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RetroArch/gfx/display_servers/dispserv_x11.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
* Copyright (C) 2016-2017 - Brad Parker
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <compat/strl.h>
#include <sys/types.h>
#include <unistd.h>
#include <X11/Xlib.h>
#include <X11/extensions/Xrandr.h> // run pkg-config --static --libs xrandr
#include <X11/extensions/randr.h>
#include <X11/extensions/Xrender.h>
#include "../../config.h"
#ifdef HAVE_XRANDR
#include <X11/extensions/Xrandr.h>
#endif
#include "../video_display_server.h"
#include "../common/x11_common.h"
#include "../../configuration.h"
#include "../video_driver.h" /* needed to set refresh rate in set resolution */
#include "../video_crt_switch.h" /* needed to set aspect for low res in linux */
static unsigned orig_width = 0;
static unsigned orig_height = 0;
static char old_mode[250] = {0};
static char orig_output[250] = {0};
static char new_mode[250] = {0};
static char xrandr[250] = {0};
static char fbset[150] = {0};
static char output[500] = {0};
static char output4[500] = {0};
static bool crt_en = false;
static unsigned crtid = 20;
static XRRModeInfo crt_rrmode;
typedef struct
{
unsigned opacity;
bool decorations;
} dispserv_x11_t;
static void* x11_display_server_init(void)
{
dispserv_x11_t *dispserv = (dispserv_x11_t*)calloc(1, sizeof(*dispserv));
if (!dispserv)
return NULL;
return dispserv;
}
static void x11_display_server_destroy(void *data)
{
dispserv_x11_t *dispserv = (dispserv_x11_t*)data;
int i = 0;
if (crt_en)
{
snprintf(output, sizeof(output),
"xrandr --newmode \"700x480_59.94\" 13.849698 700 742 801 867 480 490 496 533 interlace -hsync -vsync");
system(output);
snprintf(output, sizeof(output),
"xrandr --addmode %s 700x480_59.94", orig_output);
system(output);
snprintf(output, sizeof(output),
"xrandr --output %s --mode 700x480_59.94", orig_output);
system(output);
snprintf(output, sizeof(output),
"xrandr --delmode %s %.s",orig_output, old_mode);
system(output);
snprintf(output, sizeof(output), "xrandr --rmmode %s", old_mode);
system(output);
}
if (dispserv)
free(dispserv);
}
static bool x11_display_server_set_window_opacity(void *data, unsigned opacity)
{
dispserv_x11_t *serv = (dispserv_x11_t*)data;
Atom net_wm_opacity = XInternAtom(g_x11_dpy, "_NET_WM_WINDOW_OPACITY", False);
Atom cardinal = XInternAtom(g_x11_dpy, "CARDINAL", False);
serv->opacity = opacity;
opacity = opacity * ((unsigned)-1 / 100.0);
if (opacity == (unsigned)-1)
XDeleteProperty(g_x11_dpy, g_x11_win, net_wm_opacity);
else
XChangeProperty(g_x11_dpy, g_x11_win, net_wm_opacity, cardinal,
32, PropModeReplace, (const unsigned char*)&opacity, 1);
return true;
}
static bool x11_display_server_set_window_decorations(void *data, bool on)
{
dispserv_x11_t *serv = (dispserv_x11_t*)data;
if (serv)
serv->decorations = on;
/* menu_setting performs a reinit instead to properly apply
* decoration changes */
return true;
}
static bool x11_display_server_set_resolution(void *data,
unsigned width, unsigned height, int int_hz, float hz, int center, int monitor_index)
{
int screen;
Window window;
XRRScreenResources *res = NULL;
Display *dsp = NULL;
Screen *scrn = NULL;
int i = 0;
int hfp = 0;
int hsp = 0;
int hbp = 0;
int vfp = 0;
int vsp = 0;
int vbp = 0;
int hmax = 0;
int vmax = 0;
int pdefault = 8;
int pwidth = 0;
float roundw = 0.0f;
float roundh = 0.0f;
float pixel_clock = 0;
crt_en = true;
snprintf(old_mode, sizeof(old_mode), "%s", new_mode);
dsp = XOpenDisplay(NULL);
scrn = DefaultScreenOfDisplay(dsp);
screen = DefaultScreen ( dsp );
window = RootWindow ( dsp, screen );
/* set core refresh from hz */
video_monitor_set_refresh_rate(hz);
/* following code is the mode line generator */
hsp = width * 1.140;
hfp = width * 1.055;
pwidth = width;
if (height < 400 && width > 400)
pwidth = width / 2;
roundw = roundf((float)pwidth / (float)height * 100) / 100;
if (height > width)
roundw = roundf((float)height / (float)width * 100) / 100;
if (roundw > 1.35)
roundw = 1.25;
if (roundw < 1.20)
roundw = 1.34;
hbp = width * roundw - 8;
hmax = hbp;
if (height < 241)
vmax = 261;
if (height < 241 && hz > 56 && hz < 58)
vmax = 280;
if (height < 241 && hz < 55)
vmax = 313;
if (height > 250 && height < 260 && hz > 54)
vmax = 296;
if (height > 250 && height < 260 && hz > 52 && hz < 54)
vmax = 285;
if (height > 250 && height < 260 && hz < 52)
vmax = 313;
if (height > 260 && height < 300)
vmax = 318;
if (height > 400 && hz > 56)
vmax = 533;
if (height > 520 && hz < 57)
vmax = 580;
if (height > 300 && hz < 56)
vmax = 615;
if (height > 500 && hz < 56)
vmax = 624;
if (height > 300)
pdefault = pdefault * 2;
vfp = height + ((vmax - height) / 2) - pdefault;
if (height < 300)
vsp = vfp + 3; /* needs to be 3 for progressive */
if (height > 300)
vsp = vfp + 6; /* needs to be 6 for interlaced */
vbp = vmax;
if (height < 300)
pixel_clock = (hmax * vmax * hz) / 1000000;
if (height > 300)
pixel_clock = ((hmax * vmax * hz) / 1000000) / 2;
/* above code is the modeline generator */
/* create interlaced newmode from modline variables */
if (height < 300)
{
snprintf(xrandr, sizeof(xrandr), "xrandr --newmode \"CRT_%dx%d_%0.2f\" %f %d %d %d %d %d %d %d %d -hsync -vsync", width, height, hz, pixel_clock,
width, hfp, hsp, hbp, height, vfp, vsp, vbp);
system(xrandr);
}
/* create interlaced newmode from modline variables */
if (height > 300)
{
snprintf(xrandr, sizeof(xrandr), "xrandr --newmode \"CRT_%dx%d_%0.2f\" %f %d %d %d %d %d %d %d %d interlace -hsync -vsync", width, height, hz, pixel_clock,
width, hfp, hsp, hbp, height, vfp, vsp, vbp);
system(xrandr);
}
/* variable for new mode */
snprintf(new_mode, sizeof(new_mode), "CRT_%dx%d_%0.2f", width, height, hz);
/* need to run loops for DVI0 - DVI-2 and VGA0 - VGA-2 outputs to
* add and delete modes */
crt_rrmode.id = crtid;
crt_rrmode.width = width;
crt_rrmode.height = height;
crt_rrmode.dotClock = pixel_clock;
crt_rrmode.hSyncStart = hfp;
crt_rrmode.hSyncEnd = hsp;
crt_rrmode.hTotal = hmax;
crt_rrmode.hSkew = 0;
crt_rrmode.vSyncStart = vfp;
crt_rrmode.vSyncEnd = vsp;
crt_rrmode.vTotal = vmax;
crt_rrmode.name = new_mode;
crt_rrmode.nameLength = sizeof(new_mode);
crt_rrmode.modeFlags = 0;
res = XRRGetScreenResources (dsp, window);
if (monitor_index == 0)
{
for (int i = 0; i < res->noutput; i++)
{
XRROutputInfo *outputs = XRRGetOutputInfo (dsp, res, res->outputs[i]);
if (outputs->connection == RR_Connected)
{
snprintf(orig_output, sizeof(orig_output),"%s", outputs->name);
snprintf(output4, sizeof(output4),"xrandr --addmode %s %s",outputs->name ,new_mode);
system(output4);
snprintf(output4, sizeof(output4),"xrandr --output %s --mode %s", outputs->name, new_mode);
system(output4);
snprintf(output4, sizeof(output4),"xrandr --delmode %s %s", outputs->name,old_mode);
system(output4);
snprintf(output4, sizeof(output4),"xrandr --rmmode %s", old_mode);
system(output4);
}
}
}
if (monitor_index > 0)
{
XRROutputInfo *outputs = XRRGetOutputInfo (dsp, res, res->outputs[monitor_index]);
if (outputs->connection == RR_Connected)
{
snprintf(orig_output, sizeof(orig_output),"%s", outputs->name);
snprintf(output4, sizeof(output4),"xrandr --addmode %s %s",outputs->name ,new_mode);
system(output4);
snprintf(output4, sizeof(output4),"xrandr --output %s --mode %s", outputs->name, new_mode);
system(output4);
snprintf(output4, sizeof(output4),"xrandr --delmode %s %s", outputs->name, old_mode);
system(output4);
snprintf(output4, sizeof(output4),"xrandr --rmmode %s", old_mode);
system(output4);
}
}
return true;
}
const char *x11_display_server_get_output_options(void *data)
{
#ifdef HAVE_XRANDR
Display *dpy;
XRRScreenResources *res;
XRROutputInfo *info;
Window root;
int i;
static char s[PATH_MAX_LENGTH];
if (!(dpy = XOpenDisplay(0)))
return NULL;
root = RootWindow(dpy, DefaultScreen(dpy));
if (!(res = XRRGetScreenResources(dpy, root)))
return NULL;
for (i = 0; i < res->noutput; i++)
{
if (!(info = XRRGetOutputInfo(dpy, res, res->outputs[i])))
return NULL;
strlcat(s, info->name, sizeof(s));
if ((i+1) < res->noutput)
strlcat(s, "|", sizeof(s));
}
return s;
#else
/* TODO/FIXME - hardcoded for now; list should be built up dynamically later */
return "HDMI-0|HDMI-1|HDMI-2|HDMI-3|DVI-0|DVI-1|DVI-2|DVI-3|VGA-0|VGA-1|VGA-2|VGA-3|Config";
#endif
}
const video_display_server_t dispserv_x11 = {
x11_display_server_init,
x11_display_server_destroy,
x11_display_server_set_window_opacity,
NULL, /* set_window_progress */
x11_display_server_set_window_decorations,
x11_display_server_set_resolution,
NULL, /* get_resolution_list */
x11_display_server_get_output_options,
"x11"
};
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