src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Mon, 09 Nov 2009 05:20:11 +0000
changeset 3427 36cf454ba065
parent 3425 25ccea045c9f
child 3435 9f62f47d989b
permissions -rw-r--r--
Work in progress on implementation of SDL_RenderReadPixels() and SDL_RenderWritePixels(), code untested.
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2009 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#include "SDL_config.h"
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/* The high-level video driver subsystem */
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#include "SDL.h"
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#include "SDL_video.h"
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#include "SDL_sysvideo.h"
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#include "SDL_blit.h"
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#include "SDL_pixels_c.h"
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#include "SDL_renderer_gl.h"
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#include "SDL_renderer_gles.h"
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#include "SDL_renderer_sw.h"
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#include "../events/SDL_sysevents.h"
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#include "../events/SDL_events_c.h"
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#if SDL_VIDEO_OPENGL_ES
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#include "SDL_opengles.h"
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#endif /* SDL_VIDEO_OPENGL_ES */
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#if SDL_VIDEO_OPENGL
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#include "SDL_opengl.h"
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/* On Windows, windows.h defines CreateWindow */
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#ifdef CreateWindow
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#undef CreateWindow
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#endif
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#endif /* SDL_VIDEO_OPENGL */
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/* Available video drivers */
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static VideoBootStrap *bootstrap[] = {
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#if SDL_VIDEO_DRIVER_COCOA
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    &COCOA_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_X11
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    &X11_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_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_PS3
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    &PS3_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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    &photon_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_QNXGF
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    &qnxgf_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_RISCOS
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    &RISCOS_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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#if SDL_VIDEO_DRIVER_PANDORA
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    &PND_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 (SDL_PIXELLAYOUT(a.format) != SDL_PIXELLAYOUT(b.format)) {
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        return SDL_PIXELLAYOUT(b.format) - SDL_PIXELLAYOUT(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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    _this->gl_config.major_version = 2;
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    _this->gl_config.minor_version = 1;
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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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        }
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    }
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    /* Go ahead and add the new mode */
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    if (nmodes == display->max_display_modes) {
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        modes =
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            SDL_realloc(modes,
slouken@2753
   383
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@2753
   384
        if (!modes) {
slouken@2753
   385
            return SDL_FALSE;
slouken@2753
   386
        }
slouken@2753
   387
        display->display_modes = modes;
slouken@2753
   388
        display->max_display_modes += 32;
slouken@2753
   389
    }
slouken@2753
   390
    modes[nmodes] = *mode;
slouken@2753
   391
    display->num_display_modes++;
slouken@1895
   392
lestat@3178
   393
    /* Re-sort video modes */
lestat@3178
   394
    SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3186
   395
              sizeof(SDL_DisplayMode), cmpmodes);
lestat@3178
   396
slouken@2753
   397
    return SDL_TRUE;
slouken@0
   398
}
slouken@0
   399
slouken@1895
   400
int
slouken@1895
   401
SDL_GetNumDisplayModes()
slouken@0
   402
{
slouken@2753
   403
    if (_this) {
slouken@2753
   404
        SDL_VideoDisplay *display = &SDL_CurrentDisplay;
slouken@2753
   405
        if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@2753
   406
            _this->GetDisplayModes(_this);
slouken@2753
   407
            SDL_qsort(display->display_modes, display->num_display_modes,
slouken@2753
   408
                      sizeof(SDL_DisplayMode), cmpmodes);
slouken@2753
   409
        }
slouken@2753
   410
        return display->num_display_modes;
slouken@2753
   411
    }
slouken@2753
   412
    return 0;
slouken@0
   413
}
slouken@0
   414
slouken@1967
   415
int
slouken@1967
   416
SDL_GetDisplayMode(int index, SDL_DisplayMode * mode)
slouken@0
   417
{
slouken@2753
   418
    if (index < 0 || index >= SDL_GetNumDisplayModes()) {
slouken@2753
   419
        SDL_SetError("index must be in the range of 0 - %d",
slouken@2753
   420
                     SDL_GetNumDisplayModes() - 1);
slouken@2753
   421
        return -1;
slouken@2753
   422
    }
slouken@2753
   423
    if (mode) {
slouken@2753
   424
        *mode = SDL_CurrentDisplay.display_modes[index];
slouken@2753
   425
    }
slouken@2753
   426
    return 0;
slouken@0
   427
}
slouken@0
   428
slouken@1967
   429
int
slouken@1967
   430
SDL_GetDesktopDisplayMode(SDL_DisplayMode * mode)
slouken@0
   431
{
slouken@2753
   432
    if (!_this) {
slouken@2753
   433
        SDL_UninitializedVideo();
slouken@2753
   434
        return -1;
slouken@2753
   435
    }
slouken@2753
   436
    if (mode) {
slouken@2753
   437
        *mode = SDL_CurrentDisplay.desktop_mode;
slouken@2753
   438
    }
slouken@2753
   439
    return 0;
slouken@0
   440
}
slouken@0
   441
slouken@1967
   442
int
slouken@1967
   443
SDL_GetCurrentDisplayMode(SDL_DisplayMode * mode)
slouken@0
   444
{
slouken@2753
   445
    if (!_this) {
slouken@2753
   446
        SDL_UninitializedVideo();
slouken@2753
   447
        return -1;
slouken@2753
   448
    }
slouken@2753
   449
    if (mode) {
slouken@2753
   450
        *mode = SDL_CurrentDisplay.current_mode;
slouken@2753
   451
    }
slouken@2753
   452
    return 0;
slouken@0
   453
}
slouken@0
   454
slouken@1895
   455
SDL_DisplayMode *
slouken@1895
   456
SDL_GetClosestDisplayMode(const SDL_DisplayMode * mode,
slouken@2753
   457
                          SDL_DisplayMode * closest)
slouken@0
   458
{
slouken@2753
   459
    Uint32 target_format;
slouken@2753
   460
    int target_refresh_rate;
slouken@2753
   461
    int i;
slouken@2753
   462
    SDL_DisplayMode *current, *match;
slouken@0
   463
slouken@2753
   464
    if (!_this || !mode || !closest) {
slouken@2753
   465
        return NULL;
slouken@2753
   466
    }
slouken@2753
   467
    /* Default to the desktop format */
slouken@2753
   468
    if (mode->format) {
slouken@2753
   469
        target_format = mode->format;
slouken@2753
   470
    } else {
slouken@2753
   471
        target_format = SDL_CurrentDisplay.desktop_mode.format;
slouken@2753
   472
    }
slouken@0
   473
slouken@2753
   474
    /* Default to the desktop refresh rate */
slouken@2753
   475
    if (mode->refresh_rate) {
slouken@2753
   476
        target_refresh_rate = mode->refresh_rate;
slouken@2753
   477
    } else {
slouken@2753
   478
        target_refresh_rate = SDL_CurrentDisplay.desktop_mode.refresh_rate;
slouken@2753
   479
    }
slouken@0
   480
slouken@2753
   481
    match = NULL;
slouken@2753
   482
    for (i = 0; i < SDL_GetNumDisplayModes(); ++i) {
slouken@2753
   483
        current = &SDL_CurrentDisplay.display_modes[i];
slouken@0
   484
slouken@2789
   485
        if (current->w && (current->w < mode->w)) {
slouken@2753
   486
            /* Out of sorted modes large enough here */
slouken@2753
   487
            break;
slouken@2753
   488
        }
slouken@2789
   489
        if (current->h && (current->h < mode->h)) {
slouken@2789
   490
            if (current->w && (current->w == mode->w)) {
slouken@2789
   491
                /* Out of sorted modes large enough here */
slouken@2789
   492
                break;
slouken@2789
   493
            }
slouken@2789
   494
            /* Wider, but not tall enough, due to a different
slouken@2789
   495
               aspect ratio. This mode must be skipped, but closer
slouken@2789
   496
               modes may still follow. */
slouken@2789
   497
            continue;
slouken@2789
   498
        }
slouken@2753
   499
        if (!match || current->w < match->w || current->h < match->h) {
slouken@2753
   500
            match = current;
slouken@2753
   501
            continue;
slouken@2753
   502
        }
slouken@2753
   503
        if (current->format != match->format) {
slouken@2753
   504
            /* Sorted highest depth to lowest */
slouken@2753
   505
            if (current->format == target_format ||
slouken@2753
   506
                (SDL_BITSPERPIXEL(current->format) >=
slouken@2753
   507
                 SDL_BITSPERPIXEL(target_format)
slouken@2753
   508
                 && SDL_PIXELTYPE(current->format) ==
slouken@2753
   509
                 SDL_PIXELTYPE(target_format))) {
slouken@2753
   510
                match = current;
slouken@2753
   511
            }
slouken@2753
   512
            continue;
slouken@2753
   513
        }
slouken@2753
   514
        if (current->refresh_rate != match->refresh_rate) {
slouken@2753
   515
            /* Sorted highest refresh to lowest */
slouken@2753
   516
            if (current->refresh_rate >= target_refresh_rate) {
slouken@2753
   517
                match = current;
slouken@2753
   518
            }
slouken@2753
   519
        }
slouken@2753
   520
    }
slouken@2753
   521
    if (match) {
slouken@2753
   522
        if (match->format) {
slouken@2753
   523
            closest->format = match->format;
slouken@2753
   524
        } else {
slouken@2753
   525
            closest->format = mode->format;
slouken@2753
   526
        }
slouken@2753
   527
        if (match->w && match->h) {
slouken@2753
   528
            closest->w = match->w;
slouken@2753
   529
            closest->h = match->h;
slouken@2753
   530
        } else {
slouken@2753
   531
            closest->w = mode->w;
slouken@2753
   532
            closest->h = mode->h;
slouken@2753
   533
        }
slouken@2753
   534
        if (match->refresh_rate) {
slouken@2753
   535
            closest->refresh_rate = match->refresh_rate;
slouken@2753
   536
        } else {
slouken@2753
   537
            closest->refresh_rate = mode->refresh_rate;
slouken@2753
   538
        }
slouken@2753
   539
        closest->driverdata = match->driverdata;
slouken@1895
   540
slouken@2753
   541
        /*
slouken@2753
   542
         * Pick some reasonable defaults if the app and driver don't
slouken@2753
   543
         * care
slouken@2753
   544
         */
slouken@2753
   545
        if (!closest->format) {
slouken@2753
   546
            closest->format = SDL_PIXELFORMAT_RGB888;
slouken@2753
   547
        }
slouken@2753
   548
        if (!closest->w) {
slouken@2753
   549
            closest->w = 640;
slouken@2753
   550
        }
slouken@2753
   551
        if (!closest->h) {
slouken@2753
   552
            closest->h = 480;
slouken@2753
   553
        }
slouken@2753
   554
        return closest;
slouken@2753
   555
    }
slouken@2753
   556
    return NULL;
slouken@0
   557
}
slouken@0
   558
slouken@1895
   559
int
slouken@1895
   560
SDL_SetDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   561
{
slouken@2753
   562
    SDL_VideoDisplay *display;
slouken@2753
   563
    SDL_DisplayMode display_mode;
slouken@2753
   564
    SDL_DisplayMode current_mode;
slouken@2753
   565
    int i, ncolors;
slouken@0
   566
slouken@2753
   567
    if (!_this) {
slouken@2753
   568
        SDL_UninitializedVideo();
slouken@2753
   569
        return -1;
slouken@2753
   570
    }
slouken@2753
   571
    display = &SDL_CurrentDisplay;
slouken@2753
   572
    if (!mode) {
slouken@2753
   573
        mode = &display->desktop_mode;
slouken@2753
   574
    }
slouken@2753
   575
    display_mode = *mode;
slouken@0
   576
slouken@2753
   577
    /* Default to the current mode */
slouken@2753
   578
    if (!display_mode.format) {
slouken@2753
   579
        display_mode.format = display->current_mode.format;
slouken@2753
   580
    }
slouken@2753
   581
    if (!display_mode.w) {
slouken@2753
   582
        display_mode.w = display->current_mode.w;
slouken@2753
   583
    }
slouken@2753
   584
    if (!display_mode.h) {
slouken@2753
   585
        display_mode.h = display->current_mode.h;
slouken@2753
   586
    }
slouken@2753
   587
    if (!display_mode.refresh_rate) {
slouken@2753
   588
        display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@2753
   589
    }
slouken@2753
   590
    /* Get a good video mode, the closest one possible */
slouken@2753
   591
    if (!SDL_GetClosestDisplayMode(&display_mode, &display_mode)) {
slouken@2753
   592
        SDL_SetError("No video mode large enough for %dx%d",
slouken@2753
   593
                     display_mode.w, display_mode.h);
slouken@2753
   594
        return -1;
slouken@2753
   595
    }
slouken@2753
   596
    /* See if there's anything left to do */
slouken@2753
   597
    SDL_GetCurrentDisplayMode(&current_mode);
slouken@2753
   598
    if (SDL_memcmp(&display_mode, &current_mode, sizeof(display_mode)) == 0) {
slouken@2753
   599
        return 0;
slouken@2753
   600
    }
slouken@2753
   601
    /* Actually change the display mode */
slouken@2753
   602
    if (_this->SetDisplayMode(_this, &display_mode) < 0) {
slouken@2753
   603
        return -1;
slouken@2753
   604
    }
slouken@2753
   605
    display->current_mode = display_mode;
slouken@1895
   606
slouken@2753
   607
    /* Set up a palette, if necessary */
slouken@2753
   608
    if (SDL_ISPIXELFORMAT_INDEXED(display_mode.format)) {
slouken@2753
   609
        ncolors = (1 << SDL_BITSPERPIXEL(display_mode.format));
slouken@2753
   610
    } else {
slouken@2753
   611
        ncolors = 0;
slouken@2753
   612
    }
slouken@2753
   613
    if ((!ncolors && display->palette) || (ncolors && !display->palette)
slouken@2753
   614
        || (ncolors && ncolors != display->palette->ncolors)) {
slouken@2753
   615
        if (display->palette) {
slouken@2753
   616
            SDL_FreePalette(display->palette);
slouken@2753
   617
            display->palette = NULL;
slouken@2753
   618
        }
slouken@2753
   619
        if (ncolors) {
slouken@2753
   620
            display->palette = SDL_AllocPalette(ncolors);
slouken@2753
   621
            if (!display->palette) {
slouken@2753
   622
                return -1;
slouken@2753
   623
            }
slouken@2753
   624
            SDL_DitherColors(display->palette->colors,
slouken@2753
   625
                             SDL_BITSPERPIXEL(display_mode.format));
slouken@2753
   626
        }
slouken@2753
   627
    }
slouken@2753
   628
    /* Move any fullscreen windows into position */
slouken@2753
   629
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
   630
        SDL_Window *window = &display->windows[i];
slouken@2753
   631
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2875
   632
            SDL_SetWindowPosition(window->id, window->x, window->y);
slouken@2753
   633
        }
slouken@2753
   634
    }
slouken@1895
   635
slouken@2753
   636
    return 0;
slouken@0
   637
}
slouken@0
   638
slouken@1895
   639
int
slouken@1895
   640
SDL_SetFullscreenDisplayMode(const SDL_DisplayMode * mode)
slouken@0
   641
{
slouken@2753
   642
    SDL_VideoDisplay *display;
slouken@2753
   643
    SDL_DisplayMode fullscreen_mode;
slouken@2753
   644
    int i;
slouken@0
   645
slouken@2753
   646
    if (!_this) {
slouken@2753
   647
        SDL_UninitializedVideo();
slouken@2753
   648
        return -1;
slouken@2753
   649
    }
slouken@2753
   650
    display = &SDL_CurrentDisplay;
slouken@2753
   651
    if (!mode) {
slouken@2753
   652
        mode = &display->desktop_mode;
slouken@2753
   653
    }
slouken@2869
   654
    if (!SDL_GetClosestDisplayMode(mode, &fullscreen_mode)) {
slouken@2869
   655
        SDL_SetError("Couldn't find display mode match");
slouken@2869
   656
        return -1;
slouken@2869
   657
    }
slouken@3092
   658
slouken@2753
   659
    if (SDL_memcmp
slouken@2753
   660
        (&fullscreen_mode, &display->fullscreen_mode,
slouken@2753
   661
         sizeof(fullscreen_mode)) == 0) {
slouken@2753
   662
        /* Nothing to do... */
slouken@2753
   663
        return 0;
slouken@2753
   664
    }
slouken@2753
   665
    display->fullscreen_mode = fullscreen_mode;
slouken@0
   666
slouken@2753
   667
    /* Actually set the mode if we have a fullscreen window visible */
slouken@2753
   668
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
   669
        SDL_Window *window = &display->windows[i];
slouken@2753
   670
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
   671
            if (SDL_SetDisplayMode(&display->fullscreen_mode) < 0) {
slouken@2753
   672
                return -1;
slouken@2753
   673
            }
slouken@2753
   674
        }
slouken@2753
   675
        if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
   676
            SDL_OnWindowResized(window);
slouken@2753
   677
        }
slouken@2753
   678
    }
slouken@2753
   679
    return 0;
slouken@0
   680
}
slouken@0
   681
slouken@1967
   682
int
slouken@1967
   683
SDL_GetFullscreenDisplayMode(SDL_DisplayMode * mode)
slouken@0
   684
{
slouken@2753
   685
    if (!_this) {
slouken@2753
   686
        SDL_UninitializedVideo();
slouken@2753
   687
        return -1;
slouken@2753
   688
    }
slouken@2753
   689
    if (mode) {
slouken@2753
   690
        *mode = SDL_CurrentDisplay.fullscreen_mode;
slouken@2753
   691
    }
slouken@2753
   692
    return 0;
slouken@0
   693
}
slouken@0
   694
slouken@1895
   695
int
slouken@1895
   696
SDL_SetDisplayPalette(const SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   697
{
slouken@2753
   698
    SDL_Palette *palette;
slouken@2753
   699
    int status = 0;
slouken@0
   700
slouken@2753
   701
    if (!_this) {
slouken@2753
   702
        SDL_UninitializedVideo();
slouken@2753
   703
        return -1;
slouken@2753
   704
    }
slouken@2753
   705
    palette = SDL_CurrentDisplay.palette;
slouken@2753
   706
    if (!palette) {
slouken@2753
   707
        SDL_SetError("Display mode does not have a palette");
slouken@2753
   708
        return -1;
slouken@2753
   709
    }
slouken@2753
   710
    status = SDL_SetPaletteColors(palette, colors, firstcolor, ncolors);
slouken@0
   711
slouken@2753
   712
    if (_this->SetDisplayPalette) {
slouken@2753
   713
        if (_this->SetDisplayPalette(_this, palette) < 0) {
slouken@2753
   714
            status = -1;
slouken@2753
   715
        }
slouken@2753
   716
    }
slouken@2753
   717
    return status;
slouken@0
   718
}
slouken@0
   719
slouken@1895
   720
int
slouken@1895
   721
SDL_GetDisplayPalette(SDL_Color * colors, int firstcolor, int ncolors)
slouken@0
   722
{
slouken@2753
   723
    SDL_Palette *palette;
slouken@1895
   724
slouken@2753
   725
    if (!_this) {
slouken@2753
   726
        SDL_UninitializedVideo();
slouken@2753
   727
        return -1;
slouken@2753
   728
    }
slouken@2753
   729
    palette = SDL_CurrentDisplay.palette;
slouken@2753
   730
    if (!palette->ncolors) {
slouken@2753
   731
        SDL_SetError("Display mode does not have a palette");
slouken@2753
   732
        return -1;
slouken@2753
   733
    }
slouken@2753
   734
    if (firstcolor < 0 || (firstcolor + ncolors) > palette->ncolors) {
slouken@2753
   735
        SDL_SetError("Palette indices are out of range");
slouken@2753
   736
        return -1;
slouken@2753
   737
    }
slouken@2753
   738
    SDL_memcpy(colors, &palette->colors[firstcolor],
slouken@2753
   739
               ncolors * sizeof(*colors));
slouken@2753
   740
    return 0;
slouken@0
   741
}
slouken@0
   742
slouken@1895
   743
SDL_WindowID
slouken@1895
   744
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
   745
{
slouken@2753
   746
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@2753
   747
                                  SDL_WINDOW_OPENGL |
slouken@2753
   748
                                  SDL_WINDOW_BORDERLESS |
slouken@2875
   749
                                  SDL_WINDOW_RESIZABLE |
slouken@2875
   750
                                  SDL_WINDOW_INPUT_GRABBED);
slouken@2753
   751
    SDL_VideoDisplay *display;
slouken@2753
   752
    SDL_Window window;
slouken@2753
   753
    int num_windows;
slouken@2753
   754
    SDL_Window *windows;
slouken@0
   755
slouken@2753
   756
    if (!_this) {
slouken@3417
   757
        /* Initialize the video system if needed */
slouken@3417
   758
        if (SDL_VideoInit(NULL, 0) < 0) {
slouken@3417
   759
            return 0;
slouken@3417
   760
        }
slouken@2753
   761
    }
slouken@3057
   762
    if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   763
        if (!_this->GL_CreateContext) {
slouken@3057
   764
            SDL_SetError("No OpenGL support in video driver");
slouken@3057
   765
            return 0;
slouken@3057
   766
        }
slouken@3057
   767
        SDL_GL_LoadLibrary(NULL);
slouken@2753
   768
    }
slouken@2753
   769
    SDL_zero(window);
slouken@2753
   770
    window.id = _this->next_object_id++;
slouken@2753
   771
    window.x = x;
slouken@2753
   772
    window.y = y;
slouken@2753
   773
    window.w = w;
slouken@2753
   774
    window.h = h;
slouken@2753
   775
    window.flags = (flags & allowed_flags);
slouken@2753
   776
    window.display = _this->current_display;
slouken@1912
   777
slouken@2753
   778
    if (_this->CreateWindow && _this->CreateWindow(_this, &window) < 0) {
slouken@3057
   779
        if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   780
            SDL_GL_UnloadLibrary();
slouken@3057
   781
        }
slouken@2753
   782
        return 0;
slouken@2753
   783
    }
slouken@2753
   784
    display = &SDL_CurrentDisplay;
slouken@2753
   785
    num_windows = display->num_windows;
slouken@2753
   786
    windows =
slouken@2753
   787
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@2753
   788
    if (!windows) {
slouken@2753
   789
        if (_this->DestroyWindow) {
slouken@2753
   790
            _this->DestroyWindow(_this, &window);
slouken@2753
   791
        }
slouken@3057
   792
        if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   793
            SDL_GL_UnloadLibrary();
slouken@3057
   794
        }
slouken@2753
   795
        return 0;
slouken@2753
   796
    }
slouken@2753
   797
    windows[num_windows] = window;
slouken@2753
   798
    display->windows = windows;
slouken@2753
   799
    display->num_windows++;
slouken@0
   800
slouken@2753
   801
    if (title) {
slouken@2753
   802
        SDL_SetWindowTitle(window.id, title);
slouken@2753
   803
    }
slouken@2753
   804
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
   805
        SDL_MaximizeWindow(window.id);
slouken@2753
   806
    }
slouken@2753
   807
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
   808
        SDL_MinimizeWindow(window.id);
slouken@2753
   809
    }
slouken@2753
   810
    if (flags & SDL_WINDOW_SHOWN) {
slouken@2753
   811
        SDL_ShowWindow(window.id);
slouken@2753
   812
    }
slouken@2875
   813
    SDL_UpdateWindowGrab(&window);
slouken@2875
   814
slouken@2753
   815
    return window.id;
slouken@1895
   816
}
slouken@0
   817
slouken@1895
   818
SDL_WindowID
slouken@1895
   819
SDL_CreateWindowFrom(const void *data)
slouken@1895
   820
{
slouken@2753
   821
    SDL_VideoDisplay *display;
slouken@2753
   822
    SDL_Window window;
slouken@2753
   823
    int num_windows;
slouken@2753
   824
    SDL_Window *windows;
slouken@0
   825
slouken@2753
   826
    if (!_this) {
slouken@2753
   827
        SDL_UninitializedVideo();
slouken@2753
   828
        return (0);
slouken@2753
   829
    }
slouken@2753
   830
    SDL_zero(window);
slouken@2753
   831
    window.id = _this->next_object_id++;
slouken@2753
   832
    window.display = _this->current_display;
slouken@3057
   833
    window.flags = SDL_WINDOW_FOREIGN;
slouken@1895
   834
slouken@2753
   835
    if (!_this->CreateWindowFrom ||
slouken@2753
   836
        _this->CreateWindowFrom(_this, &window, data) < 0) {
slouken@2753
   837
        return 0;
slouken@2753
   838
    }
slouken@2753
   839
    display = &SDL_CurrentDisplay;
slouken@2753
   840
    num_windows = display->num_windows;
slouken@2753
   841
    windows =
slouken@2753
   842
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@2753
   843
    if (!windows) {
slouken@2753
   844
        if (_this->DestroyWindow) {
slouken@2753
   845
            _this->DestroyWindow(_this, &window);
slouken@2753
   846
        }
slouken@2753
   847
        if (window.title) {
slouken@2753
   848
            SDL_free(window.title);
slouken@2753
   849
        }
slouken@2753
   850
        return 0;
slouken@2753
   851
    }
slouken@2753
   852
    windows[num_windows] = window;
slouken@2753
   853
    display->windows = windows;
slouken@2753
   854
    display->num_windows++;
slouken@1895
   855
slouken@2753
   856
    return window.id;
slouken@1895
   857
}
slouken@1895
   858
slouken@1924
   859
int
slouken@1928
   860
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
   861
{
slouken@3057
   862
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@3057
   863
                                  SDL_WINDOW_OPENGL |
slouken@3057
   864
                                  SDL_WINDOW_BORDERLESS |
slouken@3057
   865
                                  SDL_WINDOW_RESIZABLE |
slouken@3057
   866
                                  SDL_WINDOW_INPUT_GRABBED);
slouken@2753
   867
    char *title = window->title;
slouken@1956
   868
slouken@2753
   869
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@2753
   870
        SDL_SetError("No OpenGL support in video driver");
slouken@2753
   871
        return -1;
slouken@2753
   872
    }
slouken@3057
   873
    if ((window->flags & SDL_WINDOW_OPENGL) != (flags & SDL_WINDOW_OPENGL)) {
slouken@3057
   874
        if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   875
            SDL_GL_LoadLibrary(NULL);
slouken@3057
   876
        } else {
slouken@3057
   877
            SDL_GL_UnloadLibrary();
slouken@3057
   878
        }
slouken@3057
   879
    }
slouken@3057
   880
slouken@3057
   881
    if (window->flags & SDL_WINDOW_FOREIGN) {
slouken@3057
   882
        /* Can't destroy and re-create foreign windows, hrm */
slouken@3057
   883
        flags |= SDL_WINDOW_FOREIGN;
slouken@3057
   884
    } else {
slouken@3057
   885
        flags &= ~SDL_WINDOW_FOREIGN;
slouken@3057
   886
    }
slouken@3057
   887
slouken@3057
   888
    if (_this->DestroyWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@2753
   889
        _this->DestroyWindow(_this, window);
slouken@2753
   890
    }
slouken@3057
   891
slouken@2753
   892
    window->title = NULL;
slouken@3057
   893
    window->flags = (flags & allowed_flags);
slouken@1956
   894
slouken@3057
   895
    if (_this->CreateWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@3057
   896
        if (_this->CreateWindow(_this, window) < 0) {
slouken@3057
   897
            if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   898
                SDL_GL_UnloadLibrary();
slouken@3057
   899
            }
slouken@3057
   900
            return -1;
slouken@3057
   901
        }
slouken@2753
   902
    }
slouken@3057
   903
slouken@2753
   904
    if (title) {
slouken@2753
   905
        SDL_SetWindowTitle(window->id, title);
slouken@2753
   906
        SDL_free(title);
slouken@2753
   907
    }
slouken@2753
   908
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
   909
        SDL_MaximizeWindow(window->id);
slouken@2753
   910
    }
slouken@2753
   911
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
   912
        SDL_MinimizeWindow(window->id);
slouken@2753
   913
    }
slouken@2753
   914
    if (flags & SDL_WINDOW_SHOWN) {
slouken@2753
   915
        SDL_ShowWindow(window->id);
slouken@2753
   916
    }
slouken@2875
   917
    SDL_UpdateWindowGrab(window);
slouken@2875
   918
slouken@2753
   919
    return 0;
slouken@1924
   920
}
slouken@1924
   921
slouken@2753
   922
SDL_Window *
slouken@1895
   923
SDL_GetWindowFromID(SDL_WindowID windowID)
slouken@1895
   924
{
slouken@2753
   925
    int i, j;
slouken@1895
   926
slouken@2753
   927
    if (!_this) {
slouken@2753
   928
        SDL_UninitializedVideo();
slouken@2753
   929
        return NULL;
slouken@2753
   930
    }
slouken@3417
   931
    if (windowID) {
slouken@3417
   932
        for (i = 0; i < _this->num_displays; ++i) {
slouken@3417
   933
            SDL_VideoDisplay *display = &_this->displays[i];
slouken@3417
   934
            for (j = 0; j < display->num_windows; ++j) {
slouken@3417
   935
                SDL_Window *window = &display->windows[j];
slouken@3417
   936
                if (window->id == windowID) {
slouken@3417
   937
                    return window;
slouken@3417
   938
                }
slouken@3417
   939
            }
slouken@3417
   940
        }
slouken@3417
   941
    } else {
slouken@3417
   942
        /* Just return the first active window */
slouken@3417
   943
        for (i = 0; i < _this->num_displays; ++i) {
slouken@3417
   944
            SDL_VideoDisplay *display = &_this->displays[i];
slouken@3417
   945
            for (j = 0; j < display->num_windows; ++j) {
slouken@3417
   946
                SDL_Window *window = &display->windows[j];
slouken@2753
   947
                return window;
slouken@2753
   948
            }
slouken@2753
   949
        }
slouken@2753
   950
    }
slouken@3417
   951
    /* Couldn't find the window with the requested ID */
slouken@3417
   952
    SDL_SetError("Invalid window ID");
slouken@2753
   953
    return NULL;
slouken@1895
   954
}
slouken@1895
   955
slouken@1895
   956
SDL_VideoDisplay *
slouken@1895
   957
SDL_GetDisplayFromWindow(SDL_Window * window)
slouken@1895
   958
{
slouken@2753
   959
    if (!_this) {
slouken@2753
   960
        SDL_UninitializedVideo();
slouken@2753
   961
        return NULL;
slouken@2753
   962
    }
slouken@2753
   963
    if (!window) {
slouken@2753
   964
        return NULL;
slouken@2753
   965
    }
slouken@2753
   966
    return &_this->displays[window->display];
slouken@1895
   967
}
slouken@1895
   968
slouken@3417
   969
static __inline__ SDL_Renderer *
slouken@3417
   970
SDL_GetCurrentRenderer()
slouken@3417
   971
{
slouken@3417
   972
    if (!_this) {
slouken@3417
   973
        SDL_UninitializedVideo();
slouken@3417
   974
        return NULL;
slouken@3417
   975
    }
slouken@3417
   976
    if (!SDL_CurrentRenderer) {
slouken@3417
   977
        if (SDL_CreateRenderer(0, -1, 0) < 0) {
slouken@3417
   978
            return NULL;
slouken@3417
   979
        }
slouken@3417
   980
    }
slouken@3417
   981
    return SDL_CurrentRenderer;
slouken@3417
   982
}
slouken@3417
   983
slouken@1895
   984
Uint32
slouken@1895
   985
SDL_GetWindowFlags(SDL_WindowID windowID)
slouken@1895
   986
{
slouken@2753
   987
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   988
slouken@2753
   989
    if (!window) {
slouken@2753
   990
        return 0;
slouken@2753
   991
    }
slouken@2753
   992
    return window->flags;
slouken@1895
   993
}
slouken@1895
   994
slouken@1895
   995
void
slouken@1895
   996
SDL_SetWindowTitle(SDL_WindowID windowID, const char *title)
slouken@1895
   997
{
slouken@2753
   998
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   999
slouken@2753
  1000
    if (!window || title == window->title) {
slouken@2753
  1001
        return;
slouken@2753
  1002
    }
slouken@2753
  1003
    if (window->title) {
slouken@2753
  1004
        SDL_free(window->title);
slouken@2753
  1005
    }
slouken@2753
  1006
    if (title) {
slouken@2753
  1007
        window->title = SDL_strdup(title);
slouken@2753
  1008
    } else {
slouken@2753
  1009
        window->title = NULL;
slouken@2753
  1010
    }
slouken@1956
  1011
slouken@2753
  1012
    if (_this->SetWindowTitle) {
slouken@2753
  1013
        _this->SetWindowTitle(_this, window);
slouken@2753
  1014
    }
slouken@1895
  1015
}
slouken@1895
  1016
slouken@2753
  1017
const char *
slouken@1895
  1018
SDL_GetWindowTitle(SDL_WindowID windowID)
slouken@1895
  1019
{
slouken@2753
  1020
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1021
slouken@2753
  1022
    if (!window) {
slouken@2753
  1023
        return NULL;
slouken@2753
  1024
    }
slouken@2753
  1025
    return window->title;
slouken@1895
  1026
}
slouken@1895
  1027
slouken@1895
  1028
void
slouken@2967
  1029
SDL_SetWindowIcon(SDL_WindowID windowID, SDL_Surface * icon)
slouken@2967
  1030
{
slouken@2967
  1031
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2967
  1032
slouken@2967
  1033
    if (!window) {
slouken@2967
  1034
        return;
slouken@2967
  1035
    }
slouken@2967
  1036
    if (_this->SetWindowIcon) {
slouken@2967
  1037
        _this->SetWindowIcon(_this, window, icon);
slouken@2967
  1038
    }
slouken@2967
  1039
}
slouken@2967
  1040
slouken@2967
  1041
void
slouken@1895
  1042
SDL_SetWindowData(SDL_WindowID windowID, void *userdata)
slouken@1895
  1043
{
slouken@2753
  1044
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1045
slouken@2753
  1046
    if (!window) {
slouken@2753
  1047
        return;
slouken@2753
  1048
    }
slouken@2753
  1049
    window->userdata = userdata;
slouken@1895
  1050
}
slouken@1895
  1051
slouken@2753
  1052
void *
slouken@1895
  1053
SDL_GetWindowData(SDL_WindowID windowID)
slouken@1895
  1054
{
slouken@2753
  1055
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1056
slouken@2753
  1057
    if (!window) {
slouken@2753
  1058
        return NULL;
slouken@2753
  1059
    }
slouken@2753
  1060
    return window->userdata;
slouken@1895
  1061
}
slouken@1895
  1062
slouken@1895
  1063
void
slouken@1895
  1064
SDL_SetWindowPosition(SDL_WindowID windowID, int x, int y)
slouken@1895
  1065
{
slouken@2753
  1066
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  1067
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1068
slouken@2753
  1069
    if (!window) {
slouken@2753
  1070
        return;
slouken@2753
  1071
    }
slouken@2875
  1072
    if (x != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1073
        window->x = x;
slouken@2753
  1074
    }
slouken@2875
  1075
    if (y != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1076
        window->y = y;
slouken@2753
  1077
    }
slouken@2753
  1078
    if (_this->SetWindowPosition) {
slouken@2753
  1079
        _this->SetWindowPosition(_this, window);
slouken@2753
  1080
    }
slouken@2875
  1081
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MOVED, x, y);
slouken@1895
  1082
}
slouken@1895
  1083
slouken@1895
  1084
void
slouken@1895
  1085
SDL_GetWindowPosition(SDL_WindowID windowID, int *x, int *y)
slouken@1895
  1086
{
slouken@2753
  1087
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1088
slouken@2753
  1089
    if (!window) {
slouken@2753
  1090
        return;
slouken@2753
  1091
    }
slouken@2753
  1092
    if (x) {
slouken@2753
  1093
        *x = window->x;
slouken@2753
  1094
    }
slouken@2753
  1095
    if (y) {
slouken@2753
  1096
        *y = window->y;
slouken@2753
  1097
    }
slouken@1895
  1098
}
slouken@1895
  1099
slouken@1895
  1100
void
slouken@1895
  1101
SDL_SetWindowSize(SDL_WindowID windowID, int w, int h)
slouken@1895
  1102
{
slouken@2753
  1103
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1104
slouken@2753
  1105
    if (!window) {
slouken@2753
  1106
        return;
slouken@2753
  1107
    }
slouken@2753
  1108
    window->w = w;
slouken@2753
  1109
    window->h = h;
slouken@1895
  1110
slouken@2753
  1111
    if (_this->SetWindowSize) {
slouken@2753
  1112
        _this->SetWindowSize(_this, window);
slouken@2753
  1113
    }
slouken@2849
  1114
    SDL_OnWindowResized(window);
slouken@1895
  1115
}
slouken@1895
  1116
slouken@1895
  1117
void
slouken@1895
  1118
SDL_GetWindowSize(SDL_WindowID windowID, int *w, int *h)
slouken@1895
  1119
{
slouken@2753
  1120
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1121
slouken@2860
  1122
    if (window) {
slouken@2849
  1123
        if (w) {
slouken@2849
  1124
            *w = window->w;
slouken@2849
  1125
        }
slouken@2849
  1126
        if (h) {
slouken@2849
  1127
            *h = window->h;
slouken@2849
  1128
        }
slouken@2849
  1129
    } else {
slouken@2849
  1130
        if (w) {
slouken@2849
  1131
            *w = 0;
slouken@2849
  1132
        }
slouken@2849
  1133
        if (h) {
slouken@2849
  1134
            *h = 0;
slouken@2849
  1135
        }
slouken@2753
  1136
    }
slouken@1895
  1137
}
slouken@1895
  1138
slouken@1895
  1139
void
slouken@1895
  1140
SDL_ShowWindow(SDL_WindowID windowID)
slouken@1895
  1141
{
slouken@2753
  1142
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1143
slouken@2753
  1144
    if (!window || (window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1145
        return;
slouken@2753
  1146
    }
slouken@1895
  1147
slouken@2753
  1148
    if (_this->ShowWindow) {
slouken@2753
  1149
        _this->ShowWindow(_this, window);
slouken@2753
  1150
    }
slouken@2875
  1151
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1152
}
slouken@1895
  1153
slouken@1895
  1154
void
slouken@1895
  1155
SDL_HideWindow(SDL_WindowID windowID)
slouken@1895
  1156
{
slouken@2753
  1157
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1158
slouken@2753
  1159
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1160
        return;
slouken@2753
  1161
    }
slouken@1895
  1162
slouken@2753
  1163
    if (_this->HideWindow) {
slouken@2753
  1164
        _this->HideWindow(_this, window);
slouken@2753
  1165
    }
slouken@2875
  1166
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1167
}
slouken@1895
  1168
slouken@1895
  1169
void
slouken@1895
  1170
SDL_RaiseWindow(SDL_WindowID windowID)
slouken@1895
  1171
{
slouken@2753
  1172
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1173
slouken@2753
  1174
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1175
        return;
slouken@2753
  1176
    }
slouken@2753
  1177
    if (_this->RaiseWindow) {
slouken@2753
  1178
        _this->RaiseWindow(_this, window);
slouken@2753
  1179
    }
slouken@1895
  1180
}
slouken@1895
  1181
slouken@1895
  1182
void
slouken@1895
  1183
SDL_MaximizeWindow(SDL_WindowID windowID)
slouken@1895
  1184
{
slouken@2753
  1185
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1186
slouken@2753
  1187
    if (!window || (window->flags & SDL_WINDOW_MAXIMIZED)) {
slouken@2753
  1188
        return;
slouken@2753
  1189
    }
slouken@1895
  1190
slouken@2753
  1191
    if (_this->MaximizeWindow) {
slouken@2753
  1192
        _this->MaximizeWindow(_this, window);
slouken@2753
  1193
    }
slouken@2875
  1194
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@1895
  1195
}
slouken@1895
  1196
slouken@1895
  1197
void
slouken@1895
  1198
SDL_MinimizeWindow(SDL_WindowID windowID)
slouken@1895
  1199
{
slouken@2753
  1200
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1201
slouken@2753
  1202
    if (!window || (window->flags & SDL_WINDOW_MINIMIZED)) {
slouken@2753
  1203
        return;
slouken@2753
  1204
    }
slouken@1895
  1205
slouken@2753
  1206
    if (_this->MinimizeWindow) {
slouken@2753
  1207
        _this->MinimizeWindow(_this, window);
slouken@2753
  1208
    }
slouken@2875
  1209
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@1895
  1210
}
slouken@1895
  1211
slouken@1895
  1212
void
slouken@1895
  1213
SDL_RestoreWindow(SDL_WindowID windowID)
slouken@1895
  1214
{
slouken@2753
  1215
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1216
slouken@2753
  1217
    if (!window
slouken@2934
  1218
        || !(window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@2753
  1219
        return;
slouken@2753
  1220
    }
slouken@1895
  1221
slouken@2753
  1222
    if (_this->RestoreWindow) {
slouken@2753
  1223
        _this->RestoreWindow(_this, window);
slouken@2753
  1224
    }
slouken@2875
  1225
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@1895
  1226
}
slouken@1895
  1227
slouken@1895
  1228
int
slouken@1895
  1229
SDL_SetWindowFullscreen(SDL_WindowID windowID, int fullscreen)
slouken@1895
  1230
{
slouken@2753
  1231
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1232
slouken@2753
  1233
    if (!window) {
slouken@2753
  1234
        return -1;
slouken@2753
  1235
    }
slouken@2753
  1236
    if (fullscreen) {
slouken@2753
  1237
        fullscreen = SDL_WINDOW_FULLSCREEN;
slouken@2753
  1238
    }
slouken@2753
  1239
    if ((window->flags & SDL_WINDOW_FULLSCREEN) == fullscreen) {
slouken@2753
  1240
        return 0;
slouken@2753
  1241
    }
slouken@2753
  1242
    if (fullscreen) {
slouken@2753
  1243
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
  1244
slouken@2753
  1245
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
  1246
            SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1247
slouken@2753
  1248
            /* Hide any other fullscreen windows */
slouken@2753
  1249
            int i;
slouken@2753
  1250
            for (i = 0; i < display->num_windows; ++i) {
slouken@2753
  1251
                SDL_Window *other = &display->windows[i];
slouken@2753
  1252
                if (other->id != windowID && FULLSCREEN_VISIBLE(other)) {
slouken@2753
  1253
                    SDL_MinimizeWindow(other->id);
slouken@2753
  1254
                }
slouken@2753
  1255
            }
slouken@1895
  1256
slouken@2753
  1257
            SDL_SetDisplayMode(&display->fullscreen_mode);
slouken@2753
  1258
        }
slouken@2753
  1259
    } else {
slouken@2753
  1260
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@1895
  1261
slouken@2753
  1262
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
  1263
            SDL_SetDisplayMode(NULL);
slouken@2753
  1264
        }
slouken@2753
  1265
    }
slouken@2753
  1266
    return 0;
slouken@1895
  1267
}
slouken@1895
  1268
slouken@1895
  1269
void
slouken@1895
  1270
SDL_SetWindowGrab(SDL_WindowID windowID, int mode)
slouken@1895
  1271
{
slouken@2753
  1272
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1273
slouken@2753
  1274
    if (!window || (!!mode == !!(window->flags & SDL_WINDOW_INPUT_GRABBED))) {
slouken@2753
  1275
        return;
slouken@2753
  1276
    }
slouken@2753
  1277
    if (mode) {
slouken@2753
  1278
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1279
    } else {
slouken@2753
  1280
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1281
    }
slouken@2875
  1282
    SDL_UpdateWindowGrab(window);
slouken@2875
  1283
}
slouken@1895
  1284
slouken@2875
  1285
static void
slouken@2876
  1286
SDL_UpdateWindowGrab(SDL_Window * window)
slouken@2875
  1287
{
slouken@2753
  1288
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@2753
  1289
        _this->SetWindowGrab(_this, window);
slouken@2753
  1290
    }
slouken@1895
  1291
}
slouken@1895
  1292
slouken@1895
  1293
int
slouken@1895
  1294
SDL_GetWindowGrab(SDL_WindowID windowID)
slouken@1895
  1295
{
slouken@2753
  1296
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1297
slouken@2753
  1298
    if (!window) {
slouken@2753
  1299
        return 0;
slouken@2753
  1300
    }
slouken@2753
  1301
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1302
}
slouken@1895
  1303
slouken@1895
  1304
void
slouken@1895
  1305
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1306
{
slouken@2875
  1307
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2875
  1308
        SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_FOCUS_GAINED, 0, 0);
slouken@2875
  1309
    }
slouken@1895
  1310
}
slouken@1895
  1311
slouken@1895
  1312
void
slouken@1895
  1313
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1314
{
slouken@2875
  1315
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2875
  1316
        SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@2875
  1317
    }
slouken@1895
  1318
}
slouken@1895
  1319
slouken@1895
  1320
void
slouken@1970
  1321
SDL_OnWindowResized(SDL_Window * window)
slouken@1970
  1322
{
slouken@2753
  1323
    SDL_Renderer *renderer = window->renderer;
slouken@1970
  1324
slouken@2753
  1325
    if (renderer && renderer->DisplayModeChanged) {
slouken@2753
  1326
        renderer->DisplayModeChanged(renderer);
slouken@2753
  1327
    }
slouken@1970
  1328
}
slouken@1970
  1329
slouken@1970
  1330
void
slouken@1895
  1331
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1332
{
slouken@2753
  1333
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1334
slouken@2753
  1335
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
  1336
        SDL_SetDisplayMode(&display->fullscreen_mode);
slouken@2753
  1337
    }
slouken@2753
  1338
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@2753
  1339
        _this->SetDisplayGammaRamp(_this, display->gamma);
slouken@2753
  1340
    }
slouken@2876
  1341
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN))
slouken@2876
  1342
        && _this->SetWindowGrab) {
slouken@2753
  1343
        _this->SetWindowGrab(_this, window);
slouken@2753
  1344
    }
slouken@1895
  1345
}
slouken@1895
  1346
slouken@1895
  1347
void
slouken@1895
  1348
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1349
{
slouken@2753
  1350
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1351
slouken@2753
  1352
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
  1353
        SDL_MinimizeWindow(window->id);
slouken@2753
  1354
        SDL_SetDisplayMode(NULL);
slouken@2753
  1355
    }
slouken@2753
  1356
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@2753
  1357
        _this->SetDisplayGammaRamp(_this, display->saved_gamma);
slouken@2753
  1358
    }
slouken@2876
  1359
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN))
slouken@2876
  1360
        && _this->SetWindowGrab) {
slouken@2753
  1361
        _this->SetWindowGrab(_this, window);
slouken@2753
  1362
    }
slouken@1895
  1363
}
slouken@1895
  1364
slouken@1895
  1365
SDL_WindowID
slouken@1895
  1366
SDL_GetFocusWindow(void)
slouken@1895
  1367
{
slouken@2753
  1368
    SDL_VideoDisplay *display;
slouken@2753
  1369
    int i;
slouken@1895
  1370
slouken@2753
  1371
    if (!_this) {
slouken@2753
  1372
        return 0;
slouken@2753
  1373
    }
slouken@2753
  1374
    display = &SDL_CurrentDisplay;
slouken@2753
  1375
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
  1376
        SDL_Window *window = &display->windows[i];
slouken@1895
  1377
slouken@2753
  1378
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@2753
  1379
            return window->id;
slouken@2753
  1380
        }
slouken@2753
  1381
    }
slouken@2753
  1382
    return 0;
slouken@1895
  1383
}
slouken@1895
  1384
slouken@1895
  1385
void
slouken@1895
  1386
SDL_DestroyWindow(SDL_WindowID windowID)
slouken@1895
  1387
{
slouken@2753
  1388
    int i, j;
slouken@1895
  1389
slouken@2753
  1390
    if (!_this) {
slouken@2753
  1391
        return;
slouken@2753
  1392
    }
slouken@2753
  1393
    /* Restore video mode, etc. */
slouken@2753
  1394
    SDL_SendWindowEvent(windowID, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@1895
  1395
slouken@2753
  1396
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
  1397
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  1398
        for (j = 0; j < display->num_windows; ++j) {
slouken@2753
  1399
            SDL_Window *window = &display->windows[j];
slouken@2753
  1400
            if (window->id != windowID) {
slouken@2753
  1401
                continue;
slouken@2753
  1402
            }
slouken@2753
  1403
            if (window->title) {
slouken@2753
  1404
                SDL_free(window->title);
slouken@2753
  1405
                window->title = NULL;
slouken@2753
  1406
            }
slouken@2753
  1407
            if (window->renderer) {
slouken@2753
  1408
                SDL_DestroyRenderer(window->id);
slouken@2753
  1409
                window->renderer = NULL;
slouken@2753
  1410
            }
slouken@2753
  1411
            if (_this->DestroyWindow) {
slouken@2753
  1412
                _this->DestroyWindow(_this, window);
slouken@2753
  1413
            }
slouken@3057
  1414
            if (window->flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1415
                SDL_GL_UnloadLibrary();
slouken@3057
  1416
            }
slouken@2753
  1417
            if (j != display->num_windows - 1) {
slouken@2753
  1418
                SDL_memcpy(&display->windows[i],
slouken@2753
  1419
                           &display->windows[i + 1],
slouken@2753
  1420
                           (display->num_windows - i - 1) * sizeof(*window));
slouken@2753
  1421
            }
slouken@2753
  1422
            --display->num_windows;
slouken@2753
  1423
            return;
slouken@2753
  1424
        }
slouken@2753
  1425
    }
slouken@1895
  1426
}
slouken@1895
  1427
slouken@1895
  1428
void
slouken@1895
  1429
SDL_AddRenderDriver(int displayIndex, const SDL_RenderDriver * driver)
slouken@1895
  1430
{
slouken@2753
  1431
    SDL_VideoDisplay *display;
slouken@2753
  1432
    SDL_RenderDriver *render_drivers;
slouken@1895
  1433
slouken@2753
  1434
    if (displayIndex >= _this->num_displays) {
slouken@2753
  1435
        return;
slouken@2753
  1436
    }
slouken@2753
  1437
    display = &_this->displays[displayIndex];
slouken@2119
  1438
slouken@2753
  1439
    render_drivers =
slouken@2753
  1440
        SDL_realloc(display->render_drivers,
slouken@2753
  1441
                    (display->num_render_drivers +
slouken@2753
  1442
                     1) * sizeof(*render_drivers));
slouken@2753
  1443
    if (render_drivers) {
slouken@2753
  1444
        render_drivers[display->num_render_drivers] = *driver;
slouken@2753
  1445
        display->render_drivers = render_drivers;
slouken@2753
  1446
        display->num_render_drivers++;
slouken@2753
  1447
    }
slouken@1895
  1448
}
slouken@1895
  1449
slouken@1895
  1450
int
slouken@1969
  1451
SDL_GetNumRenderDrivers(void)
slouken@1895
  1452
{
slouken@2753
  1453
    if (_this) {
slouken@2753
  1454
        return SDL_CurrentDisplay.num_render_drivers;
slouken@2753
  1455
    }
slouken@2753
  1456
    return 0;
slouken@1895
  1457
}
slouken@1895
  1458
slouken@1895
  1459
int
slouken@1969
  1460
SDL_GetRenderDriverInfo(int index, SDL_RendererInfo * info)
slouken@1895
  1461
{
slouken@2753
  1462
    if (!_this) {
slouken@2753
  1463
        SDL_UninitializedVideo();
slouken@2753
  1464
        return -1;
slouken@2753
  1465
    }
slouken@2753
  1466
    if (index < 0 || index >= SDL_GetNumRenderDrivers()) {
slouken@2753
  1467
        SDL_SetError("index must be in the range of 0 - %d",
slouken@2753
  1468
                     SDL_GetNumRenderDrivers() - 1);
slouken@2753
  1469
        return -1;
slouken@2753
  1470
    }
slouken@2753
  1471
    *info = SDL_CurrentDisplay.render_drivers[index].info;
slouken@2753
  1472
    return 0;
slouken@1895
  1473
}
slouken@1895
  1474
slouken@1895
  1475
int
slouken@1895
  1476
SDL_CreateRenderer(SDL_WindowID windowID, int index, Uint32 flags)
slouken@1895
  1477
{
slouken@2753
  1478
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1479
slouken@2753
  1480
    if (!window) {
slouken@3091
  1481
        SDL_SetError("Invalid window ID");
slouken@3091
  1482
        return -1;
slouken@2753
  1483
    }
slouken@3424
  1484
slouken@3424
  1485
    /* Free any existing renderer */
slouken@3424
  1486
    SDL_DestroyRenderer(windowID);
slouken@3424
  1487
slouken@2753
  1488
    if (index < 0) {
slouken@2753
  1489
        const char *override = SDL_getenv("SDL_VIDEO_RENDERER");
slouken@3424
  1490
        if (override) {
slouken@3424
  1491
            int i, n = SDL_GetNumRenderDrivers();
slouken@3424
  1492
            for (i = 0; i < n; ++i) {
slouken@3424
  1493
                SDL_RenderDriver *driver =
slouken@3424
  1494
                    &SDL_CurrentDisplay.render_drivers[i];
slouken@3424
  1495
                if (SDL_strcasecmp(override, driver->info.name) == 0) {
slouken@3424
  1496
                    index = i;
slouken@3424
  1497
                    break;
slouken@3424
  1498
                }
slouken@3424
  1499
            }
slouken@3424
  1500
        }
slouken@3424
  1501
    }
slouken@3424
  1502
    if (index < 0) {
slouken@2753
  1503
        int n = SDL_GetNumRenderDrivers();
slouken@2753
  1504
        for (index = 0; index < n; ++index) {
slouken@2753
  1505
            SDL_RenderDriver *driver =
slouken@2753
  1506
                &SDL_CurrentDisplay.render_drivers[index];
slouken@1895
  1507
slouken@3424
  1508
            if ((driver->info.flags & flags) == flags) {
slouken@3424
  1509
                /* Create a new renderer instance */
slouken@3424
  1510
                window->renderer = SDL_CurrentDisplay.render_drivers[index].CreateRenderer(window, flags);
slouken@3424
  1511
                if (window->renderer) {
slouken@3424
  1512
                    /* Yay, we got one! */
slouken@2753
  1513
                    break;
slouken@2753
  1514
                }
slouken@2753
  1515
            }
slouken@2753
  1516
        }
slouken@2753
  1517
        if (index == n) {
slouken@2753
  1518
            SDL_SetError("Couldn't find matching render driver");
slouken@2753
  1519
            return -1;
slouken@2753
  1520
        }
slouken@3424
  1521
    } else {
slouken@3424
  1522
        if (index >= SDL_GetNumRenderDrivers()) {
slouken@3424
  1523
            SDL_SetError("index must be -1 or in the range of 0 - %d",
slouken@3424
  1524
                         SDL_GetNumRenderDrivers() - 1);
slouken@3424
  1525
            return -1;
slouken@3424
  1526
        }
slouken@3424
  1527
slouken@3424
  1528
        /* Create a new renderer instance */
slouken@3424
  1529
        window->renderer = SDL_CurrentDisplay.render_drivers[index].CreateRenderer(window, flags);
slouken@2753
  1530
    }
slouken@3092
  1531
slouken@3139
  1532
    if (window->renderer == NULL) {
slouken@3139
  1533
        /* Assuming renderer set its error */
slouken@3139
  1534
        return -1;
slouken@3092
  1535
    }
slouken@3092
  1536
slouken@2753
  1537
    SDL_SelectRenderer(window->id);
slouken@1895
  1538
slouken@2753
  1539
    return 0;
slouken@1895
  1540
}
slouken@1895
  1541
slouken@1895
  1542
int
slouken@1895
  1543
SDL_SelectRenderer(SDL_WindowID windowID)
slouken@1895
  1544
{
slouken@2753
  1545
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  1546
    SDL_Renderer *renderer;
slouken@1895
  1547
slouken@3318
  1548
    if (!window) {
slouken@3318
  1549
        SDL_SetError("Invalid window ID");
slouken@2753
  1550
        return -1;
slouken@2753
  1551
    }
slouken@2753
  1552
    renderer = window->renderer;
slouken@3417
  1553
    if (renderer) {
slouken@3417
  1554
        if (renderer->ActivateRenderer) {
slouken@3417
  1555
            if (renderer->ActivateRenderer(renderer) < 0) {
slouken@3417
  1556
                return -1;
slouken@3417
  1557
            }
slouken@3417
  1558
        }
slouken@3417
  1559
        SDL_CurrentDisplay.current_renderer = renderer;
slouken@3417
  1560
    } else {
slouken@3417
  1561
        if (SDL_CreateRenderer(windowID, -1, 0) < 0) {
slouken@2753
  1562
            return -1;
slouken@2753
  1563
        }
slouken@2753
  1564
    }
slouken@2753
  1565
    return 0;
slouken@1895
  1566
}
slouken@1895
  1567
slouken@1969
  1568
int
slouken@1969
  1569
SDL_GetRendererInfo(SDL_RendererInfo * info)
slouken@1969
  1570
{
slouken@3417
  1571
    SDL_Renderer *renderer = SDL_GetCurrentRenderer();
slouken@3417
  1572
    if (!renderer) {
slouken@2753
  1573
        return -1;
slouken@2753
  1574
    }
slouken@3417
  1575
    *info = renderer->info;
slouken@2753
  1576
    return 0;
slouken@1969
  1577
}
slouken@1969
  1578
slouken@1895
  1579
SDL_TextureID
slouken@1895
  1580
SDL_CreateTexture(Uint32 format, int access, int w, int h)
slouken@1895
  1581
{
slouken@2753
  1582
    int hash;
slouken@2753
  1583
    SDL_Renderer *renderer;
slouken@2753
  1584
    SDL_Texture *texture;
slouken@1895
  1585
slouken@3417
  1586
    renderer = SDL_GetCurrentRenderer();
slouken@2810
  1587
    if (!renderer) {
slouken@2810
  1588
        return 0;
slouken@2810
  1589
    }
slouken@2810
  1590
    if (!renderer->CreateTexture) {
slouken@2810
  1591
        SDL_Unsupported();
slouken@2753
  1592
        return 0;
slouken@2753
  1593
    }
slouken@2753
  1594
    texture = (SDL_Texture *) SDL_calloc(1, sizeof(*texture));
slouken@2753
  1595
    if (!texture) {
slouken@2753
  1596
        SDL_OutOfMemory();
slouken@2753
  1597
        return 0;
slouken@2753
  1598
    }
slouken@2753
  1599
    texture->id = _this->next_object_id++;
slouken@2753
  1600
    texture->format = format;
slouken@2753
  1601
    texture->access = access;
slouken@2753
  1602
    texture->w = w;
slouken@2753
  1603
    texture->h = h;
slouken@2753
  1604
    texture->r = 255;
slouken@2753
  1605
    texture->g = 255;
slouken@2753
  1606
    texture->b = 255;
slouken@2753
  1607
    texture->a = 255;
slouken@2753
  1608
    texture->renderer = renderer;
slouken@1895
  1609
slouken@2753
  1610
    if (renderer->CreateTexture(renderer, texture) < 0) {
slouken@2753
  1611
        if (renderer->DestroyTexture) {
slouken@2753
  1612
            renderer->DestroyTexture(renderer, texture);
slouken@2753
  1613
        }
slouken@2753
  1614
        SDL_free(texture);
slouken@2753
  1615
        return 0;
slouken@2753
  1616
    }
slouken@2753
  1617
    hash = (texture->id % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  1618
    texture->next = SDL_CurrentDisplay.textures[hash];
slouken@2753
  1619
    SDL_CurrentDisplay.textures[hash] = texture;
slouken@1895
  1620
slouken@2753
  1621
    return texture->id;
slouken@1895
  1622
}
slouken@1895
  1623
slouken@1895
  1624
SDL_TextureID
slouken@2222
  1625
SDL_CreateTextureFromSurface(Uint32 format, SDL_Surface * surface)
slouken@1895
  1626
{
slouken@2753
  1627
    SDL_TextureID textureID;
slouken@3057
  1628
    Uint32 requested_format = format;
slouken@2753
  1629
    SDL_PixelFormat *fmt;
lestat@3166
  1630
    SDL_Renderer *renderer;
slouken@2753
  1631
    int bpp;
slouken@2753
  1632
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@1895
  1633
slouken@2753
  1634
    if (!surface) {
slouken@2753
  1635
        SDL_SetError("SDL_CreateTextureFromSurface() passed NULL surface");
slouken@2753
  1636
        return 0;
slouken@2753
  1637
    }
slouken@2753
  1638
    fmt = surface->format;
slouken@1895
  1639
slouken@3417
  1640
    renderer = SDL_GetCurrentRenderer();
lestat@3166
  1641
    if (!renderer) {
lestat@3166
  1642
        return 0;
lestat@3166
  1643
    }
lestat@3166
  1644
slouken@2753
  1645
    if (format) {
slouken@2753
  1646
        if (!SDL_PixelFormatEnumToMasks
slouken@2753
  1647
            (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@2753
  1648
            SDL_SetError("Unknown pixel format");
slouken@2753
  1649
            return 0;
slouken@2753
  1650
        }
slouken@2753
  1651
    } else {
slouken@2753
  1652
        if (surface->format->Amask
slouken@2753
  1653
            || !(surface->map->info.flags &
slouken@2753
  1654
                 (SDL_COPY_COLORKEY | SDL_COPY_MASK | SDL_COPY_BLEND))) {
slouken@3196
  1655
            Uint32 it;
lestat@3178
  1656
            int pfmt;
lestat@3178
  1657
lestat@3178
  1658
            /* Pixel formats, sorted by best first */
slouken@3186
  1659
            static const Uint32 sdl_pformats[] = {
slouken@3186
  1660
                SDL_PIXELFORMAT_ARGB8888,
slouken@3186
  1661
                SDL_PIXELFORMAT_RGBA8888,
slouken@3186
  1662
                SDL_PIXELFORMAT_ABGR8888,
slouken@3186
  1663
                SDL_PIXELFORMAT_BGRA8888,
slouken@3186
  1664
                SDL_PIXELFORMAT_RGB888,
slouken@3186
  1665
                SDL_PIXELFORMAT_BGR888,
slouken@3186
  1666
                SDL_PIXELFORMAT_RGB24,
slouken@3186
  1667
                SDL_PIXELFORMAT_BGR24,
slouken@3186
  1668
                SDL_PIXELFORMAT_RGB565,
slouken@3186
  1669
                SDL_PIXELFORMAT_BGR565,
slouken@3186
  1670
                SDL_PIXELFORMAT_ARGB1555,
slouken@3186
  1671
                SDL_PIXELFORMAT_ABGR1555,
slouken@3186
  1672
                SDL_PIXELFORMAT_RGB555,
slouken@3186
  1673
                SDL_PIXELFORMAT_BGR555,
slouken@3186
  1674
                SDL_PIXELFORMAT_ARGB4444,
slouken@3186
  1675
                SDL_PIXELFORMAT_ABGR4444,
slouken@3186
  1676
                SDL_PIXELFORMAT_RGB444,
slouken@3186
  1677
                SDL_PIXELFORMAT_ARGB2101010,
slouken@3186
  1678
                SDL_PIXELFORMAT_INDEX8,
slouken@3186
  1679
                SDL_PIXELFORMAT_INDEX4LSB,
slouken@3186
  1680
                SDL_PIXELFORMAT_INDEX4MSB,
slouken@3186
  1681
                SDL_PIXELFORMAT_RGB332,
slouken@3186
  1682
                SDL_PIXELFORMAT_INDEX1LSB,
slouken@3186
  1683
                SDL_PIXELFORMAT_INDEX1MSB,
slouken@3186
  1684
                SDL_PIXELFORMAT_UNKNOWN
slouken@3186
  1685
            };
lestat@3178
  1686
slouken@2753
  1687
            bpp = fmt->BitsPerPixel;
slouken@2753
  1688
            Rmask = fmt->Rmask;
slouken@2753
  1689
            Gmask = fmt->Gmask;
slouken@2753
  1690
            Bmask = fmt->Bmask;
slouken@2753
  1691
            Amask = fmt->Amask;
lestat@3178
  1692
slouken@3186
  1693
            format =
slouken@3186
  1694
                SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
lestat@3178
  1695
            if (!format) {
lestat@3178
  1696
                SDL_SetError("Unknown pixel format");
lestat@3178
  1697
                return 0;
lestat@3178
  1698
            }
lestat@3178
  1699
lestat@3178
  1700
            /* Search requested format in the supported texture */
lestat@3178
  1701
            /* formats by current renderer                      */
slouken@3186
  1702
            for (it = 0; it < renderer->info.num_texture_formats; it++) {
slouken@3186
  1703
                if (renderer->info.texture_formats[it] == format) {
slouken@3186
  1704
                    break;
lestat@3178
  1705
                }
lestat@3178
  1706
            }
lestat@3178
  1707
lestat@3178
  1708
            /* If requested format can't be found, search any best */
lestat@3178
  1709
            /* format which renderer provides                      */
slouken@3186
  1710
            if (it == renderer->info.num_texture_formats) {
slouken@3186
  1711
                pfmt = 0;
slouken@3186
  1712
                for (;;) {
slouken@3186
  1713
                    if (sdl_pformats[pfmt] == SDL_PIXELFORMAT_UNKNOWN) {
lestat@3178
  1714
                        break;
lestat@3178
  1715
                    }
lestat@3178
  1716
slouken@3186
  1717
                    for (it = 0; it < renderer->info.num_texture_formats;
slouken@3186
  1718
                         it++) {
slouken@3186
  1719
                        if (renderer->info.texture_formats[it] ==
slouken@3186
  1720
                            sdl_pformats[pfmt]) {
slouken@3186
  1721
                            break;
slouken@3186
  1722
                        }
lestat@3178
  1723
                    }
lestat@3178
  1724
slouken@3186
  1725
                    if (it != renderer->info.num_texture_formats) {
slouken@3186
  1726
                        /* The best format has been found */
slouken@3186
  1727
                        break;
lestat@3178
  1728
                    }
lestat@3178
  1729
                    pfmt++;
lestat@3178
  1730
                }
lestat@3178
  1731
lestat@3178
  1732
                /* If any format can't be found, then return an error */
slouken@3186
  1733
                if (it == renderer->info.num_texture_formats) {
slouken@3186
  1734
                    SDL_SetError
slouken@3186
  1735
                        ("Any of the supported pixel formats can't be found");
lestat@3178
  1736
                    return 0;
lestat@3178
  1737
                }
lestat@3178
  1738
lestat@3178
  1739
                /* Convert found pixel format back to color masks */
slouken@3186
  1740
                if (SDL_PixelFormatEnumToMasks
slouken@3186
  1741
                    (renderer->info.texture_formats[it], &bpp, &Rmask, &Gmask,
slouken@3186
  1742
                     &Bmask, &Amask) != SDL_TRUE) {
lestat@3178
  1743
                    SDL_SetError("Unknown pixel format");
lestat@3178
  1744
                    return 0;
lestat@3178
  1745
                }
lestat@3178
  1746
            }
slouken@2753
  1747
        } else {
slouken@2753
  1748
            /* Need a format with alpha */
slouken@3196
  1749
            Uint32 it;
lestat@3166
  1750
            int apfmt;
lestat@3166
  1751
lestat@3166
  1752
            /* Pixel formats with alpha, sorted by best first */
slouken@3169
  1753
            static const Uint32 sdl_alpha_pformats[] = {
slouken@3169
  1754
                SDL_PIXELFORMAT_ARGB8888,
slouken@3169
  1755
                SDL_PIXELFORMAT_RGBA8888,
slouken@3169
  1756
                SDL_PIXELFORMAT_ABGR8888,
slouken@3169
  1757
                SDL_PIXELFORMAT_BGRA8888,
slouken@3169
  1758
                SDL_PIXELFORMAT_ARGB1555,
slouken@3169
  1759
                SDL_PIXELFORMAT_ABGR1555,
slouken@3169
  1760
                SDL_PIXELFORMAT_ARGB4444,
slouken@3169
  1761
                SDL_PIXELFORMAT_ABGR4444,
slouken@3169
  1762
                SDL_PIXELFORMAT_ARGB2101010,
slouken@3169
  1763
                SDL_PIXELFORMAT_UNKNOWN
slouken@3169
  1764
            };
lestat@3166
  1765
lestat@3178
  1766
            if (surface->format->Amask) {
lestat@3178
  1767
                /* If surface already has alpha, then try an original */
lestat@3178
  1768
                /* surface format first                               */
lestat@3178
  1769
                bpp = fmt->BitsPerPixel;
lestat@3178
  1770
                Rmask = fmt->Rmask;
lestat@3178
  1771
                Gmask = fmt->Gmask;
lestat@3178
  1772
                Bmask = fmt->Bmask;
lestat@3178
  1773
                Amask = fmt->Amask;
lestat@3178
  1774
            } else {
lestat@3178
  1775
                bpp = 32;
lestat@3178
  1776
                Rmask = 0x00FF0000;
lestat@3178
  1777
                Gmask = 0x0000FF00;
lestat@3178
  1778
                Bmask = 0x000000FF;
lestat@3178
  1779
                Amask = 0xFF000000;
lestat@3178
  1780
            }
lestat@3166
  1781
slouken@3169
  1782
            format =
slouken@3169
  1783
                SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
lestat@3166
  1784
            if (!format) {
lestat@3166
  1785
                SDL_SetError("Unknown pixel format");
lestat@3166
  1786
                return 0;
lestat@3166
  1787
            }
lestat@3166
  1788
lestat@3166
  1789
            /* Search this format in the supported texture formats */
lestat@3166
  1790
            /* by current renderer                                 */
slouken@3169
  1791
            for (it = 0; it < renderer->info.num_texture_formats; it++) {
slouken@3169
  1792
                if (renderer->info.texture_formats[it] == format) {
slouken@3169
  1793
                    break;
lestat@3166
  1794
                }
lestat@3166
  1795
            }
lestat@3166
  1796
lestat@3166
  1797
            /* If this format can't be found, search any best       */
lestat@3166
  1798
            /* compatible format with alpha which renderer provides */
slouken@3169
  1799
            if (it == renderer->info.num_texture_formats) {
slouken@3169
  1800
                apfmt = 0;
slouken@3169
  1801
                for (;;) {
slouken@3169
  1802
                    if (sdl_alpha_pformats[apfmt] == SDL_PIXELFORMAT_UNKNOWN) {
lestat@3166
  1803
                        break;
lestat@3166
  1804
                    }
lestat@3166
  1805
slouken@3169
  1806
                    for (it = 0; it < renderer->info.num_texture_formats;
slouken@3169
  1807
                         it++) {
slouken@3169
  1808
                        if (renderer->info.texture_formats[it] ==
slouken@3169
  1809
                            sdl_alpha_pformats[apfmt]) {
slouken@3169
  1810
                            break;
slouken@3169
  1811
                        }
lestat@3166
  1812
                    }
lestat@3166
  1813
slouken@3169
  1814
                    if (it != renderer->info.num_texture_formats) {
slouken@3169
  1815
                        /* Compatible format has been found */
slouken@3169
  1816
                        break;
lestat@3166
  1817
                    }
lestat@3166
  1818
                    apfmt++;
lestat@3166
  1819
                }
lestat@3166
  1820
lestat@3166
  1821
                /* If compatible format can't be found, then return an error */
slouken@3169
  1822
                if (it == renderer->info.num_texture_formats) {
lestat@3166
  1823
                    SDL_SetError("Compatible pixel format can't be found");
lestat@3166
  1824
                    return 0;
lestat@3166
  1825
                }
lestat@3166
  1826
lestat@3166
  1827
                /* Convert found pixel format back to color masks */
slouken@3169
  1828
                if (SDL_PixelFormatEnumToMasks
slouken@3169
  1829
                    (renderer->info.texture_formats[it], &bpp, &Rmask, &Gmask,
slouken@3169
  1830
                     &Bmask, &Amask) != SDL_TRUE) {
lestat@3166
  1831
                    SDL_SetError("Unknown pixel format");
lestat@3166
  1832
                    return 0;
lestat@3166
  1833
                }
lestat@3166
  1834
            }
slouken@2753
  1835
        }
lestat@3166
  1836
slouken@2753
  1837
        format = SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
slouken@2753
  1838
        if (!format) {
slouken@2753
  1839
            SDL_SetError("Unknown pixel format");
slouken@2753
  1840
            return 0;
slouken@2753
  1841
        }
slouken@2753
  1842
    }
slouken@1895
  1843
slouken@2753
  1844
    textureID =
slouken@2753
  1845
        SDL_CreateTexture(format, SDL_TEXTUREACCESS_STATIC, surface->w,
slouken@2753
  1846
                          surface->h);
slouken@3057
  1847
    if (!textureID && !requested_format) {
slouken@3057
  1848
        SDL_DisplayMode desktop_mode;
slouken@3057
  1849
        SDL_GetDesktopDisplayMode(&desktop_mode);
slouken@3057
  1850
        format = desktop_mode.format;
slouken@3057
  1851
        textureID =
slouken@3057
  1852
            SDL_CreateTexture(format, SDL_TEXTUREACCESS_STATIC, surface->w,
slouken@3057
  1853
                              surface->h);
slouken@3057
  1854
    }
slouken@2753
  1855
    if (!textureID) {
slouken@2753
  1856
        return 0;
slouken@2753
  1857
    }
slouken@2753
  1858
    if (bpp == fmt->BitsPerPixel && Rmask == fmt->Rmask && Gmask == fmt->Gmask
slouken@2753
  1859
        && Bmask == fmt->Bmask && Amask == fmt->Amask) {
slouken@2753
  1860
        if (SDL_MUSTLOCK(surface)) {
slouken@3315
  1861
            SDL_LockSurface(surface);
slouken@2753
  1862
            SDL_UpdateTexture(textureID, NULL, surface->pixels,
slouken@2753
  1863
                              surface->pitch);
slouken@2753
  1864
            SDL_UnlockSurface(surface);
slouken@2753
  1865
        } else {
slouken@2753
  1866
            SDL_UpdateTexture(textureID, NULL, surface->pixels,
slouken@2753
  1867
                              surface->pitch);
slouken@2753
  1868
        }
slouken@2753
  1869
    } else {
slouken@2967
  1870
        SDL_PixelFormat dst_fmt;
slouken@2753
  1871
        SDL_Surface *dst = NULL;
slouken@1895
  1872
slouken@2753
  1873
        /* Set up a destination surface for the texture update */
slouken@2967
  1874
        SDL_InitFormat(&dst_fmt, bpp, Rmask, Gmask, Bmask, Amask);
slouken@2967
  1875
        if (SDL_ISPIXELFORMAT_INDEXED(format)) {
slouken@2967
  1876
            dst_fmt.palette =
slouken@2967
  1877
                SDL_AllocPalette((1 << SDL_BITSPERPIXEL(format)));
slouken@2967
  1878
            if (dst_fmt.palette) {
slouken@2967
  1879
                /*
slouken@2967
  1880
                 * FIXME: Should we try to copy
slouken@2967
  1881
                 * fmt->palette?
slouken@2967
  1882
                 */
slouken@2967
  1883
                SDL_DitherColors(dst_fmt.palette->colors,
slouken@2967
  1884
                                 SDL_BITSPERPIXEL(format));
slouken@2753
  1885
            }
slouken@2967
  1886
        }
slouken@2967
  1887
        dst = SDL_ConvertSurface(surface, &dst_fmt, 0);
slouken@2967
  1888
        if (dst) {
slouken@2967
  1889
            SDL_UpdateTexture(textureID, NULL, dst->pixels, dst->pitch);
slouken@2967
  1890
            SDL_FreeSurface(dst);
slouken@2967
  1891
        }
slouken@2967
  1892
        if (dst_fmt.palette) {
slouken@2967
  1893
            SDL_FreePalette(dst_fmt.palette);
slouken@2753
  1894
        }
slouken@2753
  1895
        if (!dst) {
slouken@2753
  1896
            SDL_DestroyTexture(textureID);
slouken@2753
  1897
            return 0;
slouken@2753
  1898
        }
slouken@2753
  1899
    }
slouken@2222
  1900
slouken@3053
  1901
    {
slouken@3053
  1902
        Uint8 r, g, b, a;
slouken@3053
  1903
        int blendMode;
slouken@3053
  1904
        int scaleMode;
slouken@3053
  1905
slouken@3053
  1906
        SDL_GetSurfaceColorMod(surface, &r, &g, &b);
slouken@3053
  1907
        SDL_SetTextureColorMod(textureID, r, g, b);
slouken@3053
  1908
slouken@3053
  1909
        SDL_GetSurfaceAlphaMod(surface, &a);
slouken@3053
  1910
        SDL_SetTextureAlphaMod(textureID, a);
slouken@3053
  1911
slouken@3053
  1912
        SDL_GetSurfaceBlendMode(surface, &blendMode);
slouken@3053
  1913
        SDL_SetTextureBlendMode(textureID, blendMode);
slouken@3053
  1914
slouken@3053
  1915
        SDL_GetSurfaceScaleMode(surface, &scaleMode);
slouken@3053
  1916
        SDL_SetTextureScaleMode(textureID, scaleMode);
slouken@3053
  1917
    }
slouken@3053
  1918
slouken@2753
  1919
    if (SDL_ISPIXELFORMAT_INDEXED(format) && fmt->palette) {
slouken@2753
  1920
        SDL_SetTexturePalette(textureID, fmt->palette->colors, 0,
slouken@2753
  1921
                              fmt->palette->ncolors);
slouken@2753
  1922
    }
slouken@2753
  1923
    return textureID;
slouken@1895
  1924
}
slouken@1895
  1925
slouken@1895
  1926
static __inline__ SDL_Texture *
slouken@1895
  1927
SDL_GetTextureFromID(SDL_TextureID textureID)
slouken@1895
  1928
{
slouken@2753
  1929
    int hash;
slouken@2753
  1930
    SDL_Texture *texture;
slouken@1895
  1931
slouken@2753
  1932
    if (!_this) {
slouken@2753
  1933
        return NULL;
slouken@2753
  1934
    }
slouken@2753
  1935
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  1936
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@2753
  1937
         texture = texture->next) {
slouken@2753
  1938
        if (texture->id == textureID) {
slouken@2753
  1939
            return texture;
slouken@2753
  1940
        }
slouken@2753
  1941
    }
slouken@2753
  1942
    return NULL;
slouken@1895
  1943
}
slouken@1895
  1944
slouken@1895
  1945
int
slouken@1895
  1946
SDL_QueryTexture(SDL_TextureID textureID, Uint32 * format, int *access,
slouken@2753
  1947
                 int *w, int *h)
slouken@1895
  1948
{
slouken@2753
  1949
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1950
slouken@2753
  1951
    if (!texture) {
slouken@2753
  1952
        return -1;
slouken@2753
  1953
    }
slouken@2753
  1954
    if (format) {
slouken@2753
  1955
        *format = texture->format;
slouken@2753
  1956
    }
slouken@2753
  1957
    if (access) {
slouken@2753
  1958
        *access = texture->access;
slouken@2753
  1959
    }
slouken@2753
  1960
    if (w) {
slouken@2753
  1961
        *w = texture->w;
slouken@2753
  1962
    }
slouken@2753
  1963
    if (h) {
slouken@2753
  1964
        *h = texture->h;
slouken@2753
  1965
    }
slouken@2753
  1966
    return 0;
slouken@1895
  1967
}
slouken@1895
  1968
slouken@1895
  1969
int
slouken@1895
  1970
SDL_QueryTexturePixels(SDL_TextureID textureID, void **pixels, int *pitch)
slouken@1895
  1971
{
slouken@2753
  1972
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1973
    SDL_Renderer *renderer;
slouken@1895
  1974
slouken@2753
  1975
    if (!texture) {
slouken@2753
  1976
        return -1;
slouken@2753
  1977
    }
slouken@2753
  1978
    renderer = texture->renderer;
slouken@2753
  1979
    if (!renderer->QueryTexturePixels) {
slouken@2810
  1980
        SDL_Unsupported();
slouken@2753
  1981
        return -1;
slouken@2753
  1982
    }
slouken@2753
  1983
    return renderer->QueryTexturePixels(renderer, texture, pixels, pitch);
slouken@1895
  1984
}
slouken@1895
  1985
slouken@1895
  1986
int
slouken@1895
  1987
SDL_SetTexturePalette(SDL_TextureID textureID, const SDL_Color * colors,
slouken@2753
  1988
                      int firstcolor, int ncolors)
slouken@1895
  1989
{
slouken@2753
  1990
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1991
    SDL_Renderer *renderer;
slouken@1895
  1992
slouken@2753
  1993
    if (!texture) {
slouken@2753
  1994
        return -1;
slouken@2753
  1995
    }
slouken@2753
  1996
    renderer = texture->renderer;
slouken@2753
  1997
    if (!renderer->SetTexturePalette) {
slouken@2810
  1998
        SDL_Unsupported();
slouken@2753
  1999
        return -1;
slouken@2753
  2000
    }
slouken@2753
  2001
    return renderer->SetTexturePalette(renderer, texture, colors, firstcolor,
slouken@2753
  2002
                                       ncolors);
slouken@1895
  2003
}
slouken@1895
  2004
slouken@1895
  2005
int
slouken@1895
  2006
SDL_GetTexturePalette(SDL_TextureID textureID, SDL_Color * colors,
slouken@2753
  2007
                      int firstcolor, int ncolors)
slouken@1895
  2008
{
slouken@2753
  2009
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2010
    SDL_Renderer *renderer;
slouken@1895
  2011
slouken@2753
  2012
    if (!texture) {
slouken@2753
  2013
        return -1;
slouken@2753
  2014
    }
slouken@2753
  2015
    renderer = texture->renderer;
slouken@2753
  2016
    if (!renderer->GetTexturePalette) {
slouken@2810
  2017
        SDL_Unsupported();
slouken@2753
  2018
        return -1;
slouken@2753
  2019
    }
slouken@2753
  2020
    return renderer->GetTexturePalette(renderer, texture, colors, firstcolor,
slouken@2753
  2021
                                       ncolors);
slouken@1895
  2022
}
slouken@1895
  2023
slouken@1895
  2024
int
slouken@1985
  2025
SDL_SetTextureColorMod(SDL_TextureID textureID, Uint8 r, Uint8 g, Uint8 b)
slouken@1985
  2026
{
slouken@2753
  2027
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2028
    SDL_Renderer *renderer;
slouken@1985
  2029
slouken@2753
  2030
    if (!texture) {
slouken@2753
  2031
        return -1;
slouken@2753
  2032
    }
slouken@2753
  2033
    renderer = texture->renderer;
slouken@2753
  2034
    if (!renderer->SetTextureColorMod) {
slouken@2810
  2035
        SDL_Unsupported();
slouken@2753
  2036
        return -1;
slouken@2753
  2037
    }
slouken@2753
  2038
    if (r < 255 || g < 255 || b < 255) {
slouken@2753
  2039
        texture->modMode |= SDL_TEXTUREMODULATE_COLOR;
slouken@2753
  2040
    } else {
slouken@2753
  2041
        texture->modMode &= ~SDL_TEXTUREMODULATE_COLOR;
slouken@2753
  2042
    }
slouken@2753
  2043
    texture->r = r;
slouken@2753
  2044
    texture->g = g;
slouken@2753
  2045
    texture->b = b;
slouken@2753
  2046
    return renderer->SetTextureColorMod(renderer, texture);
slouken@1985
  2047
}
slouken@1985
  2048
slouken@1985
  2049
int
slouken@1985
  2050
SDL_GetTextureColorMod(SDL_TextureID textureID, Uint8 * r, Uint8 * g,
slouken@2753
  2051
                       Uint8 * b)
slouken@1985
  2052
{
slouken@2753
  2053
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2054
    SDL_Renderer *renderer;
slouken@1985
  2055
slouken@2753
  2056
    if (!texture) {
slouken@2753
  2057
        return -1;
slouken@2753
  2058
    }
slouken@2753
  2059
    renderer = texture->renderer;
slouken@2753
  2060
    if (r) {
slouken@2753
  2061
        *r = texture->r;
slouken@2753
  2062
    }
slouken@2753
  2063
    if (g) {
slouken@2753
  2064
        *g = texture->g;
slouken@2753
  2065
    }
slouken@2753
  2066
    if (b) {
slouken@2753
  2067
        *b = texture->b;
slouken@2753
  2068
    }
slouken@2753
  2069
    return 0;
slouken@1985
  2070
}
slouken@1985
  2071
slouken@1985
  2072
int
slouken@1985
  2073
SDL_SetTextureAlphaMod(SDL_TextureID textureID, Uint8 alpha)
slouken@1985
  2074
{
slouken@2753
  2075
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2076
    SDL_Renderer *renderer;
slouken@1985
  2077
slouken@2753
  2078
    if (!texture) {
slouken@2753
  2079
        return -1;
slouken@2753
  2080
    }
slouken@2753
  2081
    renderer = texture->renderer;
slouken@2753
  2082
    if (!renderer->SetTextureAlphaMod) {
slouken@2810
  2083
        SDL_Unsupported();
slouken@2753
  2084
        return -1;
slouken@2753
  2085
    }
slouken@2753
  2086
    if (alpha < 255) {
slouken@2753
  2087
        texture->modMode |= SDL_TEXTUREMODULATE_ALPHA;
slouken@2753
  2088
    } else {
slouken@2753
  2089
        texture->modMode &= ~SDL_TEXTUREMODULATE_ALPHA;
slouken@2753
  2090
    }
slouken@2753
  2091
    texture->a = alpha;
slouken@2753
  2092
    return renderer->SetTextureAlphaMod(renderer, texture);
slouken@1985
  2093
}
slouken@1985
  2094
slouken@1985
  2095
int
slouken@1985
  2096
SDL_GetTextureAlphaMod(SDL_TextureID textureID, Uint8 * alpha)
slouken@1985
  2097
{
slouken@2753
  2098
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  2099
slouken@2753
  2100
    if (!texture) {
slouken@2753
  2101
        return -1;
slouken@2753
  2102
    }
slouken@2753
  2103
    if (alpha) {
slouken@2753
  2104
        *alpha = texture->a;
slouken@2753
  2105
    }
slouken@2753
  2106
    return 0;
slouken@1985
  2107
}
slouken@1985
  2108
slouken@1985
  2109
int
slouken@1985
  2110
SDL_SetTextureBlendMode(SDL_TextureID textureID, int blendMode)
slouken@1985
  2111
{
slouken@2753
  2112
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2113
    SDL_Renderer *renderer;
slouken@1985
  2114
slouken@2753
  2115
    if (!texture) {
slouken@2753
  2116
        return -1;
slouken@2753
  2117
    }
slouken@2753
  2118
    renderer = texture->renderer;
slouken@2753
  2119
    if (!renderer->SetTextureBlendMode) {
slouken@2810
  2120
        SDL_Unsupported();
slouken@2753
  2121
        return -1;
slouken@2753
  2122
    }
slouken@2753
  2123
    texture->blendMode = blendMode;
slouken@2753
  2124
    return renderer->SetTextureBlendMode(renderer, texture);
slouken@1985
  2125
}
slouken@1985
  2126
slouken@1985
  2127
int
slouken@1985
  2128
SDL_GetTextureBlendMode(SDL_TextureID textureID, int *blendMode)
slouken@1985
  2129
{
slouken@2753
  2130
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  2131
slouken@2753
  2132
    if (!texture) {
slouken@2753
  2133
        return -1;
slouken@2753
  2134
    }
slouken@2753
  2135
    if (blendMode) {
slouken@2753
  2136
        *blendMode = texture->blendMode;
slouken@2753
  2137
    }
slouken@2753
  2138
    return 0;
slouken@1985
  2139
}
slouken@1985
  2140
slouken@1985
  2141
int
slouken@1985
  2142
SDL_SetTextureScaleMode(SDL_TextureID textureID, int scaleMode)
slouken@1985
  2143
{
slouken@2753
  2144
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2145
    SDL_Renderer *renderer;
slouken@1985
  2146
slouken@2753
  2147
    if (!texture) {
slouken@2753
  2148
        return -1;
slouken@2753
  2149
    }
slouken@2753
  2150
    renderer = texture->renderer;
slouken@2753
  2151
    if (!renderer->SetTextureScaleMode) {
slouken@2810
  2152
        SDL_Unsupported();
slouken@2753
  2153
        return -1;
slouken@2753
  2154
    }
slouken@2753
  2155
    texture->scaleMode = scaleMode;
slouken@2753
  2156
    return renderer->SetTextureScaleMode(renderer, texture);
slouken@1985
  2157
}
slouken@1985
  2158
slouken@1985
  2159
int
slouken@1985
  2160
SDL_GetTextureScaleMode(SDL_TextureID textureID, int *scaleMode)
slouken@1985
  2161
{
slouken@2753
  2162
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  2163
slouken@2753
  2164
    if (!texture) {
slouken@2753
  2165
        return -1;
slouken@2753
  2166
    }
slouken@2753
  2167
    if (scaleMode) {
slouken@2753
  2168
        *scaleMode = texture->scaleMode;
slouken@2753
  2169
    }
slouken@2753
  2170
    return 0;
slouken@1985
  2171
}
slouken@1985
  2172
slouken@1985
  2173
int
slouken@1895
  2174
SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect * rect,
slouken@2753
  2175
                  const void *pixels, int pitch)
slouken@1895
  2176
{
slouken@2753
  2177
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2178
    SDL_Renderer *renderer;
slouken@2753
  2179
    SDL_Rect full_rect;
slouken@1895
  2180
slouken@2753
  2181
    if (!texture) {
slouken@2753
  2182
        return -1;
slouken@2753
  2183
    }
slouken@2753
  2184
    renderer = texture->renderer;
slouken@2753
  2185
    if (!renderer->UpdateTexture) {
slouken@2810
  2186
        SDL_Unsupported();
slouken@2753
  2187
        return -1;
slouken@2753
  2188
    }
slouken@2753
  2189
    if (!rect) {
slouken@2753
  2190
        full_rect.x = 0;
slouken@2753
  2191
        full_rect.y = 0;
slouken@2753
  2192
        full_rect.w = texture->w;
slouken@2753
  2193
        full_rect.h = texture->h;
slouken@2753
  2194
        rect = &full_rect;
slouken@2753
  2195
    }
slouken@2753
  2196
    return renderer->UpdateTexture(renderer, texture, rect, pixels, pitch);
slouken@1895
  2197
}
slouken@1895
  2198
slouken@1895
  2199
int
slouken@1895
  2200
SDL_LockTexture(SDL_TextureID textureID, const SDL_Rect * rect, int markDirty,
slouken@2753
  2201
                void **pixels, int *pitch)
slouken@1895
  2202
{
slouken@2753
  2203
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2204
    SDL_Renderer *renderer;
slouken@2753
  2205
    SDL_Rect full_rect;
slouken@1895
  2206
slouken@2753
  2207
    if (!texture) {
slouken@2753
  2208
        return -1;
slouken@2753
  2209
    }
slouken@2753
  2210
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  2211
        SDL_SetError("SDL_LockTexture(): texture must be streaming");
slouken@2753
  2212
        return -1;
slouken@2753
  2213
    }
slouken@2753
  2214
    renderer = texture->renderer;
slouken@2753
  2215
    if (!renderer->LockTexture) {
slouken@2810
  2216
        SDL_Unsupported();
slouken@2753
  2217
        return -1;
slouken@2753
  2218
    }
slouken@2753
  2219
    if (!rect) {
slouken@2753
  2220
        full_rect.x = 0;
slouken@2753
  2221
        full_rect.y = 0;
slouken@2753
  2222
        full_rect.w = texture->w;
slouken@2753
  2223
        full_rect.h = texture->h;
slouken@2753
  2224
        rect = &full_rect;
slouken@2753
  2225
    }
slouken@2753
  2226
    return renderer->LockTexture(renderer, texture, rect, markDirty, pixels,
slouken@2753
  2227
                                 pitch);
slouken@1895
  2228
}
slouken@1895
  2229
slouken@1895
  2230
void
slouken@1895
  2231
SDL_UnlockTexture(SDL_TextureID textureID)
slouken@1895
  2232
{
slouken@2753
  2233
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2234
    SDL_Renderer *renderer;
slouken@1895
  2235
slouken@2753
  2236
    if (!texture) {
slouken@2753
  2237
        return;
slouken@2753
  2238
    }
slouken@2753
  2239
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  2240
        return;
slouken@2753
  2241
    }
slouken@2753
  2242
    renderer = texture->renderer;
slouken@2753
  2243
    if (!renderer->UnlockTexture) {
slouken@2753
  2244
        return;
slouken@2753
  2245
    }
slouken@2753
  2246
    renderer->UnlockTexture(renderer, texture);
slouken@1895
  2247
}
slouken@1895
  2248
slouken@1895
  2249
void
slouken@1895
  2250
SDL_DirtyTexture(SDL_TextureID textureID, int numrects,
slouken@2753
  2251
                 const SDL_Rect * rects)
slouken@1895
  2252
{
slouken@2753
  2253
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2254
    SDL_Renderer *renderer;
slouken@1895
  2255
slouken@2753
  2256
    if (!texture) {
slouken@2753
  2257
        return;
slouken@2753
  2258
    }
slouken@2753
  2259
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  2260
        return;
slouken@2753
  2261
    }
slouken@2753
  2262
    renderer = texture->renderer;
slouken@2753
  2263
    if (!renderer->DirtyTexture) {
slouken@2753
  2264
        return;
slouken@2753
  2265
    }
slouken@2753
  2266
    renderer->DirtyTexture(renderer, texture, numrects, rects);
slouken@1895
  2267
}
slouken@1895
  2268
slouken@1895
  2269
int
slouken@2884
  2270
SDL_SetRenderDrawColor(Uint8 r, Uint8 g, Uint8 b, Uint8 a)
slouken@2884
  2271
{
slouken@2884
  2272
    SDL_Renderer *renderer;
slouken@2884
  2273
slouken@3417
  2274
    renderer = SDL_GetCurrentRenderer();
slouken@2884
  2275
    if (!renderer) {
slouken@2884
  2276
        return -1;
slouken@2884
  2277
    }
slouken@2884
  2278
    renderer->r = r;
slouken@2884
  2279
    renderer->g = g;
slouken@2884
  2280
    renderer->b = b;
slouken@2884
  2281
    renderer->a = a;
slouken@2927
  2282
    if (renderer->SetDrawColor) {
slouken@2927
  2283
        return renderer->SetDrawColor(renderer);
slouken@2927
  2284
    } else {
slouken@2927
  2285
        return 0;
slouken@2927
  2286
    }
slouken@2884
  2287
}
slouken@2884
  2288
slouken@2884
  2289
int
slouken@2885
  2290
SDL_GetRenderDrawColor(Uint8 * r, Uint8 * g, Uint8 * b, Uint8 * a)
slouken@2884
  2291
{
slouken@2884
  2292
    SDL_Renderer *renderer;
slouken@2884
  2293
slouken@3417
  2294
    renderer = SDL_GetCurrentRenderer();
slouken@2884
  2295
    if (!renderer) {
slouken@2884
  2296
        return -1;
slouken@2884
  2297
    }
slouken@2884
  2298
    if (r) {
slouken@2884
  2299
        *r = renderer->r;
slouken@2884
  2300
    }
slouken@2884
  2301
    if (g) {
slouken@2884
  2302
        *g = renderer->g;
slouken@2884
  2303
    }
slouken@2884
  2304
    if (b) {
slouken@2884
  2305
        *b = renderer->b;
slouken@2884
  2306
    }
slouken@2884
  2307
    if (a) {
slouken@2884
  2308
        *a = renderer->a;
slouken@2884
  2309
    }
slouken@2928
  2310
    return 0;
slouken@2884
  2311
}
slouken@2884
  2312
slouken@2884
  2313
int
slouken@2884
  2314
SDL_SetRenderDrawBlendMode(int blendMode)
slouken@2884
  2315
{
slouken@2884
  2316
    SDL_Renderer *renderer;
slouken@2884
  2317
slouken@3417
  2318
    renderer = SDL_GetCurrentRenderer();
slouken@2884
  2319
    if (!renderer) {
slouken@2884
  2320
        return -1;
slouken@2884
  2321
    }
slouken@2927
  2322
    renderer->blendMode = blendMode;
slouken@2927
  2323
    if (renderer->SetDrawBlendMode) {
slouken@2927
  2324
        return renderer->SetDrawBlendMode(renderer);
slouken@2927
  2325
    } else {
slouken@2927
  2326
        return 0;
slouken@2884
  2327
    }
slouken@2884
  2328
}
slouken@2884
  2329
slouken@2884
  2330
int
slouken@2884
  2331
SDL_GetRenderDrawBlendMode(int *blendMode)
slouken@2884
  2332
{
slouken@2884
  2333
    SDL_Renderer *renderer;
slouken@2884
  2334
slouken@3417
  2335
    renderer = SDL_GetCurrentRenderer();
slouken@2884
  2336
    if (!renderer) {
slouken@2884
  2337
        return -1;
slouken@2884
  2338
    }
slouken@2884
  2339
    *blendMode = renderer->blendMode;
slouken@2884
  2340
    return 0;
slouken@2884
  2341
}
slouken@2884
  2342
slouken@2901
  2343
int
slouken@2901
  2344
SDL_RenderPoint(int x, int y)
slouken@2901
  2345
{
slouken@2901
  2346
    SDL_Renderer *renderer;
slouken@2901
  2347
    SDL_Window *window;
slouken@2901
  2348
slouken@3417
  2349
    renderer = SDL_GetCurrentRenderer();
slouken@2901
  2350
    if (!renderer) {
slouken@2901
  2351
        return -1;
slouken@2901
  2352
    }
slouken@2901
  2353
    if (!renderer->RenderPoint) {
slouken@2901
  2354
        SDL_Unsupported();
slouken@2901
  2355
        return -1;
slouken@2901
  2356
    }
slouken@2901
  2357
    window = SDL_GetWindowFromID(renderer->window);
slouken@2901
  2358
    if (x < 0 || y < 0 || x >= window->w || y >= window->h) {
slouken@2901
  2359
        return 0;
slouken@2901
  2360
    }
slouken@2901
  2361
    return renderer->RenderPoint(renderer, x, y);
slouken@2901
  2362
}
slouken@2901
  2363
slouken@2901
  2364
int
slouken@2901
  2365
SDL_RenderLine(int x1, int y1, int x2, int y2)
slouken@2901
  2366
{
slouken@2901
  2367
    SDL_Renderer *renderer;
slouken@2901
  2368
    SDL_Window *window;
slouken@2901
  2369
    SDL_Rect real_rect;
slouken@2901
  2370
slouken@2901
  2371
    if (x1 == x2 && y1 == y2) {
slouken@2901
  2372
        return SDL_RenderPoint(x1, y1);
slouken@2901
  2373
    }
slouken@2901
  2374
slouken@3417
  2375
    renderer = SDL_GetCurrentRenderer();
slouken@2901
  2376
    if (!renderer) {
slouken@2901
  2377
        return -1;
slouken@2901
  2378
    }
slouken@2901
  2379
    if (!renderer->RenderLine) {
slouken@2901
  2380
        SDL_Unsupported();
slouken@2901
  2381
        return -1;
slouken@2901
  2382
    }
slouken@2901
  2383
    window = SDL_GetWindowFromID(renderer->window);
slouken@2909
  2384
slouken@2901
  2385
    real_rect.x = 0;
slouken@2901
  2386
    real_rect.y = 0;
slouken@2901
  2387
    real_rect.w = window->w;
slouken@2901
  2388
    real_rect.h = window->h;
slouken@2910
  2389
    if (!SDL_IntersectRectAndLine(&real_rect, &x1, &y1, &x2, &y2)) {
slouken@2909
  2390
        return (0);
slouken@2901
  2391
    }
slouken@2901
  2392
    return renderer->RenderLine(renderer, x1, y1, x2, y2);
slouken@2901
  2393
}
slouken@2884
  2394
slouken@2884
  2395
int
slouken@2884
  2396
SDL_RenderFill(const SDL_Rect * rect)
slouken@1895
  2397
{
slouken@2753
  2398
    SDL_Renderer *renderer;
slouken@2753
  2399
    SDL_Window *window;
slouken@2753
  2400
    SDL_Rect real_rect;
slouken@1895
  2401
slouken@3417
  2402
    renderer = SDL_GetCurrentRenderer();
slouken@2810
  2403
    if (!renderer) {
slouken@2810
  2404
        return -1;
slouken@2810
  2405
    }
slouken@2814
  2406
    if (!renderer->RenderFill) {
slouken@2810
  2407
        SDL_Unsupported();
slouken@2753
  2408
        return -1;
slouken@2753
  2409
    }
slouken@2753
  2410
    window = SDL_GetWindowFromID(renderer->window);
slouken@2908
  2411
slouken@2753
  2412
    real_rect.x = 0;
slouken@2753
  2413
    real_rect.y = 0;
slouken@2753
  2414
    real_rect.w = window->w;
slouken@2753
  2415
    real_rect.h = window->h;
slouken@2753
  2416
    if (rect) {
slouken@2753
  2417
        if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
slouken@2753
  2418
            return 0;
slouken@2753
  2419
        }
slouken@2753
  2420
    }
slouken@2884
  2421
    return renderer->RenderFill(renderer, &real_rect);
slouken@2884
  2422
}
slouken@2884
  2423
slouken@2884
  2424
int
slouken@1895
  2425
SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect * srcrect,
slouken@2753
  2426
               const SDL_Rect * dstrect)
slouken@1895
  2427
{
slouken@2753
  2428
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2429
    SDL_Renderer *renderer;
slouken@2753
  2430
    SDL_Window *window;
slouken@2753
  2431
    SDL_Rect real_srcrect;
slouken@2753
  2432
    SDL_Rect real_dstrect;
slouken@1895
  2433
slouken@3417
  2434
    renderer = SDL_GetCurrentRenderer();
slouken@3316
  2435
    if (!renderer) {
slouken@2753
  2436
        return -1;
slouken@2753
  2437
    }
slouken@3316
  2438
    if (!texture) {
slouken@3316
  2439
        SDL_SetError("Texture not found");
slouken@3316
  2440
        return -1;
slouken@3316
  2441
    }
slouken@3316
  2442
    if (texture->renderer != renderer) {
slouken@3316
  2443
        SDL_SetError("Texture was not created with this renderer");
slouken@2810
  2444
        return -1;
slouken@2810
  2445
    }
slouken@2810
  2446
    if (!renderer->RenderCopy) {
slouken@2810
  2447
        SDL_Unsupported();
slouken@2753
  2448
        return -1;
slouken@2753
  2449
    }
slouken@2753
  2450
    window = SDL_GetWindowFromID(renderer->window);
slouken@2908
  2451
slouken@2908
  2452
    real_srcrect.x = 0;
slouken@2908
  2453
    real_srcrect.y = 0;
slouken@2908
  2454
    real_srcrect.w = texture->w;
slouken@2908
  2455
    real_srcrect.h = texture->h;
slouken@2753
  2456
    if (srcrect) {
slouken@2908
  2457
        if (!SDL_IntersectRect(srcrect, &real_srcrect, &real_srcrect)) {
slouken@2908
  2458
            return 0;
slouken@2908
  2459
        }
slouken@2753
  2460
    }
slouken@2908
  2461
slouken@2908
  2462
    real_dstrect.x = 0;
slouken@2908
  2463
    real_dstrect.y = 0;
slouken@2908
  2464
    real_dstrect.w = window->w;
slouken@2908
  2465
    real_dstrect.h = window->h;
slouken@2753
  2466
    if (dstrect) {
slouken@2908
  2467
        if (!SDL_IntersectRect(dstrect, &real_dstrect, &real_dstrect)) {
slouken@2908
  2468
            return 0;
slouken@2908
  2469
        }
slouken@2912
  2470
        /* Clip srcrect by the same amount as dstrect was clipped */
slouken@2912
  2471
        if (dstrect->w != real_dstrect.w) {
slouken@2912
  2472
            int deltax = (real_dstrect.x - dstrect->x);
slouken@2912
  2473
            int deltaw = (real_dstrect.w - dstrect->w);
slouken@3333
  2474
            real_srcrect.x += (deltax * real_srcrect.w) / dstrect->w;
slouken@3333
  2475
            real_srcrect.w += (deltaw * real_srcrect.w) / dstrect->w;
slouken@2912
  2476
        }
slouken@2912
  2477
        if (dstrect->h != real_dstrect.h) {
slouken@2912
  2478
            int deltay = (real_dstrect.y - dstrect->y);
slouken@2912
  2479
            int deltah = (real_dstrect.h - dstrect->h);
slouken@3333
  2480
            real_srcrect.y += (deltay * real_srcrect.h) / dstrect->h;
slouken@3333
  2481
            real_srcrect.h += (deltah * real_srcrect.h) / dstrect->h;
slouken@2912
  2482
        }
slouken@2753
  2483
    }
slouken@1895
  2484
slouken@2753
  2485
    return renderer->RenderCopy(renderer, texture, &real_srcrect,
slouken@2753
  2486
                                &real_dstrect);
slouken@1895
  2487
}
slouken@1895
  2488
slouken@3427
  2489
int
slouken@3427
  2490
SDL_RenderReadPixels(const SDL_Rect * rect, void * pixels, int pitch)
slouken@3427
  2491
{
slouken@3427
  2492
    SDL_Renderer *renderer;
slouken@3427
  2493
    SDL_Window *window;
slouken@3427
  2494
    SDL_Rect real_rect;
slouken@3427
  2495
slouken@3427
  2496
    renderer = SDL_GetCurrentRenderer();
slouken@3427
  2497
    if (!renderer) {
slouken@3427
  2498
        return -1;
slouken@3427
  2499
    }
slouken@3427
  2500
    if (!renderer->RenderReadPixels) {
slouken@3427
  2501
        SDL_Unsupported();
slouken@3427
  2502
        return -1;
slouken@3427
  2503
    }
slouken@3427
  2504
    window = SDL_GetWindowFromID(renderer->window);
slouken@3427
  2505
slouken@3427
  2506
    real_rect.x = 0;
slouken@3427
  2507
    real_rect.y = 0;
slouken@3427
  2508
    real_rect.w = window->w;
slouken@3427
  2509
    real_rect.h = window->h;
slouken@3427
  2510
    if (rect) {
slouken@3427
  2511
        if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
slouken@3427
  2512
            return 0;
slouken@3427
  2513
        }
slouken@3427
  2514
        if (real_rect.y > rect->y) {
slouken@3427
  2515
            pixels = (Uint8 *)pixels + pitch * (real_rect.y - rect->y);
slouken@3427
  2516
        }
slouken@3427
  2517
        if (real_rect.x > rect->x) {
slouken@3427
  2518
            Uint32 format = SDL_CurrentDisplay.current_mode.format;
slouken@3427
  2519
            int bpp = SDL_BYTESPERPIXEL(format);
slouken@3427
  2520
            pixels = (Uint8 *)pixels + bpp * (real_rect.x - rect->x);
slouken@3427
  2521
        }
slouken@3427
  2522
    }
slouken@3427
  2523
slouken@3427
  2524
    return renderer->RenderReadPixels(renderer, &real_rect, pixels, pitch);
slouken@3427
  2525
}
slouken@3427
  2526
slouken@3427
  2527
int
slouken@3427
  2528
SDL_RenderWritePixels(const SDL_Rect * rect, const void * pixels, int pitch)
slouken@3427
  2529
{
slouken@3427
  2530
    SDL_Renderer *renderer;
slouken@3427
  2531
    SDL_Window *window;
slouken@3427
  2532
    SDL_Rect real_rect;
slouken@3427
  2533
slouken@3427
  2534
    renderer = SDL_GetCurrentRenderer();
slouken@3427
  2535
    if (!renderer) {
slouken@3427
  2536
        return -1;
slouken@3427
  2537
    }
slouken@3427
  2538
    if (!renderer->RenderWritePixels) {
slouken@3427
  2539
        SDL_Unsupported();
slouken@3427
  2540
        return -1;
slouken@3427
  2541
    }
slouken@3427
  2542
    window = SDL_GetWindowFromID(renderer->window);
slouken@3427
  2543
slouken@3427
  2544
    real_rect.x = 0;
slouken@3427
  2545
    real_rect.y = 0;
slouken@3427
  2546
    real_rect.w = window->w;
slouken@3427
  2547
    real_rect.h = window->h;
slouken@3427
  2548
    if (rect) {
slouken@3427
  2549
        if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
slouken@3427
  2550
            return 0;
slouken@3427
  2551
        }
slouken@3427
  2552
        if (real_rect.y > rect->y) {
slouken@3427
  2553
            pixels = (const Uint8 *)pixels + pitch * (real_rect.y - rect->y);
slouken@3427
  2554
        }
slouken@3427
  2555
        if (real_rect.x > rect->x) {
slouken@3427
  2556
            Uint32 format = SDL_CurrentDisplay.current_mode.format;
slouken@3427
  2557
            int bpp = SDL_BYTESPERPIXEL(format);
slouken@3427
  2558
            pixels = (const Uint8 *)pixels + bpp * (real_rect.x - rect->x);
slouken@3427
  2559
        }
slouken@3427
  2560
    }
slouken@3427
  2561
slouken@3427
  2562
    return renderer->RenderWritePixels(renderer, &real_rect, pixels, pitch);
slouken@3427
  2563
}
slouken@3427
  2564
slouken@1895
  2565
void
slouken@1895
  2566
SDL_RenderPresent(void)
slouken@1895
  2567
{
slouken@2753
  2568
    SDL_Renderer *renderer;
slouken@1895
  2569
slouken@3417
  2570
    renderer = SDL_GetCurrentRenderer();
slouken@2753
  2571
    if (!renderer || !renderer->RenderPresent) {
slouken@2753
  2572
        return;
slouken@2753
  2573
    }
slouken@2753
  2574
    renderer->RenderPresent(renderer);
slouken@1895
  2575
}
slouken@1895
  2576
slouken@1895
  2577
void
slouken@1895
  2578
SDL_DestroyTexture(SDL_TextureID textureID)
slouken@1895
  2579
{
slouken@2753
  2580
    int hash;
slouken@2753
  2581
    SDL_Texture *prev, *texture;
slouken@2753
  2582
    SDL_Renderer *renderer;
slouken@1895
  2583
slouken@2753
  2584
    if (!_this) {
slouken@2753
  2585
        SDL_UninitializedVideo();
slouken@2753
  2586
        return;
slouken@2753
  2587
    }
slouken@2753
  2588
    /* Look up the texture in the hash table */
slouken@2753
  2589
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  2590
    prev = NULL;
slouken@2753
  2591
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@2753
  2592
         prev = texture, texture = texture->next) {
slouken@2753
  2593
        if (texture->id == textureID) {
slouken@2753
  2594
            break;
slouken@2753
  2595
        }
slouken@2753
  2596
    }
slouken@2753
  2597
    if (!texture) {
slouken@2753
  2598
        return;
slouken@2753
  2599
    }
slouken@2753
  2600
    /* Unlink the texture from the list */
slouken@2753
  2601
    if (prev) {
slouken@2753
  2602
        prev->next = texture->next;
slouken@2753
  2603
    } else {
slouken@2753
  2604
        SDL_CurrentDisplay.textures[hash] = texture->next;
slouken@2753
  2605
    }
slouken@1895
  2606
slouken@2753
  2607
    /* Free the texture */
slouken@2753
  2608
    renderer = texture->renderer;
slouken@2753
  2609
    renderer->DestroyTexture(renderer, texture);
slouken@2753
  2610
    SDL_free(texture);
slouken@1895
  2611
}
slouken@1895
  2612
slouken@1895
  2613
void
slouken@1895
  2614
SDL_DestroyRenderer(SDL_WindowID windowID)
slouken@1895
  2615
{
slouken@2753
  2616
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  2617
    SDL_Renderer *renderer;
slouken@2753
  2618
    int i;
slouken@1895
  2619
slouken@2753
  2620
    if (!window) {
slouken@2753
  2621
        return;
slouken@2753
  2622
    }
slouken@2753
  2623
    renderer = window->renderer;
slouken@2753
  2624
    if (!renderer) {
slouken@2753
  2625
        return;
slouken@2753
  2626
    }
slouken@2753
  2627
    /* Free existing textures for this renderer */
slouken@2753
  2628
    for (i = 0; i < SDL_arraysize(SDL_CurrentDisplay.textures); ++i) {
slouken@2753
  2629
        SDL_Texture *texture;
slouken@2753
  2630
        SDL_Texture *prev = NULL;
slouken@2753
  2631
        SDL_Texture *next;
slouken@2753
  2632
        for (texture = SDL_CurrentDisplay.textures[i]; texture;
slouken@2753
  2633
             texture = next) {
slouken@2753
  2634
            next = texture->next;
slouken@2753
  2635
            if (texture->renderer == renderer) {
slouken@2753
  2636
                if (prev) {
slouken@2753
  2637
                    prev->next = next;
slouken@2753
  2638
                } else {
slouken@2753
  2639
                    SDL_CurrentDisplay.textures[i] = next;
slouken@2753
  2640
                }
slouken@2753
  2641
                renderer->DestroyTexture(renderer, texture);
slouken@2753
  2642
                SDL_free(texture);
slouken@2753
  2643
            } else {
slouken@2753
  2644
                prev = texture;
slouken@2753
  2645
            }
slouken@2753
  2646
        }
slouken@2753
  2647
    }
slouken@1895
  2648
slouken@2753
  2649
    /* Free the renderer instance */
slouken@2753
  2650
    renderer->DestroyRenderer(renderer);
slouken@1895
  2651
slouken@2753
  2652
    /* Clear references */
slouken@2753
  2653
    window->renderer = NULL;
slouken@2753
  2654
    if (SDL_CurrentDisplay.current_renderer == renderer) {
slouken@2753
  2655
        SDL_CurrentDisplay.current_renderer = NULL;
slouken@2753
  2656
    }
slouken@1895
  2657
}
slouken@1895
  2658
slouken@3025
  2659
SDL_bool
slouken@3025
  2660
SDL_IsScreenSaverEnabled()
slouken@3025
  2661
{
slouken@3025
  2662
    if (!_this) {
slouken@3025
  2663
        return SDL_TRUE;
slouken@3025
  2664
    }
slouken@3025
  2665
    return _this->suspend_screensaver ? SDL_FALSE : SDL_TRUE;
slouken@3025
  2666
}
slouken@3025
  2667
slouken@3025
  2668
void
slouken@3025
  2669
SDL_EnableScreenSaver()
slouken@3025
  2670
{
slouken@3025
  2671
    if (!_this) {
slouken@3025
  2672
        return;
slouken@3025
  2673
    }
slouken@3025
  2674
    if (!_this->suspend_screensaver) {
slouken@3025
  2675
        return;
slouken@3025
  2676
    }
slouken@3025
  2677
    _this->suspend_screensaver = SDL_FALSE;
slouken@3025
  2678
    if (_this->SuspendScreenSaver) {
slouken@3025
  2679
        _this->SuspendScreenSaver(_this);
slouken@3025
  2680
    }
slouken@3025
  2681
}
slouken@3025
  2682
slouken@3025
  2683
void
slouken@3025
  2684
SDL_DisableScreenSaver()
slouken@3025
  2685
{
slouken@3025
  2686
    if (!_this) {
slouken@3025
  2687
        return;
slouken@3025
  2688
    }
slouken@3025
  2689
    if (_this->suspend_screensaver) {
slouken@3025
  2690
        return;
slouken@3025
  2691
    }
slouken@3025
  2692
    _this->suspend_screensaver = SDL_TRUE;
slouken@3025
  2693
    if (_this->SuspendScreenSaver) {
slouken@3025
  2694
        _this->SuspendScreenSaver(_this);
slouken@3025
  2695
    }
slouken@3025
  2696
}
slouken@3025
  2697
slouken@1895
  2698
void
slouken@1895
  2699
SDL_VideoQuit(void)
slouken@1895
  2700
{
slouken@2753
  2701
    int i, j;
slouken@1895
  2702
slouken@2753
  2703
    if (!_this) {
slouken@2753
  2704
        return;
slouken@2753
  2705
    }
slouken@2753
  2706
    /* Halt event processing before doing anything else */
slouken@2753
  2707
    SDL_StopEventLoop();
slouken@3029
  2708
    SDL_EnableScreenSaver();
slouken@1895
  2709
slouken@2753
  2710
    /* Clean up the system video */
slouken@2753
  2711
    for (i = _this->num_displays; i--;) {
slouken@2753
  2712
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2713
        for (j = display->num_windows; j--;) {
slouken@2753
  2714
            SDL_DestroyWindow(display->windows[i].id);
slouken@2753
  2715
        }
slouken@2753
  2716
        if (display->windows) {
slouken@2753
  2717
            SDL_free(display->windows);
slouken@2753
  2718
            display->windows = NULL;
slouken@2753
  2719
        }
slouken@2753
  2720
        display->num_windows = 0;
slouken@2753
  2721
        if (display->render_drivers) {
slouken@2753
  2722
            SDL_free(display->render_drivers);
slouken@2753
  2723
            display->render_drivers = NULL;
slouken@2753
  2724
        }
slouken@2753
  2725
        display->num_render_drivers = 0;
slouken@2753
  2726
    }
slouken@2753
  2727
    _this->VideoQuit(_this);
slouken@1895
  2728
slouken@2753
  2729
    for (i = _this->num_displays; i--;) {
slouken@2753
  2730
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2731
        for (j = display->num_display_modes; j--;) {
slouken@2753
  2732
            if (display->display_modes[j].driverdata) {
slouken@2753
  2733
                SDL_free(display->display_modes[j].driverdata);
slouken@2753
  2734
                display->display_modes[j].driverdata = NULL;
slouken@2753
  2735
            }
slouken@2753
  2736
        }
slouken@2753
  2737
        if (display->display_modes) {
slouken@2753
  2738
            SDL_free(display->display_modes);
slouken@2753
  2739
            display->display_modes = NULL;
slouken@2753
  2740
        }
slouken@2753
  2741
        if (display->desktop_mode.driverdata) {
slouken@2753
  2742
            SDL_free(display->desktop_mode.driverdata);
slouken@2753
  2743
            display->desktop_mode.driverdata = NULL;
slouken@2753
  2744
        }
slouken@2753
  2745
        if (display->palette) {
slouken@2753
  2746
            SDL_FreePalette(display->palette);
slouken@2753
  2747
            display->palette = NULL;
slouken@2753
  2748
        }
slouken@2753
  2749
        if (display->gamma) {
slouken@2753
  2750
            SDL_free(display->gamma);
slouken@2753
  2751
            display->gamma = NULL;
slouken@2753
  2752
        }
slouken@2753
  2753
        if (display->driverdata) {
slouken@2753
  2754
            SDL_free(display->driverdata);
slouken@2753
  2755
            display->driverdata = NULL;
slouken@2753
  2756
        }
slouken@2753
  2757
    }
slouken@2753
  2758
    if (_this->displays) {
slouken@2753
  2759
        SDL_free(_this->displays);
slouken@2753
  2760
        _this->displays = NULL;
slouken@2753
  2761
    }
slouken@2753
  2762
    _this->free(_this);
slouken@2753
  2763
    _this = NULL;
slouken@0
  2764
}
slouken@0
  2765
slouken@1895
  2766
int
slouken@1895
  2767
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2768
{
slouken@2753
  2769
    int retval;
slouken@0
  2770
slouken@2753
  2771
    if (!_this) {
slouken@2753
  2772
        SDL_UninitializedVideo();
slouken@2753
  2773
        return -1;
slouken@2753
  2774
    }
slouken@3057
  2775
    if (_this->gl_config.driver_loaded) {
slouken@3057
  2776
        if (path && SDL_strcmp(path, _this->gl_config.driver_path) != 0) {
slouken@3057
  2777
            SDL_SetError("OpenGL library already loaded");
slouken@3057
  2778
            return -1;
slouken@3057
  2779
        }
slouken@3057
  2780
        retval = 0;
slouken@3057
  2781
    } else {
slouken@3057
  2782
        if (!_this->GL_LoadLibrary) {
slouken@3057
  2783
            SDL_SetError("No dynamic GL support in video driver");
slouken@3057
  2784
            return -1;
slouken@3057
  2785
        }
slouken@2753
  2786
        retval = _this->GL_LoadLibrary(_this, path);
slouken@3057
  2787
    }
slouken@3057
  2788
    if (retval == 0) {
slouken@3057
  2789
        ++_this->gl_config.driver_loaded;
slouken@2753
  2790
    }
slouken@2753
  2791
    return (retval);
slouken@0
  2792
}
slouken@0
  2793
slouken@2753
  2794
void *
slouken@1895
  2795
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2796
{
slouken@2753
  2797
    void *func;
slouken@0
  2798
slouken@2753
  2799
    if (!_this) {
slouken@2753
  2800
        SDL_UninitializedVideo();
slouken@2753
  2801
        return NULL;
slouken@2753
  2802
    }
slouken@2753
  2803
    func = NULL;
slouken@2753
  2804
    if (_this->GL_GetProcAddress) {
slouken@2753
  2805
        if (_this->gl_config.driver_loaded) {
slouken@2753
  2806
            func = _this->GL_GetProcAddress(_this, proc);
slouken@2753
  2807
        } else {
slouken@2753
  2808
            SDL_SetError("No GL driver has been loaded");
slouken@2753
  2809
        }
slouken@2753
  2810
    } else {
slouken@2753
  2811
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2812
    }
slouken@2753
  2813
    return func;
slouken@0
  2814
}
slouken@0
  2815
slouken@3057
  2816
void
slouken@3057
  2817
SDL_GL_UnloadLibrary(void)
slouken@3057
  2818
{
slouken@3057
  2819
    if (!_this) {
slouken@3057
  2820
        SDL_UninitializedVideo();
slouken@3057
  2821
        return;
slouken@3057
  2822
    }
slouken@3057
  2823
    if (_this->gl_config.driver_loaded > 0) {
slouken@3057
  2824
        if (--_this->gl_config.driver_loaded > 0) {
slouken@3057
  2825
            return;
slouken@3057
  2826
        }
slouken@3057
  2827
        if (_this->GL_UnloadLibrary) {
slouken@3057
  2828
            _this->GL_UnloadLibrary(_this);
slouken@3057
  2829
        }
slouken@3057
  2830
    }
slouken@3057
  2831
}
slouken@3057
  2832
slouken@1926
  2833
SDL_bool
slouken@1926
  2834
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2835
{
hfutrell@2745
  2836
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2837
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@2753
  2838
    const char *extensions;
slouken@2753
  2839
    const char *start;
slouken@2753
  2840
    const char *where, *terminator;
slouken@1926
  2841