From 8d3d303c7942ced6a987a52db8977d768dc3605f Mon Sep 17 00:00:00 2001 From: Hamsalekha S Date: Fri, 13 Mar 2015 21:24:58 +0530 Subject: Initial version Change-Id: I7efe9a589cd24edf86e8d086b40c27cbbf8b4017 --- common/x86/ih264_ihadamard_scaling_ssse3.c | 200 +++++++++++++++++++++++++++++ 1 file changed, 200 insertions(+) create mode 100755 common/x86/ih264_ihadamard_scaling_ssse3.c (limited to 'common/x86/ih264_ihadamard_scaling_ssse3.c') diff --git a/common/x86/ih264_ihadamard_scaling_ssse3.c b/common/x86/ih264_ihadamard_scaling_ssse3.c new file mode 100755 index 0000000..232d9fa --- /dev/null +++ b/common/x86/ih264_ihadamard_scaling_ssse3.c @@ -0,0 +1,200 @@ +/****************************************************************************** + * + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + ***************************************************************************** + * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore +*/ +/** + ******************************************************************************* + * @file + * ih264_ihadamard_scaling_ssse3.c + * + * @brief + * Contains definition of functions for h264 inverse hadamard 4x4 transform and scaling + * + * @author + * Mohit + * + * @par List of Functions: + * - ih264_ihadamard_scaling_4x4_ssse3() + * + * @remarks + * + ******************************************************************************* + */ +/*****************************************************************************/ +/* File Includes */ +/*****************************************************************************/ + +/* User include files */ +#include "ih264_typedefs.h" +#include "ih264_defs.h" +#include "ih264_trans_macros.h" +#include "ih264_macros.h" +#include "ih264_trans_data.h" +#include "ih264_size_defs.h" +#include "ih264_structs.h" +#include "ih264_trans_quant_itrans_iquant.h" +#include + +/* + ******************************************************************************** + * + * @brief This function performs a 4x4 inverse hadamard transform on the 4x4 DC coefficients + * of a 16x16 intra prediction macroblock, and then performs scaling. + * prediction buffer + * + * @par Description: + * The DC coefficients pass through a 2-stage inverse hadamard transform. + * This inverse transformed content is scaled to based on Qp value. + * + * @param[in] pi2_src + * input 4x4 block of DC coefficients + * + * @param[out] pi2_out + * output 4x4 block + * + * @param[in] pu2_iscal_mat + * pointer to scaling list + * + * @param[in] pu2_weigh_mat + * pointer to weight matrix + * + * @param[in] u4_qp_div_6 + * Floor (qp/6) + * + * @param[in] pi4_tmp + * temporary buffer of size 1*16 + * + * @returns none + * + * @remarks none + * + ******************************************************************************* + */ +void ih264_ihadamard_scaling_4x4_ssse3(WORD16* pi2_src, WORD16* pi2_out, + const UWORD16 *pu2_iscal_mat, const UWORD16 *pu2_weigh_mat, + UWORD32 u4_qp_div_6, WORD32* pi4_tmp) { + int val = 0xFFFF; + __m128i src_r0_r1, src_r2_r3, sign_reg, zero_8x16b = _mm_setzero_si128(); + __m128i src_r0, src_r1, src_r2, src_r3; + __m128i temp0, temp1, temp2, temp3; + __m128i add_rshift = _mm_set1_epi32((1 << (5 - u4_qp_div_6))); + __m128i mult_val = _mm_set1_epi32(pu2_iscal_mat[0] * pu2_weigh_mat[0]); + + __m128i mask = _mm_set1_epi32(val); + mult_val = _mm_and_si128(mult_val, mask); + + src_r0_r1 = _mm_loadu_si128((__m128i *) (pi2_src)); //a00 a01 a02 a03 a10 a11 a12 a13 -- the source matrix 0th,1st row + src_r2_r3 = _mm_loadu_si128((__m128i *) (pi2_src + 8)); //a20 a21 a22 a23 a30 a31 a32 a33 -- the source matrix 2nd,3rd row + sign_reg = _mm_cmpgt_epi16(zero_8x16b, src_r0_r1); + src_r0 = _mm_unpacklo_epi16(src_r0_r1, sign_reg); + src_r1 = _mm_unpackhi_epi16(src_r0_r1, sign_reg); + sign_reg = _mm_cmpgt_epi16(zero_8x16b, src_r2_r3); + src_r2 = _mm_unpacklo_epi16(src_r2_r3, sign_reg); + src_r3 = _mm_unpackhi_epi16(src_r2_r3, sign_reg); + + /* Perform Inverse transform */ + /*-------------------------------------------------------------*/ + /* IDCT [ Horizontal transformation ] */ + /*-------------------------------------------------------------*/ + // Matrix transpose + /* + * a0 a1 a2 a3 + * b0 b1 b2 b3 + * c0 c1 c2 c3 + * d0 d1 d2 d3 + */ + temp0 = _mm_unpacklo_epi32(src_r0, src_r1); //a0 b0 a1 b1 + temp2 = _mm_unpacklo_epi32(src_r2, src_r3); //c0 d0 c1 d1 + temp1 = _mm_unpackhi_epi32(src_r0, src_r1); //a2 b2 a3 b3 + temp3 = _mm_unpackhi_epi32(src_r2, src_r3); //c2 d2 c3 d3 + src_r0 = _mm_unpacklo_epi64(temp0, temp2); //a0 b0 c0 d0 + src_r1 = _mm_unpackhi_epi64(temp0, temp2); //a1 b1 c1 d1 + src_r2 = _mm_unpacklo_epi64(temp1, temp3); //a2 b2 c2 d2 + src_r3 = _mm_unpackhi_epi64(temp1, temp3); //a3 b3 c3 d3 + + temp0 = _mm_add_epi32(src_r0, src_r3); + temp1 = _mm_add_epi32(src_r1, src_r2); + temp2 = _mm_sub_epi32(src_r1, src_r2); + temp3 = _mm_sub_epi32(src_r0, src_r3); + + src_r0 = _mm_add_epi32(temp0, temp1); + src_r1 = _mm_add_epi32(temp2, temp3); + src_r2 = _mm_sub_epi32(temp0, temp1); + src_r3 = _mm_sub_epi32(temp3, temp2); + + /*-------------------------------------------------------------*/ + /* IDCT [ Vertical transformation ] */ + /*-------------------------------------------------------------*/ + // Matrix transpose + /* + * a0 b0 c0 d0 + * a1 b1 c1 d1 + * a2 b2 c2 d2 + * a3 b3 c3 d3 + */ + temp0 = _mm_unpacklo_epi32(src_r0, src_r1); //a0 a1 b0 b1 + temp2 = _mm_unpacklo_epi32(src_r2, src_r3); //a2 a3 b2 b3 + temp1 = _mm_unpackhi_epi32(src_r0, src_r1); //c0 c1 d0 d1 + temp3 = _mm_unpackhi_epi32(src_r2, src_r3); //c2 c3 d2 d3 + src_r0 = _mm_unpacklo_epi64(temp0, temp2); //a0 a1 a2 a3 + src_r1 = _mm_unpackhi_epi64(temp0, temp2); //b0 b1 b2 b3 + src_r2 = _mm_unpacklo_epi64(temp1, temp3); //c0 c1 c2 c3 + src_r3 = _mm_unpackhi_epi64(temp1, temp3); //d0 d1 d2 d3 + + temp0 = _mm_add_epi32(src_r0, src_r3); + temp1 = _mm_add_epi32(src_r1, src_r2); + temp2 = _mm_sub_epi32(src_r1, src_r2); + temp3 = _mm_sub_epi32(src_r0, src_r3); + + src_r0 = _mm_add_epi32(temp0, temp1); + src_r1 = _mm_add_epi32(temp2, temp3); + src_r2 = _mm_sub_epi32(temp0, temp1); + src_r3 = _mm_sub_epi32(temp3, temp2); + + src_r0 = _mm_and_si128(src_r0, mask); + src_r1 = _mm_and_si128(src_r1, mask); + src_r2 = _mm_and_si128(src_r2, mask); + src_r3 = _mm_and_si128(src_r3, mask); + + src_r0 = _mm_madd_epi16(src_r0, mult_val); + src_r1 = _mm_madd_epi16(src_r1, mult_val); + src_r2 = _mm_madd_epi16(src_r2, mult_val); + src_r3 = _mm_madd_epi16(src_r3, mult_val); + + //Scaling + if (u4_qp_div_6 >= 6) { + src_r0 = _mm_slli_epi32(src_r0, u4_qp_div_6 - 6); + src_r1 = _mm_slli_epi32(src_r1, u4_qp_div_6 - 6); + src_r2 = _mm_slli_epi32(src_r2, u4_qp_div_6 - 6); + src_r3 = _mm_slli_epi32(src_r3, u4_qp_div_6 - 6); + } else { + temp0 = _mm_add_epi32(src_r0, add_rshift); + temp1 = _mm_add_epi32(src_r1, add_rshift); + temp2 = _mm_add_epi32(src_r2, add_rshift); + temp3 = _mm_add_epi32(src_r3, add_rshift); + src_r0 = _mm_srai_epi32(temp0, 6 - u4_qp_div_6); + src_r1 = _mm_srai_epi32(temp1, 6 - u4_qp_div_6); + src_r2 = _mm_srai_epi32(temp2, 6 - u4_qp_div_6); + src_r3 = _mm_srai_epi32(temp3, 6 - u4_qp_div_6); + } + src_r0_r1 = _mm_packs_epi32(src_r0, src_r1); + src_r2_r3 = _mm_packs_epi32(src_r2, src_r3); + + _mm_storeu_si128((__m128i *) (&pi2_out[0]), src_r0_r1); + _mm_storeu_si128((__m128i *) (&pi2_out[8]), src_r2_r3); +} -- cgit v1.2.3