mirror of
https://github.com/cemu-project/Cemu.git
synced 2024-12-01 13:34:18 +01:00
332 lines
7.5 KiB
C
332 lines
7.5 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_padding.c
|
|
*
|
|
* @brief
|
|
* Contains function definitions for Padding
|
|
*
|
|
* @author
|
|
* Ittiam
|
|
*
|
|
* @par List of Functions:
|
|
* - ih264_pad_top()
|
|
* - ih264_pad_bottom()
|
|
* - ih264_pad_left_luma()
|
|
* - ih264_pad_left_chroma()
|
|
* - ih264_pad_right_luma()
|
|
* - ih264_pad_right_chroma()
|
|
*
|
|
* @remarks
|
|
* None
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
|
|
/*****************************************************************************/
|
|
/* File Includes */
|
|
/*****************************************************************************/
|
|
|
|
/* System include files */
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
|
|
/* User include files */
|
|
#include "ih264_typedefs.h"
|
|
#include "ih264_macros.h"
|
|
#include "ih264_padding.h"
|
|
|
|
|
|
/*****************************************************************************/
|
|
/* Function Definitions */
|
|
/*****************************************************************************/
|
|
|
|
/**
|
|
*******************************************************************************
|
|
*
|
|
* @brief pad 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] wd
|
|
* integer width of the array
|
|
*
|
|
* @param[in] pad_size
|
|
* integer -padding size of the array
|
|
*
|
|
* @returns none
|
|
*
|
|
* @remarks none
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
void ih264_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 pad 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] wd
|
|
* integer width of the array
|
|
*
|
|
* @param[in] pad_size
|
|
* integer -padding size of the array
|
|
*
|
|
* @returns none
|
|
*
|
|
* @remarks none
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
void ih264_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 pad (luma block) at the left of a 2d array
|
|
*
|
|
* @par Description:
|
|
* The left column of a 2d array is replicated for pad_size times to 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] pad_size
|
|
* integer -padding size of the array
|
|
*
|
|
* @returns none
|
|
*
|
|
* @remarks none
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
void ih264_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 pad (chroma block) at the left of a 2d array
|
|
*
|
|
* @par Description:
|
|
* The left column of a 2d array is replicated for pad_size times to 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] pad_size
|
|
* integer -padding size of the array
|
|
*
|
|
* @returns none
|
|
*
|
|
* @remarks none
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
void ih264_pad_left_chroma(UWORD8 *pu1_src,
|
|
WORD32 src_strd,
|
|
WORD32 ht,
|
|
WORD32 pad_size)
|
|
{
|
|
/* temp var */
|
|
WORD32 row, col;
|
|
UWORD16 u2_uv_val;
|
|
|
|
/* pointer to src */
|
|
UWORD16 *pu2_src = (UWORD16 *)pu1_src;
|
|
|
|
src_strd >>= 1;
|
|
pad_size >>= 1;
|
|
|
|
for(row = 0; row < ht; row++)
|
|
{
|
|
u2_uv_val = pu2_src[0];
|
|
|
|
for (col = -pad_size; col < 0; col++)
|
|
{
|
|
pu2_src[col] = u2_uv_val;
|
|
}
|
|
|
|
pu2_src += src_strd;
|
|
}
|
|
}
|
|
|
|
/**
|
|
*******************************************************************************
|
|
*
|
|
* @brief pad (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] pad_size
|
|
* integer -padding size of the array
|
|
*
|
|
* @returns none
|
|
*
|
|
* @remarks none
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
void ih264_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 pad (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] pad_size
|
|
* integer -padding size of the array
|
|
*
|
|
* @returns none
|
|
*
|
|
* @remarks none
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
void ih264_pad_right_chroma(UWORD8 *pu1_src,
|
|
WORD32 src_strd,
|
|
WORD32 ht,
|
|
WORD32 pad_size)
|
|
{
|
|
WORD32 row, col;
|
|
UWORD16 u2_uv_val;
|
|
UWORD16 *pu2_src = (UWORD16 *)pu1_src;
|
|
|
|
src_strd >>= 1;
|
|
pad_size >>= 1;
|
|
|
|
for(row = 0; row < ht; row++)
|
|
{
|
|
u2_uv_val = pu2_src[-1];
|
|
|
|
for (col = 0; col < pad_size; col++)
|
|
{
|
|
pu2_src[col] = u2_uv_val;
|
|
}
|
|
|
|
pu2_src += src_strd;
|
|
}
|
|
}
|
|
|