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config/output: Accept a list of output_configs to use

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Instead of using a single finalized output config per output, accept a
regular list of output configs like the one ultimately stored for
configuration purposes. This allows the output management code to test
an augmented configuration while still using the same output config
logic, without having to mutate the stored configuration.

This in turn allows us to make a few APIs private. A bug note about an
existing issue with derade to off is added as well.
This commit is contained in:
Kenny Levinsen 2024-09-09 15:28:22 +02:00 committed by Alexander Orzechowski
parent 0496477f92
commit 29b3f00e6f
3 changed files with 67 additions and 75 deletions
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15
include/sway/config.h
View file

@ -296,14 +296,6 @@ struct output_config {
char *background_fallback;
};
/**
* An output config pre-matched to an output
*/
struct matched_output_config {
struct sway_output *output;
struct output_config *config;
};
/**
* Stores size of gaps for each side
*/
@ -693,14 +685,11 @@ const char *sway_output_scale_filter_to_string(enum scale_filter_mode scale_filt
struct output_config *new_output_config(const char *name);
bool apply_output_configs(struct matched_output_config *configs,
size_t configs_len, bool test_only, bool degrade_to_off);
bool apply_output_configs(struct output_config **ocs, size_t ocs_len,
bool test_only, bool degrade_to_off);
void apply_all_output_configs(void);
void sort_output_configs_by_priority(struct matched_output_config *configs,
size_t configs_len);
/**
* store_output_config stores a new output config. An output may be matched by
* three different config types, in order of precedence: Identifier, name and

47
sway/config/output.c
View file

@ -584,9 +584,11 @@ static bool finalize_output_config(struct output_config *oc, struct sway_output
return true;
}
// find_output_config returns a merged output_config containing all stored
// configuration that applies to the specified output.
struct output_config *find_output_config(struct sway_output *sway_output) {
// find_output_config_from_list returns a merged output_config containing all
// stored configuration that applies to the specified output.
static struct output_config *find_output_config_from_list(
struct output_config **configs, size_t configs_len,
struct sway_output *sway_output) {
const char *name = sway_output->wlr_output->name;
struct output_config *result = new_output_config(name);
if (result == NULL) {
@ -611,8 +613,8 @@ struct output_config *find_output_config(struct sway_output *sway_output) {
struct output_config *oc = NULL;
const char *names[] = {"*", name, id, NULL};
for (const char **name = &names[0]; *name; name++) {
for (int idx = 0; idx < config->output_configs->length; idx++) {
oc = config->output_configs->items[idx];
for (size_t idx = 0; idx < configs_len; idx++) {
oc = configs[idx];
if (strcmp(oc->name, *name) == 0) {
merge_output_config(result, oc);
}
@ -622,6 +624,12 @@ struct output_config *find_output_config(struct sway_output *sway_output) {
return result;
}
struct output_config *find_output_config(struct sway_output *sway_output) {
return find_output_config_from_list(
(struct output_config **)config->output_configs->items,
config->output_configs->length, sway_output);
}
static bool config_has_manual_mode(struct output_config *oc) {
if (!oc) {
return false;
@ -634,6 +642,14 @@ static bool config_has_manual_mode(struct output_config *oc) {
return false;
}
/**
* An output config pre-matched to an output
*/
struct matched_output_config {
struct sway_output *output;
struct output_config *config;
};
struct search_context {
struct wlr_output_swapchain_manager *swapchain_mgr;
struct wlr_backend_output_state *states;
@ -852,12 +868,12 @@ static int compare_matched_output_config_priority(const void *a, const void *b)
return 0;
}
void sort_output_configs_by_priority(struct matched_output_config *configs,
size_t configs_len) {
static void sort_output_configs_by_priority(
struct matched_output_config *configs, size_t configs_len) {
qsort(configs, configs_len, sizeof(*configs), compare_matched_output_config_priority);
}
bool apply_output_configs(struct matched_output_config *configs,
static bool apply_resolved_output_configs(struct matched_output_config *configs,
size_t configs_len, bool test_only, bool degrade_to_off) {
struct wlr_backend_output_state *states = calloc(configs_len, sizeof(*states));
if (!states) {
@ -965,11 +981,12 @@ out:
return ok;
}
void apply_all_output_configs(void) {
bool apply_output_configs(struct output_config **ocs, size_t ocs_len,
bool test_only, bool degrade_to_off) {
size_t configs_len = wl_list_length(&root->all_outputs);
struct matched_output_config *configs = calloc(configs_len, sizeof(*configs));
if (!configs) {
return;
return false;
}
int config_idx = 0;
@ -982,16 +999,22 @@ void apply_all_output_configs(void) {
struct matched_output_config *config = &configs[config_idx++];
config->output = sway_output;
config->config = find_output_config(sway_output);
config->config = find_output_config_from_list(ocs, ocs_len, sway_output);
}
sort_output_configs_by_priority(configs, configs_len);
apply_output_configs(configs, configs_len, false, true);
bool ok = apply_resolved_output_configs(configs, configs_len, test_only, degrade_to_off);
for (size_t idx = 0; idx < configs_len; idx++) {
struct matched_output_config *cfg = &configs[idx];
free_output_config(cfg->config);
}
free(configs);
return ok;
}
void apply_all_output_configs(void) {
apply_output_configs((struct output_config **)config->output_configs->items,
config->output_configs->length, false, true);
}
void free_output_config(struct output_config *oc) {

80
sway/desktop/output.c
View file

@ -544,9 +544,8 @@ void handle_new_output(struct wl_listener *listener, void *data) {
}
static struct output_config *output_config_for_config_head(
struct wlr_output_configuration_head_v1 *config_head,
struct sway_output *output) {
struct output_config *oc = new_output_config(output->wlr_output->name);
struct wlr_output_configuration_head_v1 *config_head) {
struct output_config *oc = new_output_config(config_head->state.output->name);
oc->enabled = config_head->state.enabled;
if (!oc->enabled) {
return oc;
@ -572,67 +571,48 @@ static struct output_config *output_config_for_config_head(
}
static void output_manager_apply(struct sway_server *server,
struct wlr_output_configuration_v1 *config, bool test_only) {
size_t configs_len = wl_list_length(&root->all_outputs);
struct matched_output_config *configs = calloc(configs_len, sizeof(*configs));
struct wlr_output_configuration_v1 *cfg, bool test_only) {
bool ok = false;
size_t configs_len = config->output_configs->length + wl_list_length(&cfg->heads);
struct output_config **configs = calloc(configs_len, sizeof(*configs));
if (!configs) {
return;
goto done;
}
size_t start_new_configs = config->output_configs->length;
for (size_t idx = 0; idx < start_new_configs; idx++) {
configs[idx] = config->output_configs->items[idx];
}
int config_idx = 0;
struct sway_output *sway_output;
wl_list_for_each(sway_output, &root->all_outputs, link) {
if (sway_output == root->fallback_output) {
configs_len--;
continue;
}
struct matched_output_config *cfg = &configs[config_idx++];
cfg->output = sway_output;
struct wlr_output_configuration_head_v1 *config_head;
wl_list_for_each(config_head, &config->heads, link) {
if (config_head->state.output == sway_output->wlr_output) {
cfg->config = output_config_for_config_head(config_head, sway_output);
break;
}
}
if (!cfg->config) {
cfg->config = find_output_config(sway_output);
}
size_t config_idx = start_new_configs;
struct wlr_output_configuration_head_v1 *config_head;
wl_list_for_each(config_head, &cfg->heads, link) {
// Generate the configuration and store it as a temporary
// config. We keep a record of it so we can remove it later.
struct output_config *oc = output_config_for_config_head(config_head);
configs[config_idx++] = oc;
}
sort_output_configs_by_priority(configs, configs_len);
bool ok = apply_output_configs(configs, configs_len, test_only, false);
for (size_t idx = 0; idx < configs_len; idx++) {
struct matched_output_config *cfg = &configs[idx];
// Only store new configs for successful non-test commits. Old configs,
// test-only and failed commits just get freed.
bool store_config = false;
// Try to commit without degrade to off enabled. Note that this will fail
// if any output configured for enablement fails to be enabled, even if it
// was not part of the config heads we were asked to configure.
ok = apply_output_configs(configs, configs_len, test_only, false);
for (size_t idx = start_new_configs; idx < configs_len; idx++) {
struct output_config *cfg = configs[idx];
if (!test_only && ok) {
struct wlr_output_configuration_head_v1 *config_head;
wl_list_for_each(config_head, &config->heads, link) {
if (config_head->state.output == cfg->output->wlr_output) {
store_config = true;
break;
}
}
}
if (store_config) {
store_output_config(cfg->config);
store_output_config(cfg);
} else {
free_output_config(cfg->config);
free_output_config(cfg);
}
}
free(configs);
done:
if (ok) {
wlr_output_configuration_v1_send_succeeded(config);
wlr_output_configuration_v1_send_succeeded(cfg);
} else {
wlr_output_configuration_v1_send_failed(config);
wlr_output_configuration_v1_send_failed(cfg);
}
wlr_output_configuration_v1_destroy(config);
wlr_output_configuration_v1_destroy(cfg);
}
void handle_output_manager_apply(struct wl_listener *listener, void *data) {