| /****************************************************************************** |
| * |
| * 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 <stdio.h> |
| #include <string.h> |
| #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_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_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; |
| } |
| |
| } |
| |
| |
