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small refactor + better damage tracking

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This commit is contained in:
Will McKinnon 2022-12-24 18:43:07 -05:00
parent fbe784c8e3
commit efe11bd37f
1 changed files with 17 additions and 7 deletions
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24
sway/desktop/render.c
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@ -341,10 +341,26 @@ void render_box_shadow(struct sway_output *output, pixman_region32_t *output_dam
box.x -= output->lx * wlr_output->scale; box.x -= output->lx * wlr_output->scale;
box.y -= output->ly * wlr_output->scale; box.y -= output->ly * wlr_output->scale;
box.x -= blur_sigma;
box.y -= blur_sigma;
box.width += 2 * blur_sigma;
box.height += 2 * blur_sigma;
pixman_region32_t damage; pixman_region32_t damage;
pixman_region32_init(&damage); pixman_region32_init(&damage);
pixman_region32_union_rect(&damage, &damage, box.x, box.y, pixman_region32_union_rect(&damage, &damage, box.x, box.y,
box.width, box.height); box.width, box.height);
pixman_region32_t inner_damage;
pixman_region32_init(&inner_damage);
pixman_region32_union_rect(&inner_damage, &inner_damage,
box.x + blur_sigma + corner_radius,
box.y + blur_sigma + corner_radius,
box.width - (blur_sigma + corner_radius) * 2.0,
box.height - (blur_sigma + corner_radius) * 2.0);
pixman_region32_subtract(&damage, &damage, &inner_damage);
pixman_region32_fini(&inner_damage);
pixman_region32_intersect(&damage, &damage, output_damage); pixman_region32_intersect(&damage, &damage, output_damage);
bool damaged = pixman_region32_not_empty(&damage); bool damaged = pixman_region32_not_empty(&damage);
if (!damaged) { if (!damaged) {
@ -1003,14 +1019,8 @@ static void render_containers_linear(struct sway_output *output,
// render shadow // render shadow
const float color[4] = {0.0, 0.0, 0.0, 0.5}; const float color[4] = {0.0, 0.0, 0.0, 0.5};
// Mimic how a CSS box-shadow works by using blur_sigma as the shadow width
float blur_sigma = 20; float blur_sigma = 20;
struct wlr_box box = { struct wlr_box box = { state->x, state->y, state->width, state->height };
state->x - blur_sigma,
state->y - blur_sigma,
state->width + blur_sigma * 2,
state->height + blur_sigma * 2
};
scale_box(&box, output->wlr_output->scale); scale_box(&box, output->wlr_output->scale);
render_box_shadow(output, damage, &box, color, blur_sigma, deco_data.corner_radius); render_box_shadow(output, damage, &box, color, blur_sigma, deco_data.corner_radius);
} else { } else {