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minor shadow optimization

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This commit is contained in:
Will McKinnon 2023-04-07 00:26:23 -04:00
parent 3e6f2366e7
commit f74c0fedb2
1 changed files with 17 additions and 5 deletions
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22
sway/desktop/render.c
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@ -1,4 +1,3 @@
#define _POSIX_C_SOURCE 200809L
#include <stdio.h> #include <stdio.h>
#include <assert.h> #include <assert.h>
#include <GLES2/gl2.h> #include <GLES2/gl2.h>
@ -9,14 +8,16 @@
#include <wlr/render/gles2.h> #include <wlr/render/gles2.h>
#include <wlr/render/wlr_renderer.h> #include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_buffer.h> #include <wlr/types/wlr_buffer.h>
#include <wlr/types/wlr_compositor.h>
#include <wlr/types/wlr_damage_ring.h> #include <wlr/types/wlr_damage_ring.h>
#include <wlr/types/wlr_matrix.h> #include <wlr/types/wlr_matrix.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_output.h> #include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_compositor.h> #include <wlr/types/wlr_output_layout.h>
#include <wlr/util/box.h>
#include <wlr/util/region.h> #include <wlr/util/region.h>
#include "log.h"
#include "config.h" #include "config.h"
#include "log.h"
#include "sway/config.h" #include "sway/config.h"
#include "sway/desktop/fx_renderer/fx_renderer.h" #include "sway/desktop/fx_renderer/fx_renderer.h"
#include "sway/input/input-manager.h" #include "sway/input/input-manager.h"
@ -340,9 +341,20 @@ void render_box_shadow(struct sway_output *output, pixman_region32_t *output_dam
box.height += 2 * blur_sigma; box.height += 2 * blur_sigma;
// Uses the outer radii of the window for a more realistic look // Uses the outer radii of the window for a more realistic look
corner_radius = corner_radius + border_thickness; corner_radius += border_thickness;
pixman_region32_t damage = create_damage(box, output_damage); pixman_region32_t damage = create_damage(box, output_damage);
// don't damage area behind window since we dont render it anyway
struct wlr_box inner_box;
memcpy(&inner_box, _box, sizeof(struct wlr_box));
inner_box.x += corner_radius;
inner_box.y += corner_radius;
inner_box.width -= 2 * corner_radius;
inner_box.height -= 2 * corner_radius;
pixman_region32_t inner_damage = create_damage(inner_box, output_damage);
pixman_region32_subtract(&damage, &damage, &inner_damage);
bool damaged = pixman_region32_not_empty(&damage); bool damaged = pixman_region32_not_empty(&damage);
if (!damaged) { if (!damaged) {
goto damage_finish; goto damage_finish;