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/*
* 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: save_Left_UV_8x2T.asm
//
// Transpose 8x2 to 2x8 UV data and write to memory
//
//----------------------------------------------------------------
// Symbols need to be defined before including this module
//
// Left MB region:
// PREV_MB_UW: Base=ryy ElementSize=2 SrcRegion=REGION(8,1) Type=uw
// Binding table index:
// BI_SRC_UV: Binding table index of UV surface (NV12)
//
// Temp buffer:
// BUF_W: BUF_W Base=rxx ElementSize=1 SrcRegion=REGION(8,1) Type=uw
//
//
#if defined(_DEBUG)
mov (1) EntrySignatureC:w 0xDDD6:w
#endif
#if defined(_FIELD)
and.nz.f0.1 (1) NULLREGW BitFields:w BotFieldFlag:w // Get bottom field flag
#endif
// Transpose U/V, save them to MRFs in NV12 format
mov (1) MSGSRC.0:ud ORIX_LEFT:w { NoDDClr } // Block origin
asr (1) MSGSRC.1:ud ORIY_LEFT:w 1:w { NoDDClr, NoDDChk } // NV12 U+V block origin y = half of Y comp
mov (1) MSGSRC.2:ud 0x00070003:ud { NoDDChk } // NV12 U+V block width and height (4x8)
// 16x2 UV src in GRF (each pix is specified as yx)
// +-----------------------+-----------------------+-----------------------+-----------------------+
// |71 71 61 61 51 51 41 41 31 31 21 21 11 11 01 01 70 70 60 60 50 50 40 40 30 30 20 20 10 10 00 00|
// +-----------------------+-----------------------+-----------------------+-----------------------+
//
// First step (8) <1> <=== <8;4,1>:w
// +-----------------------+-----------------------+-----------------------+-----------------------+
// |71 71 61 61 51 51 41 41 70 70 60 60 50 50 40 40 31 31 21 21 11 11 01 01 30 30 20 20 10 10 00 00|
// +-----------------------+-----------------------+-----------------------+-----------------------+
mov (8) LEFT_TEMP_W(0,0)<1> PREV_MB_UW(0,0)<8;4,1> { NoDDClr }
mov (8) LEFT_TEMP_W(0,8)<1> PREV_MB_UW(0,4)<8;4,1> { NoDDChk }
// Second step (8) <1> <=== <1;2,4>
// +-----------------------+-----------------------+-----------------------+-----------------------+
// |71 71 70 70 61 61 60 60 51 51 50 50 41 41 40 40 31 31 30 30 21 21 20 20 11 11 10 10 01 01 00 00|
// +-----------------------+-----------------------+-----------------------+-----------------------+
mov (8) MSGPAYLOADW(0,0)<1> LEFT_TEMP_W(0,0)<1;2,4>
mov (8) MSGPAYLOADW(0,8)<1> LEFT_TEMP_W(0,8)<1;2,4>
// Transposed U+V in NV12 in 4x8 is ready for writting to dataport.
#if defined(_PROGRESSIVE)
mov (1) MSGDSC MSG_LEN(1)+DWBWMSGDSC+BI_DEST_UV:ud
// send (8) NULLREG MSGHDR MSGSRC<8;8,1>:ud DWBWMSGDSC+0x00100000+BI_DEST_UV
#endif
#if defined(_FIELD)
// Field picture
(f0.1) mov (1) MSGDSC MSG_LEN(1)+DWBWMSGDSC+ENMSGDSCBF+BI_DEST_UV:ud // Write 1 GRF to DEST_UV bottom field
(-f0.1) mov (1) MSGDSC MSG_LEN(1)+DWBWMSGDSC+ENMSGDSCTF+BI_DEST_UV:ud // Write 1 GRF to DEST_UV top field
#endif
send (8) null:ud MSGHDR MSGSRC<8;8,1>:ud DAPWRITE MSGDSC
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