/*
 * All Video Processing kernels 
 * Copyright © <2010>, Intel Corporation.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * This file was originally licensed under the following license
 *
 *  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.
 *
 */

// 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
