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/*
* Save I_PCM Y samples to Y picture buffer
* 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: save_I_PCM.asm
//
// First save I_PCM Y samples to Y picture buffer
//
mov (1) MSGSRC.2:ud 0x000F000F:ud {NoDDClr} // Block width and height (16x16)
shl (2) MSGSRC.0:ud ORIX<2;2,1>:ub 4:w {NoDDChk} // Convert MB origin in pixel unit
add (1) MSGDSC REG_MBAFF_FIELD<0;1,0>:uw MSG_LEN(8)+DWBWMSGDSC_WC+DESTY:ud // Set message descriptor
$for(0; <8; 2) {
mov (32) MSGPAYLOAD(%1)<1> I_PCM_Y(%1)REGION(16,1) {Compr,NoDDClr}
mov (32) MSGPAYLOAD(%1,16)<1> I_PCM_Y(%1,16)REGION(16,1) {Compr,NoDDChk}
}
send (8) REG_WRITE_COMMIT_Y<1>:ud MSGHDR MSGSRC<8;8,1>:ud DAPWRITE MSGDSC
// Then save I_PCM U/V samples to U/V picture buffer
//
mov (1) MSGHDR.2:ud 0x0007000F:ud {NoDDClr} // Block width and height (16x8)
asr (1) MSGHDR.1:ud MSGSRC.1<0;1,0>:ud 1:w {NoDDChk} // Y offset should be halved
add (1) MSGDSC MSGDSC 0x0-MSG_LEN(4)+0x1:d // Set message descriptor for U/V
#if 0
and.z.f0.0 (1) NULLREG REG_CHROMA_FORMAT_IDC CHROMA_FORMAT_IDC:ud
(f0.0) jmpi (1) MONOCHROME_I_PCM
#endif
#ifndef MONO
// Non-monochrome picture
//
$for(0,0; <4; 2,1) {
mov (16) MSGPAYLOAD(%1)<2> I_PCM_UV(%2)REGION(16,1) // U data
mov (16) MSGPAYLOAD(%1,1)<2> I_PCM_UV(%2+2)REGION(16,1) // V data
mov (16) MSGPAYLOAD(%1+1)<2> I_PCM_UV(%2,16)REGION(16,1) // U data
mov (16) MSGPAYLOAD(%1+1,1)<2> I_PCM_UV(%2+2,16)REGION(16,1) // V data
}
#else // defined(MONO)
MONOCHROME_I_PCM:
$for(0; <4; 2) {
mov (16) MSGPAYLOADD(%1)<1> 0x80808080:ud {Compr}
}
#endif // !defined(MONO)
send (8) REG_WRITE_COMMIT_UV<1>:ud MSGHDR null:ud DAPWRITE MSGDSC
// End of save_I_PCM
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