commit 4c5469b192665c94118a8a558787cb9cec2d0765
author Georgios Pinitas <georgios.pinitas@arm.com> Tue May 21 13:32:43 2019 +0100
committer Georgios Pinitas <georgios.pinitas@arm.com> Mon Jun 03 14:51:29 2019 +0000
tree 168aa969de8243bdbb1f25247dd9f54d037ae32c
parent 43a129e94df41f9ac8bc78b702da5a387ada0494

COMPMID-2225: Add interface support for new quantized data types.

Add support for:
-QSYMM8, 8-bit quantized symmetric
-QSYMM8_PER_CHANNEL, 8-bit quantized symmetric with per channel quantization

Change-Id: I00c4ff98e44af37419470af61419ee95d0de2463
Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1236
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

arm_compute/core/Helpers.h

diff --git a/arm_compute/core/Helpers.h b/arm_compute/core/Helpers.h
index 235657a..87b1fdf 100644
--- a/arm_compute/core/Helpers.h
+++ b/arm_compute/core/Helpers.h
@@ -158,24 +158,24 @@
  *
  * @return The bilinear interpolated pixel value
  */
-inline uint8_t delta_bilinear_c1_quantized(const uint8_t *pixel_ptr, size_t stride, float dx, float dy, QuantizationInfo iq_info, QuantizationInfo oq_info)
+inline uint8_t delta_bilinear_c1_quantized(const uint8_t *pixel_ptr, size_t stride, float dx, float dy, UniformQuantizationInfo iq_info, UniformQuantizationInfo oq_info)
 {
     ARM_COMPUTE_ERROR_ON(pixel_ptr == nullptr);
 
     const float dx1 = 1.0f - dx;
     const float dy1 = 1.0f - dy;
 
-    const float a00 = iq_info.dequantize(*pixel_ptr);
-    const float a01 = iq_info.dequantize(*(pixel_ptr + 1));
-    const float a10 = iq_info.dequantize(*(pixel_ptr + stride));
-    const float a11 = iq_info.dequantize(*(pixel_ptr + stride + 1));
+    const float a00 = dequantize_qasymm8(*pixel_ptr, iq_info);
+    const float a01 = dequantize_qasymm8(*(pixel_ptr + 1), iq_info);
+    const float a10 = dequantize_qasymm8(*(pixel_ptr + stride), iq_info);
+    const float a11 = dequantize_qasymm8(*(pixel_ptr + stride + 1), iq_info);
 
     const float w1  = dx1 * dy1;
     const float w2  = dx * dy1;
     const float w3  = dx1 * dy;
     const float w4  = dx * dy;
     float       res = a00 * w1 + a01 * w2 + a10 * w3 + a11 * w4;
-    return static_cast<uint8_t>(oq_info.quantize(res, RoundingPolicy::TO_NEAREST_UP));
+    return static_cast<uint8_t>(quantize_qasymm8(res, oq_info));
 }
 
 /** Computes linear interpolation using the pointer to the top pixel and the pixel's distance between