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https://gitlab.freedesktop.org/wayland/weston
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![Derek Foreman](/assets/img/avatar_default.png)
We do this enough that having a single implementation for it is probably a win. Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
957 lines
22 KiB
C
957 lines
22 KiB
C
/*
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* Copyright © 2011 Benjamin Franzke
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* Copyright © 2010 Intel Corporation
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* Copyright © 2014 Collabora, Ltd.
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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
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "config.h"
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdbool.h>
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#include <assert.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <signal.h>
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#include <time.h>
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#include <errno.h>
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#include <wayland-client.h>
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#include "shared/helpers.h"
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#include <libweston/zalloc.h>
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#include "shared/timespec-util.h"
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#include "shared/os-compatibility.h"
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#include "presentation-time-client-protocol.h"
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#include "xdg-shell-client-protocol.h"
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enum run_mode {
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RUN_MODE_FEEDBACK,
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RUN_MODE_FEEDBACK_IDLE,
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RUN_MODE_PRESENT,
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};
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static const char * const run_mode_name[] = {
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[RUN_MODE_FEEDBACK] = "feedback",
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[RUN_MODE_FEEDBACK_IDLE] = "feedback-idle",
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[RUN_MODE_PRESENT] = "low-lat present",
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};
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struct output {
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struct wl_output *output;
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uint32_t name;
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struct wl_list link;
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};
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struct display {
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struct wl_display *display;
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struct wl_registry *registry;
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struct wl_compositor *compositor;
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struct xdg_wm_base *wm_base;
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struct wl_shm *shm;
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uint32_t formats;
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struct wp_presentation *presentation;
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clockid_t clk_id;
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struct wl_list output_list; /* struct output::link */
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};
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struct feedback {
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struct window *window;
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unsigned frame_no;
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struct wp_presentation_feedback *feedback;
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struct timespec commit;
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struct timespec target;
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uint32_t frame_stamp;
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struct wl_list link;
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struct timespec present;
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};
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struct buffer {
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struct wl_buffer *buffer;
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void *shm_data;
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int busy;
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};
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struct window {
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struct display *display;
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int width, height;
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enum run_mode mode;
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struct wl_surface *surface;
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struct xdg_surface *xdg_surface;
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struct xdg_toplevel *xdg_toplevel;
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uint32_t configure_serial;
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struct buffer *buffers;
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int num_buffers;
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int next;
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int refresh_nsec;
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int commit_delay_msecs;
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struct wl_callback *callback;
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struct wl_list feedback_list;
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struct feedback *received_feedback;
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};
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#define NSEC_PER_SEC 1000000000
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static void
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buffer_release(void *data, struct wl_buffer *buffer)
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{
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struct buffer *mybuf = data;
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mybuf->busy = 0;
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}
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static const struct wl_buffer_listener buffer_listener = {
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buffer_release
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};
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static int
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create_shm_buffers(struct display *display, struct buffer **buffers,
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int num_buffers, int width, int height, uint32_t format)
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{
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struct buffer *bufs;
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struct wl_shm_pool *pool;
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int fd, size, stride, offset;
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void *data;
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int i;
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stride = width * 4;
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size = stride * height * num_buffers;
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fd = os_create_anonymous_file(size);
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if (fd < 0) {
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fprintf(stderr, "creating a buffer file for %d B failed: %s\n",
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size, strerror(errno));
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return -1;
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}
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data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
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if (data == MAP_FAILED) {
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fprintf(stderr, "mmap failed: %s\n", strerror(errno));
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close(fd);
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return -1;
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}
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pool = wl_shm_create_pool(display->shm, fd, size);
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offset = 0;
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bufs = calloc(num_buffers, sizeof(*bufs));
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assert(bufs);
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for (i = 0; i < num_buffers; i++) {
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bufs[i].buffer = wl_shm_pool_create_buffer(pool, offset,
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width, height,
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stride, format);
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assert(bufs[i].buffer);
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wl_buffer_add_listener(bufs[i].buffer,
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&buffer_listener, &bufs[i]);
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bufs[i].shm_data = (char *)data + offset;
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offset += stride * height;
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}
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wl_shm_pool_destroy(pool);
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close(fd);
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*buffers = bufs;
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return 0;
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}
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static void
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xdg_wm_base_handle_ping(void *data, struct xdg_wm_base *xdg_wm_base,
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uint32_t serial)
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{
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xdg_wm_base_pong(xdg_wm_base, serial);
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}
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static const struct xdg_wm_base_listener xdg_wm_base_listener = {
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.ping = xdg_wm_base_handle_ping,
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};
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static void
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xdg_surface_handle_configure(void *data, struct xdg_surface *xdg_surface,
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uint32_t serial)
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{
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struct window *window = data;
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window->configure_serial = serial;
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}
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static const struct xdg_surface_listener xdg_surface_listener = {
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.configure = xdg_surface_handle_configure,
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};
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static void
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xdg_toplevel_handle_configure(void *data, struct xdg_toplevel *xdg_toplevel,
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int32_t width, int32_t height,
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struct wl_array *states)
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{
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/* noop */
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}
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static void
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xdg_toplevel_handle_close(void *data, struct xdg_toplevel *xdg_toplevel)
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{
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fprintf(stderr, "presentation-shm exiting\n");
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exit(0);
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}
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static const struct xdg_toplevel_listener xdg_toplevel_listener = {
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.configure = xdg_toplevel_handle_configure,
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.close = xdg_toplevel_handle_close,
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};
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static struct window *
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create_window(struct display *display, int width, int height,
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enum run_mode mode, int commit_delay_msecs)
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{
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struct window *window;
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char title[128];
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int ret;
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snprintf(title, sizeof(title),
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"presentation-shm: %s [Delay %i msecs]", run_mode_name[mode],
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commit_delay_msecs);
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window = zalloc(sizeof *window);
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if (!window)
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return NULL;
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window->commit_delay_msecs = commit_delay_msecs;
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window->mode = mode;
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window->callback = NULL;
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wl_list_init(&window->feedback_list);
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window->display = display;
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window->width = width;
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window->height = height;
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window->surface = wl_compositor_create_surface(display->compositor);
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window->xdg_surface = xdg_wm_base_get_xdg_surface(display->wm_base,
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window->surface);
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if (!window->xdg_surface)
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return NULL;
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window->xdg_toplevel = xdg_surface_get_toplevel(window->xdg_surface);
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if (!window->xdg_toplevel)
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return NULL;
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xdg_wm_base_add_listener(display->wm_base, &xdg_wm_base_listener,
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NULL);
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xdg_surface_add_listener(window->xdg_surface, &xdg_surface_listener,
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window);
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xdg_toplevel_add_listener(window->xdg_toplevel, &xdg_toplevel_listener,
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window);
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xdg_toplevel_set_title(window->xdg_toplevel, title);
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xdg_toplevel_set_min_size(window->xdg_toplevel, width, height);
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xdg_toplevel_set_max_size(window->xdg_toplevel, width, height);
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wl_surface_commit(window->surface);
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wl_display_roundtrip(window->display->display);
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window->num_buffers = 60;
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window->refresh_nsec = NSEC_PER_SEC / 60; /* 60 Hz guess */
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window->next = 0;
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ret = create_shm_buffers(window->display,
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&window->buffers, window->num_buffers,
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window->width, window->height,
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WL_SHM_FORMAT_XRGB8888);
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assert(ret == 0);
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return window;
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}
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static void
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destroy_feedback(struct feedback *feedback)
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{
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if (feedback->feedback)
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wp_presentation_feedback_destroy(feedback->feedback);
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wl_list_remove(&feedback->link);
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free(feedback);
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}
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static void
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destroy_window(struct window *window)
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{
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int i;
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while (!wl_list_empty(&window->feedback_list)) {
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struct feedback *f;
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f = wl_container_of(window->feedback_list.next, f, link);
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printf("clean up feedback %u\n", f->frame_no);
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destroy_feedback(f);
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}
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if (window->callback)
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wl_callback_destroy(window->callback);
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xdg_surface_destroy(window->xdg_surface);
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wl_surface_destroy(window->surface);
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for (i = 0; i < window->num_buffers; i++)
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wl_buffer_destroy(window->buffers[i].buffer);
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/* munmap(window->buffers[0].shm_data, size); */
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free(window->buffers);
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free(window);
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}
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static struct buffer *
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window_next_buffer(struct window *window)
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{
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struct buffer *buf = &window->buffers[window->next];
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window->next = (window->next + 1) % window->num_buffers;
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return buf;
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}
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static void
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paint_pixels(void *image, int width, int height, uint32_t phase)
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{
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const int halfh = height / 2;
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const int halfw = width / 2;
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uint32_t *pixel = image;
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int y, or;
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double ang = M_PI * 2.0 / 1000000.0 * phase;
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double s = sin(ang);
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double c = cos(ang);
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/* squared radii thresholds */
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or = (halfw < halfh ? halfw : halfh) - 16;
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or *= or;
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for (y = 0; y < height; y++) {
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int x;
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int oy = y - halfh;
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int y2 = oy * oy;
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for (x = 0; x < width; x++) {
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int ox = x - halfw;
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uint32_t v = 0xff000000;
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double rx, ry;
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if (ox * ox + y2 > or) {
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if (ox * oy > 0)
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*pixel++ = 0xff000000;
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else
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*pixel++ = 0xffffffff;
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continue;
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}
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rx = c * ox + s * oy;
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ry = -s * ox + c * oy;
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if (rx < 0.0)
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v |= 0x00ff0000;
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if (ry < 0.0)
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v |= 0x0000ff00;
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if ((rx < 0.0) == (ry < 0.0))
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v |= 0x000000ff;
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*pixel++ = v;
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}
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}
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}
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static void
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feedback_sync_output(void *data,
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struct wp_presentation_feedback *presentation_feedback,
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struct wl_output *output)
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{
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/* not interested */
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}
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static char *
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pflags_to_str(uint32_t flags, char *str, unsigned len)
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{
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static const struct {
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uint32_t flag;
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char sym;
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} desc[] = {
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{ WP_PRESENTATION_FEEDBACK_KIND_VSYNC, 's' },
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{ WP_PRESENTATION_FEEDBACK_KIND_HW_CLOCK, 'c' },
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{ WP_PRESENTATION_FEEDBACK_KIND_HW_COMPLETION, 'e' },
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{ WP_PRESENTATION_FEEDBACK_KIND_ZERO_COPY, 'z' },
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};
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unsigned i;
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*str = '\0';
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if (len < ARRAY_LENGTH(desc) + 1)
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return str;
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for (i = 0; i < ARRAY_LENGTH(desc); i++)
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str[i] = flags & desc[i].flag ? desc[i].sym : '_';
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str[ARRAY_LENGTH(desc)] = '\0';
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return str;
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}
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static uint32_t
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timespec_to_ms(const struct timespec *ts)
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{
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return (uint32_t)ts->tv_sec * 1000 + ts->tv_nsec / 1000000;
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}
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static int
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timespec_diff_to_usec(const struct timespec *a, const struct timespec *b)
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{
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time_t secs = a->tv_sec - b->tv_sec;
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long nsec = a->tv_nsec - b->tv_nsec;
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return secs * 1000000 + nsec / 1000;
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}
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static void
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feedback_presented(void *data,
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struct wp_presentation_feedback *presentation_feedback,
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uint32_t tv_sec_hi,
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uint32_t tv_sec_lo,
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uint32_t tv_nsec,
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uint32_t refresh_nsec,
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uint32_t seq_hi,
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uint32_t seq_lo,
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uint32_t flags)
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{
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struct feedback *feedback = data;
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struct window *window = feedback->window;
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struct feedback *prev_feedback = window->received_feedback;
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uint64_t seq = u64_from_u32s(seq_hi, seq_lo);
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const struct timespec *prevpresent;
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uint32_t commit, present;
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uint32_t f2c, c2p, f2p;
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int p2p, t2p;
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char flagstr[10];
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timespec_from_proto(&feedback->present, tv_sec_hi, tv_sec_lo, tv_nsec);
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commit = timespec_to_ms(&feedback->commit);
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present = timespec_to_ms(&feedback->present);
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if (prev_feedback)
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prevpresent = &prev_feedback->present;
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else
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prevpresent = &feedback->present;
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f2c = commit - feedback->frame_stamp;
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c2p = present - commit;
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f2p = present - feedback->frame_stamp;
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p2p = timespec_diff_to_usec(&feedback->present, prevpresent);
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t2p = timespec_diff_to_usec(&feedback->present, &feedback->target);
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switch (window->mode) {
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case RUN_MODE_PRESENT:
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printf("%6u: c2p %4u ms, p2p %5d us, t2p %6d us, [%s] "
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"seq %" PRIu64 "\n", feedback->frame_no, c2p,
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p2p, t2p,
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pflags_to_str(flags, flagstr, sizeof(flagstr)), seq);
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break;
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case RUN_MODE_FEEDBACK:
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case RUN_MODE_FEEDBACK_IDLE:
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printf("%6u: f2c %2u ms, c2p %2u ms, f2p %2u ms, p2p %5d us, "
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"t2p %6d, [%s], seq %" PRIu64 "\n", feedback->frame_no,
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f2c, c2p, f2p, p2p, t2p,
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pflags_to_str(flags, flagstr, sizeof(flagstr)), seq);
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}
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if (window->received_feedback)
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destroy_feedback(window->received_feedback);
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window->received_feedback = feedback;
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}
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static void
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feedback_discarded(void *data,
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struct wp_presentation_feedback *presentation_feedback)
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{
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struct feedback *feedback = data;
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printf("discarded %u\n", feedback->frame_no);
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destroy_feedback(feedback);
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}
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static const struct wp_presentation_feedback_listener feedback_listener = {
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feedback_sync_output,
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feedback_presented,
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feedback_discarded
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};
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static void
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window_emulate_rendering(struct window *window)
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{
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struct timespec delay;
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int ret;
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if (window->commit_delay_msecs <= 0)
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return;
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delay.tv_sec = window->commit_delay_msecs / 1000;
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delay.tv_nsec = (window->commit_delay_msecs % 1000) * 1000000;
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ret = nanosleep(&delay, NULL);
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if (ret)
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printf("nanosleep failed: %s\n", strerror(errno));
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}
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static void
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window_create_feedback(struct window *window, uint32_t frame_stamp)
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{
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static unsigned seq;
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struct wp_presentation *pres = window->display->presentation;
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struct feedback *feedback;
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seq++;
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if (!pres)
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return;
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|
|
feedback = zalloc(sizeof *feedback);
|
|
if (!feedback)
|
|
return;
|
|
|
|
feedback->window = window;
|
|
feedback->feedback = wp_presentation_feedback(pres, window->surface);
|
|
wp_presentation_feedback_add_listener(feedback->feedback,
|
|
&feedback_listener, feedback);
|
|
|
|
feedback->frame_no = seq;
|
|
|
|
clock_gettime(window->display->clk_id, &feedback->commit);
|
|
feedback->frame_stamp = frame_stamp;
|
|
feedback->target = feedback->commit;
|
|
|
|
wl_list_insert(&window->feedback_list, &feedback->link);
|
|
}
|
|
|
|
static void
|
|
window_commit_next(struct window *window)
|
|
{
|
|
struct buffer *buffer;
|
|
|
|
buffer = window_next_buffer(window);
|
|
assert(buffer);
|
|
|
|
if (window->configure_serial) {
|
|
xdg_surface_ack_configure(window->xdg_surface,
|
|
window->configure_serial);
|
|
window->configure_serial = 0;
|
|
}
|
|
|
|
wl_surface_attach(window->surface, buffer->buffer, 0, 0);
|
|
wl_surface_damage(window->surface, 0, 0, window->width, window->height);
|
|
wl_surface_commit(window->surface);
|
|
buffer->busy = 1;
|
|
}
|
|
|
|
static const struct wl_callback_listener frame_listener_mode_feedback;
|
|
|
|
static void
|
|
redraw_mode_feedback(void *data, struct wl_callback *callback, uint32_t time)
|
|
{
|
|
struct window *window = data;
|
|
|
|
if (callback && window->mode == RUN_MODE_FEEDBACK_IDLE)
|
|
sleep(1);
|
|
|
|
if (callback)
|
|
wl_callback_destroy(callback);
|
|
|
|
window_emulate_rendering(window);
|
|
|
|
window->callback = wl_surface_frame(window->surface);
|
|
wl_callback_add_listener(window->callback,
|
|
&frame_listener_mode_feedback, window);
|
|
|
|
window_create_feedback(window, time);
|
|
window_commit_next(window);
|
|
}
|
|
|
|
static const struct wl_callback_listener frame_listener_mode_feedback = {
|
|
redraw_mode_feedback
|
|
};
|
|
|
|
static const struct wp_presentation_feedback_listener feedkick_listener;
|
|
|
|
static void
|
|
window_feedkick(struct window *window)
|
|
{
|
|
struct wp_presentation *pres = window->display->presentation;
|
|
struct wp_presentation_feedback *fback;
|
|
|
|
fback = wp_presentation_feedback(pres, window->surface);
|
|
wp_presentation_feedback_add_listener(fback, &feedkick_listener,
|
|
window);
|
|
}
|
|
|
|
static void
|
|
feedkick_presented(void *data,
|
|
struct wp_presentation_feedback *presentation_feedback,
|
|
uint32_t tv_sec_hi,
|
|
uint32_t tv_sec_lo,
|
|
uint32_t tv_nsec,
|
|
uint32_t refresh_nsec,
|
|
uint32_t seq_hi,
|
|
uint32_t seq_lo,
|
|
uint32_t flags)
|
|
{
|
|
struct window *window = data;
|
|
|
|
wp_presentation_feedback_destroy(presentation_feedback);
|
|
window->refresh_nsec = refresh_nsec;
|
|
|
|
switch (window->mode) {
|
|
case RUN_MODE_PRESENT:
|
|
window_emulate_rendering(window);
|
|
window_create_feedback(window, 0);
|
|
window_feedkick(window);
|
|
window_commit_next(window);
|
|
break;
|
|
case RUN_MODE_FEEDBACK:
|
|
case RUN_MODE_FEEDBACK_IDLE:
|
|
assert(0 && "bad mode");
|
|
}
|
|
}
|
|
|
|
static void
|
|
feedkick_discarded(void *data,
|
|
struct wp_presentation_feedback *presentation_feedback)
|
|
{
|
|
struct window *window = data;
|
|
|
|
wp_presentation_feedback_destroy(presentation_feedback);
|
|
|
|
switch (window->mode) {
|
|
case RUN_MODE_PRESENT:
|
|
window_emulate_rendering(window);
|
|
window_create_feedback(window, 0);
|
|
window_feedkick(window);
|
|
window_commit_next(window);
|
|
break;
|
|
case RUN_MODE_FEEDBACK:
|
|
case RUN_MODE_FEEDBACK_IDLE:
|
|
assert(0 && "bad mode");
|
|
}
|
|
}
|
|
|
|
static const struct wp_presentation_feedback_listener feedkick_listener = {
|
|
feedback_sync_output,
|
|
feedkick_presented,
|
|
feedkick_discarded
|
|
};
|
|
|
|
static void
|
|
firstdraw_mode_burst(struct window *window)
|
|
{
|
|
window_emulate_rendering(window);
|
|
|
|
switch (window->mode) {
|
|
case RUN_MODE_PRESENT:
|
|
window_create_feedback(window, 0);
|
|
break;
|
|
case RUN_MODE_FEEDBACK:
|
|
case RUN_MODE_FEEDBACK_IDLE:
|
|
assert(0 && "bad mode");
|
|
}
|
|
|
|
window_feedkick(window);
|
|
window_commit_next(window);
|
|
}
|
|
|
|
static void
|
|
window_prerender(struct window *window)
|
|
{
|
|
int i;
|
|
int timefactor = 1000000 / window->num_buffers;
|
|
|
|
for (i = 0; i < window->num_buffers; i++) {
|
|
struct buffer *buf = &window->buffers[i];
|
|
|
|
if (buf->busy)
|
|
fprintf(stderr, "wl_buffer id %u) busy\n",
|
|
wl_proxy_get_id(
|
|
(struct wl_proxy *)buf->buffer));
|
|
|
|
paint_pixels(buf->shm_data, window->width, window->height,
|
|
i * timefactor);
|
|
}
|
|
}
|
|
|
|
static void
|
|
output_destroy(struct output *o)
|
|
{
|
|
wl_output_destroy(o->output);
|
|
wl_list_remove(&o->link);
|
|
free(o);
|
|
}
|
|
|
|
static void
|
|
display_add_output(struct display *d, uint32_t name, uint32_t version)
|
|
{
|
|
struct output *o;
|
|
|
|
o = zalloc(sizeof(*o));
|
|
assert(o);
|
|
|
|
o->output = wl_registry_bind(d->registry, name,
|
|
&wl_output_interface, 1);
|
|
o->name = name;
|
|
wl_list_insert(&d->output_list, &o->link);
|
|
}
|
|
|
|
static void
|
|
presentation_clock_id(void *data, struct wp_presentation *presentation,
|
|
uint32_t clk_id)
|
|
{
|
|
struct display *d = data;
|
|
|
|
d->clk_id = clk_id;
|
|
}
|
|
|
|
static const struct wp_presentation_listener presentation_listener = {
|
|
presentation_clock_id
|
|
};
|
|
|
|
static void
|
|
shm_format(void *data, struct wl_shm *wl_shm, uint32_t format)
|
|
{
|
|
struct display *d = data;
|
|
|
|
d->formats |= (1 << format);
|
|
}
|
|
|
|
static const struct wl_shm_listener shm_listener = {
|
|
shm_format
|
|
};
|
|
|
|
static void
|
|
registry_handle_global(void *data, struct wl_registry *registry,
|
|
uint32_t name, const char *interface, uint32_t version)
|
|
{
|
|
struct display *d = data;
|
|
|
|
if (strcmp(interface, "wl_compositor") == 0) {
|
|
d->compositor =
|
|
wl_registry_bind(registry,
|
|
name, &wl_compositor_interface, 1);
|
|
} else if (strcmp(interface, "xdg_wm_base") == 0) {
|
|
d->wm_base =
|
|
wl_registry_bind(registry, name,
|
|
&xdg_wm_base_interface, 1);
|
|
} else if (strcmp(interface, "wl_shm") == 0) {
|
|
d->shm = wl_registry_bind(registry,
|
|
name, &wl_shm_interface, 1);
|
|
wl_shm_add_listener(d->shm, &shm_listener, d);
|
|
} else if (strcmp(interface, "wl_output") == 0) {
|
|
display_add_output(d, name, version);
|
|
} else if (strcmp(interface, wp_presentation_interface.name) == 0) {
|
|
d->presentation =
|
|
wl_registry_bind(registry,
|
|
name, &wp_presentation_interface, 1);
|
|
wp_presentation_add_listener(d->presentation,
|
|
&presentation_listener, d);
|
|
}
|
|
}
|
|
|
|
static void
|
|
registry_handle_global_remove(void *data, struct wl_registry *registry,
|
|
uint32_t name)
|
|
{
|
|
struct display *d = data;
|
|
struct output *output, *otmp;
|
|
|
|
wl_list_for_each_safe(output, otmp, &d->output_list, link) {
|
|
if (output->name != name)
|
|
continue;
|
|
|
|
output_destroy(output);
|
|
}
|
|
}
|
|
|
|
static const struct wl_registry_listener registry_listener = {
|
|
registry_handle_global,
|
|
registry_handle_global_remove
|
|
};
|
|
|
|
static struct display *
|
|
create_display(void)
|
|
{
|
|
struct display *display;
|
|
|
|
display = malloc(sizeof *display);
|
|
if (display == NULL) {
|
|
fprintf(stderr, "out of memory\n");
|
|
exit(1);
|
|
}
|
|
display->display = wl_display_connect(NULL);
|
|
assert(display->display);
|
|
|
|
display->formats = 0;
|
|
display->clk_id = -1;
|
|
wl_list_init(&display->output_list);
|
|
display->registry = wl_display_get_registry(display->display);
|
|
wl_registry_add_listener(display->registry,
|
|
®istry_listener, display);
|
|
wl_display_roundtrip(display->display);
|
|
if (display->shm == NULL) {
|
|
fprintf(stderr, "No wl_shm global\n");
|
|
exit(1);
|
|
}
|
|
|
|
wl_display_roundtrip(display->display);
|
|
|
|
if (!(display->formats & (1 << WL_SHM_FORMAT_XRGB8888))) {
|
|
fprintf(stderr, "WL_SHM_FORMAT_XRGB32 not available\n");
|
|
exit(1);
|
|
}
|
|
|
|
wl_display_get_fd(display->display);
|
|
|
|
return display;
|
|
}
|
|
|
|
static void
|
|
destroy_display(struct display *display)
|
|
{
|
|
while (!wl_list_empty(&display->output_list)) {
|
|
struct output *o;
|
|
|
|
o = wl_container_of(display->output_list.next, o, link);
|
|
output_destroy(o);
|
|
}
|
|
|
|
if (display->shm)
|
|
wl_shm_destroy(display->shm);
|
|
|
|
if (display->wm_base)
|
|
xdg_wm_base_destroy(display->wm_base);
|
|
|
|
if (display->compositor)
|
|
wl_compositor_destroy(display->compositor);
|
|
|
|
wl_registry_destroy(display->registry);
|
|
wl_display_flush(display->display);
|
|
wl_display_disconnect(display->display);
|
|
free(display);
|
|
}
|
|
|
|
static int running = 1;
|
|
|
|
static void
|
|
signal_int(int signum)
|
|
{
|
|
running = 0;
|
|
}
|
|
|
|
static void
|
|
usage(const char *prog, int exit_code)
|
|
{
|
|
fprintf(stderr, "Usage: %s [mode] [options]\n"
|
|
"where 'mode' is one of\n"
|
|
" -f\t\trun in feedback mode (default)\n"
|
|
" -i\t\trun in feedback-idle mode; sleep 1s between frames\n"
|
|
" -p\t\trun in low-latency presentation mode\n"
|
|
"and 'options' may include\n"
|
|
" -d msecs\temulate the time used for rendering by a delay \n"
|
|
"\t\tof the given milliseconds before commit\n\n",
|
|
prog);
|
|
|
|
fprintf(stderr, "Printed timing statistics, depending on mode:\n"
|
|
" commit sequence number\n"
|
|
" f2c: time from frame callback timestamp to commit\n"
|
|
" c2p: time from commit to presentation\n"
|
|
" f2p: time from frame callback timestamp to presentation\n"
|
|
" p2p: time from previous presentation to this one\n"
|
|
" t2p: time from target timestamp to presentation\n"
|
|
" seq: MSC\n");
|
|
|
|
|
|
exit(exit_code);
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
struct sigaction sigint;
|
|
struct display *display;
|
|
struct window *window;
|
|
int ret = 0;
|
|
enum run_mode mode = RUN_MODE_FEEDBACK;
|
|
int i;
|
|
int commit_delay_msecs = 0;
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
if (strcmp("-f", argv[i]) == 0)
|
|
mode = RUN_MODE_FEEDBACK;
|
|
else if (strcmp("-i", argv[i]) == 0)
|
|
mode = RUN_MODE_FEEDBACK_IDLE;
|
|
else if (strcmp("-p", argv[i]) == 0)
|
|
mode = RUN_MODE_PRESENT;
|
|
else if ((strcmp("-d", argv[i]) == 0) && (i + 1 < argc)) {
|
|
i++;
|
|
commit_delay_msecs = atoi(argv[i]);
|
|
}
|
|
else
|
|
usage(argv[0], EXIT_FAILURE);
|
|
}
|
|
|
|
display = create_display();
|
|
window = create_window(display, 250, 250, mode, commit_delay_msecs);
|
|
if (!window)
|
|
return 1;
|
|
|
|
sigint.sa_handler = signal_int;
|
|
sigemptyset(&sigint.sa_mask);
|
|
sigint.sa_flags = SA_RESETHAND;
|
|
sigaction(SIGINT, &sigint, NULL);
|
|
|
|
window_prerender(window);
|
|
|
|
switch (mode) {
|
|
case RUN_MODE_FEEDBACK:
|
|
case RUN_MODE_FEEDBACK_IDLE:
|
|
redraw_mode_feedback(window, NULL, 0);
|
|
break;
|
|
case RUN_MODE_PRESENT:
|
|
firstdraw_mode_burst(window);
|
|
break;
|
|
}
|
|
|
|
while (running && ret != -1)
|
|
ret = wl_display_dispatch(display->display);
|
|
|
|
fprintf(stderr, "presentation-shm exiting\n");
|
|
destroy_window(window);
|
|
destroy_display(display);
|
|
|
|
return 0;
|
|
}
|