/*
* Copyright © <2010>, Intel Corporation.
*
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* 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
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* 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
*
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* 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
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*/
// Module Name: Load_Left_UV_2X8T.Asm
//
// Load UV 8X2 Block
//
//----------------------------------------------------------------
// Symbols ceed To be defined before including this module
//
// Source Region Is :UB
// BUF_D: BUF_D Base=Rxx Elementsize=4 Srcregion=Region(8,1) Type=UD
// Binding Table Index:
// BI_SRC_UV: Binding Table Index Of UV Surface (NV12)
//
//----------------------------------------------------------------
#if defined(_DEBUG)
mov (1) EntrySignatureC:w 0xDDD0:w
#endif
#if defined(_PROGRESSIVE)
// Read U+V
mov (1) MSGSRC.0:ud ORIX_LEFT:w { NoDDClr } // Block origin
asr (1) MSGSRC.1:ud ORIY_LEFT:w 1:w { NoDDClr, NoDDChk } // NV12 U+V block origin y = half of Y comp
mov (1) MSGSRC.2:ud 0x00070003:ud { NoDDChk } // NV12 U+V block width and height (4x8)
send (8) LEFT_TEMP_D(0)<1> MSGHDRU MSGSRC<8;8,1>:ud DAPREAD RESP_LEN(1)+DWBRMSGDSC_RC+BI_DEST_UV
#endif
#if defined(_FIELD) || defined(_MBAFF)
// FieldModeCurrentMbFlag determines how to access left MB
and.z.f0.0 (1) null:w r[ECM_AddrReg, BitFlags]:ub FieldModeCurrentMbFlag:w
and.nz.f0.1 (1) NULLREGW BitFields:w BotFieldFlag:w // Get bottom field flag
// Read U+V
mov (1) MSGSRC.0:ud ORIX_LEFT:w { NoDDClr } // Block origin
asr (1) MSGSRC.1:ud ORIY_LEFT:w 1:w { NoDDClr, NoDDChk } // NV12 U+V block origin y = half of Y comp
mov (1) MSGSRC.2:ud 0x00070003:ud { NoDDChk } // NV12 U+V block width and height (4x8)
// Load NV12 U+V
// Set message descriptor
(f0.0) if (1) ILDB_LABEL(ELSE_Y_2x8T)
// Frame picture
mov (1) MSGDSC RESP_LEN(1)+DWBRMSGDSC_RC+BI_DEST_UV:ud // Read 1 GRF from SRC_UV
(f0.1) add (1) MSGSRC.1:d MSGSRC.1:d 8:w // Add vertical offset 8 for bot MB in MBAFF mode
ILDB_LABEL(ELSE_Y_2x8T):
else (1) ILDB_LABEL(ENDIF_Y_2x8T)
// Field picture
(f0.1) mov (1) MSGDSC RESP_LEN(1)+DWBRMSGDSC_RC_BF+BI_DEST_UV:ud // Read 1 GRF from SRC_Y bottom field
(-f0.1) mov (1) MSGDSC RESP_LEN(1)+DWBRMSGDSC_RC_TF+BI_DEST_UV:ud // Read 1 GRF from SRC_Y top field
endif
ILDB_LABEL(ENDIF_Y_2x8T):
// Read 1 GRF from DEST surface as the above MB has been deblocked.
// send (8) BUF_D(0)<1> MSGHDRU MSGSRC<8;8,1>:ud MSGDSC
send (8) LEFT_TEMP_D(0)<1> MSGHDRU MSGSRC<8;8,1>:ud DAPREAD MSGDSC
#endif
// End of load_Left_UV_2x8T.asm