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-rw-r--r--swaybg/main.c80
1 files changed, 61 insertions, 19 deletions
diff --git a/swaybg/main.c b/swaybg/main.c
index 203082f6..c282a707 100644
--- a/swaybg/main.c
+++ b/swaybg/main.c
@@ -43,10 +43,12 @@ struct swaybg_state {
struct wl_output *output;
struct wl_surface *surface;
+ struct wl_region *input_region;
struct zwlr_layer_surface_v1 *layer_surface;
bool run_display;
uint32_t width, height;
+ int32_t scale;
struct pool_buffer buffers[2];
struct pool_buffer *current_buffer;
};
@@ -74,52 +76,53 @@ static void render_image(struct swaybg_state *state) {
cairo_surface_t *image = state->context.image;
double width = cairo_image_surface_get_width(image);
double height = cairo_image_surface_get_height(image);
- int wwidth = state->width;
- int wheight = state->height;
+ int buffer_width = state->width * state->scale;
+ int buffer_height = state->height * state->scale;
switch (state->args->mode) {
case BACKGROUND_MODE_STRETCH:
- cairo_scale(cairo, (double)wwidth / width, (double)wheight / height);
+ cairo_scale(cairo, (double)buffer_width / width,
+ (double)buffer_height / height);
cairo_set_source_surface(cairo, image, 0, 0);
break;
case BACKGROUND_MODE_FILL: {
- double window_ratio = (double)wwidth / wheight;
+ double window_ratio = (double)buffer_width / buffer_height;
double bg_ratio = width / height;
if (window_ratio > bg_ratio) {
- double scale = (double)wwidth / width;
+ double scale = (double)buffer_width / width;
cairo_scale(cairo, scale, scale);
cairo_set_source_surface(cairo, image,
- 0, (double)wheight / 2 / scale - height / 2);
+ 0, (double)buffer_height / 2 / scale - height / 2);
} else {
- double scale = (double)wheight / height;
+ double scale = (double)buffer_height / height;
cairo_scale(cairo, scale, scale);
cairo_set_source_surface(cairo, image,
- (double)wwidth / 2 / scale - width / 2, 0);
+ (double)buffer_width / 2 / scale - width / 2, 0);
}
break;
}
case BACKGROUND_MODE_FIT: {
- double window_ratio = (double)wwidth / wheight;
+ double window_ratio = (double)buffer_width / buffer_height;
double bg_ratio = width / height;
if (window_ratio > bg_ratio) {
- double scale = (double)wheight / height;
+ double scale = (double)buffer_height / height;
cairo_scale(cairo, scale, scale);
cairo_set_source_surface(cairo, image,
- (double)wwidth / 2 / scale - width / 2, 0);
+ (double)buffer_width / 2 / scale - width / 2, 0);
} else {
- double scale = (double)wwidth / width;
+ double scale = (double)buffer_width / width;
cairo_scale(cairo, scale, scale);
cairo_set_source_surface(cairo, image,
- 0, (double)wheight / 2 / scale - height / 2);
+ 0, (double)buffer_height / 2 / scale - height / 2);
}
break;
}
case BACKGROUND_MODE_CENTER:
cairo_set_source_surface(cairo, image,
- (double)wwidth / 2 - width / 2,
- (double)wheight / 2 - height / 2);
+ (double)buffer_width / 2 - width / 2,
+ (double)buffer_height / 2 - height / 2);
break;
case BACKGROUND_MODE_TILE: {
cairo_pattern_t *pattern = cairo_pattern_create_for_surface(image);
@@ -135,8 +138,8 @@ static void render_image(struct swaybg_state *state) {
}
static void render_frame(struct swaybg_state *state) {
- state->current_buffer = get_next_buffer(state->shm,
- state->buffers, state->width, state->height);
+ state->current_buffer = get_next_buffer(state->shm, state->buffers,
+ state->width * state->scale, state->height * state->scale);
cairo_t *cairo = state->current_buffer->cairo;
switch (state->args->mode) {
@@ -149,6 +152,7 @@ static void render_frame(struct swaybg_state *state) {
break;
}
+ wl_surface_set_buffer_scale(state->surface, state->scale);
wl_surface_attach(state->surface, state->current_buffer->buffer, 0, 0);
wl_surface_damage(state->surface, 0, 0, state->width, state->height);
wl_surface_commit(state->surface);
@@ -204,6 +208,7 @@ static void layer_surface_closed(void *data,
struct swaybg_state *state = data;
zwlr_layer_surface_v1_destroy(state->layer_surface);
wl_surface_destroy(state->surface);
+ wl_region_destroy(state->input_region);
state->run_display = false;
}
@@ -212,12 +217,42 @@ 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 swaybg_state *state = data;
+ state->scale = factor;
+ if (state->run_display) {
+ render_frame(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 swaybg_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);
@@ -225,7 +260,8 @@ static void handle_global(void *data, struct wl_registry *registry,
static int output_idx = 0;
if (output_idx == state->args->output_idx) {
state->output = wl_registry_bind(registry, name,
- &wl_output_interface, 1);
+ &wl_output_interface, 3);
+ wl_output_add_listener(state->output, &output_listener, state);
}
output_idx++;
} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
@@ -287,8 +323,14 @@ int main(int argc, const char **argv) {
wl_display_roundtrip(state.display);
assert(state.compositor && state.layer_shell && state.output && state.shm);
+ // Second roundtrip to get output properties
+ wl_display_roundtrip(state.display);
+
assert(state.surface = wl_compositor_create_surface(state.compositor));
+ assert(state.input_region = wl_compositor_create_region(state.compositor));
+ wl_surface_set_input_region(state.surface, state.input_region);
+
state.layer_surface = zwlr_layer_shell_v1_get_layer_surface(
state.layer_shell, state.surface, state.output,
ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND, "wallpaper");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 10:32:33 +0000