diff options
| -rw-r--r-- | vpx_dsp/x86/transpose_sse2.h | 81 |
1 files changed, 80 insertions, 1 deletions
diff --git a/vpx_dsp/x86/transpose_sse2.h b/vpx_dsp/x86/transpose_sse2.h index 067103a58..8a0119ca7 100644 --- a/vpx_dsp/x86/transpose_sse2.h +++ b/vpx_dsp/x86/transpose_sse2.h @@ -11,7 +11,86 @@ #ifndef VPX_DSP_X86_TRANSPOSE_SSE2_H_ #define VPX_DSP_X86_TRANSPOSE_SSE2_H_ -#include "./vpx_dsp_rtcd.h" +#include <emmintrin.h> // SSE2 + +#include "./vpx_config.h" + +static INLINE __m128i transpose_8bit_4x4(const __m128i *const in) { + // Unpack 16 bit elements. Goes from: + // in[0]: 00 01 02 03 + // in[1]: 10 11 12 13 + // in[2]: 20 21 22 23 + // in[3]: 30 31 32 33 + // to: + // a0: 00 10 01 11 02 12 03 13 + // a1: 20 30 21 31 22 32 23 33 + const __m128i a0 = _mm_unpacklo_epi8(in[0], in[1]); + const __m128i a1 = _mm_unpacklo_epi8(in[2], in[3]); + + // Unpack 32 bit elements resulting in: + // 00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33 + return _mm_unpacklo_epi16(a0, a1); +} + +static INLINE void transpose_8bit_8x8(const __m128i *const in, + __m128i *const out) { + // Unpack 8 bit elements. Goes from: + // in[0]: 00 01 02 03 04 05 06 07 + // in[1]: 10 11 12 13 14 15 16 17 + // in[2]: 20 21 22 23 24 25 26 27 + // in[3]: 30 31 32 33 34 35 36 37 + // in[4]: 40 41 42 43 44 45 46 47 + // in[5]: 50 51 52 53 54 55 56 57 + // in[6]: 60 61 62 63 64 65 66 67 + // in[7]: 70 71 72 73 74 75 76 77 + // to: + // a0: 00 10 01 11 02 12 03 13 04 14 05 15 06 16 07 17 + // a1: 20 30 21 31 22 32 23 33 24 34 25 35 26 36 27 37 + // a2: 40 50 41 51 42 52 43 53 44 54 45 55 46 56 47 57 + // a3: 60 70 61 71 62 72 63 73 64 74 65 75 66 76 67 77 + const __m128i a0 = _mm_unpacklo_epi8(in[0], in[1]); + const __m128i a1 = _mm_unpacklo_epi8(in[2], in[3]); + const __m128i a2 = _mm_unpacklo_epi8(in[4], in[5]); + const __m128i a3 = _mm_unpacklo_epi8(in[6], in[7]); + + // Unpack 16 bit elements resulting in: + // b0: 00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33 + // b1: 40 50 60 70 41 51 61 71 42 52 62 72 43 53 63 73 + // b2: 04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37 + // b3: 44 54 64 74 45 55 65 75 46 56 66 76 47 57 67 77 + const __m128i b0 = _mm_unpacklo_epi16(a0, a1); + const __m128i b1 = _mm_unpackhi_epi16(a0, a1); + const __m128i b2 = _mm_unpacklo_epi16(a2, a3); + const __m128i b3 = _mm_unpackhi_epi16(a2, a3); + + // Unpack 32 bit elements resulting in: + // c0: 00 10 20 30 40 50 60 70 01 11 21 31 41 51 61 71 + // c1: 02 12 22 32 42 52 62 72 03 13 23 33 43 53 63 73 + // c2: 04 14 24 34 44 54 64 74 05 15 25 35 45 55 65 75 + // c3: 06 16 26 36 46 56 66 76 07 17 27 37 47 57 67 77 + const __m128i c0 = _mm_unpacklo_epi32(b0, b2); + const __m128i c1 = _mm_unpackhi_epi32(b0, b2); + const __m128i c2 = _mm_unpacklo_epi32(b1, b3); + const __m128i c3 = _mm_unpackhi_epi32(b1, b3); + + // Unpack 64 bit elements resulting in: + // out[0]: 00 10 20 30 40 50 60 70 + // out[1]: 01 11 21 31 41 51 61 71 + // out[2]: 02 12 22 32 42 52 62 72 + // out[3]: 03 13 23 33 43 53 63 73 + // out[4]: 04 14 24 34 44 54 64 74 + // out[5]: 05 15 25 35 45 55 65 75 + // out[6]: 06 16 26 36 46 56 66 76 + // out[7]: 07 17 27 37 47 57 67 77 + out[0] = _mm_unpacklo_epi64(c0, c0); + out[1] = _mm_unpackhi_epi64(c0, c0); + out[2] = _mm_unpacklo_epi64(c1, c1); + out[3] = _mm_unpackhi_epi64(c1, c1); + out[4] = _mm_unpacklo_epi64(c2, c2); + out[5] = _mm_unpackhi_epi64(c2, c2); + out[6] = _mm_unpacklo_epi64(c3, c3); + out[7] = _mm_unpackhi_epi64(c3, c3); +} static INLINE void transpose_16bit_4x4(const __m128i *const in, __m128i *const out) { |