753
  2787
    case 2:
slouken@2753
  2788
        {
slouken@2753
  2789
            Uint16 *pixels;
slouken@2753
  2790
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2791
                pixels = (Uint16 *) icon->pixels + y * icon->pitch / 2;
slouken@2753
  2792
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2793
                    if ((flags & 1) && *pixels == colorkey) {
slouken@2753
  2794
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2795
                    } else if ((flags & 2)
slouken@2753
  2796
                               && (*pixels & icon->format->Amask) == 0) {
slouken@2753
  2797
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2798
                    }
slouken@2753
  2799
                    pixels++;
slouken@2753
  2800
                }
slouken@2753
  2801
            }
slouken@2753
  2802
        }
slouken@2753
  2803
        break;
slouken@0
  2804
slouken@2753
  2805
    case 4:
slouken@2753
  2806
        {
slouken@2753
  2807
            Uint32 *pixels;
slouken@2753
  2808
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2809
                pixels = (Uint32 *) icon->pixels + y * icon->pitch / 4;
slouken@2753
  2810
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2811
                    if ((flags & 1) && *pixels == colorkey) {
slouken@2753
  2812
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2813
                    } else if ((flags & 2)
slouken@2753
  2814
                               && (*pixels & icon->format->Amask) == 0) {
slouken@2753
  2815
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2816
                    }
slouken@2753
  2817
                    pixels++;
slouken@2753
  2818
                }
slouken@2753
  2819
            }
slouken@2753
  2820
        }
slouken@2753
  2821
        break;
slouken@2753
  2822
    }
slouken@0
  2823
}
slouken@0
  2824
slouken@0
  2825
/*
slouken@0
  2826
 * Sets the window manager icon for the display window.
slouken@0
  2827
 */
slouken@1895
  2828
void
slouken@1895
  2829
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
slouken@0
  2830
{
slouken@2753
  2831
    if (icon && _this->SetIcon) {
slouken@2753
  2832
        /* Generate a mask if necessary, and create the icon! */
slouken@2753
  2833
        if (mask == NULL) {
slouken@2753
  2834
            int mask_len = icon->h * (icon->w + 7) / 8;
slouken@2753
  2835
            int flags = 0;
slouken@2753
  2836
            mask = (Uint8 *) SDL_malloc(mask_len);
slouken@2753
  2837
            if (mask == NULL) {
slouken@2753
  2838
                return;
slouken@2753
  2839
            }
slouken@2753
  2840
            SDL_memset(mask, ~0, mask_len);
slouken@2753
  2841
            if (icon->flags & SDL_SRCCOLORKEY)
slouken@2753
  2842
                flags |= 1;
slouken@2753
  2843
            if (icon->flags & SDL_SRCALPHA)
slouken@2753
  2844
                flags |= 2;
slouken@2753
  2845
            if (flags) {
slouken@2753
  2846
                CreateMaskFromColorKeyOrAlpha(icon, mask, flags);
slouken@2753
  2847
            }
slouken@2753
  2848
            _this->SetIcon(_this, icon, mask);
slouken@2753
  2849
            SDL_free(mask);
slouken@2753
  2850
        } else {
slouken@2753
  2851
            _this->SetIcon(_this, icon, mask);
slouken@2753
  2852
        }
slouken@2753
  2853
    }
slouken@1895
  2854
}
slouken@1895
  2855
#endif
slouken@0
  2856
slouken@1895
  2857
SDL_bool
slouken@2753
  2858
SDL_GetWindowWMInfo(SDL_WindowID windowID, struct SDL_SysWMinfo *info)
slouken@1895
  2859
{
slouken@2753
  2860
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  2861
slouken@2753
  2862
    if (!window || !_this->GetWindowWMInfo) {
slouken@2753
  2863
        return SDL_FALSE;
slouken@2753
  2864
    }
slouken@2753
  2865
    return (_this->GetWindowWMInfo(_this, window, info));
slouken@0
  2866
}
slouken@0
  2867
slouken@1895
  2868
/* vi: set ts=4 sw=4 expandtab: */