omxVCM4P10_TransformDequantLumaDCFromPair_s.S revision 22e06318d04074d1a7c90caa173857abdcfd153e 
1/*
2 * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved.
3 *
4 */
5
6    .eabi_attribute 24, 1
7    .eabi_attribute 25, 1
8
9    .arm
10    .fpu neon
11    .text
12
13    .global armVCM4P10_InvTransformDequantLumaDC4x4
14    .func   armVCM4P10_InvTransformDequantLumaDC4x4
15armVCM4P10_InvTransformDequantLumaDC4x4:
16    PUSH     {r4-r6,lr}
17    VPUSH    {d8-d13}
18    VLD4.16  {d0,d1,d2,d3},[r0]
19    LDR      r2, .LarmVCM4P10_QPDivTable
20P0: ADD      r2, pc
21    LDR      r3, .LarmVCM4P10_VMatrixQPModTable
22P1: ADD      r3, pc
23    VADD.I16 d4,d0,d1
24    VADD.I16 d5,d2,d3
25    VSUB.I16 d6,d0,d1
26    LDRSB    r4,[r2,r1]
27    VSUB.I16 d7,d2,d3
28    LDRSB    r5,[r3,r1]
29    VADD.I16 d0,d4,d5
30    VSUB.I16 d1,d4,d5
31    VSUB.I16 d2,d6,d7
32    LSL      r5,r5,r4
33    VADD.I16 d3,d6,d7
34    VTRN.16  d0,d1
35    VTRN.16  d2,d3
36    VTRN.32  q0,q1
37    VADD.I16 d4,d0,d1
38    VADD.I16 d5,d2,d3
39    VSUB.I16 d6,d0,d1
40    VSUB.I16 d7,d2,d3
41    VADD.I16 d0,d4,d5
42    VSUB.I16 d1,d4,d5
43    VSUB.I16 d2,d6,d7
44    VADD.I16 d3,d6,d7
45    VDUP.16  d5,r5
46    VMOV.I32 q3,#0x2
47    VMOV.I32 q4,#0x2
48    VMOV.I32 q5,#0x2
49    VMOV.I32 q6,#0x2
50    VMLAL.S16 q3,d0,d5
51    VMLAL.S16 q4,d1,d5
52    VMLAL.S16 q5,d2,d5
53    VMLAL.S16 q6,d3,d5
54    VSHRN.I32 d0,q3,#2
55    VSHRN.I32 d1,q4,#2
56    VSHRN.I32 d2,q5,#2
57    VSHRN.I32 d3,q6,#2
58    VST1.16  {d0,d1,d2,d3},[r0]
59    VPOP     {d8-d13}
60    POP      {r4-r6,pc}
61    .endfunc
62
63.LarmVCM4P10_QPDivTable:
64    .word armVCM4P10_QPDivTable-(P0+8)
65.LarmVCM4P10_VMatrixQPModTable:
66    .word armVCM4P10_VMatrixQPModTable-(P1+8)
67
68.global omxVCM4P10_TransformDequantLumaDCFromPair
69.func   omxVCM4P10_TransformDequantLumaDCFromPair
70omxVCM4P10_TransformDequantLumaDCFromPair:
71    PUSH     {r4-r6,lr}
72    MOV      r4,r1
73    MOV      r5,r2
74    BL       armVCM4P10_UnpackBlock4x4
75    MOV      r0,r4
76    MOV      r1,r5
77    BL       armVCM4P10_InvTransformDequantLumaDC4x4
78    MOV      r0,#0
79    POP      {r4-r6,pc}
80    .endfunc
81
82    .end
83
84