libkms: Add Plane::supports_format

2 files changed, 12 insertions, 0 deletions

diff --git a/libkms++/plane.cpp b/libkms++/plane.cpp
index b9884e2..93567f1 100644
--- a/libkms++/plane.cpp
+++ b/libkms++/plane.cpp
@@ -57,6 +57,17 @@ bool Plane::supports_crtc(Crtc* crtc) const
 	return m_priv->drm_plane->possible_crtcs & (1 << crtc->idx());
 }
 
+bool Plane::supports_format(PixelFormat fmt) const
+{
+	auto p = m_priv->drm_plane;
+
+	for (unsigned i = 0; i < p->count_formats; ++i)
+		if ((uint32_t)fmt == p->formats[i])
+			return true;
+
+	return false;
+}
+
 PlaneType Plane::plane_type() const
 {
 	if (card().has_has_universal_planes())
diff --git a/libkms++/plane.h b/libkms++/plane.h
index 671e150..0c232c0 100644
--- a/libkms++/plane.h
+++ b/libkms++/plane.h
@@ -21,6 +21,7 @@ public:
 	void print_short() const;
 
 	bool supports_crtc(Crtc* crtc) const;
+	bool supports_format(PixelFormat fmt) const;
 
 	PlaneType plane_type() const;