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Make swaybg standalone and able to handle multiple outputs

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This commit is contained in:
emersion 2018-07-10 22:52:18 +01:00
parent 8afe68f920
commit 5f36378cd9
6 changed files with 423 additions and 170 deletions
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40
swaybg/render.c Normal file
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#include <stdlib.h>
#include <wayland-client.h>
#include "background-image.h"
#include "cairo.h"
#include "swaybg.h"
void render_surface(struct swaybg_surface *surface) {
struct swaybg_state *state = surface->state;
int buffer_width = surface->width * surface->scale;
int buffer_height = surface->height * surface->scale;
if (buffer_width == 0 || buffer_height == 0) {
return; // not yet configured
}
surface->current_buffer = get_next_buffer(state->shm, surface->buffers,
buffer_width, buffer_height);
if (surface->current_buffer == NULL) {
return;
}
cairo_t *cairo = surface->current_buffer->cairo;
cairo_identity_matrix(cairo);
cairo_save(cairo);
cairo_set_operator(cairo, CAIRO_OPERATOR_SOURCE);
if (state->args.mode == BACKGROUND_MODE_SOLID_COLOR || !surface->image) {
cairo_set_source_u32(cairo, state->args.color);
cairo_paint(cairo);
} else {
render_background_image(cairo, surface->image,
state->args.mode, buffer_width, buffer_height);
}
cairo_restore(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_commit(surface->surface);
}