1 ; 2 ; Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 ; 4 ; Use of this source code is governed by a BSD-style license 5 ; that can be found in the LICENSE file in the root of the source 6 ; tree. An additional intellectual property rights grant can be found 7 ; in the file PATENTS. All contributing project authors may 8 ; be found in the AUTHORS file in the root of the source tree. 9 ; 10 11 12 .globl recon4b_ppc 13 .globl recon2b_ppc 14 .globl recon_b_ppc 15 16 .macro row_of16 Diff Pred Dst Stride 17 lvx v1, 0, \Pred ;# v1 = pred = p0..p15 18 addi \Pred, \Pred, 16 ;# next pred 19 vmrghb v2, v0, v1 ;# v2 = 16-bit p0..p7 20 lvx v3, 0, \Diff ;# v3 = d0..d7 21 vaddshs v2, v2, v3 ;# v2 = r0..r7 22 vmrglb v1, v0, v1 ;# v1 = 16-bit p8..p15 23 lvx v3, r8, \Diff ;# v3 = d8..d15 24 addi \Diff, \Diff, 32 ;# next diff 25 vaddshs v3, v3, v1 ;# v3 = r8..r15 26 vpkshus v2, v2, v3 ;# v2 = 8-bit r0..r15 27 stvx v2, 0, \Dst ;# to dst 28 add \Dst, \Dst, \Stride ;# next dst 29 .endm 30 31 .text 32 .align 2 33 ;# r3 = short *diff_ptr, 34 ;# r4 = unsigned char *pred_ptr, 35 ;# r5 = unsigned char *dst_ptr, 36 ;# r6 = int stride 37 recon4b_ppc: 38 mfspr r0, 256 ;# get old VRSAVE 39 stw r0, -8(r1) ;# save old VRSAVE to stack 40 oris r0, r0, 0xf000 41 mtspr 256,r0 ;# set VRSAVE 42 43 vxor v0, v0, v0 44 li r8, 16 45 46 row_of16 r3, r4, r5, r6 47 row_of16 r3, r4, r5, r6 48 row_of16 r3, r4, r5, r6 49 row_of16 r3, r4, r5, r6 50 51 lwz r12, -8(r1) ;# restore old VRSAVE from stack 52 mtspr 256, r12 ;# reset old VRSAVE 53 54 blr 55 56 .macro two_rows_of8 Diff Pred Dst Stride write_first_four_pels 57 lvx v1, 0, \Pred ;# v1 = pred = p0..p15 58 vmrghb v2, v0, v1 ;# v2 = 16-bit p0..p7 59 lvx v3, 0, \Diff ;# v3 = d0..d7 60 vaddshs v2, v2, v3 ;# v2 = r0..r7 61 vmrglb v1, v0, v1 ;# v1 = 16-bit p8..p15 62 lvx v3, r8, \Diff ;# v2 = d8..d15 63 vaddshs v3, v3, v1 ;# v3 = r8..r15 64 vpkshus v2, v2, v3 ;# v3 = 8-bit r0..r15 65 stvx v2, 0, r10 ;# 2 rows to dst from buf 66 lwz r0, 0(r10) 67 .if \write_first_four_pels 68 stw r0, 0(\Dst) 69 .else 70 stwux r0, \Dst, \Stride 71 .endif 72 lwz r0, 4(r10) 73 stw r0, 4(\Dst) 74 lwz r0, 8(r10) 75 stwux r0, \Dst, \Stride ;# advance dst to next row 76 lwz r0, 12(r10) 77 stw r0, 4(\Dst) 78 .endm 79 80 .align 2 81 ;# r3 = short *diff_ptr, 82 ;# r4 = unsigned char *pred_ptr, 83 ;# r5 = unsigned char *dst_ptr, 84 ;# r6 = int stride 85 86 recon2b_ppc: 87 mfspr r0, 256 ;# get old VRSAVE 88 stw r0, -8(r1) ;# save old VRSAVE to stack 89 oris r0, r0, 0xf000 90 mtspr 256,r0 ;# set VRSAVE 91 92 vxor v0, v0, v0 93 li r8, 16 94 95 la r10, -48(r1) ;# buf 96 97 two_rows_of8 r3, r4, r5, r6, 1 98 99 addi r4, r4, 16; ;# next pred 100 addi r3, r3, 32; ;# next diff 101 102 two_rows_of8 r3, r4, r5, r6, 0 103 104 lwz r12, -8(r1) ;# restore old VRSAVE from stack 105 mtspr 256, r12 ;# reset old VRSAVE 106 107 blr 108 109 .macro get_two_diff_rows 110 stw r0, 0(r10) 111 lwz r0, 4(r3) 112 stw r0, 4(r10) 113 lwzu r0, 32(r3) 114 stw r0, 8(r10) 115 lwz r0, 4(r3) 116 stw r0, 12(r10) 117 lvx v3, 0, r10 118 .endm 119 120 .align 2 121 ;# r3 = short *diff_ptr, 122 ;# r4 = unsigned char *pred_ptr, 123 ;# r5 = unsigned char *dst_ptr, 124 ;# r6 = int stride 125 recon_b_ppc: 126 mfspr r0, 256 ;# get old VRSAVE 127 stw r0, -8(r1) ;# save old VRSAVE to stack 128 oris r0, r0, 0xf000 129 mtspr 256,r0 ;# set VRSAVE 130 131 vxor v0, v0, v0 132 133 la r10, -48(r1) ;# buf 134 135 lwz r0, 0(r4) 136 stw r0, 0(r10) 137 lwz r0, 16(r4) 138 stw r0, 4(r10) 139 lwz r0, 32(r4) 140 stw r0, 8(r10) 141 lwz r0, 48(r4) 142 stw r0, 12(r10) 143 144 lvx v1, 0, r10; ;# v1 = pred = p0..p15 145 146 lwz r0, 0(r3) ;# v3 = d0..d7 147 148 get_two_diff_rows 149 150 vmrghb v2, v0, v1; ;# v2 = 16-bit p0..p7 151 vaddshs v2, v2, v3; ;# v2 = r0..r7 152 153 lwzu r0, 32(r3) ;# v3 = d8..d15 154 155 get_two_diff_rows 156 157 vmrglb v1, v0, v1; ;# v1 = 16-bit p8..p15 158 vaddshs v3, v3, v1; ;# v3 = r8..r15 159 160 vpkshus v2, v2, v3; ;# v2 = 8-bit r0..r15 161 stvx v2, 0, r10; ;# 16 pels to dst from buf 162 163 lwz r0, 0(r10) 164 stw r0, 0(r5) 165 lwz r0, 4(r10) 166 stwux r0, r5, r6 167 lwz r0, 8(r10) 168 stwux r0, r5, r6 169 lwz r0, 12(r10) 170 stwx r0, r5, r6 171 172 lwz r12, -8(r1) ;# restore old VRSAVE from stack 173 mtspr 256, r12 ;# reset old VRSAVE 174 175 blr 176
