wlroots/types/output/output.c

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#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <backend/backend.h>
#include <drm_fourcc.h>
#include <stdlib.h>
#include <wlr/interfaces/wlr_output.h>
#include <wlr/types/wlr_matrix.h>
#include <wlr/types/wlr_surface.h>
#include <wlr/util/log.h>
#include "render/allocator/allocator.h"
#include "render/swapchain.h"
#include "types/wlr_output.h"
#include "util/global.h"
#include "util/signal.h"
#define OUTPUT_VERSION 3
static void send_geometry(struct wl_resource *resource) {
struct wlr_output *output = wlr_output_from_resource(resource);
wl_output_send_geometry(resource, 0, 0,
output->phys_width, output->phys_height, output->subpixel,
output->make, output->model, output->transform);
}
static void send_current_mode(struct wl_resource *resource) {
struct wlr_output *output = wlr_output_from_resource(resource);
if (output->current_mode != NULL) {
struct wlr_output_mode *mode = output->current_mode;
wl_output_send_mode(resource, WL_OUTPUT_MODE_CURRENT,
mode->width, mode->height, mode->refresh);
} else {
// Output has no mode
wl_output_send_mode(resource, WL_OUTPUT_MODE_CURRENT, output->width,
output->height, output->refresh);
}
}
static void send_scale(struct wl_resource *resource) {
struct wlr_output *output = wlr_output_from_resource(resource);
uint32_t version = wl_resource_get_version(resource);
if (version >= WL_OUTPUT_SCALE_SINCE_VERSION) {
wl_output_send_scale(resource, (uint32_t)ceil(output->scale));
}
}
static void send_done(struct wl_resource *resource) {
uint32_t version = wl_resource_get_version(resource);
if (version >= WL_OUTPUT_DONE_SINCE_VERSION) {
wl_output_send_done(resource);
}
}
static void output_handle_resource_destroy(struct wl_resource *resource) {
wl_list_remove(wl_resource_get_link(resource));
}
static void output_handle_release(struct wl_client *client,
struct wl_resource *resource) {
wl_resource_destroy(resource);
}
static const struct wl_output_interface output_impl = {
.release = output_handle_release,
};
static void output_bind(struct wl_client *wl_client, void *data,
uint32_t version, uint32_t id) {
// `output` can be NULL if the output global is being destroyed
struct wlr_output *output = data;
struct wl_resource *resource = wl_resource_create(wl_client,
&wl_output_interface, version, id);
if (resource == NULL) {
wl_client_post_no_memory(wl_client);
return;
}
wl_resource_set_implementation(resource, &output_impl, output,
output_handle_resource_destroy);
if (output == NULL) {
wl_list_init(wl_resource_get_link(resource));
return;
}
wl_list_insert(&output->resources, wl_resource_get_link(resource));
send_geometry(resource);
send_current_mode(resource);
send_scale(resource);
send_done(resource);
struct wlr_output_event_bind evt = {
.output = output,
.resource = resource,
};
wlr_signal_emit_safe(&output->events.bind, &evt);
}
void wlr_output_create_global(struct wlr_output *output) {
if (output->global != NULL) {
return;
}
output->global = wl_global_create(output->display,
&wl_output_interface, OUTPUT_VERSION, output, output_bind);
if (output->global == NULL) {
wlr_log(WLR_ERROR, "Failed to allocate wl_output global");
}
}
void wlr_output_destroy_global(struct wlr_output *output) {
if (output->global == NULL) {
return;
}
// Make all output resources inert
struct wl_resource *resource, *tmp;
wl_resource_for_each_safe(resource, tmp, &output->resources) {
wl_resource_set_user_data(resource, NULL);
wl_list_remove(wl_resource_get_link(resource));
wl_list_init(wl_resource_get_link(resource));
}
wlr_global_destroy_safe(output->global, output->display);
output->global = NULL;
}
static void schedule_done_handle_idle_timer(void *data) {
struct wlr_output *output = data;
output->idle_done = NULL;
struct wl_resource *resource;
wl_resource_for_each(resource, &output->resources) {
uint32_t version = wl_resource_get_version(resource);
if (version >= WL_OUTPUT_DONE_SINCE_VERSION) {
wl_output_send_done(resource);
}
}
}
void wlr_output_schedule_done(struct wlr_output *output) {
if (output->idle_done != NULL) {
return; // Already scheduled
}
struct wl_event_loop *ev = wl_display_get_event_loop(output->display);
output->idle_done =
wl_event_loop_add_idle(ev, schedule_done_handle_idle_timer, output);
}
struct wlr_output *wlr_output_from_resource(struct wl_resource *resource) {
assert(wl_resource_instance_of(resource, &wl_output_interface,
&output_impl));
return wl_resource_get_user_data(resource);
}
void wlr_output_update_enabled(struct wlr_output *output, bool enabled) {
if (output->enabled == enabled) {
return;
}
output->enabled = enabled;
wlr_signal_emit_safe(&output->events.enable, output);
}
static void output_update_matrix(struct wlr_output *output) {
wlr_matrix_identity(output->transform_matrix);
if (output->transform != WL_OUTPUT_TRANSFORM_NORMAL) {
int tr_width, tr_height;
wlr_output_transformed_resolution(output, &tr_width, &tr_height);
wlr_matrix_translate(output->transform_matrix,
output->width / 2.0, output->height / 2.0);
wlr_matrix_transform(output->transform_matrix, output->transform);
wlr_matrix_translate(output->transform_matrix,
- tr_width / 2.0, - tr_height / 2.0);
}
}
void wlr_output_enable(struct wlr_output *output, bool enable) {
if (output->enabled == enable) {
output->pending.committed &= ~WLR_OUTPUT_STATE_ENABLED;
return;
}
output->pending.committed |= WLR_OUTPUT_STATE_ENABLED;
output->pending.enabled = enable;
}
static void output_state_clear_mode(struct wlr_output_state *state) {
if (!(state->committed & WLR_OUTPUT_STATE_MODE)) {
return;
}
state->mode = NULL;
state->committed &= ~WLR_OUTPUT_STATE_MODE;
}
void wlr_output_set_mode(struct wlr_output *output,
struct wlr_output_mode *mode) {
output_state_clear_mode(&output->pending);
if (output->current_mode == mode) {
return;
}
output->pending.committed |= WLR_OUTPUT_STATE_MODE;
output->pending.mode_type = WLR_OUTPUT_STATE_MODE_FIXED;
output->pending.mode = mode;
}
void wlr_output_set_custom_mode(struct wlr_output *output, int32_t width,
int32_t height, int32_t refresh) {
output_state_clear_mode(&output->pending);
if (output->width == width && output->height == height &&
output->refresh == refresh) {
return;
}
output->pending.committed |= WLR_OUTPUT_STATE_MODE;
output->pending.mode_type = WLR_OUTPUT_STATE_MODE_CUSTOM;
output->pending.custom_mode.width = width;
output->pending.custom_mode.height = height;
output->pending.custom_mode.refresh = refresh;
}
void wlr_output_update_mode(struct wlr_output *output,
struct wlr_output_mode *mode) {
output->current_mode = mode;
if (mode != NULL) {
wlr_output_update_custom_mode(output, mode->width, mode->height,
mode->refresh);
} else {
wlr_output_update_custom_mode(output, 0, 0, 0);
}
}
void wlr_output_update_custom_mode(struct wlr_output *output, int32_t width,
int32_t height, int32_t refresh) {
if (output->width == width && output->height == height &&
output->refresh == refresh) {
return;
}
output->width = width;
output->height = height;
output_update_matrix(output);
output->refresh = refresh;
if (output->swapchain != NULL &&
(output->swapchain->width != output->width ||
output->swapchain->height != output->height)) {
wlr_swapchain_destroy(output->swapchain);
output->swapchain = NULL;
}
struct wl_resource *resource;
wl_resource_for_each(resource, &output->resources) {
send_current_mode(resource);
}
wlr_output_schedule_done(output);
wlr_signal_emit_safe(&output->events.mode, output);
}
void wlr_output_set_transform(struct wlr_output *output,
enum wl_output_transform transform) {
if (output->transform == transform) {
output->pending.committed &= ~WLR_OUTPUT_STATE_TRANSFORM;
return;
}
output->pending.committed |= WLR_OUTPUT_STATE_TRANSFORM;
output->pending.transform = transform;
}
void wlr_output_set_scale(struct wlr_output *output, float scale) {
if (output->scale == scale) {
output->pending.committed &= ~WLR_OUTPUT_STATE_SCALE;
return;
}
output->pending.committed |= WLR_OUTPUT_STATE_SCALE;
output->pending.scale = scale;
}
void wlr_output_enable_adaptive_sync(struct wlr_output *output, bool enabled) {
bool currently_enabled =
output->adaptive_sync_status != WLR_OUTPUT_ADAPTIVE_SYNC_DISABLED;
if (currently_enabled == enabled) {
output->pending.committed &= ~WLR_OUTPUT_STATE_ADAPTIVE_SYNC_ENABLED;
return;
}
output->pending.committed |= WLR_OUTPUT_STATE_ADAPTIVE_SYNC_ENABLED;
output->pending.adaptive_sync_enabled = enabled;
}
void wlr_output_set_render_format(struct wlr_output *output, uint32_t format) {
if (output->render_format == format) {
output->pending.committed &= ~WLR_OUTPUT_STATE_RENDER_FORMAT;
return;
}
output->pending.committed |= WLR_OUTPUT_STATE_RENDER_FORMAT;
output->pending.render_format = format;
}
void wlr_output_set_subpixel(struct wlr_output *output,
enum wl_output_subpixel subpixel) {
if (output->subpixel == subpixel) {
return;
}
output->subpixel = subpixel;
struct wl_resource *resource;
wl_resource_for_each(resource, &output->resources) {
send_geometry(resource);
}
wlr_output_schedule_done(output);
}
void wlr_output_set_description(struct wlr_output *output, const char *desc) {
if (output->description != NULL && desc != NULL &&
strcmp(output->description, desc) == 0) {
return;
}
free(output->description);
if (desc != NULL) {
output->description = strdup(desc);
} else {
output->description = NULL;
}
wlr_signal_emit_safe(&output->events.description, output);
}
static void handle_display_destroy(struct wl_listener *listener, void *data) {
struct wlr_output *output =
wl_container_of(listener, output, display_destroy);
wlr_output_destroy_global(output);
}
void wlr_output_init(struct wlr_output *output, struct wlr_backend *backend,
const struct wlr_output_impl *impl, struct wl_display *display) {
assert(impl->commit);
if (impl->set_cursor || impl->move_cursor) {
assert(impl->set_cursor && impl->move_cursor);
}
output->backend = backend;
output->impl = impl;
output->display = display;
wl_list_init(&output->modes);
output->render_format = DRM_FORMAT_XRGB8888;
output->transform = WL_OUTPUT_TRANSFORM_NORMAL;
output->scale = 1;
output->commit_seq = 0;
wl_list_init(&output->cursors);
wl_list_init(&output->resources);
wl_signal_init(&output->events.frame);
wl_signal_init(&output->events.damage);
wl_signal_init(&output->events.needs_frame);
wl_signal_init(&output->events.precommit);
wl_signal_init(&output->events.commit);
wl_signal_init(&output->events.present);
wl_signal_init(&output->events.bind);
wl_signal_init(&output->events.enable);
wl_signal_init(&output->events.mode);
wl_signal_init(&output->events.description);
wl_signal_init(&output->events.destroy);
pixman_region32_init(&output->pending.damage);
const char *no_hardware_cursors = getenv("WLR_NO_HARDWARE_CURSORS");
if (no_hardware_cursors != NULL && strcmp(no_hardware_cursors, "1") == 0) {
wlr_log(WLR_DEBUG,
"WLR_NO_HARDWARE_CURSORS set, forcing software cursors");
output->software_cursor_locks = 1;
}
wlr_addon_set_init(&output->addons);
output->display_destroy.notify = handle_display_destroy;
wl_display_add_destroy_listener(display, &output->display_destroy);
}
void wlr_output_destroy(struct wlr_output *output) {
if (!output) {
return;
}
wlr_buffer_unlock(output->front_buffer);
output->front_buffer = NULL;
wl_list_remove(&output->display_destroy.link);
wlr_output_destroy_global(output);
output_clear_back_buffer(output);
wlr_signal_emit_safe(&output->events.destroy, output);
wlr_addon_set_finish(&output->addons);
// The backend is responsible for free-ing the list of modes
struct wlr_output_cursor *cursor, *tmp_cursor;
wl_list_for_each_safe(cursor, tmp_cursor, &output->cursors, link) {
wlr_output_cursor_destroy(cursor);
}
wlr_swapchain_destroy(output->cursor_swapchain);
wlr_buffer_unlock(output->cursor_front_buffer);
wlr_swapchain_destroy(output->swapchain);
if (output->idle_frame != NULL) {
wl_event_source_remove(output->idle_frame);
}
if (output->idle_done != NULL) {
wl_event_source_remove(output->idle_done);
}
free(output->description);
pixman_region32_fini(&output->pending.damage);
if (output->impl && output->impl->destroy) {
output->impl->destroy(output);
} else {
free(output);
}
}
void wlr_output_transformed_resolution(struct wlr_output *output,
int *width, int *height) {
if (output->transform % 2 == 0) {
*width = output->width;
*height = output->height;
} else {
*width = output->height;
*height = output->width;
}
}
void wlr_output_effective_resolution(struct wlr_output *output,
int *width, int *height) {
wlr_output_transformed_resolution(output, width, height);
*width /= output->scale;
*height /= output->scale;
}
struct wlr_output_mode *wlr_output_preferred_mode(struct wlr_output *output) {
if (wl_list_empty(&output->modes)) {
return NULL;
}
struct wlr_output_mode *mode;
wl_list_for_each(mode, &output->modes, link) {
if (mode->preferred) {
return mode;
}
}
// No preferred mode, choose the first one
return wl_container_of(output->modes.next, mode, link);
}
static void output_state_clear_buffer(struct wlr_output_state *state) {
if (!(state->committed & WLR_OUTPUT_STATE_BUFFER)) {
return;
}
wlr_buffer_unlock(state->buffer);
state->buffer = NULL;
state->committed &= ~WLR_OUTPUT_STATE_BUFFER;
}
void wlr_output_set_damage(struct wlr_output *output,
pixman_region32_t *damage) {
pixman_region32_intersect_rect(&output->pending.damage, damage,
0, 0, output->width, output->height);
output->pending.committed |= WLR_OUTPUT_STATE_DAMAGE;
}
static void output_state_clear_gamma_lut(struct wlr_output_state *state) {
free(state->gamma_lut);
state->gamma_lut = NULL;
state->committed &= ~WLR_OUTPUT_STATE_GAMMA_LUT;
}
static void output_state_clear(struct wlr_output_state *state) {
output_state_clear_buffer(state);
output_state_clear_gamma_lut(state);
pixman_region32_clear(&state->damage);
state->committed = 0;
}
void output_pending_resolution(struct wlr_output *output, int *width,
int *height) {
if (output->pending.committed & WLR_OUTPUT_STATE_MODE) {
switch (output->pending.mode_type) {
case WLR_OUTPUT_STATE_MODE_FIXED:
*width = output->pending.mode->width;
*height = output->pending.mode->height;
return;
case WLR_OUTPUT_STATE_MODE_CUSTOM:
*width = output->pending.custom_mode.width;
*height = output->pending.custom_mode.height;
return;
}
abort();
} else {
*width = output->width;
*height = output->height;
}
}
static bool output_basic_test(struct wlr_output *output) {
if (output->pending.committed & WLR_OUTPUT_STATE_BUFFER) {
if (output->frame_pending) {
wlr_log(WLR_DEBUG, "Tried to commit a buffer while a frame is pending");
return false;
}
if (output->back_buffer == NULL) {
if (output->attach_render_locks > 0) {
wlr_log(WLR_DEBUG, "Direct scan-out disabled by lock");
return false;
}
// If the output has at least one software cursor, refuse to attach the
// buffer
struct wlr_output_cursor *cursor;
wl_list_for_each(cursor, &output->cursors, link) {
if (cursor->enabled && cursor->visible &&
cursor != output->hardware_cursor) {
wlr_log(WLR_DEBUG,
"Direct scan-out disabled by software cursor");
return false;
}
}
// If the size doesn't match, reject buffer (scaling is not
// supported)
int pending_width, pending_height;
output_pending_resolution(output, &pending_width, &pending_height);
if (output->pending.buffer->width != pending_width ||
output->pending.buffer->height != pending_height) {
wlr_log(WLR_DEBUG, "Direct scan-out buffer size mismatch");
return false;
}
}
}
if (output->pending.committed & WLR_OUTPUT_STATE_RENDER_FORMAT) {
struct wlr_allocator *allocator = output->allocator;
assert(allocator != NULL);
const struct wlr_drm_format_set *display_formats = NULL;
if (output->impl->get_primary_formats) {
display_formats =
output->impl->get_primary_formats(output, allocator->buffer_caps);
if (display_formats == NULL) {
wlr_log(WLR_ERROR, "Failed to get primary display formats");
return false;
}
}
struct wlr_drm_format *format = output_pick_format(output, display_formats,
output->pending.render_format);
if (format == NULL) {
wlr_log(WLR_ERROR, "Failed to pick primary buffer format for output");
return false;
}
free(format);
}
bool enabled = output->enabled;
if (output->pending.committed & WLR_OUTPUT_STATE_ENABLED) {
enabled = output->pending.enabled;
}
if (enabled && (output->pending.committed & (WLR_OUTPUT_STATE_ENABLED |
WLR_OUTPUT_STATE_MODE))) {
int pending_width, pending_height;
output_pending_resolution(output, &pending_width, &pending_height);
if (pending_width == 0 || pending_height == 0) {
wlr_log(WLR_DEBUG, "Tried to enable an output with a zero mode");
return false;
}
}
if (!enabled && output->pending.committed & WLR_OUTPUT_STATE_BUFFER) {
wlr_log(WLR_DEBUG, "Tried to commit a buffer on a disabled output");
return false;
}
if (!enabled && output->pending.committed & WLR_OUTPUT_STATE_MODE) {
wlr_log(WLR_DEBUG, "Tried to modeset a disabled output");
return false;
}
if (!enabled && output->pending.committed & WLR_OUTPUT_STATE_ADAPTIVE_SYNC_ENABLED) {
wlr_log(WLR_DEBUG, "Tried to enable adaptive sync on a disabled output");
return false;
}
if (!enabled && output->pending.committed & WLR_OUTPUT_STATE_RENDER_FORMAT) {
wlr_log(WLR_DEBUG, "Tried to set format for a disabled output");
return false;
}
if (!enabled && output->pending.committed & WLR_OUTPUT_STATE_GAMMA_LUT) {
wlr_log(WLR_DEBUG, "Tried to set the gamma lut on a disabled output");
return false;
}
return true;
}
bool wlr_output_test(struct wlr_output *output) {
if (!output_basic_test(output)) {
return false;
}
if (!output_ensure_buffer(output)) {
return false;
}
if (!output->impl->test) {
return true;
}
return output->impl->test(output);
}
bool wlr_output_commit(struct wlr_output *output) {
if (!output_basic_test(output)) {
wlr_log(WLR_ERROR, "Basic output test failed for %s", output->name);
return false;
}
if (!output_ensure_buffer(output)) {
return false;
}
if ((output->pending.committed & WLR_OUTPUT_STATE_BUFFER) &&
output->idle_frame != NULL) {
wl_event_source_remove(output->idle_frame);
output->idle_frame = NULL;
}
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
struct wlr_output_event_precommit pre_event = {
.output = output,
.when = &now,
};
wlr_signal_emit_safe(&output->events.precommit, &pre_event);
// output_clear_back_buffer detaches the buffer from the renderer. This is
// important to do before calling impl->commit(), because this marks an
// implicit rendering synchronization point. The backend needs it to avoid
// displaying a buffer when asynchronous GPU work isn't finished.
struct wlr_buffer *back_buffer = NULL;
if ((output->pending.committed & WLR_OUTPUT_STATE_BUFFER) &&
output->back_buffer != NULL) {
back_buffer = wlr_buffer_lock(output->back_buffer);
output_clear_back_buffer(output);
}
if (!output->impl->commit(output)) {
wlr_buffer_unlock(back_buffer);
output_state_clear(&output->pending);
return false;
}
if (output->pending.committed & WLR_OUTPUT_STATE_BUFFER) {
struct wlr_output_cursor *cursor;
wl_list_for_each(cursor, &output->cursors, link) {
if (!cursor->enabled || !cursor->visible || cursor->surface == NULL) {
continue;
}
wlr_surface_send_frame_done(cursor->surface, &now);
}
}
if (output->pending.committed & WLR_OUTPUT_STATE_RENDER_FORMAT) {
output->render_format = output->pending.render_format;
}
output->commit_seq++;
bool scale_updated = output->pending.committed & WLR_OUTPUT_STATE_SCALE;
if (scale_updated) {
output->scale = output->pending.scale;
}
if (output->pending.committed & WLR_OUTPUT_STATE_TRANSFORM) {
output->transform = output->pending.transform;
output_update_matrix(output);
}
bool geometry_updated = output->pending.committed &
(WLR_OUTPUT_STATE_MODE | WLR_OUTPUT_STATE_TRANSFORM);
if (geometry_updated || scale_updated) {
struct wl_resource *resource;
wl_resource_for_each(resource, &output->resources) {
if (geometry_updated) {
send_geometry(resource);
}
if (scale_updated) {
send_scale(resource);
}
}
wlr_output_schedule_done(output);
}
// Destroy the swapchains when an output is disabled
if ((output->pending.committed & WLR_OUTPUT_STATE_ENABLED) &&
!output->pending.enabled) {
wlr_swapchain_destroy(output->swapchain);
output->swapchain = NULL;
wlr_swapchain_destroy(output->cursor_swapchain);
output->cursor_swapchain = NULL;
}
// Unset the front-buffer when a new buffer will replace it or when the
// output is getting disabled
if ((output->pending.committed & WLR_OUTPUT_STATE_BUFFER) ||
((output->pending.committed & WLR_OUTPUT_STATE_ENABLED) &&
!output->pending.enabled)) {
wlr_buffer_unlock(output->front_buffer);
output->front_buffer = NULL;
}
if (output->pending.committed & WLR_OUTPUT_STATE_BUFFER) {
output->frame_pending = true;
output->needs_frame = false;
}
if (back_buffer != NULL) {
wlr_swapchain_set_buffer_submitted(output->swapchain, back_buffer);
wlr_buffer_unlock(output->front_buffer);
output->front_buffer = back_buffer;
}
uint32_t committed = output->pending.committed;
output_state_clear(&output->pending);
struct wlr_output_event_commit event = {
.output = output,
.committed = committed,
.when = &now,
};
wlr_signal_emit_safe(&output->events.commit, &event);
return true;
}
void wlr_output_rollback(struct wlr_output *output) {
output_clear_back_buffer(output);
output_state_clear(&output->pending);
}
void wlr_output_attach_buffer(struct wlr_output *output,
struct wlr_buffer *buffer) {
output_state_clear_buffer(&output->pending);
output->pending.committed |= WLR_OUTPUT_STATE_BUFFER;
output->pending.buffer = wlr_buffer_lock(buffer);
}
void wlr_output_send_frame(struct wlr_output *output) {
output->frame_pending = false;
if (output->enabled) {
wlr_signal_emit_safe(&output->events.frame, output);
}
}
static void schedule_frame_handle_idle_timer(void *data) {
struct wlr_output *output = data;
output->idle_frame = NULL;
if (!output->frame_pending) {
wlr_output_send_frame(output);
}
}
void wlr_output_schedule_frame(struct wlr_output *output) {
// Make sure the compositor commits a new frame. This is necessary to make
// clients which ask for frame callbacks without submitting a new buffer
// work.
wlr_output_update_needs_frame(output);
if (output->frame_pending || output->idle_frame != NULL) {
return;
}
// We're using an idle timer here in case a buffer swap happens right after
// this function is called
struct wl_event_loop *ev = wl_display_get_event_loop(output->display);
output->idle_frame =
wl_event_loop_add_idle(ev, schedule_frame_handle_idle_timer, output);
}
void wlr_output_send_present(struct wlr_output *output,
struct wlr_output_event_present *event) {
assert(event);
event->output = output;
output: fix stack variable lifetime in wlr_output_send_present Variables on the stack are released when the parent block is closed. Here, `now` is used outside of the `if` block, causing the following crash when starting Sway with the headless backend: ==49606==ERROR: AddressSanitizer: stack-use-after-scope on address 0x7fff94645f90 at pc 0x5558aeae9e29 bp 0x7fff94645df0 sp 0x7fff94645de0 READ of size 16 at 0x7fff94645f90 thread T0 #0 0x5558aeae9e28 in handle_present ../sway/desktop/output.c:834 #1 0x7fdc8d6792fb in wlr_signal_emit_safe ../subprojects/wlroots/util/signal.c:29 #2 0x7fdc8d54f77f in wlr_output_send_present ../subprojects/wlroots/types/output/output.c:766 #3 0x7fdc8d524a28 in output_commit ../subprojects/wlroots/backend/headless/output.c:71 #4 0x7fdc8d54d2db in wlr_output_commit ../subprojects/wlroots/types/output/output.c:629 #5 0x5558aeb013cb in output_render ../sway/desktop/render.c:1157 #6 0x5558aeae549e in output_repaint_timer_handler ../sway/desktop/output.c:544 #7 0x5558aeae5f8a in damage_handle_frame ../sway/desktop/output.c:606 #8 0x7fdc8d6792fb in wlr_signal_emit_safe ../subprojects/wlroots/util/signal.c:29 #9 0x7fdc8d6007d5 in output_handle_frame ../subprojects/wlroots/types/wlr_output_damage.c:44 #10 0x7fdc8d6792fb in wlr_signal_emit_safe ../subprojects/wlroots/util/signal.c:29 #11 0x7fdc8d54ee84 in wlr_output_send_frame ../subprojects/wlroots/types/output/output.c:720 #12 0x7fdc8d54efc3 in schedule_frame_handle_idle_timer ../subprojects/wlroots/types/output/output.c:728 #13 0x7fdc8c9dcf5a in wl_event_loop_dispatch_idle (/usr/lib/libwayland-server.so.0+0xaf5a) #14 0x7fdc8c9dcfb4 in wl_event_loop_dispatch (/usr/lib/libwayland-server.so.0+0xafb4) #15 0x7fdc8c9dabc6 in wl_display_run (/usr/lib/libwayland-server.so.0+0x8bc6) #16 0x5558aeac8e30 in server_run ../sway/server.c:285 #17 0x5558aeac3c7d in main ../sway/main.c:396 #18 0x7fdc8be35b24 in __libc_start_main (/usr/lib/libc.so.6+0x27b24) #19 0x5558aea8686d in _start (/home/simon/src/sway/build/sway/sway+0x33f86d)
2021-10-29 11:31:00 +00:00
struct timespec now;
if (event->presented && event->when == NULL) {
clockid_t clock = wlr_backend_get_presentation_clock(output->backend);
errno = 0;
if (clock_gettime(clock, &now) != 0) {
wlr_log_errno(WLR_ERROR, "failed to send output present event: "
"failed to read clock");
return;
}
event->when = &now;
}
wlr_signal_emit_safe(&output->events.present, event);
}
void wlr_output_set_gamma(struct wlr_output *output, size_t size,
const uint16_t *r, const uint16_t *g, const uint16_t *b) {
output_state_clear_gamma_lut(&output->pending);
output->pending.gamma_lut_size = size;
output->pending.gamma_lut = malloc(3 * size * sizeof(uint16_t));
if (output->pending.gamma_lut == NULL) {
wlr_log_errno(WLR_ERROR, "Allocation failed");
return;
}
memcpy(output->pending.gamma_lut, r, size * sizeof(uint16_t));
memcpy(output->pending.gamma_lut + size, g, size * sizeof(uint16_t));
memcpy(output->pending.gamma_lut + 2 * size, b, size * sizeof(uint16_t));
output->pending.committed |= WLR_OUTPUT_STATE_GAMMA_LUT;
}
size_t wlr_output_get_gamma_size(struct wlr_output *output) {
if (!output->impl->get_gamma_size) {
return 0;
}
return output->impl->get_gamma_size(output);
}
void wlr_output_update_needs_frame(struct wlr_output *output) {
if (output->needs_frame) {
return;
}
output->needs_frame = true;
wlr_signal_emit_safe(&output->events.needs_frame, output);
}
void wlr_output_damage_whole(struct wlr_output *output) {
int width, height;
wlr_output_transformed_resolution(output, &width, &height);
pixman_region32_t damage;
pixman_region32_init_rect(&damage, 0, 0, width, height);
struct wlr_output_event_damage event = {
.output = output,
.damage = &damage,
};
wlr_signal_emit_safe(&output->events.damage, &event);
pixman_region32_fini(&damage);
}