318 lines
7.6 KiB
C
318 lines
7.6 KiB
C
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/******************************************************************************
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*
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* Copyright (C) 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*****************************************************************************
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* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
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*/
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/**
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*******************************************************************************
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* @file
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* isvc_mem_fns.c
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*
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* @brief
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* Functions used for memory operations
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*
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* @author
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* Ittiam
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*
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* @par List of Functions:
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* isvc_memcpy()
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* isvc_memcpy_mul_8()
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* isvc_memset()
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* isvc_memset_mul_8()
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* isvc_memset_16bit()
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* isvc_memset_16bit_mul_8()
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* isvc_memory_alloc()
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* isvc_memory_free()
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*
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* @remarks
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* None
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*
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******************************************************************************
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*/
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/*****************************************************************************/
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/* File Includes */
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/*****************************************************************************/
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/* System include files */
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#include <stdio.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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/* User include files */
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#include "ih264_typedefs.h"
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#include "isvc_mem_fns.h"
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/**
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********************************************************************************
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* @brief copies a 2d blk from one location to another
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*
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* @param[out] pu1_dst : dst pointer
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*
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* @param[in] i4_dst_stride: stride of destination
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*
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* @param[in] pu1_src : src ptr
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*
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* @param[in] i4_src_stride: stride of src
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*
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* @param[in] i4_blk_wd : blk width
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*
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* @param[in] i4_blk_ht : blk height
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*
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* @return void
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********************************************************************************
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*/
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void isvc_copy_2d(UWORD8 *pu1_dst, WORD32 i4_dst_stride, UWORD8 *pu1_src, WORD32 i4_src_stride,
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WORD32 i4_blk_wd, WORD32 i4_blk_ht)
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{
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WORD32 i;
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for(i = 0; i < i4_blk_ht; i++)
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{
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memmove(pu1_dst, pu1_src, i4_blk_wd * sizeof(pu1_dst[0]));
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pu1_dst += i4_dst_stride;
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pu1_src += i4_src_stride;
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}
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}
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/**
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********************************************************************************
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* @brief memsets a 2d blk
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*
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* @param[out] pu1_dst : dst pointer
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*
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* @param[in] i4_dst_stride: stride of destination
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*
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* @param[in] i4_blk_wd : blk width
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*
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* @param[in] i4_blk_ht : blk height
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*
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* @return void
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********************************************************************************
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*/
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void isvc_memset_2d(UWORD8 *pu1_dst, WORD32 i4_dst_stride, UWORD8 u1_val, WORD32 i4_blk_wd,
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WORD32 i4_blk_ht)
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{
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WORD32 i;
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for(i = 0; i < i4_blk_ht; i++)
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{
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memset(pu1_dst, u1_val, i4_blk_wd);
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pu1_dst += i4_dst_stride;
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}
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}
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/**
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*******************************************************************************
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*
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* @brief
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* Function for copying to an interleaved destination
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*
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* @par Description:
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* Copies the array of width 'wd' and height 'ht' from the location pointed
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* by 'src' to the location pointed by 'dst'
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*
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* @param[in] pu1_src
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* UWORD8 pointer to the source
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*
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* @param[out] pu1_dst
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* UWORD8 pointer to the destination
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*
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* @param[in] src_strd
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* integer source stride
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*
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* @param[in] dst_strd
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* integer destination stride
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*
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* @param[in] ht
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* integer height of the array
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*
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* @param[in] wd
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* integer width of the array
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*
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* @returns
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*
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* @remarks
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* The alternate elements of src will be copied to alternate locations in dsr
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* Other locations are not touched
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*
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*******************************************************************************
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*/
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void isvc_interleaved_copy(UWORD8 *pu1_src, UWORD8 *pu1_dst, WORD32 src_strd, WORD32 dst_strd,
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WORD32 ht, WORD32 wd)
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{
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WORD32 row, col;
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wd *= 2;
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for(row = 0; row < ht; row++)
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{
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for(col = 0; col < wd; col += 2)
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{
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pu1_dst[col] = pu1_src[col];
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}
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pu1_src += src_strd;
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pu1_dst += dst_strd;
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}
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}
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/**
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*******************************************************************************
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*
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* @brief
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* Function for copying to an interleaved destination
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*
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* @par Description:
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* Copies the array of width 'wd' and height 'ht' from the location pointed
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* by 'src' to the location pointed by 'dst'
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*
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* @param[in] pu1_src
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* UWORD8 pointer to the source
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*
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* @param[out] pu1_dst
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* UWORD8 pointer to the destination
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*
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* @param[in] src_strd
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* integer source stride
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*
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* @param[in] dst_strd
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* integer destination stride
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*
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* @param[in] ht
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* integer height of the array
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*
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* @param[in] wd
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* integer width of the array
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*
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* @returns
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*
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* @remarks
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* The alternate elements of src will be copied to alternate locations in dsr
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* Other locations are not touched
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*
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*******************************************************************************
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*/
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void isvc_16bit_interleaved_copy(WORD16 *pi2_src, WORD16 *pi2_dst, WORD32 src_strd, WORD32 dst_strd,
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WORD32 ht, WORD32 wd)
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{
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WORD32 row, col;
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wd *= 2;
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for(row = 0; row < ht; row++)
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{
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for(col = 0; col < wd; col += 2)
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{
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pi2_dst[col] = pi2_src[col];
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}
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pi2_src += src_strd;
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pi2_dst += dst_strd;
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}
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}
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/**
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*******************************************************************************
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*
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* @brief
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* Function for memsetting to an interleaved destination
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*
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* @par Description:
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* Memsets the array of width 'wd' and height 'ht' pointed by 'src'
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*
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* @param[in] pu1_src
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* UWORD8 pointer to the source
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*
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* @param[in] src_strd
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* integer source stride
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*
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* @param[in] value
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* Value to set
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*
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* @param[in] ht
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* integer height of the array
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*
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* @param[in] wd
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* integer width of the array
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*
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* @returns
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*
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* @remarks
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* The alternate elements of src will be copied to alternate locations in dsr
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* Other locations are not touched
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*
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*******************************************************************************
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*/
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void isvc_16bit_interleaved_memset(WORD16 *pi2_src, WORD32 i4_src_strd, WORD16 i2_value,
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WORD32 i4_wd, WORD32 i4_ht)
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{
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WORD32 row, col;
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i4_wd *= 2;
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for(row = 0; row < i4_ht; row++)
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{
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for(col = 0; col < i4_wd; col += 2)
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{
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pi2_src[col] = i2_value;
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}
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pi2_src += i4_src_strd;
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}
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}
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/**
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*******************************************************************************
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*
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* @brief
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* Checks if any pixel in a block is non-zero
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*
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* @param[in] pu1_data
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* UWORD8 pointer to the block to be checked
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*
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* @param[in] i4_data_strd
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* Stride of data buffer
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*
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* @param[in] u4_wd
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* Width of the block
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*
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* @param[in] u4_ht
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* Height of the block
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*
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*******************************************************************************
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*/
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UWORD8 isvc_is_nonzero_blk(UWORD8 *pu1_data, WORD32 i4_data_strd, UWORD32 u4_wd, UWORD32 u4_ht)
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{
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UWORD32 i, j;
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for(i = 0; i < u4_ht; i++)
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{
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for(j = 0; j < u4_wd; j++)
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{
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if(pu1_data[j + i * i4_data_strd])
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{
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return 1;
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}
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}
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}
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return 0;
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}
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