| /****************************************************************************** |
| * |
| * 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_padding.c |
| * |
| * @brief |
| * Contains function definitions for Padding |
| * |
| * @author |
| * Srinivas T |
| * |
| * @par List of Functions: |
| * - ihevc_pad_horz_luma() |
| * - ihevc_pad_horz_chroma() |
| * - ihevc_pad_vert() |
| * - ihevc_pad_left_luma() |
| * - ihevc_pad_left_chroma() |
| * - ihevc_pad_right_luma() |
| * - ihevc_pad_right_chroma() |
| * - ihevc_pad_top() |
| * - ihevc_pad_bottom() |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| #include <string.h> |
| #include "ihevc_typedefs.h" |
| #include "ihevc_func_selector.h" |
| #include "ihevc_platform_macros.h" |
| #include "ihevc_mem_fns.h" |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Padding function for horizontal input variable |
| * |
| * @par Description: |
| * |
| * |
| * @param[in] pu1_src |
| * UWORD8 pointer to the source |
| * |
| * @param[in] src_strd |
| * integer source stride |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @param[in] pad_size |
| * integer -padding size of the array |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @returns |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| void ihevc_pad_vert(UWORD8 *pu1_src, |
| WORD32 src_strd, |
| WORD32 ht, |
| WORD32 wd, |
| WORD32 pad_size) |
| { |
| WORD32 row; |
| |
| for(row = 1; row <= pad_size; row++) |
| { |
| memcpy(pu1_src - row * src_strd, pu1_src, wd); |
| memcpy(pu1_src + (ht + row - 1) * src_strd, |
| pu1_src + (ht - 1) * src_strd, wd); |
| } |
| } |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Padding function for vertical input variable |
| * |
| * @par Description: |
| * |
| * |
| * @param[in] pu1_src |
| * UWORD8 pointer to the source |
| * |
| * @param[in] src_strd |
| * integer source stride |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @param[in] pad_size |
| * integer -padding size of the array |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @returns |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| void ihevc_pad_horz_chroma(UWORD8 *pu1_src, |
| WORD32 src_strd, |
| WORD32 ht, |
| WORD32 wd, |
| WORD32 pad_size) |
| { |
| WORD32 row; |
| //WORD32 col; |
| UWORD16 *pu2_src = (UWORD16 *)pu1_src; |
| |
| src_strd >>= 1; |
| wd >>= 1; |
| pad_size >>= 1; |
| |
| for(row = 0; row < ht; row++) |
| { |
| UWORD16 u2_uv_val; |
| |
| u2_uv_val = pu2_src[0]; |
| ihevc_memset_16bit(&pu2_src[-pad_size], u2_uv_val, pad_size); |
| |
| u2_uv_val = pu2_src[wd - 1]; |
| ihevc_memset_16bit(&pu2_src[wd], u2_uv_val, pad_size); |
| |
| pu2_src += src_strd; |
| } |
| } |
| |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Padding function for vertical input variable |
| * |
| * @par Description: |
| * |
| * |
| * @param[in] pu1_src |
| * UWORD8 pointer to the source |
| * |
| * @param[in] src_strd |
| * integer source stride |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @param[in] pad_size |
| * integer -padding size of the array |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @returns |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| void ihevc_pad_horz_luma(UWORD8 *pu1_src, |
| WORD32 src_strd, |
| WORD32 ht, |
| WORD32 wd, |
| WORD32 pad_size) |
| { |
| WORD32 row; |
| |
| for(row = 0; row < ht; row++) |
| { |
| memset(pu1_src - pad_size, *pu1_src, pad_size); |
| memset(pu1_src + wd, *(pu1_src + wd - 1), pad_size); |
| |
| pu1_src += src_strd; |
| } |
| } |
| |
| |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Padding at the top of a 2d array |
| * |
| * @par Description: |
| * The top row of a 2d array is replicated for pad_size times at the top |
| * |
| * |
| * @param[in] pu1_src |
| * UWORD8 pointer to the source |
| * |
| * @param[in] src_strd |
| * integer source stride |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @param[in] pad_size |
| * integer -padding size of the array |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @returns |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| void ihevc_pad_top(UWORD8 *pu1_src, |
| WORD32 src_strd, |
| WORD32 wd, |
| WORD32 pad_size) |
| { |
| WORD32 row; |
| |
| for(row = 1; row <= pad_size; row++) |
| { |
| memcpy(pu1_src - row * src_strd, pu1_src, wd); |
| } |
| } |
| |
| |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Padding at the bottom of a 2d array |
| * |
| * @par Description: |
| * The bottom row of a 2d array is replicated for pad_size times at the bottom |
| * |
| * |
| * @param[in] pu1_src |
| * UWORD8 pointer to the source |
| * |
| * @param[in] src_strd |
| * integer source stride |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @param[in] pad_size |
| * integer -padding size of the array |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @returns |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| void ihevc_pad_bottom(UWORD8 *pu1_src, |
| WORD32 src_strd, |
| WORD32 wd, |
| WORD32 pad_size) |
| { |
| WORD32 row; |
| |
| for(row = 1; row <= pad_size; row++) |
| { |
| memcpy(pu1_src + (row - 1) * src_strd, |
| pu1_src - 1 * src_strd, wd); |
| } |
| } |
| |
| |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Padding (luma block) at the left of a 2d array |
| * |
| * @par Description: |
| * The left column of a 2d array is replicated for pad_size times at the left |
| * |
| * |
| * @param[in] pu1_src |
| * UWORD8 pointer to the source |
| * |
| * @param[in] src_strd |
| * integer source stride |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @param[in] pad_size |
| * integer -padding size of the array |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @returns |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| void ihevc_pad_left_luma(UWORD8 *pu1_src, |
| WORD32 src_strd, |
| WORD32 ht, |
| WORD32 pad_size) |
| { |
| WORD32 row; |
| |
| for(row = 0; row < ht; row++) |
| { |
| memset(pu1_src - pad_size, *pu1_src, pad_size); |
| |
| pu1_src += src_strd; |
| } |
| } |
| |
| |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Padding (chroma block) at the left of a 2d array |
| * |
| * @par Description: |
| * The left column of a 2d array is replicated for pad_size times at the left |
| * |
| * |
| * @param[in] pu1_src |
| * UWORD8 pointer to the source |
| * |
| * @param[in] src_strd |
| * integer source stride |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array (each colour component) |
| * |
| * @param[in] pad_size |
| * integer -padding size of the array |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @returns |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| void ihevc_pad_left_chroma(UWORD8 *pu1_src, |
| WORD32 src_strd, |
| WORD32 ht, |
| WORD32 pad_size) |
| { |
| WORD32 row; |
| WORD32 col; |
| UWORD16 *pu2_src = (UWORD16 *)pu1_src; |
| |
| src_strd >>= 1; |
| pad_size >>= 1; |
| |
| for(row = 0; row < ht; row++) |
| { |
| UWORD16 u2_uv_val; |
| |
| u2_uv_val = pu2_src[0]; |
| for(col = -pad_size; col < 0; col++) |
| pu2_src[col] = u2_uv_val; |
| |
| pu2_src += src_strd; |
| } |
| } |
| |
| |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Padding (luma block) at the right of a 2d array |
| * |
| * @par Description: |
| * The right column of a 2d array is replicated for pad_size times at the right |
| * |
| * |
| * @param[in] pu1_src |
| * UWORD8 pointer to the source |
| * |
| * @param[in] src_strd |
| * integer source stride |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @param[in] pad_size |
| * integer -padding size of the array |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @returns |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| void ihevc_pad_right_luma(UWORD8 *pu1_src, |
| WORD32 src_strd, |
| WORD32 ht, |
| WORD32 pad_size) |
| { |
| WORD32 row; |
| |
| for(row = 0; row < ht; row++) |
| { |
| memset(pu1_src, *(pu1_src - 1), pad_size); |
| |
| pu1_src += src_strd; |
| } |
| } |
| |
| |
| |
| /** |
| ******************************************************************************* |
| * |
| * @brief |
| * Padding (chroma block) at the right of a 2d array |
| * |
| * @par Description: |
| * The right column of a 2d array is replicated for pad_size times at the right |
| * |
| * |
| * @param[in] pu1_src |
| * UWORD8 pointer to the source |
| * |
| * @param[in] src_strd |
| * integer source stride |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array (each colour component) |
| * |
| * @param[in] pad_size |
| * integer -padding size of the array |
| * |
| * @param[in] ht |
| * integer height of the array |
| * |
| * @param[in] wd |
| * integer width of the array |
| * |
| * @returns |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| void ihevc_pad_right_chroma(UWORD8 *pu1_src, |
| WORD32 src_strd, |
| WORD32 ht, |
| WORD32 pad_size) |
| { |
| WORD32 row; |
| WORD32 col; |
| UWORD16 *pu2_src = (UWORD16 *)pu1_src; |
| |
| src_strd >>= 1; |
| pad_size >>= 1; |
| |
| for(row = 0; row < ht; row++) |
| { |
| UWORD16 u2_uv_val; |
| |
| u2_uv_val = pu2_src[-1]; |
| for(col = 0; col < pad_size; col++) |
| pu2_src[col] = u2_uv_val; |
| |
| pu2_src += src_strd; |
| } |
| } |
| |