diff options
| author | Hendrik Leppkes <h.leppkes@gmail.com> | 2012-07-11 00:03:28 +0400 |
|---|---|---|
| committer | Hendrik Leppkes <h.leppkes@gmail.com> | 2012-07-11 00:03:28 +0400 |
| commit | fc7ae01c070fd499ce44c3f35e33fdb57cb5074f (patch) | |
| tree | 53957c673195fc1eeb44a4843454f14f897b4a25 /decoder/LAVVideo/pixconv | |
| parent | e88cb68608e5c97d58d0598abf3397215639db44 (diff) | |
pixconv: don't use SSE4 instructions for YCgCo conversion
Diffstat (limited to 'decoder/LAVVideo/pixconv')
| -rw-r--r-- | decoder/LAVVideo/pixconv/yuv2rgb.cpp | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/decoder/LAVVideo/pixconv/yuv2rgb.cpp b/decoder/LAVVideo/pixconv/yuv2rgb.cpp index 62c1468e..4c62bd84 100644 --- a/decoder/LAVVideo/pixconv/yuv2rgb.cpp +++ b/decoder/LAVVideo/pixconv/yuv2rgb.cpp @@ -227,10 +227,6 @@ static int yuv2rgb_convert_pixels(const uint8_t* &srcY, const uint8_t* &srcU, co xmm0 = _mm_unpacklo_epi64(xmm0, xmm5); /* YYYYYYYY */ - xmm2 = coeffs->CbCr_center; /* move CbCr/CgCo to proper range */ - xmm1 = _mm_subs_epi16(xmm1, xmm2); - xmm3 = _mm_subs_epi16(xmm3, xmm2); - // After this step, xmm1 & xmm3 contain 4 UV pairs, each in a 16-bit value, filling 12-bit. if (!ycgco) { // YCbCr conversion @@ -244,6 +240,10 @@ static int yuv2rgb_convert_pixels(const uint8_t* &srcY, const uint8_t* &srcU, co xmm0 = _mm_mulhi_epi16(xmm0, coeffs->cy); /* Y*cy (result is 28 bits, with 12 high-bits packed into the result) */ xmm0 = _mm_add_epi16(xmm0, coeffs->rgb_add); /* Y*cy + 16 (in case of range compression) */ + xmm2 = coeffs->CbCr_center; /* move CbCr to proper range */ + xmm1 = _mm_subs_epi16(xmm1, xmm2); + xmm3 = _mm_subs_epi16(xmm3, xmm2); + xmm6 = xmm1; xmm4 = xmm3; xmm6 = _mm_madd_epi16(xmm6, coeffs->cR_Cr); /* Result is 25 bits (12 from chroma, 13 from coeff) */ @@ -290,11 +290,15 @@ static int yuv2rgb_convert_pixels(const uint8_t* &srcY, const uint8_t* &srcU, co xmm1 = _mm_and_si128(xmm1, xmm7); /* null out the high-order bytes to get the Cg values */ xmm2 = _mm_and_si128(xmm2, xmm7); - xmm3 = _mm_srli_epi32(xmm3, 16); /* right shift the V values */ + xmm3 = _mm_srli_epi32(xmm3, 16); /* right shift the Co values */ xmm4 = _mm_srli_epi32(xmm4, 16); - xmm1 = _mm_packus_epi32(xmm1, xmm2); /* Pack Cg into xmm1 */ - xmm3 = _mm_packus_epi32(xmm3, xmm4); /* Pack Co into xmm3 */ + xmm1 = _mm_packs_epi32(xmm1, xmm2); /* Pack Cg into xmm1 */ + xmm3 = _mm_packs_epi32(xmm3, xmm4); /* Pack Co into xmm3 */ + + xmm2 = coeffs->CbCr_center; /* move CgCo to proper range */ + xmm1 = _mm_subs_epi16(xmm1, xmm2); + xmm3 = _mm_subs_epi16(xmm3, xmm2); xmm2 = xmm0; xmm2 = _mm_subs_epi16(xmm2, xmm1); /* tmp = Y - Cg */ |