/*
* Load reference 10x5 area for chroma NV12 4x4 MC
* 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.
*
*/
// Kernel name: LoadRef_C_10x5.asm
//
// Load reference 10x5 area for chroma NV12 4x4 MC
//#if !defined(__LOADREF_C_10x5__) // Make sure this is only included once
//#define __LOADREF_C_10x5__
#if 1
// Compute integer and fractional components of MV
asr (2) gMVX_INT<1>:w r[pMV,0]<2;2,1>:w 0x03:w {NoDDClr}
and (2) gMVX_FRACC<1>:w r[pMV,0]<2;2,1>:w 0x07:w {NoDDChk}
// Check whether MVY is integer
or.z.f0.0 (8) null:w gMVY_FRACC<0;1,0>:w 0:w
// Compute top-left corner position to be loaded
mov (2) gMSGSRC.0<1>:d gMVX_INT<2;2,1>:w
shl (1) gMSGSRC.0:d gMSGSRC.0:d 1:w
(f0.0) add (1) pMSGDSC:ud gMSGDSC_R:ud RESP_LEN(2)+nBI_LC_DIFF:ud
(-f0.0) add (1) pMSGDSC:ud gMSGDSC_R:ud RESP_LEN(3)+nBI_LC_DIFF:ud
// Read 16x5 pixels - TODO: Reading 12x5 instead of 16x5 took more time on CL. Why?
(f0.0) mov (1) gMSGSRC.2:ud 0x00030009:ud //{NoDDChk}
(-f0.0) mov (1) gMSGSRC.2:ud 0x00040009:ud //{NoDDChk}
send (8) gudREFC(0)<1> mMSGHDRC gMSGSRC<8;8,1>:ud DAPREAD pMSGDSC:ud
#else
add (1) pMSGDSC:ud gMSGDSC_R:ud RESP_LEN(3)+nBI_LC_DIFF:ud
// Compute integer and fractional components of MV
asr (2) gMVX_INT<1>:w r[pMV,0]<2;2,1>:w 0x03:w {NoDDClr}
and (2) gMVX_FRACC<1>:w r[pMV,0]<2;2,1>:w 0x07:w {NoDDChk}
// Compute top-left corner position to be loaded
mov (2) gMSGSRC.0<1>:d gMVX_INT<2;2,1>:w
shl (1) gMSGSRC.0:d gMSGSRC.0:d 1:w
// Read 16x5 pixels
mov (1) gMSGSRC.2:ud 0x00040009:ud {NoDDChk}
send (8) gudREFC(0)<1> mMSGHDRC gMSGSRC<8;8,1>:ud DAPREAD pMSGDSC:ud
#endif
//#endif // !defined(__LOADREF_C_10x5__)