596 lines
13 KiB
C
596 lines
13 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/Xcomposite.h>
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#include <X11/extensions/Xdamage.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 <xcb/xfixes.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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struct dri3_fence {
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XID xid;
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void *addr;
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};
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static int _x_error_occurred;
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static uint32_t stamp;
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struct list {
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struct list *next, *prev;
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};
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static void
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list_init(struct list *list)
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{
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list->next = list->prev = list;
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}
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static inline void
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__list_add(struct list *entry,
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struct list *prev,
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struct list *next)
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{
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next->prev = entry;
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entry->next = next;
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entry->prev = prev;
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prev->next = entry;
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}
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static inline void
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list_add(struct list *entry, struct list *head)
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{
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__list_add(entry, head, head->next);
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}
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static inline void
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__list_del(struct list *prev, struct list *next)
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{
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next->prev = prev;
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prev->next = next;
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}
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static inline void
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_list_del(struct list *entry)
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{
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__list_del(entry->prev, entry->next);
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}
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static inline void
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list_move(struct list *list, struct list *head)
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{
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if (list->prev != head) {
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_list_del(list);
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list_add(list, head);
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}
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}
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#define __container_of(ptr, sample, member) \
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(void *)((char *)(ptr) - ((char *)&(sample)->member - (char *)(sample)))
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#define list_for_each_entry(pos, head, member) \
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for (pos = __container_of((head)->next, pos, member); \
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&pos->member != (head); \
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pos = __container_of(pos->member.next, pos, member))
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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 int dri3_create_fence(Display *dpy,
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Pixmap pixmap,
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struct dri3_fence *fence)
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{
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xcb_connection_t *c = XGetXCBConnection(dpy);
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struct dri3_fence f;
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int fd;
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fd = xshmfence_alloc_shm();
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if (fd < 0)
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return -1;
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f.addr = xshmfence_map_shm(fd);
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if (f.addr == NULL) {
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close(fd);
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return -1;
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}
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f.xid = xcb_generate_id(c);
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xcb_dri3_fence_from_fd(c, pixmap, f.xid, 0, fd);
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*fence = f;
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return 0;
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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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struct buffer {
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struct list link;
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Pixmap pixmap;
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struct dri3_fence fence;
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int fd;
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int busy;
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};
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static void run(Display *dpy, Window win)
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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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#define N_BACK 8
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struct buffer buffer[N_BACK];
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struct list mru;
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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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unsigned present_flags = XCB_PRESENT_OPTION_ASYNC;
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xcb_xfixes_region_t update = 0;
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int completed = 0;
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int queued = 0;
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uint32_t eid;
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void *Q;
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int i, n;
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list_init(&mru);
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XGetGeometry(dpy, win,
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&root, &i, &n, &width, &height, &border, &depth);
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_x_error_occurred = 0;
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for (n = 0; n < N_BACK; n++) {
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xcb_dri3_buffer_from_pixmap_reply_t *reply;
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int *fds;
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buffer[n].pixmap =
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XCreatePixmap(dpy, win, width, height, depth);
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buffer[n].fence.xid = 0;
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buffer[n].fd = -1;
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if (dri3_create_fence(dpy, win, &buffer[n].fence))
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return;
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reply = xcb_dri3_buffer_from_pixmap_reply (c,
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xcb_dri3_buffer_from_pixmap(c, buffer[n].pixmap),
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NULL);
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if (reply == NULL)
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return;
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fds = xcb_dri3_buffer_from_pixmap_reply_fds (c, reply);
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buffer[n].fd = fds[0];
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free(reply);
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/* start idle */
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xshmfence_trigger(buffer[n].fence.addr);
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buffer[n].busy = 0;
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list_add(&buffer[n].link, &mru);
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}
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eid = xcb_generate_id(c);
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xcb_present_select_input(c, eid, win,
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XCB_PRESENT_EVENT_MASK_IDLE_NOTIFY |
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XCB_PRESENT_EVENT_MASK_COMPLETE_NOTIFY);
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Q = xcb_register_for_special_xge(c, &xcb_present_id, eid, &stamp);
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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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struct buffer *tmp, *b = NULL;
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list_for_each_entry(tmp, &mru, link) {
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if (!tmp->busy) {
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b = tmp;
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break;
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}
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}
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while (b == NULL) {
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xcb_present_generic_event_t *ev;
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ev = (xcb_present_generic_event_t *)
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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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switch (ev->evtype) {
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case XCB_PRESENT_COMPLETE_NOTIFY:
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completed++;
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queued--;
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break;
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case XCB_PRESENT_EVENT_IDLE_NOTIFY:
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{
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xcb_present_idle_notify_event_t *ie = (xcb_present_idle_notify_event_t *)ev;
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assert(ie->serial < N_BACK);
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buffer[ie->serial].busy = 0;
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if (b == NULL)
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b = &buffer[ie->serial];
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break;
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}
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}
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free(ev);
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} while ((ev = (xcb_present_generic_event_t *)xcb_poll_for_special_event(c, Q)));
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}
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b->busy = 1;
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if (b->fence.xid) {
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xshmfence_await(b->fence.addr);
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xshmfence_reset(b->fence.addr);
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}
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xcb_present_pixmap(c, win, b->pixmap, b - buffer,
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0, /* valid */
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update, /* 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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b->fence.xid,
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present_flags,
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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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list_move(&b->link, &mru);
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queued++;
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xcb_flush(c);
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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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while (queued) {
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xcb_present_generic_event_t *ev;
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ev = (xcb_present_generic_event_t *)
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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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switch (ev->evtype) {
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case XCB_PRESENT_COMPLETE_NOTIFY:
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completed++;
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queued--;
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break;
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case XCB_PRESENT_EVENT_IDLE_NOTIFY:
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break;
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}
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free(ev);
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} while ((ev = (xcb_present_generic_event_t *)xcb_poll_for_special_event(c, Q)));
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}
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clock_gettime(CLOCK_MONOTONIC, &end);
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printf("%f\n", 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 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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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 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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int main(int argc, char **argv)
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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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enum window { ROOT, FULLSCREEN, WINDOW } w = FULLSCREEN;
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enum visible {REDIRECTED, NORMAL } v = NORMAL;
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enum display { OFF, ON } d = OFF;
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int width, height;
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int i;
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while ((i = getopt(argc, argv, "d:v:w:")) != -1) {
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switch (i) {
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case 'd':
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if (strcmp(optarg, "off") == 0)
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d = OFF;
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else if (strcmp(optarg, "on") == 0)
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d = ON;
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else
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abort();
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break;
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case 'v':
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if (strcmp(optarg, "redirected") == 0)
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v = REDIRECTED;
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else if (strcmp(optarg, "normal") == 0)
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v = NORMAL;
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else
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abort();
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break;
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case 'w':
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if (strcmp(optarg, "fullscreen") == 0)
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w = FULLSCREEN;
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else if (strcmp(optarg, "window") == 0)
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w = WINDOW;
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else if (strcmp(optarg, "root") == 0)
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w = ROOT;
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else
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abort();
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break;
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}
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}
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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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width = DisplayWidth(dpy, DefaultScreen(dpy));
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height = DisplayHeight(dpy, DefaultScreen(dpy));
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if (!has_present(dpy))
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return 77;
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if (!has_dri3(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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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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if (v == REDIRECTED && !has_composite(dpy))
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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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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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if (d != OFF) {
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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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if (mode == NULL)
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continue;
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XRRSetCrtcConfig(dpy, res, output->crtcs[0], CurrentTime,
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0, 0, output->modes[0], RR_Rotate_0, &res->outputs[i], 1);
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width = mode->width;
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height = mode->height;
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break;
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}
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if (i == res->noutput) {
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_x_error_occurred = 77;
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goto restore;
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}
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}
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if (w == ROOT) {
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run(dpy, root);
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} else if (w == FULLSCREEN) {
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win = XCreateWindow(dpy, root,
|
|
0, 0, width, height, 0,
|
|
DefaultDepth(dpy, DefaultScreen(dpy)),
|
|
InputOutput,
|
|
DefaultVisual(dpy, DefaultScreen(dpy)),
|
|
CWOverrideRedirect, &attr);
|
|
if (v == REDIRECTED) {
|
|
XCompositeRedirectWindow(dpy, win, CompositeRedirectManual);
|
|
XDamageCreate(dpy, win, XDamageReportRawRectangles);
|
|
} else
|
|
fullscreen(dpy, win);
|
|
XMapWindow(dpy, win);
|
|
run(dpy, win);
|
|
} else if (w == WINDOW) {
|
|
win = XCreateWindow(dpy, root,
|
|
0, 0, width/2, height/2, 0,
|
|
DefaultDepth(dpy, DefaultScreen(dpy)),
|
|
InputOutput,
|
|
DefaultVisual(dpy, DefaultScreen(dpy)),
|
|
CWOverrideRedirect, &attr);
|
|
if (v == REDIRECTED) {
|
|
XCompositeRedirectWindow(dpy, win, CompositeRedirectManual);
|
|
XDamageCreate(dpy, win, XDamageReportRawRectangles);
|
|
}
|
|
XMapWindow(dpy, win);
|
|
run(dpy, win);
|
|
}
|
|
|
|
restore:
|
|
for (i = 0; i < res->ncrtc; i++)
|
|
XRRSetCrtcConfig(dpy, res, res->crtcs[i], CurrentTime,
|
|
0, 0, None, RR_Rotate_0, NULL, 0);
|
|
|
|
for (i = 0; i < res->ncrtc; i++)
|
|
XRRSetCrtcConfig(dpy, res, res->crtcs[i], CurrentTime,
|
|
original_crtc[i]->x,
|
|
original_crtc[i]->y,
|
|
original_crtc[i]->mode,
|
|
original_crtc[i]->rotation,
|
|
original_crtc[i]->outputs,
|
|
original_crtc[i]->noutput);
|
|
|
|
if (DPMSQueryExtension(dpy, &i, &i))
|
|
DPMSEnable(dpy);
|
|
|
|
XSync(dpy, True);
|
|
return _x_error_occurred;
|
|
}
|