diffusion-rs-sys 0.1.20

Rust bindings for stable-diffusion.cpp (FFI bindings)
Documentation 
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
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292

// Copyright 2014 Google Inc. All Rights Reserved.
//
// Use of this source code is governed by a BSD-style license
// that can be found in the COPYING file in the root of the source
// tree. An additional intellectual property rights grant can be found
// in the file PATENTS. All contributing project authors may
// be found in the AUTHORS file in the root of the source tree.
// -----------------------------------------------------------------------------
//
// MIPS version of rescaling functions
//
// Author(s): Djordje Pesut (djordje.pesut@imgtec.com)

#include "src/dsp/dsp.h"

#if defined(WEBP_USE_MIPS32) && !defined(WEBP_REDUCE_SIZE)

#include <assert.h>

#include "src/utils/rescaler_utils.h"

//------------------------------------------------------------------------------
// Row import

static void ImportRowShrink_MIPS32(WebPRescaler* WEBP_RESTRICT const wrk,
                                   const uint8_t* WEBP_RESTRICT src) {
  const int x_stride = wrk->num_channels;
  const int x_out_max = wrk->dst_width * wrk->num_channels;
  const int fx_scale = wrk->fx_scale;
  const int x_add = wrk->x_add;
  const int x_sub = wrk->x_sub;
  const int x_stride1 = x_stride << 2;
  int channel;
  assert(!wrk->x_expand);
  assert(!WebPRescalerInputDone(wrk));

  for (channel = 0; channel < x_stride; ++channel) {
    const uint8_t* src1 = src + channel;
    rescaler_t* frow = wrk->frow + channel;
    int temp1, temp2, temp3;
    int base, frac, sum;
    int accum, accum1;
    int loop_c = x_out_max - channel;

    __asm__ volatile(
        "li     %[temp1],   0x8000                    \n\t"
        "li     %[temp2],   0x10000                   \n\t"
        "li     %[sum],     0                         \n\t"
        "li     %[accum],   0                         \n\t"
        "1:                                             \n\t"
        "addu   %[accum],   %[accum],   %[x_add]      \n\t"
        "li     %[base],    0                         \n\t"
        "blez   %[accum],   3f                        \n\t"
        "2:                                             \n\t"
        "lbu    %[base],    0(%[src1])                \n\t"
        "subu   %[accum],   %[accum],   %[x_sub]      \n\t"
        "addu   %[src1],    %[src1],    %[x_stride]   \n\t"
        "addu   %[sum],     %[sum],     %[base]       \n\t"
        "bgtz   %[accum],   2b                        \n\t"
        "3:                                             \n\t"
        "negu   %[accum1],  %[accum]                  \n\t"
        "mul    %[frac],    %[base],    %[accum1]     \n\t"
        "mul    %[temp3],   %[sum],     %[x_sub]      \n\t"
        "subu   %[loop_c],  %[loop_c],  %[x_stride]   \n\t"
        "mult   %[temp1],   %[temp2]                  \n\t"
        "maddu  %[frac],    %[fx_scale]               \n\t"
        "mfhi   %[sum]                                \n\t"
        "subu   %[temp3],   %[temp3],   %[frac]       \n\t"
        "sw     %[temp3],   0(%[frow])                \n\t"
        "addu   %[frow],    %[frow],    %[x_stride1]  \n\t"
        "bgtz   %[loop_c],  1b                        \n\t"
        : [accum] "=&r"(accum), [src1] "+r"(src1), [temp3] "=&r"(temp3),
          [sum] "=&r"(sum), [base] "=&r"(base), [frac] "=&r"(frac),
          [frow] "+r"(frow), [accum1] "=&r"(accum1), [temp2] "=&r"(temp2),
          [temp1] "=&r"(temp1)
        : [x_stride] "r"(x_stride), [fx_scale] "r"(fx_scale),
          [x_sub] "r"(x_sub), [x_add] "r"(x_add), [loop_c] "r"(loop_c),
          [x_stride1] "r"(x_stride1)
        : "memory", "hi", "lo");
    assert(accum == 0);
  }
}

static void ImportRowExpand_MIPS32(WebPRescaler* WEBP_RESTRICT const wrk,
                                   const uint8_t* WEBP_RESTRICT src) {
  const int x_stride = wrk->num_channels;
  const int x_out_max = wrk->dst_width * wrk->num_channels;
  const int x_add = wrk->x_add;
  const int x_sub = wrk->x_sub;
  const int src_width = wrk->src_width;
  const int x_stride1 = x_stride << 2;
  int channel;
  assert(wrk->x_expand);
  assert(!WebPRescalerInputDone(wrk));

  for (channel = 0; channel < x_stride; ++channel) {
    const uint8_t* src1 = src + channel;
    rescaler_t* frow = wrk->frow + channel;
    int temp1, temp2, temp3, temp4;
    int frac;
    int accum;
    int x_out = channel;

    __asm__ volatile(
        "addiu  %[temp3],   %[src_width], -1            \n\t"
        "lbu    %[temp2],   0(%[src1])                  \n\t"
        "addu   %[src1],    %[src1],      %[x_stride]   \n\t"
        "bgtz   %[temp3],   0f                          \n\t"
        "addiu  %[temp1],   %[temp2],     0             \n\t"
        "b      3f                                      \n\t"
        "0:                                               \n\t"
        "lbu    %[temp1],   0(%[src1])                  \n\t"
        "3:                                               \n\t"
        "addiu  %[accum],   %[x_add],     0             \n\t"
        "1:                                               \n\t"
        "subu   %[temp3],   %[temp2],     %[temp1]      \n\t"
        "mul    %[temp3],   %[temp3],     %[accum]      \n\t"
        "mul    %[temp4],   %[temp1],     %[x_add]      \n\t"
        "addu   %[temp3],   %[temp4],     %[temp3]      \n\t"
        "sw     %[temp3],   0(%[frow])                  \n\t"
        "addu   %[frow],    %[frow],      %[x_stride1]  \n\t"
        "addu   %[x_out],   %[x_out],     %[x_stride]   \n\t"
        "subu   %[temp3],   %[x_out],     %[x_out_max]  \n\t"
        "bgez   %[temp3],   2f                          \n\t"
        "subu   %[accum],   %[accum],     %[x_sub]      \n\t"
        "bgez   %[accum],   4f                          \n\t"
        "addiu  %[temp2],   %[temp1],     0             \n\t"
        "addu   %[src1],    %[src1],      %[x_stride]   \n\t"
        "lbu    %[temp1],   0(%[src1])                  \n\t"
        "addu   %[accum],   %[accum],     %[x_add]      \n\t"
        "4:                                               \n\t"
        "b      1b                                      \n\t"
        "2:                                               \n\t"
        : [src1] "+r"(src1), [accum] "=&r"(accum), [temp1] "=&r"(temp1),
          [temp2] "=&r"(temp2), [temp3] "=&r"(temp3), [temp4] "=&r"(temp4),
          [x_out] "+r"(x_out), [frac] "=&r"(frac), [frow] "+r"(frow)
        : [x_stride] "r"(x_stride), [x_add] "r"(x_add), [x_sub] "r"(x_sub),
          [x_stride1] "r"(x_stride1), [src_width] "r"(src_width),
          [x_out_max] "r"(x_out_max)
        : "memory", "hi", "lo");
    assert(wrk->x_sub == 0 /* <- special case for src_width=1 */ || accum == 0);
  }
}

//------------------------------------------------------------------------------
// Row export

static void ExportRowExpand_MIPS32(WebPRescaler* const wrk) {
  uint8_t* dst = wrk->dst;
  rescaler_t* irow = wrk->irow;
  const int x_out_max = wrk->dst_width * wrk->num_channels;
  const rescaler_t* frow = wrk->frow;
  int temp0, temp1, temp3, temp4, temp5, loop_end;
  const int temp2 = (int)wrk->fy_scale;
  const int temp6 = x_out_max << 2;
  assert(!WebPRescalerOutputDone(wrk));
  assert(wrk->y_accum <= 0);
  assert(wrk->y_expand);
  assert(wrk->y_sub != 0);
  if (wrk->y_accum == 0) {
    __asm__ volatile(
        "li       %[temp3],    0x10000                    \n\t"
        "li       %[temp4],    0x8000                     \n\t"
        "addu     %[loop_end], %[frow],     %[temp6]      \n\t"
        "1:                                                 \n\t"
        "lw       %[temp0],    0(%[frow])                 \n\t"
        "addiu    %[dst],      %[dst],      1             \n\t"
        "addiu    %[frow],     %[frow],     4             \n\t"
        "mult     %[temp3],    %[temp4]                   \n\t"
        "maddu    %[temp0],    %[temp2]                   \n\t"
        "mfhi     %[temp5]                                \n\t"
        "sb       %[temp5],    -1(%[dst])                 \n\t"
        "bne      %[frow],     %[loop_end], 1b            \n\t"
        : [temp0] "=&r"(temp0), [temp1] "=&r"(temp1), [temp3] "=&r"(temp3),
          [temp4] "=&r"(temp4), [temp5] "=&r"(temp5), [frow] "+r"(frow),
          [dst] "+r"(dst), [loop_end] "=&r"(loop_end)
        : [temp2] "r"(temp2), [temp6] "r"(temp6)
        : "memory", "hi", "lo");
  } else {
    const uint32_t B = WEBP_RESCALER_FRAC(-wrk->y_accum, wrk->y_sub);
    const uint32_t A = (uint32_t)(WEBP_RESCALER_ONE - B);
    __asm__ volatile(
        "li       %[temp3],    0x10000                    \n\t"
        "li       %[temp4],    0x8000                     \n\t"
        "addu     %[loop_end], %[frow],     %[temp6]      \n\t"
        "1:                                                 \n\t"
        "lw       %[temp0],    0(%[frow])                 \n\t"
        "lw       %[temp1],    0(%[irow])                 \n\t"
        "addiu    %[dst],      %[dst],      1             \n\t"
        "mult     %[temp3],    %[temp4]                   \n\t"
        "maddu    %[A],        %[temp0]                   \n\t"
        "maddu    %[B],        %[temp1]                   \n\t"
        "addiu    %[frow],     %[frow],     4             \n\t"
        "addiu    %[irow],     %[irow],     4             \n\t"
        "mfhi     %[temp5]                                \n\t"
        "mult     %[temp3],    %[temp4]                   \n\t"
        "maddu    %[temp5],    %[temp2]                   \n\t"
        "mfhi     %[temp5]                                \n\t"
        "sb       %[temp5],    -1(%[dst])                 \n\t"
        "bne      %[frow],     %[loop_end], 1b            \n\t"
        : [temp0] "=&r"(temp0), [temp1] "=&r"(temp1), [temp3] "=&r"(temp3),
          [temp4] "=&r"(temp4), [temp5] "=&r"(temp5), [frow] "+r"(frow),
          [irow] "+r"(irow), [dst] "+r"(dst), [loop_end] "=&r"(loop_end)
        : [temp2] "r"(temp2), [temp6] "r"(temp6), [A] "r"(A), [B] "r"(B)
        : "memory", "hi", "lo");
  }
}

#if 0   // disabled for now. TODO(skal): make match the C-code
static void ExportRowShrink_MIPS32(WebPRescaler* const wrk) {
  const int x_out_max = wrk->dst_width * wrk->num_channels;
  uint8_t* dst = wrk->dst;
  rescaler_t* irow = wrk->irow;
  const rescaler_t* frow = wrk->frow;
  const int yscale = wrk->fy_scale * (-wrk->y_accum);
  int temp0, temp1, temp3, temp4, temp5, loop_end;
  const int temp2 = (int)wrk->fxy_scale;
  const int temp6 = x_out_max << 2;

  assert(!WebPRescalerOutputDone(wrk));
  assert(wrk->y_accum <= 0);
  assert(!wrk->y_expand);
  assert(wrk->fxy_scale != 0);
  if (yscale) {
    __asm__ volatile(
      "li       %[temp3],    0x10000                    \n\t"
      "li       %[temp4],    0x8000                     \n\t"
      "addu     %[loop_end], %[frow],     %[temp6]      \n\t"
    "1:                                                 \n\t"
      "lw       %[temp0],    0(%[frow])                 \n\t"
      "mult     %[temp3],    %[temp4]                   \n\t"
      "addiu    %[frow],     %[frow],     4             \n\t"
      "maddu    %[temp0],    %[yscale]                  \n\t"
      "mfhi     %[temp1]                                \n\t"
      "lw       %[temp0],    0(%[irow])                 \n\t"
      "addiu    %[dst],      %[dst],      1             \n\t"
      "addiu    %[irow],     %[irow],     4             \n\t"
      "subu     %[temp0],    %[temp0],    %[temp1]      \n\t"
      "mult     %[temp3],    %[temp4]                   \n\t"
      "maddu    %[temp0],    %[temp2]                   \n\t"
      "mfhi     %[temp5]                                \n\t"
      "sw       %[temp1],    -4(%[irow])                \n\t"
      "sb       %[temp5],    -1(%[dst])                 \n\t"
      "bne      %[frow],     %[loop_end], 1b            \n\t"
      : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp3]"=&r"(temp3),
        [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [frow]"+r"(frow),
        [irow]"+r"(irow), [dst]"+r"(dst), [loop_end]"=&r"(loop_end)
      : [temp2]"r"(temp2), [yscale]"r"(yscale), [temp6]"r"(temp6)
      : "memory", "hi", "lo"
    );
  } else {
    __asm__ volatile(
      "li       %[temp3],    0x10000                    \n\t"
      "li       %[temp4],    0x8000                     \n\t"
      "addu     %[loop_end], %[irow],     %[temp6]      \n\t"
    "1:                                                 \n\t"
      "lw       %[temp0],    0(%[irow])                 \n\t"
      "addiu    %[dst],      %[dst],      1             \n\t"
      "addiu    %[irow],     %[irow],     4             \n\t"
      "mult     %[temp3],    %[temp4]                   \n\t"
      "maddu    %[temp0],    %[temp2]                   \n\t"
      "mfhi     %[temp5]                                \n\t"
      "sw       $zero,       -4(%[irow])                \n\t"
      "sb       %[temp5],    -1(%[dst])                 \n\t"
      "bne      %[irow],     %[loop_end], 1b            \n\t"
      : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp3]"=&r"(temp3),
        [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [irow]"+r"(irow),
        [dst]"+r"(dst), [loop_end]"=&r"(loop_end)
      : [temp2]"r"(temp2), [temp6]"r"(temp6)
      : "memory", "hi", "lo"
    );
  }
}
#endif  // 0

//------------------------------------------------------------------------------
// Entry point

extern void WebPRescalerDspInitMIPS32(void);

WEBP_TSAN_IGNORE_FUNCTION void WebPRescalerDspInitMIPS32(void) {
  WebPRescalerImportRowExpand = ImportRowExpand_MIPS32;
  WebPRescalerImportRowShrink = ImportRowShrink_MIPS32;
  WebPRescalerExportRowExpand = ExportRowExpand_MIPS32;
  //  WebPRescalerExportRowShrink = ExportRowShrink_MIPS32;
}

#else  // !WEBP_USE_MIPS32

WEBP_DSP_INIT_STUB(WebPRescalerDspInitMIPS32)

#endif  // WEBP_USE_MIPS32