/*
* All Video Processing kernels
* Copyright © <2010>, Intel Corporation.
*
* This program is licensed under the terms and conditions of the
* Eclipse Public License (EPL), version 1.0. The full text of the EPL is at
* http://www.opensource.org/licenses/eclipse-1.0.php.
*
*/
shl (1) rMSGSRC.0<1>:ud wORIX<0;1,0>:w 1:w NODDCLR // H. block origin need to be doubled
mov (1) rMSGSRC.1<1>:ud wORIY<0;1,0>:w NODDCLR_NODDCHK // Block origin
mov (1) rMSGSRC.2<1>:ud nDPW_BLOCK_SIZE_DI:ud NODDCHK // Block width and height (32x8)
add (4) pCF_Y_OFFSET<1>:uw ubDEST_CF_OFFSET<4;4,1>:ub nDEST_YUV_REG*nGRFWIB:w // Initial Y,U,V offset in YUV422 block
// Pack 2nd field Y
$for(0; <nY_NUM_OF_ROWS; 1) {
mov (16) r[pCF_Y_OFFSET, %1*nGRFWIB]<2> ubRESP(nDI_PREV_FRAME_LUMA_OFFSET,%1*16)
}
// Pack 1st field Y
$for(0; <nY_NUM_OF_ROWS; 1) {
mov (16) r[pCF_Y_OFFSET, %1+4*nGRFWIB]<2> ubRESP(nDI_CURR_FRAME_LUMA_OFFSET,%1*16)
}
// Pack 2nd field U
$for(0; <nUV_NUM_OF_ROWS; 1) {
mov (8) r[pCF_U_OFFSET, %1*nGRFWIB]<4> ubRESP(nDI_PREV_FRAME_CHROMA_OFFSET,%1*16+1)<16;8,2> //U pixels
}
// Pack 1st field U
$for(0; <nUV_NUM_OF_ROWS; 1) {
mov (8) r[pCF_U_OFFSET, %1+4*nGRFWIB]<4> ubRESP(nDI_CURR_FRAME_CHROMA_OFFSET,%1*16+1)<16;8,2> //U pixels
}
// Pack 2nd field V
$for(0; <nUV_NUM_OF_ROWS; 1) {
mov (8) r[pCF_V_OFFSET, %1*nGRFWIB]<4> ubRESP(nDI_PREV_FRAME_CHROMA_OFFSET,%1*16)<16;8,2> //Vpixels
}
// Packs1st field V
$for(0; <nUV_NUM_OF_ROWS; 1) {
mov (8) r[pCF_V_OFFSET, %1+4*nGRFWIB]<4> ubRESP(nDI_CURR_FRAME_CHROMA_OFFSET,%1*16)<16;8,2> //Vpixels
}
//save the previous frame
mov (8) mMSGHDR<1>:ud rMSGSRC<8;8,1>:ud
$for(0; <4; 1) {
mov (8) mudMSGPAYLOAD(%1)<1> udDEST_YUV(%1)REGION(8,1)
}
send (8) dNULLREG mMSGHDR udDUMMY_NULL nDATAPORT_WRITE nDPMW_MSGDSC+nDPW_MSG_SIZE_DI+nBI_DESTINATION_1_YUV:ud
//save the current frame
mov (8) mMSGHDR<1>:ud rMSGSRC<8;8,1>:ud
$for(0; <4; 1) {
mov (8) mudMSGPAYLOAD(%1)<1> udDEST_YUV(%1+4)REGION(8,1)
}
send (8) dNULLREG mMSGHDR udDUMMY_NULL nDATAPORT_WRITE nDPMW_MSGDSC+nDPW_MSG_SIZE_DI+nBI_DESTINATION_2_YUV:ud