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/*
* Add macroblock correction Y data blocks to predicted picture
* 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.
*
*/
// Module name: add_Error_16x16_Y.asm
//
// Add macroblock correction Y data blocks to predicted picture
//
// Every line of predicted Y data is added to Y error data if CBP bit is set
mov (1) PERROR_UD<1>:ud 0x10001*ERRBUF*GRFWIB+0x00100000:ud // Pointers to first and second row of error block
and.z.f0.1 (1) NULLREG REG_CBPCY CBP_Y_MASK
(f0.1) jmpi (1) End_add_Error_16x16_Y // Skip all blocks
// Block Y0
//
$for(0,0; <8; 2,1) {
add.sat (16) DEC_Y(%1)<2> r[PERROR,%2*GRFWIB]REGION(8,1):w PRED_Y(%1)REGION(8,2) {Compr}
}
// Block Y1
//
$for(0,0; <8; 2,1) {
add.sat (16) DEC_Y(%1,16)<2> r[PERROR,%2*GRFWIB+0x80]REGION(8,1):w PRED_Y(%1,16)REGION(8,2) {Compr}
}
// Block Y2
//
$for(8,0; <16; 2,1) {
add.sat (16) DEC_Y(%1)<2> r[PERROR,%2*GRFWIB+0x100]REGION(8,1):w PRED_Y(%1)REGION(8,2) {Compr}
}
// Block Y3
//
$for(8,0; <16; 2,1) {
add.sat (16) DEC_Y(%1,16)<2> r[PERROR,%2*GRFWIB+0x180]REGION(8,1):w PRED_Y(%1,16)REGION(8,2) {Compr}
}
End_add_Error_16x16_Y:
add (1) PERROR_UD<1>:ud PERROR_UD:ud 0x01800180:ud // Pointers to Y3 error block
// End of add_Error_16x16_Y
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