summaryrefslogtreecommitdiffstats
path: root/libass/x86/be_blur.asm
blob: fae0e9c298cf5ca0807cddb4937c9a66bc3ab464 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
;******************************************************************************
;* be_blur.asm: SSE2 \be blur
;******************************************************************************
;* Copyright (C) 2013 Rodger Combs <rcombs@rcombs.me>
;*
;* This file is part of libass.
;*
;* Permission to use, copy, modify, and distribute this software for any
;* purpose with or without fee is hereby granted, provided that the above
;* copyright notice and this permission notice appear in all copies.
;*
;* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
;* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
;* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
;* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
;* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
;* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
;* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
;******************************************************************************

%include "x86/x86inc.asm"

SECTION_RODATA 32
low_word_zero: dd 0xFFFF0000, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF

SECTION .text

;------------------------------------------------------------------------------
; void be_blur_pass( uint8_t *buf, unsigned width,
;                    unsigned height, unsigned stride,
;                    uint16_t *tmp);
;------------------------------------------------------------------------------

INIT_XMM sse2
cglobal be_blur, 5,15,9
.skip_prologue:
    mov r6, 2 ; int x = 2;
    pxor xmm6, xmm6 ; __m128i temp3 = 0;
    mov r7, r0 ; unsigned char *src=buf;
    movzx r8, byte [r7 + 1] ; int old_pix = src[1];
    movzx r9, byte [r7] ; int old_sum = src[0];
    add r9, r8 ; old_sum += old_pix;
    lea r12, [r4 + r3 * 2] ; unsigned char *col_sum_buf = tmp + stride * 2;
    lea r14, [r1 - 2] ; tmpreg = (w-2);
    and r14, -8 ; tmpreg &= (~7);
.first_loop:
    movzx r10, byte [r7 + r6] ; int temp1 = src[x];
    lea r11, [r8 + r10] ; int temp2 = old_pix + temp1;
    mov r8, r10 ; old_pix = temp1;
    lea r10, [r9 + r11] ; temp1 = old_sum + temp2;
    mov r9, r11 ; old_sum = temp2;
    mov word [r4 + r6 * 2], r10w ; col_pix_buf[x] = temp1;
    inc r6 ; x++
    cmp r6, r1 ; x < w
    jl .first_loop
    mov r6, 2 ; int x = 2;
    lea r7, [r0 + r3] ; unsigned char *src=buf+stride;
    movzx r8, byte [r7 + 1] ; int old_pix = src[1];
    movzx r9, byte [r7] ; int old_sum = src[0];
    add r9, r8 ; old_sum += old_pix
.second_loop:
    movzx r10, byte [r7 + r6] ; int temp1 = src[x];
    lea r11, [r8 + r10] ; int temp2 = old_pix + temp1;
    mov r8, r10 ; old_pix = temp1;
    lea r10, [r9 + r11] ; temp1 = old_sum + temp2;
    mov r9, r11 ; old_sum = temp2;
    movzx r11, word [r4 + r6 * 2] ; temp2 = col_pix_buf[x];
    add r11, r10 ; temp2 += temp1;
    mov word [r4 + r6 * 2], r10w ; col_pix_buf[x] = temp1;
    mov word [r12 + r6 * 2], r11w ; col_sum_buf[x] = temp2;
    inc r6 ; x++
    cmp r6, r1 ; x < w
    jl .second_loop
    mov r5, 2 ; int y = 2;
.height_loop:
    mov r10, r5; int tmpreg = y;
    imul r10, r3; tmpreg *= stride;
    lea r7, [r0 + r10] ; unsigned char *src=buf+y*stride;
    sub r10, r3 ; tmpreg -= stride;
    lea r13, [r0 + r10]; unsigned char *dst=buf+(y-1)*stride;
    mov r6, 2 ; int x = 2;
    movzx r10, byte [r7] ; temp1 = src[0];
    movzx r11, byte [r7 + 1] ; temp2 = src[1];
    add r10, r11; temp1 += temp2
    movd xm0, r10d; __m128i old_pix_128 = temp2;
    movd xm1, r11d; __m128i old_sum_128 = temp1;
.width_loop:
    movq xmm2, [r7 + r6]; __m128i new_pix = (src+x);
    punpcklbw xmm2, xmm6 ; new_pix = _mm_unpacklo_epi8(new_pix, temp3);
    movdqa xmm3, xmm2 ; __m128i temp = new_pix;
    pslldq xmm3, 2 ; temp = temp << 2 * 8;
    paddw xmm3, xmm0 ; temp = _mm_add_epi16(temp, old_pix_128);
    paddw xmm3, xmm2 ; temp = _mm_add_epi16(temp, new_pix);
    movdqa xmm0, xmm2 ; old_pix_128 = new_pix;
    psrldq xmm0, 14 ; old_pix_128 = old_pix_128 >> 14 * 8;
    movdqa xmm2, xmm3 ; new_pix = temp;
    pslldq xmm2, 2 ; new_pix = new_pix << 2 * 8;
    paddw xmm2, xmm1 ; new_pix = _mm_add_epi16(new_pix, old_sum_128);
    paddw xmm2, xmm3 ; new_pix = _mm_add_epi16(new_pix, temp);
    movdqa xmm1, xmm3 ; old_sum_128 = temp;
    psrldq xmm1, 14 ; old_sum_128 = old_sum_128 >> 14 * 8;
    movdqu xmm4, [r4 + r6 * 2] ; __m128i old_col_pix = *(col_pix_buf+x);
    movdqu [r4 + r6 * 2], xmm2 ; *(col_pix_buf+x) = new_pix ;
    movdqu xmm5, [r12 + r6 * 2] ; __m128i old_col_sum = *(col_pix_sum+x);
    movdqa xmm3, xmm2 ; temp = new_pix;
    paddw xmm3, xmm4 ; temp = _mm_add_epi16(temp, old_col_pix);
    movdqu [r12 + r6 * 2], xmm3 ; *(col_sum_buf+x) = temp;
    paddw xmm5, xmm3 ; old_col_sum = _mm_add_epi16(old_col_sum, temp);
    psrlw xmm5, 4 ; old_col_sum = old_col_sum >> 4;
    packuswb xmm5, xmm5 ; old_col_sum = _mm_packus_epi16(old_col_sum, old_col_sum);
    movq qword [r13 + r6 - 1], xmm5 ; *(dst+x-1) = old_col_sum;
    add r6, 8; x += 8;
    cmp r6, r14; x < ((w - 2) & (~7));
    jl .width_loop
    movzx r8, byte [r7 + r6 - 1] ; old_pix = src[x-1];
    movzx r9, byte [r7 + r6 - 2] ; old_sum = old_pix + src[x-2];
    add r9, r8
    jmp .final_width_check
.final_width_loop:
    movzx r10, byte [r7 + r6] ; temp1 = src[x];
    lea r11, [r8 + r10] ; temp2 = old_pix + temp1;
    mov r8, r10 ; old_pix = temp1;
    lea r10, [r9 + r11] ; temp1 = old_sum + temp2;
    mov r9, r11 ; old_sum = temp2;
    movzx r11, word [r4 + r6 * 2] ; temp2 = col_pix_buf[x];
    add r11, r10 ; temp2 += temp1;
    mov word [r4 + r6 * 2], r10w ; col_pix_buf[x] = temp1;
    movzx r10, word [r12 + r6 * 2] ; temp1 = col_sum_buf[x];
    add r10, r11 ; temp1 += temp2;
    shr r10, 4 ; temp1 >>= 4;
    mov byte [r13 + r6 - 1], r10b ; dst[x-1] = temp1
    mov [r12 + r6 * 2], r11w ; col_sum_buf[x] = temp2;
    inc r6 ; x++
.final_width_check:
    cmp r6, r1 ; x < w
    jl .final_width_loop
    inc r5 ; y++;
    cmp r5, r2 ; y < h;
    jl .height_loop
    RET

INIT_YMM avx2
cglobal be_blur, 5,15,9
    cmp r1, 32
    jl be_blur_sse2.skip_prologue
    mov r6, 2 ; int x = 2;
    vpxor ymm6, ymm6 ; __m128i temp3 = 0;
    mov r7, r0 ; unsigned char *src=buf;
    movzx r8, byte [r7 + 1] ; int old_pix = src[1];
    movzx r9, byte [r7] ; int old_sum = src[0];
    add r9, r8 ; old_sum += old_pix;
    lea r12, [r4 + r3 * 2] ; unsigned char *col_sum_buf = tmp + stride * 2;
    lea r14, [r1 - 2] ; tmpreg = (w-2);
    and r14, -16 ; tmpreg &= (~15);
    vmovdqa ymm7, [low_word_zero]
.first_loop:
    movzx r10, byte [r7 + r6] ; int temp1 = src[x];
    lea r11, [r8 + r10] ; int temp2 = old_pix + temp1;
    mov r8, r10 ; old_pix = temp1;
    lea r10, [r9 + r11] ; temp1 = old_sum + temp2;
    mov r9, r11 ; old_sum = temp2;
    mov word [r4 + r6 * 2], r10w ; col_pix_buf[x] = temp1;
    inc r6 ; x++
    cmp r6, r1 ; x < w
    jl .first_loop
    mov r6, 2 ; int x = 2;
    lea r7, [r0 + r3] ; unsigned char *src=buf+stride;
    movzx r8, byte [r7 + 1] ; int old_pix = src[1];
    movzx r9, byte [r7] ; int old_sum = src[0];
    add r9, r8 ; old_sum += old_pix
.second_loop:
    movzx r10, byte [r7 + r6] ; int temp1 = src[x];
    lea r11, [r8 + r10] ; int temp2 = old_pix + temp1;
    mov r8, r10 ; old_pix = temp1;
    lea r10, [r9 + r11] ; temp1 = old_sum + temp2;
    mov r9, r11 ; old_sum = temp2;
    movzx r11, word [r4 + r6 * 2] ; temp2 = col_pix_buf[x];
    add r11, r10 ; temp2 += temp1;
    mov word [r4 + r6 * 2], r10w ; col_pix_buf[x] = temp1;
    mov word [r12 + r6 * 2], r11w ; col_sum_buf[x] = temp2;
    inc r6 ; x++
    cmp r6, r1 ; x < w
    jl .second_loop
    mov r5, 2 ; int y = 2;
.height_loop:
    mov r10, r5; int tmpreg = y;
    imul r10, r3; tmpreg *= stride;
    lea r7, [r0 + r10] ; unsigned char *src=buf+y*stride;
    sub r10, r3 ; tmpreg -= stride;
    lea r13, [r0 + r10]; unsigned char *dst=buf+(y-1)*stride;
    mov r6, 2 ; int x = 2;
    movzx r10, byte [r7] ; temp1 = src[0];
    movzx r11, byte [r7 + 1] ; temp2 = src[1];
    add r10, r11; temp1 += temp2
    vmovd xmm0, r10d; __m128i old_pix_128 = temp2;
    vmovd xmm1, r11d; __m128i old_sum_128 = temp1;
.width_loop:
    vpermq ymm2, [r7 + r6], 0x10
    vpunpcklbw ymm2, ymm2, ymm6 ; new_pix = _mm_unpacklo_epi8(new_pix, temp3);
    vpermq ymm8, ymm2, 0x4e
    vpalignr ymm3, ymm2, ymm8, 14
    vpand ymm3, ymm3, ymm7
    vpaddw ymm3, ymm0 ; temp = _mm_add_epi16(temp, old_pix_128);
    vpaddw ymm3, ymm2 ; temp = _mm_add_epi16(temp, new_pix);
    vperm2i128 ymm0, ymm2, ymm6, 0x21
    vpsrldq ymm0, ymm0, 14; temp = temp >> 14 * 8;
    vpermq ymm8, ymm3, 0x4e
    vpand ymm8, ymm8, ymm7;
    vpalignr ymm2, ymm3, ymm8, 14
    vpand ymm2, ymm2, ymm7
    vpaddw ymm2, ymm1 ; new_pix = _mm_add_epi16(new_pix, old_sum_128);
    vpaddw ymm2, ymm3 ; new_pix = _mm_add_epi16(new_pix, temp);
    vperm2i128 ymm1, ymm3, ymm6, 0x21
    vpsrldq ymm1, ymm1, 14; temp = temp << 2 * 8;
    vmovdqu ymm4, [r4 + r6 * 2] ; __m128i old_col_pix = *(col_pix_buf+x);
    vmovdqu [r4 + r6 * 2], ymm2 ; *(col_pix_buf+x) = new_pix ;
    vmovdqu ymm5, [r12 + r6 * 2] ; __m128i old_col_sum = *(col_pix_sum+x);
    vpaddw ymm3, ymm2, ymm4
    vmovdqu [r12 + r6 * 2], ymm3 ; *(col_sum_buf+x) = temp;
    vpaddw ymm5, ymm3 ; old_col_sum = _mm_add_epi16(old_col_sum, temp);
    vpsrlw ymm5, 4 ; old_col_sum = old_col_sum >> 4;
    vpackuswb ymm5, ymm5 ; old_col_sum = _mm_packus_epi16(old_col_sum, old_col_sum);
    vpermq ymm5, ymm5, 11_01_10_00b
    vmovdqu [r13 + r6 - 1], xmm5 ; *(dst+x-1) = old_col_sum;
    add r6, 16; x += 16;
    cmp r6, r14; x < ((w - 2) & (~15));
    jl .width_loop
    movzx r8, byte [r7 + r6 - 1] ; old_pix = src[x-1];
    movzx r9, byte [r7 + r6 - 2] ; old_sum = old_pix + src[x-2];
    add r9, r8
    jmp .final_width_check
.final_width_loop:
    movzx r10, byte [r7 + r6] ; temp1 = src[x];
    lea r11, [r8 + r10] ; temp2 = old_pix + temp1;
    mov r8, r10 ; old_pix = temp1;
    lea r10, [r9 + r11] ; temp1 = old_sum + temp2;
    mov r9, r11 ; old_sum = temp2;
    movzx r11, word [r4 + r6 * 2] ; temp2 = col_pix_buf[x];
    add r11, r10 ; temp2 += temp1;
    mov word [r4 + r6 * 2], r10w ; col_pix_buf[x] = temp1;
    movzx r10, word [r12 + r6 * 2] ; temp1 = col_sum_buf[x];
    add r10, r11 ; temp1 += temp2;
    shr r10, 4 ; temp1 >>= 4;
    mov byte [r13 + r6 - 1], r10b ; dst[x-1] = temp1
    mov [r12 + r6 * 2], r11w ; col_sum_buf[x] = temp2;
    inc r6 ; x++
.final_width_check:
    cmp r6, r1 ; x < w
    jl .final_width_loop
    inc r5 ; y++;
    cmp r5, r2 ; y < h;
    jl .height_loop
    RET