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Allow configuring output mode in rootston

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Fixes #336
This commit is contained in:
Drew DeVault 2017-10-28 15:32:08 -04:00
parent fa9c6ecc53
commit 50e86a0efa
3 changed files with 43 additions and 0 deletions
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4
include/rootston/config.h
View file

@ -9,6 +9,10 @@ struct output_config {
enum wl_output_transform transform;
int x, y;
struct wl_list link;
struct {
int width, height;
float refresh_rate;
} mode;
};
struct device_config {

16
rootston/config.c
View file

@ -1,6 +1,7 @@
#ifndef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200809L
#endif
#include <assert.h>
#include <stdlib.h>
#include <limits.h>
#include <getopt.h>
@ -244,6 +245,21 @@ static int config_ini_handler(void *user, const char *section, const char *name,
} else {
wlr_log(L_ERROR, "got unknown transform value: %s", value);
}
} else if (strcmp(name, "mode") == 0) {
char *end;
oc->mode.width = strtol(value, &end, 10);
assert(*end == 'x');
++end;
oc->mode.height = strtol(end, &end, 10);
if (*end) {
assert(*end == '@');
++end;
oc->mode.refresh_rate = strtof(end, &end);
assert(strcmp("Hz", end) == 0);
}
wlr_log(L_DEBUG, "Configured output %s with mode %dx%d@%f",
oc->name, oc->mode.width, oc->mode.height,
oc->mode.refresh_rate);
}
} else if (strcmp(section, "cursor") == 0) {
if (strcmp(name, "map-to-output") == 0) {

23
rootston/output.c
View file

@ -165,6 +165,26 @@ static void output_frame_notify(struct wl_listener *listener, void *data) {
output->last_frame = desktop->last_frame = now;
}
static void set_mode(struct wlr_output *output, struct output_config *oc) {
struct wlr_output_mode *mode, *best = NULL;
int mhz = (int)(oc->mode.refresh_rate * 1000);
wl_list_for_each(mode, &output->modes, link) {
if (mode->width == oc->mode.width && mode->height == oc->mode.height) {
if (mode->refresh == mhz) {
best = mode;
break;
}
best = mode;
}
}
if (!best) {
wlr_log(L_ERROR, "Configured mode for %s not available", output->name);
} else {
wlr_log(L_DEBUG, "Assigning configured mode to %s", output->name);
wlr_output_set_mode(output, best);
}
}
void output_add_notify(struct wl_listener *listener, void *data) {
struct wlr_output *wlr_output = data;
struct roots_desktop *desktop = wl_container_of(listener, desktop, output_add);
@ -191,6 +211,9 @@ void output_add_notify(struct wl_listener *listener, void *data) {
struct output_config *output_config = config_get_output(config, wlr_output);
if (output_config) {
if (output_config->mode.width) {
set_mode(wlr_output, output_config);
}
wlr_output_transform(wlr_output, output_config->transform);
wlr_output_layout_add(desktop->layout,
wlr_output, output_config->x, output_config->y);