1 files changed, 133 insertions, 0 deletions
diff --git a/xbmc/windowing/gbm/drm/DRMObject.cpp b/xbmc/windowing/gbm/drm/DRMObject.cpp
new file mode 100644
index 0000000..599bb61
--- /dev/null
+++ b/xbmc/windowing/gbm/drm/DRMObject.cpp
@@ -0,0 +1,133 @@
+/*
+ *  Copyright (C) 2005-2020 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#include "DRMObject.h"
+
+#include "utils/log.h"
+
+#include <algorithm>
+#include <array>
+
+using namespace KODI::WINDOWING::GBM;
+
+namespace
+{
+
+constexpr std::array<std::pair<uint32_t, const char*>, 8> DrmModeObjectTypes = {
+    {{DRM_MODE_OBJECT_CRTC, "crtc"},
+     {DRM_MODE_OBJECT_CONNECTOR, "connector"},
+     {DRM_MODE_OBJECT_ENCODER, "encoder"},
+     {DRM_MODE_OBJECT_MODE, "mode"},
+     {DRM_MODE_OBJECT_PROPERTY, "property"},
+     {DRM_MODE_OBJECT_FB, "framebuffer"},
+     {DRM_MODE_OBJECT_BLOB, "blob"},
+     {DRM_MODE_OBJECT_PLANE, "plane"}}};
+}
+
+CDRMObject::CDRMObject(int fd) : m_fd(fd)
+{
+}
+
+std::string CDRMObject::GetTypeName() const
+{
+  auto name = std::find_if(DrmModeObjectTypes.begin(), DrmModeObjectTypes.end(),
+                           [this](const auto& p) { return p.first == m_type; });
+  if (name != DrmModeObjectTypes.end())
+    return name->second;
+
+  return "invalid type";
+}
+
+std::string CDRMObject::GetPropertyName(uint32_t propertyId) const
+{
+  auto prop = std::find_if(m_propsInfo.begin(), m_propsInfo.end(),
+                           [&propertyId](const auto& p) { return p->prop_id == propertyId; });
+  if (prop != m_propsInfo.end())
+    return prop->get()->name;
+
+  return "invalid property";
+}
+
+uint32_t CDRMObject::GetPropertyId(const std::string& name) const
+{
+  auto property = std::find_if(m_propsInfo.begin(), m_propsInfo.end(),
+                               [&name](const auto& prop) { return prop->name == name; });
+
+  if (property != m_propsInfo.end())
+    return property->get()->prop_id;
+
+  return 0;
+}
+
+bool CDRMObject::GetProperties(uint32_t id, uint32_t type)
+{
+  m_props.reset(drmModeObjectGetProperties(m_fd, id, type));
+  if (!m_props)
+    return false;
+
+  m_id = id;
+  m_type = type;
+
+  for (uint32_t i = 0; i < m_props->count_props; i++)
+    m_propsInfo.emplace_back(std::unique_ptr<drmModePropertyRes, DrmModePropertyResDeleter>(
+        drmModeGetProperty(m_fd, m_props->props[i])));
+
+  return true;
+}
+
+//! @todo: improve with c++17
+std::tuple<bool, uint64_t> CDRMObject::GetPropertyValue(const std::string& name,
+                                                        const std::string& valueName) const
+{
+  auto property = std::find_if(m_propsInfo.begin(), m_propsInfo.end(),
+                               [&name](const auto& prop) { return prop->name == name; });
+
+  if (property == m_propsInfo.end())
+    return std::make_tuple(false, 0);
+
+  auto prop = property->get();
+
+  if (!static_cast<bool>(drm_property_type_is(prop, DRM_MODE_PROP_ENUM)))
+    return std::make_tuple(false, 0);
+
+  for (int j = 0; j < prop->count_enums; j++)
+  {
+    if (prop->enums[j].name != valueName)
+      continue;
+
+    return std::make_tuple(true, prop->enums[j].value);
+  }
+
+  return std::make_tuple(false, 0);
+}
+
+bool CDRMObject::SetProperty(const std::string& name, uint64_t value)
+{
+  auto property = std::find_if(m_propsInfo.begin(), m_propsInfo.end(),
+                               [&name](const auto& prop) { return prop->name == name; });
+
+  if (property != m_propsInfo.end())
+  {
+    int ret = drmModeObjectSetProperty(m_fd, m_id, m_type, property->get()->prop_id, value);
+    if (ret == 0)
+      return true;
+  }
+
+  return false;
+}
+
+bool CDRMObject::SupportsProperty(const std::string& name)
+{
+  auto property = std::find_if(m_propsInfo.begin(), m_propsInfo.end(),
+                               [&name](const auto& prop) { return prop->name == name; });
+
+  if (property != m_propsInfo.end())
+    return true;
+
+  return false;
+}