mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-12-23 10:29:49 +01:00
4555fc8a54
It was broken because the damage extents were rotated about its own center, not about the center of the surface. This adds a new wlr_region_rotated_bounds that rotates regions. This allows us to have only one code path (for both non-rotated views and rotated views) and optimizes rendering for rotated views.
179 lines
5.1 KiB
C
179 lines
5.1 KiB
C
#include <math.h>
|
|
#include <stdlib.h>
|
|
#include <wlr/util/region.h>
|
|
|
|
void wlr_region_scale(pixman_region32_t *dst, pixman_region32_t *src,
|
|
float scale) {
|
|
if (scale == 1) {
|
|
pixman_region32_copy(dst, src);
|
|
return;
|
|
}
|
|
|
|
int nrects;
|
|
pixman_box32_t *src_rects = pixman_region32_rectangles(src, &nrects);
|
|
|
|
pixman_box32_t *dst_rects = malloc(nrects * sizeof(pixman_box32_t));
|
|
if (dst_rects == NULL) {
|
|
return;
|
|
}
|
|
|
|
for (int i = 0; i < nrects; ++i) {
|
|
dst_rects[i].x1 = floor(src_rects[i].x1 * scale);
|
|
dst_rects[i].x2 = ceil(src_rects[i].x2 * scale);
|
|
dst_rects[i].y1 = floor(src_rects[i].y1 * scale);
|
|
dst_rects[i].y2 = ceil(src_rects[i].y2 * scale);
|
|
}
|
|
|
|
pixman_region32_fini(dst);
|
|
pixman_region32_init_rects(dst, dst_rects, nrects);
|
|
free(dst_rects);
|
|
}
|
|
|
|
void wlr_region_transform(pixman_region32_t *dst, pixman_region32_t *src,
|
|
enum wl_output_transform transform, int width, int height) {
|
|
if (transform == WL_OUTPUT_TRANSFORM_NORMAL) {
|
|
pixman_region32_copy(dst, src);
|
|
return;
|
|
}
|
|
|
|
int nrects;
|
|
pixman_box32_t *src_rects = pixman_region32_rectangles(src, &nrects);
|
|
|
|
pixman_box32_t *dst_rects = malloc(nrects * sizeof(pixman_box32_t));
|
|
if (dst_rects == NULL) {
|
|
return;
|
|
}
|
|
|
|
for (int i = 0; i < nrects; ++i) {
|
|
switch (transform) {
|
|
case WL_OUTPUT_TRANSFORM_NORMAL:
|
|
dst_rects[i].x1 = src_rects[i].x1;
|
|
dst_rects[i].y1 = src_rects[i].y1;
|
|
dst_rects[i].x2 = src_rects[i].x2;
|
|
dst_rects[i].y2 = src_rects[i].y2;
|
|
break;
|
|
case WL_OUTPUT_TRANSFORM_90:
|
|
dst_rects[i].x1 = src_rects[i].y1;
|
|
dst_rects[i].y1 = width - src_rects[i].x2;
|
|
dst_rects[i].x2 = src_rects[i].y2;
|
|
dst_rects[i].y2 = width - src_rects[i].x1;
|
|
break;
|
|
case WL_OUTPUT_TRANSFORM_180:
|
|
dst_rects[i].x1 = width - src_rects[i].x2;
|
|
dst_rects[i].y1 = height - src_rects[i].y2;
|
|
dst_rects[i].x2 = width - src_rects[i].x1;
|
|
dst_rects[i].y2 = height - src_rects[i].y1;
|
|
break;
|
|
case WL_OUTPUT_TRANSFORM_270:
|
|
dst_rects[i].x1 = height - src_rects[i].y2;
|
|
dst_rects[i].y1 = src_rects[i].x1;
|
|
dst_rects[i].x2 = height - src_rects[i].y1;
|
|
dst_rects[i].y2 = src_rects[i].x2;
|
|
break;
|
|
case WL_OUTPUT_TRANSFORM_FLIPPED:
|
|
dst_rects[i].x1 = width - src_rects[i].x2;
|
|
dst_rects[i].y1 = src_rects[i].y1;
|
|
dst_rects[i].x2 = width - src_rects[i].x1;
|
|
dst_rects[i].y2 = src_rects[i].y2;
|
|
break;
|
|
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
|
|
dst_rects[i].x1 = height - src_rects[i].y2;
|
|
dst_rects[i].y1 = width - src_rects[i].x2;
|
|
dst_rects[i].x2 = height - src_rects[i].y1;
|
|
dst_rects[i].y2 = width - src_rects[i].x1;
|
|
break;
|
|
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
|
|
dst_rects[i].x1 = src_rects[i].x1;
|
|
dst_rects[i].y1 = height - src_rects[i].y2;
|
|
dst_rects[i].x2 = src_rects[i].x2;
|
|
dst_rects[i].y2 = height - src_rects[i].y1;
|
|
break;
|
|
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
|
|
dst_rects[i].x1 = src_rects[i].y1;
|
|
dst_rects[i].y1 = src_rects[i].x1;
|
|
dst_rects[i].x2 = src_rects[i].y2;
|
|
dst_rects[i].y2 = src_rects[i].x2;
|
|
break;
|
|
}
|
|
}
|
|
|
|
pixman_region32_fini(dst);
|
|
pixman_region32_init_rects(dst, dst_rects, nrects);
|
|
free(dst_rects);
|
|
}
|
|
|
|
void wlr_region_expand(pixman_region32_t *dst, pixman_region32_t *src,
|
|
int distance) {
|
|
if (distance == 0) {
|
|
pixman_region32_copy(dst, src);
|
|
return;
|
|
}
|
|
|
|
int nrects;
|
|
pixman_box32_t *src_rects = pixman_region32_rectangles(src, &nrects);
|
|
|
|
pixman_box32_t *dst_rects = malloc(nrects * sizeof(pixman_box32_t));
|
|
if (dst_rects == NULL) {
|
|
return;
|
|
}
|
|
|
|
for (int i = 0; i < nrects; ++i) {
|
|
dst_rects[i].x1 = src_rects[i].x1 - distance;
|
|
dst_rects[i].x2 = src_rects[i].x2 + distance;
|
|
dst_rects[i].y1 = src_rects[i].y1 - distance;
|
|
dst_rects[i].y2 = src_rects[i].y2 + distance;
|
|
}
|
|
|
|
pixman_region32_fini(dst);
|
|
pixman_region32_init_rects(dst, dst_rects, nrects);
|
|
free(dst_rects);
|
|
}
|
|
|
|
void wlr_region_rotated_bounds(pixman_region32_t *dst, pixman_region32_t *src,
|
|
float rotation, int ox, int oy) {
|
|
if (rotation == 0) {
|
|
pixman_region32_copy(dst, src);
|
|
return;
|
|
}
|
|
|
|
int nrects;
|
|
pixman_box32_t *src_rects = pixman_region32_rectangles(src, &nrects);
|
|
|
|
pixman_box32_t *dst_rects = malloc(nrects * sizeof(pixman_box32_t));
|
|
if (dst_rects == NULL) {
|
|
return;
|
|
}
|
|
|
|
for (int i = 0; i < nrects; ++i) {
|
|
double x1 = src_rects[i].x1 - ox;
|
|
double y1 = src_rects[i].y1 - oy;
|
|
double x2 = src_rects[i].x2 - ox;
|
|
double y2 = src_rects[i].y2 - oy;
|
|
|
|
double rx1 = x1 * cos(rotation) - y1 * sin(rotation);
|
|
double ry1 = x1 * sin(rotation) + y1 * cos(rotation);
|
|
|
|
double rx2 = x2 * cos(rotation) - y1 * sin(rotation);
|
|
double ry2 = x2 * sin(rotation) + y1 * cos(rotation);
|
|
|
|
double rx3 = x2 * cos(rotation) - y2 * sin(rotation);
|
|
double ry3 = x2 * sin(rotation) + y2 * cos(rotation);
|
|
|
|
double rx4 = x1 * cos(rotation) - y2 * sin(rotation);
|
|
double ry4 = x1 * sin(rotation) + y2 * cos(rotation);
|
|
|
|
x1 = fmin(fmin(rx1, rx2), fmin(rx3, rx4));
|
|
y1 = fmin(fmin(ry1, ry2), fmin(ry3, ry4));
|
|
x2 = fmax(fmax(rx1, rx2), fmax(rx3, rx4));
|
|
y2 = fmax(fmax(ry1, ry2), fmax(ry3, ry4));
|
|
|
|
dst_rects[i].x1 = floor(ox + x1);
|
|
dst_rects[i].x2 = ceil(ox + x2);
|
|
dst_rects[i].y1 = floor(oy + y1);
|
|
dst_rects[i].y2 = ceil(oy + y2);
|
|
}
|
|
|
|
pixman_region32_fini(dst);
|
|
pixman_region32_init_rects(dst, dst_rects, nrects);
|
|
free(dst_rects);
|
|
}
|