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