| 0,0 → 1,57 |
|---|
| /* |
| * Interpolation kernel for chrominance 2x2 motion compensation |
| * 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. |
| * |
| */ |
| // Kernel name: Interpolate_C_2x2.asm |
| // |
| // Interpolation kernel for chrominance 2x2 motion compensation |
| // |
| // $Revision: 8 $ |
| // $Date: 10/09/06 4:00p $ |
| // |
| |
| |
| //#if !defined(__Interpolate_C_2x2__) // Make sure this is only included once |
| //#define __Interpolate_C_2x2__ |
| |
| |
| // (8-xFrac) and (8-yFrac) |
| add (2) gW0<1>:w gMVX_FRACC<2;2,1>:w -0x08:w |
| |
| // Compute the GRF address of the starting position of the reference area |
| mov (1) pREF0:w nOFFSET_REFC:w {NoDDClr} |
| mov (1) pRESULT:uw gpINTPC:uw {NoDDChk} |
| |
| // gCOEFA = (8-xFrac)*(8-yFrac) |
| // gCOEFB = xFrac*(8-yFrac) |
| // gCOEFC = (8-xFrac)*yFrac |
| // gCOEFD = xFrac*yFrac |
| mul (1) gCOEFD:w gMVX_FRACC:w gMVY_FRACC:w {NoDDClr} |
| mul (1) gCOEFA:w -gW0:w -gW1:uw {NoDDClr,NoDDChk} |
| mul (1) gCOEFB:w gMVX_FRACC:w -gW1:uw {NoDDClr,NoDDChk} |
| mul (1) gCOEFC:w -gW0:w gMVY_FRACC:w {NoDDChk} |
| |
| // (8-xFrac)*(8-yFrac)*A |
| // --------------------- |
| mul (8) acc0<1>:uw r[pREF0,0]<8;4,1>:ub gCOEFA:uw |
| |
| // xFrac*(8-yFrac)*B |
| // ------------------- |
| mac (8) acc0<1>:uw r[pREF0,2]<8;4,1>:ub gCOEFB:uw |
| |
| // (8-xFrac)*yFrac*C |
| // ------------------- |
| mac (8) acc0<1>:uw r[pREF0,8]<8;4,1>:ub gCOEFC:uw |
| |
| // xFrac*yFrac*D |
| // ----------------- |
| mac (8) gwINTERIM_BUF2(0)<1> r[pREF0,10]<8;4,1>:ub gCOEFD:uw |
| mov (4) r[pRESULT]<1>:uw gwINTERIM_BUF2(0)<4;4,1> {NoDDClr} |
| mov (4) r[pRESULT,16]<1>:uw gwINTERIM_BUF2(0,4)<4;4,1> {NoDDChk} |
| |
| //#endif // !defined(__Interpolate_C_2x2__) |