417 lines
10 KiB
C
417 lines
10 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/xshmfence.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/Xrandr.h>
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#include <xcb/xcb.h>
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#include <xcb/present.h>
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#include <xcb/dri3.h>
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#include <xf86drm.h>
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#include <i915_drm.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 "dri3.h"
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static int _x_error_occurred;
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static uint32_t stamp;
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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 void *setup_msc(Display *dpy, Window win)
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{
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xcb_connection_t *c = XGetXCBConnection(dpy);
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uint32_t id = xcb_generate_id(c);
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xcb_present_select_input(c, id, win, XCB_PRESENT_EVENT_MASK_COMPLETE_NOTIFY);
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return xcb_register_for_special_xge(c, &xcb_present_id, id, &stamp);
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}
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static void teardown_msc(Display *dpy, void *q)
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{
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xcb_unregister_for_special_event(XGetXCBConnection(dpy), q);
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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, int use_dri3)
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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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Pixmap pixmap[4];
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int busy[4];
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struct dri3_fence fence[4];
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Window root;
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unsigned int width, height;
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unsigned border, depth;
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int i, j, n, back = 0;
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int completed = 0;
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void *Q;
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XGetGeometry(dpy, win,
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&root, &i, &j, &width, &height, &border, &depth);
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_x_error_occurred = 0;
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for (n = 0; n < 4; n++) {
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pixmap[n] = XCreatePixmap(dpy, win, width, height, depth);
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if (use_dri3) {
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if (dri3_create_fence(dpy, win, &fence[n]))
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return;
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/* start idle */
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xshmfence_trigger(fence[n].addr);
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}
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busy[n] = 0;
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}
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Q = setup_msc(dpy, win);
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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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Pixmap p = 0;
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for (i = 0; i < 4; i++) {
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j = (back + i) % 4;
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if (!busy[j]) {
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p = pixmap[j];
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break;
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}
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}
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if (p == 0) {
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xcb_present_complete_notify_event_t *ce;
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xcb_generic_event_t *ev;
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ev = xcb_wait_for_special_event(c, Q);
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if (ev == NULL)
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abort();
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do {
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ce = (xcb_present_complete_notify_event_t *)ev;
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if (ce->kind == XCB_PRESENT_COMPLETE_KIND_PIXMAP) {
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completed++;
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busy[ce->serial] = 0;
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if (p == 0)
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p = pixmap[j = ce->serial];
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}
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free(ev);
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} while ((ev = xcb_poll_for_special_event(c, Q)));
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}
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back = j;
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busy[back] = 1;
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if (use_dri3) {
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xshmfence_await(fence[back].addr);
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xshmfence_reset(fence[back].addr);
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}
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xcb_present_pixmap(c, win, p, back,
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0, /* valid */
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0, /* update */
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0, /* x_off */
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0, /* y_off */
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None,
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None, /* wait fence */
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use_dri3 ? fence[back].xid : None,
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XCB_PRESENT_OPTION_ASYNC,
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0, /* target msc */
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0, /* divisor */
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0, /* remainder */
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0, NULL);
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xcb_flush(c);
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back++;
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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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for (n = 0; n < 4; n++) {
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if (use_dri3)
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dri3_fence_free(dpy, &fence[n]);
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XFreePixmap(dpy, pixmap[n]);
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}
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XSync(dpy, True);
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teardown_msc(dpy, Q);
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if (_x_error_occurred)
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abort();
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printf("%s%s: Completed %d presents in %.1fs, %.3fus each (%.1f FPS)\n",
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name, use_dri3 ? " (dri3)" : "",
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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 int has_present(Display *dpy)
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{
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xcb_connection_t *c = XGetXCBConnection(dpy);
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xcb_generic_error_t *error = NULL;
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void *reply;
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reply = xcb_present_query_version_reply(c,
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xcb_present_query_version(c,
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XCB_PRESENT_MAJOR_VERSION,
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XCB_PRESENT_MINOR_VERSION),
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&error);
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free(reply);
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free(error);
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if (reply == NULL) {
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fprintf(stderr, "Present not supported on %s\n", DisplayString(dpy));
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return 0;
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}
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return 1;
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}
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static int dri3_query_version(Display *dpy, int *major, int *minor)
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{
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xcb_connection_t *c = XGetXCBConnection(dpy);
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xcb_dri3_query_version_reply_t *reply;
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xcb_generic_error_t *error;
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*major = *minor = -1;
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reply = xcb_dri3_query_version_reply(c,
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xcb_dri3_query_version(c,
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XCB_DRI3_MAJOR_VERSION,
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XCB_DRI3_MINOR_VERSION),
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&error);
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free(error);
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if (reply == NULL)
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return -1;
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*major = reply->major_version;
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*minor = reply->minor_version;
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free(reply);
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return 0;
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}
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static int has_dri3(Display *dpy)
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{
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const xcb_query_extension_reply_t *ext;
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int major, minor;
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ext = xcb_get_extension_data(XGetXCBConnection(dpy), &xcb_dri3_id);
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if (ext == NULL || !ext->present)
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return 0;
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if (dri3_query_version(dpy, &major, &minor) < 0)
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return 0;
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return major >= 0;
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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 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 void loop(Display *dpy, XRRScreenResources *res, int use_dri3)
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{
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Window root = DefaultRootWindow(dpy);
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Window win;
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XSetWindowAttributes attr;
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int i, j;
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attr.override_redirect = 1;
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run(dpy, root, "off", use_dri3);
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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", use_dri3);
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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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fullscreen(dpy, win);
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XMapWindow(dpy, win);
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run(dpy, win, "fullscreen", use_dri3);
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XDestroyWindow(dpy, win);
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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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XMapWindow(dpy, win);
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run(dpy, win, "windowed", use_dri3);
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XDestroyWindow(dpy, win);
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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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XMapWindow(dpy, win);
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run(dpy, win, "half", use_dri3);
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XDestroyWindow(dpy, win);
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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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}
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int main(void)
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{
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Display *dpy;
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XRRScreenResources *res;
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XRRCrtcInfo **original_crtc;
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int i;
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dpy = XOpenDisplay(NULL);
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if (dpy == NULL)
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return 77;
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if (!has_present(dpy))
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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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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, DefaultRootWindow(dpy));
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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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loop(dpy, res, 0);
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if (has_dri3(dpy))
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loop(dpy, res, 1);
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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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