src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Sat, 03 Oct 2009 16:23:16 +0000
changeset 3333 b334b4f7dfa0
parent 3318 f085091f74cd
child 3417 64a60c5d502e
permissions -rw-r--r--
[SDL] Bad math in SDL_RenderCopy

Mason Wheeler to sdl

When I tried to render an image using something other than NULL for srcrect, it got horribly distorted. I traced it down to the fact that the math in the rectangle adjustments performed just before the call to renderer->RenderCopy is written inside out. It should look like this:

if (dstrect->w != real_dstrect.w) {
int deltax = (dstrect->x - real_dstrect.x);
int deltaw = (dstrect->w - real_dstrect.w);
real_srcrect.x += (deltax * real_srcrect.w) / dstrect->w;
real_srcrect.w += (deltaw * real_srcrect.w) / dstrect->w;
}
if (dstrect->h != real_dstrect.h) {
int deltay = (dstrect->y - real_dstrect.y);
int deltah = (dstrect->h - real_dstrect.h);
real_srcrect.y += (deltay * real_srcrect.h) / dstrect->h;
real_srcrect.h += (deltah * real_srcrect.h) / dstrect->h;
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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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   326
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   327
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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   337
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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   343
    }
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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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   348
    }
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   349
    _this->current_display = index;
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   350
    return 0;
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   351
}
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   353
int
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SDL_GetCurrentVideoDisplay(void)
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   355
{
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   356
    if (!_this) {
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   357
        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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   362
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   363
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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   370
    /* Make sure we don't already have the mode in the list */
slouken@2753
   371
    modes = display->display_modes;
slouken@2753
   372
    nmodes = display->num_display_modes;
slouken@2753
   373
    for (i = nmodes; i--;) {
slouken@2753
   374
        if (SDL_memcmp(mode, &modes[i], sizeof(*mode)) == 0) {
slouken@2753
   375
            return SDL_FALSE;
slouken@2753
   376
        }
slouken@2753
   377
    }
slouken@1895
   378
slouken@2753
   379
    /* Go ahead and add the new mode */
slouken@2753
   380
    if (nmodes == display->max_display_modes) {
slouken@2753
   381
        modes =
slouken@2753
   382
            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@2753
   757
        SDL_UninitializedVideo();
slouken@2753
   758
        return 0;
slouken@2753
   759
    }
slouken@3057
   760
    if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   761
        if (!_this->GL_CreateContext) {
slouken@3057
   762
            SDL_SetError("No OpenGL support in video driver");
slouken@3057
   763
            return 0;
slouken@3057
   764
        }
slouken@3057
   765
        SDL_GL_LoadLibrary(NULL);
slouken@2753
   766
    }
slouken@2753
   767
    SDL_zero(window);
slouken@2753
   768
    window.id = _this->next_object_id++;
slouken@2753
   769
    window.x = x;
slouken@2753
   770
    window.y = y;
slouken@2753
   771
    window.w = w;
slouken@2753
   772
    window.h = h;
slouken@2753
   773
    window.flags = (flags & allowed_flags);
slouken@2753
   774
    window.display = _this->current_display;
slouken@1912
   775
slouken@2753
   776
    if (_this->CreateWindow && _this->CreateWindow(_this, &window) < 0) {
slouken@3057
   777
        if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   778
            SDL_GL_UnloadLibrary();
slouken@3057
   779
        }
slouken@2753
   780
        return 0;
slouken@2753
   781
    }
slouken@2753
   782
    display = &SDL_CurrentDisplay;
slouken@2753
   783
    num_windows = display->num_windows;
slouken@2753
   784
    windows =
slouken@2753
   785
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@2753
   786
    if (!windows) {
slouken@2753
   787
        if (_this->DestroyWindow) {
slouken@2753
   788
            _this->DestroyWindow(_this, &window);
slouken@2753
   789
        }
slouken@3057
   790
        if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   791
            SDL_GL_UnloadLibrary();
slouken@3057
   792
        }
slouken@2753
   793
        return 0;
slouken@2753
   794
    }
slouken@2753
   795
    windows[num_windows] = window;
slouken@2753
   796
    display->windows = windows;
slouken@2753
   797
    display->num_windows++;
slouken@0
   798
slouken@2753
   799
    if (title) {
slouken@2753
   800
        SDL_SetWindowTitle(window.id, title);
slouken@2753
   801
    }
slouken@2753
   802
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
   803
        SDL_MaximizeWindow(window.id);
slouken@2753
   804
    }
slouken@2753
   805
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
   806
        SDL_MinimizeWindow(window.id);
slouken@2753
   807
    }
slouken@2753
   808
    if (flags & SDL_WINDOW_SHOWN) {
slouken@2753
   809
        SDL_ShowWindow(window.id);
slouken@2753
   810
    }
slouken@2875
   811
    SDL_UpdateWindowGrab(&window);
slouken@2875
   812
slouken@2753
   813
    return window.id;
slouken@1895
   814
}
slouken@0
   815
slouken@1895
   816
SDL_WindowID
slouken@1895
   817
SDL_CreateWindowFrom(const void *data)
slouken@1895
   818
{
slouken@2753
   819
    SDL_VideoDisplay *display;
slouken@2753
   820
    SDL_Window window;
slouken@2753
   821
    int num_windows;
slouken@2753
   822
    SDL_Window *windows;
slouken@0
   823
slouken@2753
   824
    if (!_this) {
slouken@2753
   825
        SDL_UninitializedVideo();
slouken@2753
   826
        return (0);
slouken@2753
   827
    }
slouken@2753
   828
    SDL_zero(window);
slouken@2753
   829
    window.id = _this->next_object_id++;
slouken@2753
   830
    window.display = _this->current_display;
slouken@3057
   831
    window.flags = SDL_WINDOW_FOREIGN;
slouken@1895
   832
slouken@2753
   833
    if (!_this->CreateWindowFrom ||
slouken@2753
   834
        _this->CreateWindowFrom(_this, &window, data) < 0) {
slouken@2753
   835
        return 0;
slouken@2753
   836
    }
slouken@2753
   837
    display = &SDL_CurrentDisplay;
slouken@2753
   838
    num_windows = display->num_windows;
slouken@2753
   839
    windows =
slouken@2753
   840
        SDL_realloc(display->windows, (num_windows + 1) * sizeof(*windows));
slouken@2753
   841
    if (!windows) {
slouken@2753
   842
        if (_this->DestroyWindow) {
slouken@2753
   843
            _this->DestroyWindow(_this, &window);
slouken@2753
   844
        }
slouken@2753
   845
        if (window.title) {
slouken@2753
   846
            SDL_free(window.title);
slouken@2753
   847
        }
slouken@2753
   848
        return 0;
slouken@2753
   849
    }
slouken@2753
   850
    windows[num_windows] = window;
slouken@2753
   851
    display->windows = windows;
slouken@2753
   852
    display->num_windows++;
slouken@1895
   853
slouken@2753
   854
    return window.id;
slouken@1895
   855
}
slouken@1895
   856
slouken@1924
   857
int
slouken@1928
   858
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
   859
{
slouken@3057
   860
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@3057
   861
                                  SDL_WINDOW_OPENGL |
slouken@3057
   862
                                  SDL_WINDOW_BORDERLESS |
slouken@3057
   863
                                  SDL_WINDOW_RESIZABLE |
slouken@3057
   864
                                  SDL_WINDOW_INPUT_GRABBED);
slouken@2753
   865
    char *title = window->title;
slouken@1956
   866
slouken@2753
   867
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@2753
   868
        SDL_SetError("No OpenGL support in video driver");
slouken@2753
   869
        return -1;
slouken@2753
   870
    }
slouken@3057
   871
    if ((window->flags & SDL_WINDOW_OPENGL) != (flags & SDL_WINDOW_OPENGL)) {
slouken@3057
   872
        if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   873
            SDL_GL_LoadLibrary(NULL);
slouken@3057
   874
        } else {
slouken@3057
   875
            SDL_GL_UnloadLibrary();
slouken@3057
   876
        }
slouken@3057
   877
    }
slouken@3057
   878
slouken@3057
   879
    if (window->flags & SDL_WINDOW_FOREIGN) {
slouken@3057
   880
        /* Can't destroy and re-create foreign windows, hrm */
slouken@3057
   881
        flags |= SDL_WINDOW_FOREIGN;
slouken@3057
   882
    } else {
slouken@3057
   883
        flags &= ~SDL_WINDOW_FOREIGN;
slouken@3057
   884
    }
slouken@3057
   885
slouken@3057
   886
    if (_this->DestroyWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@2753
   887
        _this->DestroyWindow(_this, window);
slouken@2753
   888
    }
slouken@3057
   889
slouken@2753
   890
    window->title = NULL;
slouken@3057
   891
    window->flags = (flags & allowed_flags);
slouken@1956
   892
slouken@3057
   893
    if (_this->CreateWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@3057
   894
        if (_this->CreateWindow(_this, window) < 0) {
slouken@3057
   895
            if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
   896
                SDL_GL_UnloadLibrary();
slouken@3057
   897
            }
slouken@3057
   898
            return -1;
slouken@3057
   899
        }
slouken@2753
   900
    }
slouken@3057
   901
slouken@2753
   902
    if (title) {
slouken@2753
   903
        SDL_SetWindowTitle(window->id, title);
slouken@2753
   904
        SDL_free(title);
slouken@2753
   905
    }
slouken@2753
   906
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
   907
        SDL_MaximizeWindow(window->id);
slouken@2753
   908
    }
slouken@2753
   909
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
   910
        SDL_MinimizeWindow(window->id);
slouken@2753
   911
    }
slouken@2753
   912
    if (flags & SDL_WINDOW_SHOWN) {
slouken@2753
   913
        SDL_ShowWindow(window->id);
slouken@2753
   914
    }
slouken@2875
   915
    SDL_UpdateWindowGrab(window);
slouken@2875
   916
slouken@2753
   917
    return 0;
slouken@1924
   918
}
slouken@1924
   919
slouken@2753
   920
SDL_Window *
slouken@1895
   921
SDL_GetWindowFromID(SDL_WindowID windowID)
slouken@1895
   922
{
slouken@2753
   923
    int i, j;
slouken@1895
   924
slouken@2753
   925
    if (!_this) {
slouken@2753
   926
        SDL_UninitializedVideo();
slouken@2753
   927
        return NULL;
slouken@2753
   928
    }
slouken@2753
   929
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
   930
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
   931
        for (j = 0; j < display->num_windows; ++j) {
slouken@2753
   932
            SDL_Window *window = &display->windows[j];
slouken@2753
   933
            if (window->id == windowID) {
slouken@2753
   934
                return window;
slouken@2753
   935
            }
slouken@2753
   936
        }
slouken@2753
   937
    }
slouken@2753
   938
    return NULL;
slouken@1895
   939
}
slouken@1895
   940
slouken@1895
   941
SDL_VideoDisplay *
slouken@1895
   942
SDL_GetDisplayFromWindow(SDL_Window * window)
slouken@1895
   943
{
slouken@2753
   944
    if (!_this) {
slouken@2753
   945
        SDL_UninitializedVideo();
slouken@2753
   946
        return NULL;
slouken@2753
   947
    }
slouken@2753
   948
    if (!window) {
slouken@2753
   949
        return NULL;
slouken@2753
   950
    }
slouken@2753
   951
    return &_this->displays[window->display];
slouken@1895
   952
}
slouken@1895
   953
slouken@1895
   954
Uint32
slouken@1895
   955
SDL_GetWindowFlags(SDL_WindowID windowID)
slouken@1895
   956
{
slouken@2753
   957
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   958
slouken@2753
   959
    if (!window) {
slouken@2753
   960
        return 0;
slouken@2753
   961
    }
slouken@2753
   962
    return window->flags;
slouken@1895
   963
}
slouken@1895
   964
slouken@1895
   965
void
slouken@1895
   966
SDL_SetWindowTitle(SDL_WindowID windowID, const char *title)
slouken@1895
   967
{
slouken@2753
   968
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   969
slouken@2753
   970
    if (!window || title == window->title) {
slouken@2753
   971
        return;
slouken@2753
   972
    }
slouken@2753
   973
    if (window->title) {
slouken@2753
   974
        SDL_free(window->title);
slouken@2753
   975
    }
slouken@2753
   976
    if (title) {
slouken@2753
   977
        window->title = SDL_strdup(title);
slouken@2753
   978
    } else {
slouken@2753
   979
        window->title = NULL;
slouken@2753
   980
    }
slouken@1956
   981
slouken@2753
   982
    if (_this->SetWindowTitle) {
slouken@2753
   983
        _this->SetWindowTitle(_this, window);
slouken@2753
   984
    }
slouken@1895
   985
}
slouken@1895
   986
slouken@2753
   987
const char *
slouken@1895
   988
SDL_GetWindowTitle(SDL_WindowID windowID)
slouken@1895
   989
{
slouken@2753
   990
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
   991
slouken@2753
   992
    if (!window) {
slouken@2753
   993
        return NULL;
slouken@2753
   994
    }
slouken@2753
   995
    return window->title;
slouken@1895
   996
}
slouken@1895
   997
slouken@1895
   998
void
slouken@2967
   999
SDL_SetWindowIcon(SDL_WindowID windowID, SDL_Surface * icon)
slouken@2967
  1000
{
slouken@2967
  1001
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2967
  1002
slouken@2967
  1003
    if (!window) {
slouken@2967
  1004
        return;
slouken@2967
  1005
    }
slouken@2967
  1006
    if (_this->SetWindowIcon) {
slouken@2967
  1007
        _this->SetWindowIcon(_this, window, icon);
slouken@2967
  1008
    }
slouken@2967
  1009
}
slouken@2967
  1010
slouken@2967
  1011
void
slouken@1895
  1012
SDL_SetWindowData(SDL_WindowID windowID, void *userdata)
slouken@1895
  1013
{
slouken@2753
  1014
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1015
slouken@2753
  1016
    if (!window) {
slouken@2753
  1017
        return;
slouken@2753
  1018
    }
slouken@2753
  1019
    window->userdata = userdata;
slouken@1895
  1020
}
slouken@1895
  1021
slouken@2753
  1022
void *
slouken@1895
  1023
SDL_GetWindowData(SDL_WindowID windowID)
slouken@1895
  1024
{
slouken@2753
  1025
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1026
slouken@2753
  1027
    if (!window) {
slouken@2753
  1028
        return NULL;
slouken@2753
  1029
    }
slouken@2753
  1030
    return window->userdata;
slouken@1895
  1031
}
slouken@1895
  1032
slouken@1895
  1033
void
slouken@1895
  1034
SDL_SetWindowPosition(SDL_WindowID windowID, int x, int y)
slouken@1895
  1035
{
slouken@2753
  1036
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  1037
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1038
slouken@2753
  1039
    if (!window) {
slouken@2753
  1040
        return;
slouken@2753
  1041
    }
slouken@2875
  1042
    if (x != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1043
        window->x = x;
slouken@2753
  1044
    }
slouken@2875
  1045
    if (y != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1046
        window->y = y;
slouken@2753
  1047
    }
slouken@2753
  1048
    if (_this->SetWindowPosition) {
slouken@2753
  1049
        _this->SetWindowPosition(_this, window);
slouken@2753
  1050
    }
slouken@2875
  1051
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MOVED, x, y);
slouken@1895
  1052
}
slouken@1895
  1053
slouken@1895
  1054
void
slouken@1895
  1055
SDL_GetWindowPosition(SDL_WindowID windowID, int *x, int *y)
slouken@1895
  1056
{
slouken@2753
  1057
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1058
slouken@2753
  1059
    if (!window) {
slouken@2753
  1060
        return;
slouken@2753
  1061
    }
slouken@2753
  1062
    if (x) {
slouken@2753
  1063
        *x = window->x;
slouken@2753
  1064
    }
slouken@2753
  1065
    if (y) {
slouken@2753
  1066
        *y = window->y;
slouken@2753
  1067
    }
slouken@1895
  1068
}
slouken@1895
  1069
slouken@1895
  1070
void
slouken@1895
  1071
SDL_SetWindowSize(SDL_WindowID windowID, int w, int h)
slouken@1895
  1072
{
slouken@2753
  1073
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1074
slouken@2753
  1075
    if (!window) {
slouken@2753
  1076
        return;
slouken@2753
  1077
    }
slouken@2753
  1078
    window->w = w;
slouken@2753
  1079
    window->h = h;
slouken@1895
  1080
slouken@2753
  1081
    if (_this->SetWindowSize) {
slouken@2753
  1082
        _this->SetWindowSize(_this, window);
slouken@2753
  1083
    }
slouken@2849
  1084
    SDL_OnWindowResized(window);
slouken@1895
  1085
}
slouken@1895
  1086
slouken@1895
  1087
void
slouken@1895
  1088
SDL_GetWindowSize(SDL_WindowID windowID, int *w, int *h)
slouken@1895
  1089
{
slouken@2753
  1090
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1091
slouken@2860
  1092
    if (window) {
slouken@2849
  1093
        if (w) {
slouken@2849
  1094
            *w = window->w;
slouken@2849
  1095
        }
slouken@2849
  1096
        if (h) {
slouken@2849
  1097
            *h = window->h;
slouken@2849
  1098
        }
slouken@2849
  1099
    } else {
slouken@2849
  1100
        if (w) {
slouken@2849
  1101
            *w = 0;
slouken@2849
  1102
        }
slouken@2849
  1103
        if (h) {
slouken@2849
  1104
            *h = 0;
slouken@2849
  1105
        }
slouken@2753
  1106
    }
slouken@1895
  1107
}
slouken@1895
  1108
slouken@1895
  1109
void
slouken@1895
  1110
SDL_ShowWindow(SDL_WindowID windowID)
slouken@1895
  1111
{
slouken@2753
  1112
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1113
slouken@2753
  1114
    if (!window || (window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1115
        return;
slouken@2753
  1116
    }
slouken@1895
  1117
slouken@2753
  1118
    if (_this->ShowWindow) {
slouken@2753
  1119
        _this->ShowWindow(_this, window);
slouken@2753
  1120
    }
slouken@2875
  1121
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1122
}
slouken@1895
  1123
slouken@1895
  1124
void
slouken@1895
  1125
SDL_HideWindow(SDL_WindowID windowID)
slouken@1895
  1126
{
slouken@2753
  1127
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1128
slouken@2753
  1129
    if (!window || !(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1130
        return;
slouken@2753
  1131
    }
slouken@1895
  1132
slouken@2753
  1133
    if (_this->HideWindow) {
slouken@2753
  1134
        _this->HideWindow(_this, window);
slouken@2753
  1135
    }
slouken@2875
  1136
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1137
}
slouken@1895
  1138
slouken@1895
  1139
void
slouken@1895
  1140
SDL_RaiseWindow(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@2753
  1147
    if (_this->RaiseWindow) {
slouken@2753
  1148
        _this->RaiseWindow(_this, window);
slouken@2753
  1149
    }
slouken@1895
  1150
}
slouken@1895
  1151
slouken@1895
  1152
void
slouken@1895
  1153
SDL_MaximizeWindow(SDL_WindowID windowID)
slouken@1895
  1154
{
slouken@2753
  1155
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1156
slouken@2753
  1157
    if (!window || (window->flags & SDL_WINDOW_MAXIMIZED)) {
slouken@2753
  1158
        return;
slouken@2753
  1159
    }
slouken@1895
  1160
slouken@2753
  1161
    if (_this->MaximizeWindow) {
slouken@2753
  1162
        _this->MaximizeWindow(_this, window);
slouken@2753
  1163
    }
slouken@2875
  1164
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@1895
  1165
}
slouken@1895
  1166
slouken@1895
  1167
void
slouken@1895
  1168
SDL_MinimizeWindow(SDL_WindowID windowID)
slouken@1895
  1169
{
slouken@2753
  1170
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1171
slouken@2753
  1172
    if (!window || (window->flags & SDL_WINDOW_MINIMIZED)) {
slouken@2753
  1173
        return;
slouken@2753
  1174
    }
slouken@1895
  1175
slouken@2753
  1176
    if (_this->MinimizeWindow) {
slouken@2753
  1177
        _this->MinimizeWindow(_this, window);
slouken@2753
  1178
    }
slouken@2875
  1179
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@1895
  1180
}
slouken@1895
  1181
slouken@1895
  1182
void
slouken@1895
  1183
SDL_RestoreWindow(SDL_WindowID windowID)
slouken@1895
  1184
{
slouken@2753
  1185
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1186
slouken@2753
  1187
    if (!window
slouken@2934
  1188
        || !(window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@2753
  1189
        return;
slouken@2753
  1190
    }
slouken@1895
  1191
slouken@2753
  1192
    if (_this->RestoreWindow) {
slouken@2753
  1193
        _this->RestoreWindow(_this, window);
slouken@2753
  1194
    }
slouken@2875
  1195
    SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@1895
  1196
}
slouken@1895
  1197
slouken@1895
  1198
int
slouken@1895
  1199
SDL_SetWindowFullscreen(SDL_WindowID windowID, int fullscreen)
slouken@1895
  1200
{
slouken@2753
  1201
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1202
slouken@2753
  1203
    if (!window) {
slouken@2753
  1204
        return -1;
slouken@2753
  1205
    }
slouken@2753
  1206
    if (fullscreen) {
slouken@2753
  1207
        fullscreen = SDL_WINDOW_FULLSCREEN;
slouken@2753
  1208
    }
slouken@2753
  1209
    if ((window->flags & SDL_WINDOW_FULLSCREEN) == fullscreen) {
slouken@2753
  1210
        return 0;
slouken@2753
  1211
    }
slouken@2753
  1212
    if (fullscreen) {
slouken@2753
  1213
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
  1214
slouken@2753
  1215
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
  1216
            SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1217
slouken@2753
  1218
            /* Hide any other fullscreen windows */
slouken@2753
  1219
            int i;
slouken@2753
  1220
            for (i = 0; i < display->num_windows; ++i) {
slouken@2753
  1221
                SDL_Window *other = &display->windows[i];
slouken@2753
  1222
                if (other->id != windowID && FULLSCREEN_VISIBLE(other)) {
slouken@2753
  1223
                    SDL_MinimizeWindow(other->id);
slouken@2753
  1224
                }
slouken@2753
  1225
            }
slouken@1895
  1226
slouken@2753
  1227
            SDL_SetDisplayMode(&display->fullscreen_mode);
slouken@2753
  1228
        }
slouken@2753
  1229
    } else {
slouken@2753
  1230
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@1895
  1231
slouken@2753
  1232
        if (FULLSCREEN_VISIBLE(window)) {
slouken@2753
  1233
            SDL_SetDisplayMode(NULL);
slouken@2753
  1234
        }
slouken@2753
  1235
    }
slouken@2753
  1236
    return 0;
slouken@1895
  1237
}
slouken@1895
  1238
slouken@1895
  1239
void
slouken@1895
  1240
SDL_SetWindowGrab(SDL_WindowID windowID, int mode)
slouken@1895
  1241
{
slouken@2753
  1242
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1243
slouken@2753
  1244
    if (!window || (!!mode == !!(window->flags & SDL_WINDOW_INPUT_GRABBED))) {
slouken@2753
  1245
        return;
slouken@2753
  1246
    }
slouken@2753
  1247
    if (mode) {
slouken@2753
  1248
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1249
    } else {
slouken@2753
  1250
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1251
    }
slouken@2875
  1252
    SDL_UpdateWindowGrab(window);
slouken@2875
  1253
}
slouken@1895
  1254
slouken@2875
  1255
static void
slouken@2876
  1256
SDL_UpdateWindowGrab(SDL_Window * window)
slouken@2875
  1257
{
slouken@2753
  1258
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@2753
  1259
        _this->SetWindowGrab(_this, window);
slouken@2753
  1260
    }
slouken@1895
  1261
}
slouken@1895
  1262
slouken@1895
  1263
int
slouken@1895
  1264
SDL_GetWindowGrab(SDL_WindowID windowID)
slouken@1895
  1265
{
slouken@2753
  1266
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1267
slouken@2753
  1268
    if (!window) {
slouken@2753
  1269
        return 0;
slouken@2753
  1270
    }
slouken@2753
  1271
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1272
}
slouken@1895
  1273
slouken@1895
  1274
void
slouken@1895
  1275
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1276
{
slouken@2875
  1277
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2875
  1278
        SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_FOCUS_GAINED, 0, 0);
slouken@2875
  1279
    }
slouken@1895
  1280
}
slouken@1895
  1281
slouken@1895
  1282
void
slouken@1895
  1283
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1284
{
slouken@2875
  1285
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2875
  1286
        SDL_SendWindowEvent(window->id, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@2875
  1287
    }
slouken@1895
  1288
}
slouken@1895
  1289
slouken@1895
  1290
void
slouken@1970
  1291
SDL_OnWindowResized(SDL_Window * window)
slouken@1970
  1292
{
slouken@2753
  1293
    SDL_Renderer *renderer = window->renderer;
slouken@1970
  1294
slouken@2753
  1295
    if (renderer && renderer->DisplayModeChanged) {
slouken@2753
  1296
        renderer->DisplayModeChanged(renderer);
slouken@2753
  1297
    }
slouken@1970
  1298
}
slouken@1970
  1299
slouken@1970
  1300
void
slouken@1895
  1301
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1302
{
slouken@2753
  1303
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1304
slouken@2753
  1305
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
  1306
        SDL_SetDisplayMode(&display->fullscreen_mode);
slouken@2753
  1307
    }
slouken@2753
  1308
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@2753
  1309
        _this->SetDisplayGammaRamp(_this, display->gamma);
slouken@2753
  1310
    }
slouken@2876
  1311
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN))
slouken@2876
  1312
        && _this->SetWindowGrab) {
slouken@2753
  1313
        _this->SetWindowGrab(_this, window);
slouken@2753
  1314
    }
slouken@1895
  1315
}
slouken@1895
  1316
slouken@1895
  1317
void
slouken@1895
  1318
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1319
{
slouken@2753
  1320
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
slouken@1895
  1321
slouken@2753
  1322
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@2753
  1323
        SDL_MinimizeWindow(window->id);
slouken@2753
  1324
        SDL_SetDisplayMode(NULL);
slouken@2753
  1325
    }
slouken@2753
  1326
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@2753
  1327
        _this->SetDisplayGammaRamp(_this, display->saved_gamma);
slouken@2753
  1328
    }
slouken@2876
  1329
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN))
slouken@2876
  1330
        && _this->SetWindowGrab) {
slouken@2753
  1331
        _this->SetWindowGrab(_this, window);
slouken@2753
  1332
    }
slouken@1895
  1333
}
slouken@1895
  1334
slouken@1895
  1335
SDL_WindowID
slouken@1895
  1336
SDL_GetFocusWindow(void)
slouken@1895
  1337
{
slouken@2753
  1338
    SDL_VideoDisplay *display;
slouken@2753
  1339
    int i;
slouken@1895
  1340
slouken@2753
  1341
    if (!_this) {
slouken@2753
  1342
        return 0;
slouken@2753
  1343
    }
slouken@2753
  1344
    display = &SDL_CurrentDisplay;
slouken@2753
  1345
    for (i = 0; i < display->num_windows; ++i) {
slouken@2753
  1346
        SDL_Window *window = &display->windows[i];
slouken@1895
  1347
slouken@2753
  1348
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@2753
  1349
            return window->id;
slouken@2753
  1350
        }
slouken@2753
  1351
    }
slouken@2753
  1352
    return 0;
slouken@1895
  1353
}
slouken@1895
  1354
slouken@1895
  1355
void
slouken@1895
  1356
SDL_DestroyWindow(SDL_WindowID windowID)
slouken@1895
  1357
{
slouken@2753
  1358
    int i, j;
slouken@1895
  1359
slouken@2753
  1360
    if (!_this) {
slouken@2753
  1361
        return;
slouken@2753
  1362
    }
slouken@2753
  1363
    /* Restore video mode, etc. */
slouken@2753
  1364
    SDL_SendWindowEvent(windowID, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
slouken@1895
  1365
slouken@2753
  1366
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
  1367
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  1368
        for (j = 0; j < display->num_windows; ++j) {
slouken@2753
  1369
            SDL_Window *window = &display->windows[j];
slouken@2753
  1370
            if (window->id != windowID) {
slouken@2753
  1371
                continue;
slouken@2753
  1372
            }
slouken@2753
  1373
            if (window->title) {
slouken@2753
  1374
                SDL_free(window->title);
slouken@2753
  1375
                window->title = NULL;
slouken@2753
  1376
            }
slouken@2753
  1377
            if (window->renderer) {
slouken@2753
  1378
                SDL_DestroyRenderer(window->id);
slouken@2753
  1379
                window->renderer = NULL;
slouken@2753
  1380
            }
slouken@2753
  1381
            if (_this->DestroyWindow) {
slouken@2753
  1382
                _this->DestroyWindow(_this, window);
slouken@2753
  1383
            }
slouken@3057
  1384
            if (window->flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1385
                SDL_GL_UnloadLibrary();
slouken@3057
  1386
            }
slouken@2753
  1387
            if (j != display->num_windows - 1) {
slouken@2753
  1388
                SDL_memcpy(&display->windows[i],
slouken@2753
  1389
                           &display->windows[i + 1],
slouken@2753
  1390
                           (display->num_windows - i - 1) * sizeof(*window));
slouken@2753
  1391
            }
slouken@2753
  1392
            --display->num_windows;
slouken@2753
  1393
            return;
slouken@2753
  1394
        }
slouken@2753
  1395
    }
slouken@1895
  1396
}
slouken@1895
  1397
slouken@1895
  1398
void
slouken@1895
  1399
SDL_AddRenderDriver(int displayIndex, const SDL_RenderDriver * driver)
slouken@1895
  1400
{
slouken@2753
  1401
    SDL_VideoDisplay *display;
slouken@2753
  1402
    SDL_RenderDriver *render_drivers;
slouken@1895
  1403
slouken@2753
  1404
    if (displayIndex >= _this->num_displays) {
slouken@2753
  1405
        return;
slouken@2753
  1406
    }
slouken@2753
  1407
    display = &_this->displays[displayIndex];
slouken@2119
  1408
slouken@2753
  1409
    render_drivers =
slouken@2753
  1410
        SDL_realloc(display->render_drivers,
slouken@2753
  1411
                    (display->num_render_drivers +
slouken@2753
  1412
                     1) * sizeof(*render_drivers));
slouken@2753
  1413
    if (render_drivers) {
slouken@2753
  1414
        render_drivers[display->num_render_drivers] = *driver;
slouken@2753
  1415
        display->render_drivers = render_drivers;
slouken@2753
  1416
        display->num_render_drivers++;
slouken@2753
  1417
    }
slouken@1895
  1418
}
slouken@1895
  1419
slouken@1895
  1420
int
slouken@1969
  1421
SDL_GetNumRenderDrivers(void)
slouken@1895
  1422
{
slouken@2753
  1423
    if (_this) {
slouken@2753
  1424
        return SDL_CurrentDisplay.num_render_drivers;
slouken@2753
  1425
    }
slouken@2753
  1426
    return 0;
slouken@1895
  1427
}
slouken@1895
  1428
slouken@1895
  1429
int
slouken@1969
  1430
SDL_GetRenderDriverInfo(int index, SDL_RendererInfo * info)
slouken@1895
  1431
{
slouken@2753
  1432
    if (!_this) {
slouken@2753
  1433
        SDL_UninitializedVideo();
slouken@2753
  1434
        return -1;
slouken@2753
  1435
    }
slouken@2753
  1436
    if (index < 0 || index >= SDL_GetNumRenderDrivers()) {
slouken@2753
  1437
        SDL_SetError("index must be in the range of 0 - %d",
slouken@2753
  1438
                     SDL_GetNumRenderDrivers() - 1);
slouken@2753
  1439
        return -1;
slouken@2753
  1440
    }
slouken@2753
  1441
    *info = SDL_CurrentDisplay.render_drivers[index].info;
slouken@2753
  1442
    return 0;
slouken@1895
  1443
}
slouken@1895
  1444
slouken@1895
  1445
int
slouken@1895
  1446
SDL_CreateRenderer(SDL_WindowID windowID, int index, Uint32 flags)
slouken@1895
  1447
{
slouken@2753
  1448
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@1895
  1449
slouken@2753
  1450
    if (!window) {
slouken@3091
  1451
        SDL_SetError("Invalid window ID");
slouken@3091
  1452
        return -1;
slouken@2753
  1453
    }
slouken@2753
  1454
    if (index < 0) {
slouken@2753
  1455
        const char *override = SDL_getenv("SDL_VIDEO_RENDERER");
slouken@2753
  1456
        int n = SDL_GetNumRenderDrivers();
slouken@2753
  1457
        for (index = 0; index < n; ++index) {
slouken@2753
  1458
            SDL_RenderDriver *driver =
slouken@2753
  1459
                &SDL_CurrentDisplay.render_drivers[index];
slouken@1895
  1460
slouken@2753
  1461
            if (override) {
slouken@2753
  1462
                if (SDL_strcasecmp(override, driver->info.name) == 0) {
slouken@2753
  1463
                    break;
slouken@2753
  1464
                }
slouken@2753
  1465
            } else {
slouken@2753
  1466
                if ((driver->info.flags & flags) == flags) {
slouken@2753
  1467
                    break;
slouken@2753
  1468
                }
slouken@2753
  1469
            }
slouken@2753
  1470
        }
slouken@2753
  1471
        if (index == n) {
slouken@2753
  1472
            SDL_SetError("Couldn't find matching render driver");
slouken@2753
  1473
            return -1;
slouken@2753
  1474
        }
slouken@2753
  1475
    }
slouken@2753
  1476
    if (index >= SDL_GetNumRenderDrivers()) {
slouken@2753
  1477
        SDL_SetError("index must be -1 or in the range of 0 - %d",
slouken@2753
  1478
                     SDL_GetNumRenderDrivers() - 1);
slouken@2753
  1479
        return -1;
slouken@2753
  1480
    }
slouken@2753
  1481
    /* Free any existing renderer */
slouken@2753
  1482
    SDL_DestroyRenderer(windowID);
slouken@1895
  1483
slouken@2753
  1484
    /* Create a new renderer instance */
slouken@2753
  1485
    window->renderer = SDL_CurrentDisplay.render_drivers[index]
slouken@2753
  1486
        .CreateRenderer(window, flags);
slouken@3092
  1487
slouken@3139
  1488
    if (window->renderer == NULL) {
slouken@3139
  1489
        /* Assuming renderer set its error */
slouken@3139
  1490
        return -1;
slouken@3092
  1491
    }
slouken@3092
  1492
slouken@2753
  1493
    SDL_SelectRenderer(window->id);
slouken@1895
  1494
slouken@2753
  1495
    return 0;
slouken@1895
  1496
}
slouken@1895
  1497
slouken@1895
  1498
int
slouken@1895
  1499
SDL_SelectRenderer(SDL_WindowID windowID)
slouken@1895
  1500
{
slouken@2753
  1501
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  1502
    SDL_Renderer *renderer;
slouken@1895
  1503
slouken@3318
  1504
    if (!window) {
slouken@3318
  1505
        SDL_SetError("Invalid window ID");
slouken@2753
  1506
        return -1;
slouken@2753
  1507
    }
slouken@2753
  1508
    renderer = window->renderer;
slouken@3318
  1509
    if (!renderer) {
slouken@3318
  1510
        SDL_SetError("Renderer hasn't been created yet");
slouken@3318
  1511
        return -1;
slouken@3318
  1512
    }
slouken@3318
  1513
    if (renderer->ActivateRenderer) {
slouken@2753
  1514
        if (renderer->ActivateRenderer(renderer) < 0) {
slouken@2753
  1515
            return -1;
slouken@2753
  1516
        }
slouken@2753
  1517
    }
slouken@2753
  1518
    SDL_CurrentDisplay.current_renderer = renderer;
slouken@2753
  1519
    return 0;
slouken@1895
  1520
}
slouken@1895
  1521
slouken@1969
  1522
int
slouken@1969
  1523
SDL_GetRendererInfo(SDL_RendererInfo * info)
slouken@1969
  1524
{
slouken@2753
  1525
    if (!_this) {
slouken@2753
  1526
        SDL_UninitializedVideo();
slouken@2753
  1527
        return -1;
slouken@2753
  1528
    }
slouken@2753
  1529
    if (!SDL_CurrentDisplay.current_renderer) {
slouken@2753
  1530
        SDL_SetError("There is no current renderer");
slouken@2753
  1531
        return -1;
slouken@2753
  1532
    }
slouken@2753
  1533
    *info = SDL_CurrentDisplay.current_renderer->info;
slouken@2753
  1534
    return 0;
slouken@1969
  1535
}
slouken@1969
  1536
slouken@1895
  1537
SDL_TextureID
slouken@1895
  1538
SDL_CreateTexture(Uint32 format, int access, int w, int h)
slouken@1895
  1539
{
slouken@2753
  1540
    int hash;
slouken@2753
  1541
    SDL_Renderer *renderer;
slouken@2753
  1542
    SDL_Texture *texture;
slouken@1895
  1543
slouken@2753
  1544
    if (!_this) {
slouken@2753
  1545
        SDL_UninitializedVideo();
slouken@2753
  1546
        return 0;
slouken@2753
  1547
    }
slouken@2753
  1548
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  1549
    if (!renderer) {
slouken@2810
  1550
        return 0;
slouken@2810
  1551
    }
slouken@2810
  1552
    if (!renderer->CreateTexture) {
slouken@2810
  1553
        SDL_Unsupported();
slouken@2753
  1554
        return 0;
slouken@2753
  1555
    }
slouken@2753
  1556
    texture = (SDL_Texture *) SDL_calloc(1, sizeof(*texture));
slouken@2753
  1557
    if (!texture) {
slouken@2753
  1558
        SDL_OutOfMemory();
slouken@2753
  1559
        return 0;
slouken@2753
  1560
    }
slouken@2753
  1561
    texture->id = _this->next_object_id++;
slouken@2753
  1562
    texture->format = format;
slouken@2753
  1563
    texture->access = access;
slouken@2753
  1564
    texture->w = w;
slouken@2753
  1565
    texture->h = h;
slouken@2753
  1566
    texture->r = 255;
slouken@2753
  1567
    texture->g = 255;
slouken@2753
  1568
    texture->b = 255;
slouken@2753
  1569
    texture->a = 255;
slouken@2753
  1570
    texture->renderer = renderer;
slouken@1895
  1571
slouken@2753
  1572
    if (renderer->CreateTexture(renderer, texture) < 0) {
slouken@2753
  1573
        if (renderer->DestroyTexture) {
slouken@2753
  1574
            renderer->DestroyTexture(renderer, texture);
slouken@2753
  1575
        }
slouken@2753
  1576
        SDL_free(texture);
slouken@2753
  1577
        return 0;
slouken@2753
  1578
    }
slouken@2753
  1579
    hash = (texture->id % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  1580
    texture->next = SDL_CurrentDisplay.textures[hash];
slouken@2753
  1581
    SDL_CurrentDisplay.textures[hash] = texture;
slouken@1895
  1582
slouken@2753
  1583
    return texture->id;
slouken@1895
  1584
}
slouken@1895
  1585
slouken@1895
  1586
SDL_TextureID
slouken@2222
  1587
SDL_CreateTextureFromSurface(Uint32 format, SDL_Surface * surface)
slouken@1895
  1588
{
slouken@2753
  1589
    SDL_TextureID textureID;
slouken@3057
  1590
    Uint32 requested_format = format;
slouken@2753
  1591
    SDL_PixelFormat *fmt;
lestat@3166
  1592
    SDL_Renderer *renderer;
slouken@2753
  1593
    int bpp;
slouken@2753
  1594
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@1895
  1595
slouken@2753
  1596
    if (!surface) {
slouken@2753
  1597
        SDL_SetError("SDL_CreateTextureFromSurface() passed NULL surface");
slouken@2753
  1598
        return 0;
slouken@2753
  1599
    }
slouken@2753
  1600
    fmt = surface->format;
slouken@1895
  1601
lestat@3166
  1602
    renderer = SDL_CurrentDisplay.current_renderer;
lestat@3166
  1603
    if (!renderer) {
slouken@3315
  1604
        SDL_SetError("No current renderer available");
lestat@3166
  1605
        return 0;
lestat@3166
  1606
    }
lestat@3166
  1607
slouken@2753
  1608
    if (format) {
slouken@2753
  1609
        if (!SDL_PixelFormatEnumToMasks
slouken@2753
  1610
            (format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@2753
  1611
            SDL_SetError("Unknown pixel format");
slouken@2753
  1612
            return 0;
slouken@2753
  1613
        }
slouken@2753
  1614
    } else {
slouken@2753
  1615
        if (surface->format->Amask
slouken@2753
  1616
            || !(surface->map->info.flags &
slouken@2753
  1617
                 (SDL_COPY_COLORKEY | SDL_COPY_MASK | SDL_COPY_BLEND))) {
slouken@3196
  1618
            Uint32 it;
lestat@3178
  1619
            int pfmt;
lestat@3178
  1620
lestat@3178
  1621
            /* Pixel formats, sorted by best first */
slouken@3186
  1622
            static const Uint32 sdl_pformats[] = {
slouken@3186
  1623
                SDL_PIXELFORMAT_ARGB8888,
slouken@3186
  1624
                SDL_PIXELFORMAT_RGBA8888,
slouken@3186
  1625
                SDL_PIXELFORMAT_ABGR8888,
slouken@3186
  1626
                SDL_PIXELFORMAT_BGRA8888,
slouken@3186
  1627
                SDL_PIXELFORMAT_RGB888,
slouken@3186
  1628
                SDL_PIXELFORMAT_BGR888,
slouken@3186
  1629
                SDL_PIXELFORMAT_RGB24,
slouken@3186
  1630
                SDL_PIXELFORMAT_BGR24,
slouken@3186
  1631
                SDL_PIXELFORMAT_RGB565,
slouken@3186
  1632
                SDL_PIXELFORMAT_BGR565,
slouken@3186
  1633
                SDL_PIXELFORMAT_ARGB1555,
slouken@3186
  1634
                SDL_PIXELFORMAT_ABGR1555,
slouken@3186
  1635
                SDL_PIXELFORMAT_RGB555,
slouken@3186
  1636
                SDL_PIXELFORMAT_BGR555,
slouken@3186
  1637
                SDL_PIXELFORMAT_ARGB4444,
slouken@3186
  1638
                SDL_PIXELFORMAT_ABGR4444,
slouken@3186
  1639
                SDL_PIXELFORMAT_RGB444,
slouken@3186
  1640
                SDL_PIXELFORMAT_ARGB2101010,
slouken@3186
  1641
                SDL_PIXELFORMAT_INDEX8,
slouken@3186
  1642
                SDL_PIXELFORMAT_INDEX4LSB,
slouken@3186
  1643
                SDL_PIXELFORMAT_INDEX4MSB,
slouken@3186
  1644
                SDL_PIXELFORMAT_RGB332,
slouken@3186
  1645
                SDL_PIXELFORMAT_INDEX1LSB,
slouken@3186
  1646
                SDL_PIXELFORMAT_INDEX1MSB,
slouken@3186
  1647
                SDL_PIXELFORMAT_UNKNOWN
slouken@3186
  1648
            };
lestat@3178
  1649
slouken@2753
  1650
            bpp = fmt->BitsPerPixel;
slouken@2753
  1651
            Rmask = fmt->Rmask;
slouken@2753
  1652
            Gmask = fmt->Gmask;
slouken@2753
  1653
            Bmask = fmt->Bmask;
slouken@2753
  1654
            Amask = fmt->Amask;
lestat@3178
  1655
slouken@3186
  1656
            format =
slouken@3186
  1657
                SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
lestat@3178
  1658
            if (!format) {
lestat@3178
  1659
                SDL_SetError("Unknown pixel format");
lestat@3178
  1660
                return 0;
lestat@3178
  1661
            }
lestat@3178
  1662
lestat@3178
  1663
            /* Search requested format in the supported texture */
lestat@3178
  1664
            /* formats by current renderer                      */
slouken@3186
  1665
            for (it = 0; it < renderer->info.num_texture_formats; it++) {
slouken@3186
  1666
                if (renderer->info.texture_formats[it] == format) {
slouken@3186
  1667
                    break;
lestat@3178
  1668
                }
lestat@3178
  1669
            }
lestat@3178
  1670
lestat@3178
  1671
            /* If requested format can't be found, search any best */
lestat@3178
  1672
            /* format which renderer provides                      */
slouken@3186
  1673
            if (it == renderer->info.num_texture_formats) {
slouken@3186
  1674
                pfmt = 0;
slouken@3186
  1675
                for (;;) {
slouken@3186
  1676
                    if (sdl_pformats[pfmt] == SDL_PIXELFORMAT_UNKNOWN) {
lestat@3178
  1677
                        break;
lestat@3178
  1678
                    }
lestat@3178
  1679
slouken@3186
  1680
                    for (it = 0; it < renderer->info.num_texture_formats;
slouken@3186
  1681
                         it++) {
slouken@3186
  1682
                        if (renderer->info.texture_formats[it] ==
slouken@3186
  1683
                            sdl_pformats[pfmt]) {
slouken@3186
  1684
                            break;
slouken@3186
  1685
                        }
lestat@3178
  1686
                    }
lestat@3178
  1687
slouken@3186
  1688
                    if (it != renderer->info.num_texture_formats) {
slouken@3186
  1689
                        /* The best format has been found */
slouken@3186
  1690
                        break;
lestat@3178
  1691
                    }
lestat@3178
  1692
                    pfmt++;
lestat@3178
  1693
                }
lestat@3178
  1694
lestat@3178
  1695
                /* If any format can't be found, then return an error */
slouken@3186
  1696
                if (it == renderer->info.num_texture_formats) {
slouken@3186
  1697
                    SDL_SetError
slouken@3186
  1698
                        ("Any of the supported pixel formats can't be found");
lestat@3178
  1699
                    return 0;
lestat@3178
  1700
                }
lestat@3178
  1701
lestat@3178
  1702
                /* Convert found pixel format back to color masks */
slouken@3186
  1703
                if (SDL_PixelFormatEnumToMasks
slouken@3186
  1704
                    (renderer->info.texture_formats[it], &bpp, &Rmask, &Gmask,
slouken@3186
  1705
                     &Bmask, &Amask) != SDL_TRUE) {
lestat@3178
  1706
                    SDL_SetError("Unknown pixel format");
lestat@3178
  1707
                    return 0;
lestat@3178
  1708
                }
lestat@3178
  1709
            }
slouken@2753
  1710
        } else {
slouken@2753
  1711
            /* Need a format with alpha */
slouken@3196
  1712
            Uint32 it;
lestat@3166
  1713
            int apfmt;
lestat@3166
  1714
lestat@3166
  1715
            /* Pixel formats with alpha, sorted by best first */
slouken@3169
  1716
            static const Uint32 sdl_alpha_pformats[] = {
slouken@3169
  1717
                SDL_PIXELFORMAT_ARGB8888,
slouken@3169
  1718
                SDL_PIXELFORMAT_RGBA8888,
slouken@3169
  1719
                SDL_PIXELFORMAT_ABGR8888,
slouken@3169
  1720
                SDL_PIXELFORMAT_BGRA8888,
slouken@3169
  1721
                SDL_PIXELFORMAT_ARGB1555,
slouken@3169
  1722
                SDL_PIXELFORMAT_ABGR1555,
slouken@3169
  1723
                SDL_PIXELFORMAT_ARGB4444,
slouken@3169
  1724
                SDL_PIXELFORMAT_ABGR4444,
slouken@3169
  1725
                SDL_PIXELFORMAT_ARGB2101010,
slouken@3169
  1726
                SDL_PIXELFORMAT_UNKNOWN
slouken@3169
  1727
            };
lestat@3166
  1728
lestat@3178
  1729
            if (surface->format->Amask) {
lestat@3178
  1730
                /* If surface already has alpha, then try an original */
lestat@3178
  1731
                /* surface format first                               */
lestat@3178
  1732
                bpp = fmt->BitsPerPixel;
lestat@3178
  1733
                Rmask = fmt->Rmask;
lestat@3178
  1734
                Gmask = fmt->Gmask;
lestat@3178
  1735
                Bmask = fmt->Bmask;
lestat@3178
  1736
                Amask = fmt->Amask;
lestat@3178
  1737
            } else {
lestat@3178
  1738
                bpp = 32;
lestat@3178
  1739
                Rmask = 0x00FF0000;
lestat@3178
  1740
                Gmask = 0x0000FF00;
lestat@3178
  1741
                Bmask = 0x000000FF;
lestat@3178
  1742
                Amask = 0xFF000000;
lestat@3178
  1743
            }
lestat@3166
  1744
slouken@3169
  1745
            format =
slouken@3169
  1746
                SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
lestat@3166
  1747
            if (!format) {
lestat@3166
  1748
                SDL_SetError("Unknown pixel format");
lestat@3166
  1749
                return 0;
lestat@3166
  1750
            }
lestat@3166
  1751
lestat@3166
  1752
            /* Search this format in the supported texture formats */
lestat@3166
  1753
            /* by current renderer                                 */
slouken@3169
  1754
            for (it = 0; it < renderer->info.num_texture_formats; it++) {
slouken@3169
  1755
                if (renderer->info.texture_formats[it] == format) {
slouken@3169
  1756
                    break;
lestat@3166
  1757
                }
lestat@3166
  1758
            }
lestat@3166
  1759
lestat@3166
  1760
            /* If this format can't be found, search any best       */
lestat@3166
  1761
            /* compatible format with alpha which renderer provides */
slouken@3169
  1762
            if (it == renderer->info.num_texture_formats) {
slouken@3169
  1763
                apfmt = 0;
slouken@3169
  1764
                for (;;) {
slouken@3169
  1765
                    if (sdl_alpha_pformats[apfmt] == SDL_PIXELFORMAT_UNKNOWN) {
lestat@3166
  1766
                        break;
lestat@3166
  1767
                    }
lestat@3166
  1768
slouken@3169
  1769
                    for (it = 0; it < renderer->info.num_texture_formats;
slouken@3169
  1770
                         it++) {
slouken@3169
  1771
                        if (renderer->info.texture_formats[it] ==
slouken@3169
  1772
                            sdl_alpha_pformats[apfmt]) {
slouken@3169
  1773
                            break;
slouken@3169
  1774
                        }
lestat@3166
  1775
                    }
lestat@3166
  1776
slouken@3169
  1777
                    if (it != renderer->info.num_texture_formats) {
slouken@3169
  1778
                        /* Compatible format has been found */
slouken@3169
  1779
                        break;
lestat@3166
  1780
                    }
lestat@3166
  1781
                    apfmt++;
lestat@3166
  1782
                }
lestat@3166
  1783
lestat@3166
  1784
                /* If compatible format can't be found, then return an error */
slouken@3169
  1785
                if (it == renderer->info.num_texture_formats) {
lestat@3166
  1786
                    SDL_SetError("Compatible pixel format can't be found");
lestat@3166
  1787
                    return 0;
lestat@3166
  1788
                }
lestat@3166
  1789
lestat@3166
  1790
                /* Convert found pixel format back to color masks */
slouken@3169
  1791
                if (SDL_PixelFormatEnumToMasks
slouken@3169
  1792
                    (renderer->info.texture_formats[it], &bpp, &Rmask, &Gmask,
slouken@3169
  1793
                     &Bmask, &Amask) != SDL_TRUE) {
lestat@3166
  1794
                    SDL_SetError("Unknown pixel format");
lestat@3166
  1795
                    return 0;
lestat@3166
  1796
                }
lestat@3166
  1797
            }
slouken@2753
  1798
        }
lestat@3166
  1799
slouken@2753
  1800
        format = SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
slouken@2753
  1801
        if (!format) {
slouken@2753
  1802
            SDL_SetError("Unknown pixel format");
slouken@2753
  1803
            return 0;
slouken@2753
  1804
        }
slouken@2753
  1805
    }
slouken@1895
  1806
slouken@2753
  1807
    textureID =
slouken@2753
  1808
        SDL_CreateTexture(format, SDL_TEXTUREACCESS_STATIC, surface->w,
slouken@2753
  1809
                          surface->h);
slouken@3057
  1810
    if (!textureID && !requested_format) {
slouken@3057
  1811
        SDL_DisplayMode desktop_mode;
slouken@3057
  1812
        SDL_GetDesktopDisplayMode(&desktop_mode);
slouken@3057
  1813
        format = desktop_mode.format;
slouken@3057
  1814
        textureID =
slouken@3057
  1815
            SDL_CreateTexture(format, SDL_TEXTUREACCESS_STATIC, surface->w,
slouken@3057
  1816
                              surface->h);
slouken@3057
  1817
    }
slouken@2753
  1818
    if (!textureID) {
slouken@2753
  1819
        return 0;
slouken@2753
  1820
    }
slouken@2753
  1821
    if (bpp == fmt->BitsPerPixel && Rmask == fmt->Rmask && Gmask == fmt->Gmask
slouken@2753
  1822
        && Bmask == fmt->Bmask && Amask == fmt->Amask) {
slouken@2753
  1823
        if (SDL_MUSTLOCK(surface)) {
slouken@3315
  1824
            SDL_LockSurface(surface);
slouken@2753
  1825
            SDL_UpdateTexture(textureID, NULL, surface->pixels,
slouken@2753
  1826
                              surface->pitch);
slouken@2753
  1827
            SDL_UnlockSurface(surface);
slouken@2753
  1828
        } else {
slouken@2753
  1829
            SDL_UpdateTexture(textureID, NULL, surface->pixels,
slouken@2753
  1830
                              surface->pitch);
slouken@2753
  1831
        }
slouken@2753
  1832
    } else {
slouken@2967
  1833
        SDL_PixelFormat dst_fmt;
slouken@2753
  1834
        SDL_Surface *dst = NULL;
slouken@1895
  1835
slouken@2753
  1836
        /* Set up a destination surface for the texture update */
slouken@2967
  1837
        SDL_InitFormat(&dst_fmt, bpp, Rmask, Gmask, Bmask, Amask);
slouken@2967
  1838
        if (SDL_ISPIXELFORMAT_INDEXED(format)) {
slouken@2967
  1839
            dst_fmt.palette =
slouken@2967
  1840
                SDL_AllocPalette((1 << SDL_BITSPERPIXEL(format)));
slouken@2967
  1841
            if (dst_fmt.palette) {
slouken@2967
  1842
                /*
slouken@2967
  1843
                 * FIXME: Should we try to copy
slouken@2967
  1844
                 * fmt->palette?
slouken@2967
  1845
                 */
slouken@2967
  1846
                SDL_DitherColors(dst_fmt.palette->colors,
slouken@2967
  1847
                                 SDL_BITSPERPIXEL(format));
slouken@2753
  1848
            }
slouken@2967
  1849
        }
slouken@2967
  1850
        dst = SDL_ConvertSurface(surface, &dst_fmt, 0);
slouken@2967
  1851
        if (dst) {
slouken@2967
  1852
            SDL_UpdateTexture(textureID, NULL, dst->pixels, dst->pitch);
slouken@2967
  1853
            SDL_FreeSurface(dst);
slouken@2967
  1854
        }
slouken@2967
  1855
        if (dst_fmt.palette) {
slouken@2967
  1856
            SDL_FreePalette(dst_fmt.palette);
slouken@2753
  1857
        }
slouken@2753
  1858
        if (!dst) {
slouken@2753
  1859
            SDL_DestroyTexture(textureID);
slouken@2753
  1860
            return 0;
slouken@2753
  1861
        }
slouken@2753
  1862
    }
slouken@2222
  1863
slouken@3053
  1864
    {
slouken@3053
  1865
        Uint8 r, g, b, a;
slouken@3053
  1866
        int blendMode;
slouken@3053
  1867
        int scaleMode;
slouken@3053
  1868
slouken@3053
  1869
        SDL_GetSurfaceColorMod(surface, &r, &g, &b);
slouken@3053
  1870
        SDL_SetTextureColorMod(textureID, r, g, b);
slouken@3053
  1871
slouken@3053
  1872
        SDL_GetSurfaceAlphaMod(surface, &a);
slouken@3053
  1873
        SDL_SetTextureAlphaMod(textureID, a);
slouken@3053
  1874
slouken@3053
  1875
        SDL_GetSurfaceBlendMode(surface, &blendMode);
slouken@3053
  1876
        SDL_SetTextureBlendMode(textureID, blendMode);
slouken@3053
  1877
slouken@3053
  1878
        SDL_GetSurfaceScaleMode(surface, &scaleMode);
slouken@3053
  1879
        SDL_SetTextureScaleMode(textureID, scaleMode);
slouken@3053
  1880
    }
slouken@3053
  1881
slouken@2753
  1882
    if (SDL_ISPIXELFORMAT_INDEXED(format) && fmt->palette) {
slouken@2753
  1883
        SDL_SetTexturePalette(textureID, fmt->palette->colors, 0,
slouken@2753
  1884
                              fmt->palette->ncolors);
slouken@2753
  1885
    }
slouken@2753
  1886
    return textureID;
slouken@1895
  1887
}
slouken@1895
  1888
slouken@1895
  1889
static __inline__ SDL_Texture *
slouken@1895
  1890
SDL_GetTextureFromID(SDL_TextureID textureID)
slouken@1895
  1891
{
slouken@2753
  1892
    int hash;
slouken@2753
  1893
    SDL_Texture *texture;
slouken@1895
  1894
slouken@2753
  1895
    if (!_this) {
slouken@2753
  1896
        return NULL;
slouken@2753
  1897
    }
slouken@2753
  1898
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  1899
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@2753
  1900
         texture = texture->next) {
slouken@2753
  1901
        if (texture->id == textureID) {
slouken@2753
  1902
            return texture;
slouken@2753
  1903
        }
slouken@2753
  1904
    }
slouken@2753
  1905
    return NULL;
slouken@1895
  1906
}
slouken@1895
  1907
slouken@1895
  1908
int
slouken@1895
  1909
SDL_QueryTexture(SDL_TextureID textureID, Uint32 * format, int *access,
slouken@2753
  1910
                 int *w, int *h)
slouken@1895
  1911
{
slouken@2753
  1912
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1895
  1913
slouken@2753
  1914
    if (!texture) {
slouken@2753
  1915
        return -1;
slouken@2753
  1916
    }
slouken@2753
  1917
    if (format) {
slouken@2753
  1918
        *format = texture->format;
slouken@2753
  1919
    }
slouken@2753
  1920
    if (access) {
slouken@2753
  1921
        *access = texture->access;
slouken@2753
  1922
    }
slouken@2753
  1923
    if (w) {
slouken@2753
  1924
        *w = texture->w;
slouken@2753
  1925
    }
slouken@2753
  1926
    if (h) {
slouken@2753
  1927
        *h = texture->h;
slouken@2753
  1928
    }
slouken@2753
  1929
    return 0;
slouken@1895
  1930
}
slouken@1895
  1931
slouken@1895
  1932
int
slouken@1895
  1933
SDL_QueryTexturePixels(SDL_TextureID textureID, void **pixels, int *pitch)
slouken@1895
  1934
{
slouken@2753
  1935
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1936
    SDL_Renderer *renderer;
slouken@1895
  1937
slouken@2753
  1938
    if (!texture) {
slouken@2753
  1939
        return -1;
slouken@2753
  1940
    }
slouken@2753
  1941
    renderer = texture->renderer;
slouken@2753
  1942
    if (!renderer->QueryTexturePixels) {
slouken@2810
  1943
        SDL_Unsupported();
slouken@2753
  1944
        return -1;
slouken@2753
  1945
    }
slouken@2753
  1946
    return renderer->QueryTexturePixels(renderer, texture, pixels, pitch);
slouken@1895
  1947
}
slouken@1895
  1948
slouken@1895
  1949
int
slouken@1895
  1950
SDL_SetTexturePalette(SDL_TextureID textureID, const SDL_Color * colors,
slouken@2753
  1951
                      int firstcolor, int ncolors)
slouken@1895
  1952
{
slouken@2753
  1953
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1954
    SDL_Renderer *renderer;
slouken@1895
  1955
slouken@2753
  1956
    if (!texture) {
slouken@2753
  1957
        return -1;
slouken@2753
  1958
    }
slouken@2753
  1959
    renderer = texture->renderer;
slouken@2753
  1960
    if (!renderer->SetTexturePalette) {
slouken@2810
  1961
        SDL_Unsupported();
slouken@2753
  1962
        return -1;
slouken@2753
  1963
    }
slouken@2753
  1964
    return renderer->SetTexturePalette(renderer, texture, colors, firstcolor,
slouken@2753
  1965
                                       ncolors);
slouken@1895
  1966
}
slouken@1895
  1967
slouken@1895
  1968
int
slouken@1895
  1969
SDL_GetTexturePalette(SDL_TextureID textureID, SDL_Color * colors,
slouken@2753
  1970
                      int firstcolor, int ncolors)
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->GetTexturePalette) {
slouken@2810
  1980
        SDL_Unsupported();
slouken@2753
  1981
        return -1;
slouken@2753
  1982
    }
slouken@2753
  1983
    return renderer->GetTexturePalette(renderer, texture, colors, firstcolor,
slouken@2753
  1984
                                       ncolors);
slouken@1895
  1985
}
slouken@1895
  1986
slouken@1895
  1987
int
slouken@1985
  1988
SDL_SetTextureColorMod(SDL_TextureID textureID, Uint8 r, Uint8 g, Uint8 b)
slouken@1985
  1989
{
slouken@2753
  1990
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  1991
    SDL_Renderer *renderer;
slouken@1985
  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->SetTextureColorMod) {
slouken@2810
  1998
        SDL_Unsupported();
slouken@2753
  1999
        return -1;
slouken@2753
  2000
    }
slouken@2753
  2001
    if (r < 255 || g < 255 || b < 255) {
slouken@2753
  2002
        texture->modMode |= SDL_TEXTUREMODULATE_COLOR;
slouken@2753
  2003
    } else {
slouken@2753
  2004
        texture->modMode &= ~SDL_TEXTUREMODULATE_COLOR;
slouken@2753
  2005
    }
slouken@2753
  2006
    texture->r = r;
slouken@2753
  2007
    texture->g = g;
slouken@2753
  2008
    texture->b = b;
slouken@2753
  2009
    return renderer->SetTextureColorMod(renderer, texture);
slouken@1985
  2010
}
slouken@1985
  2011
slouken@1985
  2012
int
slouken@1985
  2013
SDL_GetTextureColorMod(SDL_TextureID textureID, Uint8 * r, Uint8 * g,
slouken@2753
  2014
                       Uint8 * b)
slouken@1985
  2015
{
slouken@2753
  2016
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2017
    SDL_Renderer *renderer;
slouken@1985
  2018
slouken@2753
  2019
    if (!texture) {
slouken@2753
  2020
        return -1;
slouken@2753
  2021
    }
slouken@2753
  2022
    renderer = texture->renderer;
slouken@2753
  2023
    if (r) {
slouken@2753
  2024
        *r = texture->r;
slouken@2753
  2025
    }
slouken@2753
  2026
    if (g) {
slouken@2753
  2027
        *g = texture->g;
slouken@2753
  2028
    }
slouken@2753
  2029
    if (b) {
slouken@2753
  2030
        *b = texture->b;
slouken@2753
  2031
    }
slouken@2753
  2032
    return 0;
slouken@1985
  2033
}
slouken@1985
  2034
slouken@1985
  2035
int
slouken@1985
  2036
SDL_SetTextureAlphaMod(SDL_TextureID textureID, Uint8 alpha)
slouken@1985
  2037
{
slouken@2753
  2038
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2039
    SDL_Renderer *renderer;
slouken@1985
  2040
slouken@2753
  2041
    if (!texture) {
slouken@2753
  2042
        return -1;
slouken@2753
  2043
    }
slouken@2753
  2044
    renderer = texture->renderer;
slouken@2753
  2045
    if (!renderer->SetTextureAlphaMod) {
slouken@2810
  2046
        SDL_Unsupported();
slouken@2753
  2047
        return -1;
slouken@2753
  2048
    }
slouken@2753
  2049
    if (alpha < 255) {
slouken@2753
  2050
        texture->modMode |= SDL_TEXTUREMODULATE_ALPHA;
slouken@2753
  2051
    } else {
slouken@2753
  2052
        texture->modMode &= ~SDL_TEXTUREMODULATE_ALPHA;
slouken@2753
  2053
    }
slouken@2753
  2054
    texture->a = alpha;
slouken@2753
  2055
    return renderer->SetTextureAlphaMod(renderer, texture);
slouken@1985
  2056
}
slouken@1985
  2057
slouken@1985
  2058
int
slouken@1985
  2059
SDL_GetTextureAlphaMod(SDL_TextureID textureID, Uint8 * alpha)
slouken@1985
  2060
{
slouken@2753
  2061
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  2062
slouken@2753
  2063
    if (!texture) {
slouken@2753
  2064
        return -1;
slouken@2753
  2065
    }
slouken@2753
  2066
    if (alpha) {
slouken@2753
  2067
        *alpha = texture->a;
slouken@2753
  2068
    }
slouken@2753
  2069
    return 0;
slouken@1985
  2070
}
slouken@1985
  2071
slouken@1985
  2072
int
slouken@1985
  2073
SDL_SetTextureBlendMode(SDL_TextureID textureID, int blendMode)
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->SetTextureBlendMode) {
slouken@2810
  2083
        SDL_Unsupported();
slouken@2753
  2084
        return -1;
slouken@2753
  2085
    }
slouken@2753
  2086
    texture->blendMode = blendMode;
slouken@2753
  2087
    return renderer->SetTextureBlendMode(renderer, texture);
slouken@1985
  2088
}
slouken@1985
  2089
slouken@1985
  2090
int
slouken@1985
  2091
SDL_GetTextureBlendMode(SDL_TextureID textureID, int *blendMode)
slouken@1985
  2092
{
slouken@2753
  2093
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  2094
slouken@2753
  2095
    if (!texture) {
slouken@2753
  2096
        return -1;
slouken@2753
  2097
    }
slouken@2753
  2098
    if (blendMode) {
slouken@2753
  2099
        *blendMode = texture->blendMode;
slouken@2753
  2100
    }
slouken@2753
  2101
    return 0;
slouken@1985
  2102
}
slouken@1985
  2103
slouken@1985
  2104
int
slouken@1985
  2105
SDL_SetTextureScaleMode(SDL_TextureID textureID, int scaleMode)
slouken@1985
  2106
{
slouken@2753
  2107
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2108
    SDL_Renderer *renderer;
slouken@1985
  2109
slouken@2753
  2110
    if (!texture) {
slouken@2753
  2111
        return -1;
slouken@2753
  2112
    }
slouken@2753
  2113
    renderer = texture->renderer;
slouken@2753
  2114
    if (!renderer->SetTextureScaleMode) {
slouken@2810
  2115
        SDL_Unsupported();
slouken@2753
  2116
        return -1;
slouken@2753
  2117
    }
slouken@2753
  2118
    texture->scaleMode = scaleMode;
slouken@2753
  2119
    return renderer->SetTextureScaleMode(renderer, texture);
slouken@1985
  2120
}
slouken@1985
  2121
slouken@1985
  2122
int
slouken@1985
  2123
SDL_GetTextureScaleMode(SDL_TextureID textureID, int *scaleMode)
slouken@1985
  2124
{
slouken@2753
  2125
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@1985
  2126
slouken@2753
  2127
    if (!texture) {
slouken@2753
  2128
        return -1;
slouken@2753
  2129
    }
slouken@2753
  2130
    if (scaleMode) {
slouken@2753
  2131
        *scaleMode = texture->scaleMode;
slouken@2753
  2132
    }
slouken@2753
  2133
    return 0;
slouken@1985
  2134
}
slouken@1985
  2135
slouken@1985
  2136
int
slouken@1895
  2137
SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect * rect,
slouken@2753
  2138
                  const void *pixels, int pitch)
slouken@1895
  2139
{
slouken@2753
  2140
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2141
    SDL_Renderer *renderer;
slouken@2753
  2142
    SDL_Rect full_rect;
slouken@1895
  2143
slouken@2753
  2144
    if (!texture) {
slouken@2753
  2145
        return -1;
slouken@2753
  2146
    }
slouken@2753
  2147
    renderer = texture->renderer;
slouken@2753
  2148
    if (!renderer->UpdateTexture) {
slouken@2810
  2149
        SDL_Unsupported();
slouken@2753
  2150
        return -1;
slouken@2753
  2151
    }
slouken@2753
  2152
    if (!rect) {
slouken@2753
  2153
        full_rect.x = 0;
slouken@2753
  2154
        full_rect.y = 0;
slouken@2753
  2155
        full_rect.w = texture->w;
slouken@2753
  2156
        full_rect.h = texture->h;
slouken@2753
  2157
        rect = &full_rect;
slouken@2753
  2158
    }
slouken@2753
  2159
    return renderer->UpdateTexture(renderer, texture, rect, pixels, pitch);
slouken@1895
  2160
}
slouken@1895
  2161
slouken@1895
  2162
int
slouken@1895
  2163
SDL_LockTexture(SDL_TextureID textureID, const SDL_Rect * rect, int markDirty,
slouken@2753
  2164
                void **pixels, int *pitch)
slouken@1895
  2165
{
slouken@2753
  2166
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2167
    SDL_Renderer *renderer;
slouken@2753
  2168
    SDL_Rect full_rect;
slouken@1895
  2169
slouken@2753
  2170
    if (!texture) {
slouken@2753
  2171
        return -1;
slouken@2753
  2172
    }
slouken@2753
  2173
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  2174
        SDL_SetError("SDL_LockTexture(): texture must be streaming");
slouken@2753
  2175
        return -1;
slouken@2753
  2176
    }
slouken@2753
  2177
    renderer = texture->renderer;
slouken@2753
  2178
    if (!renderer->LockTexture) {
slouken@2810
  2179
        SDL_Unsupported();
slouken@2753
  2180
        return -1;
slouken@2753
  2181
    }
slouken@2753
  2182
    if (!rect) {
slouken@2753
  2183
        full_rect.x = 0;
slouken@2753
  2184
        full_rect.y = 0;
slouken@2753
  2185
        full_rect.w = texture->w;
slouken@2753
  2186
        full_rect.h = texture->h;
slouken@2753
  2187
        rect = &full_rect;
slouken@2753
  2188
    }
slouken@2753
  2189
    return renderer->LockTexture(renderer, texture, rect, markDirty, pixels,
slouken@2753
  2190
                                 pitch);
slouken@1895
  2191
}
slouken@1895
  2192
slouken@1895
  2193
void
slouken@1895
  2194
SDL_UnlockTexture(SDL_TextureID textureID)
slouken@1895
  2195
{
slouken@2753
  2196
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2197
    SDL_Renderer *renderer;
slouken@1895
  2198
slouken@2753
  2199
    if (!texture) {
slouken@2753
  2200
        return;
slouken@2753
  2201
    }
slouken@2753
  2202
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  2203
        return;
slouken@2753
  2204
    }
slouken@2753
  2205
    renderer = texture->renderer;
slouken@2753
  2206
    if (!renderer->UnlockTexture) {
slouken@2753
  2207
        return;
slouken@2753
  2208
    }
slouken@2753
  2209
    renderer->UnlockTexture(renderer, texture);
slouken@1895
  2210
}
slouken@1895
  2211
slouken@1895
  2212
void
slouken@1895
  2213
SDL_DirtyTexture(SDL_TextureID textureID, int numrects,
slouken@2753
  2214
                 const SDL_Rect * rects)
slouken@1895
  2215
{
slouken@2753
  2216
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2217
    SDL_Renderer *renderer;
slouken@1895
  2218
slouken@2753
  2219
    if (!texture) {
slouken@2753
  2220
        return;
slouken@2753
  2221
    }
slouken@2753
  2222
    if (texture->access != SDL_TEXTUREACCESS_STREAMING) {
slouken@2753
  2223
        return;
slouken@2753
  2224
    }
slouken@2753
  2225
    renderer = texture->renderer;
slouken@2753
  2226
    if (!renderer->DirtyTexture) {
slouken@2753
  2227
        return;
slouken@2753
  2228
    }
slouken@2753
  2229
    renderer->DirtyTexture(renderer, texture, numrects, rects);
slouken@1895
  2230
}
slouken@1895
  2231
slouken@1895
  2232
int
slouken@2884
  2233
SDL_SetRenderDrawColor(Uint8 r, Uint8 g, Uint8 b, Uint8 a)
slouken@2884
  2234
{
slouken@2884
  2235
    SDL_Renderer *renderer;
slouken@2884
  2236
slouken@2884
  2237
    if (!_this) {
slouken@2884
  2238
        SDL_UninitializedVideo();
slouken@2884
  2239
        return -1;
slouken@2884
  2240
    }
slouken@2884
  2241
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2242
    if (!renderer) {
slouken@2884
  2243
        return -1;
slouken@2884
  2244
    }
slouken@2884
  2245
    renderer->r = r;
slouken@2884
  2246
    renderer->g = g;
slouken@2884
  2247
    renderer->b = b;
slouken@2884
  2248
    renderer->a = a;
slouken@2927
  2249
    if (renderer->SetDrawColor) {
slouken@2927
  2250
        return renderer->SetDrawColor(renderer);
slouken@2927
  2251
    } else {
slouken@2927
  2252
        return 0;
slouken@2927
  2253
    }
slouken@2884
  2254
}
slouken@2884
  2255
slouken@2884
  2256
int
slouken@2885
  2257
SDL_GetRenderDrawColor(Uint8 * r, Uint8 * g, Uint8 * b, Uint8 * a)
slouken@2884
  2258
{
slouken@2884
  2259
    SDL_Renderer *renderer;
slouken@2884
  2260
slouken@2884
  2261
    if (!_this) {
slouken@2884
  2262
        SDL_UninitializedVideo();
slouken@2884
  2263
        return -1;
slouken@2884
  2264
    }
slouken@2884
  2265
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2266
    if (!renderer) {
slouken@2884
  2267
        return -1;
slouken@2884
  2268
    }
slouken@2884
  2269
    if (r) {
slouken@2884
  2270
        *r = renderer->r;
slouken@2884
  2271
    }
slouken@2884
  2272
    if (g) {
slouken@2884
  2273
        *g = renderer->g;
slouken@2884
  2274
    }
slouken@2884
  2275
    if (b) {
slouken@2884
  2276
        *b = renderer->b;
slouken@2884
  2277
    }
slouken@2884
  2278
    if (a) {
slouken@2884
  2279
        *a = renderer->a;
slouken@2884
  2280
    }
slouken@2928
  2281
    return 0;
slouken@2884
  2282
}
slouken@2884
  2283
slouken@2884
  2284
int
slouken@2884
  2285
SDL_SetRenderDrawBlendMode(int blendMode)
slouken@2884
  2286
{
slouken@2884
  2287
    SDL_Renderer *renderer;
slouken@2884
  2288
slouken@2884
  2289
    if (!_this) {
slouken@2884
  2290
        SDL_UninitializedVideo();
slouken@2884
  2291
        return -1;
slouken@2884
  2292
    }
slouken@2884
  2293
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2294
    if (!renderer) {
slouken@2884
  2295
        return -1;
slouken@2884
  2296
    }
slouken@2927
  2297
    renderer->blendMode = blendMode;
slouken@2927
  2298
    if (renderer->SetDrawBlendMode) {
slouken@2927
  2299
        return renderer->SetDrawBlendMode(renderer);
slouken@2927
  2300
    } else {
slouken@2927
  2301
        return 0;
slouken@2884
  2302
    }
slouken@2884
  2303
}
slouken@2884
  2304
slouken@2884
  2305
int
slouken@2884
  2306
SDL_GetRenderDrawBlendMode(int *blendMode)
slouken@2884
  2307
{
slouken@2884
  2308
    SDL_Renderer *renderer;
slouken@2884
  2309
slouken@2884
  2310
    if (!_this) {
slouken@2884
  2311
        SDL_UninitializedVideo();
slouken@2884
  2312
        return -1;
slouken@2884
  2313
    }
slouken@2884
  2314
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2884
  2315
    if (!renderer) {
slouken@2884
  2316
        return -1;
slouken@2884
  2317
    }
slouken@2884
  2318
    *blendMode = renderer->blendMode;
slouken@2884
  2319
    return 0;
slouken@2884
  2320
}
slouken@2884
  2321
slouken@2901
  2322
int
slouken@2901
  2323
SDL_RenderPoint(int x, int y)
slouken@2901
  2324
{
slouken@2901
  2325
    SDL_Renderer *renderer;
slouken@2901
  2326
    SDL_Window *window;
slouken@2901
  2327
slouken@2901
  2328
    if (!_this) {
slouken@2901
  2329
        SDL_UninitializedVideo();
slouken@2901
  2330
        return -1;
slouken@2901
  2331
    }
slouken@2901
  2332
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2901
  2333
    if (!renderer) {
slouken@2901
  2334
        return -1;
slouken@2901
  2335
    }
slouken@2901
  2336
    if (!renderer->RenderPoint) {
slouken@2901
  2337
        SDL_Unsupported();
slouken@2901
  2338
        return -1;
slouken@2901
  2339
    }
slouken@2901
  2340
    window = SDL_GetWindowFromID(renderer->window);
slouken@2901
  2341
    if (x < 0 || y < 0 || x >= window->w || y >= window->h) {
slouken@2901
  2342
        return 0;
slouken@2901
  2343
    }
slouken@2901
  2344
    return renderer->RenderPoint(renderer, x, y);
slouken@2901
  2345
}
slouken@2901
  2346
slouken@2901
  2347
int
slouken@2901
  2348
SDL_RenderLine(int x1, int y1, int x2, int y2)
slouken@2901
  2349
{
slouken@2901
  2350
    SDL_Renderer *renderer;
slouken@2901
  2351
    SDL_Window *window;
slouken@2901
  2352
    SDL_Rect real_rect;
slouken@2901
  2353
slouken@2901
  2354
    if (x1 == x2 && y1 == y2) {
slouken@2901
  2355
        return SDL_RenderPoint(x1, y1);
slouken@2901
  2356
    }
slouken@2901
  2357
slouken@2901
  2358
    if (!_this) {
slouken@2901
  2359
        SDL_UninitializedVideo();
slouken@2901
  2360
        return -1;
slouken@2901
  2361
    }
slouken@2901
  2362
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2901
  2363
    if (!renderer) {
slouken@2901
  2364
        return -1;
slouken@2901
  2365
    }
slouken@2901
  2366
    if (!renderer->RenderLine) {
slouken@2901
  2367
        SDL_Unsupported();
slouken@2901
  2368
        return -1;
slouken@2901
  2369
    }
slouken@2901
  2370
    window = SDL_GetWindowFromID(renderer->window);
slouken@2909
  2371
slouken@2901
  2372
    real_rect.x = 0;
slouken@2901
  2373
    real_rect.y = 0;
slouken@2901
  2374
    real_rect.w = window->w;
slouken@2901
  2375
    real_rect.h = window->h;
slouken@2910
  2376
    if (!SDL_IntersectRectAndLine(&real_rect, &x1, &y1, &x2, &y2)) {
slouken@2909
  2377
        return (0);
slouken@2901
  2378
    }
slouken@2901
  2379
    return renderer->RenderLine(renderer, x1, y1, x2, y2);
slouken@2901
  2380
}
slouken@2884
  2381
slouken@2884
  2382
int
slouken@2884
  2383
SDL_RenderFill(const SDL_Rect * rect)
slouken@1895
  2384
{
slouken@2753
  2385
    SDL_Renderer *renderer;
slouken@2753
  2386
    SDL_Window *window;
slouken@2753
  2387
    SDL_Rect real_rect;
slouken@1895
  2388
slouken@2753
  2389
    if (!_this) {
slouken@2753
  2390
        SDL_UninitializedVideo();
slouken@2753
  2391
        return -1;
slouken@2753
  2392
    }
slouken@2753
  2393
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2810
  2394
    if (!renderer) {
slouken@2810
  2395
        return -1;
slouken@2810
  2396
    }
slouken@2814
  2397
    if (!renderer->RenderFill) {
slouken@2810
  2398
        SDL_Unsupported();
slouken@2753
  2399
        return -1;
slouken@2753
  2400
    }
slouken@2753
  2401
    window = SDL_GetWindowFromID(renderer->window);
slouken@2908
  2402
slouken@2753
  2403
    real_rect.x = 0;
slouken@2753
  2404
    real_rect.y = 0;
slouken@2753
  2405
    real_rect.w = window->w;
slouken@2753
  2406
    real_rect.h = window->h;
slouken@2753
  2407
    if (rect) {
slouken@2753
  2408
        if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
slouken@2753
  2409
            return 0;
slouken@2753
  2410
        }
slouken@2753
  2411
    }
slouken@2884
  2412
    return renderer->RenderFill(renderer, &real_rect);
slouken@2884
  2413
}
slouken@2884
  2414
slouken@2884
  2415
int
slouken@1895
  2416
SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect * srcrect,
slouken@2753
  2417
               const SDL_Rect * dstrect)
slouken@1895
  2418
{
slouken@2753
  2419
    SDL_Texture *texture = SDL_GetTextureFromID(textureID);
slouken@2753
  2420
    SDL_Renderer *renderer;
slouken@2753
  2421
    SDL_Window *window;
slouken@2753
  2422
    SDL_Rect real_srcrect;
slouken@2753
  2423
    SDL_Rect real_dstrect;
slouken@1895
  2424
slouken@3316
  2425
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@3316
  2426
    if (!renderer) {
slouken@3316
  2427
        SDL_SetError("No current renderer available");
slouken@2753
  2428
        return -1;
slouken@2753
  2429
    }
slouken@3316
  2430
    if (!texture) {
slouken@3316
  2431
        SDL_SetError("Texture not found");
slouken@3316
  2432
        return -1;
slouken@3316
  2433
    }
slouken@3316
  2434
    if (texture->renderer != renderer) {
slouken@3316
  2435
        SDL_SetError("Texture was not created with this renderer");
slouken@2810
  2436
        return -1;
slouken@2810
  2437
    }
slouken@2810
  2438
    if (!renderer->RenderCopy) {
slouken@2810
  2439
        SDL_Unsupported();
slouken@2753
  2440
        return -1;
slouken@2753
  2441
    }
slouken@2753
  2442
    window = SDL_GetWindowFromID(renderer->window);
slouken@2908
  2443
slouken@2908
  2444
    real_srcrect.x = 0;
slouken@2908
  2445
    real_srcrect.y = 0;
slouken@2908
  2446
    real_srcrect.w = texture->w;
slouken@2908
  2447
    real_srcrect.h = texture->h;
slouken@2753
  2448
    if (srcrect) {
slouken@2908
  2449
        if (!SDL_IntersectRect(srcrect, &real_srcrect, &real_srcrect)) {
slouken@2908
  2450
            return 0;
slouken@2908
  2451
        }
slouken@2753
  2452
    }
slouken@2908
  2453
slouken@2908
  2454
    real_dstrect.x = 0;
slouken@2908
  2455
    real_dstrect.y = 0;
slouken@2908
  2456
    real_dstrect.w = window->w;
slouken@2908
  2457
    real_dstrect.h = window->h;
slouken@2753
  2458
    if (dstrect) {
slouken@2908
  2459
        if (!SDL_IntersectRect(dstrect, &real_dstrect, &real_dstrect)) {
slouken@2908
  2460
            return 0;
slouken@2908
  2461
        }
slouken@2912
  2462
        /* Clip srcrect by the same amount as dstrect was clipped */
slouken@2912
  2463
        if (dstrect->w != real_dstrect.w) {
slouken@2912
  2464
            int deltax = (real_dstrect.x - dstrect->x);
slouken@2912
  2465
            int deltaw = (real_dstrect.w - dstrect->w);
slouken@3333
  2466
            real_srcrect.x += (deltax * real_srcrect.w) / dstrect->w;
slouken@3333
  2467
            real_srcrect.w += (deltaw * real_srcrect.w) / dstrect->w;
slouken@2912
  2468
        }
slouken@2912
  2469
        if (dstrect->h != real_dstrect.h) {
slouken@2912
  2470
            int deltay = (real_dstrect.y - dstrect->y);
slouken@2912
  2471
            int deltah = (real_dstrect.h - dstrect->h);
slouken@3333
  2472
            real_srcrect.y += (deltay * real_srcrect.h) / dstrect->h;
slouken@3333
  2473
            real_srcrect.h += (deltah * real_srcrect.h) / dstrect->h;
slouken@2912
  2474
        }
slouken@2753
  2475
    }
slouken@1895
  2476
slouken@2753
  2477
    return renderer->RenderCopy(renderer, texture, &real_srcrect,
slouken@2753
  2478
                                &real_dstrect);
slouken@1895
  2479
}
slouken@1895
  2480
slouken@1895
  2481
void
slouken@1895
  2482
SDL_RenderPresent(void)
slouken@1895
  2483
{
slouken@2753
  2484
    SDL_Renderer *renderer;
slouken@1895
  2485
slouken@2753
  2486
    if (!_this) {
slouken@2753
  2487
        SDL_UninitializedVideo();
slouken@2753
  2488
        return;
slouken@2753
  2489
    }
slouken@2753
  2490
    renderer = SDL_CurrentDisplay.current_renderer;
slouken@2753
  2491
    if (!renderer || !renderer->RenderPresent) {
slouken@2753
  2492
        return;
slouken@2753
  2493
    }
slouken@2753
  2494
    renderer->RenderPresent(renderer);
slouken@1895
  2495
}
slouken@1895
  2496
slouken@1895
  2497
void
slouken@1895
  2498
SDL_DestroyTexture(SDL_TextureID textureID)
slouken@1895
  2499
{
slouken@2753
  2500
    int hash;
slouken@2753
  2501
    SDL_Texture *prev, *texture;
slouken@2753
  2502
    SDL_Renderer *renderer;
slouken@1895
  2503
slouken@2753
  2504
    if (!_this) {
slouken@2753
  2505
        SDL_UninitializedVideo();
slouken@2753
  2506
        return;
slouken@2753
  2507
    }
slouken@2753
  2508
    /* Look up the texture in the hash table */
slouken@2753
  2509
    hash = (textureID % SDL_arraysize(SDL_CurrentDisplay.textures));
slouken@2753
  2510
    prev = NULL;
slouken@2753
  2511
    for (texture = SDL_CurrentDisplay.textures[hash]; texture;
slouken@2753
  2512
         prev = texture, texture = texture->next) {
slouken@2753
  2513
        if (texture->id == textureID) {
slouken@2753
  2514
            break;
slouken@2753
  2515
        }
slouken@2753
  2516
    }
slouken@2753
  2517
    if (!texture) {
slouken@2753
  2518
        return;
slouken@2753
  2519
    }
slouken@2753
  2520
    /* Unlink the texture from the list */
slouken@2753
  2521
    if (prev) {
slouken@2753
  2522
        prev->next = texture->next;
slouken@2753
  2523
    } else {
slouken@2753
  2524
        SDL_CurrentDisplay.textures[hash] = texture->next;
slouken@2753
  2525
    }
slouken@1895
  2526
slouken@2753
  2527
    /* Free the texture */
slouken@2753
  2528
    renderer = texture->renderer;
slouken@2753
  2529
    renderer->DestroyTexture(renderer, texture);
slouken@2753
  2530
    SDL_free(texture);
slouken@1895
  2531
}
slouken@1895
  2532
slouken@1895
  2533
void
slouken@1895
  2534
SDL_DestroyRenderer(SDL_WindowID windowID)
slouken@1895
  2535
{
slouken@2753
  2536
    SDL_Window *window = SDL_GetWindowFromID(windowID);
slouken@2753
  2537
    SDL_Renderer *renderer;
slouken@2753
  2538
    int i;
slouken@1895
  2539
slouken@2753
  2540
    if (!window) {
slouken@2753
  2541
        return;
slouken@2753
  2542
    }
slouken@2753
  2543
    renderer = window->renderer;
slouken@2753
  2544
    if (!renderer) {
slouken@2753
  2545
        return;
slouken@2753
  2546
    }
slouken@2753
  2547
    /* Free existing textures for this renderer */
slouken@2753
  2548
    for (i = 0; i < SDL_arraysize(SDL_CurrentDisplay.textures); ++i) {
slouken@2753
  2549
        SDL_Texture *texture;
slouken@2753
  2550
        SDL_Texture *prev = NULL;
slouken@2753
  2551
        SDL_Texture *next;
slouken@2753
  2552
        for (texture = SDL_CurrentDisplay.textures[i]; texture;
slouken@2753
  2553
             texture = next) {
slouken@2753
  2554
            next = texture->next;
slouken@2753
  2555
            if (texture->renderer == renderer) {
slouken@2753
  2556
                if (prev) {
slouken@2753
  2557
                    prev->next = next;
slouken@2753
  2558
                } else {
slouken@2753
  2559
                    SDL_CurrentDisplay.textures[i] = next;
slouken@2753
  2560
                }
slouken@2753
  2561
                renderer->DestroyTexture(renderer, texture);
slouken@2753
  2562
                SDL_free(texture);
slouken@2753
  2563
            } else {
slouken@2753
  2564
                prev = texture;
slouken@2753
  2565
            }
slouken@2753
  2566
        }
slouken@2753
  2567
    }
slouken@1895
  2568
slouken@2753
  2569
    /* Free the renderer instance */
slouken@2753
  2570
    renderer->DestroyRenderer(renderer);
slouken@1895
  2571
slouken@2753
  2572
    /* Clear references */
slouken@2753
  2573
    window->renderer = NULL;
slouken@2753
  2574
    if (SDL_CurrentDisplay.current_renderer == renderer) {
slouken@2753
  2575
        SDL_CurrentDisplay.current_renderer = NULL;
slouken@2753
  2576
    }
slouken@1895
  2577
}
slouken@1895
  2578
slouken@3025
  2579
SDL_bool
slouken@3025
  2580
SDL_IsScreenSaverEnabled()
slouken@3025
  2581
{
slouken@3025
  2582
    if (!_this) {
slouken@3025
  2583
        return SDL_TRUE;
slouken@3025
  2584
    }
slouken@3025
  2585
    return _this->suspend_screensaver ? SDL_FALSE : SDL_TRUE;
slouken@3025
  2586
}
slouken@3025
  2587
slouken@3025
  2588
void
slouken@3025
  2589
SDL_EnableScreenSaver()
slouken@3025
  2590
{
slouken@3025
  2591
    if (!_this) {
slouken@3025
  2592
        return;
slouken@3025
  2593
    }
slouken@3025
  2594
    if (!_this->suspend_screensaver) {
slouken@3025
  2595
        return;
slouken@3025
  2596
    }
slouken@3025
  2597
    _this->suspend_screensaver = SDL_FALSE;
slouken@3025
  2598
    if (_this->SuspendScreenSaver) {
slouken@3025
  2599
        _this->SuspendScreenSaver(_this);
slouken@3025
  2600
    }
slouken@3025
  2601
}
slouken@3025
  2602
slouken@3025
  2603
void
slouken@3025
  2604
SDL_DisableScreenSaver()
slouken@3025
  2605
{
slouken@3025
  2606
    if (!_this) {
slouken@3025
  2607
        return;
slouken@3025
  2608
    }
slouken@3025
  2609
    if (_this->suspend_screensaver) {
slouken@3025
  2610
        return;
slouken@3025
  2611
    }
slouken@3025
  2612
    _this->suspend_screensaver = SDL_TRUE;
slouken@3025
  2613
    if (_this->SuspendScreenSaver) {
slouken@3025
  2614
        _this->SuspendScreenSaver(_this);
slouken@3025
  2615
    }
slouken@3025
  2616
}
slouken@3025
  2617
slouken@1895
  2618
void
slouken@1895
  2619
SDL_VideoQuit(void)
slouken@1895
  2620
{
slouken@2753
  2621
    int i, j;
slouken@1895
  2622
slouken@2753
  2623
    if (!_this) {
slouken@2753
  2624
        return;
slouken@2753
  2625
    }
slouken@2753
  2626
    /* Halt event processing before doing anything else */
slouken@2753
  2627
    SDL_StopEventLoop();
slouken@3029
  2628
    SDL_EnableScreenSaver();
slouken@1895
  2629
slouken@2753
  2630
    /* Clean up the system video */
slouken@2753
  2631
    for (i = _this->num_displays; i--;) {
slouken@2753
  2632
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2633
        for (j = display->num_windows; j--;) {
slouken@2753
  2634
            SDL_DestroyWindow(display->windows[i].id);
slouken@2753
  2635
        }
slouken@2753
  2636
        if (display->windows) {
slouken@2753
  2637
            SDL_free(display->windows);
slouken@2753
  2638
            display->windows = NULL;
slouken@2753
  2639
        }
slouken@2753
  2640
        display->num_windows = 0;
slouken@2753
  2641
        if (display->render_drivers) {
slouken@2753
  2642
            SDL_free(display->render_drivers);
slouken@2753
  2643
            display->render_drivers = NULL;
slouken@2753
  2644
        }
slouken@2753
  2645
        display->num_render_drivers = 0;
slouken@2753
  2646
    }
slouken@2753
  2647
    _this->VideoQuit(_this);
slouken@1895
  2648
slouken@2753
  2649
    for (i = _this->num_displays; i--;) {
slouken@2753
  2650
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2651
        for (j = display->num_display_modes; j--;) {
slouken@2753
  2652
            if (display->display_modes[j].driverdata) {
slouken@2753
  2653
                SDL_free(display->display_modes[j].driverdata);
slouken@2753
  2654
                display->display_modes[j].driverdata = NULL;
slouken@2753
  2655
            }
slouken@2753
  2656
        }
slouken@2753
  2657
        if (display->display_modes) {
slouken@2753
  2658
            SDL_free(display->display_modes);
slouken@2753
  2659
            display->display_modes = NULL;
slouken@2753
  2660
        }
slouken@2753
  2661
        if (display->desktop_mode.driverdata) {
slouken@2753
  2662
            SDL_free(display->desktop_mode.driverdata);
slouken@2753
  2663
            display->desktop_mode.driverdata = NULL;
slouken@2753
  2664
        }
slouken@2753
  2665
        if (display->palette) {
slouken@2753
  2666
            SDL_FreePalette(display->palette);
slouken@2753
  2667
            display->palette = NULL;
slouken@2753
  2668
        }
slouken@2753
  2669
        if (display->gamma) {
slouken@2753
  2670
            SDL_free(display->gamma);
slouken@2753
  2671
            display->gamma = NULL;
slouken@2753
  2672
        }
slouken@2753
  2673
        if (display->driverdata) {
slouken@2753
  2674
            SDL_free(display->driverdata);
slouken@2753
  2675
            display->driverdata = NULL;
slouken@2753
  2676
        }
slouken@2753
  2677
    }
slouken@2753
  2678
    if (_this->displays) {
slouken@2753
  2679
        SDL_free(_this->displays);
slouken@2753
  2680
        _this->displays = NULL;
slouken@2753
  2681
    }
slouken@2753
  2682
    _this->free(_this);
slouken@2753
  2683
    _this = NULL;
slouken@0
  2684
}
slouken@0
  2685
slouken@1895
  2686
int
slouken@1895
  2687
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2688
{
slouken@2753
  2689
    int retval;
slouken@0
  2690
slouken@2753
  2691
    if (!_this) {
slouken@2753
  2692
        SDL_UninitializedVideo();
slouken@2753
  2693
        return -1;
slouken@2753
  2694
    }
slouken@3057
  2695
    if (_this->gl_config.driver_loaded) {
slouken@3057
  2696
        if (path && SDL_strcmp(path, _this->gl_config.driver_path) != 0) {
slouken@3057
  2697
            SDL_SetError("OpenGL library already loaded");
slouken@3057
  2698
            return -1;
slouken@3057
  2699
        }
slouken@3057
  2700
        retval = 0;
slouken@3057
  2701
    } else {
slouken@3057
  2702
        if (!_this->GL_LoadLibrary) {
slouken@3057
  2703
            SDL_SetError("No dynamic GL support in video driver");
slouken@3057
  2704
            return -1;
slouken@3057
  2705
        }
slouken@2753
  2706
        retval = _this->GL_LoadLibrary(_this, path);
slouken@3057
  2707
    }
slouken@3057
  2708
    if (retval == 0) {
slouken@3057
  2709
        ++_this->gl_config.driver_loaded;
slouken@2753
  2710
    }
slouken@2753
  2711
    return (retval);
slouken@0
  2712
}
slouken@0
  2713
slouken@2753
  2714
void *
slouken@1895
  2715
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2716
{
slouken@2753
  2717
    void *func;
slouken@0
  2718
slouken@2753
  2719
    if (!_this) {
slouken@2753
  2720
        SDL_UninitializedVideo();
slouken@2753
  2721
        return NULL;
slouken@2753
  2722
    }
slouken@2753
  2723
    func = NULL;
slouken@2753
  2724
    if (_this->GL_GetProcAddress) {
slouken@2753
  2725
        if (_this->gl_config.driver_loaded) {
slouken@2753
  2726
            func = _this->GL_GetProcAddress(_this, proc);
slouken@2753
  2727
        } else {
slouken@2753
  2728
            SDL_SetError("No GL driver has been loaded");
slouken@2753
  2729
        }
slouken@2753
  2730
    } else {
slouken@2753
  2731
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2732
    }
slouken@2753
  2733
    return func;
slouken@0
  2734
}
slouken@0
  2735
slouken@3057
  2736
void
slouken@3057
  2737
SDL_GL_UnloadLibrary(void)
slouken@3057
  2738
{
slouken@3057
  2739
    if (!_this) {
slouken@3057
  2740
        SDL_UninitializedVideo();
slouken@3057
  2741
        return;
slouken@3057
  2742
    }
slouken@3057
  2743
    if (_this->gl_config.driver_loaded > 0) {
slouken@3057
  2744
        if (--_this->gl_config.driver_loaded > 0) {
slouken@3057
  2745
            return;
slouken@3057
  2746
        }
slouken@3057
  2747
        if (_this->GL_UnloadLibrary) {
slouken@3057
  2748
            _this->GL_UnloadLibrary(_this);
slouken@3057
  2749
        }
slouken@3057
  2750
    }
slouken@3057
  2751
}
slouken@3057
  2752
slouken@1926
  2753
SDL_bool
slouken@1926
  2754
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2755
{
hfutrell@2745
  2756
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2757
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@2753
  2758
    const char *extensions;
slouken@2753
  2759
    const char *start;
slouken@2753
  2760
    const char *where, *terminator;
slouken@1926
  2761
slouken@2753
  2762
    /* Extension names should not have spaces. */
slouken@2753
  2763
    where = SDL_strchr(extension, ' ');
slouken@2753
  2764
    if (where || *extension == '\0') {
slouken@2753
  2765
        return SDL_FALSE;
slouken@2753
  2766
    }
slouken@2753
  2767
    /* See if there's an environment variable override */
slouken@2753
  2768
    start = SDL_getenv(extension);
slouken@2753
  2769
    if (start && *start == '0') {
slouken@2753
  2770
        return SDL_FALSE;
slouken@2753
  2771
    }
slouken@2753
  2772
    /* Lookup the available extensions */
slouken@2753
  2773
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@2753
  2774
    if (glGetStringFunc) {
slouken@2753
  2775
        extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@2753
  2776
    } else {
slouken@2753
  2777
        extensions = NULL;
slouken@2753
  2778
    }
slouken@2753
  2779
    if (!extensions) {
slouken@2753
  2780
        return SDL_FALSE;
slouken@2753
  2781
    }
slouken@2753
  2782
    /*
slouken@2753
  2783
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@2753
  2784
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@2753
  2785
     */
slouken@1926
  2786
slouken@2753
  2787
    start = extensions;
slouken@1926
  2788
slouken@2753
  2789
    for (;;) {
slouken@2753
  2790
        where = SDL_strstr(start, extension);
slouken@2753
  2791
        if (!where)
slouken@2753
  2792
            break;
slouken@1926
  2793
slouken@2753
  2794
        terminator = where + SDL_strlen(extension);
slouken@2753
  2795
        if (where == start || *(where - 1) == ' ')
slouken@2753
  2796
            if (*terminator == ' ' || *terminator == '\0')
slouken@2753
  2797
                return SDL_TRUE;
slouken@1926
  2798
slouken@2753
  2799
        start = terminator;
slouken@2753
  2800
    }
slouken@2753
  2801
    return SDL_FALSE;
slouken@1926
  2802
#else
slouken@2753
  2803
    return SDL_FALSE;
slouken@1926
  2804
#endif
slouken@1926
  2805
}
slouken@1926
  2806
slouken@1895
  2807
int
slouken@1895
  2808
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2809
{
hfutrell@2745
  2810
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES
slouken@2753
  2811
    int retval;
slouken@0
  2812
slouken@2753
  2813
    if (!_this) {
slouken@2753
  2814
        SDL_UninitializedVideo();
slouken@2753
  2815
        return -1;
slouken@2753
  2816
    }
slouken@2753
  2817
    retval = 0;
slouken@2753
  2818
    switch (attr) {
slouken@2753
  2819
    case SDL_GL_RED_SIZE:
slouken@2753
  2820
        _this->gl_config.red_size = value;
slouken@2753
  2821
        break;
slouken@2753
  2822
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2823
        _this->gl_config.green_size = value;
slouken@2753
  2824
        break;
slouken@2753
  2825
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2826
        _this->gl_config.blue_size = value;
slouken@2753
  2827
        break;
slouken@2753
  2828
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2829
        _this->gl_config.alpha_size = value;
slouken@2753
  2830
        break;
slouken@2753
  2831
    case SDL_GL_DOUBLEBUFFER:
slouken@2753
  2832
        _this->gl_config.double_buffer = value;
slouken@2753
  2833
        break;
slouken@2753
  2834
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2835
        _this->gl_config.buffer_size = value;
slouken@2753
  2836
        break;
slouken@2753
  2837
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2838
        _this->gl_config.depth_size = value;
slouken@2753
  2839
        break;
slouken@2753
  2840
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2841
        _this->gl_config.stencil_size = value;
slouken@2753
  2842
        break;
slouken@2753
  2843
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2844
        _this->gl_config.accum_red_size = value;
slouken@2753
  2845
        break;
slouken@2753
  2846
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2847
        _this->gl_config.accum_green_size = value;
slouken@2753
  2848
        break;
slouken@2753
  2849
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2850
        _this->gl_config.accum_blue_size = value;
slouken@2753
  2851
        break;
slouken@2753
  2852
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2853
        _this->gl_config.accum_alpha_size = value;
slouken@2753
  2854
        break;
slouken@2753
  2855
    case SDL_GL_STEREO:
slouken@2753
  2856
        _this->gl_config.stereo = value;
slouken@2753
  2857
        break;
slouken@2753
  2858
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@2753
  2859
        _this->gl_config.multisamplebuffers = value;
slouken@2753
  2860
        break;
slouken@2753
  2861
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@2753
  2862
        _this->gl_config.multisamplesamples = value;
slouken@2753
  2863
        break;
slouken@2753
  2864
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2865
        _this->gl_config.accelerated = value;
slouken@2753
  2866
        break;
slouken@2753
  2867
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2868
        _this->gl_config.retained_backing = value;
slouken@2753
  2869
        break;
slouken@3100
  2870
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@3100
  2871
        _this->gl_config.major_version = value;
slouken@3100
  2872
        break;