SDL_x11modes.c
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"
#if SDL_VIDEO_DRIVER_X11
#include "SDL_hints.h"
#include "SDL_x11video.h"
#include "SDL_timer.h"
#include "edid.h"
/* #define X11MODES_DEBUG */
/* I'm becoming more and more convinced that the application should never
* use XRandR, and it's the window manager's responsibility to track and
* manage display modes for fullscreen windows. Right now XRandR is completely
* broken with respect to window manager behavior on every window manager that
* I can find. For example, on Unity 3D if you show a fullscreen window while
* the resolution is changing (within ~250 ms) your window will retain the
* fullscreen state hint but be decorated and windowed.
*
* However, many people swear by it, so let them swear at it. :)
*/
/* #define XRANDR_DISABLED_BY_DEFAULT */
static int
get_visualinfo(Display * display, int screen, XVisualInfo * vinfo)
{
const char *visual_id = SDL_getenv("SDL_VIDEO_X11_VISUALID");
int depth;
/* Look for an exact visual, if requested */
if (visual_id) {
XVisualInfo *vi, template;
int nvis;
SDL_zero(template);
template.visualid = SDL_strtol(visual_id, NULL, 0);
vi = X11_XGetVisualInfo(display, VisualIDMask, &template, &nvis);
if (vi) {
*vinfo = *vi;
X11_XFree(vi);
return 0;
}
}
depth = DefaultDepth(display, screen);
if ((X11_UseDirectColorVisuals() &&
X11_XMatchVisualInfo(display, screen, depth, DirectColor, vinfo)) ||
X11_XMatchVisualInfo(display, screen, depth, TrueColor, vinfo) ||
X11_XMatchVisualInfo(display, screen, depth, PseudoColor, vinfo) ||
X11_XMatchVisualInfo(display, screen, depth, StaticColor, vinfo)) {
return 0;
}
return -1;
}
int
X11_GetVisualInfoFromVisual(Display * display, Visual * visual, XVisualInfo * vinfo)
{
XVisualInfo *vi;
int nvis;
vinfo->visualid = X11_XVisualIDFromVisual(visual);
vi = X11_XGetVisualInfo(display, VisualIDMask, vinfo, &nvis);
if (vi) {
*vinfo = *vi;
X11_XFree(vi);
return 0;
}
return -1;
}
Uint32
X11_GetPixelFormatFromVisualInfo(Display * display, XVisualInfo * vinfo)
{
if (vinfo->class == DirectColor || vinfo->class == TrueColor) {
int bpp;
Uint32 Rmask, Gmask, Bmask, Amask;
Rmask = vinfo->visual->red_mask;
Gmask = vinfo->visual->green_mask;
Bmask = vinfo->visual->blue_mask;
if (vinfo->depth == 32) {
Amask = (0xFFFFFFFF & ~(Rmask | Gmask | Bmask));
} else {
Amask = 0;
}
bpp = vinfo->depth;
if (bpp == 24) {
int i, n;
XPixmapFormatValues *p = X11_XListPixmapFormats(display, &n);
if (p) {
for (i = 0; i < n; ++i) {
if (p[i].depth == 24) {
bpp = p[i].bits_per_pixel;
break;
}
}
X11_XFree(p);
}
}
return SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
}
if (vinfo->class == PseudoColor || vinfo->class == StaticColor) {
switch (vinfo->depth) {
case 8:
return SDL_PIXELTYPE_INDEX8;
case 4:
if (BitmapBitOrder(display) == LSBFirst) {
return SDL_PIXELFORMAT_INDEX4LSB;
} else {
return SDL_PIXELFORMAT_INDEX4MSB;
}
break;
case 1:
if (BitmapBitOrder(display) == LSBFirst) {
return SDL_PIXELFORMAT_INDEX1LSB;
} else {
return SDL_PIXELFORMAT_INDEX1MSB;
}
break;
}
}
return SDL_PIXELFORMAT_UNKNOWN;
}
/* Global for the error handler */
int vm_event, vm_error = -1;
#if SDL_VIDEO_DRIVER_X11_XINERAMA
static SDL_bool
CheckXinerama(Display * display, int *major, int *minor)
{
int event_base = 0;
int error_base = 0;
const char *env;
/* Default the extension not available */
*major = *minor = 0;
/* Allow environment override */
env = SDL_GetHint(SDL_HINT_VIDEO_X11_XINERAMA);
if (env && !SDL_atoi(env)) {
#ifdef X11MODES_DEBUG
printf("Xinerama disabled due to hint\n");
#endif
return SDL_FALSE;
}
if (!SDL_X11_HAVE_XINERAMA) {
#ifdef X11MODES_DEBUG
printf("Xinerama support not available\n");
#endif
return SDL_FALSE;
}
/* Query the extension version */
if (!X11_XineramaQueryExtension(display, &event_base, &error_base) ||
!X11_XineramaQueryVersion(display, major, minor) ||
!X11_XineramaIsActive(display)) {
#ifdef X11MODES_DEBUG
printf("Xinerama not active on the display\n");
#endif
return SDL_FALSE;
}
#ifdef X11MODES_DEBUG
printf("Xinerama available at version %d.%d!\n", *major, *minor);
#endif
return SDL_TRUE;
}
/* !!! FIXME: remove this later. */
/* we have a weird bug where XineramaQueryScreens() throws an X error, so this
is here to help track it down (and not crash, too!). */
static SDL_bool xinerama_triggered_error = SDL_FALSE;
static int
X11_XineramaFailed(Display * d, XErrorEvent * e)
{
xinerama_triggered_error = SDL_TRUE;
fprintf(stderr, "XINERAMA X ERROR: type=%d serial=%lu err=%u req=%u minor=%u\n",
e->type, e->serial, (unsigned int) e->error_code,
(unsigned int) e->request_code, (unsigned int) e->minor_code);
fflush(stderr);
return 0;
}
#endif /* SDL_VIDEO_DRIVER_X11_XINERAMA */
#if SDL_VIDEO_DRIVER_X11_XRANDR
static SDL_bool
CheckXRandR(Display * display, int *major, int *minor)
{
const char *env;
/* Default the extension not available */
*major = *minor = 0;
/* Allow environment override */
env = SDL_GetHint(SDL_HINT_VIDEO_X11_XRANDR);
#ifdef XRANDR_DISABLED_BY_DEFAULT
if (!env || !SDL_atoi(env)) {
#ifdef X11MODES_DEBUG
printf("XRandR disabled by default due to window manager issues\n");
#endif
return SDL_FALSE;
}
#else
if (env && !SDL_atoi(env)) {
#ifdef X11MODES_DEBUG
printf("XRandR disabled due to hint\n");
#endif
return SDL_FALSE;
}
#endif /* XRANDR_ENABLED_BY_DEFAULT */
if (!SDL_X11_HAVE_XRANDR) {
#ifdef X11MODES_DEBUG
printf("XRandR support not available\n");
#endif
return SDL_FALSE;
}
/* Query the extension version */
*major = 1; *minor = 3; /* we want 1.3 */
if (!X11_XRRQueryVersion(display, major, minor)) {
#ifdef X11MODES_DEBUG
printf("XRandR not active on the display\n");
#endif
*major = *minor = 0;
return SDL_FALSE;
}
#ifdef X11MODES_DEBUG
printf("XRandR available at version %d.%d!\n", *major, *minor);
#endif
return SDL_TRUE;
}
#define XRANDR_ROTATION_LEFT (1 << 1)
#define XRANDR_ROTATION_RIGHT (1 << 3)
static int
CalculateXRandRRefreshRate(const XRRModeInfo *info)
{
return (info->hTotal
&& info->vTotal) ? (info->dotClock / (info->hTotal * info->vTotal)) : 0;
}
static SDL_bool
SetXRandRModeInfo(Display *display, XRRScreenResources *res, RRCrtc crtc,
RRMode modeID, SDL_DisplayMode *mode)
{
int i;
for (i = 0; i < res->nmode; ++i) {
const XRRModeInfo *info = &res->modes[i];
if (info->id == modeID) {
XRRCrtcInfo *crtcinfo;
Rotation rotation = 0;
crtcinfo = X11_XRRGetCrtcInfo(display, res, crtc);
if (crtcinfo) {
rotation = crtcinfo->rotation;
X11_XRRFreeCrtcInfo(crtcinfo);
}
if (rotation & (XRANDR_ROTATION_LEFT|XRANDR_ROTATION_RIGHT)) {
mode->w = info->height;
mode->h = info->width;
} else {
mode->w = info->width;
mode->h = info->height;
}
mode->refresh_rate = CalculateXRandRRefreshRate(info);
((SDL_DisplayModeData*)mode->driverdata)->xrandr_mode = modeID;
#ifdef X11MODES_DEBUG
printf("XRandR mode %d: %dx%d@%dHz\n", (int) modeID, mode->w, mode->h, mode->refresh_rate);
#endif
return SDL_TRUE;
}
}
return SDL_FALSE;
}
static void
SetXRandRDisplayName(Display *dpy, Atom EDID, char *name, const size_t namelen, RROutput output, const unsigned long widthmm, const unsigned long heightmm)
{
/* See if we can get the EDID data for the real monitor name */
int inches;
int nprop;
Atom *props = X11_XRRListOutputProperties(dpy, output, &nprop);
int i;
for (i = 0; i < nprop; ++i) {
unsigned char *prop;
int actual_format;
unsigned long nitems, bytes_after;
Atom actual_type;
if (props[i] == EDID) {
if (X11_XRRGetOutputProperty(dpy, output, props[i], 0, 100, False,
False, AnyPropertyType, &actual_type,
&actual_format, &nitems, &bytes_after,
&prop) == Success) {
MonitorInfo *info = decode_edid(prop);
if (info) {
#ifdef X11MODES_DEBUG
printf("Found EDID data for %s\n", name);
dump_monitor_info(info);
#endif
SDL_strlcpy(name, info->dsc_product_name, namelen);
free(info);
}
X11_XFree(prop);
}
break;
}
}
if (props) {
X11_XFree(props);
}
inches = (int)((SDL_sqrt(widthmm * widthmm + heightmm * heightmm) / 25.4f) + 0.5f);
if (*name && inches) {
const size_t len = SDL_strlen(name);
SDL_snprintf(&name[len], namelen-len, " %d\"", inches);
}
#ifdef X11MODES_DEBUG
printf("Display name: %s\n", name);
#endif
}
int
X11_InitModes_XRandR(_THIS)
{
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
Display *dpy = data->display;
const int screencount = ScreenCount(dpy);
const int default_screen = DefaultScreen(dpy);
RROutput primary = X11_XRRGetOutputPrimary(dpy, RootWindow(dpy, default_screen));
Atom EDID = X11_XInternAtom(dpy, "EDID", False);
XRRScreenResources *res = NULL;
Uint32 pixelformat;
XVisualInfo vinfo;
XPixmapFormatValues *pixmapformats;
int looking_for_primary;
int scanline_pad;
int output;
int screen, i, n;
for (looking_for_primary = 1; looking_for_primary >= 0; looking_for_primary--) {
for (screen = 0; screen < screencount; screen++) {
/* we want the primary output first, and then skipped later. */
if (looking_for_primary && (screen != default_screen)) {
continue;
}
if (get_visualinfo(dpy, screen, &vinfo) < 0) {
continue; /* uh, skip this screen? */
}
pixelformat = X11_GetPixelFormatFromVisualInfo(dpy, &vinfo);
if (SDL_ISPIXELFORMAT_INDEXED(pixelformat)) {
continue; /* Palettized video modes are no longer supported */
}
scanline_pad = SDL_BYTESPERPIXEL(pixelformat) * 8;
pixmapformats = X11_XListPixmapFormats(dpy, &n);
if (pixmapformats) {
for (i = 0; i < n; ++i) {
if (pixmapformats[i].depth == vinfo.depth) {
scanline_pad = pixmapformats[i].scanline_pad;
break;
}
}
X11_XFree(pixmapformats);
}
res = X11_XRRGetScreenResources(dpy, RootWindow(dpy, screen));
if (!res) {
continue;
}
for (output = 0; output < res->noutput; output++) {
XRROutputInfo *output_info;
int display_x, display_y;
unsigned long display_mm_width, display_mm_height;
SDL_DisplayData *displaydata;
char display_name[128];
SDL_DisplayMode mode;
SDL_DisplayModeData *modedata;
SDL_VideoDisplay display;
RRMode modeID;
RRCrtc output_crtc;
XRRCrtcInfo *crtc;
/* The primary output _should_ always be sorted first, but just in case... */
if ((looking_for_primary && (res->outputs[output] != primary)) ||
(!looking_for_primary && (screen == default_screen) && (res->outputs[output] == primary))) {
continue;
}
output_info = X11_XRRGetOutputInfo(dpy, res, res->outputs[output]);
if (!output_info || !output_info->crtc || output_info->connection == RR_Disconnected) {
X11_XRRFreeOutputInfo(output_info);
continue;
}
SDL_strlcpy(display_name, output_info->name, sizeof(display_name));
display_mm_width = output_info->mm_width;
display_mm_height = output_info->mm_height;
output_crtc = output_info->crtc;
X11_XRRFreeOutputInfo(output_info);
crtc = X11_XRRGetCrtcInfo(dpy, res, output_crtc);
if (!crtc) {
continue;
}
SDL_zero(mode);
modeID = crtc->mode;
mode.w = crtc->width;
mode.h = crtc->height;
mode.format = pixelformat;
display_x = crtc->x;
display_y = crtc->y;
X11_XRRFreeCrtcInfo(crtc);
displaydata = (SDL_DisplayData *) SDL_calloc(1, sizeof(*displaydata));
if (!displaydata) {
return SDL_OutOfMemory();
}
modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
if (!modedata) {
SDL_free(displaydata);
return SDL_OutOfMemory();
}
modedata->xrandr_mode = modeID;
mode.driverdata = modedata;
displaydata->screen = screen;
displaydata->visual = vinfo.visual;
displaydata->depth = vinfo.depth;
displaydata->hdpi = ((float) mode.w) * 25.4f / display_mm_width;
displaydata->vdpi = ((float) mode.h) * 25.4f / display_mm_height;
displaydata->ddpi = SDL_ComputeDiagonalDPI(mode.w, mode.h, ((float) display_mm_width) / 25.4f,((float) display_mm_height) / 25.4f);
displaydata->scanline_pad = scanline_pad;
displaydata->x = display_x;
displaydata->y = display_y;
displaydata->use_xrandr = 1;
displaydata->xrandr_output = res->outputs[output];
SetXRandRModeInfo(dpy, res, output_crtc, modeID, &mode);
SetXRandRDisplayName(dpy, EDID, display_name, sizeof (display_name), res->outputs[output], display_mm_width, display_mm_height);
SDL_zero(display);
if (*display_name) {
display.name = display_name;
}
display.desktop_mode = mode;
display.current_mode = mode;
display.driverdata = displaydata;
SDL_AddVideoDisplay(&display);
}
X11_XRRFreeScreenResources(res);
}
}
if (_this->num_displays == 0) {
return SDL_SetError("No available displays");
}
return 0;
}
#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
static SDL_bool
CheckVidMode(Display * display, int *major, int *minor)
{
const char *env;
/* Default the extension not available */
*major = *minor = 0;
/* Allow environment override */
env = SDL_GetHint(SDL_HINT_VIDEO_X11_XVIDMODE);
if (env && !SDL_atoi(env)) {
#ifdef X11MODES_DEBUG
printf("XVidMode disabled due to hint\n");
#endif
return SDL_FALSE;
}
if (!SDL_X11_HAVE_XVIDMODE) {
#ifdef X11MODES_DEBUG
printf("XVidMode support not available\n");
#endif
return SDL_FALSE;
}
/* Query the extension version */
vm_error = -1;
if (!X11_XF86VidModeQueryExtension(display, &vm_event, &vm_error)
|| !X11_XF86VidModeQueryVersion(display, major, minor)) {
#ifdef X11MODES_DEBUG
printf("XVidMode not active on the display\n");
#endif
return SDL_FALSE;
}
#ifdef X11MODES_DEBUG
printf("XVidMode available at version %d.%d!\n", *major, *minor);
#endif
return SDL_TRUE;
}
static
Bool XF86VidModeGetModeInfo(Display * dpy, int scr,
XF86VidModeModeInfo* info)
{
Bool retval;
int dotclock;
XF86VidModeModeLine l;
SDL_zerop(info);
SDL_zero(l);
retval = X11_XF86VidModeGetModeLine(dpy, scr, &dotclock, &l);
info->dotclock = dotclock;
info->hdisplay = l.hdisplay;
info->hsyncstart = l.hsyncstart;
info->hsyncend = l.hsyncend;
info->htotal = l.htotal;
info->hskew = l.hskew;
info->vdisplay = l.vdisplay;
info->vsyncstart = l.vsyncstart;
info->vsyncend = l.vsyncend;
info->vtotal = l.vtotal;
info->flags = l.flags;
info->privsize = l.privsize;
info->private = l.private;
return retval;
}
static int
CalculateXVidModeRefreshRate(const XF86VidModeModeInfo * info)
{
return (info->htotal
&& info->vtotal) ? (1000 * info->dotclock / (info->htotal *
info->vtotal)) : 0;
}
SDL_bool
SetXVidModeModeInfo(const XF86VidModeModeInfo *info, SDL_DisplayMode *mode)
{
mode->w = info->hdisplay;
mode->h = info->vdisplay;
mode->refresh_rate = CalculateXVidModeRefreshRate(info);
((SDL_DisplayModeData*)mode->driverdata)->vm_mode = *info;
return SDL_TRUE;
}
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
int
X11_InitModes(_THIS)
{
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
int snum, screen, screencount;
#if SDL_VIDEO_DRIVER_X11_XINERAMA
int xinerama_major, xinerama_minor;
int use_xinerama = 0;
XineramaScreenInfo *xinerama = NULL;
#endif
#if SDL_VIDEO_DRIVER_X11_XRANDR
int xrandr_major, xrandr_minor;
#endif
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
int vm_major, vm_minor;
int use_vidmode = 0;
#endif
/* XRandR is the One True Modern Way to do this on X11. If it's enabled and
available, don't even look at other ways of doing things. */
#if SDL_VIDEO_DRIVER_X11_XRANDR
/* require at least XRandR v1.3 */
if (CheckXRandR(data->display, &xrandr_major, &xrandr_minor) &&
(xrandr_major >= 2 || (xrandr_major == 1 && xrandr_minor >= 3))) {
return X11_InitModes_XRandR(_this);
}
#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */
/* !!! FIXME: eventually remove support for Xinerama and XVidMode (everything below here). */
#if SDL_VIDEO_DRIVER_X11_XINERAMA
/* Query Xinerama extention
* NOTE: This works with Nvidia Twinview correctly, but you need version 302.17 (released on June 2012)
* or newer of the Nvidia binary drivers
*/
if (CheckXinerama(data->display, &xinerama_major, &xinerama_minor)) {
int (*handler) (Display *, XErrorEvent *);
X11_XSync(data->display, False);
handler = X11_XSetErrorHandler(X11_XineramaFailed);
xinerama = X11_XineramaQueryScreens(data->display, &screencount);
X11_XSync(data->display, False);
X11_XSetErrorHandler(handler);
if (xinerama_triggered_error) {
xinerama = 0;
}
if (xinerama) {
use_xinerama = xinerama_major * 100 + xinerama_minor;
}
}
if (!xinerama) {
screencount = ScreenCount(data->display);
}
#else
screencount = ScreenCount(data->display);
#endif /* SDL_VIDEO_DRIVER_X11_XINERAMA */
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
if (CheckVidMode(data->display, &vm_major, &vm_minor)) {
use_vidmode = vm_major * 100 + vm_minor;
}
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
for (snum = 0; snum < screencount; ++snum) {
XVisualInfo vinfo;
SDL_VideoDisplay display;
SDL_DisplayData *displaydata;
SDL_DisplayMode mode;
SDL_DisplayModeData *modedata;
XPixmapFormatValues *pixmapFormats;
char display_name[128];
int i, n;
/* Re-order screens to always put default screen first */
if (snum == 0) {
screen = DefaultScreen(data->display);
} else if (snum == DefaultScreen(data->display)) {
screen = 0;
} else {
screen = snum;
}
#if SDL_VIDEO_DRIVER_X11_XINERAMA
if (xinerama) {
if (get_visualinfo(data->display, 0, &vinfo) < 0) {
continue;
}
} else {
if (get_visualinfo(data->display, screen, &vinfo) < 0) {
continue;
}
}
#else
if (get_visualinfo(data->display, screen, &vinfo) < 0) {
continue;
}
#endif
displaydata = (SDL_DisplayData *) SDL_calloc(1, sizeof(*displaydata));
if (!displaydata) {
continue;
}
display_name[0] = '\0';
mode.format = X11_GetPixelFormatFromVisualInfo(data->display, &vinfo);
if (SDL_ISPIXELFORMAT_INDEXED(mode.format)) {
/* We don't support palettized modes now */
SDL_free(displaydata);
continue;
}
#if SDL_VIDEO_DRIVER_X11_XINERAMA
if (xinerama) {
mode.w = xinerama[screen].width;
mode.h = xinerama[screen].height;
} else {
mode.w = DisplayWidth(data->display, screen);
mode.h = DisplayHeight(data->display, screen);
}
#else
mode.w = DisplayWidth(data->display, screen);
mode.h = DisplayHeight(data->display, screen);
#endif
mode.refresh_rate = 0;
modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
if (!modedata) {
SDL_free(displaydata);
continue;
}
mode.driverdata = modedata;
#if SDL_VIDEO_DRIVER_X11_XINERAMA
/* Most of SDL's calls to X11 are unwaware of Xinerama, and to X11 standard calls, when Xinerama is active,
* there's only one screen available. So we force the screen number to zero and
* let Xinerama specific code handle specific functionality using displaydata->xinerama_info
*/
if (use_xinerama) {
displaydata->screen = 0;
displaydata->use_xinerama = use_xinerama;
displaydata->xinerama_info = xinerama[screen];
displaydata->xinerama_screen = screen;
}
else displaydata->screen = screen;
#else
displaydata->screen = screen;
#endif
displaydata->visual = vinfo.visual;
displaydata->depth = vinfo.depth;
// We use the displaydata screen index here so that this works
// for both the Xinerama case, where we get the overall DPI,
// and the regular X11 screen info case.
displaydata->hdpi = (float)DisplayWidth(data->display, displaydata->screen) * 25.4f /
DisplayWidthMM(data->display, displaydata->screen);
displaydata->vdpi = (float)DisplayHeight(data->display, displaydata->screen) * 25.4f /
DisplayHeightMM(data->display, displaydata->screen);
displaydata->ddpi = SDL_ComputeDiagonalDPI(DisplayWidth(data->display, displaydata->screen),
DisplayHeight(data->display, displaydata->screen),
(float)DisplayWidthMM(data->display, displaydata->screen) / 25.4f,
(float)DisplayHeightMM(data->display, displaydata->screen) / 25.4f);
displaydata->scanline_pad = SDL_BYTESPERPIXEL(mode.format) * 8;
pixmapFormats = X11_XListPixmapFormats(data->display, &n);
if (pixmapFormats) {
for (i = 0; i < n; ++i) {
if (pixmapFormats[i].depth == displaydata->depth) {
displaydata->scanline_pad = pixmapFormats[i].scanline_pad;
break;
}
}
X11_XFree(pixmapFormats);
}
#if SDL_VIDEO_DRIVER_X11_XINERAMA
if (use_xinerama) {
displaydata->x = xinerama[screen].x_org;
displaydata->y = xinerama[screen].y_org;
}
else
#endif
{
displaydata->x = 0;
displaydata->y = 0;
}
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
if (!displaydata->use_xrandr &&
#if SDL_VIDEO_DRIVER_X11_XINERAMA
/* XVidMode only works on the screen at the origin */
(!displaydata->use_xinerama ||
(displaydata->x == 0 && displaydata->y == 0)) &&
#endif
use_vidmode) {
displaydata->use_vidmode = use_vidmode;
if (displaydata->use_xinerama) {
displaydata->vidmode_screen = 0;
} else {
displaydata->vidmode_screen = screen;
}
XF86VidModeGetModeInfo(data->display, displaydata->vidmode_screen, &modedata->vm_mode);
}
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
SDL_zero(display);
if (*display_name) {
display.name = display_name;
}
display.desktop_mode = mode;
display.current_mode = mode;
display.driverdata = displaydata;
SDL_AddVideoDisplay(&display);
}
#if SDL_VIDEO_DRIVER_X11_XINERAMA
if (xinerama) X11_XFree(xinerama);
#endif
if (_this->num_displays == 0) {
return SDL_SetError("No available displays");
}
return 0;
}
void
X11_GetDisplayModes(_THIS, SDL_VideoDisplay * sdl_display)
{
Display *display = ((SDL_VideoData *) _this->driverdata)->display;
SDL_DisplayData *data = (SDL_DisplayData *) sdl_display->driverdata;
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
int nmodes;
XF86VidModeModeInfo ** modes;
#endif
int screen_w;
int screen_h;
SDL_DisplayMode mode;
/* Unfortunately X11 requires the window to be created with the correct
* visual and depth ahead of time, but the SDL API allows you to create
* a window before setting the fullscreen display mode. This means that
* we have to use the same format for all windows and all display modes.
* (or support recreating the window with a new visual behind the scenes)
*/
mode.format = sdl_display->current_mode.format;
mode.driverdata = NULL;
screen_w = DisplayWidth(display, data->screen);
screen_h = DisplayHeight(display, data->screen);
#if SDL_VIDEO_DRIVER_X11_XINERAMA
if (data->use_xinerama) {
if (data->use_vidmode && !data->xinerama_info.x_org && !data->xinerama_info.y_org &&
(screen_w > data->xinerama_info.width || screen_h > data->xinerama_info.height)) {
SDL_DisplayModeData *modedata;
/* Add the full (both screens combined) xinerama mode only on the display that starts at 0,0
* if we're using vidmode.
*/
mode.w = screen_w;
mode.h = screen_h;
mode.refresh_rate = 0;
modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
if (modedata) {
*modedata = *(SDL_DisplayModeData *)sdl_display->desktop_mode.driverdata;
}
mode.driverdata = modedata;
if (!SDL_AddDisplayMode(sdl_display, &mode)) {
SDL_free(modedata);
}
}
else if (!data->use_xrandr)
{
SDL_DisplayModeData *modedata;
/* Add the current mode of each monitor otherwise if we can't get them from xrandr */
mode.w = data->xinerama_info.width;
mode.h = data->xinerama_info.height;
mode.refresh_rate = 0;
modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
if (modedata) {
*modedata = *(SDL_DisplayModeData *)sdl_display->desktop_mode.driverdata;
}
mode.driverdata = modedata;
if (!SDL_AddDisplayMode(sdl_display, &mode)) {
SDL_free(modedata);
}
}
}
#endif /* SDL_VIDEO_DRIVER_X11_XINERAMA */
#if SDL_VIDEO_DRIVER_X11_XRANDR
if (data->use_xrandr) {
XRRScreenResources *res;
res = X11_XRRGetScreenResources (display, RootWindow(display, data->screen));
if (res) {
SDL_DisplayModeData *modedata;
XRROutputInfo *output_info;
int i;
output_info = X11_XRRGetOutputInfo(display, res, data->xrandr_output);
if (output_info && output_info->connection != RR_Disconnected) {
for (i = 0; i < output_info->nmode; ++i) {
modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
if (!modedata) {
continue;
}
mode.driverdata = modedata;
if (!SetXRandRModeInfo(display, res, output_info->crtc, output_info->modes[i], &mode) ||
!SDL_AddDisplayMode(sdl_display, &mode)) {
SDL_free(modedata);
}
}
}
X11_XRRFreeOutputInfo(output_info);
X11_XRRFreeScreenResources(res);
}
return;
}
#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
if (data->use_vidmode &&
X11_XF86VidModeGetAllModeLines(display, data->vidmode_screen, &nmodes, &modes)) {
int i;
SDL_DisplayModeData *modedata;
#ifdef X11MODES_DEBUG
printf("VidMode modes: (unsorted)\n");
for (i = 0; i < nmodes; ++i) {
printf("Mode %d: %d x %d @ %d, flags: 0x%x\n", i,
modes[i]->hdisplay, modes[i]->vdisplay,
CalculateXVidModeRefreshRate(modes[i]), modes[i]->flags);
}
#endif
for (i = 0; i < nmodes; ++i) {
modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
if (!modedata) {
continue;
}
mode.driverdata = modedata;
if (!SetXVidModeModeInfo(modes[i], &mode) || !SDL_AddDisplayMode(sdl_display, &mode)) {
SDL_free(modedata);
}
}
X11_XFree(modes);
return;
}
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
if (!data->use_xrandr && !data->use_vidmode) {
SDL_DisplayModeData *modedata;
/* Add the desktop mode */
mode = sdl_display->desktop_mode;
modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
if (modedata) {
*modedata = *(SDL_DisplayModeData *)sdl_display->desktop_mode.driverdata;
}
mode.driverdata = modedata;
if (!SDL_AddDisplayMode(sdl_display, &mode)) {
SDL_free(modedata);
}
}
}
int
X11_SetDisplayMode(_THIS, SDL_VideoDisplay * sdl_display, SDL_DisplayMode * mode)
{
SDL_VideoData *viddata = (SDL_VideoData *) _this->driverdata;
Display *display = viddata->display;
SDL_DisplayData *data = (SDL_DisplayData *) sdl_display->driverdata;
SDL_DisplayModeData *modedata = (SDL_DisplayModeData *)mode->driverdata;
viddata->last_mode_change_deadline = SDL_GetTicks() + (PENDING_FOCUS_TIME * 2);
#if SDL_VIDEO_DRIVER_X11_XRANDR
if (data->use_xrandr) {
XRRScreenResources *res;
XRROutputInfo *output_info;
XRRCrtcInfo *crtc;
Status status;
res = X11_XRRGetScreenResources (display, RootWindow(display, data->screen));
if (!res) {
return SDL_SetError("Couldn't get XRandR screen resources");
}
output_info = X11_XRRGetOutputInfo(display, res, data->xrandr_output);
if (!output_info || output_info->connection == RR_Disconnected) {
X11_XRRFreeScreenResources(res);
return SDL_SetError("Couldn't get XRandR output info");
}
crtc = X11_XRRGetCrtcInfo(display, res, output_info->crtc);
if (!crtc) {
X11_XRRFreeOutputInfo(output_info);
X11_XRRFreeScreenResources(res);
return SDL_SetError("Couldn't get XRandR crtc info");
}
status = X11_XRRSetCrtcConfig (display, res, output_info->crtc, CurrentTime,
crtc->x, crtc->y, modedata->xrandr_mode, crtc->rotation,
&data->xrandr_output, 1);
X11_XRRFreeCrtcInfo(crtc);
X11_XRRFreeOutputInfo(output_info);
X11_XRRFreeScreenResources(res);
if (status != Success) {
return SDL_SetError("X11_XRRSetCrtcConfig failed");
}
}
#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
if (data->use_vidmode) {
X11_XF86VidModeSwitchToMode(display, data->vidmode_screen, &modedata->vm_mode);
}
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
return 0;
}
void
X11_QuitModes(_THIS)
{
}
int
X11_GetDisplayBounds(_THIS, SDL_VideoDisplay * sdl_display, SDL_Rect * rect)
{
SDL_DisplayData *data = (SDL_DisplayData *) sdl_display->driverdata;
rect->x = data->x;
rect->y = data->y;
rect->w = sdl_display->current_mode.w;
rect->h = sdl_display->current_mode.h;
#if SDL_VIDEO_DRIVER_X11_XINERAMA
/* Get the real current bounds of the display */
if (data->use_xinerama) {
Display *display = ((SDL_VideoData *) _this->driverdata)->display;
int screencount;
XineramaScreenInfo *xinerama = X11_XineramaQueryScreens(display, &screencount);
if (xinerama) {
rect->x = xinerama[data->xinerama_screen].x_org;
rect->y = xinerama[data->xinerama_screen].y_org;
X11_XFree(xinerama);
}
}
#endif /* SDL_VIDEO_DRIVER_X11_XINERAMA */
return 0;
}
int
X11_GetDisplayDPI(_THIS, SDL_VideoDisplay * sdl_display, float * ddpi, float * hdpi, float * vdpi)
{
SDL_DisplayData *data = (SDL_DisplayData *) sdl_display->driverdata;
if (ddpi) {
*ddpi = data->ddpi;
}
if (hdpi) {
*hdpi = data->hdpi;
}
if (vdpi) {
*vdpi = data->vdpi;
}
return data->ddpi != 0.0f ? 0 : -1;
}
#endif /* SDL_VIDEO_DRIVER_X11 */
/* vi: set ts=4 sw=4 expandtab: */
SDL_DisplayData::screen
int screen
Definition: SDL_x11modes.h:28
X11_GetPixelFormatFromVisualInfo
Uint32 X11_GetPixelFormatFromVisualInfo(Display *display, XVisualInfo *vinfo)
MonitorInfo::dsc_product_name
char dsc_product_name[14]
Definition: edid.h:160
SDL_strlcpy
#define SDL_strlcpy
Definition: SDL_dynapi_overrides.h:400
SDL_PIXELFORMAT_INDEX4LSB
Definition: SDL_pixels.h:179
namelen
GLint namelen
Definition: SDL_opengl_glext.h:3728
SDL_DisplayData::ddpi
float ddpi
Definition: SDL_x11modes.h:34
n
GLdouble n
Definition: SDL_opengl_glext.h:1952
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
e
SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char const char SDL_SCANF_FORMAT_STRING const char return SDL_ThreadFunction const char void return Uint32 return Uint32 SDL_AssertionHandler void SDL_SpinLock SDL_atomic_t int int return SDL_atomic_t return void void void return void return int return SDL_AudioSpec SDL_AudioSpec return int int return return int SDL_RWops int SDL_AudioSpec Uint8 Uint32 * e
Definition: SDL_dynapi_procs.h:121
decode_edid
MonitorInfo * decode_edid(const uchar *edid)
Definition: edid-parse.c:521
X11_SetDisplayMode
int X11_SetDisplayMode(_THIS, SDL_VideoDisplay *display, SDL_DisplayMode *mode)
SDL_DisplayMode::w
int w
Definition: SDL_video.h:56
SDL_ISPIXELFORMAT_INDEXED
#define SDL_ISPIXELFORMAT_INDEXED(format)
Definition: SDL_pixels.h:133
SDL_VIDEO_DRIVER_X11_XRANDR
#define SDL_VIDEO_DRIVER_X11_XRANDR
Definition: SDL_config.h:307
edid.h
dpy
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display dpy)
Definition: SDL_x11sym.h:36
rect
SDL_Rect rect
Definition: testrelative.c:27
SDL_DisplayData::vdpi
float vdpi
Definition: SDL_x11modes.h:36
SDL_VideoData::display
struct wl_display * display
Definition: SDL_waylandvideo.h:40
SDL_MasksToPixelFormatEnum
#define SDL_MasksToPixelFormatEnum
Definition: SDL_dynapi_overrides.h:285
SDL_VideoDisplay::name
char * name
Definition: SDL_sysvideo.h:122
p
GLfloat GLfloat p
Definition: SDL_opengl_glext.h:11090
free
SDL_EventEntry * free
Definition: SDL_events.c:81
X11_UseDirectColorVisuals
SDL_bool X11_UseDirectColorVisuals(void)
SDL_VideoDevice::driverdata
void * driverdata
Definition: SDL_sysvideo.h:332
data
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1967
SDL_DisplayMode
The structure that defines a display mode.
Definition: SDL_video.h:53
SDL_GetHint
#define SDL_GetHint
Definition: SDL_dynapi_overrides.h:197
SDL_DisplayMode::refresh_rate
int refresh_rate
Definition: SDL_video.h:58
f
GLfloat f
Definition: SDL_opengl_glext.h:1870
SDL_BYTESPERPIXEL
#define SDL_BYTESPERPIXEL(X)
Definition: SDL_pixels.h:127
name
GLuint const GLchar * name
Definition: SDL_opengl_glext.h:660
SDL_PIXELFORMAT_INDEX1LSB
Definition: SDL_pixels.h:173
SDL_zerop
#define SDL_zerop(x)
Definition: SDL_stdinc.h:356
SDL_AddVideoDisplay
int SDL_AddVideoDisplay(const SDL_VideoDisplay *display)
Definition: SDL_video.c:593
len
GLenum GLsizei len
Definition: SDL_opengl_glext.h:2926
SDL_DisplayData
Definition: SDL_cocoamodes.h:26
SDL_DisplayData::scanline_pad
int scanline_pad
Definition: SDL_x11modes.h:31
res
GLuint res
Definition: SDL_opengl_glext.h:7937
X11_GetDisplayBounds
int X11_GetDisplayBounds(_THIS, SDL_VideoDisplay *sdl_display, SDL_Rect *rect)
_this
static SDL_VideoDevice * _this
Definition: SDL_video.c:114
SDL_bool
SDL_bool
Definition: SDL_stdinc.h:126
dump_monitor_info
void dump_monitor_info(MonitorInfo *info)
Definition: edid-parse.c:549
retval
SDL_bool retval
Definition: testgamecontroller.c:65
SDL_DisplayModeData
Definition: SDL_cocoamodes.h:31
SDL_DisplayData::hdpi
float hdpi
Definition: SDL_x11modes.h:35
SDL_calloc
void * SDL_calloc(size_t nmemb, size_t size)
SDL_PIXELFORMAT_INDEX4MSB
Definition: SDL_pixels.h:182
X11_GetDisplayModes
void X11_GetDisplayModes(_THIS, SDL_VideoDisplay *display)
SDL_GetTicks
Uint32 SDL_GetTicks(void)
Get the number of milliseconds since the SDL library initialization.
d
SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char const char SDL_SCANF_FORMAT_STRING const char return SDL_ThreadFunction const char void return Uint32 return Uint32 SDL_AssertionHandler void SDL_SpinLock SDL_atomic_t int int return SDL_atomic_t return void void void return void return int return SDL_AudioSpec SDL_AudioSpec return int int return return int SDL_RWops int SDL_AudioSpec Uint8 ** d
Definition: SDL_dynapi_procs.h:121
X11_InitModes
int X11_InitModes(_THIS)
_THIS
#define _THIS
Definition: SDL_alsa_audio.h:31
SDL_free
void SDL_free(void *mem)
SDL_DisplayMode::driverdata
void * driverdata
Definition: SDL_video.h:59
sort_controllers.output
output
Definition: sort_controllers.py:10
SDL_VideoDevice::num_displays
int num_displays
Definition: SDL_sysvideo.h:279
SDL_PIXELFORMAT_UNKNOWN
Definition: SDL_pixels.h:172
SDL_DisplayData::use_xinerama
int use_xinerama
Definition: SDL_x11modes.h:38
X11_GetDisplayDPI
int X11_GetDisplayDPI(_THIS, SDL_VideoDisplay *sdl_display, float *ddpi, float *hdpi, float *vdpi)
SDL_VideoDisplay::current_mode
SDL_DisplayMode current_mode
Definition: SDL_sysvideo.h:127
mode
GLenum mode
Definition: SDL_opengl_glext.h:1122
SDL_hints.h
SDL_strtol
#define SDL_strtol
Definition: SDL_dynapi_overrides.h:418
SDL_zero
#define SDL_zero(x)
Definition: SDL_stdinc.h:355
SDL_DisplayMode::h
int h
Definition: SDL_video.h:57
SDL_DisplayData::use_xrandr
int use_xrandr
Definition: SDL_x11modes.h:39
SDL_DisplayData::visual
Visual * visual
Definition: SDL_x11modes.h:29
SDL_Rect::x
int x
Definition: SDL_rect.h:66
SDL_TRUE
Definition: SDL_stdinc.h:129
SDL_Rect::w
int w
Definition: SDL_rect.h:67
SDL_VIDEO_DRIVER_X11_XVIDMODE
#define SDL_VIDEO_DRIVER_X11_XVIDMODE
Definition: SDL_config.h:310
SDL_atoi
#define SDL_atoi
Definition: SDL_dynapi_overrides.h:416
SDL_VideoDisplay
Definition: SDL_sysvideo.h:120
SDL_getenv
#define SDL_getenv
Definition: SDL_dynapi_overrides.h:384
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
NULL
#define NULL
Definition: begin_code.h:143
SDL_OutOfMemory
#define SDL_OutOfMemory()
Definition: SDL_error.h:52
SDL_VideoDisplay::desktop_mode
SDL_DisplayMode desktop_mode
Definition: SDL_sysvideo.h:126
SDL_HINT_VIDEO_X11_XRANDR
#define SDL_HINT_VIDEO_X11_XRANDR
A variable controlling whether the X11 XRandR extension should be used.
Definition: SDL_hints.h:186
depth
GLint GLint GLsizei GLsizei GLsizei depth
Definition: SDL_opengl.h:1565
SDL_SetError
#define SDL_SetError
Definition: SDL_dynapi_overrides.h:36
SDL_DisplayData::y
int y
Definition: SDL_x11modes.h:33
SDL_PIXELFORMAT_INDEX1MSB
Definition: SDL_pixels.h:176
X11_QuitModes
void X11_QuitModes(_THIS)
MonitorInfo
Definition: edid.h:80
SDL_strlen
#define SDL_strlen
Definition: SDL_dynapi_overrides.h:399
SDL_Rect::h
int h
Definition: SDL_rect.h:67
PENDING_FOCUS_TIME
#define PENDING_FOCUS_TIME
Definition: SDL_x11window.h:30
SDL_FALSE
Definition: SDL_stdinc.h:128
SDL_sqrt
#define SDL_sqrt
Definition: SDL_dynapi_overrides.h:443
SDL_x11video.h
SDL_VideoData
Definition: SDL_androidvideo.h:35
SDL_AddDisplayMode
SDL_bool SDL_AddDisplayMode(SDL_VideoDisplay *display, const SDL_DisplayMode *mode)
Definition: SDL_video.c:709
SDL_snprintf
#define SDL_snprintf
Definition: SDL_dynapi_overrides.h:46
flags
GLbitfield flags
Definition: SDL_opengl_glext.h:1480
SDL_VIDEO_DRIVER_X11_XINERAMA
#define SDL_VIDEO_DRIVER_X11_XINERAMA
Definition: SDL_config.h:304
SDL_PIXELTYPE_INDEX8
Definition: SDL_pixels.h:55
SDL_VideoData::last_mode_change_deadline
Uint32 last_mode_change_deadline
Definition: SDL_x11video.h:119
SDL_DisplayMode::format
Uint32 format
Definition: SDL_video.h:55
props
GLenum GLuint GLsizei const GLenum * props
Definition: SDL_opengl_glext.h:2465
SDL_DisplayData::x
int x
Definition: SDL_x11modes.h:32
SDL_timer.h
SDL_DisplayData::use_vidmode
int use_vidmode
Definition: SDL_x11modes.h:40
X11_GetVisualInfoFromVisual
int X11_GetVisualInfoFromVisual(Display *display, Visual *visual, XVisualInfo *vinfo)
screen
SDL_Renderer * screen
Definition: testgamecontroller.c:64
SDL_HINT_VIDEO_X11_XVIDMODE
#define SDL_HINT_VIDEO_X11_XVIDMODE
A variable controlling whether the X11 VidMode extension should be used.
Definition: SDL_hints.h:164
SDL_Rect::y
int y
Definition: SDL_rect.h:66
SDL_ComputeDiagonalDPI
float SDL_ComputeDiagonalDPI(int hpix, int vpix, float hinches, float vinches)
Definition: SDL_video.c:3649
SDL_DisplayData::depth
int depth
Definition: SDL_x11modes.h:30
SDL_HINT_VIDEO_X11_XINERAMA
#define SDL_HINT_VIDEO_X11_XINERAMA
A variable controlling whether the X11 Xinerama extension should be used.
Definition: SDL_hints.h:175
SDL_Rect
A rectangle, with the origin at the upper left.
Definition: SDL_rect.h:64
SDL_VideoDisplay::driverdata
void * driverdata
Definition: SDL_sysvideo.h:133