3106ef23a7
This removes `output_find_config`, which would take the first matching output config it found. This is fine if only a name output config, identifier output config, or even just wildcard exist, but if there is a name output config and identifier output config, they are not merged. Instead, this introduces find_output_config, which is just a wrapper for `get_output_config`. This ensures that both the name and identifier output configs are respected. This fixes the following case: - For simplicity in this example, remove all output configs from config - Run `swaymsg output <name> bg #ff0000 solid_color` - Run `swaymsg output <identifier> scale 2` - Disconnect and reconnect output Without this, the output will have the background, but not the scale. With this, the output will have both the background and scale
499 lines
14 KiB
C
499 lines
14 KiB
C
#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 "log.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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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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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->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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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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}
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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 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, oc->transform, oc->background,
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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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static void handle_swaybg_client_destroy(struct wl_listener *listener,
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void *data) {
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struct sway_output *output =
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wl_container_of(listener, output, swaybg_client_destroy);
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wl_list_remove(&output->swaybg_client_destroy.link);
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wl_list_init(&output->swaybg_client_destroy.link);
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output->swaybg_client = NULL;
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}
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static bool set_cloexec(int fd, bool cloexec) {
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int flags = fcntl(fd, F_GETFD);
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if (flags == -1) {
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sway_log_errno(SWAY_ERROR, "fcntl failed");
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return false;
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}
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if (cloexec) {
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flags = flags | FD_CLOEXEC;
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} else {
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flags = flags & ~FD_CLOEXEC;
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}
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if (fcntl(fd, F_SETFD, flags) == -1) {
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sway_log_errno(SWAY_ERROR, "fcntl failed");
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return false;
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}
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return true;
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}
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static bool spawn_swaybg(struct sway_output *output, char *const cmd[]) {
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int sockets[2];
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if (socketpair(AF_UNIX, SOCK_STREAM, 0, sockets) != 0) {
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sway_log_errno(SWAY_ERROR, "socketpair failed");
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return false;
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}
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if (!set_cloexec(sockets[0], true) || !set_cloexec(sockets[1], true)) {
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return false;
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}
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output->swaybg_client = wl_client_create(server.wl_display, sockets[0]);
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if (output->swaybg_client == NULL) {
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sway_log_errno(SWAY_ERROR, "wl_client_create failed");
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return false;
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}
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output->swaybg_client_destroy.notify = handle_swaybg_client_destroy;
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wl_client_add_destroy_listener(output->swaybg_client,
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&output->swaybg_client_destroy);
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pid_t pid = fork();
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if (pid < 0) {
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sway_log_errno(SWAY_ERROR, "fork failed");
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return false;
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} else if (pid == 0) {
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pid = fork();
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if (pid < 0) {
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sway_log_errno(SWAY_ERROR, "fork failed");
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_exit(EXIT_FAILURE);
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} else if (pid == 0) {
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if (!set_cloexec(sockets[1], false)) {
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_exit(EXIT_FAILURE);
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}
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char wayland_socket_str[16];
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snprintf(wayland_socket_str, sizeof(wayland_socket_str),
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"%d", sockets[1]);
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setenv("WAYLAND_SOCKET", wayland_socket_str, true);
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execvp(cmd[0], cmd);
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sway_log_errno(SWAY_ERROR, "execvp failed");
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_exit(EXIT_FAILURE);
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}
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_exit(EXIT_SUCCESS);
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}
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if (close(sockets[1]) != 0) {
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sway_log_errno(SWAY_ERROR, "close failed");
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return false;
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}
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if (waitpid(pid, NULL, 0) < 0) {
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sway_log_errno(SWAY_ERROR, "waitpid failed");
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return false;
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}
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return true;
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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->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 (output->swaybg_client != NULL) {
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wl_client_destroy(output->swaybg_client);
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}
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if (oc && oc->background && config->swaybg_command) {
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sway_log(SWAY_DEBUG, "Setting background for output %s to %s",
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wlr_output->name, oc->background);
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char *const cmd[] = {
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config->swaybg_command,
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wlr_output->name,
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oc->background,
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oc->background_option,
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oc->background_fallback ? oc->background_fallback : NULL,
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NULL,
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};
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if (!spawn_swaybg(output, cmd)) {
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return false;
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}
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}
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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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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_name = NULL;
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int 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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struct output_config *oc_id = NULL;
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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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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_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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size_t length = snprintf(NULL, 0, "%s on %s", identifier, name) + 1;
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char *temp = malloc(length);
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snprintf(temp, length, "%s on %s", identifier, name);
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free(result->name);
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result->name = temp;
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merge_output_config(result, oc_name);
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merge_output_config(result, oc_id);
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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 if (config->reloading) {
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// Neither config exists, but we need to reset the output so create a
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// default config for the output and if a wildcard config exists, merge
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// that on top
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free(result->name);
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result->name = strdup("*");
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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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merge_output_config(result, config->output_configs->items[i]);
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}
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} else {
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free_output_config(result);
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result = NULL;
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}
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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 = new_output_config(oc->name);
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merge_output_config(current, oc);
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if (wildcard) {
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struct output_config *tmp = get_output_config(id, sway_output);
|
|
if (tmp) {
|
|
free_output_config(current);
|
|
current = tmp;
|
|
}
|
|
}
|
|
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);
|
|
}
|