Load and apply a vcgt table from an ICC file to the internal display

ui/display/chromeos/test/action_logger_util.cc

Index: ui/display/chromeos/test/action_logger_util.cc
diff --git a/ui/display/chromeos/test/action_logger_util.cc b/ui/display/chromeos/test/action_logger_util.cc
index c798b48c06c468d051c42353bcd1389375188796..63128d7816c30cc9679914d44ae9cc548ad43c22 100644
--- a/ui/display/chromeos/test/action_logger_util.cc
+++ b/ui/display/chromeos/test/action_logger_util.cc
@@ -5,6 +5,7 @@
 #include "ui/display/chromeos/test/action_logger_util.h"
 
 #include "base/format_macros.h"
+#include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "ui/display/types/display_mode.h"
 #include "ui/display/types/display_snapshot.h"
@@ -52,6 +53,20 @@ std::string GetSetHDCPStateAction(const DisplaySnapshot& output,
                             output.display_id(), state);
 }
 
+std::string SetGammaRampAction(const ui::DisplaySnapshot& output,
+                               const std::vector<uint16_t>& r,
+                               const std::vector<uint16_t>& g,
+                               const std::vector<uint16_t>& b) {
+  DCHECK((r.size() == g.size()) && (g.size() == b.size()));

[oshima, 2015/04/15 23:56:13]

DCHECK_EQ(r.size(), g.size());
DCHECK_EQ(g.size(), b.size());

would be better.

[robert.bradford, 2015/04/17 16:42:46]

Done.

+
+  std::string table;
+  for (unsigned int i = 0; i < r.size(); ++i) {

[oshima, 2015/04/15 23:56:13]

size_t

[robert.bradford, 2015/04/17 16:42:46]

Done.

+    table += base::StringPrintf(",rgb[%d]=%04x%04x%04x", i, r[i], g[i], b[i]);
+  }

[oshima, 2015/04/15 23:56:13]

ditto

[robert.bradford, 2015/04/17 16:42:46]

Done.

+  return base::StringPrintf("set_gamma_ramp(id=%" PRId64 "%s)",
+                            output.display_id(), table.c_str());
+}
+
 std::string JoinActions(const char* action, ...) {
   std::string actions;