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rootston: Add alpha channel to views

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This commit is contained in:
Guido Günther 2018-02-23 11:30:55 +01:00
parent d08792bfff
commit e2ea1ebe48
3 changed files with 10 additions and 1 deletions
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4
rootston/desktop.c
View file

@ -25,6 +25,10 @@
struct roots_view *view_create() {
struct roots_view *view = calloc(1, sizeof(struct roots_view));
if (!view) {
return NULL;
}
view->alpha = 1.0f;
return view;
}

4
rootston/output.c
View file

@ -202,6 +202,7 @@ struct render_data {
struct roots_output *output;
struct timespec *when;
pixman_region32_t *damage;
float alpha;
};
/**
@ -296,7 +297,7 @@ static void render_surface(struct wlr_surface *surface, double lx, double ly,
pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects);
for (int i = 0; i < nrects; ++i) {
scissor_output(output, &rects[i]);
wlr_render_with_matrix(renderer, surface->texture, &matrix, 1.0f);
wlr_render_with_matrix(renderer, surface->texture, &matrix, data->alpha);
}
damage_finish:
@ -376,6 +377,7 @@ static void render_view(struct roots_view *view, struct render_data *data) {
return;
}
data->alpha = view->alpha;
render_decorations(view, data);
view_for_each_surface(view, render_surface, data);
}