Add output config

sway/config/output.c

@@ -0,0 +1,166 @@
+#define _XOPEN_SOURCE 700
+#include <string.h>
+#include <assert.h>
+#include <wlr/types/wlr_output.h>
+#include "sway/config.h"
+#include "sway/output.h"
+#include "log.h"
+
+int output_name_cmp(const void *item, const void *data) {
+	const struct output_config *output = item;
+	const char *name = data;
+
+	return strcmp(output->name, name);
+}
+
+void merge_output_config(struct output_config *dst, struct output_config *src) {
+	if (src->name) {
+		if (dst->name) {
+			free(dst->name);
+		}
+		dst->name = strdup(src->name);
+	}
+	if (src->enabled != -1) {
+		dst->enabled = src->enabled;
+	}
+	if (src->width != -1) {
+		dst->width = src->width;
+	}
+	if (src->height != -1) {
+		dst->height = src->height;
+	}
+	if (src->x != -1) {
+		dst->x = src->x;
+	}
+	if (src->y != -1) {
+		dst->y = src->y;
+	}
+	if (src->scale != -1) {
+		dst->scale = src->scale;
+	}
+	if (src->background) {
+		if (dst->background) {
+			free(dst->background);
+		}
+		dst->background = strdup(src->background);
+	}
+	if (src->background_option) {
+		if (dst->background_option) {
+			free(dst->background_option);
+		}
+		dst->background_option = strdup(src->background_option);
+	}
+}
+
+static void set_mode(struct wlr_output *output, int width, int height,
+		float refresh_rate) {
+	struct wlr_output_mode *mode, *best = NULL;
+	int mhz = (int)(refresh_rate * 1000);
+	wl_list_for_each(mode, &output->modes, link) {
+		if (mode->width == width && mode->height == height) {
+			if (mode->refresh == mhz) {
+				best = mode;
+				break;
+			}
+			best = mode;
+		}
+	}
+	if (!best) {
+		sway_log(L_ERROR, "Configured mode for %s not available", output->name);
+	} else {
+		sway_log(L_DEBUG, "Assigning configured mode to %s", output->name);
+		wlr_output_set_mode(output, best);
+	}
+}
+
+void apply_output_config(struct output_config *oc, swayc_t *output) {
+	assert(output->type == C_OUTPUT);
+
+	if (oc && oc->enabled == 0) {
+		destroy_output(output);
+		return;
+	}
+
+	struct wlr_output *wlr_output = output->sway_output->wlr_output;
+	if (oc && oc->width > 0 && oc->height > 0) {
+		set_mode(wlr_output, oc->width, oc->height, oc->refresh_rate);
+	}
+	if (oc && oc->scale > 0) {
+		wlr_output->scale = oc->scale;
+	}
+	if (oc && oc->transform != WL_OUTPUT_TRANSFORM_NORMAL) {
+		wlr_output_transform(wlr_output, oc->transform);
+	}
+
+	// Find position for it
+	if (oc && oc->x != -1 && oc->y != -1) {
+		sway_log(L_DEBUG, "Set %s position to %d, %d", oc->name, oc->x, oc->y);
+		output->x = oc->x;
+		output->y = oc->y;
+	} else {
+		int x = 0;
+		for (int i = 0; i < root_container.children->length; ++i) {
+			swayc_t *c = root_container.children->items[i];
+			if (c->type == C_OUTPUT) {
+				if (c->width + c->x > x) {
+					x = c->width + c->x;
+				}
+			}
+		}
+		output->x = x;
+	}
+
+	if (!oc || !oc->background) {
+		// Look for a * config for background
+		int i = list_seq_find(config->output_configs, output_name_cmp, "*");
+		if (i >= 0) {
+			oc = config->output_configs->items[i];
+		} else {
+			oc = NULL;
+		}
+	}
+
+	int output_i;
+	for (output_i = 0; output_i < root_container.children->length; ++output_i) {
+		if (root_container.children->items[output_i] == output) {
+			break;
+		}
+	}
+
+	if (oc && oc->background) {
+		// TODO: swaybg
+		/*if (output->bg_pid != 0) {
+			terminate_swaybg(output->bg_pid);
+		}
+
+		sway_log(L_DEBUG, "Setting background for output %d to %s", output_i, oc->background);
+
+		size_t bufsize = 12;
+		char output_id[bufsize];
+		snprintf(output_id, bufsize, "%d", output_i);
+		output_id[bufsize-1] = 0;
+
+		char *const cmd[] = {
+			"swaybg",
+			output_id,
+			oc->background,
+			oc->background_option,
+			NULL,
+		};
+
+		output->bg_pid = fork();
+		if (output->bg_pid == 0) {
+			execvp(cmd[0], cmd);
+		}*/
+	}
+}
+
+void free_output_config(struct output_config *oc) {
+	if (!oc) {
+		return;
+	}
+	free(oc->name);
+	free(oc->background);
+	free(oc->background_option);
+	free(oc);
+}