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  1. /*
  2.  * All Video Processing kernels
  3.  * Copyright © <2010>, Intel Corporation.
  4.  *
  5.  * This program is licensed under the terms and conditions of the
  6.  * Eclipse Public License (EPL), version 1.0.  The full text of the EPL is at
  7.  * http://www.opensource.org/licenses/eclipse-1.0.php.
  8.  *
  9.  */
  10.  
  11. // Module name: PA_Load_9x8.asm
  12. //----------------------------------------------------------------
  13. //  This module loads 16x8 Y, 9x8 U and 9x8 V planar data blocks for CSC module
  14. //      and stores it in word-aligned format.
  15. //----------------------------------------------------------------
  16.  
  17. #define  PA_LOAD_9x8
  18. #include "PA_Load.inc"
  19.  
  20. //  Load 18x8 packed data block
  21. //  Packed data block should be loaded as 36x8 pixel block
  22.     add  (2) rMSGSRC.0<1>:d     wORIX<2;2,1>:w    wSRC_H_ORI_OFFSET<2;2,1>:w       // Source Block origin
  23.     shl  (1) rMSGSRC.0<1>:d     acc0:w            1:w                              // H. block origin need to be doubled
  24.     mov  (1) rMSGSRC.2<1>:ud    nDPR_BLOCK_SIZE_YUV_MAIN:ud                        // Block width and height (32x8)
  25.     mov  (8) mMSGHDRY<1>:ud     rMSGSRC<8;8,1>:ud
  26.     send (8) udSRC_YUV(0)<1>    mMSGHDRY    udDUMMY_NULL    nDATAPORT_READ    nDPMR_MSGDSC+nDPR_MSG_SIZE_YUV_MAIN+nBI_CURRENT_SRC_YUV:ud
  27.  
  28.     add  (1) rMSGSRC.0<1>:d     rMSGSRC.0:d       32:w                             //the last 4 pixels are read again for optimization
  29.     mov  (1) rMSGSRC.2<1>:ud    nDPR_BLOCK_SIZE_YUV_ADDITION:ud                    // Block width and height (4x8)
  30.     mov  (8) mMSGHDRY<1>:ud     rMSGSRC<8;8,1>:ud
  31.     send (8) udSRC_YUV(8)<1>    mMSGHDRY    udDUMMY_NULL    nDATAPORT_READ    nDPMR_MSGDSC+nDPR_MSG_SIZE_YUV_ADDITION+nBI_CURRENT_SRC_YUV:ud
  32.  
  33. //  Unpack to "planar" YUV422 format in word-aligned bytes
  34.     add  (4) pCF_Y_OFFSET<1>:uw    ubSRC_CF_OFFSET<4;4,1>:ub    nSRC_YUV_REG*nGRFWIB:w    // Initial Y,U,V offset in YUV422 block
  35.     $for(0; <nY_NUM_OF_ROWS; 1) {
  36.         mov (16)  uwDEST_Y(0, %1*16)<1>     r[pCF_Y_OFFSET, %1*nGRFWIB]REGION(16,2)
  37.         mov (8)   uwDEST_U(0, %1*16)<1>     r[pCF_U_OFFSET, %1*nGRFWIB]REGION(8,4)
  38.         mov (8)   uwDEST_V(0, %1*16)<1>     r[pCF_V_OFFSET, %1*nGRFWIB]REGION(8,4)
  39.     }
  40.  
  41.     $for(0; <nUV_NUM_OF_ROWS; 1) {
  42.         mov (1)   uwDEST_U(0, %1*16+8)<1>   r[pCF_U_OFFSET, %1*4+256]REGION(1,0)
  43.         mov (1)   uwDEST_V(0, %1*16+8)<1>   r[pCF_V_OFFSET, %1*4+256]REGION(1,0)
  44.     }
  45.         //UV expansion done in PL9x8_PL16x8.asm module
  46.  
  47. // End of PA_Load_9x8
  48.