fix for gray_bug

mindspore/ccsrc/minddata/dataset/kernels/image/lite_cv/image_process.cc

@@ -511,79 +511,6 @@ static bool ConvertYUV420SPToBGR(const uint8_t *data, LDataType data_type, bool
   return true;
 }
 
-#ifdef ENABLE_NEON
-static uint8x8_t RGBToGray(const uint16x8_t &r_value, const uint16x8_t &g_value, const uint16x8_t &b_value,
-                           const uint16x4_t &r2y_value, const uint16x4_t &g2y_value, const uint16x4_t &b2y_value) {
-  uint32x4_t dst0_value = vmull_u16(vget_low_u16(g_value), g2y_value);
-  uint32x4_t dst1_value = vmull_u16(vget_high_u16(g_value), g2y_value);
-
-  dst0_value = vmlal_u16(dst0_value, vget_low_u16(r_value), r2y_value);
-  dst1_value = vmlal_u16(dst1_value, vget_high_u16(r_value), r2y_value);
-
-  dst0_value = vmlal_u16(dst0_value, vget_low_u16(b_value), b2y_value);
-  dst1_value = vmlal_u16(dst1_value, vget_high_u16(b_value), b2y_value);
-
-  uint8x8_t v_gray = vqmovn_u16(vcombine_u16(vrshrn_n_u32(dst0_value, GRAYSHIFT), vrshrn_n_u32(dst1_value, GRAYSHIFT)));
-
-  return v_gray;
-}
-
-static bool ConvertRGBAToGRAY_Neon(const uint8_t *srcBase, uint8_t *dstBase, int w, int h) {
-  const uint32_t r_to_gray = R2GRAY;
-  const uint32_t g_to_gray = G2GRAY;
-  const uint32_t b_to_gray = B2GRAY;
-
-  uint16x4_t r2y_value = vdup_n_u16(R2GRAY);
-  uint16x4_t g2y_value = vdup_n_u16(G2GRAY);
-  uint16x4_t b2y_value = vdup_n_u16(B2GRAY);
-
-  size_t w16b = w >= 15 ? w - 15 : 0;
-  size_t w8b = w >= 7 ? w - 7 : 0;
-
-  for (size_t i = 0; i < h; ++i) {
-    const uint8_t *src_ptr = srcBase + w * i * 4;
-    uint8_t *dst_ptr = dstBase + w * i * 4;
-    size_t src_j = 0u;
-    size_t dst_j = 0u;
-
-    for (; dst_j < w16b; src_j += 64, dst_j += 16) {
-      uint8x16x4_t src_value0 = vld4q_u8(src_ptr + src_j);
-
-      // 0
-      uint16x8_t r_value = vmovl_u8(vget_low_u8(src_value0.val[0]));
-      uint16x8_t g_value = vmovl_u8(vget_low_u8(src_value0.val[1]));
-      uint16x8_t b_value = vmovl_u8(vget_low_u8(src_value0.val[2]));
-      uint8x8_t gray_value0 = RGBToGray(r_value, g_value, b_value, r2y_value, g2y_value, b2y_value);
-
-      r_value = vmovl_u8(vget_high_u8(src_value0.val[0]));
-      g_value = vmovl_u8(vget_high_u8(src_value0.val[1]));
-      b_value = vmovl_u8(vget_high_u8(src_value0.val[2]));
-      uint8x8_t gray_value1 = RGBToGray(r_value, g_value, b_value, r2y_value, g2y_value, b2y_value);
-
-      vst1q_u8(dst_ptr + dst_j, vcombine_u8(gray_value0, gray_value1));
-    }
-
-    if (dst_j < w8b) {
-      uint8x8x4_t v_src = vld4_u8(src_ptr + src_j);
-      uint16x8_t r_value = vmovl_u8(v_src.val[0]);
-      uint16x8_t g_value = vmovl_u8(v_src.val[1]);
-      uint16x8_t b_value = vmovl_u8(v_src.val[2]);
-      uint8x8_t gray_value = RGBToGray(r_value, g_value, b_value, r2y_value, g2y_value, b2y_value);
-
-      vst1_u8(dst_ptr + dst_j, gray_value);
-      src_j += 32;
-      dst_j += 8;
-    }
-
-    for (; dst_j < w; src_j += 4, dst_j++) {
-      uint32_t val = src_ptr[src_j] * r_to_gray + src_ptr[src_j + 1] * g_to_gray + src_ptr[src_j + 2] * b_to_gray;
-      dst_ptr[dst_j] = U32TOU8CAST((val + GRAYSHIFT_DELTA) >> GRAYSHIFT);
-    }
-  }
-  return true;
-}
-#endif
-
 static bool ConvertRGBAToGRAY(const unsigned char *data, LDataType data_type, int w, int h, LiteMat &mat) {
   if (data_type == LDataType::UINT8) {
     mat.Init(w, h, 1, LDataType::UINT8);
@@ -592,9 +519,6 @@ static bool ConvertRGBAToGRAY(const unsigned char *data, LDataType data_type, in
     }
     unsigned char *ptr = mat;
     const unsigned char *data_ptr = data;
-#ifdef ENABLE_NEON
-    ConvertRGBAToGRAY_Neon(data_ptr, ptr, w, h);
-#else
     for (int y = 0; y < h; y++) {
       for (int x = 0; x < w; x++) {
         *ptr = (data_ptr[2] * B2GRAY + data_ptr[1] * G2GRAY + data_ptr[0] * R2GRAY + GRAYSHIFT_DELTA) >> GRAYSHIFT;
@@ -602,7 +526,6 @@ static bool ConvertRGBAToGRAY(const unsigned char *data, LDataType data_type, in
         data_ptr += 4;
       }
     }
-#endif
   } else {
     return false;
   }