swayfx/sway/commands/output.c
Simon Ser 5d692b0581 Add an adaptive_sync output command
This enables/disables adaptive synchronization on the output.

For now, the default is disabled because it might cause flickering on
some hardware if clients don't submit frames at regular enough
intervals. In the future an "auto" option will only enable adaptive sync
if a fullscreen client opts-in via a Wayland protocol.
2020-03-07 00:32:04 +01:00

121 lines
3.5 KiB
C

#include <strings.h>
#include "sway/commands.h"
#include "sway/config.h"
#include "sway/output.h"
#include "list.h"
#include "log.h"
// must be in order for the bsearch
static struct cmd_handler output_handlers[] = {
{ "adaptive_sync", output_cmd_adaptive_sync },
{ "background", output_cmd_background },
{ "bg", output_cmd_background },
{ "disable", output_cmd_disable },
{ "dpms", output_cmd_dpms },
{ "enable", output_cmd_enable },
{ "max_render_time", output_cmd_max_render_time },
{ "mode", output_cmd_mode },
{ "pos", output_cmd_position },
{ "position", output_cmd_position },
{ "res", output_cmd_mode },
{ "resolution", output_cmd_mode },
{ "scale", output_cmd_scale },
{ "scale_filter", output_cmd_scale_filter },
{ "subpixel", output_cmd_subpixel },
{ "toggle", output_cmd_toggle },
{ "transform", output_cmd_transform },
};
struct cmd_results *cmd_output(int argc, char **argv) {
struct cmd_results *error = checkarg(argc, "output", EXPECTED_AT_LEAST, 1);
if (error != NULL) {
return error;
}
// The NOOP-1 output is a dummy output used when there's no outputs
// connected. It should never be configured.
if (strcasecmp(argv[0], root->noop_output->wlr_output->name) == 0) {
return cmd_results_new(CMD_FAILURE,
"Refusing to configure the no op output");
}
struct output_config *output = NULL;
if (strcmp(argv[0], "-") == 0 || strcmp(argv[0], "--") == 0) {
if (config->reading) {
return cmd_results_new(CMD_FAILURE,
"Current output alias (%s) cannot be used in the config",
argv[0]);
}
struct sway_output *sway_output = config->handler_context.node ?
node_get_output(config->handler_context.node) : NULL;
if (!sway_output) {
return cmd_results_new(CMD_FAILURE, "Unknown output");
}
if (sway_output == root->noop_output) {
return cmd_results_new(CMD_FAILURE,
"Refusing to configure the no op output");
}
if (strcmp(argv[0], "-") == 0) {
output = new_output_config(sway_output->wlr_output->name);
} else {
char identifier[128];
output_get_identifier(identifier, 128, sway_output);
output = new_output_config(identifier);
}
} else {
output = new_output_config(argv[0]);
}
if (!output) {
sway_log(SWAY_ERROR, "Failed to allocate output config");
return NULL;
}
argc--; argv++;
config->handler_context.output_config = output;
while (argc > 0) {
config->handler_context.leftovers.argc = 0;
config->handler_context.leftovers.argv = NULL;
if (find_handler(*argv, output_handlers, sizeof(output_handlers))) {
error = config_subcommand(argv, argc, output_handlers,
sizeof(output_handlers));
} else {
error = cmd_results_new(CMD_INVALID,
"Invalid output subcommand: %s.", *argv);
}
if (error != NULL) {
goto fail;
}
argc = config->handler_context.leftovers.argc;
argv = config->handler_context.leftovers.argv;
}
config->handler_context.output_config = NULL;
config->handler_context.leftovers.argc = 0;
config->handler_context.leftovers.argv = NULL;
bool background = output->background;
output = store_output_config(output);
// If reloading, the output configs will be applied after reading the
// entire config and before the deferred commands so that an auto generated
// workspace name is not given to re-enabled outputs.
if (!config->reloading && !config->validating) {
apply_output_config_to_outputs(output);
if (background) {
spawn_swaybg();
}
}
return cmd_results_new(CMD_SUCCESS, NULL);
fail:
config->handler_context.output_config = NULL;
free_output_config(output);
return error;
}