2 * Save I_PCM Y samples to Y picture buffer
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3 * Copyright © <2010>, Intel Corporation.
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5 * This program is licensed under the terms and conditions of the
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6 * Eclipse Public License (EPL), version 1.0. The full text of the EPL is at
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7 * http://www.opensource.org/licenses/eclipse-1.0.php.
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10 // Module name: save_I_PCM.asm
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12 // First save I_PCM Y samples to Y picture buffer
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14 mov (1) MSGSRC.2:ud 0x000F000F:ud {NoDDClr} // Block width and height (16x16)
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15 shl (2) MSGSRC.0:ud ORIX<2;2,1>:ub 4:w {NoDDChk} // Convert MB origin in pixel unit
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17 add (1) MSGDSC REG_MBAFF_FIELD<0;1,0>:uw MSG_LEN(8)+DWBWMSGDSC_WC+DESTY:ud // Set message descriptor
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20 mov (32) MSGPAYLOAD(%1)<1> I_PCM_Y(%1)REGION(16,1) {Compr,NoDDClr}
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21 mov (32) MSGPAYLOAD(%1,16)<1> I_PCM_Y(%1,16)REGION(16,1) {Compr,NoDDChk}
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24 send (8) REG_WRITE_COMMIT_Y<1>:ud MSGHDR MSGSRC<8;8,1>:ud DAPWRITE MSGDSC
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26 // Then save I_PCM U/V samples to U/V picture buffer
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28 mov (1) MSGHDR.2:ud 0x0007000F:ud {NoDDClr} // Block width and height (16x8)
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29 asr (1) MSGHDR.1:ud MSGSRC.1<0;1,0>:ud 1:w {NoDDChk} // Y offset should be halved
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30 add (1) MSGDSC MSGDSC 0x0-MSG_LEN(4)+0x1:d // Set message descriptor for U/V
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33 and.z.f0.0 (1) NULLREG REG_CHROMA_FORMAT_IDC CHROMA_FORMAT_IDC:ud
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34 (f0.0) jmpi (1) MONOCHROME_I_PCM
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38 // Non-monochrome picture
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40 $for(0,0; <4; 2,1) {
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41 mov (16) MSGPAYLOAD(%1)<2> I_PCM_UV(%2)REGION(16,1) // U data
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42 mov (16) MSGPAYLOAD(%1,1)<2> I_PCM_UV(%2+2)REGION(16,1) // V data
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43 mov (16) MSGPAYLOAD(%1+1)<2> I_PCM_UV(%2,16)REGION(16,1) // U data
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44 mov (16) MSGPAYLOAD(%1+1,1)<2> I_PCM_UV(%2+2,16)REGION(16,1) // V data
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46 #else // defined(MONO)
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49 mov (16) MSGPAYLOADD(%1)<1> 0x80808080:ud {Compr}
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52 #endif // !defined(MONO)
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54 send (8) REG_WRITE_COMMIT_UV<1>:ud MSGHDR null:ud DAPWRITE MSGDSC
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56 // End of save_I_PCM
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