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libweston: assert when transforming for views with dirty transforms

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If the view transform is dirty it might be incorrect. Also, we normally
set up the view transform matrix properly regardless of whether the
transform is enabled or not - but if we've never run
weston_view_update_transform() it will be all zeros.

This is a step towards removing view->transform.enabled checks and just
using the transform matrix in all cases.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
This commit is contained in:
Derek Foreman 2022-11-08 16:23:46 -06:00
parent d611ab24fd
commit 2dc8680d71
1 changed files with 4 additions and 0 deletions
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4
libweston/compositor.c
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@ -649,6 +649,8 @@ WL_EXPORT void
weston_view_to_global_float(struct weston_view *view,
float sx, float sy, float *x, float *y)
{
assert(!view->transform.dirty);
if (view->transform.enabled) {
struct weston_vector v = { { sx, sy, 0.0f, 1.0f } };
@ -1465,6 +1467,8 @@ WL_EXPORT void
weston_view_from_global_float(struct weston_view *view,
float x, float y, float *vx, float *vy)
{
assert(!view->transform.dirty);
if (view->transform.enabled) {
struct weston_vector v = { { x, y, 0.0f, 1.0f } };