Int key for the named buffers.

Also, rename them to global buffers from named buffers.

Bug: 38320428
Test: Run frameworks/native/libs/vr/libdvr/tests on device
Change-Id: I2109aea77e35f2ccd8055208058df4b7287c1d5e
diff --git a/libs/vr/libdisplay/Android.bp b/libs/vr/libdisplay/Android.bp
index d90521a..c0c7e2f 100644
--- a/libs/vr/libdisplay/Android.bp
+++ b/libs/vr/libdisplay/Android.bp
@@ -45,6 +45,7 @@
 
 headerLibraries = [
     "vulkan_headers",
+    "libdvr_headers",
 ]
 
 cc_library {
diff --git a/libs/vr/libdisplay/display_client.cpp b/libs/vr/libdisplay/display_client.cpp
index 935ca2e..6e5d432 100644
--- a/libs/vr/libdisplay/display_client.cpp
+++ b/libs/vr/libdisplay/display_client.cpp
@@ -176,14 +176,14 @@
     return ErrorStatus(error);
 }
 
-Status<std::unique_ptr<IonBuffer>> DisplayClient::GetNamedBuffer(
-    const std::string& name) {
-  auto status = InvokeRemoteMethod<DisplayProtocol::GetNamedBuffer>(name);
+Status<std::unique_ptr<IonBuffer>> DisplayClient::GetGlobalBuffer(
+    DvrGlobalBufferKey key) {
+  auto status = InvokeRemoteMethod<DisplayProtocol::GetGlobalBuffer>(key);
   if (!status) {
     ALOGE(
-        "DisplayClient::GetNamedBuffer: Failed to get named buffer: name=%s; "
+        "DisplayClient::GetGlobalBuffer: Failed to get named buffer: key=%d; "
         "error=%s",
-        name.c_str(), status.GetErrorMessage().c_str());
+        key, status.GetErrorMessage().c_str());
     return status.error_status();
   }
 
@@ -192,9 +192,9 @@
   const int ret = native_buffer_handle.Import(ion_buffer.get());
   if (ret < 0) {
     ALOGE(
-        "DisplayClient::GetNamedBuffer: Failed to import named buffer: "
-        "name=%s; error=%s",
-        name.c_str(), strerror(-ret));
+        "DisplayClient::GetGlobalBuffer: Failed to import global buffer: "
+        "key=%d; error=%s",
+        key, strerror(-ret));
     return ErrorStatus(-ret);
   }
 
diff --git a/libs/vr/libdisplay/display_manager_client.cpp b/libs/vr/libdisplay/display_manager_client.cpp
index a99f2a3..47c4599 100644
--- a/libs/vr/libdisplay/display_manager_client.cpp
+++ b/libs/vr/libdisplay/display_manager_client.cpp
@@ -32,13 +32,13 @@
   return status;
 }
 
-pdx::Status<std::unique_ptr<IonBuffer>> DisplayManagerClient::SetupNamedBuffer(
-    const std::string& name, size_t size, uint64_t usage) {
-  auto status = InvokeRemoteMethod<DisplayManagerProtocol::SetupNamedBuffer>(
-      name, size, usage);
+pdx::Status<std::unique_ptr<IonBuffer>> DisplayManagerClient::SetupGlobalBuffer(
+    DvrGlobalBufferKey key, size_t size, uint64_t usage) {
+  auto status = InvokeRemoteMethod<DisplayManagerProtocol::SetupGlobalBuffer>(
+      key, size, usage);
   if (!status) {
     ALOGE(
-        "DisplayManagerClient::SetupPoseBuffer: Failed to create the named "
+        "DisplayManagerClient::SetupGlobalBuffer: Failed to create the global "
         "buffer %s",
         status.GetErrorMessage().c_str());
     return status.error_status();
@@ -49,9 +49,9 @@
   const int ret = native_buffer_handle.Import(ion_buffer.get());
   if (ret < 0) {
     ALOGE(
-        "DisplayClient::GetNamedBuffer: Failed to import named buffer: "
-        "name=%s; error=%s",
-        name.c_str(), strerror(-ret));
+        "DisplayClient::GetGlobalBuffer: Failed to import global buffer: "
+        "key=%d; error=%s",
+        key, strerror(-ret));
     return ErrorStatus(-ret);
   }
 
diff --git a/libs/vr/libdisplay/include/private/dvr/display_client.h b/libs/vr/libdisplay/include/private/dvr/display_client.h
index 7a7f670..e5b3340 100644
--- a/libs/vr/libdisplay/include/private/dvr/display_client.h
+++ b/libs/vr/libdisplay/include/private/dvr/display_client.h
@@ -1,6 +1,7 @@
 #ifndef ANDROID_DVR_DISPLAY_CLIENT_H_
 #define ANDROID_DVR_DISPLAY_CLIENT_H_
 
+#include <dvr/dvr_api.h>
 #include <hardware/hwcomposer.h>
 #include <pdx/client.h>
 #include <pdx/file_handle.h>
@@ -67,8 +68,8 @@
 class DisplayClient : public pdx::ClientBase<DisplayClient> {
  public:
   pdx::Status<Metrics> GetDisplayMetrics();
-  pdx::Status<std::unique_ptr<IonBuffer>> GetNamedBuffer(
-      const std::string& name);
+  pdx::Status<std::unique_ptr<IonBuffer>> GetGlobalBuffer(
+      DvrGlobalBufferKey key);
   pdx::Status<std::unique_ptr<Surface>> CreateSurface(
       const SurfaceAttributes& attributes);
 
diff --git a/libs/vr/libdisplay/include/private/dvr/display_manager_client.h b/libs/vr/libdisplay/include/private/dvr/display_manager_client.h
index a5b4e7e..8bf12b6 100644
--- a/libs/vr/libdisplay/include/private/dvr/display_manager_client.h
+++ b/libs/vr/libdisplay/include/private/dvr/display_manager_client.h
@@ -21,8 +21,8 @@
   ~DisplayManagerClient() override;
 
   pdx::Status<std::vector<SurfaceState>> GetSurfaceState();
-  pdx::Status<std::unique_ptr<IonBuffer>> SetupNamedBuffer(
-      const std::string& name, size_t size, uint64_t usage);
+  pdx::Status<std::unique_ptr<IonBuffer>> SetupGlobalBuffer(
+      DvrGlobalBufferKey key, size_t size, uint64_t usage);
   pdx::Status<std::unique_ptr<ConsumerQueue>> GetSurfaceQueue(int surface_id,
                                                               int queue_id);
 
diff --git a/libs/vr/libdisplay/include/private/dvr/display_protocol.h b/libs/vr/libdisplay/include/private/dvr/display_protocol.h
index 19bfb30..b22ddfa 100644
--- a/libs/vr/libdisplay/include/private/dvr/display_protocol.h
+++ b/libs/vr/libdisplay/include/private/dvr/display_protocol.h
@@ -8,6 +8,7 @@
 
 #include <dvr/dvr_display_types.h>
 
+#include <dvr/dvr_api.h>
 #include <pdx/rpc/buffer_wrapper.h>
 #include <pdx/rpc/remote_method.h>
 #include <pdx/rpc/serializable.h>
@@ -192,7 +193,7 @@
   // Op codes.
   enum {
     kOpGetMetrics = 0,
-    kOpGetNamedBuffer,
+    kOpGetGlobalBuffer,
     kOpIsVrAppRunning,
     kOpCreateSurface,
     kOpGetSurfaceInfo,
@@ -206,8 +207,8 @@
 
   // Methods.
   PDX_REMOTE_METHOD(GetMetrics, kOpGetMetrics, Metrics(Void));
-  PDX_REMOTE_METHOD(GetNamedBuffer, kOpGetNamedBuffer,
-                    LocalNativeBufferHandle(std::string name));
+  PDX_REMOTE_METHOD(GetGlobalBuffer, kOpGetGlobalBuffer,
+                    LocalNativeBufferHandle(DvrGlobalBufferKey key));
   PDX_REMOTE_METHOD(IsVrAppRunning, kOpIsVrAppRunning, bool(Void));
   PDX_REMOTE_METHOD(CreateSurface, kOpCreateSurface,
                     SurfaceInfo(const SurfaceAttributes& attributes));
@@ -232,7 +233,7 @@
   enum {
     kOpGetSurfaceState = 0,
     kOpGetSurfaceQueue,
-    kOpSetupNamedBuffer,
+    kOpSetupGlobalBuffer,
     kOpGetConfigurationData,
   };
 
@@ -245,9 +246,9 @@
                     std::vector<SurfaceState>(Void));
   PDX_REMOTE_METHOD(GetSurfaceQueue, kOpGetSurfaceQueue,
                     LocalChannelHandle(int surface_id, int queue_id));
-  PDX_REMOTE_METHOD(SetupNamedBuffer, kOpSetupNamedBuffer,
-                    LocalNativeBufferHandle(const std::string& name,
-                                            size_t size, uint64_t usage));
+  PDX_REMOTE_METHOD(SetupGlobalBuffer, kOpSetupGlobalBuffer,
+                    LocalNativeBufferHandle(DvrGlobalBufferKey key, size_t size,
+                                            uint64_t usage));
   PDX_REMOTE_METHOD(GetConfigurationData, kOpGetConfigurationData,
                     std::string(ConfigFileType config_type));
 };