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Add hidpi support to swaylock

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This commit is contained in:
Drew DeVault 2018-04-03 19:15:14 -04:00
parent b7e7794912
commit 46b388995d
3 changed files with 57 additions and 20 deletions
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1
include/swaylock/swaylock.h
View file

@ -52,6 +52,7 @@ struct swaylock_surface {
struct pool_buffer buffers[2];
struct pool_buffer *current_buffer;
uint32_t width, height;
int32_t scale;
struct wl_list link;
};

35
swaylock/main.c
View file

@ -56,12 +56,42 @@ static const struct zwlr_layer_surface_v1_listener layer_surface_listener = {
.closed = layer_surface_closed,
};
static void output_geometry(void *data, struct wl_output *output, int32_t x,
int32_t y, int32_t width_mm, int32_t height_mm, int32_t subpixel,
const char *make, const char *model, int32_t transform) {
// Who cares
}
static void output_mode(void *data, struct wl_output *output, uint32_t flags,
int32_t width, int32_t height, int32_t refresh) {
// Who cares
}
static void output_done(void *data, struct wl_output *output) {
// Who cares
}
static void output_scale(void *data, struct wl_output *output, int32_t factor) {
struct swaylock_surface *surface = data;
surface->scale = factor;
if (surface->state->run_display) {
render_frames(surface->state);
}
}
struct wl_output_listener output_listener = {
.geometry = output_geometry,
.mode = output_mode,
.done = output_done,
.scale = output_scale,
};
static void handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version) {
struct swaylock_state *state = data;
if (strcmp(interface, wl_compositor_interface.name) == 0) {
state->compositor = wl_registry_bind(registry, name,
&wl_compositor_interface, 1);
&wl_compositor_interface, 3);
} else if (strcmp(interface, wl_shm_interface.name) == 0) {
state->shm = wl_registry_bind(registry, name,
&wl_shm_interface, 1);
@ -80,7 +110,8 @@ static void handle_global(void *data, struct wl_registry *registry,
calloc(1, sizeof(struct swaylock_surface));
surface->state = state;
surface->output = wl_registry_bind(registry, name,
&wl_output_interface, 1);
&wl_output_interface, 3);
wl_output_add_listener(surface->output, &output_listener, surface);
wl_list_insert(&state->surfaces, &surface->link);
}
}

41
swaylock/render.c
View file

@ -9,28 +9,32 @@
void render_frame(struct swaylock_surface *surface) {
struct swaylock_state *state = surface->state;
surface->current_buffer = get_next_buffer(state->shm,
surface->buffers, surface->width, surface->height);
surface->buffers,
surface->width * surface->scale,
surface->height * surface->scale);
cairo_t *cairo = surface->current_buffer->cairo;
cairo_identity_matrix(cairo);
int buffer_width = surface->width * surface->scale;
int buffer_height = surface->height * surface->scale;
if (state->args.mode == BACKGROUND_MODE_SOLID_COLOR) {
cairo_set_source_u32(cairo, state->args.color);
cairo_paint(cairo);
} else {
// TODO: hidpi
render_background_image(cairo, surface->image,
state->args.mode, surface->width, surface->height, 1);
state->args.mode, buffer_width, buffer_height);
}
cairo_identity_matrix(cairo);
const int ARC_RADIUS = 50;
const int ARC_THICKNESS = 10;
const float TYPE_INDICATOR_RANGE = M_PI / 3.0f;
const float TYPE_INDICATOR_BORDER_THICKNESS = M_PI / 128.0f;
int ARC_RADIUS = 50 * surface->scale;
int ARC_THICKNESS = 10 * surface->scale;
float TYPE_INDICATOR_RANGE = M_PI / 3.0f;
float TYPE_INDICATOR_BORDER_THICKNESS = M_PI / 128.0f * surface->scale;
if (state->args.show_indicator && state->auth_state != AUTH_STATE_IDLE) {
// Draw circle
cairo_set_line_width(cairo, ARC_THICKNESS);
cairo_arc(cairo, surface->width / 2, surface->height / 2,
ARC_RADIUS, 0, 2 * M_PI);
cairo_arc(cairo, buffer_width / 2, buffer_height / 2, ARC_RADIUS, 0, 2 * M_PI);
switch (state->auth_state) {
case AUTH_STATE_INPUT:
case AUTH_STATE_BACKSPACE: {
@ -74,9 +78,9 @@ void render_frame(struct swaylock_surface *surface) {
cairo_text_extents_t extents;
double x, y;
cairo_text_extents(cairo, text, &extents);
x = (surface->width / 2) -
x = (buffer_width / 2) -
(extents.width / 2 + extents.x_bearing);
y = (surface->height / 2) -
y = (buffer_height / 2) -
(extents.height / 2 + extents.y_bearing);
cairo_move_to(cairo, x, y);
@ -91,7 +95,7 @@ void render_frame(struct swaylock_surface *surface) {
static double highlight_start = 0;
highlight_start +=
(rand() % (int)(M_PI * 100)) / 100.0 + M_PI * 0.5;
cairo_arc(cairo, surface->width / 2, surface->height / 2,
cairo_arc(cairo, buffer_width / 2, buffer_height / 2,
ARC_RADIUS, highlight_start,
highlight_start + TYPE_INDICATOR_RANGE);
if (state->auth_state == AUTH_STATE_INPUT) {
@ -103,12 +107,12 @@ void render_frame(struct swaylock_surface *surface) {
// Draw borders
cairo_set_source_rgb(cairo, 0, 0, 0);
cairo_arc(cairo, surface->width / 2, surface->height / 2,
cairo_arc(cairo, buffer_width / 2, buffer_height / 2,
ARC_RADIUS, highlight_start,
highlight_start + TYPE_INDICATOR_BORDER_THICKNESS);
cairo_stroke(cairo);
cairo_arc(cairo, surface->width / 2, surface->height / 2,
cairo_arc(cairo, buffer_width / 2, buffer_height / 2,
ARC_RADIUS, highlight_start + TYPE_INDICATOR_RANGE,
highlight_start + TYPE_INDICATOR_RANGE +
TYPE_INDICATOR_BORDER_THICKNESS);
@ -117,17 +121,18 @@ void render_frame(struct swaylock_surface *surface) {
// Draw inner + outer border of the circle
cairo_set_source_rgb(cairo, 0, 0, 0);
cairo_set_line_width(cairo, 2.0);
cairo_arc(cairo, surface->width / 2, surface->height / 2,
cairo_set_line_width(cairo, 2.0 * surface->scale);
cairo_arc(cairo, buffer_width / 2, buffer_height / 2,
ARC_RADIUS - ARC_THICKNESS / 2, 0, 2 * M_PI);
cairo_stroke(cairo);
cairo_arc(cairo, surface->width / 2, surface->height / 2,
cairo_arc(cairo, buffer_width / 2, buffer_height / 2,
ARC_RADIUS + ARC_THICKNESS / 2, 0, 2 * M_PI);
cairo_stroke(cairo);
}
wl_surface_set_buffer_scale(surface->surface, surface->scale);
wl_surface_attach(surface->surface, surface->current_buffer->buffer, 0, 0);
wl_surface_damage(surface->surface, 0, 0, surface->width, surface->height);
wl_surface_damage(surface->surface, 0, 0, buffer_width, buffer_height);
wl_surface_commit(surface->surface);
wl_display_roundtrip(state->display);
}