Update scale and zeroPoint documentation am: c637d99357 am: ba32519aa6

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/ml/+/12070382

Change-Id: I0745e23e932dd0b3d923490599e1ebc45a150705

2 files changed, 26 insertions, 6 deletions

diff --git a/nn/runtime/include/NeuralNetworks.h b/nn/runtime/include/NeuralNetworks.h
index 2f7d3b38e..1eb2f5466 100644
--- a/nn/runtime/include/NeuralNetworks.h
+++ b/nn/runtime/include/NeuralNetworks.h
@@ -6230,11 +6230,21 @@ typedef struct ANeuralNetworksOperandType {
     const uint32_t* dimensions;
 
     /**
-     * These two fields are only used for quantized tensors.
-     * They must be zero for all other types.
-     * The dequantized value of each entry is (value - zeroPoint) * scale.
+     * The quantization scale.
+     *
+     * Must be 0 when not applicable to an operand type.
+     *
+     * See {@link OperandCode}.
      */
     float scale;
+
+    /**
+     * The quantization zero point.
+     *
+     * Must be 0 when not applicable to an operand type.
+     *
+     * See {@link OperandCode}.
+     */
     int32_t zeroPoint;
 } ANeuralNetworksOperandType;
 
diff --git a/nn/tools/api/NeuralNetworks.t b/nn/tools/api/NeuralNetworks.t
index a6ab569cd..d7cf8b2d0 100644
--- a/nn/tools/api/NeuralNetworks.t
+++ b/nn/tools/api/NeuralNetworks.t
@@ -656,11 +656,21 @@ typedef struct ANeuralNetworksOperandType {
     const uint32_t* dimensions;
 
     /**
-     * These two fields are only used for quantized tensors.
-     * They must be zero for all other types.
-     * The dequantized value of each entry is (value - zeroPoint) * scale.
+     * The quantization scale.
+     *
+     * Must be 0 when not applicable to an operand type.
+     *
+     * See {@link OperandCode}.
      */
     float scale;
+
+    /**
+     * The quantization zero point.
+     *
+     * Must be 0 when not applicable to an operand type.
+     *
+     * See {@link OperandCode}.
+     */
     int32_t zeroPoint;
 } ANeuralNetworksOperandType;