1// Copyright 2014 Google Inc. All Rights Reserved.
2//
3// Use of this source code is governed by a BSD-style license
4// that can be found in the COPYING file in the root of the source
5// tree. An additional intellectual property rights grant can be found
6// in the file PATENTS. All contributing project authors may
7// be found in the AUTHORS file in the root of the source tree.
8// -----------------------------------------------------------------------------
9//
10// MIPS version of dsp functions
11//
12// Author(s): Djordje Pesut (djordje.pesut@imgtec.com)
13// Jovan Zelincevic (jovan.zelincevic@imgtec.com)
14
15#include "src/dsp/dsp.h"
16
17#if defined(WEBP_USE_MIPS32)
18
19#include "src/dsp/mips_macro.h"
20
21static const int kC1 = 20091 + (1 << 16);
22static const int kC2 = 35468;
23
24static WEBP_INLINE int abs_mips32(int x) {
25 const int sign = x >> 31;
26 return (x ^ sign) - sign;
27}
28
29// 4 pixels in, 2 pixels out
30static WEBP_INLINE void do_filter2(uint8_t* p, int step) {
31 const int p1 = p[-2 * step], p0 = p[-step], q0 = p[0], q1 = p[step];
32 const int a = 3 * (q0 - p0) + VP8ksclip1[p1 - q1];
33 const int a1 = VP8ksclip2[(a + 4) >> 3];
34 const int a2 = VP8ksclip2[(a + 3) >> 3];
35 p[-step] = VP8kclip1[p0 + a2];
36 p[ 0] = VP8kclip1[q0 - a1];
37}
38
39// 4 pixels in, 4 pixels out
40static WEBP_INLINE void do_filter4(uint8_t* p, int step) {
41 const int p1 = p[-2 * step], p0 = p[-step], q0 = p[0], q1 = p[step];
42 const int a = 3 * (q0 - p0);
43 const int a1 = VP8ksclip2[(a + 4) >> 3];
44 const int a2 = VP8ksclip2[(a + 3) >> 3];
45 const int a3 = (a1 + 1) >> 1;
46 p[-2 * step] = VP8kclip1[p1 + a3];
47 p[- step] = VP8kclip1[p0 + a2];
48 p[ 0] = VP8kclip1[q0 - a1];
49 p[ step] = VP8kclip1[q1 - a3];
50}
51
52// 6 pixels in, 6 pixels out
53static WEBP_INLINE void do_filter6(uint8_t* p, int step) {
54 const int p2 = p[-3 * step], p1 = p[-2 * step], p0 = p[-step];
55 const int q0 = p[0], q1 = p[step], q2 = p[2 * step];
56 const int a = VP8ksclip1[3 * (q0 - p0) + VP8ksclip1[p1 - q1]];
57 // a is in [-128,127], a1 in [-27,27], a2 in [-18,18] and a3 in [-9,9]
58 const int a1 = (27 * a + 63) >> 7; // eq. to ((3 * a + 7) * 9) >> 7
59 const int a2 = (18 * a + 63) >> 7; // eq. to ((2 * a + 7) * 9) >> 7
60 const int a3 = (9 * a + 63) >> 7; // eq. to ((1 * a + 7) * 9) >> 7
61 p[-3 * step] = VP8kclip1[p2 + a3];
62 p[-2 * step] = VP8kclip1[p1 + a2];
63 p[- step] = VP8kclip1[p0 + a1];
64 p[ 0] = VP8kclip1[q0 - a1];
65 p[ step] = VP8kclip1[q1 - a2];
66 p[ 2 * step] = VP8kclip1[q2 - a3];
67}
68
69static WEBP_INLINE int hev(const uint8_t* p, int step, int thresh) {
70 const int p1 = p[-2 * step], p0 = p[-step], q0 = p[0], q1 = p[step];
71 return (abs_mips32(p1 - p0) > thresh) || (abs_mips32(q1 - q0) > thresh);
72}
73
74static WEBP_INLINE int needs_filter(const uint8_t* p, int step, int t) {
75 const int p1 = p[-2 * step], p0 = p[-step], q0 = p[0], q1 = p[step];
76 return ((4 * abs_mips32(p0 - q0) + abs_mips32(p1 - q1)) <= t);
77}
78
79static WEBP_INLINE int needs_filter2(const uint8_t* p,
80 int step, int t, int it) {
81 const int p3 = p[-4 * step], p2 = p[-3 * step];
82 const int p1 = p[-2 * step], p0 = p[-step];
83 const int q0 = p[0], q1 = p[step], q2 = p[2 * step], q3 = p[3 * step];
84 if ((4 * abs_mips32(p0 - q0) + abs_mips32(p1 - q1)) > t) {
85 return 0;
86 }
87 return abs_mips32(p3 - p2) <= it && abs_mips32(p2 - p1) <= it &&
88 abs_mips32(p1 - p0) <= it && abs_mips32(q3 - q2) <= it &&
89 abs_mips32(q2 - q1) <= it && abs_mips32(q1 - q0) <= it;
90}
91
92static WEBP_INLINE void FilterLoop26(uint8_t* p,
93 int hstride, int vstride, int size,
94 int thresh, int ithresh, int hev_thresh) {
95 const int thresh2 = 2 * thresh + 1;
96 while (size-- > 0) {
97 if (needs_filter2(p, hstride, thresh2, ithresh)) {
98 if (hev(p, hstride, hev_thresh)) {
99 do_filter2(p, hstride);
100 } else {
101 do_filter6(p, hstride);
102 }
103 }
104 p += vstride;
105 }
106}
107
108static WEBP_INLINE void FilterLoop24(uint8_t* p,
109 int hstride, int vstride, int size,
110 int thresh, int ithresh, int hev_thresh) {
111 const int thresh2 = 2 * thresh + 1;
112 while (size-- > 0) {
113 if (needs_filter2(p, hstride, thresh2, ithresh)) {
114 if (hev(p, hstride, hev_thresh)) {
115 do_filter2(p, hstride);
116 } else {
117 do_filter4(p, hstride);
118 }
119 }
120 p += vstride;
121 }
122}
123
124// on macroblock edges
125static void VFilter16(uint8_t* p, int stride,
126 int thresh, int ithresh, int hev_thresh) {
127 FilterLoop26(p, stride, 1, 16, thresh, ithresh, hev_thresh);
128}
129
130static void HFilter16(uint8_t* p, int stride,
131 int thresh, int ithresh, int hev_thresh) {
132 FilterLoop26(p, 1, stride, 16, thresh, ithresh, hev_thresh);
133}
134
135// 8-pixels wide variant, for chroma filtering
136static void VFilter8(uint8_t* u, uint8_t* v, int stride,
137 int thresh, int ithresh, int hev_thresh) {
138 FilterLoop26(u, stride, 1, 8, thresh, ithresh, hev_thresh);
139 FilterLoop26(v, stride, 1, 8, thresh, ithresh, hev_thresh);
140}
141
142static void HFilter8(uint8_t* u, uint8_t* v, int stride,
143 int thresh, int ithresh, int hev_thresh) {
144 FilterLoop26(u, 1, stride, 8, thresh, ithresh, hev_thresh);
145 FilterLoop26(v, 1, stride, 8, thresh, ithresh, hev_thresh);
146}
147
148static void VFilter8i(uint8_t* u, uint8_t* v, int stride,
149 int thresh, int ithresh, int hev_thresh) {
150 FilterLoop24(u + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh);
151 FilterLoop24(v + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh);
152}
153
154static void HFilter8i(uint8_t* u, uint8_t* v, int stride,
155 int thresh, int ithresh, int hev_thresh) {
156 FilterLoop24(u + 4, 1, stride, 8, thresh, ithresh, hev_thresh);
157 FilterLoop24(v + 4, 1, stride, 8, thresh, ithresh, hev_thresh);
158}
159
160// on three inner edges
161static void VFilter16i(uint8_t* p, int stride,
162 int thresh, int ithresh, int hev_thresh) {
163 int k;
164 for (k = 3; k > 0; --k) {
165 p += 4 * stride;
166 FilterLoop24(p, stride, 1, 16, thresh, ithresh, hev_thresh);
167 }
168}
169
170static void HFilter16i(uint8_t* p, int stride,
171 int thresh, int ithresh, int hev_thresh) {
172 int k;
173 for (k = 3; k > 0; --k) {
174 p += 4;
175 FilterLoop24(p, 1, stride, 16, thresh, ithresh, hev_thresh);
176 }
177}
178
179//------------------------------------------------------------------------------
180// Simple In-loop filtering (Paragraph 15.2)
181
182static void SimpleVFilter16(uint8_t* p, int stride, int thresh) {
183 int i;
184 const int thresh2 = 2 * thresh + 1;
185 for (i = 0; i < 16; ++i) {
186 if (needs_filter(p + i, stride, thresh2)) {
187 do_filter2(p + i, stride);
188 }
189 }
190}
191
192static void SimpleHFilter16(uint8_t* p, int stride, int thresh) {
193 int i;
194 const int thresh2 = 2 * thresh + 1;
195 for (i = 0; i < 16; ++i) {
196 if (needs_filter(p + i * stride, 1, thresh2)) {
197 do_filter2(p + i * stride, 1);
198 }
199 }
200}
201
202static void SimpleVFilter16i(uint8_t* p, int stride, int thresh) {
203 int k;
204 for (k = 3; k > 0; --k) {
205 p += 4 * stride;
206 SimpleVFilter16(p, stride, thresh);
207 }
208}
209
210static void SimpleHFilter16i(uint8_t* p, int stride, int thresh) {
211 int k;
212 for (k = 3; k > 0; --k) {
213 p += 4;
214 SimpleHFilter16(p, stride, thresh);
215 }
216}
217
218static void TransformOne(const int16_t* in, uint8_t* dst) {
219 int temp0, temp1, temp2, temp3, temp4;
220 int temp5, temp6, temp7, temp8, temp9;
221 int temp10, temp11, temp12, temp13, temp14;
222 int temp15, temp16, temp17, temp18;
223 int16_t* p_in = (int16_t*)in;
224
225 // loops unrolled and merged to avoid usage of tmp buffer
226 // and to reduce number of stalls. MUL macro is written
227 // in assembler and inlined
228 __asm__ volatile(
229 "lh %[temp0], 0(%[in]) \n\t"
230 "lh %[temp8], 16(%[in]) \n\t"
231 "lh %[temp4], 8(%[in]) \n\t"
232 "lh %[temp12], 24(%[in]) \n\t"
233 "addu %[temp16], %[temp0], %[temp8] \n\t"
234 "subu %[temp0], %[temp0], %[temp8] \n\t"
235 "mul %[temp8], %[temp4], %[kC2] \n\t"
236 "mul %[temp17], %[temp12], %[kC1] \n\t"
237 "mul %[temp4], %[temp4], %[kC1] \n\t"
238 "mul %[temp12], %[temp12], %[kC2] \n\t"
239 "lh %[temp1], 2(%[in]) \n\t"
240 "lh %[temp5], 10(%[in]) \n\t"
241 "lh %[temp9], 18(%[in]) \n\t"
242 "lh %[temp13], 26(%[in]) \n\t"
243 "sra %[temp8], %[temp8], 16 \n\t"
244 "sra %[temp17], %[temp17], 16 \n\t"
245 "sra %[temp4], %[temp4], 16 \n\t"
246 "sra %[temp12], %[temp12], 16 \n\t"
247 "lh %[temp2], 4(%[in]) \n\t"
248 "lh %[temp6], 12(%[in]) \n\t"
249 "lh %[temp10], 20(%[in]) \n\t"
250 "lh %[temp14], 28(%[in]) \n\t"
251 "subu %[temp17], %[temp8], %[temp17] \n\t"
252 "addu %[temp4], %[temp4], %[temp12] \n\t"
253 "addu %[temp8], %[temp16], %[temp4] \n\t"
254 "subu %[temp4], %[temp16], %[temp4] \n\t"
255 "addu %[temp16], %[temp1], %[temp9] \n\t"
256 "subu %[temp1], %[temp1], %[temp9] \n\t"
257 "lh %[temp3], 6(%[in]) \n\t"
258 "lh %[temp7], 14(%[in]) \n\t"
259 "lh %[temp11], 22(%[in]) \n\t"
260 "lh %[temp15], 30(%[in]) \n\t"
261 "addu %[temp12], %[temp0], %[temp17] \n\t"
262 "subu %[temp0], %[temp0], %[temp17] \n\t"
263 "mul %[temp9], %[temp5], %[kC2] \n\t"
264 "mul %[temp17], %[temp13], %[kC1] \n\t"
265 "mul %[temp5], %[temp5], %[kC1] \n\t"
266 "mul %[temp13], %[temp13], %[kC2] \n\t"
267 "sra %[temp9], %[temp9], 16 \n\t"
268 "sra %[temp17], %[temp17], 16 \n\t"
269 "subu %[temp17], %[temp9], %[temp17] \n\t"
270 "sra %[temp5], %[temp5], 16 \n\t"
271 "sra %[temp13], %[temp13], 16 \n\t"
272 "addu %[temp5], %[temp5], %[temp13] \n\t"
273 "addu %[temp13], %[temp1], %[temp17] \n\t"
274 "subu %[temp1], %[temp1], %[temp17] \n\t"
275 "mul %[temp17], %[temp14], %[kC1] \n\t"
276 "mul %[temp14], %[temp14], %[kC2] \n\t"
277 "addu %[temp9], %[temp16], %[temp5] \n\t"
278 "subu %[temp5], %[temp16], %[temp5] \n\t"
279 "addu %[temp16], %[temp2], %[temp10] \n\t"
280 "subu %[temp2], %[temp2], %[temp10] \n\t"
281 "mul %[temp10], %[temp6], %[kC2] \n\t"
282 "mul %[temp6], %[temp6], %[kC1] \n\t"
283 "sra %[temp17], %[temp17], 16 \n\t"
284 "sra %[temp14], %[temp14], 16 \n\t"
285 "sra %[temp10], %[temp10], 16 \n\t"
286 "sra %[temp6], %[temp6], 16 \n\t"
287 "subu %[temp17], %[temp10], %[temp17] \n\t"
288 "addu %[temp6], %[temp6], %[temp14] \n\t"
289 "addu %[temp10], %[temp16], %[temp6] \n\t"
290 "subu %[temp6], %[temp16], %[temp6] \n\t"
291 "addu %[temp14], %[temp2], %[temp17] \n\t"
292 "subu %[temp2], %[temp2], %[temp17] \n\t"
293 "mul %[temp17], %[temp15], %[kC1] \n\t"
294 "mul %[temp15], %[temp15], %[kC2] \n\t"
295 "addu %[temp16], %[temp3], %[temp11] \n\t"
296 "subu %[temp3], %[temp3], %[temp11] \n\t"
297 "mul %[temp11], %[temp7], %[kC2] \n\t"
298 "mul %[temp7], %[temp7], %[kC1] \n\t"
299 "addiu %[temp8], %[temp8], 4 \n\t"
300 "addiu %[temp12], %[temp12], 4 \n\t"
301 "addiu %[temp0], %[temp0], 4 \n\t"
302 "addiu %[temp4], %[temp4], 4 \n\t"
303 "sra %[temp17], %[temp17], 16 \n\t"
304 "sra %[temp15], %[temp15], 16 \n\t"
305 "sra %[temp11], %[temp11], 16 \n\t"
306 "sra %[temp7], %[temp7], 16 \n\t"
307 "subu %[temp17], %[temp11], %[temp17] \n\t"
308 "addu %[temp7], %[temp7], %[temp15] \n\t"
309 "addu %[temp15], %[temp3], %[temp17] \n\t"
310 "subu %[temp3], %[temp3], %[temp17] \n\t"
311 "addu %[temp11], %[temp16], %[temp7] \n\t"
312 "subu %[temp7], %[temp16], %[temp7] \n\t"
313 "addu %[temp16], %[temp8], %[temp10] \n\t"
314 "subu %[temp8], %[temp8], %[temp10] \n\t"
315 "mul %[temp10], %[temp9], %[kC2] \n\t"
316 "mul %[temp17], %[temp11], %[kC1] \n\t"
317 "mul %[temp9], %[temp9], %[kC1] \n\t"
318 "mul %[temp11], %[temp11], %[kC2] \n\t"
319 "sra %[temp10], %[temp10], 16 \n\t"
320 "sra %[temp17], %[temp17], 16 \n\t"
321 "sra %[temp9], %[temp9], 16 \n\t"
322 "sra %[temp11], %[temp11], 16 \n\t"
323 "subu %[temp17], %[temp10], %[temp17] \n\t"
324 "addu %[temp11], %[temp9], %[temp11] \n\t"
325 "addu %[temp10], %[temp12], %[temp14] \n\t"
326 "subu %[temp12], %[temp12], %[temp14] \n\t"
327 "mul %[temp14], %[temp13], %[kC2] \n\t"
328 "mul %[temp9], %[temp15], %[kC1] \n\t"
329 "mul %[temp13], %[temp13], %[kC1] \n\t"
330 "mul %[temp15], %[temp15], %[kC2] \n\t"
331 "sra %[temp14], %[temp14], 16 \n\t"
332 "sra %[temp9], %[temp9], 16 \n\t"
333 "sra %[temp13], %[temp13], 16 \n\t"
334 "sra %[temp15], %[temp15], 16 \n\t"
335 "subu %[temp9], %[temp14], %[temp9] \n\t"
336 "addu %[temp15], %[temp13], %[temp15] \n\t"
337 "addu %[temp14], %[temp0], %[temp2] \n\t"
338 "subu %[temp0], %[temp0], %[temp2] \n\t"
339 "mul %[temp2], %[temp1], %[kC2] \n\t"
340 "mul %[temp13], %[temp3], %[kC1] \n\t"
341 "mul %[temp1], %[temp1], %[kC1] \n\t"
342 "mul %[temp3], %[temp3], %[kC2] \n\t"
343 "sra %[temp2], %[temp2], 16 \n\t"
344 "sra %[temp13], %[temp13], 16 \n\t"
345 "sra %[temp1], %[temp1], 16 \n\t"
346 "sra %[temp3], %[temp3], 16 \n\t"
347 "subu %[temp13], %[temp2], %[temp13] \n\t"
348 "addu %[temp3], %[temp1], %[temp3] \n\t"
349 "addu %[temp2], %[temp4], %[temp6] \n\t"
350 "subu %[temp4], %[temp4], %[temp6] \n\t"
351 "mul %[temp6], %[temp5], %[kC2] \n\t"
352 "mul %[temp1], %[temp7], %[kC1] \n\t"
353 "mul %[temp5], %[temp5], %[kC1] \n\t"
354 "mul %[temp7], %[temp7], %[kC2] \n\t"
355 "sra %[temp6], %[temp6], 16 \n\t"
356 "sra %[temp1], %[temp1], 16 \n\t"
357 "sra %[temp5], %[temp5], 16 \n\t"
358 "sra %[temp7], %[temp7], 16 \n\t"
359 "subu %[temp1], %[temp6], %[temp1] \n\t"
360 "addu %[temp7], %[temp5], %[temp7] \n\t"
361 "addu %[temp5], %[temp16], %[temp11] \n\t"
362 "subu %[temp16], %[temp16], %[temp11] \n\t"
363 "addu %[temp11], %[temp8], %[temp17] \n\t"
364 "subu %[temp8], %[temp8], %[temp17] \n\t"
365 "sra %[temp5], %[temp5], 3 \n\t"
366 "sra %[temp16], %[temp16], 3 \n\t"
367 "sra %[temp11], %[temp11], 3 \n\t"
368 "sra %[temp8], %[temp8], 3 \n\t"
369 "addu %[temp17], %[temp10], %[temp15] \n\t"
370 "subu %[temp10], %[temp10], %[temp15] \n\t"
371 "addu %[temp15], %[temp12], %[temp9] \n\t"
372 "subu %[temp12], %[temp12], %[temp9] \n\t"
373 "sra %[temp17], %[temp17], 3 \n\t"
374 "sra %[temp10], %[temp10], 3 \n\t"
375 "sra %[temp15], %[temp15], 3 \n\t"
376 "sra %[temp12], %[temp12], 3 \n\t"
377 "addu %[temp9], %[temp14], %[temp3] \n\t"
378 "subu %[temp14], %[temp14], %[temp3] \n\t"
379 "addu %[temp3], %[temp0], %[temp13] \n\t"
380 "subu %[temp0], %[temp0], %[temp13] \n\t"
381 "sra %[temp9], %[temp9], 3 \n\t"
382 "sra %[temp14], %[temp14], 3 \n\t"
383 "sra %[temp3], %[temp3], 3 \n\t"
384 "sra %[temp0], %[temp0], 3 \n\t"
385 "addu %[temp13], %[temp2], %[temp7] \n\t"
386 "subu %[temp2], %[temp2], %[temp7] \n\t"
387 "addu %[temp7], %[temp4], %[temp1] \n\t"
388 "subu %[temp4], %[temp4], %[temp1] \n\t"
389 "sra %[temp13], %[temp13], 3 \n\t"
390 "sra %[temp2], %[temp2], 3 \n\t"
391 "sra %[temp7], %[temp7], 3 \n\t"
392 "sra %[temp4], %[temp4], 3 \n\t"
393 "addiu %[temp6], $zero, 255 \n\t"
394 "lbu %[temp1], 0+0*" XSTR(BPS) "(%[dst]) \n\t"
395 "addu %[temp1], %[temp1], %[temp5] \n\t"
396 "sra %[temp5], %[temp1], 8 \n\t"
397 "sra %[temp18], %[temp1], 31 \n\t"
398 "beqz %[temp5], 1f \n\t"
399 "xor %[temp1], %[temp1], %[temp1] \n\t"
400 "movz %[temp1], %[temp6], %[temp18] \n\t"
401 "1: \n\t"
402 "lbu %[temp18], 1+0*" XSTR(BPS) "(%[dst]) \n\t"
403 "sb %[temp1], 0+0*" XSTR(BPS) "(%[dst]) \n\t"
404 "addu %[temp18], %[temp18], %[temp11] \n\t"
405 "sra %[temp11], %[temp18], 8 \n\t"
406 "sra %[temp1], %[temp18], 31 \n\t"
407 "beqz %[temp11], 2f \n\t"
408 "xor %[temp18], %[temp18], %[temp18] \n\t"
409 "movz %[temp18], %[temp6], %[temp1] \n\t"
410 "2: \n\t"
411 "lbu %[temp1], 2+0*" XSTR(BPS) "(%[dst]) \n\t"
412 "sb %[temp18], 1+0*" XSTR(BPS) "(%[dst]) \n\t"
413 "addu %[temp1], %[temp1], %[temp8] \n\t"
414 "sra %[temp8], %[temp1], 8 \n\t"
415 "sra %[temp18], %[temp1], 31 \n\t"
416 "beqz %[temp8], 3f \n\t"
417 "xor %[temp1], %[temp1], %[temp1] \n\t"
418 "movz %[temp1], %[temp6], %[temp18] \n\t"
419 "3: \n\t"
420 "lbu %[temp18], 3+0*" XSTR(BPS) "(%[dst]) \n\t"
421 "sb %[temp1], 2+0*" XSTR(BPS) "(%[dst]) \n\t"
422 "addu %[temp18], %[temp18], %[temp16] \n\t"
423 "sra %[temp16], %[temp18], 8 \n\t"
424 "sra %[temp1], %[temp18], 31 \n\t"
425 "beqz %[temp16], 4f \n\t"
426 "xor %[temp18], %[temp18], %[temp18] \n\t"
427 "movz %[temp18], %[temp6], %[temp1] \n\t"
428 "4: \n\t"
429 "sb %[temp18], 3+0*" XSTR(BPS) "(%[dst]) \n\t"
430 "lbu %[temp5], 0+1*" XSTR(BPS) "(%[dst]) \n\t"
431 "lbu %[temp8], 1+1*" XSTR(BPS) "(%[dst]) \n\t"
432 "lbu %[temp11], 2+1*" XSTR(BPS) "(%[dst]) \n\t"
433 "lbu %[temp16], 3+1*" XSTR(BPS) "(%[dst]) \n\t"
434 "addu %[temp5], %[temp5], %[temp17] \n\t"
435 "addu %[temp8], %[temp8], %[temp15] \n\t"
436 "addu %[temp11], %[temp11], %[temp12] \n\t"
437 "addu %[temp16], %[temp16], %[temp10] \n\t"
438 "sra %[temp18], %[temp5], 8 \n\t"
439 "sra %[temp1], %[temp5], 31 \n\t"
440 "beqz %[temp18], 5f \n\t"
441 "xor %[temp5], %[temp5], %[temp5] \n\t"
442 "movz %[temp5], %[temp6], %[temp1] \n\t"
443 "5: \n\t"
444 "sra %[temp18], %[temp8], 8 \n\t"
445 "sra %[temp1], %[temp8], 31 \n\t"
446 "beqz %[temp18], 6f \n\t"
447 "xor %[temp8], %[temp8], %[temp8] \n\t"
448 "movz %[temp8], %[temp6], %[temp1] \n\t"
449 "6: \n\t"
450 "sra %[temp18], %[temp11], 8 \n\t"
451 "sra %[temp1], %[temp11], 31 \n\t"
452 "sra %[temp17], %[temp16], 8 \n\t"
453 "sra %[temp15], %[temp16], 31 \n\t"
454 "beqz %[temp18], 7f \n\t"
455 "xor %[temp11], %[temp11], %[temp11] \n\t"
456 "movz %[temp11], %[temp6], %[temp1] \n\t"
457 "7: \n\t"
458 "beqz %[temp17], 8f \n\t"
459 "xor %[temp16], %[temp16], %[temp16] \n\t"
460 "movz %[temp16], %[temp6], %[temp15] \n\t"
461 "8: \n\t"
462 "sb %[temp5], 0+1*" XSTR(BPS) "(%[dst]) \n\t"
463 "sb %[temp8], 1+1*" XSTR(BPS) "(%[dst]) \n\t"
464 "sb %[temp11], 2+1*" XSTR(BPS) "(%[dst]) \n\t"
465 "sb %[temp16], 3+1*" XSTR(BPS) "(%[dst]) \n\t"
466 "lbu %[temp5], 0+2*" XSTR(BPS) "(%[dst]) \n\t"
467 "lbu %[temp8], 1+2*" XSTR(BPS) "(%[dst]) \n\t"
468 "lbu %[temp11], 2+2*" XSTR(BPS) "(%[dst]) \n\t"
469 "lbu %[temp16], 3+2*" XSTR(BPS) "(%[dst]) \n\t"
470 "addu %[temp5], %[temp5], %[temp9] \n\t"
471 "addu %[temp8], %[temp8], %[temp3] \n\t"
472 "addu %[temp11], %[temp11], %[temp0] \n\t"
473 "addu %[temp16], %[temp16], %[temp14] \n\t"
474 "sra %[temp18], %[temp5], 8 \n\t"
475 "sra %[temp1], %[temp5], 31 \n\t"
476 "sra %[temp17], %[temp8], 8 \n\t"
477 "sra %[temp15], %[temp8], 31 \n\t"
478 "sra %[temp12], %[temp11], 8 \n\t"
479 "sra %[temp10], %[temp11], 31 \n\t"
480 "sra %[temp9], %[temp16], 8 \n\t"
481 "sra %[temp3], %[temp16], 31 \n\t"
482 "beqz %[temp18], 9f \n\t"
483 "xor %[temp5], %[temp5], %[temp5] \n\t"
484 "movz %[temp5], %[temp6], %[temp1] \n\t"
485 "9: \n\t"
486 "beqz %[temp17], 10f \n\t"
487 "xor %[temp8], %[temp8], %[temp8] \n\t"
488 "movz %[temp8], %[temp6], %[temp15] \n\t"
489 "10: \n\t"
490 "beqz %[temp12], 11f \n\t"
491 "xor %[temp11], %[temp11], %[temp11] \n\t"
492 "movz %[temp11], %[temp6], %[temp10] \n\t"
493 "11: \n\t"
494 "beqz %[temp9], 12f \n\t"
495 "xor %[temp16], %[temp16], %[temp16] \n\t"
496 "movz %[temp16], %[temp6], %[temp3] \n\t"
497 "12: \n\t"
498 "sb %[temp5], 0+2*" XSTR(BPS) "(%[dst]) \n\t"
499 "sb %[temp8], 1+2*" XSTR(BPS) "(%[dst]) \n\t"
500 "sb %[temp11], 2+2*" XSTR(BPS) "(%[dst]) \n\t"
501 "sb %[temp16], 3+2*" XSTR(BPS) "(%[dst]) \n\t"
502 "lbu %[temp5], 0+3*" XSTR(BPS) "(%[dst]) \n\t"
503 "lbu %[temp8], 1+3*" XSTR(BPS) "(%[dst]) \n\t"
504 "lbu %[temp11], 2+3*" XSTR(BPS) "(%[dst]) \n\t"
505 "lbu %[temp16], 3+3*" XSTR(BPS) "(%[dst]) \n\t"
506 "addu %[temp5], %[temp5], %[temp13] \n\t"
507 "addu %[temp8], %[temp8], %[temp7] \n\t"
508 "addu %[temp11], %[temp11], %[temp4] \n\t"
509 "addu %[temp16], %[temp16], %[temp2] \n\t"
510 "sra %[temp18], %[temp5], 8 \n\t"
511 "sra %[temp1], %[temp5], 31 \n\t"
512 "sra %[temp17], %[temp8], 8 \n\t"
513 "sra %[temp15], %[temp8], 31 \n\t"
514 "sra %[temp12], %[temp11], 8 \n\t"
515 "sra %[temp10], %[temp11], 31 \n\t"
516 "sra %[temp9], %[temp16], 8 \n\t"
517 "sra %[temp3], %[temp16], 31 \n\t"
518 "beqz %[temp18], 13f \n\t"
519 "xor %[temp5], %[temp5], %[temp5] \n\t"
520 "movz %[temp5], %[temp6], %[temp1] \n\t"
521 "13: \n\t"
522 "beqz %[temp17], 14f \n\t"
523 "xor %[temp8], %[temp8], %[temp8] \n\t"
524 "movz %[temp8], %[temp6], %[temp15] \n\t"
525 "14: \n\t"
526 "beqz %[temp12], 15f \n\t"
527 "xor %[temp11], %[temp11], %[temp11] \n\t"
528 "movz %[temp11], %[temp6], %[temp10] \n\t"
529 "15: \n\t"
530 "beqz %[temp9], 16f \n\t"
531 "xor %[temp16], %[temp16], %[temp16] \n\t"
532 "movz %[temp16], %[temp6], %[temp3] \n\t"
533 "16: \n\t"
534 "sb %[temp5], 0+3*" XSTR(BPS) "(%[dst]) \n\t"
535 "sb %[temp8], 1+3*" XSTR(BPS) "(%[dst]) \n\t"
536 "sb %[temp11], 2+3*" XSTR(BPS) "(%[dst]) \n\t"
537 "sb %[temp16], 3+3*" XSTR(BPS) "(%[dst]) \n\t"
538
539 : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
540 [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5),
541 [temp6]"=&r"(temp6), [temp7]"=&r"(temp7), [temp8]"=&r"(temp8),
542 [temp9]"=&r"(temp9), [temp10]"=&r"(temp10), [temp11]"=&r"(temp11),
543 [temp12]"=&r"(temp12), [temp13]"=&r"(temp13), [temp14]"=&r"(temp14),
544 [temp15]"=&r"(temp15), [temp16]"=&r"(temp16), [temp17]"=&r"(temp17),
545 [temp18]"=&r"(temp18)
546 : [in]"r"(p_in), [kC1]"r"(kC1), [kC2]"r"(kC2), [dst]"r"(dst)
547 : "memory", "hi", "lo"
548 );
549}
550
551static void TransformTwo(const int16_t* in, uint8_t* dst, int do_two) {
552 TransformOne(in, dst);
553 if (do_two) {
554 TransformOne(in + 16, dst + 4);
555 }
556}
557
558//------------------------------------------------------------------------------
559// Entry point
560
561extern void VP8DspInitMIPS32(void);
562
563WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitMIPS32(void) {
564 VP8InitClipTables();
565
566 VP8Transform = TransformTwo;
567
568 VP8VFilter16 = VFilter16;
569 VP8HFilter16 = HFilter16;
570 VP8VFilter8 = VFilter8;
571 VP8HFilter8 = HFilter8;
572 VP8VFilter16i = VFilter16i;
573 VP8HFilter16i = HFilter16i;
574 VP8VFilter8i = VFilter8i;
575 VP8HFilter8i = HFilter8i;
576
577 VP8SimpleVFilter16 = SimpleVFilter16;
578 VP8SimpleHFilter16 = SimpleHFilter16;
579 VP8SimpleVFilter16i = SimpleVFilter16i;
580 VP8SimpleHFilter16i = SimpleHFilter16i;
581}
582
583#else // !WEBP_USE_MIPS32
584
585WEBP_DSP_INIT_STUB(VP8DspInitMIPS32)
586
587#endif // WEBP_USE_MIPS32
588