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render: Don't crash on 0 dimensions 

Don't force compositors to check when an empty shape is being renderered.
References #2282. This was motivated by dwl crashing when setting window
borders to 0 (djpohly/dwl#51).
This commit is contained in:
Guido Cella 2020-08-27 15:40:15 +02:00 committed by Simon Ser
parent 2072d59da5
commit 6949d0fd38
1 changed files with 6 additions and 0 deletions
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6
render/wlr_renderer.c
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@ -99,6 +99,9 @@ bool wlr_render_subtexture_with_matrix(struct wlr_renderer *r,
void wlr_render_rect(struct wlr_renderer *r, const struct wlr_box *box,
const float color[static 4], const float projection[static 9]) {
if (box->width == 0 || box->height == 0) {
return;
}
assert(box->width > 0 && box->height > 0);
float matrix[9];
wlr_matrix_project_box(matrix, box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
@ -115,6 +118,9 @@ void wlr_render_quad_with_matrix(struct wlr_renderer *r,
void wlr_render_ellipse(struct wlr_renderer *r, const struct wlr_box *box,
const float color[static 4], const float projection[static 9]) {
if (box->width == 0 || box->height == 0) {
return;
}
assert(box->width > 0 && box->height > 0);
float matrix[9];
wlr_matrix_project_box(matrix, box, WL_OUTPUT_TRANSFORM_NORMAL, 0,