/*
 * 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: saveNV12_16x4.asm
//
// Save a NV12 16x4 block 
//
//----------------------------------------------------------------
//  Symbols need to be defined before including this module
//
//	Source region in :ud
//	SRC_YD:			SRC_YD Base=rxx ElementSize=4 SrcRegion=REGION(8,1) Type=ud			// 2 GRFs
//	SRC_UD:			SRC_UD Base=rxx ElementSize=4 SrcRegion=REGION(8,1) Type=ud			// 1 GRF
//
//	Binding table index: 
//	BI_DEST_Y:		Binding table index of Y surface
//	BI_DEST_UV:		Binding table index of UV surface (NV12)
//
//----------------------------------------------------------------

#if defined(_DEBUG) 
	mov		(1)		EntrySignatureC:w			0xDDD5:w
#endif

    mov (2)	MSGSRC.0<1>:ud	ORIX_TOP<2;2,1>:w							// Block origin
    mov (1)	MSGSRC.2<1>:ud	0x0003000F:ud								// Block width and height (16x4)

	// Pack Y    
	mov	(16)	MSGPAYLOADD(0)<1>		SRC_YD(0)						// Compressed inst
    
    send (8)	NULLREG	MSGHDR	MSGSRC<8;8,1>:ud	DAPWRITE	MSG_LEN(2)+DWBWMSGDSC+BI_DEST_Y		// Write 2 GRFs


    asr (1)	MSGSRC.1:ud		MSGSRC.1:ud			1:w						// NV12 U+V block origin y = half of Y comp
    mov (1)	MSGSRC.2<1>:ud	0x0001000F:ud								// NV12 U+V block width and height (16x2)

	// Pack U and V
//	mov (16)	MSGPAYLOADB(0,0)<2>		SRC_UB(0,0)
//	mov (16)	MSGPAYLOADB(0,1)<2>		SRC_VB(0,0)
	
	mov (8)	MSGPAYLOADD(0,0)<1>		SRC_UD(0)	
	
    send (8)	NULLREG	MSGHDR	MSGSRC<8;8,1>:ud	DAPWRITE	MSG_LEN(1)+DWBWMSGDSC+BI_DEST_UV	// Write 1 GRF

// End of saveNV12_16x4.asm
