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/*
* 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.
*
*/
// Module name: PL8x4_Save_IMC3.asm
//
// Save planar YUV420 frame data block of size 16x8
#include "PL8x4_Save_IMC3.inc"
//Use the mask to determine which pixels shouldn't be over-written
and (1) acc0.0<1>:ud udBLOCK_MASK<0;1,0>:ud 0x00FFFFFF:ud
cmp.ge.f0.0(1) dNULLREG acc0.0<0;1,0>:ud 0x00FFFFFF:ud //Check if all pixels in the block need to be modified
(f0.0) jmpi WritePlanarToDataPort
//If mask is not all 1's, then load the entire 16x8 block
//so that only those bytes may be modified that need to be (using the mask)
// Load 16x8 planar Y ----------------------------------------------------------
mov (2) rMSGSRC.0<1>:d wORIX<2;2,1>:w // Block origin
mov (1) rMSGSRC.2<1>:ud nDPW_BLOCK_SIZE_Y:ud // Block width and height (16x8)
mov (8) mMSGHDR<1>:ud rMSGSRC<8;8,1>:ud
send (8) udSRC_Y(0)<1> mMSGHDR udDUMMY_NULL nDATAPORT_READ nDPMR_MSGDSC+nDPR_MSG_SIZE_Y+nBI_DESTINATION_Y:ud
// Load 8x4 planar U and V -----------------------------------------------------
asr (2) rMSGSRC.0<1>:d wORIX<2;2,1>:w 1:w // U/V block origin should be half of Y's
mov (1) rMSGSRC.2<1>:ud nDPW_BLOCK_SIZE_UV:ud // Block width and height (8x4)
mov (8) mMSGHDR<1>:ud rMSGSRC<8;8,1>:ud
send (8) udSRC_U(0)<1> mMSGHDR udDUMMY_NULL nDATAPORT_READ nDPMR_MSGDSC+nDPR_MSG_SIZE_UV+nBI_DESTINATION_U:ud
mov (8) mMSGHDR<1>:ud rMSGSRC<8;8,1>:ud
send (8) udSRC_V(0)<1> mMSGHDR udDUMMY_NULL nDATAPORT_READ nDPMR_MSGDSC+nDPR_MSG_SIZE_UV+nBI_DESTINATION_V:ud
//expand U and V to be aligned on word boundary - Y remains in bytes
$for (nUV_NUM_OF_ROWS/2-1; >-1; -1) {
mov (16) uwSRC_U(0, %1*16)<1> ubSRC_U(0, %1*16)
mov (16) uwSRC_V(0, %1*16)<1> ubSRC_V(0, %1*16)
}
//Merge the data
mov (1) f0.0:uw ubBLOCK_MASK_V:ub //Load the mask on flag reg
(f0.0) mov (8) rMASK_TEMP<1>:uw uwBLOCK_MASK_H:uw
(-f0.0) mov (8) rMASK_TEMP<1>:uw 0:uw
// Destination is Word aligned
$for(0; <nY_NUM_OF_ROWS; 2) {
mov (1) f0.1:uw uwMASK_TEMP(0,%1)<0;1,0>
(-f0.1) mov (16) ub2DEST_Y(0, %1*32)<2> ubSRC_Y(0, %1*16)
(-f0.1) mov (16) ub2DEST_U(0, %1*8)<1> ubSRC_U(0, %1*8) //only works for Word aligned Byte data
(-f0.1) mov (16) ub2DEST_V(0, %1*8)<1> ubSRC_V(0, %1*8) //only works for Word aligned Byte data
mov (1) f0.1:uw uwMASK_TEMP(0,1+%1)<0;1,0>
(-f0.1) mov (16) ub2DEST_Y(0, 1+%1*32)<2> ubSRC_Y(0, 1+%1*16)
}
WritePlanarToDataPort:
#if !defined(SAVE_UV_ONLY)
// Save current planar frame Y block data (16x8) -------------------------------
mov (2) rMSGSRC.0<1>:d wORIX<2;2,1>:w // Block origin
mov (1) rMSGSRC.2<1>:ud nDPW_BLOCK_SIZE_Y:ud // Block width and height (16x8)
mov (8) mMSGHDR<1>:ud rMSGSRC<8;8,1>:ud
$for(0,0; <nY_NUM_OF_ROWS; 2,1) {
mov(16) mubMSGPAYLOAD(%2,0)<1> ub2DEST_Y(%1)REGION(16,2)
mov(16) mubMSGPAYLOAD(%2,16)<1> ub2DEST_Y(%1+1)REGION(16,2)
}
send (8) dNULLREG mMSGHDR udDUMMY_NULL nDATAPORT_WRITE nDPMW_MSGDSC+nDPW_MSG_SIZE_Y+nBI_DESTINATION_Y:ud
#endif
// Save U/V data block in planar format (8x4) ----------------------------------
asr (2) rMSGSRC.0<1>:d wORIX<2;2,1>:w 1:w // U/V block origin should be half of Y's
mov (1) rMSGSRC.2<1>:ud nDPW_BLOCK_SIZE_UV:ud // Block width and height (8x4)
mov (8) mMSGHDR<1>:ud rMSGSRC<8;8,1>:ud
// Save U picture data ---------------------------------------------------------
mov (16) mubMSGPAYLOAD(0,0)<1> ub2DEST_U(0)REGION(16,2) // U rows 0,1
mov (16) mubMSGPAYLOAD(0,16)<1> ub2DEST_U(1)REGION(16,2) // U rows 2,3
send (8) dNULLREG mMSGHDR udDUMMY_NULL nDATAPORT_WRITE nDPMW_MSGDSC+nDPW_MSG_SIZE_UV+nBI_DESTINATION_U:ud
mov (8) mMSGHDR<1>:ud rMSGSRC<8;8,1>:ud
// Save V picture data ---------------------------------------------------------
mov (16) mubMSGPAYLOAD(0,0)<1> ub2DEST_V(0)REGION(16,2) // V rows 0,1
mov (16) mubMSGPAYLOAD(0,16)<1> ub2DEST_V(1)REGION(16,2) // V rows 2,3
send (8) dNULLREG mMSGHDR udDUMMY_NULL nDATAPORT_WRITE nDPMW_MSGDSC+nDPW_MSG_SIZE_UV+nBI_DESTINATION_V:ud
// End of PL8x4_Save_IMC3
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