Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 1 | // Copyright 2010 Google Inc. All Rights Reserved. |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 2 | // |
Vikas Arora | 0406ce1 | 2013-08-09 15:57:12 -0700 | [diff] [blame] | 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. |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 8 | // ----------------------------------------------------------------------------- |
| 9 | // |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 10 | // Speed-critical decoding functions. |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 11 | // |
| 12 | // Author: Skal (pascal.massimino@gmail.com) |
| 13 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 14 | #include "./dsp.h" |
| 15 | #include "../dec/vp8i.h" |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 16 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 17 | //------------------------------------------------------------------------------ |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 18 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 19 | static WEBP_INLINE uint8_t clip_8b(int v) { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 20 | return (!(v & ~0xff)) ? v : (v < 0) ? 0 : 255; |
| 21 | } |
| 22 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 23 | //------------------------------------------------------------------------------ |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 24 | // Transforms (Paragraph 14.4) |
| 25 | |
| 26 | #define STORE(x, y, v) \ |
| 27 | dst[x + y * BPS] = clip_8b(dst[x + y * BPS] + ((v) >> 3)) |
| 28 | |
Vikas Arora | 8b72022 | 2014-01-02 16:48:02 -0800 | [diff] [blame] | 29 | #define STORE2(y, dc, d, c) do { \ |
| 30 | const int DC = (dc); \ |
| 31 | STORE(0, y, DC + (d)); \ |
| 32 | STORE(1, y, DC + (c)); \ |
| 33 | STORE(2, y, DC - (c)); \ |
| 34 | STORE(3, y, DC - (d)); \ |
| 35 | } while (0) |
| 36 | |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 37 | static const int kC1 = 20091 + (1 << 16); |
| 38 | static const int kC2 = 35468; |
| 39 | #define MUL(a, b) (((a) * (b)) >> 16) |
| 40 | |
Vikas Arora | 4667279 | 2011-07-13 16:37:55 +0530 | [diff] [blame] | 41 | static void TransformOne(const int16_t* in, uint8_t* dst) { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 42 | int C[4 * 4], *tmp; |
| 43 | int i; |
| 44 | tmp = C; |
| 45 | for (i = 0; i < 4; ++i) { // vertical pass |
| 46 | const int a = in[0] + in[8]; // [-4096, 4094] |
| 47 | const int b = in[0] - in[8]; // [-4095, 4095] |
| 48 | const int c = MUL(in[4], kC2) - MUL(in[12], kC1); // [-3783, 3783] |
| 49 | const int d = MUL(in[4], kC1) + MUL(in[12], kC2); // [-3785, 3781] |
| 50 | tmp[0] = a + d; // [-7881, 7875] |
| 51 | tmp[1] = b + c; // [-7878, 7878] |
| 52 | tmp[2] = b - c; // [-7878, 7878] |
| 53 | tmp[3] = a - d; // [-7877, 7879] |
| 54 | tmp += 4; |
| 55 | in++; |
| 56 | } |
| 57 | // Each pass is expanding the dynamic range by ~3.85 (upper bound). |
| 58 | // The exact value is (2. + (kC1 + kC2) / 65536). |
| 59 | // After the second pass, maximum interval is [-3794, 3794], assuming |
| 60 | // an input in [-2048, 2047] interval. We then need to add a dst value |
| 61 | // in the [0, 255] range. |
| 62 | // In the worst case scenario, the input to clip_8b() can be as large as |
| 63 | // [-60713, 60968]. |
| 64 | tmp = C; |
| 65 | for (i = 0; i < 4; ++i) { // horizontal pass |
| 66 | const int dc = tmp[0] + 4; |
| 67 | const int a = dc + tmp[8]; |
| 68 | const int b = dc - tmp[8]; |
| 69 | const int c = MUL(tmp[4], kC2) - MUL(tmp[12], kC1); |
| 70 | const int d = MUL(tmp[4], kC1) + MUL(tmp[12], kC2); |
| 71 | STORE(0, 0, a + d); |
| 72 | STORE(1, 0, b + c); |
| 73 | STORE(2, 0, b - c); |
| 74 | STORE(3, 0, a - d); |
| 75 | tmp++; |
| 76 | dst += BPS; |
| 77 | } |
| 78 | } |
Vikas Arora | 8b72022 | 2014-01-02 16:48:02 -0800 | [diff] [blame] | 79 | |
| 80 | // Simplified transform when only in[0], in[1] and in[4] are non-zero |
| 81 | static void TransformAC3(const int16_t* in, uint8_t* dst) { |
| 82 | const int a = in[0] + 4; |
| 83 | const int c4 = MUL(in[4], kC2); |
| 84 | const int d4 = MUL(in[4], kC1); |
| 85 | const int c1 = MUL(in[1], kC2); |
| 86 | const int d1 = MUL(in[1], kC1); |
| 87 | STORE2(0, a + d4, d1, c1); |
| 88 | STORE2(1, a + c4, d1, c1); |
| 89 | STORE2(2, a - c4, d1, c1); |
| 90 | STORE2(3, a - d4, d1, c1); |
| 91 | } |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 92 | #undef MUL |
Vikas Arora | 8b72022 | 2014-01-02 16:48:02 -0800 | [diff] [blame] | 93 | #undef STORE2 |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 94 | |
Vikas Arora | 4667279 | 2011-07-13 16:37:55 +0530 | [diff] [blame] | 95 | static void TransformTwo(const int16_t* in, uint8_t* dst, int do_two) { |
| 96 | TransformOne(in, dst); |
| 97 | if (do_two) { |
| 98 | TransformOne(in + 16, dst + 4); |
| 99 | } |
| 100 | } |
| 101 | |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 102 | static void TransformUV(const int16_t* in, uint8_t* dst) { |
Vikas Arora | 4667279 | 2011-07-13 16:37:55 +0530 | [diff] [blame] | 103 | VP8Transform(in + 0 * 16, dst, 1); |
| 104 | VP8Transform(in + 2 * 16, dst + 4 * BPS, 1); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | static void TransformDC(const int16_t *in, uint8_t* dst) { |
| 108 | const int DC = in[0] + 4; |
| 109 | int i, j; |
| 110 | for (j = 0; j < 4; ++j) { |
| 111 | for (i = 0; i < 4; ++i) { |
| 112 | STORE(i, j, DC); |
| 113 | } |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | static void TransformDCUV(const int16_t* in, uint8_t* dst) { |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 118 | if (in[0 * 16]) VP8TransformDC(in + 0 * 16, dst); |
| 119 | if (in[1 * 16]) VP8TransformDC(in + 1 * 16, dst + 4); |
| 120 | if (in[2 * 16]) VP8TransformDC(in + 2 * 16, dst + 4 * BPS); |
| 121 | if (in[3 * 16]) VP8TransformDC(in + 3 * 16, dst + 4 * BPS + 4); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | #undef STORE |
| 125 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 126 | //------------------------------------------------------------------------------ |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 127 | // Paragraph 14.3 |
| 128 | |
| 129 | static void TransformWHT(const int16_t* in, int16_t* out) { |
| 130 | int tmp[16]; |
| 131 | int i; |
| 132 | for (i = 0; i < 4; ++i) { |
| 133 | const int a0 = in[0 + i] + in[12 + i]; |
| 134 | const int a1 = in[4 + i] + in[ 8 + i]; |
| 135 | const int a2 = in[4 + i] - in[ 8 + i]; |
| 136 | const int a3 = in[0 + i] - in[12 + i]; |
| 137 | tmp[0 + i] = a0 + a1; |
| 138 | tmp[8 + i] = a0 - a1; |
| 139 | tmp[4 + i] = a3 + a2; |
| 140 | tmp[12 + i] = a3 - a2; |
| 141 | } |
| 142 | for (i = 0; i < 4; ++i) { |
| 143 | const int dc = tmp[0 + i * 4] + 3; // w/ rounder |
| 144 | const int a0 = dc + tmp[3 + i * 4]; |
| 145 | const int a1 = tmp[1 + i * 4] + tmp[2 + i * 4]; |
| 146 | const int a2 = tmp[1 + i * 4] - tmp[2 + i * 4]; |
| 147 | const int a3 = dc - tmp[3 + i * 4]; |
| 148 | out[ 0] = (a0 + a1) >> 3; |
| 149 | out[16] = (a3 + a2) >> 3; |
| 150 | out[32] = (a0 - a1) >> 3; |
| 151 | out[48] = (a3 - a2) >> 3; |
| 152 | out += 64; |
| 153 | } |
| 154 | } |
| 155 | |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 156 | void (*VP8TransformWHT)(const int16_t* in, int16_t* out); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 157 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 158 | //------------------------------------------------------------------------------ |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 159 | // Intra predictions |
| 160 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 161 | #define DST(x, y) dst[(x) + (y) * BPS] |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 162 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 163 | static WEBP_INLINE void TrueMotion(uint8_t *dst, int size) { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 164 | const uint8_t* top = dst - BPS; |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 165 | const uint8_t* const clip0 = VP8kclip1 - top[-1]; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 166 | int y; |
| 167 | for (y = 0; y < size; ++y) { |
| 168 | const uint8_t* const clip = clip0 + dst[-1]; |
| 169 | int x; |
| 170 | for (x = 0; x < size; ++x) { |
| 171 | dst[x] = clip[top[x]]; |
| 172 | } |
| 173 | dst += BPS; |
| 174 | } |
| 175 | } |
| 176 | static void TM4(uint8_t *dst) { TrueMotion(dst, 4); } |
| 177 | static void TM8uv(uint8_t *dst) { TrueMotion(dst, 8); } |
| 178 | static void TM16(uint8_t *dst) { TrueMotion(dst, 16); } |
| 179 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 180 | //------------------------------------------------------------------------------ |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 181 | // 16x16 |
| 182 | |
| 183 | static void VE16(uint8_t *dst) { // vertical |
| 184 | int j; |
| 185 | for (j = 0; j < 16; ++j) { |
| 186 | memcpy(dst + j * BPS, dst - BPS, 16); |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | static void HE16(uint8_t *dst) { // horizontal |
| 191 | int j; |
| 192 | for (j = 16; j > 0; --j) { |
| 193 | memset(dst, dst[-1], 16); |
| 194 | dst += BPS; |
| 195 | } |
| 196 | } |
| 197 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 198 | static WEBP_INLINE void Put16(int v, uint8_t* dst) { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 199 | int j; |
| 200 | for (j = 0; j < 16; ++j) { |
| 201 | memset(dst + j * BPS, v, 16); |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | static void DC16(uint8_t *dst) { // DC |
| 206 | int DC = 16; |
| 207 | int j; |
| 208 | for (j = 0; j < 16; ++j) { |
| 209 | DC += dst[-1 + j * BPS] + dst[j - BPS]; |
| 210 | } |
| 211 | Put16(DC >> 5, dst); |
| 212 | } |
| 213 | |
| 214 | static void DC16NoTop(uint8_t *dst) { // DC with top samples not available |
| 215 | int DC = 8; |
| 216 | int j; |
| 217 | for (j = 0; j < 16; ++j) { |
| 218 | DC += dst[-1 + j * BPS]; |
| 219 | } |
| 220 | Put16(DC >> 4, dst); |
| 221 | } |
| 222 | |
| 223 | static void DC16NoLeft(uint8_t *dst) { // DC with left samples not available |
| 224 | int DC = 8; |
| 225 | int i; |
| 226 | for (i = 0; i < 16; ++i) { |
| 227 | DC += dst[i - BPS]; |
| 228 | } |
| 229 | Put16(DC >> 4, dst); |
| 230 | } |
| 231 | |
| 232 | static void DC16NoTopLeft(uint8_t *dst) { // DC with no top and left samples |
| 233 | Put16(0x80, dst); |
| 234 | } |
| 235 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 236 | //------------------------------------------------------------------------------ |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 237 | // 4x4 |
| 238 | |
| 239 | #define AVG3(a, b, c) (((a) + 2 * (b) + (c) + 2) >> 2) |
| 240 | #define AVG2(a, b) (((a) + (b) + 1) >> 1) |
| 241 | |
| 242 | static void VE4(uint8_t *dst) { // vertical |
| 243 | const uint8_t* top = dst - BPS; |
| 244 | const uint8_t vals[4] = { |
| 245 | AVG3(top[-1], top[0], top[1]), |
| 246 | AVG3(top[ 0], top[1], top[2]), |
| 247 | AVG3(top[ 1], top[2], top[3]), |
| 248 | AVG3(top[ 2], top[3], top[4]) |
| 249 | }; |
| 250 | int i; |
| 251 | for (i = 0; i < 4; ++i) { |
| 252 | memcpy(dst + i * BPS, vals, sizeof(vals)); |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | static void HE4(uint8_t *dst) { // horizontal |
| 257 | const int A = dst[-1 - BPS]; |
| 258 | const int B = dst[-1]; |
| 259 | const int C = dst[-1 + BPS]; |
| 260 | const int D = dst[-1 + 2 * BPS]; |
| 261 | const int E = dst[-1 + 3 * BPS]; |
| 262 | *(uint32_t*)(dst + 0 * BPS) = 0x01010101U * AVG3(A, B, C); |
| 263 | *(uint32_t*)(dst + 1 * BPS) = 0x01010101U * AVG3(B, C, D); |
| 264 | *(uint32_t*)(dst + 2 * BPS) = 0x01010101U * AVG3(C, D, E); |
| 265 | *(uint32_t*)(dst + 3 * BPS) = 0x01010101U * AVG3(D, E, E); |
| 266 | } |
| 267 | |
| 268 | static void DC4(uint8_t *dst) { // DC |
| 269 | uint32_t dc = 4; |
| 270 | int i; |
| 271 | for (i = 0; i < 4; ++i) dc += dst[i - BPS] + dst[-1 + i * BPS]; |
| 272 | dc >>= 3; |
| 273 | for (i = 0; i < 4; ++i) memset(dst + i * BPS, dc, 4); |
| 274 | } |
| 275 | |
| 276 | static void RD4(uint8_t *dst) { // Down-right |
| 277 | const int I = dst[-1 + 0 * BPS]; |
| 278 | const int J = dst[-1 + 1 * BPS]; |
| 279 | const int K = dst[-1 + 2 * BPS]; |
| 280 | const int L = dst[-1 + 3 * BPS]; |
| 281 | const int X = dst[-1 - BPS]; |
| 282 | const int A = dst[0 - BPS]; |
| 283 | const int B = dst[1 - BPS]; |
| 284 | const int C = dst[2 - BPS]; |
| 285 | const int D = dst[3 - BPS]; |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 286 | DST(0, 3) = AVG3(J, K, L); |
| 287 | DST(0, 2) = DST(1, 3) = AVG3(I, J, K); |
| 288 | DST(0, 1) = DST(1, 2) = DST(2, 3) = AVG3(X, I, J); |
| 289 | DST(0, 0) = DST(1, 1) = DST(2, 2) = DST(3, 3) = AVG3(A, X, I); |
| 290 | DST(1, 0) = DST(2, 1) = DST(3, 2) = AVG3(B, A, X); |
| 291 | DST(2, 0) = DST(3, 1) = AVG3(C, B, A); |
| 292 | DST(3, 0) = AVG3(D, C, B); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 293 | } |
| 294 | |
| 295 | static void LD4(uint8_t *dst) { // Down-Left |
| 296 | const int A = dst[0 - BPS]; |
| 297 | const int B = dst[1 - BPS]; |
| 298 | const int C = dst[2 - BPS]; |
| 299 | const int D = dst[3 - BPS]; |
| 300 | const int E = dst[4 - BPS]; |
| 301 | const int F = dst[5 - BPS]; |
| 302 | const int G = dst[6 - BPS]; |
| 303 | const int H = dst[7 - BPS]; |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 304 | DST(0, 0) = AVG3(A, B, C); |
| 305 | DST(1, 0) = DST(0, 1) = AVG3(B, C, D); |
| 306 | DST(2, 0) = DST(1, 1) = DST(0, 2) = AVG3(C, D, E); |
| 307 | DST(3, 0) = DST(2, 1) = DST(1, 2) = DST(0, 3) = AVG3(D, E, F); |
| 308 | DST(3, 1) = DST(2, 2) = DST(1, 3) = AVG3(E, F, G); |
| 309 | DST(3, 2) = DST(2, 3) = AVG3(F, G, H); |
| 310 | DST(3, 3) = AVG3(G, H, H); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 311 | } |
| 312 | |
| 313 | static void VR4(uint8_t *dst) { // Vertical-Right |
| 314 | const int I = dst[-1 + 0 * BPS]; |
| 315 | const int J = dst[-1 + 1 * BPS]; |
| 316 | const int K = dst[-1 + 2 * BPS]; |
| 317 | const int X = dst[-1 - BPS]; |
| 318 | const int A = dst[0 - BPS]; |
| 319 | const int B = dst[1 - BPS]; |
| 320 | const int C = dst[2 - BPS]; |
| 321 | const int D = dst[3 - BPS]; |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 322 | DST(0, 0) = DST(1, 2) = AVG2(X, A); |
| 323 | DST(1, 0) = DST(2, 2) = AVG2(A, B); |
| 324 | DST(2, 0) = DST(3, 2) = AVG2(B, C); |
| 325 | DST(3, 0) = AVG2(C, D); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 326 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 327 | DST(0, 3) = AVG3(K, J, I); |
| 328 | DST(0, 2) = AVG3(J, I, X); |
| 329 | DST(0, 1) = DST(1, 3) = AVG3(I, X, A); |
| 330 | DST(1, 1) = DST(2, 3) = AVG3(X, A, B); |
| 331 | DST(2, 1) = DST(3, 3) = AVG3(A, B, C); |
| 332 | DST(3, 1) = AVG3(B, C, D); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 333 | } |
| 334 | |
| 335 | static void VL4(uint8_t *dst) { // Vertical-Left |
| 336 | const int A = dst[0 - BPS]; |
| 337 | const int B = dst[1 - BPS]; |
| 338 | const int C = dst[2 - BPS]; |
| 339 | const int D = dst[3 - BPS]; |
| 340 | const int E = dst[4 - BPS]; |
| 341 | const int F = dst[5 - BPS]; |
| 342 | const int G = dst[6 - BPS]; |
| 343 | const int H = dst[7 - BPS]; |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 344 | DST(0, 0) = AVG2(A, B); |
| 345 | DST(1, 0) = DST(0, 2) = AVG2(B, C); |
| 346 | DST(2, 0) = DST(1, 2) = AVG2(C, D); |
| 347 | DST(3, 0) = DST(2, 2) = AVG2(D, E); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 348 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 349 | DST(0, 1) = AVG3(A, B, C); |
| 350 | DST(1, 1) = DST(0, 3) = AVG3(B, C, D); |
| 351 | DST(2, 1) = DST(1, 3) = AVG3(C, D, E); |
| 352 | DST(3, 1) = DST(2, 3) = AVG3(D, E, F); |
| 353 | DST(3, 2) = AVG3(E, F, G); |
| 354 | DST(3, 3) = AVG3(F, G, H); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 355 | } |
| 356 | |
| 357 | static void HU4(uint8_t *dst) { // Horizontal-Up |
| 358 | const int I = dst[-1 + 0 * BPS]; |
| 359 | const int J = dst[-1 + 1 * BPS]; |
| 360 | const int K = dst[-1 + 2 * BPS]; |
| 361 | const int L = dst[-1 + 3 * BPS]; |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 362 | DST(0, 0) = AVG2(I, J); |
| 363 | DST(2, 0) = DST(0, 1) = AVG2(J, K); |
| 364 | DST(2, 1) = DST(0, 2) = AVG2(K, L); |
| 365 | DST(1, 0) = AVG3(I, J, K); |
| 366 | DST(3, 0) = DST(1, 1) = AVG3(J, K, L); |
| 367 | DST(3, 1) = DST(1, 2) = AVG3(K, L, L); |
| 368 | DST(3, 2) = DST(2, 2) = |
| 369 | DST(0, 3) = DST(1, 3) = DST(2, 3) = DST(3, 3) = L; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 370 | } |
| 371 | |
| 372 | static void HD4(uint8_t *dst) { // Horizontal-Down |
| 373 | const int I = dst[-1 + 0 * BPS]; |
| 374 | const int J = dst[-1 + 1 * BPS]; |
| 375 | const int K = dst[-1 + 2 * BPS]; |
| 376 | const int L = dst[-1 + 3 * BPS]; |
| 377 | const int X = dst[-1 - BPS]; |
| 378 | const int A = dst[0 - BPS]; |
| 379 | const int B = dst[1 - BPS]; |
| 380 | const int C = dst[2 - BPS]; |
| 381 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 382 | DST(0, 0) = DST(2, 1) = AVG2(I, X); |
| 383 | DST(0, 1) = DST(2, 2) = AVG2(J, I); |
| 384 | DST(0, 2) = DST(2, 3) = AVG2(K, J); |
| 385 | DST(0, 3) = AVG2(L, K); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 386 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 387 | DST(3, 0) = AVG3(A, B, C); |
| 388 | DST(2, 0) = AVG3(X, A, B); |
| 389 | DST(1, 0) = DST(3, 1) = AVG3(I, X, A); |
| 390 | DST(1, 1) = DST(3, 2) = AVG3(J, I, X); |
| 391 | DST(1, 2) = DST(3, 3) = AVG3(K, J, I); |
| 392 | DST(1, 3) = AVG3(L, K, J); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 393 | } |
| 394 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 395 | #undef DST |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 396 | #undef AVG3 |
| 397 | #undef AVG2 |
| 398 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 399 | //------------------------------------------------------------------------------ |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 400 | // Chroma |
| 401 | |
| 402 | static void VE8uv(uint8_t *dst) { // vertical |
| 403 | int j; |
| 404 | for (j = 0; j < 8; ++j) { |
| 405 | memcpy(dst + j * BPS, dst - BPS, 8); |
| 406 | } |
| 407 | } |
| 408 | |
| 409 | static void HE8uv(uint8_t *dst) { // horizontal |
| 410 | int j; |
| 411 | for (j = 0; j < 8; ++j) { |
| 412 | memset(dst, dst[-1], 8); |
| 413 | dst += BPS; |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | // helper for chroma-DC predictions |
Vikas Arora | 1e7bf88 | 2013-03-13 16:43:18 -0700 | [diff] [blame] | 418 | static WEBP_INLINE void Put8x8uv(uint8_t value, uint8_t* dst) { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 419 | int j; |
| 420 | for (j = 0; j < 8; ++j) { |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 421 | memset(dst + j * BPS, value, 8); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 422 | } |
| 423 | } |
| 424 | |
| 425 | static void DC8uv(uint8_t *dst) { // DC |
| 426 | int dc0 = 8; |
| 427 | int i; |
| 428 | for (i = 0; i < 8; ++i) { |
| 429 | dc0 += dst[i - BPS] + dst[-1 + i * BPS]; |
| 430 | } |
Vikas Arora | 1e7bf88 | 2013-03-13 16:43:18 -0700 | [diff] [blame] | 431 | Put8x8uv(dc0 >> 4, dst); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 432 | } |
| 433 | |
| 434 | static void DC8uvNoLeft(uint8_t *dst) { // DC with no left samples |
| 435 | int dc0 = 4; |
| 436 | int i; |
| 437 | for (i = 0; i < 8; ++i) { |
| 438 | dc0 += dst[i - BPS]; |
| 439 | } |
Vikas Arora | 1e7bf88 | 2013-03-13 16:43:18 -0700 | [diff] [blame] | 440 | Put8x8uv(dc0 >> 3, dst); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 441 | } |
| 442 | |
| 443 | static void DC8uvNoTop(uint8_t *dst) { // DC with no top samples |
| 444 | int dc0 = 4; |
| 445 | int i; |
| 446 | for (i = 0; i < 8; ++i) { |
| 447 | dc0 += dst[-1 + i * BPS]; |
| 448 | } |
Vikas Arora | 1e7bf88 | 2013-03-13 16:43:18 -0700 | [diff] [blame] | 449 | Put8x8uv(dc0 >> 3, dst); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 450 | } |
| 451 | |
| 452 | static void DC8uvNoTopLeft(uint8_t *dst) { // DC with nothing |
Vikas Arora | 1e7bf88 | 2013-03-13 16:43:18 -0700 | [diff] [blame] | 453 | Put8x8uv(0x80, dst); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 454 | } |
| 455 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 456 | //------------------------------------------------------------------------------ |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 457 | // default C implementations |
| 458 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 459 | const VP8PredFunc VP8PredLuma4[NUM_BMODES] = { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 460 | DC4, TM4, VE4, HE4, RD4, VR4, LD4, VL4, HD4, HU4 |
| 461 | }; |
| 462 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 463 | const VP8PredFunc VP8PredLuma16[NUM_B_DC_MODES] = { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 464 | DC16, TM16, VE16, HE16, |
| 465 | DC16NoTop, DC16NoLeft, DC16NoTopLeft |
| 466 | }; |
| 467 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 468 | const VP8PredFunc VP8PredChroma8[NUM_B_DC_MODES] = { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 469 | DC8uv, TM8uv, VE8uv, HE8uv, |
| 470 | DC8uvNoTop, DC8uvNoLeft, DC8uvNoTopLeft |
| 471 | }; |
| 472 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 473 | //------------------------------------------------------------------------------ |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 474 | // Edge filtering functions |
| 475 | |
| 476 | // 4 pixels in, 2 pixels out |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 477 | static WEBP_INLINE void do_filter2(uint8_t* p, int step) { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 478 | const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step]; |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 479 | const int a = 3 * (q0 - p0) + VP8ksclip1[p1 - q1]; // in [-893,892] |
| 480 | const int a1 = VP8ksclip2[(a + 4) >> 3]; // in [-16,15] |
| 481 | const int a2 = VP8ksclip2[(a + 3) >> 3]; |
| 482 | p[-step] = VP8kclip1[p0 + a2]; |
| 483 | p[ 0] = VP8kclip1[q0 - a1]; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 484 | } |
| 485 | |
| 486 | // 4 pixels in, 4 pixels out |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 487 | static WEBP_INLINE void do_filter4(uint8_t* p, int step) { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 488 | const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step]; |
| 489 | const int a = 3 * (q0 - p0); |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 490 | const int a1 = VP8ksclip2[(a + 4) >> 3]; |
| 491 | const int a2 = VP8ksclip2[(a + 3) >> 3]; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 492 | const int a3 = (a1 + 1) >> 1; |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 493 | p[-2*step] = VP8kclip1[p1 + a3]; |
| 494 | p[- step] = VP8kclip1[p0 + a2]; |
| 495 | p[ 0] = VP8kclip1[q0 - a1]; |
| 496 | p[ step] = VP8kclip1[q1 - a3]; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 497 | } |
| 498 | |
| 499 | // 6 pixels in, 6 pixels out |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 500 | static WEBP_INLINE void do_filter6(uint8_t* p, int step) { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 501 | const int p2 = p[-3*step], p1 = p[-2*step], p0 = p[-step]; |
| 502 | const int q0 = p[0], q1 = p[step], q2 = p[2*step]; |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 503 | const int a = VP8ksclip1[3 * (q0 - p0) + VP8ksclip1[p1 - q1]]; |
| 504 | // a is in [-128,127], a1 in [-27,27], a2 in [-18,18] and a3 in [-9,9] |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 505 | const int a1 = (27 * a + 63) >> 7; // eq. to ((3 * a + 7) * 9) >> 7 |
| 506 | const int a2 = (18 * a + 63) >> 7; // eq. to ((2 * a + 7) * 9) >> 7 |
| 507 | const int a3 = (9 * a + 63) >> 7; // eq. to ((1 * a + 7) * 9) >> 7 |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 508 | p[-3*step] = VP8kclip1[p2 + a3]; |
| 509 | p[-2*step] = VP8kclip1[p1 + a2]; |
| 510 | p[- step] = VP8kclip1[p0 + a1]; |
| 511 | p[ 0] = VP8kclip1[q0 - a1]; |
| 512 | p[ step] = VP8kclip1[q1 - a2]; |
| 513 | p[ 2*step] = VP8kclip1[q2 - a3]; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 514 | } |
| 515 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 516 | static WEBP_INLINE int hev(const uint8_t* p, int step, int thresh) { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 517 | const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step]; |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 518 | return (VP8kabs0[p1 - p0] > thresh) || (VP8kabs0[q1 - q0] > thresh); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 519 | } |
| 520 | |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 521 | static WEBP_INLINE int needs_filter(const uint8_t* p, int step, int t) { |
| 522 | const int p1 = p[-2 * step], p0 = p[-step], q0 = p[0], q1 = p[step]; |
| 523 | return ((4 * VP8kabs0[p0 - q0] + VP8kabs0[p1 - q1]) <= t); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 524 | } |
| 525 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 526 | static WEBP_INLINE int needs_filter2(const uint8_t* p, |
| 527 | int step, int t, int it) { |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 528 | const int p3 = p[-4 * step], p2 = p[-3 * step], p1 = p[-2 * step]; |
| 529 | const int p0 = p[-step], q0 = p[0]; |
| 530 | const int q1 = p[step], q2 = p[2 * step], q3 = p[3 * step]; |
| 531 | if ((4 * VP8kabs0[p0 - q0] + VP8kabs0[p1 - q1]) > t) return 0; |
| 532 | return VP8kabs0[p3 - p2] <= it && VP8kabs0[p2 - p1] <= it && |
| 533 | VP8kabs0[p1 - p0] <= it && VP8kabs0[q3 - q2] <= it && |
| 534 | VP8kabs0[q2 - q1] <= it && VP8kabs0[q1 - q0] <= it; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 535 | } |
| 536 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 537 | //------------------------------------------------------------------------------ |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 538 | // Simple In-loop filtering (Paragraph 15.2) |
| 539 | |
| 540 | static void SimpleVFilter16(uint8_t* p, int stride, int thresh) { |
| 541 | int i; |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 542 | const int thresh2 = 2 * thresh + 1; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 543 | for (i = 0; i < 16; ++i) { |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 544 | if (needs_filter(p + i, stride, thresh2)) { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 545 | do_filter2(p + i, stride); |
| 546 | } |
| 547 | } |
| 548 | } |
| 549 | |
| 550 | static void SimpleHFilter16(uint8_t* p, int stride, int thresh) { |
| 551 | int i; |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 552 | const int thresh2 = 2 * thresh + 1; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 553 | for (i = 0; i < 16; ++i) { |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 554 | if (needs_filter(p + i * stride, 1, thresh2)) { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 555 | do_filter2(p + i * stride, 1); |
| 556 | } |
| 557 | } |
| 558 | } |
| 559 | |
| 560 | static void SimpleVFilter16i(uint8_t* p, int stride, int thresh) { |
| 561 | int k; |
| 562 | for (k = 3; k > 0; --k) { |
| 563 | p += 4 * stride; |
| 564 | SimpleVFilter16(p, stride, thresh); |
| 565 | } |
| 566 | } |
| 567 | |
| 568 | static void SimpleHFilter16i(uint8_t* p, int stride, int thresh) { |
| 569 | int k; |
| 570 | for (k = 3; k > 0; --k) { |
| 571 | p += 4; |
| 572 | SimpleHFilter16(p, stride, thresh); |
| 573 | } |
| 574 | } |
| 575 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 576 | //------------------------------------------------------------------------------ |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 577 | // Complex In-loop filtering (Paragraph 15.3) |
| 578 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 579 | static WEBP_INLINE void FilterLoop26(uint8_t* p, |
| 580 | int hstride, int vstride, int size, |
| 581 | int thresh, int ithresh, int hev_thresh) { |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 582 | const int thresh2 = 2 * thresh + 1; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 583 | while (size-- > 0) { |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 584 | if (needs_filter2(p, hstride, thresh2, ithresh)) { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 585 | if (hev(p, hstride, hev_thresh)) { |
| 586 | do_filter2(p, hstride); |
| 587 | } else { |
| 588 | do_filter6(p, hstride); |
| 589 | } |
| 590 | } |
| 591 | p += vstride; |
| 592 | } |
| 593 | } |
| 594 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 595 | static WEBP_INLINE void FilterLoop24(uint8_t* p, |
| 596 | int hstride, int vstride, int size, |
| 597 | int thresh, int ithresh, int hev_thresh) { |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 598 | const int thresh2 = 2 * thresh + 1; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 599 | while (size-- > 0) { |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 600 | if (needs_filter2(p, hstride, thresh2, ithresh)) { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 601 | if (hev(p, hstride, hev_thresh)) { |
| 602 | do_filter2(p, hstride); |
| 603 | } else { |
| 604 | do_filter4(p, hstride); |
| 605 | } |
| 606 | } |
| 607 | p += vstride; |
| 608 | } |
| 609 | } |
| 610 | |
| 611 | // on macroblock edges |
| 612 | static void VFilter16(uint8_t* p, int stride, |
| 613 | int thresh, int ithresh, int hev_thresh) { |
| 614 | FilterLoop26(p, stride, 1, 16, thresh, ithresh, hev_thresh); |
| 615 | } |
| 616 | |
| 617 | static void HFilter16(uint8_t* p, int stride, |
| 618 | int thresh, int ithresh, int hev_thresh) { |
| 619 | FilterLoop26(p, 1, stride, 16, thresh, ithresh, hev_thresh); |
| 620 | } |
| 621 | |
| 622 | // on three inner edges |
| 623 | static void VFilter16i(uint8_t* p, int stride, |
| 624 | int thresh, int ithresh, int hev_thresh) { |
| 625 | int k; |
| 626 | for (k = 3; k > 0; --k) { |
| 627 | p += 4 * stride; |
| 628 | FilterLoop24(p, stride, 1, 16, thresh, ithresh, hev_thresh); |
| 629 | } |
| 630 | } |
| 631 | |
| 632 | static void HFilter16i(uint8_t* p, int stride, |
| 633 | int thresh, int ithresh, int hev_thresh) { |
| 634 | int k; |
| 635 | for (k = 3; k > 0; --k) { |
| 636 | p += 4; |
| 637 | FilterLoop24(p, 1, stride, 16, thresh, ithresh, hev_thresh); |
| 638 | } |
| 639 | } |
| 640 | |
| 641 | // 8-pixels wide variant, for chroma filtering |
| 642 | static void VFilter8(uint8_t* u, uint8_t* v, int stride, |
| 643 | int thresh, int ithresh, int hev_thresh) { |
| 644 | FilterLoop26(u, stride, 1, 8, thresh, ithresh, hev_thresh); |
| 645 | FilterLoop26(v, stride, 1, 8, thresh, ithresh, hev_thresh); |
| 646 | } |
| 647 | |
| 648 | static void HFilter8(uint8_t* u, uint8_t* v, int stride, |
| 649 | int thresh, int ithresh, int hev_thresh) { |
| 650 | FilterLoop26(u, 1, stride, 8, thresh, ithresh, hev_thresh); |
| 651 | FilterLoop26(v, 1, stride, 8, thresh, ithresh, hev_thresh); |
| 652 | } |
| 653 | |
| 654 | static void VFilter8i(uint8_t* u, uint8_t* v, int stride, |
| 655 | int thresh, int ithresh, int hev_thresh) { |
| 656 | FilterLoop24(u + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh); |
| 657 | FilterLoop24(v + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh); |
| 658 | } |
| 659 | |
| 660 | static void HFilter8i(uint8_t* u, uint8_t* v, int stride, |
| 661 | int thresh, int ithresh, int hev_thresh) { |
| 662 | FilterLoop24(u + 4, 1, stride, 8, thresh, ithresh, hev_thresh); |
| 663 | FilterLoop24(v + 4, 1, stride, 8, thresh, ithresh, hev_thresh); |
| 664 | } |
| 665 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 666 | //------------------------------------------------------------------------------ |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 667 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 668 | VP8DecIdct2 VP8Transform; |
Vikas Arora | 8b72022 | 2014-01-02 16:48:02 -0800 | [diff] [blame] | 669 | VP8DecIdct VP8TransformAC3; |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 670 | VP8DecIdct VP8TransformUV; |
| 671 | VP8DecIdct VP8TransformDC; |
| 672 | VP8DecIdct VP8TransformDCUV; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 673 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 674 | VP8LumaFilterFunc VP8VFilter16; |
| 675 | VP8LumaFilterFunc VP8HFilter16; |
| 676 | VP8ChromaFilterFunc VP8VFilter8; |
| 677 | VP8ChromaFilterFunc VP8HFilter8; |
| 678 | VP8LumaFilterFunc VP8VFilter16i; |
| 679 | VP8LumaFilterFunc VP8HFilter16i; |
| 680 | VP8ChromaFilterFunc VP8VFilter8i; |
| 681 | VP8ChromaFilterFunc VP8HFilter8i; |
| 682 | VP8SimpleFilterFunc VP8SimpleVFilter16; |
| 683 | VP8SimpleFilterFunc VP8SimpleHFilter16; |
| 684 | VP8SimpleFilterFunc VP8SimpleVFilter16i; |
| 685 | VP8SimpleFilterFunc VP8SimpleHFilter16i; |
Vikas Arora | 4667279 | 2011-07-13 16:37:55 +0530 | [diff] [blame] | 686 | |
| 687 | extern void VP8DspInitSSE2(void); |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 688 | extern void VP8DspInitNEON(void); |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 689 | extern void VP8DspInitMIPS32(void); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 690 | |
Vikas Arora | 03d5e34 | 2011-06-02 23:59:44 +0530 | [diff] [blame] | 691 | void VP8DspInit(void) { |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 692 | VP8InitClipTables(); |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 693 | |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 694 | VP8TransformWHT = TransformWHT; |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 695 | VP8Transform = TransformTwo; |
| 696 | VP8TransformUV = TransformUV; |
| 697 | VP8TransformDC = TransformDC; |
| 698 | VP8TransformDCUV = TransformDCUV; |
Vikas Arora | 8b72022 | 2014-01-02 16:48:02 -0800 | [diff] [blame] | 699 | VP8TransformAC3 = TransformAC3; |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 700 | |
| 701 | VP8VFilter16 = VFilter16; |
| 702 | VP8HFilter16 = HFilter16; |
| 703 | VP8VFilter8 = VFilter8; |
| 704 | VP8HFilter8 = HFilter8; |
| 705 | VP8VFilter16i = VFilter16i; |
| 706 | VP8HFilter16i = HFilter16i; |
| 707 | VP8VFilter8i = VFilter8i; |
| 708 | VP8HFilter8i = HFilter8i; |
| 709 | VP8SimpleVFilter16 = SimpleVFilter16; |
| 710 | VP8SimpleHFilter16 = SimpleHFilter16; |
| 711 | VP8SimpleVFilter16i = SimpleVFilter16i; |
| 712 | VP8SimpleHFilter16i = SimpleHFilter16i; |
| 713 | |
Vikas Arora | 4667279 | 2011-07-13 16:37:55 +0530 | [diff] [blame] | 714 | // If defined, use CPUInfo() to overwrite some pointers with faster versions. |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 715 | if (VP8GetCPUInfo != NULL) { |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 716 | #if defined(WEBP_USE_SSE2) |
| 717 | if (VP8GetCPUInfo(kSSE2)) { |
Vikas Arora | 4667279 | 2011-07-13 16:37:55 +0530 | [diff] [blame] | 718 | VP8DspInitSSE2(); |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 719 | } |
| 720 | #elif defined(WEBP_USE_NEON) |
| 721 | if (VP8GetCPUInfo(kNEON)) { |
| 722 | VP8DspInitNEON(); |
| 723 | } |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 724 | #elif defined(WEBP_USE_MIPS32) |
| 725 | if (VP8GetCPUInfo(kMIPS32)) { |
| 726 | VP8DspInitMIPS32(); |
| 727 | } |
Vikas Arora | 4667279 | 2011-07-13 16:37:55 +0530 | [diff] [blame] | 728 | #endif |
Vikas Arora | 4667279 | 2011-07-13 16:37:55 +0530 | [diff] [blame] | 729 | } |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 730 | } |
| 731 | |