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output-management-v1: add more docs

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emersion 2019-03-28 22:08:18 +02:00 • committed by Drew DeVault
parent a800aa3fb4
commit 930e37eae9
2 changed files with 54 additions and 1 deletions
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12
types/wlr_output_management_v1.c
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@ -148,6 +148,8 @@ static void config_head_handle_set_mode(struct wl_client *client,
return;
}
// Mode can be NULL if the output doesn't support modes (in which case we
// expose only one "virtual" mode, the current mode)
struct wlr_output_mode *mode = mode_from_resource(mode_resource);
struct wlr_output *output = config_head->state.output;
@ -272,6 +274,8 @@ static struct wlr_output_configuration_v1 *config_from_resource(
return wl_resource_get_user_data(resource);
}
// Checks that the head is unconfigured (ie. no enable_head/disable_head request
// has yet been sent for this head), if not sends a protocol error.
static bool config_check_head_is_unconfigured(
struct wlr_output_configuration_v1 *config, struct wlr_output *output) {
struct wlr_output_configuration_head_v1 *head;
@ -358,6 +362,8 @@ static void config_handle_disable_head(struct wl_client *client,
config_head->state.enabled = false;
}
// Finalizes a configuration. This prevents the same config from being used
// multiple times.
static void config_finalize(struct wlr_output_configuration_v1 *config) {
if (config->finalized) {
return;
@ -668,6 +674,7 @@ static struct wl_resource *head_send_mode(struct wlr_output_head_v1 *head,
return mode_resource;
}
// Sends new head state to a client.
static void head_send_state(struct wlr_output_head_v1 *head,
struct wl_resource *head_resource, uint32_t state) {
struct wl_client *client = wl_resource_get_client(head_resource);
@ -690,8 +697,10 @@ static void head_send_state(struct wlr_output_head_v1 *head,
break;
}
}
assert(found);
if (head->state.mode == NULL) {
// Fake a single output mode if output doesn't support modes
struct wlr_output_mode virtual_mode = {
.width = head->state.custom_mode.width,
.height = head->state.custom_mode.height,
@ -700,7 +709,6 @@ static void head_send_state(struct wlr_output_head_v1 *head,
send_mode_state(mode_resource, &virtual_mode);
}
assert(found);
zwlr_output_head_v1_send_current_mode(head_resource, mode_resource);
}
@ -767,6 +775,8 @@ static void manager_send_head(struct wlr_output_manager_v1 *manager,
head_send_state(head, head_resource, HEAD_STATE_ALL);
}
// Compute state that has changed and sends it to all clients. Then writes the
// new state to the head.
static bool manager_update_head(struct wlr_output_manager_v1 *manager,
struct wlr_output_head_v1 *head,
struct wlr_output_head_v1_state *next) {