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Merge pull request #365 from emersion/wayland-backend-transform

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Cursors ✕ Output Transformations fixes
This commit is contained in:
Drew DeVault 2017-11-01 10:21:02 -04:00 • committed by GitHub
commit 0d9d670dbd
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 118 additions and 74 deletions
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59
types/wlr_output.c
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@ -267,8 +267,8 @@ static void output_cursor_render(struct wlr_output_cursor *cursor) {
struct wlr_box output_box;
output_box.x = output_box.y = 0;
output_box.width = cursor->output->width;
output_box.height = cursor->output->height;
wlr_output_effective_resolution(cursor->output, &output_box.width,
&output_box.height);
struct wlr_box cursor_box;
output_cursor_get_box(cursor, &cursor_box);
@ -500,3 +500,58 @@ void wlr_output_cursor_destroy(struct wlr_output_cursor *cursor) {
wl_list_remove(&cursor->link);
free(cursor);
}
void wlr_output_transform_apply_to_box(enum wl_output_transform transform,
struct wlr_box *box, struct wlr_box *dest) {
if (transform % 2 == 0) {
dest->width = box->width;
dest->height = box->height;
} else {
dest->width = box->height;
dest->height = box->width;
}
switch (transform) {
case WL_OUTPUT_TRANSFORM_NORMAL:
dest->x = box->x;
dest->y = box->y;
break;
case WL_OUTPUT_TRANSFORM_90:
dest->x = box->y;
dest->y = box->width - box->x;
break;
case WL_OUTPUT_TRANSFORM_180:
dest->x = box->width - box->x;
dest->y = box->height - box->y;
break;
case WL_OUTPUT_TRANSFORM_270:
dest->x = box->height - box->y;
dest->y = box->x;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED:
dest->x = box->width - box->x;
dest->y = box->y;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
dest->x = box->y;
dest->y = box->x;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
dest->x = box->x;
dest->y = box->height - box->y;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
dest->x = box->height - box->y;
dest->y = box->width - box->x;
break;
}
}
enum wl_output_transform wlr_output_transform_invert(
enum wl_output_transform transform) {
if ((transform & WL_OUTPUT_TRANSFORM_90) &&
!(transform & WL_OUTPUT_TRANSFORM_FLIPPED)) {
transform ^= WL_OUTPUT_TRANSFORM_180;
}
return transform;
}