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402 lines
17 KiB
402 lines
17 KiB
/******************************************************************************
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*
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* Copyright (C) 2015 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 Name : impeg2_format_conv .c */
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/* */
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/* Description : Contains functions needed to convert the images in */
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/* different color spaces to yuv 422i color space */
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/* */
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/* List of Functions : YUV420toYUV420() */
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/* YUV420toYUV422I() */
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/* YUV420toYUV420SP_VU() */
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/* YUV420toYUV420SP_UU() */
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/* */
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/* Issues / Problems : None */
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/* */
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/* Revision History : */
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/* */
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/* DD MM YYYY Author(s) Changes (Describe the changes made) */
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/* 28 08 2007 Naveen Kumar T Draft */
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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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/* User include files */
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#include <stdio.h>
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#include <string.h>
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#include "iv_datatypedef.h"
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#include "iv.h"
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#include "ithread.h"
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#include "iv_datatypedef.h"
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#include "impeg2_macros.h"
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#include "impeg2_buf_mgr.h"
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#include "impeg2_disp_mgr.h"
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#include "impeg2_defs.h"
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#include "impeg2_platform_macros.h"
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#include "impeg2_job_queue.h"
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#include "impeg2_format_conv.h"
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/*****************************************************************************/
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/* */
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/* Function Name : impeg2_copy_frm_yuv420p() */
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/* */
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/* Description : This function performs conversion from YUV420 to */
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/* YUV422I color space. */
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/* */
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/* Inputs : pu1_src_y, - UWORD8 pointer to source y plane. */
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/* pu1_src_u, - UWORD8 pointer to source u plane. */
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/* pu1_src_v, - UWORD8 pointer to source v plane. */
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/* pu1_dst_y, - UWORD8 pointer to dest y plane. */
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/* pu1_dst_u, - UWORD8 pointer to dest u plane. */
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/* pu1_dst_v, - UWORD8 pointer to dest v plane. */
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/* u4_width, - Width of image. */
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/* u4_height, - Height of image. */
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/* u4_src_stride_y - Stride in pixels of source Y plane. */
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/* u4_src_stride_u - Stride in pixels of source U plane. */
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/* u4_src_stride_v - Stride in pixels of source V plane. */
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/* u4_dst_stride_y - Stride in pixels of dest Y plane. */
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/* u4_dst_stride_u - Stride in pixels of dest U plane. */
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/* u4_dst_stride_v - Stride in pixels of dest V plane. */
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/* */
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/* Globals : None */
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/* */
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/* Processing : One row is processed at a time. The one iteration of the */
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/* code will rearrange pixels into YUV422 interleaved */
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/* format. */
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/* */
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/* Outputs : None */
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/* */
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/* Returns : None */
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/* */
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/* Issues : None */
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/* */
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/* Revision History: */
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/* */
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/* DD MM YYYY Author(s) Changes (Describe the changes made) */
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/* 29 08 2007 Naveen Kumar T Draft */
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/* */
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/*****************************************************************************/
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void impeg2_copy_frm_yuv420p(UWORD8 *pu1_src_y,
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UWORD8 *pu1_src_u,
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UWORD8 *pu1_src_v,
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UWORD8 *pu1_dst_y,
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UWORD8 *pu1_dst_u,
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UWORD8 *pu1_dst_v,
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UWORD32 u4_width,
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UWORD32 u4_height,
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UWORD32 u4_src_stride_y,
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UWORD32 u4_src_stride_u,
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UWORD32 u4_src_stride_v,
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UWORD32 u4_dst_stride_y,
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UWORD32 u4_dst_stride_u,
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UWORD32 u4_dst_stride_v)
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{
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WORD32 i4_cnt;
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WORD32 i4_y_height = (WORD32) u4_height;
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WORD32 i4_uv_height = u4_height >> 1;
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WORD32 i4_uv_width = u4_width >> 1;
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for(i4_cnt = 0; i4_cnt < i4_y_height; i4_cnt++)
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{
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memcpy(pu1_dst_y, pu1_src_y, u4_width);
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pu1_dst_y += (u4_dst_stride_y);
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pu1_src_y += (u4_src_stride_y);
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}
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for(i4_cnt = 0; i4_cnt < i4_uv_height; i4_cnt++)
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{
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memcpy(pu1_dst_u, pu1_src_u, i4_uv_width);
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pu1_dst_u += (u4_dst_stride_u);
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pu1_src_u += (u4_src_stride_u);
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}
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for(i4_cnt = 0; i4_cnt < i4_uv_height; i4_cnt++)
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{
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memcpy(pu1_dst_v, pu1_src_v, i4_uv_width);
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pu1_dst_v += (u4_dst_stride_v);
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pu1_src_v += (u4_src_stride_v);
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}
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}
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/*****************************************************************************/
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/* */
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/* Function Name : impeg2_fmt_conv_yuv420p_to_yuv422ile() */
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/* */
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/* Description : This function performs conversion from YUV420 to */
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/* YUV422I color space. */
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/* */
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/* Inputs : pu1_y - UWORD8 pointer to y plane. */
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/* pu1_u - UWORD8 pointer to u plane. */
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/* pu1_v - UWORD8 pointer to u plane. */
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/* pu2_yuv422i - UWORD16 pointer to yuv422iimage. */
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/* u4_width - Width of the Y plane. */
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/* u4_height - Height of the Y plane. */
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/* u4_stride_y - Stride in pixels of Y plane. */
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/* u4_stride_u - Stride in pixels of U plane. */
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/* u4_stride_v - Stride in pixels of V plane. */
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/* u4_stride_yuv422i- Stride in pixels of yuv422i image. */
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/* */
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/* Globals : None */
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/* */
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/* Processing : One row is processed at a time. The one iteration of the */
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/* code will rearrange pixels into YUV422 interleaved */
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/* format. */
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/* */
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/* Outputs : None */
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/* */
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/* Returns : None */
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/* */
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/* Issues : None */
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/* */
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/* Revision History: */
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/* */
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/* DD MM YYYY Author(s) Changes (Describe the changes made) */
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/* 29 08 2007 Naveen Kumar T Draft */
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/* */
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/*****************************************************************************/
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void impeg2_fmt_conv_yuv420p_to_yuv422ile(register UWORD8 *pu1_y,
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register UWORD8 *pu1_u,
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register UWORD8 *pu1_v,
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void *pv_yuv422i,
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UWORD32 u4_width,
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UWORD32 u4_height,
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UWORD32 u4_stride_y,
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UWORD32 u4_stride_u,
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UWORD32 u4_stride_v,
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UWORD32 u4_stride_yuv422i)
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{
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/* Declare local variables */
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register WORD16 i,j;
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register UWORD16 u2_offset1,u2_offset2,u2_offset3,u2_offset_yuv422i;
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register UWORD8 u1_y1,u1_uv;
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register UWORD32 u4_pixel;
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register UWORD16 u2_width_cnt;
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register UWORD32 *pu4_yuv422i;
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UWORD8 u1_flag; /* This flag is used to indicate wether the row is even or odd */
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u1_flag=0x0; /* Intialize it with 0 indicating odd row */
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/* Calculate the offsets necessary to make input and output buffers to point next row */
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u2_offset1 = u4_stride_y - u4_width;
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u2_offset2 = u4_stride_u - ((u4_width + 1) >> 1);
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u2_offset3 = u4_stride_v - ((u4_width + 1) >> 1);
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u2_offset_yuv422i = (u4_stride_yuv422i >> 1) -((u4_width + 1) >> 1);
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/* Type cast the output pointer to UWORD32 */
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pu4_yuv422i = (UWORD32 *)pv_yuv422i;
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/* Calculate the loop counter for inner loop */
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u2_width_cnt = u4_width >> 1;
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/* Run the loop for height of input buffer */
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for(i = u4_height; i > 0; i--)
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{
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/* Run the loop for width/2 */
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for(j = u2_width_cnt; j > 0; j--)
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{
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/* Store the value in output buffer in the order U0Y0V0Y1U2Y2V2Y3.... */
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/* Load Y0 */
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u1_y1 = *pu1_y++;
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/* Load Y1 */
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u4_pixel = *pu1_y++;
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/* Load V0 */
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u1_uv = *pu1_v++;
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u4_pixel = (u4_pixel << 8) + u1_uv;
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/* Load U0 */
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u1_uv = *pu1_u++;
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u4_pixel = (u4_pixel << 8) + u1_y1;
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u4_pixel = (u4_pixel << 8) + u1_uv;
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*pu4_yuv422i++ = u4_pixel;
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}
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/* Incase of width is odd number take care of last pixel */
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if(u4_width & 0x1)
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{
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/* Store the value in output buffer in the order U0Y0V0Y1U2Y2V2Y3.... */
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/* Load Y0 */
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u1_y1 = *pu1_y++;
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/* Load V0 */
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u1_uv = *pu1_v++;
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/* Take Y0 as Y1 */
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u4_pixel = u1_y1;
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u4_pixel = (u4_pixel << 8) + u1_uv;
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/* Load U0 */
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u1_uv = *pu1_u++;
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u4_pixel = (u4_pixel << 8) + u1_y1;
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u4_pixel = (u4_pixel << 8) + u1_uv;
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*pu4_yuv422i++ = u4_pixel;
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}
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/* Make the pointers to buffer to point to next row */
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pu1_y = pu1_y + u2_offset1;
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if(!u1_flag)
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{
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/* Restore the pointers of u and v buffer back so that the row of pixels are also */
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/* Processed with same row of u and values again */
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pu1_u = pu1_u - ((u4_width + 1) >> 1);
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pu1_v = pu1_v - ((u4_width + 1) >> 1);
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}
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else
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{
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/* Adjust the u and v buffer pointers so that they will point to next row */
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pu1_u = pu1_u + u2_offset2;
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pu1_v = pu1_v + u2_offset3;
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}
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/* Adjust the output buffer pointer for next row */
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pu4_yuv422i = pu4_yuv422i + u2_offset_yuv422i;
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/* Toggle the flag to convert between odd and even row */
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u1_flag= u1_flag ^ 0x1;
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}
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}
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void impeg2_fmt_conv_yuv420p_to_yuv420sp_vu(UWORD8 *pu1_y, UWORD8 *pu1_u, UWORD8 *pu1_v,
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UWORD8 *pu1_dest_y, UWORD8 *pu1_dest_uv,
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UWORD32 u4_height, UWORD32 u4_width,UWORD32 u4_stridey,
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UWORD32 u4_strideu, UWORD32 u4_stridev,
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UWORD32 u4_dest_stride_y, UWORD32 u4_dest_stride_uv,
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UWORD32 u4_convert_uv_only
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)
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{
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UWORD8 *pu1_src,*pu1_dst;
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UWORD8 *pu1_src_u, *pu1_src_v;
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UWORD16 i;
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UWORD32 u2_width_uv;
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UWORD32 u4_dest_inc_y=0, u4_dest_inc_uv=0;
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/* Copy Y buffer */
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pu1_dst = (UWORD8 *)pu1_dest_y;
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pu1_src = (UWORD8 *)pu1_y;
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u4_dest_inc_y = u4_dest_stride_y;
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u4_dest_inc_uv = u4_dest_stride_uv;
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if(0 == u4_convert_uv_only)
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{
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for(i = 0; i < u4_height; i++)
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{
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memcpy((void *)pu1_dst,(void *)pu1_src, u4_width);
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pu1_dst += u4_dest_inc_y;
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pu1_src += u4_stridey;
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}
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}
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/* Interleave Cb and Cr buffers */
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pu1_src_u = pu1_u;
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pu1_src_v = pu1_v;
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pu1_dst = pu1_dest_uv ;
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u4_width = ((u4_width + 1) >> 1) << 1;
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u4_height = (u4_height + 1) >> 1;
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u2_width_uv = (u4_width + 1) >> 1;
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for(i = 0; i < u4_height ; i++)
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{
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UWORD32 j;
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for(j = 0; j < u2_width_uv; j++)
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{
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*pu1_dst++ = *pu1_src_v++;
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*pu1_dst++ = *pu1_src_u++;
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}
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pu1_dst += u4_dest_inc_uv - u4_width;
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pu1_src_u += u4_strideu - u2_width_uv;
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pu1_src_v += u4_stridev - u2_width_uv;
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}
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}
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void impeg2_fmt_conv_yuv420p_to_yuv420sp_uv(UWORD8 *pu1_y, UWORD8 *pu1_u, UWORD8 *pu1_v,
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UWORD8 *pu1_dest_y, UWORD8 *pu1_dest_uv,
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UWORD32 u4_height, UWORD32 u4_width,UWORD32 u4_stridey,
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UWORD32 u4_strideu, UWORD32 u4_stridev,
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UWORD32 u4_dest_stride_y, UWORD32 u4_dest_stride_uv,
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UWORD32 u4_convert_uv_only)
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{
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UWORD8 *pu1_src,*pu1_dst;
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UWORD8 *pu1_src_u, *pu1_src_v;
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UWORD16 i;
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UWORD32 u2_width_uv;
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UWORD32 u4_dest_inc_y=0, u4_dest_inc_uv=0;
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/* Copy Y buffer */
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pu1_dst = (UWORD8 *)pu1_dest_y;
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pu1_src = (UWORD8 *)pu1_y;
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u4_dest_inc_y = u4_dest_stride_y;
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u4_dest_inc_uv = u4_dest_stride_uv;
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if(0 == u4_convert_uv_only)
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{
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for(i = 0; i < u4_height; i++)
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{
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memcpy((void *)pu1_dst,(void *)pu1_src, u4_width);
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pu1_dst += u4_dest_inc_y;
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pu1_src += u4_stridey;
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}
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}
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/* Interleave Cb and Cr buffers */
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pu1_src_u = pu1_u;
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pu1_src_v = pu1_v;
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pu1_dst = pu1_dest_uv ;
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u4_width = ((u4_width + 1) >> 1) << 1;
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u4_height = (u4_height + 1) >> 1;
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u2_width_uv = (u4_width + 1) >> 1;
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for(i = 0; i < u4_height ; i++)
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{
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UWORD32 j;
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for(j = 0; j < u2_width_uv; j++)
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{
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*pu1_dst++ = *pu1_src_u++;
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*pu1_dst++ = *pu1_src_v++;
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}
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pu1_dst += u4_dest_inc_uv - u4_width;
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pu1_src_u += u4_strideu - u2_width_uv;
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pu1_src_v += u4_stridev - u2_width_uv;
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}
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}
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