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-rw-r--r--kms++/src/plane.cpp25
1 files changed, 25 insertions, 0 deletions
diff --git a/kms++/src/plane.cpp b/kms++/src/plane.cpp
index e19910b..f68c8d0 100644
--- a/kms++/src/plane.cpp
+++ b/kms++/src/plane.cpp
@@ -5,6 +5,7 @@
#include <cassert>
#include <xf86drm.h>
#include <xf86drmMode.h>
+#include <algorithm>
#include <kms++/kms++.h>
@@ -66,6 +67,30 @@ PlaneType Plane::plane_type() const
}
}
+vector<Crtc*> Plane::get_possible_crtcs() const
+{
+ unsigned idx = 0;
+ vector<Crtc*> v;
+ auto crtcs = card().get_crtcs();
+
+ for (uint32_t crtc_mask = m_priv->drm_plane->possible_crtcs;
+ crtc_mask;
+ idx++, crtc_mask >>= 1) {
+
+ if ((crtc_mask & 1) == 0)
+ continue;
+
+ auto iter = find_if(crtcs.begin(), crtcs.end(), [idx](Crtc* crtc) { return crtc->idx() == idx; });
+
+ if (iter == crtcs.end())
+ throw runtime_error("get_possible_crtcs: crtc missing");
+
+ v.push_back(*iter);
+ }
+
+ return v;
+}
+
vector<PixelFormat> Plane::get_formats() const
{
auto p = m_priv->drm_plane;