drm_hwcomposer: Rework KMS composition planner + plane sharing support
Rewrite Layer-to-Plane planner. Get rid of ~200 redundant lines of code
+ added plane sharing functionality.
Closes: https://gitlab.freedesktop.org/drm-hwcomposer/drm-hwcomposer/-/issues/11
Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>
diff --git a/compositor/DrmKmsPlan.h b/compositor/DrmKmsPlan.h
new file mode 100644
index 0000000..35e66e9
--- /dev/null
+++ b/compositor/DrmKmsPlan.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_DRM_KMS_PLAN_H_
+#define ANDROID_DRM_KMS_PLAN_H_
+
+#include <memory>
+#include <vector>
+
+#include "drmhwcomposer.h"
+
+namespace android {
+
+class DrmDevice;
+
+struct DrmKmsPlan {
+ struct LayerToPlaneJoining {
+ DrmHwcLayer layer;
+ std::shared_ptr<BindingOwner<DrmPlane>> plane;
+ int z_pos;
+ };
+
+ std::vector<LayerToPlaneJoining> plan;
+
+ static auto CreateDrmKmsPlan(DrmDisplayPipeline &pipe,
+ std::vector<DrmHwcLayer> composition)
+ -> std::unique_ptr<DrmKmsPlan>;
+};
+
+} // namespace android
+#endif