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-rw-r--r--render/gbm_allocator.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/render/gbm_allocator.c b/render/gbm_allocator.c
index bd69737f..955e65af 100644
--- a/render/gbm_allocator.c
+++ b/render/gbm_allocator.c
@@ -67,6 +67,7 @@ static struct wlr_gbm_buffer *create_buffer(struct wlr_gbm_allocator *alloc,
struct gbm_device *gbm_device = alloc->gbm_device;
struct gbm_bo *bo = NULL;
+ bool has_modifier = true;
if (format->len > 0) {
bo = gbm_bo_create_with_modifiers(gbm_device, width, height,
format->format, format->modifiers, format->len);
@@ -78,6 +79,7 @@ static struct wlr_gbm_buffer *create_buffer(struct wlr_gbm_allocator *alloc,
usage |= GBM_BO_USE_LINEAR;
}
bo = gbm_bo_create(gbm_device, width, height, format->format, usage);
+ has_modifier = false;
}
if (bo == NULL) {
wlr_log(WLR_ERROR, "gbm_bo_create failed");
@@ -99,9 +101,16 @@ static struct wlr_gbm_buffer *create_buffer(struct wlr_gbm_allocator *alloc,
return NULL;
}
+ // If the buffer has been allocated with an implicit modifier, make sure we
+ // don't populate the modifier field: other parts of the stack may not
+ // understand modifiers, and they can't strip the modifier.
+ if (!has_modifier) {
+ buffer->dmabuf.modifier = DRM_FORMAT_MOD_INVALID;
+ }
+
wlr_log(WLR_DEBUG, "Allocated %dx%d GBM buffer (format 0x%"PRIX32", "
"modifier 0x%"PRIX64")", buffer->base.width, buffer->base.height,
- gbm_bo_get_format(bo), gbm_bo_get_modifier(bo));
+ buffer->dmabuf.format, buffer->dmabuf.modifier);
return buffer;
}