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the rest modes of cv::Mat::convertTo

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This commit is contained in:
Ilya Lavrenov
2014-10-10 11:05:19 +00:00
parent 4babecf3b0
commit 5f23d99918
3 changed files with 66 additions and 0 deletions
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62
modules/core/src/convert.cpp
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@@ -2447,6 +2447,25 @@ struct Cvt_SIMD<schar, short>
}
};
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>
{
@@ -2502,6 +2521,49 @@ struct Cvt_SIMD<ushort, uchar>
}
};
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>
{