output: add wlr_output_set_hardware_cursors_enabled

And use it in screencopy.
This commit is contained in:
emersion 2018-09-17 15:07:08 +02:00
parent 9288c827aa
commit 928572c14d
4 changed files with 62 additions and 11 deletions

View File

@ -107,6 +107,7 @@ struct wlr_output {
struct wl_list cursors; // wlr_output_cursor::link
struct wlr_output_cursor *hardware_cursor;
int software_cursor_locks; // number of locks forcing software cursors
// the output position in layout space reported to clients
int32_t lx, ly;
@ -196,6 +197,14 @@ bool wlr_output_export_dmabuf(struct wlr_output *output,
void wlr_output_set_fullscreen_surface(struct wlr_output *output,
struct wlr_surface *surface);
struct wlr_output *wlr_output_from_resource(struct wl_resource *resource);
/**
* Locks the output to only use software cursors instead of hardware cursors.
* This is useful if hardware cursors need to be temporarily disabled (e.g.
* during screen capture). There must be as many unlocks as there have been
* locks to restore the original state. There should never be an unlock before
* a lock.
*/
void wlr_output_lock_software_cursors(struct wlr_output *output, bool lock);
struct wlr_output_cursor *wlr_output_cursor_create(struct wlr_output *output);

View File

@ -9,6 +9,7 @@
#ifndef WLR_TYPES_WLR_SCREENCOPY_V1_H
#define WLR_TYPES_WLR_SCREENCOPY_V1_H
#include <stdbool.h>
#include <wayland-server.h>
#include <wlr/types/wlr_box.h>
@ -35,6 +36,8 @@ struct wlr_screencopy_frame_v1 {
struct wlr_box box;
int stride;
bool overlay_cursor, cursor_locked;
struct wl_shm_buffer *buffer;
struct wl_listener buffer_destroy;

View File

@ -273,6 +273,13 @@ void wlr_output_init(struct wlr_output *output, struct wlr_backend *backend,
wl_signal_init(&output->events.destroy);
pixman_region32_init(&output->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;
}
output->display_destroy.notify = handle_display_destroy;
wl_display_add_destroy_listener(display, &output->display_destroy);
@ -469,13 +476,6 @@ bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when,
output->idle_frame = NULL;
}
struct wlr_output_event_swap_buffers event = {
.output = output,
.when = when,
.damage = damage,
};
wlr_signal_emit_safe(&output->events.swap_buffers, &event);
int width, height;
wlr_output_transformed_resolution(output, &width, &height);
@ -510,6 +510,13 @@ bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when,
}
}
struct wlr_output_event_swap_buffers event = {
.output = output,
.when = when,
.damage = damage,
};
wlr_signal_emit_safe(&output->events.swap_buffers, &event);
// Transform damage into renderer coordinates, ie. upside down
enum wl_output_transform transform = wlr_output_transform_compose(
wlr_output_transform_invert(output->transform),
@ -666,6 +673,32 @@ struct wlr_output *wlr_output_from_resource(struct wl_resource *resource) {
return wl_resource_get_user_data(resource);
}
static void output_cursor_damage_whole(struct wlr_output_cursor *cursor);
void wlr_output_lock_software_cursors(struct wlr_output *output, bool lock) {
if (lock) {
++output->software_cursor_locks;
} else {
assert(output->software_cursor_locks > 0);
--output->software_cursor_locks;
}
wlr_log(WLR_DEBUG, "%s hardware cursors on output '%s' (locks: %d)",
lock ? "Disabling" : "Enabling", output->name,
output->software_cursor_locks);
if (output->software_cursor_locks > 0 && output->hardware_cursor != NULL) {
assert(output->impl->set_cursor);
output->impl->set_cursor(output, NULL, 1,
WL_OUTPUT_TRANSFORM_NORMAL, 0, 0, true);
output_cursor_damage_whole(output->hardware_cursor);
output->hardware_cursor = NULL;
}
// If it's possible to use hardware cursors again, don't switch immediately
// since a recorder is likely to lock software cursors for the next frame
// again.
}
static void output_cursor_damage_whole(struct wlr_output_cursor *cursor) {
struct wlr_box box;
@ -721,10 +754,7 @@ static bool output_cursor_attempt_hardware(struct wlr_output_cursor *cursor) {
transform = cursor->surface->current.transform;
}
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");
if (cursor->output->software_cursor_locks > 0) {
return false;
}

View File

@ -22,6 +22,9 @@ static void frame_destroy(struct wlr_screencopy_frame_v1 *frame) {
if (frame == NULL) {
return;
}
if (frame->cursor_locked) {
wlr_output_lock_software_cursors(frame->output, false);
}
wl_list_remove(&frame->link);
wl_list_remove(&frame->output_swap_buffers.link);
wl_list_remove(&frame->buffer_destroy.link);
@ -133,6 +136,11 @@ static void frame_handle_copy(struct wl_client *client,
// Schedule a buffer swap
output->needs_swap = true;
wlr_output_schedule_frame(output);
if (frame->overlay_cursor) {
wlr_output_lock_software_cursors(output, true);
frame->cursor_locked = true;
}
}
static void frame_handle_destroy(struct wl_client *client,
@ -189,6 +197,7 @@ static void capture_output(struct wl_client *client,
}
frame->manager = manager;
frame->output = output;
frame->overlay_cursor = !!overlay_cursor;
frame->resource = wl_resource_create(client,
&zwlr_screencopy_frame_v1_interface, version, id);