};
template <>
+struct Cvt_SIMD<schar, ushort>
+{
+ int operator() (const schar * src, ushort * dst, int width) const
+ {
+ int x = 0;
+
+ for ( ; x <= width - 8; x += 8)
+ {
+ int16x8_t v_src = vmovl_s8(vld1_s8(src + x));
+ vst1q_u16(dst + x, vcombine_u16(vqmovun_s32(vmovl_s16(vget_low_s16(v_src))),
+ vqmovun_s32(vmovl_s16(vget_high_s16(v_src)))));
+ }
+
+ return x;
+ }
+};
+
+
+template <>
struct Cvt_SIMD<schar, int>
{
int operator() (const schar * src, int * dst, int width) const
};
template <>
+struct Cvt_SIMD<ushort, schar>
+{
+ int operator() (const ushort * src, schar * dst, int width) const
+ {
+ int x = 0;
+
+ for ( ; x <= width - 16; x += 16)
+ {
+ uint16x8_t v_src1 = vld1q_u16(src + x), v_src2 = vld1q_u16(src + x + 8);
+ int32x4_t v_dst10 = vreinterpretq_s32_u32(vmovl_u16(vget_low_u16(v_src1)));
+ int32x4_t v_dst11 = vreinterpretq_s32_u32(vmovl_u16(vget_high_u16(v_src1)));
+ int32x4_t v_dst20 = vreinterpretq_s32_u32(vmovl_u16(vget_low_u16(v_src2)));
+ int32x4_t v_dst21 = vreinterpretq_s32_u32(vmovl_u16(vget_high_u16(v_src2)));
+
+ vst1q_s8(dst + x, vcombine_s8(vqmovn_s16(vcombine_s16(vqmovn_s32(v_dst10), vqmovn_s32(v_dst11))),
+ vqmovn_s16(vcombine_s16(vqmovn_s32(v_dst20), vqmovn_s32(v_dst21)))));
+ }
+
+ return x;
+ }
+};
+
+template <>
+struct Cvt_SIMD<ushort, short>
+{
+ int operator() (const ushort * src, short * dst, int width) const
+ {
+ int x = 0;
+
+ for ( ; x <= width - 8; x += 8)
+ {
+ uint16x8_t v_src = vld1q_u16(src + x);
+ int32x4_t v_dst0 = vreinterpretq_s32_u32(vmovl_u16(vget_low_u16(v_src)));
+ int32x4_t v_dst1 = vreinterpretq_s32_u32(vmovl_u16(vget_high_u16(v_src)));
+
+ vst1q_s16(dst + x, vcombine_s16(vqmovn_s32(v_dst0), vqmovn_s32(v_dst1)));
+ }
+
+ return x;
+ }
+};
+
+template <>
struct Cvt_SIMD<ushort, int>
{
int operator() (const ushort * src, int * dst, int width) const