343 lines
8.7 KiB
C
343 lines
8.7 KiB
C
/*
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* Copyright (c) 2015 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <X11/Xlib.h>
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#include <X11/Xatom.h>
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#include <X11/Xlib-xcb.h>
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#include <X11/Xutil.h>
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#include <X11/Xlibint.h>
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#include <X11/extensions/dpms.h>
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#include <X11/extensions/randr.h>
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#include <X11/extensions/Xcomposite.h>
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#include <X11/extensions/Xdamage.h>
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#include <X11/extensions/Xrandr.h>
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#include <xcb/xcb.h>
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#include <xcb/dri2.h>
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#include <xf86drm.h>
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#include <stdio.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <assert.h>
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#include <errno.h>
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#include <setjmp.h>
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#include <signal.h>
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#include "dri2.h"
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static int _x_error_occurred;
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static int
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_check_error_handler(Display *display,
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XErrorEvent *event)
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{
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printf("X11 error from display %s, serial=%ld, error=%d, req=%d.%d\n",
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DisplayString(display),
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event->serial,
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event->error_code,
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event->request_code,
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event->minor_code);
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_x_error_occurred++;
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return False; /* ignored */
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}
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static double elapsed(const struct timespec *start,
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const struct timespec *end)
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{
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return 1e6*(end->tv_sec - start->tv_sec) + (end->tv_nsec - start->tv_nsec)/1000;
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}
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static void run(Display *dpy, Window win, const char *name)
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{
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xcb_connection_t *c = XGetXCBConnection(dpy);
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struct timespec start, end;
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int n, completed = 0;
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_x_error_occurred = 0;
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clock_gettime(CLOCK_MONOTONIC, &start);
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do {
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for (n = 0; n < 1000; n++) {
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unsigned int attachments[] = { DRI2BufferBackLeft };
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unsigned int seq[2];
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seq[0] = xcb_dri2_swap_buffers_unchecked(c, win,
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0, 0, 0, 0, 0, 0).sequence;
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seq[1] = xcb_dri2_get_buffers_unchecked(c, win,
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1, 1, attachments).sequence;
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xcb_flush(c);
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xcb_discard_reply(c, seq[0]);
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xcb_discard_reply(c, seq[1]);
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completed++;
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}
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clock_gettime(CLOCK_MONOTONIC, &end);
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} while (end.tv_sec < start.tv_sec + 10);
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XSync(dpy, True);
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if (_x_error_occurred)
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abort();
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printf("%s: Completed %d swaps in %.1fs, %.3fus each (%.1f FPS)\n",
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name, completed, elapsed(&start, &end) / 1000000,
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elapsed(&start, &end) / completed,
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completed / (elapsed(&start, &end) / 1000000));
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}
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static inline XRRScreenResources *_XRRGetScreenResourcesCurrent(Display *dpy, Window window)
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{
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XRRScreenResources *res;
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res = XRRGetScreenResourcesCurrent(dpy, window);
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if (res == NULL)
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res = XRRGetScreenResources(dpy, window);
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return res;
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}
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static XRRModeInfo *lookup_mode(XRRScreenResources *res, int id)
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{
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int i;
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for (i = 0; i < res->nmode; i++) {
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if (res->modes[i].id == id)
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return &res->modes[i];
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}
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return NULL;
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}
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static int dri2_open(Display *dpy)
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{
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drm_auth_t auth;
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char *driver, *device;
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int fd;
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if (!DRI2Connect(dpy, DefaultRootWindow(dpy), &driver, &device))
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return -1;
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printf ("Connecting to %s driver on %s\n", driver, device);
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fd = open(device, O_RDWR);
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if (fd < 0)
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return -1;
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if (drmIoctl(fd, DRM_IOCTL_GET_MAGIC, &auth))
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return -1;
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if (!DRI2Authenticate(dpy, DefaultRootWindow(dpy), auth.magic))
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return -1;
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return fd;
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}
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static void fullscreen(Display *dpy, Window win)
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{
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Atom atom = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
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XChangeProperty(dpy, win,
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XInternAtom(dpy, "_NET_WM_STATE", False),
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XA_ATOM, 32, PropModeReplace,
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(unsigned char *)&atom, 1);
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}
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static int has_composite(Display *dpy)
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{
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int event, error;
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int major, minor;
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if (!XDamageQueryExtension (dpy, &event, &error))
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return 0;
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if (!XCompositeQueryExtension(dpy, &event, &error))
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return 0;
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XCompositeQueryVersion(dpy, &major, &minor);
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return major > 0 || minor >= 4;
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}
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int main(void)
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{
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Display *dpy;
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Window root, win;
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XRRScreenResources *res;
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XRRCrtcInfo **original_crtc;
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XSetWindowAttributes attr;
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int i, j, fd;
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attr.override_redirect = 1;
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dpy = XOpenDisplay(NULL);
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if (dpy == NULL)
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return 77;
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fd = dri2_open(dpy);
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if (fd < 0)
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return 77;
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if (DPMSQueryExtension(dpy, &i, &i))
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DPMSDisable(dpy);
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root = DefaultRootWindow(dpy);
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signal(SIGALRM, SIG_IGN);
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XSetErrorHandler(_check_error_handler);
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res = NULL;
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if (XRRQueryVersion(dpy, &i, &i))
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res = _XRRGetScreenResourcesCurrent(dpy, root);
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if (res == NULL)
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return 77;
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original_crtc = malloc(sizeof(XRRCrtcInfo *)*res->ncrtc);
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for (i = 0; i < res->ncrtc; i++)
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original_crtc[i] = XRRGetCrtcInfo(dpy, res, res->crtcs[i]);
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printf("noutput=%d, ncrtc=%d\n", res->noutput, res->ncrtc);
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for (i = 0; i < res->ncrtc; i++)
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XRRSetCrtcConfig(dpy, res, res->crtcs[i], CurrentTime,
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0, 0, None, RR_Rotate_0, NULL, 0);
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DRI2CreateDrawable(dpy, root);
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DRI2SwapInterval(dpy, root, 0);
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run(dpy, root, "off");
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XSync(dpy, True);
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for (i = 0; i < res->noutput; i++) {
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XRROutputInfo *output;
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XRRModeInfo *mode;
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output = XRRGetOutputInfo(dpy, res, res->outputs[i]);
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if (output == NULL)
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continue;
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mode = NULL;
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if (res->nmode)
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mode = lookup_mode(res, output->modes[0]);
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for (j = 0; mode && j < 2*output->ncrtc; j++) {
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int c = j;
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if (c >= output->ncrtc)
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c = 2*output->ncrtc - j - 1;
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printf("[%d, %d] -- OUTPUT:%ld, CRTC:%ld: %dx%d\n",
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i, c, (long)res->outputs[i], (long)output->crtcs[c],
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mode->width, mode->height);
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XRRSetCrtcConfig(dpy, res, output->crtcs[c], CurrentTime,
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0, 0, output->modes[0], RR_Rotate_0, &res->outputs[i], 1);
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run(dpy, root, "root");
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XSync(dpy, True);
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win = XCreateWindow(dpy, root,
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0, 0, mode->width, mode->height, 0,
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DefaultDepth(dpy, DefaultScreen(dpy)),
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InputOutput,
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DefaultVisual(dpy, DefaultScreen(dpy)),
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CWOverrideRedirect, &attr);
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DRI2CreateDrawable(dpy, win);
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DRI2SwapInterval(dpy, win, 0);
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fullscreen(dpy, win);
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XMapWindow(dpy, win);
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run(dpy, win, "fullscreen");
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XDestroyWindow(dpy, win);
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XSync(dpy, True);
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win = XCreateWindow(dpy, root,
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0, 0, mode->width, mode->height, 0,
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DefaultDepth(dpy, DefaultScreen(dpy)),
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InputOutput,
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DefaultVisual(dpy, DefaultScreen(dpy)),
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CWOverrideRedirect, &attr);
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DRI2CreateDrawable(dpy, win);
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DRI2SwapInterval(dpy, win, 0);
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XMapWindow(dpy, win);
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run(dpy, win, "windowed");
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XDestroyWindow(dpy, win);
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XSync(dpy, True);
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if (has_composite(dpy)) {
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Damage damage;
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_x_error_occurred = 0;
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win = XCreateWindow(dpy, root,
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0, 0, mode->width, mode->height, 0,
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DefaultDepth(dpy, DefaultScreen(dpy)),
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InputOutput,
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DefaultVisual(dpy, DefaultScreen(dpy)),
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CWOverrideRedirect, &attr);
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XCompositeRedirectWindow(dpy, win, CompositeRedirectManual);
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damage = XDamageCreate(dpy, win, XDamageReportRawRectangles);
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DRI2CreateDrawable(dpy, win);
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DRI2SwapInterval(dpy, win, 0);
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XMapWindow(dpy, win);
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XSync(dpy, True);
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if (!_x_error_occurred)
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run(dpy, win, "composited");
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XDamageDestroy(dpy, damage);
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XDestroyWindow(dpy, win);
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XSync(dpy, True);
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}
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win = XCreateWindow(dpy, root,
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0, 0, mode->width/2, mode->height/2, 0,
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DefaultDepth(dpy, DefaultScreen(dpy)),
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InputOutput,
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DefaultVisual(dpy, DefaultScreen(dpy)),
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CWOverrideRedirect, &attr);
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DRI2CreateDrawable(dpy, win);
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DRI2SwapInterval(dpy, win, 0);
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XMapWindow(dpy, win);
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run(dpy, win, "half");
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XDestroyWindow(dpy, win);
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XSync(dpy, True);
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XRRSetCrtcConfig(dpy, res, output->crtcs[c], CurrentTime,
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0, 0, None, RR_Rotate_0, NULL, 0);
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}
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XRRFreeOutputInfo(output);
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}
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for (i = 0; i < res->ncrtc; i++)
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XRRSetCrtcConfig(dpy, res, res->crtcs[i], CurrentTime,
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original_crtc[i]->x,
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original_crtc[i]->y,
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original_crtc[i]->mode,
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original_crtc[i]->rotation,
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original_crtc[i]->outputs,
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original_crtc[i]->noutput);
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if (DPMSQueryExtension(dpy, &i, &i))
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DPMSEnable(dpy);
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return 0;
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}
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