| 0,0 → 1,94 |
|---|
| /* |
| * 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: TransposeNV12_4x16.asm |
| // |
| // Transpose a 4x16 internal planar to 16x4 internal planar block |
| // |
| //---------------------------------------------------------------------------------------- |
| // Symbols need to be defined before including this module |
| // |
| // Source region is :ub |
| // SRC_YB: SRC_YB Base=rxx ElementSize=1 SrcRegion=REGION(16,1) Type=ub // 8 GRFs |
| // SRC_UW: SRC_UB Base=rxx ElementSize=2 SrcRegion=REGION(8,1) Type=uw // 4 GRFs |
| // |
| // Temp buffer: |
| // BUF_B: BUF_B Base=rxx ElementSize=1 SrcRegion=REGION(16,1) Type=ub // 8 GRFs |
| // BUF_W: BUF_W Base=rxx ElementSize=2 SrcRegion=REGION(8,1) Type=uw // 4 GRFs |
| // |
| ////////////////////////////////////////////////////////////////////////////////////////// |
| |
| #if defined(_DEBUG) |
| mov (1) EntrySignatureC:w 0xDDDB:w |
| #endif |
| |
| // Transpose Y (4x16) right most 4 columns |
| |
| // The first step |
| mov (16) BUF_B(0,0)<1> SRC_YB(0,0)<16;4,1> // Read 2 rows, write 1 row |
| mov (16) BUF_B(0,16)<1> SRC_YB(2,0)<16;4,1> |
| mov (16) BUF_B(1,0)<1> SRC_YB(4,0)<16;4,1> |
| mov (16) BUF_B(1,16)<1> SRC_YB(6,0)<16;4,1> |
| |
| // The second step |
| mov (16) BUF_B(2,0)<1> BUF_B(0,0)<32;8,4> // Read 2 rows, write 1 row |
| mov (16) BUF_B(2,16)<1> BUF_B(0,1)<32;8,4> |
| mov (16) BUF_B(3,0)<1> BUF_B(0,2)<32;8,4> |
| mov (16) BUF_B(3,16)<1> BUF_B(0,3)<32;8,4> |
| |
| // Y is now transposed. the result is in BUF_B(2) and BUF_B(3). |
| |
| |
| |
| // Transpose UV (4x8), right most 2 columns in word |
| // Use BUF_W(0) as temp buf |
| |
| // Src U 8x8 and V 8x8 are mixed. (each pix is specified as yx) |
| // +-----------------------+-----------------------+-----------------------+-----------------------+ |
| // |17 17 16 16 15 15 14 14 13 13 12 12 11 11 10 10 07 07 06 06 05 05 04 04 03 03 02 02 01 01 00 00| |
| // +-----------------------+-----------------------+-----------------------+-----------------------+ |
| // |37 37 36 36 35 35 34 34 33 33 32 32 31 31 30 30 27 27 26 26 25 25 24 24 23 23 22 22 21 21 20 20| |
| // +-----------------------+-----------------------+-----------------------+-----------------------+ |
| // |57 57 56 56 55 55 54 54 53 53 52 52 51 51 50 50 47 47 46 46 45 45 44 44 43 43 42 42 41 41 40 40| |
| // +-----------------------+-----------------------+-----------------------+-----------------------+ |
| // |77 77 76 76 75 75 74 74 73 73 72 72 71 71 70 70 67 67 66 66 65 65 64 64 63 63 62 62 61 61 60 60| |
| // +-----------------------+-----------------------+-----------------------+-----------------------+ |
| |
| // First step (8) <1>:w <==== <8;2,1>:w |
| // +-----------------------+-----------------------+-----------------------+-----------------------+ |
| // |71 71 70 70 61 61 60 60 51 51 50 50 41 41 40 40 31 31 30 30 21 21 20 20 11 11 10 10 01 01 00 00| |
| // +-----------------------+-----------------------+-----------------------+-----------------------+ |
| mov (8) BUF_W(0,0)<1> SRC_UW(0,0)<8;2,1> |
| mov (8) BUF_W(0,8)<1> SRC_UW(2,0)<8;2,1> |
| |
| // Second step (16) <1>:w <==== <1;8,2>:w |
| // +-----------------------+-----------------------+-----------------------+-----------------------+ |
| // |71 71 61 61 51 51 41 41 31 31 21 21 11 11 01 01 70 70 60 60 50 50 40 40 30 30 20 20 10 10 00 00| |
| // +-----------------------+-----------------------+-----------------------+-----------------------+ |
| mov (16) BUF_W(1,0)<1> BUF_W(0,0)<1;8,2> |
| |
| // UV are now transposed. the result is in BUF_W(1). |
| |
| |
| |
| //The first step |
| //mov (16) BUF_B(0,0)<1> SRC_UW(0,0)<8;2,1> // Read 2 rows, write 1 row |
| // The second step |
| //mov (8) SRC_UB(4,0)<1> BUF_B(0,0)<16;8,2> // Read 1 row, write 1 row |
| //mov (8) SRC_UB(4,8)<1> BUF_B(0,1)<16;8,2> // Read 1 row, write 1 row |
| |
| // Transpose V (8x8), right most 2 columns |
| // The first step |
| //mov (16) BUF_B(0,0)<1> SRC_VB(0,1)<8;2,1> // Read 2 rows, write 1 row |
| // The second step |
| //mov (8) SRC_UB(4,16)<1> BUF_B(0,0)<16;8,2> // Read 1 row, write 1 row |
| //mov (8) SRC_UB(4,24)<1> BUF_B(0,1)<16;8,2> // Read 1 row, write 1 row |
| |
| // U and V are now transposed. the result is in BUF_B(4). |
| |