Revert "Revert "Creates a vendor APEX for the emulated camera pr..." am: e8c53d5bc7 am: af0170f1f4 am: ca39774216

Original change: https://android-review.googlesource.com/c/platform/hardware/google/camera/+/1966270

Change-Id: I8d33b1868774f1dba1f33a2e92198e3d5f71017b

11 files changed, 247 insertions, 20 deletions

diff --git a/devices/EmulatedCamera/hwl/EmulatedCameraProviderHWLImpl.cpp b/devices/EmulatedCamera/hwl/EmulatedCameraProviderHWLImpl.cpp
index 7e833dc..d4fae3e 100644
--- a/devices/EmulatedCamera/hwl/EmulatedCameraProviderHWLImpl.cpp
+++ b/devices/EmulatedCamera/hwl/EmulatedCameraProviderHWLImpl.cpp
@@ -35,11 +35,14 @@
 namespace android {
 
 // Location of the camera configuration files.
-const char* EmulatedCameraProviderHwlImpl::kConfigurationFileLocation[] = {
-    "/vendor/etc/config/emu_camera_back.json",
-    "/vendor/etc/config/emu_camera_front.json",
-    "/vendor/etc/config/emu_camera_depth.json",
+constexpr std::string_view kConfigurationFileNames[] = {
+    "emu_camera_back.json",
+    "emu_camera_front.json",
+    "emu_camera_depth.json",
 };
+constexpr std::string_view kConfigurationFileDirVendor = "/vendor/etc/config/";
+constexpr std::string_view kConfigurationFileDirApex =
+    "/apex/com.google.emulated.camera.provider.hal/etc/config/";
 
 constexpr StreamSize s240pStreamSize = std::pair(240, 180);
 constexpr StreamSize s720pStreamSize = std::pair(1280, 720);
@@ -698,11 +701,18 @@ status_t EmulatedCameraProviderHwlImpl::Initialize() {
   // accordingly, push any remaining physical cameras in the back.
   std::string config;
   size_t logical_id = 0;
-  std::vector<const char*> configurationFileLocation;
+  std::vector<std::string> config_file_locations;
+  std::string config_dir = "";
+  struct stat st;
+  if (stat(kConfigurationFileDirApex.data(), &st) == 0) {
+    config_dir += kConfigurationFileDirApex.data();
+  } else {
+    config_dir += kConfigurationFileDirVendor.data();
+  }
   char prop[PROPERTY_VALUE_MAX];
   if (!property_get_bool("ro.boot.qemu", false)) {
-    for (const auto& iter : kConfigurationFileLocation) {
-      configurationFileLocation.emplace_back(iter);
+    for (const auto& iter : kConfigurationFileNames) {
+      config_file_locations.emplace_back(config_dir + iter.data());
     }
   } else {
     // Android Studio Emulator
@@ -710,34 +720,38 @@ status_t EmulatedCameraProviderHwlImpl::Initialize() {
       if (WaitForQemuSfFakeCameraPropertyAvailable() == OK) {
         property_get("vendor.qemu.sf.fake_camera", prop, nullptr);
         if (strcmp(prop, "both") == 0) {
-          configurationFileLocation.emplace_back(kConfigurationFileLocation[0]);
-          configurationFileLocation.emplace_back(kConfigurationFileLocation[1]);
+          config_file_locations.emplace_back(config_dir +
+                                             kConfigurationFileNames[0].data());
+          config_file_locations.emplace_back(config_dir +
+                                             kConfigurationFileNames[1].data());
         } else if (strcmp(prop, "front") == 0) {
-          configurationFileLocation.emplace_back(kConfigurationFileLocation[1]);
+          config_file_locations.emplace_back(config_dir +
+                                             kConfigurationFileNames[1].data());
           logical_id = 1;
         } else if (strcmp(prop, "back") == 0) {
-          configurationFileLocation.emplace_back(kConfigurationFileLocation[0]);
+          config_file_locations.emplace_back(config_dir +
+                                             kConfigurationFileNames[0].data());
           logical_id = 1;
         }
       }
     }
   }
-  static_metadata_.resize(ARRAY_SIZE(kConfigurationFileLocation));
+  static_metadata_.resize(ARRAY_SIZE(kConfigurationFileNames));
 
-  for (const auto& config_path : configurationFileLocation) {
+  for (const auto& config_path : config_file_locations) {
     if (!android::base::ReadFileToString(config_path, &config)) {
       ALOGW("%s: Could not open configuration file: %s", __FUNCTION__,
-            config_path);
+            config_path.c_str());
       continue;
     }
 
     Json::CharReaderBuilder builder;
     std::unique_ptr<Json::CharReader> config_reader(builder.newCharReader());
     Json::Value root;
-    std::string errorMessage;
-    if (!config_reader->parse(&*config.begin(), &*config.end(), &root, &errorMessage)) {
-      ALOGE("Could not parse configuration file: %s",
-            errorMessage.c_str());
+    std::string error_message;
+    if (!config_reader->parse(&*config.begin(), &*config.end(), &root,
+                              &error_message)) {
+      ALOGE("Could not parse configuration file: %s", error_message.c_str());
       return BAD_VALUE;
     }
 
diff --git a/devices/EmulatedCamera/hwl/EmulatedCameraProviderHWLImpl.h b/devices/EmulatedCamera/hwl/EmulatedCameraProviderHWLImpl.h
index 5a13332..e9c086b 100644
--- a/devices/EmulatedCamera/hwl/EmulatedCameraProviderHWLImpl.h
+++ b/devices/EmulatedCamera/hwl/EmulatedCameraProviderHWLImpl.h
@@ -83,8 +83,6 @@ class EmulatedCameraProviderHwlImpl : public CameraProviderHwl {
   status_t WaitForQemuSfFakeCameraPropertyAvailable();
   bool SupportsMandatoryConcurrentStreams(uint32_t camera_id);
 
-  static const char* kConfigurationFileLocation[];
-
   std::vector<std::unique_ptr<HalCameraMetadata>> static_metadata_;
   // Logical to physical camera Id mapping. Empty value vector in case
   // of regular non-logical device.
diff --git a/devices/EmulatedCamera/hwl/apex/Android.bp b/devices/EmulatedCamera/hwl/apex/Android.bp
new file mode 100644
index 0000000..8f79f15
--- /dev/null
+++ b/devices/EmulatedCamera/hwl/apex/Android.bp
@@ -0,0 +1,69 @@
+// Copyright (C) 2022 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package {
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+apex_key {
+    name: "com.google.emulated.camera.provider.hal.key",
+    public_key: "com.google.emulated.camera.provider.hal.avbpubkey",
+    private_key: "com.google.emulated.camera.provider.hal.pem",
+}
+
+android_app_certificate {
+    name: "com.google.emulated.camera.provider.hal.certificate",
+    certificate: "com.google.emulated.camera.provider.hal",
+}
+
+prebuilt_etc {
+    name: "com.google.emulated.camera.provider.hal.rc",
+    src: "com.google.emulated.camera.provider.hal.rc",
+    installable: false,
+}
+
+apex {
+    name: "com.google.emulated.camera.provider.hal",
+    manifest: "apex_manifest.json",
+    key: "com.google.emulated.camera.provider.hal.key",
+    certificate: ":com.google.emulated.camera.provider.hal.certificate",
+    file_contexts: "file_contexts",
+    use_vndk_as_stable: true,
+    updatable: false,
+    // Install the apex in /vendor/apex
+    soc_specific: true,
+    binaries: [
+        "android.hardware.camera.provider@2.7-service-google",
+    ],
+    native_shared_libs: [
+        "libgooglecamerahwl_impl",
+    ],
+    overrides: [
+        "android.hardware.camera.provider@2.7-impl-google",
+        "android.hardware.camera.provider@2.7-service-google",
+        "libgooglecamerahwl_impl",
+    ],
+    prebuilts: [
+        "com.google.emulated.camera.provider.hal.rc",
+        "android.hardware.camera.concurrent.prebuilt.xml",
+        "android.hardware.camera.flash-autofocus.prebuilt.xml",
+        "android.hardware.camera.front.prebuilt.xml",
+        "android.hardware.camera.full.prebuilt.xml",
+        "android.hardware.camera.raw.prebuilt.xml",
+        "emu_camera_back.json",
+        "emu_camera_depth.json",
+        "emu_camera_front.json",
+    ],
+    vintf_fragments: [":android.hardware.camera.provider@2.7-service-google.xml"],
+}
diff --git a/devices/EmulatedCamera/hwl/apex/apex_manifest.json b/devices/EmulatedCamera/hwl/apex/apex_manifest.json
new file mode 100644
index 0000000..50c09a8
--- /dev/null
+++ b/devices/EmulatedCamera/hwl/apex/apex_manifest.json
@@ -0,0 +1,4 @@
+{
+  "name": "com.google.emulated.camera.provider.hal",
+  "version": 1
+}
diff --git a/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.avbpubkey b/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.avbpubkey
new file mode 100644
index 0000000..0c28e11
--- /dev/null
+++ b/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.avbpubkey
diff --git a/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.pem b/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.pem
new file mode 100644
index 0000000..94c79c9
--- /dev/null
+++ b/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.pem
@@ -0,0 +1,51 @@
+-----BEGIN RSA PRIVATE KEY-----
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+-----END RSA PRIVATE KEY-----
diff --git a/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.pk8 b/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.pk8
new file mode 100644
index 0000000..f83b5da
--- /dev/null
+++ b/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.pk8
diff --git a/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.rc b/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.rc
new file mode 100644
index 0000000..134cd8f
--- /dev/null
+++ b/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.rc
@@ -0,0 +1,7 @@
+service vendor.camera-provider-2-7-google /apex/com.google.emulated.camera.provider.hal/bin/hw/android.hardware.camera.provider@2.7-service-google
+    class hal
+    user system
+    group system
+    capabilities SYS_NICE
+    rlimit rtprio 10 10
+    task_profiles CameraServiceCapacity CameraServicePerformance
diff --git a/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.x509.pem b/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.x509.pem
new file mode 100644
index 0000000..528c923
--- /dev/null
+++ b/devices/EmulatedCamera/hwl/apex/com.google.emulated.camera.provider.hal.x509.pem
@@ -0,0 +1,34 @@
+-----BEGIN CERTIFICATE-----
+MIIF7TCCA9UCFHsvubLT/OxpJdqifK/l7sBMmpCoMA0GCSqGSIb3DQEBCwUAMIGx
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+-----END CERTIFICATE-----
diff --git a/devices/EmulatedCamera/hwl/apex/file_contexts b/devices/EmulatedCamera/hwl/apex/file_contexts
new file mode 100644
index 0000000..2f0ab85
--- /dev/null
+++ b/devices/EmulatedCamera/hwl/apex/file_contexts
@@ -0,0 +1,5 @@
+(/.*)?                                                             u:object_r:vendor_file:s0
+# Permission XMLs
+/etc/permissions(/.*)?                                             u:object_r:vendor_configs_file:s0
+# Service binary
+/bin/hw/android\.hardware\.camera\.provider@2\.7-service-google    u:object_r:hal_camera_default_exec:s0
diff --git a/devices/EmulatedCamera/hwl/configs/Android.bp b/devices/EmulatedCamera/hwl/configs/Android.bp
new file mode 100644
index 0000000..25690de
--- /dev/null
+++ b/devices/EmulatedCamera/hwl/configs/Android.bp
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package {
+    // See: http://go/android-license-faq
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+prebuilt_defaults {
+    name: "emu_camera_config_defaults",
+    relative_install_path: "config",
+    soc_specific: true,
+    installable: false,
+}
+
+prebuilt_etc {
+    name: "emu_camera_back.json",
+    src: "emu_camera_back.json",
+    defaults: ["emu_camera_config_defaults"],
+}
+
+prebuilt_etc {
+    name: "emu_camera_depth.json",
+    src: "emu_camera_depth.json",
+    defaults: ["emu_camera_config_defaults"],
+}
+
+prebuilt_etc {
+    name: "emu_camera_front.json",
+    src: "emu_camera_front.json",
+    defaults: ["emu_camera_config_defaults"],
+}