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631 lines
18 KiB
631 lines
18 KiB
#define _POSIX_C_SOURCE 200809L
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#include <assert.h>
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#include <fcntl.h>
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#include <stdbool.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <wlr/types/wlr_output_layout.h>
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#include <wlr/types/wlr_output.h>
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#include "sway/config.h"
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#include "sway/output.h"
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#include "sway/tree/root.h"
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#include "log.h"
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#include "util.h"
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int output_name_cmp(const void *item, const void *data) {
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const struct output_config *output = item;
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const char *name = data;
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return strcmp(output->name, name);
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}
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void output_get_identifier(char *identifier, size_t len,
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struct sway_output *output) {
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struct wlr_output *wlr_output = output->wlr_output;
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snprintf(identifier, len, "%s %s %s", wlr_output->make, wlr_output->model,
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wlr_output->serial);
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}
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struct output_config *new_output_config(const char *name) {
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struct output_config *oc = calloc(1, sizeof(struct output_config));
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if (oc == NULL) {
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return NULL;
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}
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oc->name = strdup(name);
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if (oc->name == NULL) {
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free(oc);
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return NULL;
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}
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oc->enabled = -1;
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oc->width = oc->height = -1;
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oc->refresh_rate = -1;
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oc->x = oc->y = -1;
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oc->scale = -1;
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oc->transform = -1;
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oc->subpixel = WL_OUTPUT_SUBPIXEL_UNKNOWN;
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return oc;
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}
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void merge_output_config(struct output_config *dst, struct output_config *src) {
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if (src->enabled != -1) {
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dst->enabled = src->enabled;
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}
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if (src->width != -1) {
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dst->width = src->width;
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}
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if (src->height != -1) {
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dst->height = src->height;
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}
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if (src->x != -1) {
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dst->x = src->x;
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}
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if (src->y != -1) {
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dst->y = src->y;
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}
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if (src->scale != -1) {
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dst->scale = src->scale;
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}
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if (src->subpixel != WL_OUTPUT_SUBPIXEL_UNKNOWN) {
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dst->subpixel = src->subpixel;
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}
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if (src->refresh_rate != -1) {
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dst->refresh_rate = src->refresh_rate;
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}
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if (src->transform != -1) {
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dst->transform = src->transform;
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}
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if (src->background) {
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free(dst->background);
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dst->background = strdup(src->background);
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}
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if (src->background_option) {
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free(dst->background_option);
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dst->background_option = strdup(src->background_option);
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}
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if (src->background_fallback) {
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free(dst->background_fallback);
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dst->background_fallback = strdup(src->background_fallback);
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}
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if (src->dpms_state != 0) {
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dst->dpms_state = src->dpms_state;
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}
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}
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static void merge_wildcard_on_all(struct output_config *wildcard) {
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for (int i = 0; i < config->output_configs->length; i++) {
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struct output_config *oc = config->output_configs->items[i];
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if (strcmp(wildcard->name, oc->name) != 0) {
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sway_log(SWAY_DEBUG, "Merging output * config on %s", oc->name);
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merge_output_config(oc, wildcard);
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}
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}
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}
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static void merge_id_on_name(struct output_config *oc) {
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char *id_on_name = NULL;
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char id[128];
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char *name = NULL;
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struct sway_output *output;
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wl_list_for_each(output, &root->all_outputs, link) {
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name = output->wlr_output->name;
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output_get_identifier(id, sizeof(id), output);
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if (strcmp(name, oc->name) != 0 || strcmp(id, oc->name) != 0) {
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size_t length = snprintf(NULL, 0, "%s on %s", id, name) + 1;
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id_on_name = malloc(length);
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if (!id_on_name) {
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sway_log(SWAY_ERROR, "Failed to allocate id on name string");
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return;
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}
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snprintf(id_on_name, length, "%s on %s", id, name);
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break;
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}
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}
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if (!id_on_name) {
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return;
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}
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int i = list_seq_find(config->output_configs, output_name_cmp, id_on_name);
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if (i >= 0) {
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sway_log(SWAY_DEBUG, "Merging on top of existing id on name config");
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merge_output_config(config->output_configs->items[i], oc);
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} else {
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// If both a name and identifier config, exist generate an id on name
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int ni = list_seq_find(config->output_configs, output_name_cmp, name);
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int ii = list_seq_find(config->output_configs, output_name_cmp, id);
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if ((ni >= 0 && ii >= 0) || (ni >= 0 && strcmp(oc->name, id) == 0)
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|| (ii >= 0 && strcmp(oc->name, name) == 0)) {
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struct output_config *ion_oc = new_output_config(id_on_name);
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if (ni >= 0) {
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merge_output_config(ion_oc, config->output_configs->items[ni]);
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}
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if (ii >= 0) {
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merge_output_config(ion_oc, config->output_configs->items[ii]);
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}
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merge_output_config(ion_oc, oc);
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list_add(config->output_configs, ion_oc);
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sway_log(SWAY_DEBUG, "Generated id on name output config \"%s\""
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" (enabled: %d) (%dx%d@%fHz position %d,%d scale %f "
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"transform %d) (bg %s %s) (dpms %d)", ion_oc->name,
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ion_oc->enabled, ion_oc->width, ion_oc->height,
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ion_oc->refresh_rate, ion_oc->x, ion_oc->y, ion_oc->scale,
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ion_oc->transform, ion_oc->background,
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ion_oc->background_option, ion_oc->dpms_state);
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}
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}
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free(id_on_name);
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}
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struct output_config *store_output_config(struct output_config *oc) {
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bool wildcard = strcmp(oc->name, "*") == 0;
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if (wildcard) {
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merge_wildcard_on_all(oc);
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} else {
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merge_id_on_name(oc);
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}
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int i = list_seq_find(config->output_configs, output_name_cmp, oc->name);
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if (i >= 0) {
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sway_log(SWAY_DEBUG, "Merging on top of existing output config");
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struct output_config *current = config->output_configs->items[i];
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merge_output_config(current, oc);
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free_output_config(oc);
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oc = current;
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} else if (!wildcard) {
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sway_log(SWAY_DEBUG, "Adding non-wildcard output config");
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i = list_seq_find(config->output_configs, output_name_cmp, "*");
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if (i >= 0) {
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sway_log(SWAY_DEBUG, "Merging on top of output * config");
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struct output_config *current = new_output_config(oc->name);
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merge_output_config(current, config->output_configs->items[i]);
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merge_output_config(current, oc);
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free_output_config(oc);
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oc = current;
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}
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list_add(config->output_configs, oc);
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} else {
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// New wildcard config. Just add it
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sway_log(SWAY_DEBUG, "Adding output * config");
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list_add(config->output_configs, oc);
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}
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sway_log(SWAY_DEBUG, "Config stored for output %s (enabled: %d) (%dx%d@%fHz "
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"position %d,%d scale %f subpixel %s transform %d) (bg %s %s) (dpms %d)",
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oc->name, oc->enabled, oc->width, oc->height, oc->refresh_rate,
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oc->x, oc->y, oc->scale, sway_wl_output_subpixel_to_string(oc->subpixel),
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oc->transform, oc->background, oc->background_option, oc->dpms_state);
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return oc;
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}
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static bool set_mode(struct wlr_output *output, int width, int height,
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float refresh_rate) {
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int mhz = (int)(refresh_rate * 1000);
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if (wl_list_empty(&output->modes)) {
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sway_log(SWAY_DEBUG, "Assigning custom mode to %s", output->name);
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return wlr_output_set_custom_mode(output, width, height, mhz);
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}
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struct wlr_output_mode *mode, *best = NULL;
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wl_list_for_each(mode, &output->modes, link) {
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if (mode->width == width && mode->height == height) {
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if (mode->refresh == mhz) {
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best = mode;
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break;
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}
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best = mode;
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}
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}
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if (!best) {
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sway_log(SWAY_ERROR, "Configured mode for %s not available", output->name);
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sway_log(SWAY_INFO, "Picking default mode instead");
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best = wl_container_of(output->modes.prev, mode, link);
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} else {
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sway_log(SWAY_DEBUG, "Assigning configured mode to %s", output->name);
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}
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return wlr_output_set_mode(output, best);
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}
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bool apply_output_config(struct output_config *oc, struct sway_output *output) {
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if (output == root->noop_output) {
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return false;
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}
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struct wlr_output *wlr_output = output->wlr_output;
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if (oc && !oc->enabled) {
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// Output is configured to be disabled
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if (output->enabled) {
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output_disable(output);
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wlr_output_layout_remove(root->output_layout, wlr_output);
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}
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wlr_output_enable(wlr_output, false);
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return true;
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} else if (!output->enabled) {
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// Output is not enabled. Enable it, output_enable will call us again.
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if (!oc || oc->dpms_state != DPMS_OFF) {
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wlr_output_enable(wlr_output, true);
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}
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output_enable(output, oc);
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return true;
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}
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if (oc && oc->dpms_state == DPMS_ON) {
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sway_log(SWAY_DEBUG, "Turning on screen");
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wlr_output_enable(wlr_output, true);
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}
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bool modeset_success;
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if (oc && oc->width > 0 && oc->height > 0) {
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sway_log(SWAY_DEBUG, "Set %s mode to %dx%d (%f GHz)", oc->name, oc->width,
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oc->height, oc->refresh_rate);
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modeset_success =
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set_mode(wlr_output, oc->width, oc->height, oc->refresh_rate);
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} else if (!wl_list_empty(&wlr_output->modes)) {
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struct wlr_output_mode *mode =
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wl_container_of(wlr_output->modes.prev, mode, link);
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modeset_success = wlr_output_set_mode(wlr_output, mode);
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} else {
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// Output doesn't support modes
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modeset_success = true;
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}
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if (!modeset_success) {
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// Failed to modeset, maybe the output is missing a CRTC. Leave the
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// output disabled for now and try again when the output gets the mode
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// we asked for.
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sway_log(SWAY_ERROR, "Failed to modeset output %s", wlr_output->name);
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return false;
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}
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if (oc && oc->scale > 0) {
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sway_log(SWAY_DEBUG, "Set %s scale to %f", oc->name, oc->scale);
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wlr_output_set_scale(wlr_output, oc->scale);
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}
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if (oc && (oc->subpixel != WL_OUTPUT_SUBPIXEL_UNKNOWN || config->reloading)) {
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sway_log(SWAY_DEBUG, "Set %s subpixel to %s", oc->name,
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sway_wl_output_subpixel_to_string(oc->subpixel));
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wlr_output_set_subpixel(wlr_output, oc->subpixel);
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output_damage_whole(output);
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}
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if (oc && oc->transform >= 0) {
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sway_log(SWAY_DEBUG, "Set %s transform to %d", oc->name, oc->transform);
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wlr_output_set_transform(wlr_output, oc->transform);
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}
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// Find position for it
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if (oc && (oc->x != -1 || oc->y != -1)) {
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sway_log(SWAY_DEBUG, "Set %s position to %d, %d", oc->name, oc->x, oc->y);
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wlr_output_layout_add(root->output_layout, wlr_output, oc->x, oc->y);
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} else {
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wlr_output_layout_add_auto(root->output_layout, wlr_output);
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}
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// Update output->{lx, ly, width, height}
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struct wlr_box *output_box =
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wlr_output_layout_get_box(root->output_layout, wlr_output);
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output->lx = output_box->x;
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output->ly = output_box->y;
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wlr_output_transformed_resolution(wlr_output,
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&output->width, &output->height);
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if (oc && oc->dpms_state == DPMS_OFF) {
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sway_log(SWAY_DEBUG, "Turning off screen");
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wlr_output_enable(wlr_output, false);
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}
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return true;
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}
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static void default_output_config(struct output_config *oc,
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struct wlr_output *wlr_output) {
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oc->enabled = 1;
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if (!wl_list_empty(&wlr_output->modes)) {
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struct wlr_output_mode *mode =
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wl_container_of(wlr_output->modes.prev, mode, link);
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oc->width = mode->width;
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oc->height = mode->height;
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oc->refresh_rate = mode->refresh;
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}
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oc->x = oc->y = -1;
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oc->scale = 1;
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struct sway_output *output = wlr_output->data;
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oc->subpixel = output->detected_subpixel;
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oc->transform = WL_OUTPUT_TRANSFORM_NORMAL;
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oc->dpms_state = DPMS_ON;
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}
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static struct output_config *get_output_config(char *identifier,
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struct sway_output *sway_output) {
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const char *name = sway_output->wlr_output->name;
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struct output_config *oc_id_on_name = NULL;
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struct output_config *oc_name = NULL;
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struct output_config *oc_id = NULL;
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size_t length = snprintf(NULL, 0, "%s on %s", identifier, name) + 1;
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char *id_on_name = malloc(length);
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snprintf(id_on_name, length, "%s on %s", identifier, name);
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int i = list_seq_find(config->output_configs, output_name_cmp, id_on_name);
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if (i >= 0) {
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oc_id_on_name = config->output_configs->items[i];
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} else {
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i = list_seq_find(config->output_configs, output_name_cmp, name);
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if (i >= 0) {
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oc_name = config->output_configs->items[i];
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}
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i = list_seq_find(config->output_configs, output_name_cmp, identifier);
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if (i >= 0) {
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oc_id = config->output_configs->items[i];
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}
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}
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struct output_config *result = new_output_config("temp");
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if (config->reloading) {
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default_output_config(result, sway_output->wlr_output);
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}
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if (oc_id_on_name) {
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// Already have an identifier on name config, use that
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free(result->name);
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result->name = strdup(id_on_name);
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merge_output_config(result, oc_id_on_name);
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} else if (oc_name && oc_id) {
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// Generate a config named `<identifier> on <name>` which contains a
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// merged copy of the identifier on name. This will make sure that both
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// identifier and name configs are respected, with identifier getting
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// priority
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struct output_config *temp = new_output_config(id_on_name);
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merge_output_config(temp, oc_name);
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merge_output_config(temp, oc_id);
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list_add(config->output_configs, temp);
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free(result->name);
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result->name = strdup(id_on_name);
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merge_output_config(result, temp);
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sway_log(SWAY_DEBUG, "Generated output config \"%s\" (enabled: %d)"
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" (%dx%d@%fHz position %d,%d scale %f transform %d) (bg %s %s)"
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" (dpms %d)", result->name, result->enabled, result->width,
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result->height, result->refresh_rate, result->x, result->y,
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result->scale, result->transform, result->background,
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result->background_option, result->dpms_state);
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} else if (oc_name) {
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// No identifier config, just return a copy of the name config
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free(result->name);
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result->name = strdup(name);
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merge_output_config(result, oc_name);
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} else if (oc_id) {
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// No name config, just return a copy of the identifier config
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free(result->name);
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result->name = strdup(identifier);
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merge_output_config(result, oc_id);
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} else {
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i = list_seq_find(config->output_configs, output_name_cmp, "*");
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if (i >= 0) {
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// No name or identifier config, but there is a wildcard config
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free(result->name);
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result->name = strdup("*");
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merge_output_config(result, config->output_configs->items[i]);
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} else if (!config->reloading) {
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// No name, identifier, or wildcard config. Since we are not
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// reloading with defaults, the output config will be empty, so
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// just return NULL
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free_output_config(result);
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result = NULL;
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}
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}
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free(id_on_name);
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return result;
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}
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struct output_config *find_output_config(struct sway_output *output) {
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char id[128];
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output_get_identifier(id, sizeof(id), output);
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return get_output_config(id, output);
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}
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void apply_output_config_to_outputs(struct output_config *oc) {
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// Try to find the output container and apply configuration now. If
|
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// this is during startup then there will be no container and config
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// will be applied during normal "new output" event from wlroots.
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bool wildcard = strcmp(oc->name, "*") == 0;
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char id[128];
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struct sway_output *sway_output;
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wl_list_for_each(sway_output, &root->all_outputs, link) {
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char *name = sway_output->wlr_output->name;
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output_get_identifier(id, sizeof(id), sway_output);
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if (wildcard || !strcmp(name, oc->name) || !strcmp(id, oc->name)) {
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struct output_config *current = get_output_config(id, sway_output);
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if (!current) {
|
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// No stored output config matched, apply oc directly
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sway_log(SWAY_DEBUG, "Applying oc directly");
|
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current = new_output_config(oc->name);
|
|
merge_output_config(current, oc);
|
|
}
|
|
apply_output_config(current, sway_output);
|
|
free_output_config(current);
|
|
|
|
if (!wildcard) {
|
|
// Stop looking if the output config isn't applicable to all
|
|
// outputs
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void reset_outputs(void) {
|
|
struct output_config *oc = NULL;
|
|
int i = list_seq_find(config->output_configs, output_name_cmp, "*");
|
|
if (i >= 0) {
|
|
oc = config->output_configs->items[i];
|
|
} else {
|
|
oc = store_output_config(new_output_config("*"));
|
|
}
|
|
apply_output_config_to_outputs(oc);
|
|
}
|
|
|
|
void free_output_config(struct output_config *oc) {
|
|
if (!oc) {
|
|
return;
|
|
}
|
|
free(oc->name);
|
|
free(oc->background);
|
|
free(oc->background_option);
|
|
free(oc);
|
|
}
|
|
|
|
static void handle_swaybg_client_destroy(struct wl_listener *listener,
|
|
void *data) {
|
|
wl_list_remove(&config->swaybg_client_destroy.link);
|
|
wl_list_init(&config->swaybg_client_destroy.link);
|
|
config->swaybg_client = NULL;
|
|
}
|
|
|
|
static bool set_cloexec(int fd, bool cloexec) {
|
|
int flags = fcntl(fd, F_GETFD);
|
|
if (flags == -1) {
|
|
sway_log_errno(SWAY_ERROR, "fcntl failed");
|
|
return false;
|
|
}
|
|
if (cloexec) {
|
|
flags = flags | FD_CLOEXEC;
|
|
} else {
|
|
flags = flags & ~FD_CLOEXEC;
|
|
}
|
|
if (fcntl(fd, F_SETFD, flags) == -1) {
|
|
sway_log_errno(SWAY_ERROR, "fcntl failed");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool _spawn_swaybg(char **command) {
|
|
if (config->swaybg_client != NULL) {
|
|
wl_client_destroy(config->swaybg_client);
|
|
}
|
|
int sockets[2];
|
|
if (socketpair(AF_UNIX, SOCK_STREAM, 0, sockets) != 0) {
|
|
sway_log_errno(SWAY_ERROR, "socketpair failed");
|
|
return false;
|
|
}
|
|
if (!set_cloexec(sockets[0], true) || !set_cloexec(sockets[1], true)) {
|
|
return false;
|
|
}
|
|
|
|
config->swaybg_client = wl_client_create(server.wl_display, sockets[0]);
|
|
if (config->swaybg_client == NULL) {
|
|
sway_log_errno(SWAY_ERROR, "wl_client_create failed");
|
|
return false;
|
|
}
|
|
|
|
config->swaybg_client_destroy.notify = handle_swaybg_client_destroy;
|
|
wl_client_add_destroy_listener(config->swaybg_client,
|
|
&config->swaybg_client_destroy);
|
|
|
|
pid_t pid = fork();
|
|
if (pid < 0) {
|
|
sway_log_errno(SWAY_ERROR, "fork failed");
|
|
return false;
|
|
} else if (pid == 0) {
|
|
pid = fork();
|
|
if (pid < 0) {
|
|
sway_log_errno(SWAY_ERROR, "fork failed");
|
|
_exit(EXIT_FAILURE);
|
|
} else if (pid == 0) {
|
|
if (!set_cloexec(sockets[1], false)) {
|
|
_exit(EXIT_FAILURE);
|
|
}
|
|
|
|
char wayland_socket_str[16];
|
|
snprintf(wayland_socket_str, sizeof(wayland_socket_str),
|
|
"%d", sockets[1]);
|
|
setenv("WAYLAND_SOCKET", wayland_socket_str, true);
|
|
|
|
execvp(command[0], command);
|
|
sway_log_errno(SWAY_ERROR, "execvp failed");
|
|
_exit(EXIT_FAILURE);
|
|
}
|
|
_exit(EXIT_SUCCESS);
|
|
}
|
|
|
|
if (close(sockets[1]) != 0) {
|
|
sway_log_errno(SWAY_ERROR, "close failed");
|
|
return false;
|
|
}
|
|
if (waitpid(pid, NULL, 0) < 0) {
|
|
sway_log_errno(SWAY_ERROR, "waitpid failed");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool spawn_swaybg(void) {
|
|
if (!config->swaybg_command) {
|
|
return true;
|
|
}
|
|
|
|
size_t length = 2;
|
|
for (int i = 0; i < config->output_configs->length; i++) {
|
|
struct output_config *oc = config->output_configs->items[i];
|
|
if (!oc->background) {
|
|
continue;
|
|
}
|
|
if (strcmp(oc->background_option, "solid_color") == 0) {
|
|
length += 4;
|
|
} else if (oc->background_fallback) {
|
|
length += 8;
|
|
} else {
|
|
length += 6;
|
|
}
|
|
}
|
|
|
|
char **cmd = calloc(1, sizeof(char **) * length);
|
|
if (!cmd) {
|
|
sway_log(SWAY_ERROR, "Failed to allocate spawn_swaybg command");
|
|
return false;
|
|
}
|
|
|
|
size_t i = 0;
|
|
cmd[i++] = config->swaybg_command;
|
|
for (int j = 0; j < config->output_configs->length; j++) {
|
|
struct output_config *oc = config->output_configs->items[j];
|
|
if (!oc->background) {
|
|
continue;
|
|
}
|
|
if (strcmp(oc->background_option, "solid_color") == 0) {
|
|
cmd[i++] = "-o";
|
|
cmd[i++] = oc->name;
|
|
cmd[i++] = "-c";
|
|
cmd[i++] = oc->background;
|
|
} else {
|
|
cmd[i++] = "-o";
|
|
cmd[i++] = oc->name;
|
|
cmd[i++] = "-i";
|
|
cmd[i++] = oc->background;
|
|
cmd[i++] = "-m";
|
|
cmd[i++] = oc->background_option;
|
|
if (oc->background_fallback) {
|
|
cmd[i++] = "-c";
|
|
cmd[i++] = oc->background_fallback;
|
|
}
|
|
}
|
|
assert(i <= length);
|
|
}
|
|
|
|
for (size_t k = 0; k < i; k++) {
|
|
sway_log(SWAY_DEBUG, "spawn_swaybg cmd[%zd] = %s", k, cmd[k]);
|
|
}
|
|
|
|
bool result = _spawn_swaybg(cmd);
|
|
free(cmd);
|
|
return result;
|
|
}
|