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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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47
sway/config/output.c
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@ -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) {