Pepper API implementation for output protection.

chromeos/display/output_configurator.h

Index: chromeos/display/output_configurator.h
diff --git a/chromeos/display/output_configurator.h b/chromeos/display/output_configurator.h
index 5891785381cb22161e41415a98e62b8fd00679b1..e7d0655923af1faa205762389981bf57cc118267 100644
--- a/chromeos/display/output_configurator.h
+++ b/chromeos/display/output_configurator.h
@@ -25,6 +25,10 @@ typedef XID RROutput;
 typedef XID RRCrtc;
 typedef XID RRMode;
 
+namespace chrome {
+class PepperOutputProtectionHost;
+}  // namespace chrome
+
 namespace chromeos {
 
 // Used to describe the state of a multi-display configuration.
@@ -36,6 +40,23 @@ enum OutputState {
   STATE_DUAL_EXTENDED,
 };
 
+// Video output link types.
+enum OutputLinkType {
+  OUTPUT_LINK_TYPE_NONE = 0,
+  OUTPUT_LINK_TYPE_UNKNOWN = 1 << 0,
+  OUTPUT_LINK_TYPE_INTERNAL = 1 << 1,
+  OUTPUT_LINK_TYPE_VGA = 1 << 2,
+  OUTPUT_LINK_TYPE_HDMI = 1 << 3,
+  OUTPUT_LINK_TYPE_DVI = 1 << 4,
+  OUTPUT_LINK_TYPE_DISPLAYPORT = 1 << 5,
+};
+
+// Content protection methods applied on video output link.
+enum OutputProtectionMethod {
+  OUTPUT_PROTECTION_METHOD_NONE,

[dmichael (off chromium), 2013/09/17 17:25:33]

 = 0?

[kcwu, 2013/09/17 23:15:32]

Done.

+  OUTPUT_PROTECTION_METHOD_HDCP = 1 << 0,
+};
+
 // This class interacts directly with the underlying Xrandr API to manipulate
 // CTRCs and Outputs.
 class CHROMEOS_EXPORT OutputConfigurator
@@ -218,6 +239,23 @@ class CHROMEOS_EXPORT OutputConfigurator
     // Sends a D-Bus message to the power manager telling it that the
     // machine is or is not projecting.
     virtual void SendProjectingStateToPowerManager(bool projecting) = 0;
+
+    // Register a client for output protection and request a client id. Returns
+    // 0 if requesting failed.
+    virtual uint64_t RegisterOutputProtectionClient() = 0;
+    // Unregister the client.
+    virtual void UnregisterOutputProtectionClient(uint64_t client_id) = 0;
+    // Query link status and protection status. Returns true on success.
+    virtual bool QueryOutputProtectionStatus(
+        uint64_t client_id,
+        uint32_t* link_mask,
+        uint32_t* protection_mask) = 0;
+
+    // Request the desired protection methods. Returns true when the protection
+    // request has been made.
+    virtual bool EnableOutputProtection(
+        uint64_t client_id,
+        uint32_t desired_method_mask) = 0;
   };
 
   // Helper class used by tests.
@@ -348,6 +386,30 @@ class CHROMEOS_EXPORT OutputConfigurator
   // so that time-consuming ConfigureOutputs() won't be called multiple times.
   void ScheduleConfigureOutputs();
 
+  // Register a client for output protection and request a client id. Returns
+  // 0 if requesting failed.
+  uint64_t RegisterOutputProtectionClient();
+  // Unregister the client.
+  void UnregisterOutputProtectionClient(uint64_t client_id);
+  // Query link status and protection status.
+  // |link_mask| is the type of connected output links, which is a bitmask
+  // of PP_OutputProtectionLinkType_Private values. |protection_mask| is the
+  // desired protection methods, which is a bitmask of the
+  // PP_OutputProtectionMethod_Private values.
+  // Returns true on success.
+  bool QueryOutputProtectionStatus(
+      uint64_t client_id,
+      uint32_t* link_mask,
+      uint32_t* protection_mask);
+
+  // Request the desired protection methods.
+  // |protection_mask| is the desired protection methods, which is a bitmask
+  // of the PP_OutputProtectionMethod_Private values.
+  // Returns true when the protection request has been made.
+  bool EnableOutputProtection(
+      uint64_t client_id,
+      uint32_t desired_method_mask);
+
  private:
   // Configure outputs.
   void ConfigureOutputs();