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xwayland/glamor/gbm: Set GBM_BO_USE_LINEAR if only LINEAR modifier is supported 

Some drivers might not support explicit format modifiers. On these
drivers `gbm_bo_create_with_modifiers()` will fail and the
`gbm_bo_create()` code path will be used instead.

In this case, if the LINEAR modifier is advertised (and the INVALID
modifier is not) add the `GBM_BO_USE_LINEAR` flag.

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1438
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: José Expósito's avatarJosé Expósito <jexposit@redhat.com>
This commit is contained in:
José Expósito 2023-08-30 18:38:03 +02:00
parent 722e464bff
commit 287638db59
1 changed files with 19 additions and 3 deletions
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22
hw/xwayland/xwayland-glamor-gbm.c
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@ -284,6 +284,8 @@ xwl_glamor_gbm_create_pixmap_internal(struct xwl_screen *xwl_screen,
struct xwl_gbm_private *xwl_gbm = xwl_gbm_get(xwl_screen);
struct gbm_bo *bo = NULL;
PixmapPtr pixmap = NULL;
uint32_t num_modifiers = 0;
uint64_t *modifiers = NULL;
if (width > 0 && height > 0 && depth >= 15 &&
(hint == CREATE_PIXMAP_USAGE_BACKING_PIXMAP ||
@ -294,8 +296,6 @@ xwl_glamor_gbm_create_pixmap_internal(struct xwl_screen *xwl_screen,
#ifdef GBM_BO_WITH_MODIFIERS
if (xwl_gbm->dmabuf_capable) {
uint32_t num_modifiers = 0;
uint64_t *modifiers = NULL;
Bool supports_scanout = FALSE;
if (drawable) {
@ -324,7 +324,6 @@ xwl_glamor_gbm_create_pixmap_internal(struct xwl_screen *xwl_screen,
format, modifiers, num_modifiers);
#endif
}
free(modifiers);
}
#endif
if (bo == NULL) {
@ -332,6 +331,22 @@ xwl_glamor_gbm_create_pixmap_internal(struct xwl_screen *xwl_screen,
implicit = TRUE;
if (implicit_scanout)
usage |= GBM_BO_USE_SCANOUT;
if (num_modifiers > 0) {
Bool has_mod_invalid = FALSE, has_mod_linear = FALSE;
int i;
for (i = 0; i < num_modifiers; i++) {
if (modifiers[i] == DRM_FORMAT_MOD_INVALID)
has_mod_invalid = TRUE;
else if (modifiers[i] == DRM_FORMAT_MOD_LINEAR)
has_mod_linear = TRUE;
}
if (!has_mod_invalid && has_mod_linear)
usage |= GBM_BO_USE_LINEAR;
}
bo = gbm_bo_create(xwl_gbm->gbm, width, height, format, usage);
}
@ -350,6 +365,7 @@ xwl_glamor_gbm_create_pixmap_internal(struct xwl_screen *xwl_screen,
if (!pixmap)
pixmap = glamor_create_pixmap(xwl_screen->screen, width, height, depth, hint);
free(modifiers);
return pixmap;
}