/*
 * 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: NV11_Load_4x8.asm
//----------------------------------------------------------------

#define  NV11_LOAD_4x8
#include "PL2_Load.inc"

// Load 16x8 NV11 Y ------------------------------------------------------------
    add  (2) rMSGSRC.0<1>:d     wORIX<2;2,1>:w    wSRC_H_ORI_OFFSET<2;2,1>:w       // Source Y Block origin
#if !defined(LOAD_UV_ONLY)
    mov  (1) rMSGSRC.2<1>:ud    nDPR_BLOCK_SIZE_Y:ud                               // Y block width and height (16x8)
    mov  (8) mMSGHDRY<1>:ud     rMSGSRC<8;8,1>:ud
    send (8) udSRC_Y(0)<1>      mMSGHDRY    udDUMMY_NULL    nDATAPORT_READ    nDPMR_MSGDSC+nDPR_MSG_SIZE_Y+nBI_CURRENT_SRC_Y:ud
#endif

// Load 8x8 NV11 UV ----------------------------------------------------------
    asr (1)  rMSGSRC.0<1>:d     rMSGSRC.0<0;1,0>:d       1:w   // U/V block origin should be half of Y's
    mov (1)  rMSGSRC.2<1>:ud    nDPR_BLOCK_SIZE_UV:ud          // U/V block width and height (8x8)
    mov  (8) mMSGHDRU<1>:ud     rMSGSRC<8;8,1>:ud
    send (8) udSRC_U(0)<1>      mMSGHDRU    udDUMMY_NULL    nDATAPORT_READ    nDPMR_MSGDSC+nDPR_MSG_SIZE_UV+nBI_CURRENT_SRC_UV:ud

// Convert to word-aligned format ----------------------------------------------
#if !defined(LOAD_UV_ONLY)
    $for (nY_NUM_OF_ROWS-1; >-1; -1) {
        mov (16)  uwDEST_Y(0,%1*16)<1>      ubSRC_Y(0,%1*16)
    }
#endif
    $for (nUV_NUM_OF_ROWS/4-1; >-1; -1) {
        mov (16)  uwDEST_U(0,%1*16)<1>      ubSRC_U(0,%1*32)<32;16,2>
        mov (16)  uwDEST_V(0,%1*16)<1>      ubSRC_U(0,%1*32+1)<32;16,2>
    }

// End of NV11_Load_4x8
