drm_hwcomposer: Wrap libdrm ops (minus modeset/flip) in C++ classes

This allows us to compartmentalize a bunch of code/logic from
hwcomposer.cpp into drm classes.

Signed-off-by: Sean Paul <seanpaul@chromium.org>

Change-Id: Id3f912126f1fdcd44d32c3eb4fba646f77590278

1 files changed, 70 insertions, 0 deletions

diff --git a/drmproperty.h b/drmproperty.h
new file mode 100644
index 0000000..eb5fcb5
--- /dev/null
+++ b/drmproperty.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2015 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_PROPERTY_H_
+#define ANDROID_DRM_PROPERTY_H_
+
+#include <stdint.h>
+#include <string>
+#include <xf86drmMode.h>
+#include <vector>
+
+namespace android {
+
+enum DrmPropertyType {
+  DRM_PROPERTY_TYPE_INT,
+  DRM_PROPERTY_TYPE_ENUM,
+};
+
+class DrmProperty {
+ public:
+  DrmProperty(drmModePropertyPtr p, uint64_t value);
+  DrmProperty();
+  ~DrmProperty();
+
+  void Init(drmModePropertyPtr p, uint64_t value);
+
+  uint32_t id() const;
+  std::string name() const;
+
+  int value(uint64_t *value) const;
+
+ private:
+  class DrmPropertyEnum {
+   public:
+    DrmPropertyEnum(drm_mode_property_enum *e);
+    ~DrmPropertyEnum();
+
+    uint64_t value_;
+    std::string name_;
+  };
+
+  DrmProperty(const DrmProperty &);
+
+  uint32_t id_;
+
+  DrmPropertyType type_;
+  uint32_t flags_;
+  std::string name_;
+  uint64_t value_;
+
+  std::vector<uint64_t> values_;
+  std::vector<DrmPropertyEnum> enums_;
+  std::vector<uint32_t> blob_ids_;
+};
+}
+
+#endif  // ANDROID_DRM_PROPERTY_H_