/Show/avc/deblock.cpp
C++ | 1667 lines | 1222 code | 272 blank | 173 comment | 354 complexity | fb2b58931080867affc66a4e435964ff MD5 | raw file
Possible License(s): BSD-3-Clause
- /* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * 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.
- * -------------------------------------------------------------------
- */
- #include <string.h>
- #include "avclib_common.h"
- #define MAX_QP 51
- #define MB_BLOCK_SIZE 16
- // NOTE: these 3 tables are for funtion GetStrength() only
- const static int ININT_STRENGTH[4] = {0x04040404, 0x03030303, 0x03030303, 0x03030303};
- // NOTE: these 3 tables are for funtion EdgeLoop() only
- // NOTE: to change the tables below for instance when the QP doubling is changed from 6 to 8 values
- const static int ALPHA_TABLE[52] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 5, 6, 7, 8, 9, 10, 12, 13, 15, 17, 20, 22, 25, 28, 32, 36, 40, 45, 50, 56, 63, 71, 80, 90, 101, 113, 127, 144, 162, 182, 203, 226, 255, 255} ;
- const static int BETA_TABLE[52] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18} ;
- const static int CLIP_TAB[52][5] =
- {
- { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0},
- { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0},
- { 0, 0, 0, 0, 0}, { 0, 0, 0, 1, 1}, { 0, 0, 0, 1, 1}, { 0, 0, 0, 1, 1}, { 0, 0, 0, 1, 1}, { 0, 0, 1, 1, 1}, { 0, 0, 1, 1, 1}, { 0, 1, 1, 1, 1},
- { 0, 1, 1, 1, 1}, { 0, 1, 1, 1, 1}, { 0, 1, 1, 1, 1}, { 0, 1, 1, 2, 2}, { 0, 1, 1, 2, 2}, { 0, 1, 1, 2, 2}, { 0, 1, 1, 2, 2}, { 0, 1, 2, 3, 3},
- { 0, 1, 2, 3, 3}, { 0, 2, 2, 3, 3}, { 0, 2, 2, 4, 4}, { 0, 2, 3, 4, 4}, { 0, 2, 3, 4, 4}, { 0, 3, 3, 5, 5}, { 0, 3, 4, 6, 6}, { 0, 3, 4, 6, 6},
- { 0, 4, 5, 7, 7}, { 0, 4, 5, 8, 8}, { 0, 4, 6, 9, 9}, { 0, 5, 7, 10, 10}, { 0, 6, 8, 11, 11}, { 0, 6, 8, 13, 13}, { 0, 7, 10, 14, 14}, { 0, 8, 11, 16, 16},
- { 0, 9, 12, 18, 18}, { 0, 10, 13, 20, 20}, { 0, 11, 15, 23, 23}, { 0, 13, 17, 25, 25}
- };
- // NOTE: this table is only QP clipping, index = QP + video->FilterOffsetA/B, clipped to [0, 51]
- // video->FilterOffsetA/B is in {-12, 12]
- const static int QP_CLIP_TAB[76] =
- {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // [-12, 0]
- 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
- 13, 14, 15, 16, 17, 18, 19, 20, 21,
- 22, 23, 24, 25, 26, 27, 28, 29, 30,
- 31, 32, 33, 34, 35, 36, 37, 38, 39,
- 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, // [1, 51]
- 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51 // [52,63]
- };
- static void DeblockMb(AVCCommonObj *video, int mb_x, int mb_y, uint8 *SrcY, uint8 *SrcU, uint8 *SrcV);
- //static void GetStrength(AVCCommonObj *video, uint8 *Strength, AVCMacroblock* MbP, AVCMacroblock* MbQ, int dir, int edge);
- static void GetStrength_Edge0(uint8 *Strength, AVCMacroblock* MbP, AVCMacroblock* MbQ, int dir);
- static void GetStrength_VerticalEdges(uint8 *Strength, AVCMacroblock* MbQ);
- static void GetStrength_HorizontalEdges(uint8 Strength[12], AVCMacroblock* MbQ);
- static void EdgeLoop_Luma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch);
- static void EdgeLoop_Luma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch);
- static void EdgeLoop_Chroma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch);
- static void EdgeLoop_Chroma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch);
- /*
- *****************************************************************************************
- * \brief Filter all macroblocks in order of increasing macroblock address.
- *****************************************************************************************
- */
- OSCL_EXPORT_REF AVCStatus DeblockPicture(AVCCommonObj *video)
- {
- uint i, j;
- int pitch = video->currPic->pitch, pitch_c, width;
- uint8 *SrcY, *SrcU, *SrcV;
- SrcY = video->currPic->Sl; // pointers to source
- SrcU = video->currPic->Scb;
- SrcV = video->currPic->Scr;
- pitch_c = pitch >> 1;
- width = video->currPic->width;
- for (i = 0; i < video->PicHeightInMbs; i++)
- {
- for (j = 0; j < video->PicWidthInMbs; j++)
- {
- DeblockMb(video, j, i, SrcY, SrcU, SrcV);
- // update SrcY, SrcU, SrcV
- SrcY += MB_BLOCK_SIZE;
- SrcU += (MB_BLOCK_SIZE >> 1);
- SrcV += (MB_BLOCK_SIZE >> 1);
- }
- SrcY += ((pitch << 4) - width);
- SrcU += ((pitch_c << 3) - (width >> 1));
- SrcV += ((pitch_c << 3) - (width >> 1));
- }
- return AVC_SUCCESS;
- }
- #ifdef MB_BASED_DEBLOCK
- /*
- *****************************************************************************************
- * \brief Filter one macroblocks in a fast macroblock memory and copy it to frame
- *****************************************************************************************
- */
- void MBInLoopDeblock(AVCCommonObj *video)
- {
- AVCPictureData *currPic = video->currPic;
- #ifdef USE_PRED_BLOCK
- uint8 *predCb, *predCr, *pred_block;
- int i, j, dst_width, dst_height, dst_widthc, dst_heightc;
- #endif
- int pitch = currPic->pitch;
- int x_pos = video->mb_x;
- int y_pos = video->mb_y;
- uint8 *curL, *curCb, *curCr;
- int offset;
- offset = (y_pos << 4) * pitch;
- curL = currPic->Sl + offset + (x_pos << 4);
- offset >>= 2;
- offset += (x_pos << 3);
- curCb = currPic->Scb + offset;
- curCr = currPic->Scr + offset;
- #ifdef USE_PRED_BLOCK
- pred_block = video->pred;
- /* 1. copy neighboring pixels from frame to the video->pred_block */
- if (y_pos) /* not the 0th row */
- {
- /* copy to the top 4 lines of the macroblock */
- curL -= (pitch << 2); /* go back 4 lines */
- memcpy(pred_block + 4, curL, 16);
- curL += pitch;
- memcpy(pred_block + 24, curL, 16);
- curL += pitch;
- memcpy(pred_block + 44, curL, 16);
- curL += pitch;
- memcpy(pred_block + 64, curL, 16);
- curL += pitch;
- curCb -= (pitch << 1); /* go back 4 lines chroma */
- curCr -= (pitch << 1);
- pred_block += 400;
- memcpy(pred_block + 4, curCb, 8);
- curCb += (pitch >> 1);
- memcpy(pred_block + 16, curCb, 8);
- curCb += (pitch >> 1);
- memcpy(pred_block + 28, curCb, 8);
- curCb += (pitch >> 1);
- memcpy(pred_block + 40, curCb, 8);
- curCb += (pitch >> 1);
- pred_block += 144;
- memcpy(pred_block + 4, curCr, 8);
- curCr += (pitch >> 1);
- memcpy(pred_block + 16, curCr, 8);
- curCr += (pitch >> 1);
- memcpy(pred_block + 28, curCr, 8);
- curCr += (pitch >> 1);
- memcpy(pred_block + 40, curCr, 8);
- curCr += (pitch >> 1);
- pred_block = video->pred;
- }
- /* 2. perform deblocking. */
- DeblockMb(video, x_pos, y_pos, pred_block + 84, pred_block + 452, pred_block + 596);
- /* 3. copy it back to the frame and update pred_block */
- predCb = pred_block + 400;
- predCr = predCb + 144;
- /* find the range of the block inside pred_block to be copied back */
- if (y_pos) /* the first row */
- {
- curL -= (pitch << 2);
- curCb -= (pitch << 1);
- curCr -= (pitch << 1);
- dst_height = 20;
- dst_heightc = 12;
- }
- else
- {
- pred_block += 80;
- predCb += 48;
- predCr += 48;
- dst_height = 16;
- dst_heightc = 8;
- }
- if (x_pos) /* find the width */
- {
- curL -= 4;
- curCb -= 4;
- curCr -= 4;
- if (x_pos == (int)(video->PicWidthInMbs - 1))
- {
- dst_width = 20;
- dst_widthc = 12;
- }
- else
- {
- dst_width = 16;
- dst_widthc = 8;
- }
- }
- else
- {
- pred_block += 4;
- predCb += 4;
- predCr += 4;
- dst_width = 12;
- dst_widthc = 4;
- }
- /* perform copy */
- for (j = 0; j < dst_height; j++)
- {
- memcpy(curL, pred_block, dst_width);
- curL += pitch;
- pred_block += 20;
- }
- for (j = 0; j < dst_heightc; j++)
- {
- memcpy(curCb, predCb, dst_widthc);
- memcpy(curCr, predCr, dst_widthc);
- curCb += (pitch >> 1);
- curCr += (pitch >> 1);
- predCb += 12;
- predCr += 12;
- }
- if (x_pos != (int)(video->PicWidthInMbs - 1)) /* now copy from the right-most 4 columns to the left-most 4 columns */
- {
- pred_block = video->pred;
- for (i = 0; i < 20; i += 4)
- {
- *((uint32*)pred_block) = *((uint32*)(pred_block + 16));
- pred_block += 20;
- *((uint32*)pred_block) = *((uint32*)(pred_block + 16));
- pred_block += 20;
- *((uint32*)pred_block) = *((uint32*)(pred_block + 16));
- pred_block += 20;
- *((uint32*)pred_block) = *((uint32*)(pred_block + 16));
- pred_block += 20;
- }
- for (i = 0; i < 24; i += 4)
- {
- *((uint32*)pred_block) = *((uint32*)(pred_block + 8));
- pred_block += 12;
- *((uint32*)pred_block) = *((uint32*)(pred_block + 8));
- pred_block += 12;
- *((uint32*)pred_block) = *((uint32*)(pred_block + 8));
- pred_block += 12;
- *((uint32*)pred_block) = *((uint32*)(pred_block + 8));
- pred_block += 12;
- }
- }
- #else
- DeblockMb(video, x_pos, y_pos, curL, curCb, curCr);
- #endif
- return ;
- }
- #endif
- /*
- *****************************************************************************************
- * \brief Deblocking filter for one macroblock.
- *****************************************************************************************
- */
- void DeblockMb(AVCCommonObj *video, int mb_x, int mb_y, uint8 *SrcY, uint8 *SrcU, uint8 *SrcV)
- {
- AVCMacroblock *MbP, *MbQ;
- int edge, QP, QPC;
- int filterLeftMbEdgeFlag = (mb_x != 0);
- int filterTopMbEdgeFlag = (mb_y != 0);
- int pitch = video->currPic->pitch;
- int indexA, indexB;
- uintptr_t tmp;
- int Alpha, Beta, Alpha_c, Beta_c;
- int mbNum = mb_y * video->PicWidthInMbs + mb_x;
- int *clipTable, *clipTable_c, *qp_clip_tab;
- uint8 Strength[16];
- void* str;
- MbQ = &(video->mblock[mbNum]); // current Mb
- // If filter is disabled, return
- if (video->sliceHdr->disable_deblocking_filter_idc == 1) return;
- if (video->sliceHdr->disable_deblocking_filter_idc == 2)
- {
- // don't filter at slice boundaries
- filterLeftMbEdgeFlag = mb_is_available(video->mblock, video->PicSizeInMbs, mbNum - 1, mbNum);
- filterTopMbEdgeFlag = mb_is_available(video->mblock, video->PicSizeInMbs, mbNum - video->PicWidthInMbs, mbNum);
- }
- /* NOTE: edge=0 and edge=1~3 are separate cases because of the difference of MbP, index A and indexB calculation */
- /* for edge = 1~3, MbP, indexA and indexB remain the same, and thus there is no need to re-calculate them for each edge */
- qp_clip_tab = (int *)QP_CLIP_TAB + 12;
- /* 1.VERTICAL EDGE + MB BOUNDARY (edge = 0) */
- if (filterLeftMbEdgeFlag)
- {
- MbP = MbQ - 1;
- //GetStrength(video, Strength, MbP, MbQ, 0, 0); // Strength for 4 blks in 1 stripe, 0 => vertical edge
- GetStrength_Edge0(Strength, MbP, MbQ, 0);
- str = (void*)Strength; //de-ref type-punned pointer fix
- if (*((uint32*)str)) // only if one of the 4 Strength bytes is != 0
- {
- QP = (MbP->QPy + MbQ->QPy + 1) >> 1; // Average QP of the two blocks;
- indexA = QP + video->FilterOffsetA;
- indexB = QP + video->FilterOffsetB;
- indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA)
- indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB)
- Alpha = ALPHA_TABLE[indexA];
- Beta = BETA_TABLE[indexB];
- clipTable = (int *) CLIP_TAB[indexA];
- if (Alpha > 0 && Beta > 0)
- #ifdef USE_PRED_BLOCK
- EdgeLoop_Luma_vertical(SrcY, Strength, Alpha, Beta, clipTable, 20);
- #else
- EdgeLoop_Luma_vertical(SrcY, Strength, Alpha, Beta, clipTable, pitch);
- #endif
- QPC = (MbP->QPc + MbQ->QPc + 1) >> 1;
- indexA = QPC + video->FilterOffsetA;
- indexB = QPC + video->FilterOffsetB;
- indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA)
- indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB)
- Alpha = ALPHA_TABLE[indexA];
- Beta = BETA_TABLE[indexB];
- clipTable = (int *) CLIP_TAB[indexA];
- if (Alpha > 0 && Beta > 0)
- {
- #ifdef USE_PRED_BLOCK
- EdgeLoop_Chroma_vertical(SrcU, Strength, Alpha, Beta, clipTable, 12);
- EdgeLoop_Chroma_vertical(SrcV, Strength, Alpha, Beta, clipTable, 12);
- #else
- EdgeLoop_Chroma_vertical(SrcU, Strength, Alpha, Beta, clipTable, pitch >> 1);
- EdgeLoop_Chroma_vertical(SrcV, Strength, Alpha, Beta, clipTable, pitch >> 1);
- #endif
- }
- }
- } /* end of: if(filterLeftMbEdgeFlag) */
- /* 2.VERTICAL EDGE (no boundary), the edges are all inside a MB */
- /* First calculate the necesary parameters all at once, outside the loop */
- MbP = MbQ;
- indexA = MbQ->QPy + video->FilterOffsetA;
- indexB = MbQ->QPy + video->FilterOffsetB;
- // index
- indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA)
- indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB)
- Alpha = ALPHA_TABLE[indexA];
- Beta = BETA_TABLE[indexB];
- clipTable = (int *)CLIP_TAB[indexA];
- /* Save Alpha, Beta and clipTable for future use, with the obselete variables filterLeftMbEdgeFlag, mbNum amd tmp */
- filterLeftMbEdgeFlag = Alpha;
- mbNum = Beta;
- tmp = (uintptr_t)clipTable;
- indexA = MbQ->QPc + video->FilterOffsetA;
- indexB = MbQ->QPc + video->FilterOffsetB;
- indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA)
- indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB)
- Alpha_c = ALPHA_TABLE[indexA];
- Beta_c = BETA_TABLE[indexB];
- clipTable_c = (int *)CLIP_TAB[indexA];
- GetStrength_VerticalEdges(Strength + 4, MbQ); // Strength for 4 blks in 1 stripe, 0 => vertical edge
- for (edge = 1; edge < 4; edge++) // 4 vertical strips of 16 pel
- {
- //GetStrength_VerticalEdges(video, Strength, MbP, MbQ, 0, edge); // Strength for 4 blks in 1 stripe, 0 => vertical edge
- if (*((int*)(Strength + (edge << 2)))) // only if one of the 4 Strength bytes is != 0
- {
- if (Alpha > 0 && Beta > 0)
- #ifdef USE_PRED_BLOCK
- EdgeLoop_Luma_vertical(SrcY + (edge << 2), Strength + (edge << 2), Alpha, Beta, clipTable, 20);
- #else
- EdgeLoop_Luma_vertical(SrcY + (edge << 2), Strength + (edge << 2), Alpha, Beta, clipTable, pitch);
- #endif
- if (!(edge & 1) && Alpha_c > 0 && Beta_c > 0)
- {
- #ifdef USE_PRED_BLOCK
- EdgeLoop_Chroma_vertical(SrcU + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12);
- EdgeLoop_Chroma_vertical(SrcV + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12);
- #else
- EdgeLoop_Chroma_vertical(SrcU + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1);
- EdgeLoop_Chroma_vertical(SrcV + (edge << 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1);
- #endif
- }
- }
- } //end edge
- /* 3.HORIZONTAL EDGE + MB BOUNDARY (edge = 0) */
- if (filterTopMbEdgeFlag)
- {
- MbP = MbQ - video->PicWidthInMbs;
- //GetStrength(video, Strength, MbP, MbQ, 1, 0); // Strength for 4 blks in 1 stripe, 0 => vertical edge
- GetStrength_Edge0(Strength, MbP, MbQ, 1);
- str = (void*)Strength; //de-ref type-punned pointer fix
- if (*((uint32*)str)) // only if one of the 4 Strength bytes is != 0
- {
- QP = (MbP->QPy + MbQ->QPy + 1) >> 1; // Average QP of the two blocks;
- indexA = QP + video->FilterOffsetA;
- indexB = QP + video->FilterOffsetB;
- indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA)
- indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB)
- Alpha = ALPHA_TABLE[indexA];
- Beta = BETA_TABLE[indexB];
- clipTable = (int *)CLIP_TAB[indexA];
- if (Alpha > 0 && Beta > 0)
- {
- #ifdef USE_PRED_BLOCK
- EdgeLoop_Luma_horizontal(SrcY, Strength, Alpha, Beta, clipTable, 20);
- #else
- EdgeLoop_Luma_horizontal(SrcY, Strength, Alpha, Beta, clipTable, pitch);
- #endif
- }
- QPC = (MbP->QPc + MbQ->QPc + 1) >> 1;
- indexA = QPC + video->FilterOffsetA;
- indexB = QPC + video->FilterOffsetB;
- indexA = qp_clip_tab[indexA]; // IClip(0, MAX_QP, QP+video->FilterOffsetA)
- indexB = qp_clip_tab[indexB]; // IClip(0, MAX_QP, QP+video->FilterOffsetB)
- Alpha = ALPHA_TABLE[indexA];
- Beta = BETA_TABLE[indexB];
- clipTable = (int *)CLIP_TAB[indexA];
- if (Alpha > 0 && Beta > 0)
- {
- #ifdef USE_PRED_BLOCK
- EdgeLoop_Chroma_horizontal(SrcU, Strength, Alpha, Beta, clipTable, 12);
- EdgeLoop_Chroma_horizontal(SrcV, Strength, Alpha, Beta, clipTable, 12);
- #else
- EdgeLoop_Chroma_horizontal(SrcU, Strength, Alpha, Beta, clipTable, pitch >> 1);
- EdgeLoop_Chroma_horizontal(SrcV, Strength, Alpha, Beta, clipTable, pitch >> 1);
- #endif
- }
- }
- } /* end of: if(filterTopMbEdgeFlag) */
- /* 4.HORIZONTAL EDGE (no boundary), the edges are inside a MB */
- MbP = MbQ;
- /* Recover Alpha, Beta and clipTable for edge!=0 with the variables filterLeftMbEdgeFlag, mbNum and tmp */
- /* Note that Alpha_c, Beta_c and clipTable_c for chroma is already calculated */
- Alpha = filterLeftMbEdgeFlag;
- Beta = mbNum;
- clipTable = (int *)tmp;
- GetStrength_HorizontalEdges(Strength + 4, MbQ); // Strength for 4 blks in 1 stripe, 0 => vertical edge
- for (edge = 1; edge < 4; edge++) // 4 horicontal strips of 16 pel
- {
- //GetStrength(video, Strength, MbP, MbQ, 1, edge); // Strength for 4 blks in 1 stripe 1 => horizontal edge
- if (*((int*)(Strength + (edge << 2)))) // only if one of the 4 Strength bytes is != 0
- {
- if (Alpha > 0 && Beta > 0)
- {
- #ifdef USE_PRED_BLOCK
- EdgeLoop_Luma_horizontal(SrcY + (edge << 2)*20, Strength + (edge << 2), Alpha, Beta, clipTable, 20);
- #else
- EdgeLoop_Luma_horizontal(SrcY + (edge << 2)*pitch, Strength + (edge << 2), Alpha, Beta, clipTable, pitch);
- #endif
- }
- if (!(edge & 1) && Alpha_c > 0 && Beta_c > 0)
- {
- #ifdef USE_PRED_BLOCK
- EdgeLoop_Chroma_horizontal(SrcU + (edge << 1)*12, Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12);
- EdgeLoop_Chroma_horizontal(SrcV + (edge << 1)*12, Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, 12);
- #else
- EdgeLoop_Chroma_horizontal(SrcU + (edge << 1)*(pitch >> 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1);
- EdgeLoop_Chroma_horizontal(SrcV + (edge << 1)*(pitch >> 1), Strength + (edge << 2), Alpha_c, Beta_c, clipTable_c, pitch >> 1);
- #endif
- }
- }
- } //end edge
- return;
- }
- /*
- *****************************************************************************************************
- * \brief returns a buffer of 4 Strength values for one stripe in a mb (for different Frame types)
- *****************************************************************************************************
- */
- void GetStrength_Edge0(uint8 *Strength, AVCMacroblock* MbP, AVCMacroblock* MbQ, int dir)
- {
- int tmp;
- int16 *ptrQ, *ptrP;
- void* vptr;
- uint8 *pStrength;
- void* refIdx;
- if (MbP->mbMode == AVC_I4 || MbP->mbMode == AVC_I16 ||
- MbQ->mbMode == AVC_I4 || MbQ->mbMode == AVC_I16)
- {
- *((int*)Strength) = ININT_STRENGTH[0]; // Start with Strength=3. or Strength=4 for Mb-edge
- }
- else // if not intra or SP-frame
- {
- *((int*)Strength) = 0;
- if (dir == 0) // Vertical Edge 0
- {
- //1. Check the ref_frame_id
- refIdx = (void*) MbQ->RefIdx; //de-ref type-punned pointer fix
- ptrQ = (int16*)refIdx;
- refIdx = (void*)MbP->RefIdx; //de-ref type-punned pointer fix
- ptrP = (int16*)refIdx;
- pStrength = Strength;
- if (ptrQ[0] != ptrP[1]) pStrength[0] = 1;
- if (ptrQ[2] != ptrP[3]) pStrength[2] = 1;
- pStrength[1] = pStrength[0];
- pStrength[3] = pStrength[2];
- //2. Check the non-zero coeff blocks (4x4)
- if (MbQ->nz_coeff[0] != 0 || MbP->nz_coeff[3] != 0) pStrength[0] = 2;
- if (MbQ->nz_coeff[4] != 0 || MbP->nz_coeff[7] != 0) pStrength[1] = 2;
- if (MbQ->nz_coeff[8] != 0 || MbP->nz_coeff[11] != 0) pStrength[2] = 2;
- if (MbQ->nz_coeff[12] != 0 || MbP->nz_coeff[15] != 0) pStrength[3] = 2;
- //3. Only need to check the mv difference
- vptr = (void*)MbQ->mvL0; // for deref type-punned pointer
- ptrQ = (int16*)vptr;
- ptrP = (int16*)(MbP->mvL0 + 3); // points to 4x4 block #3 (the 4th column)
- // 1st blk
- if (*pStrength == 0)
- {
- // check |mv difference| >= 4
- tmp = *ptrQ++ - *ptrP++;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- tmp = *ptrQ-- - *ptrP--;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- }
- pStrength++;
- ptrQ += 8;
- ptrP += 8;
- // 2nd blk
- if (*pStrength == 0)
- {
- // check |mv difference| >= 4
- tmp = *ptrQ++ - *ptrP++;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- tmp = *ptrQ-- - *ptrP--;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- }
- pStrength++;
- ptrQ += 8;
- ptrP += 8;
- // 3rd blk
- if (*pStrength == 0)
- {
- // check |mv difference| >= 4
- tmp = *ptrQ++ - *ptrP++;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- tmp = *ptrQ-- - *ptrP--;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- }
- pStrength++;
- ptrQ += 8;
- ptrP += 8;
- // 4th blk
- if (*pStrength == 0)
- {
- // check |mv difference| >= 4
- tmp = *ptrQ++ - *ptrP++;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- tmp = *ptrQ-- - *ptrP--;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- }
- }
- else // Horizontal Edge 0
- {
- //1. Check the ref_frame_id
- refIdx = (void*)MbQ->RefIdx; //de-ref type-punned pointer
- ptrQ = (int16*)refIdx;
- refIdx = (void*)MbP->RefIdx; //de-ref type-punned pointer
- ptrP = (int16*)refIdx;
- pStrength = Strength;
- if (ptrQ[0] != ptrP[2]) pStrength[0] = 1;
- if (ptrQ[1] != ptrP[3]) pStrength[2] = 1;
- pStrength[1] = pStrength[0];
- pStrength[3] = pStrength[2];
- //2. Check the non-zero coeff blocks (4x4)
- if (MbQ->nz_coeff[0] != 0 || MbP->nz_coeff[12] != 0) pStrength[0] = 2;
- if (MbQ->nz_coeff[1] != 0 || MbP->nz_coeff[13] != 0) pStrength[1] = 2;
- if (MbQ->nz_coeff[2] != 0 || MbP->nz_coeff[14] != 0) pStrength[2] = 2;
- if (MbQ->nz_coeff[3] != 0 || MbP->nz_coeff[15] != 0) pStrength[3] = 2;
- //3. Only need to check the mv difference
- vptr = (void*)MbQ->mvL0;
- ptrQ = (int16*)vptr;
- ptrP = (int16*)(MbP->mvL0 + 12); // points to 4x4 block #12 (the 4th row)
- // 1st blk
- if (*pStrength == 0)
- {
- // check |mv difference| >= 4
- tmp = *ptrQ++ - *ptrP++;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- tmp = *ptrQ-- - *ptrP--;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- }
- pStrength++;
- ptrQ += 2;
- ptrP += 2;
- // 2nd blk
- if (*pStrength == 0)
- {
- // check |mv difference| >= 4
- tmp = *ptrQ++ - *ptrP++;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- tmp = *ptrQ-- - *ptrP--;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- }
- pStrength++;
- ptrQ += 2;
- ptrP += 2;
- // 3rd blk
- if (*pStrength == 0)
- {
- // check |mv difference| >= 4
- tmp = *ptrQ++ - *ptrP++;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- tmp = *ptrQ-- - *ptrP--;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- }
- pStrength++;
- ptrQ += 2;
- ptrP += 2;
- // 4th blk
- if (*pStrength == 0)
- {
- // check |mv difference| >= 4
- tmp = *ptrQ++ - *ptrP++;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- tmp = *ptrQ-- - *ptrP--;
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- }
- } /* end of: else if(dir == 0) */
- } /* end of: if( !(MbP->mbMode == AVC_I4 ...) */
- }
- void GetStrength_VerticalEdges(uint8 *Strength, AVCMacroblock* MbQ)
- {
- int idx, tmp;
- int16 *ptr, *pmvx, *pmvy;
- uint8 *pnz;
- uint8 *pStrength, *pStr;
- void* refIdx;
- if (MbQ->mbMode == AVC_I4 || MbQ->mbMode == AVC_I16)
- {
- *((int*)Strength) = ININT_STRENGTH[1]; // Start with Strength=3. or Strength=4 for Mb-edge
- *((int*)(Strength + 4)) = ININT_STRENGTH[2];
- *((int*)(Strength + 8)) = ININT_STRENGTH[3];
- }
- else // Not intra or SP-frame
- {
- *((int*)Strength) = 0; // for non-intra MB, strength = 0, 1 or 2.
- *((int*)(Strength + 4)) = 0;
- *((int*)(Strength + 8)) = 0;
- //1. Check the ref_frame_id
- refIdx = (void*)MbQ->RefIdx; //de-ref type-punned pointer fix
- ptr = (int16*)refIdx;
- pStrength = Strength;
- if (ptr[0] != ptr[1]) pStrength[4] = 1;
- if (ptr[2] != ptr[3]) pStrength[6] = 1;
- pStrength[5] = pStrength[4];
- pStrength[7] = pStrength[6];
- //2. Check the nz_coeff block and mv difference
- pmvx = (int16*)(MbQ->mvL0 + 1); // points to 4x4 block #1,not #0
- pmvy = pmvx + 1;
- for (idx = 0; idx < 4; idx += 2) // unroll the loop, make 4 iterations to 2
- {
- // first/third row : 1,2,3 or 9,10,12
- // Strength = 2 for a whole row
- pnz = MbQ->nz_coeff + (idx << 2);
- if (*pnz++ != 0) *pStrength = 2;
- if (*pnz++ != 0)
- {
- *pStrength = 2;
- *(pStrength + 4) = 2;
- }
- if (*pnz++ != 0)
- {
- *(pStrength + 4) = 2;
- *(pStrength + 8) = 2;
- }
- if (*pnz != 0) *(pStrength + 8) = 2;
- // Then Strength = 1
- if (*pStrength == 0)
- {
- //within the same 8x8 block, no need to check the reference id
- //only need to check the |mv difference| >= 4
- tmp = *pmvx - *(pmvx - 2);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- tmp = *pmvy - *(pmvy - 2);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- }
- pmvx += 2;
- pmvy += 2;
- pStr = pStrength + 4;
- if (*pStr == 0)
- {
- //check the |mv difference| >= 4
- tmp = *pmvx - *(pmvx - 2);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- tmp = *pmvy - *(pmvy - 2);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- }
- pmvx += 2;
- pmvy += 2;
- pStr = pStrength + 8;
- if (*pStr == 0)
- {
- //within the same 8x8 block, no need to check the reference id
- //only need to check the |mv difference| >= 4
- tmp = *pmvx - *(pmvx - 2);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- tmp = *pmvy - *(pmvy - 2);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- }
- // Second/fourth row: 5,6,7 or 14,15,16
- // Strength = 2 for a whole row
- pnz = MbQ->nz_coeff + ((idx + 1) << 2);
- if (*pnz++ != 0) *(pStrength + 1) = 2;
- if (*pnz++ != 0)
- {
- *(pStrength + 1) = 2;
- *(pStrength + 5) = 2;
- }
- if (*pnz++ != 0)
- {
- *(pStrength + 5) = 2;
- *(pStrength + 9) = 2;
- }
- if (*pnz != 0) *(pStrength + 9) = 2;
- // Then Strength = 1
- pmvx += 4;
- pmvy += 4;
- pStr = pStrength + 1;
- if (*pStr == 0)
- {
- //within the same 8x8 block, no need to check the reference id
- //only need to check the |mv difference| >= 4
- tmp = *pmvx - *(pmvx - 2);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- tmp = *pmvy - *(pmvy - 2);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- }
- pmvx += 2;
- pmvy += 2;
- pStr = pStrength + 5;
- if (*pStr == 0)
- {
- //check the |mv difference| >= 4
- tmp = *pmvx - *(pmvx - 2);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- tmp = *pmvy - *(pmvy - 2);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- }
- pmvx += 2;
- pmvy += 2;
- pStr = pStrength + 9;
- if (*pStr == 0)
- {
- //within the same 8x8 block, no need to check the reference id
- //only need to check the |mv difference| >= 4
- tmp = *pmvx - *(pmvx - 2);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- tmp = *pmvy - *(pmvy - 2);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- }
- // update some variables for the next two rows
- pmvx += 4;
- pmvy += 4;
- pStrength += 2;
- } /* end of: for(idx=0; idx<2; idx++) */
- } /* end of: else if( MbQ->mbMode == AVC_I4 ...) */
- }
- void GetStrength_HorizontalEdges(uint8 Strength[12], AVCMacroblock* MbQ)
- {
- int idx, tmp;
- int16 *ptr, *pmvx, *pmvy;
- uint8 *pStrength, *pStr;
- void* refIdx;
- if (MbQ->mbMode == AVC_I4 || MbQ->mbMode == AVC_I16)
- {
- *((int*)Strength) = ININT_STRENGTH[1]; // Start with Strength=3. or Strength=4 for Mb-edge
- *((int*)(Strength + 4)) = ININT_STRENGTH[2];
- *((int*)(Strength + 8)) = ININT_STRENGTH[3];
- }
- else // Not intra or SP-frame
- {
- *((int*)Strength) = 0; // for non-intra MB, strength = 0, 1 or 2.
- *((int*)(Strength + 4)) = 0; // for non-intra MB, strength = 0, 1 or 2.
- *((int*)(Strength + 8)) = 0; // for non-intra MB, strength = 0, 1 or 2.
- //1. Check the ref_frame_id
- refIdx = (void*) MbQ->RefIdx; // de-ref type-punned fix
- ptr = (int16*) refIdx;
- pStrength = Strength;
- if (ptr[0] != ptr[2]) pStrength[4] = 1;
- if (ptr[1] != ptr[3]) pStrength[6] = 1;
- pStrength[5] = pStrength[4];
- pStrength[7] = pStrength[6];
- //2. Check the nz_coeff block and mv difference
- pmvx = (int16*)(MbQ->mvL0 + 4); // points to 4x4 block #4,not #0
- pmvy = pmvx + 1;
- for (idx = 0; idx < 4; idx += 2) // unroll the loop, make 4 iterations to 2
- {
- // first/third row : 1,2,3 or 9,10,12
- // Strength = 2 for a whole row
- if (MbQ->nz_coeff[idx] != 0) *pStrength = 2;
- if (MbQ->nz_coeff[4+idx] != 0)
- {
- *pStrength = 2;
- *(pStrength + 4) = 2;
- }
- if (MbQ->nz_coeff[8+idx] != 0)
- {
- *(pStrength + 4) = 2;
- *(pStrength + 8) = 2;
- }
- if (MbQ->nz_coeff[12+idx] != 0) *(pStrength + 8) = 2;
- // Then Strength = 1
- if (*pStrength == 0)
- {
- //within the same 8x8 block, no need to check the reference id
- //only need to check the |mv difference| >= 4
- tmp = *pmvx - *(pmvx - 8);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- tmp = *pmvy - *(pmvy - 8);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStrength = 1;
- }
- pmvx += 8;
- pmvy += 8;
- pStr = pStrength + 4;
- if (*pStr == 0)
- {
- //check the |mv difference| >= 4
- tmp = *pmvx - *(pmvx - 8);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- tmp = *pmvy - *(pmvy - 8);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- }
- pmvx += 8;
- pmvy += 8;
- pStr = pStrength + 8;
- if (*pStr == 0)
- {
- //within the same 8x8 block, no need to check the reference id
- //only need to check the |mv difference| >= 4
- tmp = *pmvx - *(pmvx - 8);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- tmp = *pmvy - *(pmvy - 8);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- }
- // Second/fourth row: 5,6,7 or 14,15,16
- // Strength = 2 for a whole row
- if (MbQ->nz_coeff[idx+1] != 0) *(pStrength + 1) = 2;
- if (MbQ->nz_coeff[4+idx+1] != 0)
- {
- *(pStrength + 1) = 2;
- *(pStrength + 5) = 2;
- }
- if (MbQ->nz_coeff[8+idx+1] != 0)
- {
- *(pStrength + 5) = 2;
- *(pStrength + 9) = 2;
- }
- if (MbQ->nz_coeff[12+idx+1] != 0) *(pStrength + 9) = 2;
- // Then Strength = 1
- pmvx -= 14;
- pmvy -= 14; // -14 = -16 + 2
- pStr = pStrength + 1;
- if (*pStr == 0)
- {
- //within the same 8x8 block, no need to check the reference id
- //only need to check the |mv difference| >= 4
- tmp = *pmvx - *(pmvx - 8);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- tmp = *pmvy - *(pmvy - 8);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- }
- pmvx += 8;
- pmvy += 8;
- pStr = pStrength + 5;
- if (*pStr == 0)
- {
- //check the |mv difference| >= 4
- tmp = *pmvx - *(pmvx - 8);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- tmp = *pmvy - *(pmvy - 8);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- }
- pmvx += 8;
- pmvy += 8;
- pStr = pStrength + 9;
- if (*pStr == 0)
- {
- //within the same 8x8 block, no need to check the reference id
- //only need to check the |mv difference| >= 4
- tmp = *pmvx - *(pmvx - 8);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- tmp = *pmvy - *(pmvy - 8);
- if (tmp < 0) tmp = -tmp;
- if (tmp >= 4) *pStr = 1;
- }
- // update some variables for the next two rows
- pmvx -= 14;
- pmvy -= 14; // -14 = -16 + 2
- pStrength += 2;
- } /* end of: for(idx=0; idx<2; idx++) */
- } /* end of: else if( MbQ->mbMode == AVC_I4 ...) */
- }
- /*
- *****************************************************************************************
- * \brief Filters one edge of 16 (luma) or 8 (chroma) pel
- *****************************************************************************************
- */
- void EdgeLoop_Luma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch)
- {
- int pel, ap = 0, aq = 0, Strng;
- int C0, c0, dif, AbsDelta, tmp, tmp1;
- int L2 = 0, L1, L0, R0, R1, R2 = 0, RL0;
- if (Strength[0] == 4) /* INTRA strong filtering */
- {
- for (pel = 0; pel < 16; pel++)
- {
- R0 = SrcPtr[0];
- R1 = SrcPtr[pitch];
- L0 = SrcPtr[-pitch];
- L1 = SrcPtr[-(pitch<<1)];
- // |R0 - R1| < Beta
- tmp1 = R0 - R1;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp = (tmp1 - Beta);
- //|L0 - L1| < Beta
- tmp1 = L0 - L1;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp &= (tmp1 - Beta);
- //|R0 - L0| < Alpha
- AbsDelta = R0 - L0;
- if (AbsDelta < 0) AbsDelta = -AbsDelta;
- tmp &= (AbsDelta - Alpha);
- if (tmp < 0)
- {
- AbsDelta -= ((Alpha >> 2) + 2);
- R2 = SrcPtr[pitch<<1]; //inc2
- L2 = SrcPtr[-(pitch+(pitch<<1))]; // -inc3
- // |R0 - R2| < Beta && |R0 - L0| < (Alpha/4 + 2)
- tmp = R0 - R2;
- if (tmp < 0) tmp = -tmp;
- aq = AbsDelta & (tmp - Beta);
- // |L0 - L2| < Beta && |R0 - L0| < (Alpha/4 + 2)
- tmp = L0 - L2;
- if (tmp < 0) tmp = -tmp;
- ap = AbsDelta & (tmp - Beta);
- if (aq < 0)
- {
- tmp = R1 + R0 + L0;
- SrcPtr[0] = (L1 + (tmp << 1) + R2 + 4) >> 3;
- tmp += R2;
- SrcPtr[pitch] = (tmp + 2) >> 2;
- SrcPtr[pitch<<1] = (((SrcPtr[(pitch+(pitch<<1))] + R2) << 1) + tmp + 4) >> 3;
- }
- else
- SrcPtr[0] = ((R1 << 1) + R0 + L1 + 2) >> 2;
- if (ap < 0)
- {
- tmp = L1 + R0 + L0;
- SrcPtr[-pitch] = (R1 + (tmp << 1) + L2 + 4) >> 3;
- tmp += L2;
- SrcPtr[-(pitch<<1)] = (tmp + 2) >> 2;
- SrcPtr[-(pitch+(pitch<<1))] = (((SrcPtr[-(pitch<<2)] + L2) << 1) + tmp + 4) >> 3;
- }
- else
- SrcPtr[-pitch] = ((L1 << 1) + L0 + R1 + 2) >> 2;
- } /* if(tmp < 0) */
- SrcPtr ++; // Increment to next set of pixel
- } /* end of: for(pel=0; pel<16; pel++) */
- } /* if(Strength[0] == 4) */
- else /* Normal filtering */
- {
- for (pel = 0; pel < 16; pel++)
- {
- Strng = Strength[pel >> 2];
- if (Strng)
- {
- R0 = SrcPtr[0];
- R1 = SrcPtr[pitch];
- L0 = SrcPtr[-pitch];
- L1 = SrcPtr[-(pitch<<1)]; // inc2
- //|R0 - L0| < Alpha
- tmp1 = R0 - L0;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp = (tmp1 - Alpha);
- // |R0 - R1| < Beta
- tmp1 = R0 - R1;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp &= (tmp1 - Beta);
- //|L0 - L1| < Beta
- tmp1 = L0 - L1;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp &= (tmp1 - Beta);
- if (tmp < 0)
- {
- R2 = SrcPtr[pitch<<1]; //inc2
- L2 = SrcPtr[-(pitch+(pitch<<1))]; // -inc3
- // |R0 - R2| < Beta
- tmp = R0 - R2;
- if (tmp < 0) tmp = -tmp;
- aq = tmp - Beta;
- // |L0 - L2| < Beta
- tmp = L0 - L2;
- if (tmp < 0) tmp = -tmp;
- ap = tmp - Beta;
- c0 = C0 = clipTable[Strng];
- if (ap < 0) c0++;
- if (aq < 0) c0++;
- //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3);
- dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3;
- tmp = dif + c0;
- if ((uint)tmp > (uint)c0 << 1)
- {
- tmp = ~(tmp >> 31);
- dif = (tmp & (c0 << 1)) - c0;
- }
- //SrcPtr[0] = (uint8)IClip(0, 255, R0 - dif);
- //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif);
- RL0 = R0 + L0;
- R0 -= dif;
- L0 += dif;
- if ((uint)R0 > 255)
- {
- tmp = ~(R0 >> 31);
- R0 = tmp & 255;
- }
- if ((uint)L0 > 255)
- {
- tmp = ~(L0 >> 31);
- L0 = tmp & 255;
- }
- SrcPtr[-pitch] = L0;
- SrcPtr[0] = R0;
- if (C0 != 0) /* Multiple zeros in the clip tables */
- {
- if (aq < 0) // SrcPtr[inc] += IClip(-C0, C0,(R2 + ((RL0 + 1) >> 1) - (R1<<1)) >> 1);
- {
- R2 = (R2 + ((RL0 + 1) >> 1) - (R1 << 1)) >> 1;
- tmp = R2 + C0;
- if ((uint)tmp > (uint)C0 << 1)
- {
- tmp = ~(tmp >> 31);
- R2 = (tmp & (C0 << 1)) - C0;
- }
- SrcPtr[pitch] += R2;
- }
- if (ap < 0) //SrcPtr[-inc2] += IClip(-C0, C0,(L2 + ((RL0 + 1) >> 1) - (L1<<1)) >> 1);
- {
- L2 = (L2 + ((RL0 + 1) >> 1) - (L1 << 1)) >> 1;
- tmp = L2 + C0;
- if ((uint)tmp > (uint)C0 << 1)
- {
- tmp = ~(tmp >> 31);
- L2 = (tmp & (C0 << 1)) - C0;
- }
- SrcPtr[-(pitch<<1)] += L2;
- }
- }
- } /* if(tmp < 0) */
- } /* end of: if((Strng = Strength[pel >> 2])) */
- SrcPtr ++; // Increment to next set of pixel
- } /* for(pel=0; pel<16; pel++) */
- } /* else if(Strength[0] == 4) */
- }
- void EdgeLoop_Luma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch)
- {
- int pel, ap = 1, aq = 1;
- int C0, c0, dif, AbsDelta, Strng, tmp, tmp1;
- int L2 = 0, L1, L0, R0, R1, R2 = 0;
- uint8 *ptr, *ptr1;
- register uint R_in, L_in;
- uint R_out, L_out;
- if (Strength[0] == 4) /* INTRA strong filtering */
- {
- for (pel = 0; pel < 16; pel++)
- {
- // Read 8 pels
- R_in = *((uint *)SrcPtr); // R_in = {R3, R2, R1, R0}
- L_in = *((uint *)(SrcPtr - 4)); // L_in = {L0, L1, L2, L3}
- R1 = (R_in >> 8) & 0xff;
- R0 = R_in & 0xff;
- L0 = L_in >> 24;
- L1 = (L_in >> 16) & 0xff;
- // |R0 - R1| < Beta
- tmp1 = (R_in & 0xff) - R1;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp = (tmp1 - Beta);
- //|L0 - L1| < Beta
- tmp1 = (L_in >> 24) - L1;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp &= (tmp1 - Beta);
- //|R0 - L0| < Alpha
- AbsDelta = (R_in & 0xff) - (L_in >> 24);
- if (AbsDelta < 0) AbsDelta = -AbsDelta;
- tmp &= (AbsDelta - Alpha);
- if (tmp < 0)
- {
- AbsDelta -= ((Alpha >> 2) + 2);
- R2 = (R_in >> 16) & 0xff;
- L2 = (L_in >> 8) & 0xff;
- // |R0 - R2| < Beta && |R0 - L0| < (Alpha/4 + 2)
- tmp1 = (R_in & 0xff) - R2;
- if (tmp1 < 0) tmp1 = -tmp1;
- aq = AbsDelta & (tmp1 - Beta);
- // |L0 - L2| < Beta && |R0 - L0| < (Alpha/4 + 2)
- tmp1 = (L_in >> 24) - L2;
- if (tmp1 < 0) tmp1 = -tmp1;
- ap = AbsDelta & (tmp1 - Beta);
- ptr = SrcPtr;
- if (aq < 0)
- {
- R_out = (R_in >> 24) << 24; // Keep R3 at the fourth byte
- tmp = R0 + L0 + R1;
- R_out |= (((tmp << 1) + L1 + R2 + 4) >> 3);
- tmp += R2;
- R_out |= (((tmp + 2) >> 2) << 8);
- tmp1 = ((R_in >> 24) + R2) << 1;
- R_out |= (((tmp1 + tmp + 4) >> 3) << 16);
- *((uint *)SrcPtr) = R_out;
- }
- else
- *ptr = ((R1 << 1) + R0 + L1 + 2) >> 2;
- if (ap < 0)
- {
- L_out = (L_in << 24) >> 24; // Keep L3 at the first byte
- tmp = R0 + L0 + L1;
- L_out |= ((((tmp << 1) + R1 + L2 + 4) >> 3) << 24);
- tmp += L2;
- L_out |= (((tmp + 2) >> 2) << 16);
- tmp1 = ((L_in & 0xff) + L2) << 1;
- L_out |= (((tmp1 + tmp + 4) >> 3) << 8);
- *((uint *)(SrcPtr - 4)) = L_out;
- }
- else
- *(--ptr) = ((L1 << 1) + L0 + R1 + 2) >> 2;
- } /* if(tmp < 0) */
- SrcPtr += pitch; // Increment to next set of pixel
- } /* end of: for(pel=0; pel<16; pel++) */
- } /* if(Strength[0] == 4) */
- else /* Normal filtering */
- {
- for (pel = 0; pel < 16; pel++)
- {
- Strng = Strength[pel >> 2];
- if (Strng)
- {
- // Read 8 pels
- R_in = *((uint *)SrcPtr); // R_in = {R3, R2, R1, R0}
- L_in = *((uint *)(SrcPtr - 4)); // L_in = {L0, L1, L2, L3}
- R1 = (R_in >> 8) & 0xff;
- R0 = R_in & 0xff;
- L0 = L_in >> 24;
- L1 = (L_in >> 16) & 0xff;
- //|R0 - L0| < Alpha
- tmp = R0 - L0;
- if (tmp < 0) tmp = -tmp;
- tmp -= Alpha;
- // |R0 - R1| < Beta
- tmp1 = R0 - R1;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp &= (tmp1 - Beta);
- //|L0 - L1| < Beta
- tmp1 = L0 - L1;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp &= (tmp1 - Beta);
- if (tmp < 0)
- {
- L2 = SrcPtr[-3];
- R2 = SrcPtr[2];
- // |R0 - R2| < Beta
- tmp = R0 - R2;
- if (tmp < 0) tmp = -tmp;
- aq = tmp - Beta;
- // |L0 - L2| < Beta
- tmp = L0 - L2;
- if (tmp < 0) tmp = -tmp;
- ap = tmp - Beta;
- c0 = C0 = clipTable[Strng];
- if (ap < 0) c0++;
- if (aq < 0) c0++;
- //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3);
- dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3;
- tmp = dif + c0;
- if ((uint)tmp > (uint)c0 << 1)
- {
- tmp = ~(tmp >> 31);
- dif = (tmp & (c0 << 1)) - c0;
- }
- ptr = SrcPtr;
- ptr1 = SrcPtr - 1;
- //SrcPtr[0] = (uint8)IClip(0, 255, R0 - dif);
- //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif);
- R_in = R0 - dif;
- L_in = L0 + dif; /* cannot re-use R0 and L0 here */
- if ((uint)R_in > 255)
- {
- tmp = ~((int)R_in >> 31);
- R_in = tmp & 255;
- }
- if ((uint)L_in > 255)
- {
- tmp = ~((int)L_in >> 31);
- L_in = tmp & 255;
- }
- *ptr1-- = L_in;
- *ptr++ = R_in;
- if (C0 != 0) // Multiple zeros in the clip tables
- {
- if (ap < 0) //SrcPtr[-inc2] += IClip(-C0, C0,(L2 + ((RL0 + 1) >> 1) - (L1<<1)) >> 1);
- {
- L2 = (L2 + ((R0 + L0 + 1) >> 1) - (L1 << 1)) >> 1;
- tmp = L2 + C0;
- if ((uint)tmp > (uint)C0 << 1)
- {
- tmp = ~(tmp >> 31);
- L2 = (tmp & (C0 << 1)) - C0;
- }
- *ptr1 += L2;
- }
- if (aq < 0) // SrcPtr[inc] += IClip(-C0, C0,(R2 + ((RL0 + 1) >> 1) - (R1<<1)) >> 1);
- {
- R2 = (R2 + ((R0 + L0 + 1) >> 1) - (R1 << 1)) >> 1;
- tmp = R2 + C0;
- if ((uint)tmp > (uint)C0 << 1)
- {
- tmp = ~(tmp >> 31);
- R2 = (tmp & (C0 << 1)) - C0;
- }
- *ptr += R2;
- }
- }
- } /* if(tmp < 0) */
- } /* end of: if((Strng = Strength[pel >> 2])) */
- SrcPtr += pitch; // Increment to next set of pixel
- } /* for(pel=0; pel<16; pel++) */
- } /* else if(Strength[0] == 4) */
- }
- void EdgeLoop_Chroma_vertical(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch)
- {
- int pel, Strng;
- int c0, dif;
- int L1, L0, R0, R1, tmp, tmp1;
- uint8 *ptr;
- uint R_in, L_in;
- for (pel = 0; pel < 16; pel++)
- {
- Strng = Strength[pel>>2];
- if (Strng)
- {
- // Read 8 pels
- R_in = *((uint *)SrcPtr); // R_in = {R3, R2, R1, R0}
- L_in = *((uint *)(SrcPtr - 4)); // L_in = {L0, L1, L2, L3}
- R1 = (R_in >> 8) & 0xff;
- R0 = R_in & 0xff;
- L0 = L_in >> 24;
- L1 = (L_in >> 16) & 0xff;
- // |R0 - R1| < Beta
- tmp1 = R0 - R1;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp = (tmp1 - Beta);
- //|L0 - L1| < Beta
- tmp1 = L0 - L1;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp &= (tmp1 - Beta);
- //|R0 - L0| < Alpha
- tmp1 = R0 - L0;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp &= (tmp1 - Alpha);
- if (tmp < 0)
- {
- ptr = SrcPtr;
- if (Strng == 4) /* INTRA strong filtering */
- {
- *ptr-- = ((R1 << 1) + R0 + L1 + 2) >> 2;
- *ptr = ((L1 << 1) + L0 + R1 + 2) >> 2;
- }
- else /* normal filtering */
- {
- c0 = clipTable[Strng] + 1;
- //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3);
- dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3;
- tmp = dif + c0;
- if ((uint)tmp > (uint)c0 << 1)
- {
- tmp = ~(tmp >> 31);
- dif = (tmp & (c0 << 1)) - c0;
- }
- //SrcPtr[0] = (uint8)IClip(0, 255, R0 - dif);
- //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif);
- L0 += dif;
- R0 -= dif;
- if ((uint)L0 > 255)
- {
- tmp = ~(L0 >> 31);
- L0 = tmp & 255;
- }
- if ((uint)R0 > 255)
- {
- tmp = ~(R0 >> 31);
- R0 = tmp & 255;
- }
- *ptr-- = R0;
- *ptr = L0;
- }
- }
- pel ++;
- SrcPtr += pitch; // Increment to next set of pixel
- } /* end of: if((Strng = Strength[pel >> 2])) */
- else
- {
- pel += 3;
- SrcPtr += (pitch << 1); //PtrInc << 1;
- }
- } /* end of: for(pel=0; pel<16; pel++) */
- }
- void EdgeLoop_Chroma_horizontal(uint8* SrcPtr, uint8 *Strength, int Alpha, int Beta, int *clipTable, int pitch)
- {
- int pel, Strng;
- int c0, dif;
- int L1, L0, R0, R1, tmp, tmp1;
- for (pel = 0; pel < 16; pel++)
- {
- Strng = Strength[pel>>2];
- if (Strng)
- {
- R0 = SrcPtr[0];
- L0 = SrcPtr[-pitch];
- L1 = SrcPtr[-(pitch<<1)]; //inc2
- R1 = SrcPtr[pitch];
- // |R0 - R1| < Beta
- tmp1 = R0 - R1;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp = (tmp1 - Beta);
- //|L0 - L1| < Beta
- tmp1 = L0 - L1;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp &= (tmp1 - Beta);
- //|R0 - L0| < Alpha
- tmp1 = R0 - L0;
- if (tmp1 < 0) tmp1 = -tmp1;
- tmp &= (tmp1 - Alpha);
- if (tmp < 0)
- {
- if (Strng == 4) /* INTRA strong filtering */
- {
- SrcPtr[0] = ((R1 << 1) + R0 + L1 + 2) >> 2;
- SrcPtr[-pitch] = ((L1 << 1) + L0 + R1 + 2) >> 2;
- }
- else /* normal filtering */
- {
- c0 = clipTable[Strng] + 1;
- //dif = IClip(-c0, c0, ((Delta << 2) + (L1 - R1) + 4) >> 3);
- dif = (((R0 - L0) << 2) + (L1 - R1) + 4) >> 3;
- tmp = dif + c0;
- if ((uint)tmp > (uint)c0 << 1)
- {
- tmp = ~(tmp >> 31);
- dif = (tmp & (c0 << 1)) - c0;
- }
- //SrcPtr[-inc] = (uint8)IClip(0, 255, L0 + dif);
- //SrcPtr[0] = (uint8)IClip(0, 255, R0 - dif);
- L0 += dif;
- R0 -= dif;
- if ((uint)L0 > 255)
- {
- tmp = ~(L0 >> 31);
- L0 = tmp & 255;
- }
- if ((uint)R0 > 255)
- {
- tmp = ~(R0 >> 31);
- R0 = tmp & 255;
- }
- SrcPtr[0] = R0;
- SrcPtr[-pitch] = L0;
- }
- }
- pel ++;
- SrcPtr ++; // Increment to next set of pixel
- } /* end of: if((Strng = Strength[pel >> 2])) */
- else
- {
- pel += 3;
- SrcPtr += 2;
- }
- } /* end of: for(pel=0; pel<16; pel++) */
- }