Camera: Update dataspace to new spec, convert for older HALs

- Switch clients of camera devices to use new dataspace values
- For older HALs, map to legacy dataspace values

Bug: 27344373
Change-Id: Icabc345025383f987ef4472cd26182a580dc8b3c
diff --git a/media/libstagefright/CameraSource.cpp b/media/libstagefright/CameraSource.cpp
index 59f839c..cb974ae 100644
--- a/media/libstagefright/CameraSource.cpp
+++ b/media/libstagefright/CameraSource.cpp
@@ -758,7 +758,7 @@
     mStartTimeUs = 0;
     mNumInputBuffers = 0;
     mEncoderFormat = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
-    mEncoderDataSpace = HAL_DATASPACE_BT709;
+    mEncoderDataSpace = HAL_DATASPACE_V0_BT709;
 
     if (meta) {
         int64_t startTimeUs;
diff --git a/media/libstagefright/MediaCodecSource.cpp b/media/libstagefright/MediaCodecSource.cpp
index 772a5c4..97b764f 100644
--- a/media/libstagefright/MediaCodecSource.cpp
+++ b/media/libstagefright/MediaCodecSource.cpp
@@ -42,7 +42,7 @@
 
 const int32_t kDefaultSwVideoEncoderFormat = HAL_PIXEL_FORMAT_YCbCr_420_888;
 const int32_t kDefaultHwVideoEncoderFormat = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
-const int32_t kDefaultVideoEncoderDataSpace = HAL_DATASPACE_BT709;
+const int32_t kDefaultVideoEncoderDataSpace = HAL_DATASPACE_V0_BT709;
 
 const int kStopTimeoutUs = 300000; // allow 1 sec for shutting down encoder
 
diff --git a/services/camera/libcameraservice/api1/client2/CallbackProcessor.cpp b/services/camera/libcameraservice/api1/client2/CallbackProcessor.cpp
index 5f4fb22..b4b269a 100644
--- a/services/camera/libcameraservice/api1/client2/CallbackProcessor.cpp
+++ b/services/camera/libcameraservice/api1/client2/CallbackProcessor.cpp
@@ -155,7 +155,7 @@
                 callbackFormat, params.previewFormat);
         res = device->createStream(mCallbackWindow,
                 params.previewWidth, params.previewHeight, callbackFormat,
-                HAL_DATASPACE_JFIF, CAMERA3_STREAM_ROTATION_0, &mCallbackStreamId);
+                HAL_DATASPACE_V0_JFIF, CAMERA3_STREAM_ROTATION_0, &mCallbackStreamId);
         if (res != OK) {
             ALOGE("%s: Camera %d: Can't create output stream for callbacks: "
                     "%s (%d)", __FUNCTION__, mId,
diff --git a/services/camera/libcameraservice/api1/client2/JpegProcessor.cpp b/services/camera/libcameraservice/api1/client2/JpegProcessor.cpp
index 3923853..e97618c 100644
--- a/services/camera/libcameraservice/api1/client2/JpegProcessor.cpp
+++ b/services/camera/libcameraservice/api1/client2/JpegProcessor.cpp
@@ -145,7 +145,7 @@
         // Create stream for HAL production
         res = device->createStream(mCaptureWindow,
                 params.pictureWidth, params.pictureHeight,
-                HAL_PIXEL_FORMAT_BLOB, HAL_DATASPACE_JFIF,
+                HAL_PIXEL_FORMAT_BLOB, HAL_DATASPACE_V0_JFIF,
                 CAMERA3_STREAM_ROTATION_0, &mCaptureStreamId);
         if (res != OK) {
             ALOGE("%s: Camera %d: Can't create output stream for capture: "
diff --git a/services/camera/libcameraservice/api1/client2/Parameters.cpp b/services/camera/libcameraservice/api1/client2/Parameters.cpp
index d4022cd..5779176 100644
--- a/services/camera/libcameraservice/api1/client2/Parameters.cpp
+++ b/services/camera/libcameraservice/api1/client2/Parameters.cpp
@@ -872,7 +872,7 @@
 
     // Set up initial state for non-Camera.Parameters state variables
     videoFormat = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
-    videoDataSpace = HAL_DATASPACE_BT709;
+    videoDataSpace = HAL_DATASPACE_V0_BT709;
     videoBufferMode = hardware::ICamera::VIDEO_BUFFER_MODE_DATA_CALLBACK_YUV;
     playShutterSound = true;
     enableFaceDetect = false;
diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp
index 05c5323..331f10d 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Device.cpp
@@ -410,6 +410,31 @@
     return measured;
 }
 
+/**
+ * Map Android N dataspace definitions back to Android M definitions, for
+ * use with HALv3.3 or older.
+ *
+ * Only map where correspondences exist, and otherwise preserve the value.
+ */
+android_dataspace Camera3Device::mapToLegacyDataspace(android_dataspace dataSpace) {
+    switch (dataSpace) {
+        case HAL_DATASPACE_V0_SRGB_LINEAR:
+            return HAL_DATASPACE_SRGB_LINEAR;
+        case HAL_DATASPACE_V0_SRGB:
+            return HAL_DATASPACE_SRGB;
+        case HAL_DATASPACE_V0_JFIF:
+            return HAL_DATASPACE_JFIF;
+        case HAL_DATASPACE_V0_BT601_625:
+            return HAL_DATASPACE_BT601_625;
+        case HAL_DATASPACE_V0_BT601_525:
+            return HAL_DATASPACE_BT601_525;
+        case HAL_DATASPACE_V0_BT709:
+            return HAL_DATASPACE_BT709;
+        default:
+            return dataSpace;
+    }
+}
+
 ssize_t Camera3Device::getJpegBufferSize(uint32_t width, uint32_t height) const {
     // Get max jpeg size (area-wise).
     Size maxJpegResolution = getMaxJpegResolution();
@@ -1006,6 +1031,10 @@
     if (mDeviceVersion <= CAMERA_DEVICE_API_VERSION_3_2) {
         streamSetId = CAMERA3_STREAM_SET_ID_INVALID;
     }
+    // Use legacy dataspace values for older HALs
+    if (mDeviceVersion <= CAMERA_DEVICE_API_VERSION_3_3) {
+        dataSpace = mapToLegacyDataspace(dataSpace);
+    }
     if (format == HAL_PIXEL_FORMAT_BLOB) {
         ssize_t blobBufferSize;
         if (dataSpace != HAL_DATASPACE_DEPTH) {
diff --git a/services/camera/libcameraservice/device3/Camera3Device.h b/services/camera/libcameraservice/device3/Camera3Device.h
index 5b1c87e..ba092d0 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.h
+++ b/services/camera/libcameraservice/device3/Camera3Device.h
@@ -404,6 +404,11 @@
      */
     static nsecs_t getMonoToBoottimeOffset();
 
+    /**
+     * Helper function to map between legacy and new dataspace enums
+     */
+    static android_dataspace mapToLegacyDataspace(android_dataspace dataSpace);
+
     struct RequestTrigger {
         // Metadata tag number, e.g. android.control.aePrecaptureTrigger
         uint32_t metadataTag;