+++ /dev/null
-/*
- * Copyright © 2020 Collabora, Ltd.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial
- * portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <stdint.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <limits.h>
-#include <sys/param.h>
-#include <sys/mman.h>
-#include <getopt.h>
-#include <cairo.h>
-
-#include <wayland-client.h>
-#include "shared/helpers.h"
-#include "shared/xalloc.h"
-#include "shared/file-util.h"
-#include "shared/string-helpers.h"
-#include "shared/os-compatibility.h"
-#include "agl-screenshooter-client-protocol.h"
-#include "xdg-output-unstable-v1-client-protocol.h"
-
-struct screenshooter_data;
-
-struct screenshooter_output {
- struct wl_output *output;
- struct wl_buffer *buffer;
-
- int width, height, offset_x, offset_y, scale;
- void *data;
- struct screenshooter_data *sh_data;
-
- struct wl_list link; /** screenshooter_data::output_list */
-};
-
-struct xdg_output_v1_info {
- struct zxdg_output_v1 *xdg_output;
- struct screenshooter_output *output;
-
- char *name, *description;
- struct wl_list link; /** screenshooter_data::xdg_output_list */
-};
-
-
-struct buffer_size {
- int width, height;
-
- int min_x, min_y;
- int max_x, max_y;
-};
-
-struct screenshooter_data {
- struct wl_display *display;
- struct wl_shm *shm;
- struct wl_list output_list; /** screenshooter_output::link */
- struct wl_list xdg_output_list; /** xdg_output_v1_info::link */
-
- struct zxdg_output_manager_v1 *xdg_output_manager;
- struct agl_screenshooter *screenshooter;
- int buffer_copy_done;
-};
-
-static int opts = 0x0;
-
-#define OPT_SCREENSHOT_OUTPUT 1
-#define OPT_SHOW_ALL_OUTPUTS 2
-#define OPT_SCREENSHOT_ALL_OUTPUTS 3
-
-static void
-display_handle_geometry(void *data,
- struct wl_output *wl_output,
- int x,
- int y,
- int physical_width,
- int physical_height,
- int subpixel,
- const char *make,
- const char *model,
- int transform)
-{
- struct screenshooter_output *output;
-
- output = wl_output_get_user_data(wl_output);
-
- if (wl_output == output->output) {
- output->offset_x = x;
- output->offset_y = y;
- }
-}
-
-static void
-display_handle_mode(void *data,
- struct wl_output *wl_output,
- uint32_t flags,
- int width,
- int height,
- int refresh)
-{
- struct screenshooter_output *output;
-
- output = wl_output_get_user_data(wl_output);
-
- if (wl_output == output->output && (flags & WL_OUTPUT_MODE_CURRENT)) {
- output->width = width;
- output->height = height;
- }
-}
-
-static void
-display_handle_done(void *data, struct wl_output *wl_output)
-{
-
-}
-
-static void
-display_handle_scale(void *data, struct wl_output *wl_output,
- int32_t scale)
-{
- struct screenshooter_output *output = data;
- output->scale = scale;
-}
-
-
-static const struct wl_output_listener output_listener = {
- display_handle_geometry,
- display_handle_mode,
- display_handle_done,
- display_handle_scale,
- NULL,
- NULL
-};
-
-static void
-handle_xdg_output_v1_logical_position(void *data, struct zxdg_output_v1 *output,
- int32_t x, int32_t y)
-{
-}
-
-static void
-handle_xdg_output_v1_logical_size(void *data, struct zxdg_output_v1 *output,
- int32_t width, int32_t height)
-{
-}
-
-static void
-handle_xdg_output_v1_done(void *data, struct zxdg_output_v1 *output)
-{
- /* Don't bother waiting for this; there's no good reason a
- * compositor will wait more than one roundtrip before sending
- * these initial events. */
-}
-
-static void
-handle_xdg_output_v1_name(void *data, struct zxdg_output_v1 *output,
- const char *name)
-{
- struct xdg_output_v1_info *xdg_output = data;
- xdg_output->name = strdup(name);
-}
-
-static void
-handle_xdg_output_v1_description(void *data, struct zxdg_output_v1 *output,
- const char *description)
-{
- struct xdg_output_v1_info *xdg_output = data;
- xdg_output->description = strdup(description);
-}
-
-static const struct zxdg_output_v1_listener xdg_output_v1_listener = {
- .logical_position = handle_xdg_output_v1_logical_position,
- .logical_size = handle_xdg_output_v1_logical_size,
- .done = handle_xdg_output_v1_done,
- .name = handle_xdg_output_v1_name,
- .description = handle_xdg_output_v1_description,
-};
-
-static void
-add_xdg_output_v1_info(struct screenshooter_data *shooter_data,
- struct screenshooter_output *output)
-{
- struct xdg_output_v1_info *xdg_output = zalloc(sizeof(*xdg_output));
- if (!xdg_output)
- return;
-
- wl_list_insert(&shooter_data->xdg_output_list, &xdg_output->link);
-
- xdg_output->xdg_output =
- zxdg_output_manager_v1_get_xdg_output(shooter_data->xdg_output_manager,
- output->output);
-
- zxdg_output_v1_add_listener(xdg_output->xdg_output,
- &xdg_output_v1_listener, xdg_output);
- xdg_output->output = output;
-}
-
-static void
-screenshot_done(void *data, struct agl_screenshooter *screenshooter, uint32_t status)
-{
- struct screenshooter_data *sh_data = data;
- sh_data->buffer_copy_done = 1;
-}
-
-static const struct agl_screenshooter_listener screenshooter_listener = {
- screenshot_done
-};
-
-static void
-handle_global(void *data, struct wl_registry *registry,
- uint32_t name, const char *interface, uint32_t version)
-{
- struct screenshooter_output *output;
- struct screenshooter_data *sh_data = data;
-
- if (strcmp(interface, "wl_output") == 0) {
- output = zalloc(sizeof(*output));
- if (!output)
- return;
-
- output->output = wl_registry_bind(registry, name,
- &wl_output_interface, 1);
- output->sh_data = sh_data;
- wl_list_insert(&sh_data->output_list, &output->link);
- wl_output_add_listener(output->output, &output_listener, output);
- } else if (strcmp(interface, "wl_shm") == 0) {
- sh_data->shm = wl_registry_bind(registry, name, &wl_shm_interface, 1);
- } else if (strcmp(interface, "agl_screenshooter") == 0) {
- sh_data->screenshooter = wl_registry_bind(registry, name,
- &agl_screenshooter_interface, 1);
-
- agl_screenshooter_add_listener(sh_data->screenshooter,
- &screenshooter_listener, sh_data);
- } else if (strcmp(interface, "zxdg_output_manager_v1") == 0) {
- sh_data->xdg_output_manager = wl_registry_bind(registry, name,
- &zxdg_output_manager_v1_interface, version);
- }
-}
-
-static void
-handle_global_remove(void *data, struct wl_registry *registry, uint32_t name)
-{
- /* XXX: unimplemented */
-}
-
-static const struct wl_registry_listener registry_listener = {
- handle_global,
- handle_global_remove
-};
-
-static struct wl_buffer *
-screenshot_create_shm_buffer(int width, int height, void **data_out,
- struct wl_shm *shm)
-{
- struct wl_shm_pool *pool;
- struct wl_buffer *buffer;
- int fd, size, stride;
- void *data;
-
- stride = width * 4;
- size = stride * height;
-
- fd = os_create_anonymous_file(size);
- if (fd < 0) {
- fprintf(stderr, "creating a buffer file for %d B failed: %s\n",
- size, strerror(errno));
- return NULL;
- }
-
- data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
- if (data == MAP_FAILED) {
- fprintf(stderr, "mmap failed: %s\n", strerror(errno));
- close(fd);
- return NULL;
- }
-
- pool = wl_shm_create_pool(shm, fd, size);
- close(fd);
- buffer = wl_shm_pool_create_buffer(pool, 0, width, height, stride,
- WL_SHM_FORMAT_XRGB8888);
- wl_shm_pool_destroy(pool);
-
- *data_out = data;
-
- return buffer;
-}
-
-static void
-screenshot_write_png_per_output(const struct buffer_size *buff_size,
- struct screenshooter_output *sh_output,
- const char *fn)
-{
- int output_stride, buffer_stride, i;
- cairo_surface_t *surface;
- void *data, *d, *s;
- FILE *fp;
- char filepath[PATH_MAX];
- char *filename_to_write;
-
- buffer_stride = buff_size->width * 4;
- data = xmalloc(buffer_stride * buff_size->height);
- if (!data)
- return;
-
- output_stride = sh_output->width * 4;
- s = sh_output->data;
- d = data + (sh_output->offset_y - buff_size->min_y) * buffer_stride +
- (sh_output->offset_x - buff_size->min_x) * 4;
-
- for (i = 0; i < sh_output->height; i++) {
- memcpy(d, s, output_stride);
- d += buffer_stride;
- s += output_stride;
- }
-
- surface = cairo_image_surface_create_for_data(data,
- CAIRO_FORMAT_ARGB32,
- buff_size->width,
- buff_size->height,
- buffer_stride);
-
- if (fn)
- str_printf(&filename_to_write, "agl-screenshot-%s-", fn);
- else
- str_printf(&filename_to_write, "agl-screenshot-");
-
- fp = file_create_dated(getenv("XDG_PICTURES_DIR"), filename_to_write,
- ".png", filepath, sizeof(filepath));
- if (fp) {
- fclose(fp);
- cairo_surface_write_to_png(surface, filepath);
- }
-
- cairo_surface_destroy(surface);
- free(filename_to_write);
- free(data);
-}
-
-static void
-screenshot_set_buffer_size_per_output(struct buffer_size *buff_size,
- struct screenshooter_output *output)
-{
- buff_size->min_x = MIN(buff_size->min_x, output->offset_x);
- buff_size->min_y = MIN(buff_size->min_y, output->offset_y);
- buff_size->max_x = MAX(buff_size->max_x, output->offset_x + output->width);
- buff_size->max_y = MAX(buff_size->max_y, output->offset_y + output->height);
-
- buff_size->width = buff_size->max_x - buff_size->min_x;
- buff_size->height = buff_size->max_y - buff_size->min_y;
-}
-
-static void
-screenshot_compute_output_offset(int *pos, struct screenshooter_output *sh_output)
-{
- sh_output->offset_x = *pos;
- *pos += sh_output->width;
-}
-
-static struct screenshooter_output *
-agl_shooter_search_for_output(const char *output_name,
- struct screenshooter_data *sh_data)
-{
- struct screenshooter_output *found_output = NULL;
- struct xdg_output_v1_info *output;
-
- if (!output_name)
- return found_output;
-
- wl_list_for_each(output, &sh_data->xdg_output_list, link) {
- if (output->name && strcmp(output->name, output_name) == 0) {
- found_output = output->output;
- break;
- }
- }
-
- return found_output;
-}
-
-static char *
-agl_shooter_search_get_output_name(struct screenshooter_output *sh_output)
-{
- struct xdg_output_v1_info *output;
- struct screenshooter_data *sh_data;
-
- if (!sh_output)
- return NULL;
-
- sh_data = sh_output->sh_data;
-
- wl_list_for_each(output, &sh_data->xdg_output_list, link) {
- if (output->output == sh_output) {
- return output->name;
- }
- }
-
- return NULL;
-}
-
-static void
-agl_shooter_display_all_outputs(struct screenshooter_data *sh_data)
-{
- struct xdg_output_v1_info *xdg_output;
- wl_list_for_each(xdg_output, &sh_data->xdg_output_list, link) {
- fprintf(stdout, "Output '%s', desc: '%s'\n", xdg_output->name,
- xdg_output->description);
- }
-}
-
-
-static void
-agl_shooter_screenshot_all_outputs(struct screenshooter_data *sh_data)
-{
- struct xdg_output_v1_info *xdg_output;
-
- wl_list_for_each(xdg_output, &sh_data->xdg_output_list, link) {
- struct buffer_size buff_size = {};
- int pos = 0;
- struct screenshooter_output *output = xdg_output->output;
-
- screenshot_compute_output_offset(&pos, output);
- screenshot_set_buffer_size_per_output(&buff_size, output);
-
- output->buffer =
- screenshot_create_shm_buffer(output->width,
- output->height,
- &output->data,
- sh_data->shm);
-
- agl_screenshooter_take_shot(sh_data->screenshooter,
- output->output,
- output->buffer);
-
- sh_data->buffer_copy_done = 0;
- while (!sh_data->buffer_copy_done)
- wl_display_roundtrip(sh_data->display);
-
- screenshot_write_png_per_output(&buff_size, output, xdg_output->name);
- }
-}
-
-static void
-agl_shooter_screenshot_output(struct screenshooter_output *sh_output)
-{
- int pos = 0;
- struct buffer_size buff_size = {};
- struct screenshooter_data *sh_data = sh_output->sh_data;
- char *output_name;
-
- screenshot_compute_output_offset(&pos, sh_output);
- screenshot_set_buffer_size_per_output(&buff_size, sh_output);
-
- sh_output->buffer =
- screenshot_create_shm_buffer(sh_output->width,
- sh_output->height,
- &sh_output->data, sh_data->shm);
-
- agl_screenshooter_take_shot(sh_data->screenshooter,
- sh_output->output,
- sh_output->buffer);
-
- sh_data->buffer_copy_done = 0;
- while (!sh_data->buffer_copy_done)
- wl_display_roundtrip(sh_data->display);
-
- output_name = agl_shooter_search_get_output_name(sh_output);
- assert(output_name);
- screenshot_write_png_per_output(&buff_size, sh_output, output_name);
-}
-
-static void
-agl_shooter_destroy_xdg_output_manager(struct screenshooter_data *sh_data)
-{
- struct xdg_output_v1_info *xdg_output;
-
- wl_list_for_each(xdg_output, &sh_data->xdg_output_list, link) {
- free(xdg_output->name);
- free(xdg_output->description);
- zxdg_output_v1_destroy(xdg_output->xdg_output);
- }
-
- zxdg_output_manager_v1_destroy(sh_data->xdg_output_manager);
-}
-
-static void
-print_usage_and_exit(void)
-{
- fprintf(stderr, "./agl-screenshooter [-o OUTPUT_NAME] [-l] [-a]\n");
-
- fprintf(stderr, "\t-o OUTPUT_NAME -- take a screenshot of the output "
- "specified by OUTPUT_NAME\n");
- fprintf(stderr, "\t-a -- take a screenshot of all the outputs found\n");
- fprintf(stderr, "\t-l -- list all the outputs found\n");
- exit(EXIT_FAILURE);
-}
-
-int main(int argc, char *argv[])
-{
- struct wl_display *display;
- struct wl_registry *registry;
-
- struct screenshooter_data sh_data = {};
- struct screenshooter_output *sh_output = NULL;
- int c, option_index;
-
- char *output_name = NULL;
-
- static struct option long_options[] = {
- {"output", required_argument, 0, 'o' },
- {"list", required_argument, 0, 'l' },
- {"all", required_argument, 0, 'a' },
- {"help", no_argument , 0, 'h' },
- {0, 0, 0, 0}
- };
-
- while ((c = getopt_long(argc, argv, "o:lah",
- long_options, &option_index)) != -1) {
- switch (c) {
- case 'o':
- output_name = optarg;
- opts |= (1 << OPT_SCREENSHOT_OUTPUT);
- break;
- case 'l':
- opts |= (1 << OPT_SHOW_ALL_OUTPUTS);
- break;
- case 'a':
- opts |= (1 << OPT_SCREENSHOT_ALL_OUTPUTS);
- break;
- default:
- print_usage_and_exit();
- }
- }
-
- display = wl_display_connect(NULL);
- if (display == NULL) {
- fprintf(stderr, "failed to create display: %s\n",
- strerror(errno));
- return EXIT_FAILURE;
- }
-
- wl_list_init(&sh_data.output_list);
- wl_list_init(&sh_data.xdg_output_list);
- sh_data.display = display;
-
- registry = wl_display_get_registry(display);
- wl_registry_add_listener(registry, ®istry_listener, &sh_data);
-
- wl_display_dispatch(display);
- wl_display_roundtrip(display);
-
-
- if (sh_data.screenshooter == NULL) {
- fprintf(stderr, "Compositor doesn't support screenshooter\n");
- return EXIT_FAILURE;
- }
-
- wl_list_for_each(sh_output, &sh_data.output_list, link)
- add_xdg_output_v1_info(&sh_data, sh_output);
-
- /* do another round-trip for xdg_output */
- wl_display_roundtrip(sh_data.display);
-
- if (opts & (1 << OPT_SHOW_ALL_OUTPUTS)) {
- agl_shooter_display_all_outputs(&sh_data);
- agl_shooter_destroy_xdg_output_manager(&sh_data);
- return EXIT_SUCCESS;
- }
-
- if (opts & (1 << OPT_SCREENSHOT_ALL_OUTPUTS)) {
- agl_shooter_screenshot_all_outputs(&sh_data);
- agl_shooter_destroy_xdg_output_manager(&sh_data);
- return EXIT_SUCCESS;
- }
-
- sh_output = NULL;
- if (output_name)
- sh_output = agl_shooter_search_for_output(output_name, &sh_data);
-
- if (!sh_output && (opts & (1 << OPT_SCREENSHOT_OUTPUT))) {
- fprintf(stderr, "Could not find an output matching '%s'\n",
- output_name);
- agl_shooter_destroy_xdg_output_manager(&sh_data);
- return EXIT_FAILURE;
- }
-
- /* if we're still here just pick the first one available
- * and use that. Still useful in case we are run without
- * any args whatsoever */
- if (!sh_output)
- sh_output = container_of(sh_data.output_list.next,
- struct screenshooter_output, link);
-
- /* take a screenshot only of that specific output */
- agl_shooter_screenshot_output(sh_output);
- agl_shooter_destroy_xdg_output_manager(&sh_data);
-
- return 0;
-}
Code Review / src / agl-compositor.git / blobdiff