| /****************************************************************************** |
| * |
| * Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore |
| * |
| * 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. |
| * |
| ******************************************************************************/ |
| /** |
| ******************************************************************************* |
| * @file |
| * ihevc_recon.c |
| * |
| * @brief |
| * Functions definitions reconstruction |
| * |
| * @author |
| * Ittiam |
| * |
| * @par List of Functions: |
| * - ihevc_recon_4x4_ttype1() |
| * - ihevc_recon_4x4() |
| * - ihevc_recon_8x8() |
| * - ihevc_recon_16x16() |
| * - ihevc_recon_32x32() |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| #include <stdio.h> |
| #include <string.h> |
| #include "ihevc_typedefs.h" |
| #include "ihevc_macros.h" |
| #include "ihevc_platform_macros.h" |
| #include "ihevc_defs.h" |
| #include "ihevc_trans_tables.h" |
| #include "ihevc_recon.h" |
| #include "ihevc_func_selector.h" |
| #include "ihevc_trans_macros.h" |
| |
| /* All the functions here are replicated from ihevc.c and modified to */ |
| /* include reconstruction */ |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * This function performs reconstruction for 4x4 input block |
| * |
| * @par Description: |
| * Performs reconstruction of 4x4 input block by adding adding prediction |
| * data to input and clipping it to 8 bit |
| * |
| * @param[in] pi2_src |
| * Input 4x4 coefficients |
| * |
| * @param[in] pu1_pred |
| * Prediction 4x4 block |
| * |
| * @param[out] pu1_dst |
| * Output 4x4 block |
| * |
| * @param[in] src_strd |
| * Input stride |
| * |
| * @param[in] pred_strd |
| * Prediction stride |
| * |
| * @param[in] dst_strd |
| * Output Stride |
| * |
| * @param[in] zero_cols |
| * Zero columns in pi2_tmp |
| * |
| * @returns Void |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| void ihevc_recon_4x4_ttype1(WORD16 *pi2_src, |
| UWORD8 *pu1_pred, |
| UWORD8 *pu1_dst, |
| WORD32 src_strd, |
| WORD32 pred_strd, |
| WORD32 dst_strd, |
| WORD32 zero_cols) |
| { |
| WORD32 i, j; |
| WORD32 trans_size; |
| |
| trans_size = TRANS_SIZE_4; |
| |
| /* Reconstruction */ |
| |
| for(i = 0; i < trans_size; i++) |
| { |
| /* Checking for Zero Cols */ |
| if((zero_cols & 1) == 1) |
| { |
| for(j = 0; j < trans_size; j++) |
| { |
| pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd]; |
| } |
| } |
| else |
| { |
| for(j = 0; j < trans_size; j++) |
| { |
| pu1_dst[j * dst_strd] = |
| CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]); |
| } |
| } |
| pi2_src++; |
| pu1_dst++; |
| pu1_pred++; |
| zero_cols = zero_cols >> 1; |
| } |
| } |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * This function performs reconstruction for 4x4 input block |
| * |
| * @par Description: |
| * Performs reconstruction of 4x4 input block by adding adding prediction |
| * data to input and clipping it to 8 bit |
| * |
| * @param[in] pi2_src |
| * Input 4x4 coefficients |
| * |
| * @param[in] pu1_pred |
| * Prediction 4x4 block |
| * |
| * @param[out] pu1_dst |
| * Output 4x4 block |
| * |
| * @param[in] src_strd |
| * Input stride |
| * |
| * @param[in] pred_strd |
| * Prediction stride |
| * |
| * @param[in] dst_strd |
| * Output Stride |
| * |
| * @param[in] shift |
| * Output shift |
| * |
| * @param[in] zero_cols |
| * Zero columns in pi2_tmp |
| * |
| * @returns Void |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| void ihevc_recon_4x4(WORD16 *pi2_src, |
| UWORD8 *pu1_pred, |
| UWORD8 *pu1_dst, |
| WORD32 src_strd, |
| WORD32 pred_strd, |
| WORD32 dst_strd, |
| WORD32 zero_cols) |
| { |
| WORD32 i, j; |
| WORD32 trans_size; |
| |
| trans_size = TRANS_SIZE_4; |
| |
| /* Reconstruction */ |
| |
| for(i = 0; i < trans_size; i++) |
| { |
| /* Checking for Zero Cols */ |
| if((zero_cols & 1) == 1) |
| { |
| for(j = 0; j < trans_size; j++) |
| { |
| pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd]; |
| } |
| } |
| else |
| { |
| for(j = 0; j < trans_size; j++) |
| { |
| pu1_dst[j * dst_strd] = |
| CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]); |
| } |
| } |
| pi2_src++; |
| pu1_dst++; |
| pu1_pred++; |
| zero_cols = zero_cols >> 1; |
| } |
| } |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * This function performs reconstruction for 8x8 input block |
| * |
| * @par Description: |
| * Performs reconstruction of 8x8 input block by adding adding prediction |
| * data to input and clipping it to 8 bit |
| * |
| * @param[in] pi2_src |
| * Input 8x8 coefficients |
| * |
| * @param[in] pu1_pred |
| * Prediction 8x8 block |
| * |
| * @param[out] pu1_dst |
| * Output 8x8 block |
| * |
| * @param[in] src_strd |
| * Input stride |
| * |
| * @param[in] pred_strd |
| * Prediction stride |
| * |
| * @param[in] dst_strd |
| * Output Stride |
| * |
| * @param[in] shift |
| * Output shift |
| * |
| * @param[in] zero_cols |
| * Zero columns in pi2_tmp |
| * |
| * @returns Void |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| void ihevc_recon_8x8(WORD16 *pi2_src, |
| UWORD8 *pu1_pred, |
| UWORD8 *pu1_dst, |
| WORD32 src_strd, |
| WORD32 pred_strd, |
| WORD32 dst_strd, |
| WORD32 zero_cols) |
| { |
| WORD32 i, j; |
| WORD32 trans_size; |
| |
| trans_size = TRANS_SIZE_8; |
| |
| /* Reconstruction */ |
| |
| for(i = 0; i < trans_size; i++) |
| { |
| /* Checking for Zero Cols */ |
| if((zero_cols & 1) == 1) |
| { |
| for(j = 0; j < trans_size; j++) |
| { |
| pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd]; |
| } |
| } |
| else |
| { |
| for(j = 0; j < trans_size; j++) |
| { |
| pu1_dst[j * dst_strd] = |
| CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]); |
| } |
| } |
| pi2_src++; |
| pu1_dst++; |
| pu1_pred++; |
| zero_cols = zero_cols >> 1; |
| } |
| } |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * This function performs reconstruction for 16x16 input block |
| * |
| * @par Description: |
| * Performs reconstruction of 16x16 input block by adding adding prediction |
| * data to input and clipping it to 8 bit |
| * |
| * @param[in] pi2_src |
| * Input 16x16 coefficients |
| * |
| * @param[in] pu1_pred |
| * Prediction 16x16 block |
| * |
| * @param[out] pu1_dst |
| * Output 16x16 block |
| * |
| * @param[in] src_strd |
| * Input stride |
| * |
| * @param[in] pred_strd |
| * Prediction stride |
| * |
| * @param[in] dst_strd |
| * Output Stride |
| * |
| * @param[in] shift |
| * Output shift |
| * |
| * @param[in] zero_cols |
| * Zero columns in pi2_tmp |
| * |
| * @returns Void |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| void ihevc_recon_16x16(WORD16 *pi2_src, |
| UWORD8 *pu1_pred, |
| UWORD8 *pu1_dst, |
| WORD32 src_strd, |
| WORD32 pred_strd, |
| WORD32 dst_strd, |
| WORD32 zero_cols) |
| { |
| WORD32 i, j; |
| WORD32 trans_size; |
| |
| trans_size = TRANS_SIZE_16; |
| |
| /* Reconstruction */ |
| |
| for(i = 0; i < trans_size; i++) |
| { |
| /* Checking for Zero Cols */ |
| if((zero_cols & 1) == 1) |
| { |
| for(j = 0; j < trans_size; j++) |
| { |
| pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd]; |
| } |
| } |
| else |
| { |
| for(j = 0; j < trans_size; j++) |
| { |
| pu1_dst[j * dst_strd] = |
| CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]); |
| } |
| } |
| pi2_src++; |
| pu1_dst++; |
| pu1_pred++; |
| zero_cols = zero_cols >> 1; |
| } |
| } |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * This function performs reconstruction for 32x32 input block |
| * |
| * @par Description: |
| * Performs reconstruction of 32x32 input block by adding adding prediction |
| * data to input and clipping it to 8 bit |
| * |
| * @param[in] pi2_src |
| * Input 32x32 coefficients |
| * |
| * @param[in] pu1_pred |
| * Prediction 32x32 block |
| * |
| * @param[out] pu1_dst |
| * Output 32x32 block |
| * |
| * @param[in] src_strd |
| * Input stride |
| * |
| * @param[in] pred_strd |
| * Prediction stride |
| * |
| * @param[in] dst_strd |
| * Output Stride |
| * |
| * @param[in] shift |
| * Output shift |
| * |
| * @param[in] zero_cols |
| * Zero columns in pi2_tmp |
| * |
| * @returns Void |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| void ihevc_recon_32x32(WORD16 *pi2_src, |
| UWORD8 *pu1_pred, |
| UWORD8 *pu1_dst, |
| WORD32 src_strd, |
| WORD32 pred_strd, |
| WORD32 dst_strd, |
| WORD32 zero_cols) |
| { |
| WORD32 i, j; |
| WORD32 trans_size; |
| |
| trans_size = TRANS_SIZE_32; |
| |
| /* Reconstruction */ |
| |
| for(i = 0; i < trans_size; i++) |
| { |
| /* Checking for Zero Cols */ |
| if((zero_cols & 1) == 1) |
| { |
| for(j = 0; j < trans_size; j++) |
| { |
| pu1_dst[j * dst_strd] = pu1_pred[j * pred_strd]; |
| } |
| } |
| else |
| { |
| for(j = 0; j < trans_size; j++) |
| { |
| pu1_dst[j * dst_strd] = |
| CLIP_U8(pi2_src[j * src_strd] + pu1_pred[j * pred_strd]); |
| } |
| } |
| pi2_src++; |
| pu1_dst++; |
| pu1_pred++; |
| zero_cols = zero_cols >> 1; |
| } |
| } |
| |
