mirror of
https://github.com/cemu-project/Cemu.git
synced 2024-12-04 23:14:24 +01:00
210 lines
7.9 KiB
C
210 lines
7.9 KiB
C
/******************************************************************************
|
|
*
|
|
* 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 <immintrin.h>
|
|
|
|
/*
|
|
********************************************************************************
|
|
*
|
|
* @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((u4_qp_div_6 < 6) ? (1 << (5 - u4_qp_div_6)) : 0);
|
|
__m128i mult_val = _mm_set1_epi32(pu2_iscal_mat[0] * pu2_weigh_mat[0]);
|
|
|
|
__m128i mask = _mm_set1_epi32(val);
|
|
UNUSED (pi4_tmp);
|
|
|
|
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);
|
|
}
|