projects / nihav.git / blame
| Commit | Line | Data |
|---|---|---|
| 4965a5e5 KS |
1 | use super::super::types::{PredType8x8, PredType4x4}; |
| 2 | use super::RefMBData; | |
| 3 | ||
| 4 | #[derive(Default)] | |
| 5 | pub struct IntraPred16x16 { | |
| 6 | pub top: [u8; 17], | |
| 7 | pub left: [u8; 17], | |
| 8 | } | |
| 9 | ||
| 10 | impl IntraPred16x16 { | |
| 11 | pub fn new() -> Self { Self::default() } | |
| 12 | #[allow(clippy::many_single_char_names)] | |
| 13 | pub fn apply16(&self, mode: PredType8x8, dst: &mut [u8], stride: usize) { | |
| 14 | match mode { | |
| 15 | PredType8x8::DC => { | |
| 16 | let sumt = self.top[1..].iter().fold(0u32, |acc, &x| acc + u32::from(x)); | |
| 17 | let suml = self.left[1..].iter().fold(0u32, |acc, &x| acc + u32::from(x)); | |
| 18 | let dc = ((sumt + suml + 16) >> 5) as u8; | |
| 19 | for line in dst.chunks_mut(stride).take(16) { | |
| 20 | for dst in line[..16].iter_mut() { | |
| 21 | *dst = dc; | |
| 22 | } | |
| 23 | } | |
| 24 | }, | |
| 25 | PredType8x8::Hor => { | |
| 26 | for (&left, line) in self.left[1..].iter().zip(dst.chunks_mut(stride)) { | |
| 27 | for dst in line[..16].iter_mut() { | |
| 28 | *dst = left; | |
| 29 | } | |
| 30 | } | |
| 31 | }, | |
| 32 | PredType8x8::Ver => { | |
| 33 | for line in dst.chunks_mut(stride).take(16) { | |
| 34 | line[..16].copy_from_slice(&self.top[1..]); | |
| 35 | } | |
| 36 | }, | |
| 37 | PredType8x8::Plane => { | |
| 38 | let top0 = &self.top[9..]; | |
| 39 | let top1 = &self.top[..8]; | |
| 40 | let h = top0.iter().zip(top1.iter().rev()).enumerate().fold( | |
| 41 | 0i32, |acc, (k, (&a, &b))| acc + ((k + 1) as i32) * (i32::from(a) - i32::from(b))); | |
| 42 | let left0 = &self.left[9..]; | |
| 43 | let left1 = &self.left[..8]; | |
| 44 | let v = left0.iter().zip(left1.iter().rev()).enumerate().fold( | |
| 45 | 0i32, |acc, (k, (&a, &b))| acc + ((k + 1) as i32) * (i32::from(a) - i32::from(b))); | |
| 46 | let b = (h + (h >> 2)) >> 4; | |
| 47 | let c = (v + (v >> 2)) >> 4; | |
| 48 | let mut a = 16 * (i32::from(self.left[16]) + i32::from(self.top[16])) + 16 - 7 * (b + c); | |
| 49 | ||
| 50 | for line in dst.chunks_mut(stride).take(16) { | |
| 51 | let mut oval = a; | |
| 52 | for el in line[..16].iter_mut() { | |
| 53 | *el = (oval >> 5).max(0).min(255) as u8; | |
| 54 | oval += b; | |
| 55 | } | |
| 56 | a += c; | |
| 57 | } | |
| 58 | }, | |
| 59 | PredType8x8::LeftDC => { | |
| 60 | let dc = ((self.left[1..].iter().fold(0u32, |acc, &x| acc + u32::from(x)) + 8) >> 4) as u8; | |
| 61 | for line in dst.chunks_mut(stride).take(16) { | |
| 62 | for dst in line[..16].iter_mut() { | |
| 63 | *dst = dc; | |
| 64 | } | |
| 65 | } | |
| 66 | }, | |
| 67 | PredType8x8::TopDC => { | |
| 68 | let dc = ((self.top[1..].iter().fold(0u32, |acc, &x| acc + u32::from(x)) + 8) >> 4) as u8; | |
| 69 | for line in dst.chunks_mut(stride).take(16) { | |
| 70 | for dst in line[..16].iter_mut() { | |
| 71 | *dst = dc; | |
| 72 | } | |
| 73 | } | |
| 74 | }, | |
| 75 | PredType8x8::DC128 => { | |
| 76 | for line in dst.chunks_mut(stride).take(16) { | |
| 77 | for dst in line[..16].iter_mut() { | |
| 78 | *dst = 128; | |
| 79 | } | |
| 80 | } | |
| 81 | }, | |
| 82 | } | |
| 83 | } | |
| 84 | pub fn apply8(&self, mode: PredType8x8, dst: &mut [u8], stride: usize) { | |
| 85 | match mode { | |
| 86 | PredType8x8::DC | PredType8x8::Plane => { | |
| 87 | let sumt = self.top[1..9].iter().fold(0u32, |acc, &x| acc + u32::from(x)); | |
| 88 | let suml = self.left[1..9].iter().fold(0u32, |acc, &x| acc + u32::from(x)); | |
| 89 | let dc = ((sumt + suml + 8) >> 4) as u8; | |
| 90 | for line in dst.chunks_mut(stride).take(8) { | |
| 91 | for dst in line[..8].iter_mut() { | |
| 92 | *dst = dc; | |
| 93 | } | |
| 94 | } | |
| 95 | }, | |
| 96 | PredType8x8::Hor => { | |
| 97 | for (&left, line) in self.left[1..9].iter().zip(dst.chunks_mut(stride)) { | |
| 98 | for dst in line[..8].iter_mut() { | |
| 99 | *dst = left; | |
| 100 | } | |
| 101 | } | |
| 102 | }, | |
| 103 | PredType8x8::Ver => { | |
| 104 | for line in dst.chunks_mut(stride).take(8) { | |
| 105 | line[..8].copy_from_slice(&self.top[1..9]); | |
| 106 | } | |
| 107 | }, | |
| 108 | PredType8x8::LeftDC => { | |
| 109 | let dc = ((self.left[1..9].iter().fold(0u32, |acc, &x| acc + u32::from(x)) + 4) >> 3) as u8; | |
| 110 | for line in dst.chunks_mut(stride).take(8) { | |
| 111 | for dst in line[..8].iter_mut() { | |
| 112 | *dst = dc; | |
| 113 | } | |
| 114 | } | |
| 115 | }, | |
| 116 | PredType8x8::TopDC => { | |
| 117 | let dc = ((self.top[1..9].iter().fold(0u32, |acc, &x| acc + u32::from(x)) + 4) >> 3) as u8; | |
| 118 | for line in dst.chunks_mut(stride).take(8) { | |
| 119 | for dst in line[..8].iter_mut() { | |
| 120 | *dst = dc; | |
| 121 | } | |
| 122 | } | |
| 123 | }, | |
| 124 | PredType8x8::DC128 => { | |
| 125 | for line in dst.chunks_mut(stride).take(8) { | |
| 126 | for dst in line[..8].iter_mut() { | |
| 127 | *dst = 128; | |
| 128 | } | |
| 129 | } | |
| 130 | }, | |
| 131 | } | |
| 132 | } | |
| 133 | } | |
| 134 | ||
| 135 | #[derive(Default)] | |
| 136 | pub struct Intra4Pred { | |
| 137 | pub top: [u8; 8], | |
| 138 | pub left: [u8; 8], | |
| 139 | pub tl: u8, | |
| 140 | } | |
| 141 | ||
| 142 | impl Intra4Pred { | |
| 143 | pub fn new() -> Self { Self::default() } | |
| 144 | fn load_left(&self) -> [u16; 8] { | |
| 145 | let mut ret = [0; 8]; | |
| 146 | for (dst, &src) in ret.iter_mut().zip(self.left.iter()) { | |
| 147 | *dst = u16::from(src); | |
| 148 | } | |
| 149 | ret | |
| 150 | } | |
| 151 | fn load_top(&self) -> [u16; 8] { | |
| 152 | let mut ret = [0; 8]; | |
| 153 | for (dst, &src) in ret.iter_mut().zip(self.top.iter()) { | |
| 154 | *dst = u16::from(src); | |
| 155 | } | |
| 156 | ret | |
| 157 | } | |
| 158 | fn load_left_and_top(&self) -> ([u16; 5], [u16; 5]) { | |
| 159 | let mut left = [0; 5]; | |
| 160 | let mut top = [0; 5]; | |
| 161 | left[0] = u16::from(self.tl); | |
| 162 | top[0] = u16::from(self.tl); | |
| 163 | for (dst, &src) in left[1..].iter_mut().zip(self.left.iter()) { | |
| 164 | *dst = u16::from(src); | |
| 165 | } | |
| 166 | for (dst, &src) in top[1..].iter_mut().zip(self.top.iter()) { | |
| 167 | *dst = u16::from(src); | |
| 168 | } | |
| 169 | (left, top) | |
| 170 | } | |
| d92111a8 | 171 | #[allow(clippy::collapsible_else_if)] |
| 4965a5e5 KS |
172 | #[allow(clippy::many_single_char_names)] |
| 173 | pub fn apply(&self, ptype: PredType4x4, buf: &mut [u8], stride: usize) { | |
| 174 | match ptype { | |
| 175 | PredType4x4::DC => { | |
| 176 | let dc_l = self.left[..4].iter().fold(0u32, |acc, &x| acc + u32::from(x)); | |
| 177 | let dc_t = self.top [..4].iter().fold(0u32, |acc, &x| acc + u32::from(x)); | |
| 178 | let dc = ((dc_t + dc_l + 4) >> 3) as u8; | |
| 179 | for line in buf.chunks_mut(stride).take(4) { | |
| 180 | for el in line[..4].iter_mut() { | |
| 181 | *el = dc; | |
| 182 | } | |
| 183 | } | |
| 184 | }, | |
| 185 | PredType4x4::LeftDC => { | |
| 186 | let dc_l = self.left[..4].iter().fold(0u32, |acc, &x| acc + u32::from(x)); | |
| 187 | let dc = ((dc_l + 2) >> 2) as u8; | |
| 188 | for line in buf.chunks_mut(stride).take(4) { | |
| 189 | for el in line[..4].iter_mut() { | |
| 190 | *el = dc; | |
| 191 | } | |
| 192 | } | |
| 193 | }, | |
| 194 | PredType4x4::TopDC => { | |
| 195 | let dc_t = self.top [..4].iter().fold(0u32, |acc, &x| acc + u32::from(x)); | |
| 196 | let dc = ((dc_t + 2) >> 2) as u8; | |
| 197 | for line in buf.chunks_mut(stride).take(4) { | |
| 198 | for el in line[..4].iter_mut() { | |
| 199 | *el = dc; | |
| 200 | } | |
| 201 | } | |
| 202 | }, | |
| 203 | PredType4x4::DC128 => { | |
| 204 | for line in buf.chunks_mut(stride).take(4) { | |
| 205 | for el in line[..4].iter_mut() { | |
| 206 | *el = 128; | |
| 207 | } | |
| 208 | } | |
| 209 | }, | |
| 210 | PredType4x4::Ver => { | |
| 211 | for line in buf.chunks_mut(stride).take(4) { | |
| 212 | line[..4].copy_from_slice(&self.top[..4]); | |
| 213 | } | |
| 214 | }, | |
| 215 | PredType4x4::Hor => { | |
| 216 | for (&left, line) in self.left[..4].iter().zip(buf.chunks_mut(stride)) { | |
| 217 | for dst in line[..4].iter_mut() { | |
| 218 | *dst = left; | |
| 219 | } | |
| 220 | } | |
| 221 | }, | |
| 222 | PredType4x4::DiagDownLeft => { | |
| 223 | let l = self.load_left(); | |
| 224 | let t = self.load_top(); | |
| 225 | buf[0] = ((t[0] + t[2] + 2*t[1] + 2 + l[0] + l[2] + 2*l[1] + 2) >> 3) as u8; | |
| 226 | let pix = ((t[1] + t[3] + 2*t[2] + 2 + l[1] + l[3] + 2*l[2] + 2) >> 3) as u8; | |
| 227 | buf[1] = pix; | |
| 228 | buf[stride] = pix; | |
| 229 | let pix = ((t[2] + t[4] + 2*t[3] + 2 + l[2] + l[4] + 2*l[3] + 2) >> 3) as u8; | |
| 230 | buf[2] = pix; | |
| 231 | buf[1 + stride] = pix; | |
| 232 | buf[2 * stride] = pix; | |
| 233 | let pix = ((t[3] + t[5] + 2*t[4] + 2 + l[3] + l[5] + 2*l[4] + 2) >> 3) as u8; | |
| 234 | buf[3] = pix; | |
| 235 | buf[2 + stride] = pix; | |
| 236 | buf[1 + 2 * stride] = pix; | |
| 237 | buf[ 3 * stride] = pix; | |
| 238 | let pix = ((t[4] + t[6] + 2*t[5] + 2 + l[4] + l[6] + 2*l[5] + 2) >> 3) as u8; | |
| 239 | buf[3 + stride] = pix; | |
| 240 | buf[2 + 2 * stride] = pix; | |
| 241 | buf[1 + 3 * stride] = pix; | |
| 242 | let pix = ((t[5] + t[7] + 2*t[6] + 2 + l[5] + l[7] + 2*l[6] + 2) >> 3) as u8; | |
| 243 | buf[3 + 2 * stride] = pix; | |
| 244 | buf[2 + 3 * stride] = pix; | |
| 245 | buf[3 + 3 * stride] = ((t[6] + t[7] + 1 + l[6] + l[7] + 1) >> 2) as u8; | |
| 246 | }, | |
| 247 | PredType4x4::DiagDownRight => { | |
| 248 | let (l, t) = self.load_left_and_top(); | |
| 249 | for (j, line) in buf.chunks_mut(stride).take(4).enumerate() { | |
| 250 | for i in 0..j { | |
| 251 | line[i] = ((l[j - i - 1] + 2 * l[j - i] + l[j - i + 1] + 2) >> 2) as u8; | |
| 252 | } | |
| 253 | line[j] = ((l[1] + 2 * l[0] + t[1] + 2) >> 2) as u8; | |
| 254 | for i in (j + 1)..4 { | |
| 255 | line[i] = ((t[i - j - 1] + 2 * t[i - j] + t[i - j + 1] + 2) >> 2) as u8; | |
| 256 | } | |
| 257 | } | |
| 258 | }, | |
| 259 | PredType4x4::VerRight => { | |
| 260 | let (l, t) = self.load_left_and_top(); | |
| 261 | for (j, line) in buf.chunks_mut(stride).take(4).enumerate() { | |
| 262 | for (i, pix) in line[..4].iter_mut().enumerate() { | |
| 263 | let zvr = ((2 * i) as i8) - (j as i8); | |
| 264 | *pix = if zvr >= 0 { | |
| 265 | if (zvr & 1) == 0 { | |
| 266 | (t[i - (j >> 1)] + t[i - (j >> 1) + 1] + 1) >> 1 | |
| 267 | } else { | |
| 268 | (t[i - (j >> 1) - 1] + 2 * t[i - (j >> 1)] + t[i - (j >> 1) + 1] + 2) >> 2 | |
| 269 | } | |
| 270 | } else { | |
| 271 | if zvr == -1 { | |
| 272 | (l[1] + 2 * l[0] + t[1] + 2) >> 2 | |
| 273 | } else { | |
| 274 | (l[j] + 2 * l[j - 1] + l[j - 2] + 2) >> 2 | |
| 275 | } | |
| 276 | } as u8; | |
| 277 | } | |
| 278 | } | |
| 279 | }, | |
| 280 | PredType4x4::HorDown => { | |
| 281 | let (l, t) = self.load_left_and_top(); | |
| 282 | for (j, line) in buf.chunks_mut(stride).take(4).enumerate() { | |
| 283 | for (i, pix) in line[..4].iter_mut().enumerate() { | |
| 284 | let zhd = ((2 * j) as i8) - (i as i8); | |
| 285 | *pix = if zhd >= 0 { | |
| 286 | if (zhd & 1) == 0 { | |
| 287 | (l[j - (i >> 1)] + l[j - (i >> 1) + 1] + 1) >> 1 | |
| 288 | } else { | |
| 289 | (l[j - (i >> 1) - 1] + 2 * l[j - (i >> 1)] + l[j - (i >> 1) + 1] + 2) >> 2 | |
| 290 | } | |
| 291 | } else { | |
| 292 | if zhd == -1 { | |
| 293 | (l[1] + 2 * l[0] + t[1] + 2) >> 2 | |
| 294 | } else { | |
| 295 | (t[i - 2] + 2 * t[i - 1] + t[i] + 2) >> 2 | |
| 296 | } | |
| 297 | } as u8; | |
| 298 | } | |
| 299 | } | |
| 300 | }, | |
| 301 | PredType4x4::VerLeft => { | |
| 302 | let l = self.load_left(); | |
| 303 | let t = self.load_top(); | |
| 304 | buf[0] = ((2*t[0] + 2*t[1] + l[1] + 2*l[2] + l[3] + 4) >> 3) as u8; | |
| 305 | let pix = ((t[1] + t[2] + 1) >> 1) as u8; | |
| 306 | buf[1] = pix; | |
| 307 | buf[2 * stride] = pix; | |
| 308 | let pix = ((t[2] + t[3] + 1) >> 1) as u8; | |
| 309 | buf[2] = pix; | |
| 310 | buf[1 + 2 * stride] = pix; | |
| 311 | let pix = ((t[3] + t[4] + 1) >> 1) as u8; | |
| 312 | buf[3] = pix; | |
| 313 | buf[2 + 2 * stride] = pix; | |
| 314 | buf[3 + 2 * stride] = ((t[4] + t[5] + 1) >> 1) as u8; | |
| 315 | buf[ stride] = ((t[0] + 2*t[1] + t[2] + l[2] + 2*l[3] + l[4] + 4) >> 3) as u8; | |
| 316 | let pix = ((t[1] + 2*t[2] + t[3] + 2) >> 2) as u8; | |
| 317 | buf[1 + stride] = pix; | |
| 318 | buf[ 3 * stride] = pix; | |
| 319 | let pix = ((t[2] + 2*t[3] + t[4] + 2) >> 2) as u8; | |
| 320 | buf[2 + stride] = pix; | |
| 321 | buf[1 + 3 * stride] = pix; | |
| 322 | let pix = ((t[3] + 2*t[4] + t[5] + 2) >> 2) as u8; | |
| 323 | buf[3 + stride] = pix; | |
| 324 | buf[2 + 3 * stride] = pix; | |
| 325 | buf[3 + 3 * stride] = ((t[4] + 2*t[5] + t[6] + 2) >> 2) as u8; | |
| 326 | }, | |
| 327 | PredType4x4::HorUp => { | |
| 328 | let l = self.load_left(); | |
| 329 | let t = self.load_top(); | |
| 330 | buf[0] = ((t[1] + 2*t[2] + t[3] + 2*l[0] + 2*l[1] + 4) >> 3) as u8; | |
| 331 | buf[1] = ((t[2] + 2*t[3] + t[4] + l[0] + 2*l[1] + l[2] + 4) >> 3) as u8; | |
| 332 | let pix = ((t[3] + 2*t[4] + t[5] + 2*l[1] + 2*l[2] + 4) >> 3) as u8; | |
| 333 | buf[2] = pix; | |
| 334 | buf[ stride] = pix; | |
| 335 | let pix = ((t[4] + 2*t[5] + t[6] + l[1] + 2*l[2] + l[3] + 4) >> 3) as u8; | |
| 336 | buf[3] = pix; | |
| 337 | buf[1 + stride] = pix; | |
| 338 | let pix = ((t[5] + 2*t[6] + t[7] + 2*l[2] + 2*l[3] + 4) >> 3) as u8; | |
| 339 | buf[2 + stride] = pix; | |
| 340 | buf[0 + 2 * stride] = pix; | |
| 341 | let pix = ((t[6] + 3*t[7] + l[2] + 3*l[3] + 4) >> 3) as u8; | |
| 342 | buf[3 + stride] = pix; | |
| 343 | buf[1 + 2 * stride] = pix; | |
| 344 | let pix = ((l[3] + 2*l[4] + l[5] + 2) >> 2) as u8; | |
| 345 | buf[3 + 2 * stride] = pix; | |
| 346 | buf[1 + 3 * stride] = pix; | |
| 347 | let pix = ((t[6] + t[7] + l[3] + l[4] + 2) >> 2) as u8; | |
| 348 | buf[0 + 3 * stride] = pix; | |
| 349 | buf[2 + 2 * stride] = pix; | |
| 350 | buf[2 + 3 * stride] = ((l[4] + l[5] + 1) >> 1) as u8; | |
| 351 | buf[3 + 3 * stride] = ((l[4] + 2*l[5] + l[6] + 2) >> 2) as u8; | |
| 352 | }, | |
| 353 | PredType4x4::DiagDownLeftNoDown => { | |
| 354 | let l = self.load_left(); | |
| 355 | let t = self.load_top(); | |
| 356 | buf[0] = ((t[0] + t[2] + 2*t[1] + 2 + l[0] + l[2] + 2*l[1] + 2) >> 3) as u8; | |
| 357 | let pix = ((t[1] + t[3] + 2*t[2] + 2 + l[1] + l[3] + 2*l[2] + 2) >> 3) as u8; | |
| 358 | buf[1] = pix; | |
| 359 | buf[0 + stride] = pix; | |
| 360 | let pix = ((t[2] + t[4] + 2*t[3] + 2 + l[2] + 3*l[3] + 2) >> 3) as u8; | |
| 361 | buf[2] = pix; | |
| 362 | buf[1 + stride] = pix; | |
| 363 | buf[0 + 2 * stride] = pix; | |
| 364 | let pix = ((t[3] + t[5] + 2*t[4] + 2 + l[3]*4 + 2) >> 3) as u8; | |
| 365 | buf[3] = pix; | |
| 366 | buf[2 + stride] = pix; | |
| 367 | buf[1 + 2 * stride] = pix; | |
| 368 | buf[0 + 3 * stride] = pix; | |
| 369 | let pix = ((t[4] + t[6] + 2*t[5] + 2 + l[3]*4 + 2) >> 3) as u8; | |
| 370 | buf[3 + stride] = pix; | |
| 371 | buf[2 + 2 * stride] = pix; | |
| 372 | buf[1 + 3 * stride] = pix; | |
| 373 | let pix = ((t[5] + t[7] + 2*t[6] + 2 + l[3]*4 + 2) >> 3) as u8; | |
| 374 | buf[3 + 2 * stride] = pix; | |
| 375 | buf[2 + 3 * stride] = pix; | |
| 376 | buf[3 + 3 * stride] = ((t[6] + t[7] + 1 + 2*l[3] + 1) >> 2) as u8; | |
| 377 | }, | |
| 378 | PredType4x4::HorUpNoDown => { | |
| 379 | let l = self.load_left(); | |
| 380 | let t = self.load_top(); | |
| 381 | buf[0] = ((t[1] + 2*t[2] + t[3] + 2*l[0] + 2*l[1] + 4) >> 3) as u8; | |
| 382 | buf[1] = ((t[2] + 2*t[3] + t[4] + l[0] + 2*l[1] + l[2] + 4) >> 3) as u8; | |
| 383 | let pix = ((t[3] + 2*t[4] + t[5] + 2*l[1] + 2*l[2] + 4) >> 3) as u8; | |
| 384 | buf[2] = pix; | |
| 385 | buf[ stride] = pix; | |
| 386 | let pix = ((t[4] + 2*t[5] + t[6] + l[1] + 2*l[2] + l[3] + 4) >> 3) as u8; | |
| 387 | buf[3] = pix; | |
| 388 | buf[1 + stride] = pix; | |
| 389 | let pix = ((t[5] + 2*t[6] + t[7] + 2*l[2] + 2*l[3] + 4) >> 3) as u8; | |
| 390 | buf[2 + stride] = pix; | |
| 391 | buf[ 2 * stride] = pix; | |
| 392 | let pix = ((t[6] + 3*t[7] + l[2] + 3*l[3] + 4) >> 3) as u8; | |
| 393 | buf[3 + stride] = pix; | |
| 394 | buf[1 + 2 * stride] = pix; | |
| 395 | buf[3 + 2 * stride] = l[3] as u8; | |
| 396 | buf[1 + 3 * stride] = l[3] as u8; | |
| 397 | let pix = ((t[6] + t[7] + 2*l[3] + 2) >> 2) as u8; | |
| 398 | buf[0 + 3 * stride] = pix; | |
| 399 | buf[2 + 2 * stride] = pix; | |
| 400 | buf[2 + 3 * stride] = l[3] as u8; | |
| 401 | buf[3 + 3 * stride] = l[3] as u8; | |
| 402 | }, | |
| 403 | PredType4x4::VerLeftNoDown => { | |
| 404 | let l = [u16::from(self.left[0]), u16::from(self.left[1]), u16::from(self.left[2]), u16::from(self.left[3]), u16::from(self.left[3])]; | |
| 405 | let t = self.load_top(); | |
| 406 | buf[0] = ((2*t[0] + 2*t[1] + l[1] + 2*l[2] + l[3] + 4) >> 3) as u8; | |
| 407 | let pix = ((t[1] + t[2] + 1) >> 1) as u8; | |
| 408 | buf[1] = pix; | |
| 409 | buf[ 2 * stride] = pix; | |
| 410 | let pix = ((t[2] + t[3] + 1) >> 1) as u8; | |
| 411 | buf[2] = pix; | |
| 412 | buf[1 + 2 * stride] = pix; | |
| 413 | let pix = ((t[3] + t[4] + 1) >> 1) as u8; | |
| 414 | buf[3] = pix; | |
| 415 | buf[2 + 2 * stride] = pix; | |
| 416 | buf[3 + 2 * stride] = ((t[4] + t[5] + 1) >> 1) as u8; | |
| 417 | buf[ stride] = ((t[0] + 2*t[1] + t[2] + l[2] + 2*l[3] + l[4] + 4) >> 3) as u8; | |
| 418 | let pix = ((t[1] + 2*t[2] + t[3] + 2) >> 2) as u8; | |
| 419 | buf[1 + stride] = pix; | |
| 420 | buf[ 3 * stride] = pix; | |
| 421 | let pix = ((t[2] + 2*t[3] + t[4] + 2) >> 2) as u8; | |
| 422 | buf[2 + stride] = pix; | |
| 423 | buf[1 + 3 * stride] = pix; | |
| 424 | let pix = ((t[3] + 2*t[4] + t[5] + 2) >> 2) as u8; | |
| 425 | buf[3 + stride] = pix; | |
| 426 | buf[2 + 3 * stride] = pix; | |
| 427 | buf[3 + 3 * stride] = ((t[4] + 2*t[5] + t[6] + 2) >> 2) as u8; | |
| 428 | }, | |
| 429 | } | |
| 430 | } | |
| 431 | } | |
| 432 | ||
| 433 | pub struct BlockIntra4Pred { | |
| 434 | pub ipred_y: Intra4Pred, | |
| 435 | pub ipred_u: Intra4Pred, | |
| 436 | pub ipred_v: Intra4Pred, | |
| 437 | pub top_y: [u8; 21], | |
| 438 | pub top_u: [u8; 13], | |
| 439 | pub top_v: [u8; 13], | |
| 440 | pub left_y: [u8; 16], | |
| 441 | pub left_u: [u8; 8], | |
| 442 | pub left_v: [u8; 8], | |
| 443 | pub has_l: bool, | |
| 444 | } | |
| 445 | ||
| 446 | impl BlockIntra4Pred { | |
| 447 | pub fn new(src_y: &IntraPred16x16, src_u: &IntraPred16x16, src_v: &IntraPred16x16, tr_y: [u8; 4], tr_u: [u8; 4], tr_v: [u8; 4], has_l: bool) -> Self { | |
| 448 | let mut top_y = [0; 21]; | |
| 449 | top_y[..17].copy_from_slice(&src_y.top); | |
| 450 | top_y[17..].copy_from_slice(&tr_y); | |
| 451 | let mut top_u = [0; 13]; | |
| 452 | top_u[..9].copy_from_slice(&src_u.top[..9]); | |
| 453 | top_u[9..].copy_from_slice(&tr_u); | |
| 454 | let mut top_v = [0; 13]; | |
| 455 | top_v[..9].copy_from_slice(&src_v.top[..9]); | |
| 456 | top_v[9..].copy_from_slice(&tr_v); | |
| 457 | let mut left_y = [0; 16]; | |
| 458 | left_y.copy_from_slice(&src_y.left[1..]); | |
| 459 | let mut left_u = [0; 8]; | |
| 460 | left_u.copy_from_slice(&src_u.left[1..9]); | |
| 461 | let mut left_v = [0; 8]; | |
| 462 | left_v.copy_from_slice(&src_v.left[1..9]); | |
| 463 | Self { | |
| 464 | ipred_y: Intra4Pred::new(), | |
| 465 | ipred_u: Intra4Pred::new(), | |
| 466 | ipred_v: Intra4Pred::new(), | |
| 467 | top_y, top_u, top_v, left_y, left_u, left_v, | |
| 468 | has_l, | |
| 469 | } | |
| 470 | } | |
| 471 | pub fn pred_block(&mut self, dst: &mut RefMBData, x: usize, y: usize, mode: PredType4x4) { | |
| 472 | let do_chroma = ((x & 1) == 0) && ((y & 1) == 0); | |
| 473 | if x == 0 { | |
| 474 | self.ipred_y.tl = if y == 0 { self.top_y[0] } else { self.left_y[y * 4 - 1] }; | |
| 475 | if y != 3 { | |
| 476 | self.ipred_y.left.copy_from_slice(&self.left_y[y * 4..][..8]); | |
| 477 | } else { | |
| 478 | self.ipred_y.left[..4].copy_from_slice(&self.left_y[12..]); | |
| 479 | } | |
| 480 | if y == 0 { | |
| 481 | self.ipred_u.tl = self.top_u[0]; | |
| 482 | self.ipred_v.tl = self.top_v[0]; | |
| 483 | self.ipred_u.left.copy_from_slice(&self.left_u); | |
| 484 | self.ipred_v.left.copy_from_slice(&self.left_v); | |
| 485 | } else if y == 2 { | |
| 486 | self.ipred_u.tl = self.left_u[3]; | |
| 487 | self.ipred_v.tl = self.left_v[3]; | |
| 488 | self.ipred_u.left[..4].copy_from_slice(&self.left_u[4..]); | |
| 489 | self.ipred_v.left[..4].copy_from_slice(&self.left_v[4..]); | |
| 490 | } | |
| 491 | } | |
| 492 | self.ipred_y.top.copy_from_slice(&self.top_y[x * 4 + 1..][..8]); | |
| 493 | if do_chroma { | |
| 494 | if x == 0 { | |
| 495 | self.ipred_u.top.copy_from_slice(&self.top_u[1..9]); | |
| 496 | self.ipred_v.top.copy_from_slice(&self.top_v[1..9]); | |
| 497 | } else if x == 2 { | |
| 498 | self.ipred_u.top.copy_from_slice(&self.top_u[5..]); | |
| 499 | self.ipred_v.top.copy_from_slice(&self.top_v[5..]); | |
| 500 | } | |
| 501 | } | |
| 502 | ||
| 503 | self.ipred_y.apply(mode, &mut dst.y[x * 4 + y * 4 * 16..], 16); | |
| 504 | if do_chroma { | |
| 505 | let has_ld = if (x == 0) && (y == 0) { self.has_l } else { false }; | |
| 506 | let off = x * 2 + y * 2 * 8; | |
| 507 | let cmode = match mode { | |
| 508 | PredType4x4::DiagDownLeft if !has_ld => PredType4x4::DiagDownLeftNoDown, | |
| 509 | PredType4x4::VerLeft if !has_ld => PredType4x4::VerLeftNoDown, | |
| 510 | PredType4x4::HorUp if !has_ld => PredType4x4::HorUpNoDown, | |
| 511 | _ => mode, | |
| 512 | }; | |
| 513 | self.ipred_u.apply(cmode, &mut dst.u[off..], 8); | |
| 514 | self.ipred_v.apply(cmode, &mut dst.v[off..], 8); | |
| 515 | } | |
| 516 | } | |
| 517 | pub fn update_from(&mut self, src: &RefMBData, x: usize, y: usize) { | |
| 518 | let do_chroma = ((x & 1) == 0) && ((y & 1) == 0); | |
| 519 | let y_off = x * 4 + y * 4 * 16; | |
| 520 | let c_off = x * 2 + y * 2 * 8; | |
| 521 | ||
| 522 | if x != 3 { | |
| 523 | self.ipred_y.tl = self.ipred_y.top[3]; | |
| 524 | for (left, src) in self.ipred_y.left[..4].iter_mut().zip(src.y[y_off + 3..].chunks(16)) { | |
| 525 | *left = src[0]; | |
| 526 | } | |
| 527 | } | |
| 528 | if do_chroma && x != 2 { | |
| 529 | self.ipred_u.tl = self.ipred_u.top[3]; | |
| 530 | self.ipred_v.tl = self.ipred_v.top[3]; | |
| 531 | for (left, src) in self.ipred_u.left[..4].iter_mut().zip(src.u[c_off + 3..].chunks(8)) { | |
| 532 | *left = src[0]; | |
| 533 | } | |
| 534 | for (left, src) in self.ipred_v.left[..4].iter_mut().zip(src.v[c_off + 3..].chunks(8)) { | |
| 535 | *left = src[0]; | |
| 536 | } | |
| 537 | } | |
| 538 | if x == 0 { | |
| 539 | self.top_y[0] = self.left_y[x * 4 + 3]; | |
| 540 | if y == 0 { | |
| 541 | self.top_u[0] = self.left_u[3]; | |
| 542 | self.top_v[0] = self.left_v[3]; | |
| 543 | } | |
| 544 | } | |
| 545 | self.top_y[x * 4 + 1..][..4].copy_from_slice(&src.y[y_off + 3 * 16..][..4]); | |
| 546 | if x == 3 { | |
| 547 | let (head, tail) = self.top_y.split_at_mut(17); | |
| 548 | for el in tail.iter_mut() { | |
| 549 | *el = head[16]; | |
| 550 | } | |
| 551 | } | |
| 552 | if do_chroma && y != 2 { | |
| 553 | self.top_u[x * 2 + 1..][..4].copy_from_slice(&src.u[c_off + 3 * 8..][..4]); | |
| 554 | self.top_v[x * 2 + 1..][..4].copy_from_slice(&src.v[c_off + 3 * 8..][..4]); | |
| 555 | if x == 2 { | |
| 556 | for i in 9..13 { | |
| 557 | self.top_u[i] = self.top_u[8]; | |
| 558 | self.top_v[i] = self.top_v[8]; | |
| 559 | } | |
| 560 | } | |
| 561 | } | |
| 562 | } | |
| 563 | } |