drm_hwcomposer: Implement SetActiveConfigWithConstraints

Enough to get 100% passes in Composer 2.4 VTS.
Some SOCs require a VTS fix to pass [1]

[1]: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1954544
Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>

2 files changed, 10 insertions, 0 deletions

diff --git a/drm/ResourceManager.cpp b/drm/ResourceManager.cpp
index 789eca3..b294180 100644
--- a/drm/ResourceManager.cpp
+++ b/drm/ResourceManager.cpp
@@ -21,6 +21,7 @@
 #include <fcntl.h>
 #include <sys/stat.h>
 
+#include <ctime>
 #include <sstream>
 
 #include "bufferinfo/BufferInfoGetter.h"
@@ -114,6 +115,13 @@ int ResourceManager::AddDrmDevice(const std::string &path) {
   return ret;
 }
 
+auto ResourceManager::GetTimeMonotonicNs() -> int64_t {
+  struct timespec ts {};
+  clock_gettime(CLOCK_MONOTONIC, &ts);
+  constexpr int64_t kNsInSec = 1000000000LL;
+  return int64_t(ts.tv_sec) * kNsInSec + int64_t(ts.tv_nsec);
+}
+
 void ResourceManager::UpdateFrontendDisplays() {
   auto ordered_connectors = GetOrderedConnectors();
 
diff --git a/drm/ResourceManager.h b/drm/ResourceManager.h
index c4c3edd..88ba878 100644
--- a/drm/ResourceManager.h
+++ b/drm/ResourceManager.h
@@ -56,6 +56,8 @@ class ResourceManager {
     return main_lock_;
   }
 
+  static auto GetTimeMonotonicNs() -> int64_t;
+
  private:
   auto AddDrmDevice(std::string const &path) -> int;
   auto GetOrderedConnectors() -> std::vector<DrmConnector *>;