| 1 | use nihav_core::frame::*; |
| 2 | use nihav_core::codecs::*; |
| 3 | use nihav_core::io::byteio::*; |
| 4 | |
| 5 | #[derive(Clone,Copy,Debug,PartialEq)] |
| 6 | enum TileMode { |
| 7 | Start, |
| 8 | Fill, |
| 9 | ShortPattern(u8, u8), |
| 10 | LongPattern(u8, u8), |
| 11 | Run, |
| 12 | Reuse, |
| 13 | FB, |
| 14 | MV, |
| 15 | Forward(u16), |
| 16 | Backward(u16), |
| 17 | Skip, |
| 18 | } |
| 19 | |
| 20 | struct QVideoDecoder { |
| 21 | info: NACodecInfoRef, |
| 22 | pal: [u8; 768], |
| 23 | frame: Vec<u8>, |
| 24 | w: usize, |
| 25 | h: usize, |
| 26 | tile_w: usize, |
| 27 | tile_h: usize, |
| 28 | tile_off: Vec<usize>, |
| 29 | mode: u8, |
| 30 | patterns: [u16; 128], |
| 31 | version: u8, |
| 32 | f8_cache: [[u8; 16]; 240], |
| 33 | } |
| 34 | |
| 35 | macro_rules! copy_tile { |
| 36 | ($self: expr, $doff: expr, $soff: expr) => { |
| 37 | let mut doff = $doff; |
| 38 | let mut soff = $soff; |
| 39 | for _y in 0..$self.tile_h { |
| 40 | for x in 0..$self.tile_w { |
| 41 | $self.frame[doff + x] = $self.frame[soff + x]; |
| 42 | } |
| 43 | doff += $self.w; |
| 44 | soff += $self.w; |
| 45 | } |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | impl QVideoDecoder { |
| 50 | fn new() -> Self { |
| 51 | QVideoDecoder { |
| 52 | info: NACodecInfoRef::default(), |
| 53 | pal: [0; 768], |
| 54 | frame: Vec::new(), |
| 55 | w: 0, |
| 56 | h: 0, |
| 57 | tile_off: Vec::new(), |
| 58 | mode: 0, |
| 59 | tile_w: 0, |
| 60 | tile_h: 0, |
| 61 | patterns: [0; 128], |
| 62 | version: 0, |
| 63 | f8_cache: [[0; 16]; 240], |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | fn decode_mode7_tile(dst: &mut [u8], stride: usize, br: &mut ByteReader) -> DecoderResult<()> { |
| 68 | let op = br.peek_byte()?; |
| 69 | if op < 0xF8 { |
| 70 | for dline in dst.chunks_mut(stride).take(4) { |
| 71 | br.read_buf(&mut dline[..4])?; |
| 72 | } |
| 73 | } else if op == 0xF8 || op == 0xFF { |
| 74 | br.read_byte()?; |
| 75 | } else { |
| 76 | br.read_byte()?; |
| 77 | let mut clr = [0; 8]; |
| 78 | let nclr = (op - 0xF6) as usize; |
| 79 | if nclr <= 4 { |
| 80 | let mut pattern = br.read_u32le()?; |
| 81 | br.read_buf(&mut clr[..nclr])?; |
| 82 | for dline in dst.chunks_mut(stride).take(4) { |
| 83 | for el in dline[..4].iter_mut() { |
| 84 | *el = clr[(pattern & 3) as usize]; |
| 85 | pattern >>= 2; |
| 86 | } |
| 87 | } |
| 88 | } else { |
| 89 | let mut pattern = br.read_u24le()?; |
| 90 | let pattern2 = br.read_u24le()?; |
| 91 | br.read_buf(&mut clr[..nclr])?; |
| 92 | for (y, dline) in dst.chunks_mut(stride).take(4).enumerate() { |
| 93 | for el in dline[..4].iter_mut() { |
| 94 | *el = clr[(pattern & 7) as usize]; |
| 95 | pattern >>= 3; |
| 96 | } |
| 97 | if y == 1 { |
| 98 | pattern = pattern2; |
| 99 | } |
| 100 | } |
| 101 | } |
| 102 | } |
| 103 | Ok(()) |
| 104 | } |
| 105 | |
| 106 | fn decode_frame_v3(&mut self, br: &mut ByteReader, _ctype: u16) -> DecoderResult<()> { |
| 107 | let mut titer = self.tile_off.iter().enumerate(); |
| 108 | let mut skip_mode = false; |
| 109 | while let Some((tile_no, &tile_off)) = titer.next() { |
| 110 | let op = br.read_byte()?; |
| 111 | if op < 0xF8 { |
| 112 | let clr0 = op; |
| 113 | let clr1 = br.read_byte()?; |
| 114 | if clr0 == clr1 { |
| 115 | for dline in self.frame[tile_off..].chunks_mut(self.w).take(self.tile_h) { |
| 116 | for el in dline[..self.tile_w].iter_mut() { |
| 117 | *el = clr0; |
| 118 | } |
| 119 | } |
| 120 | } else { |
| 121 | let mut pattern = br.read_u16le()?; |
| 122 | for dline in self.frame[tile_off..].chunks_mut(self.w).take(self.tile_h) { |
| 123 | for el in dline[..self.tile_w].iter_mut() { |
| 124 | *el = if (pattern & 0x8000) == 0 { clr0 } else { clr1 }; |
| 125 | pattern <<= 1; |
| 126 | } |
| 127 | } |
| 128 | } |
| 129 | } else { |
| 130 | match op { |
| 131 | 0xF8 => { |
| 132 | unimplemented!(); |
| 133 | }, |
| 134 | 0xF9 => { |
| 135 | let run = br.read_byte()? as usize; |
| 136 | validate!(run > 0); |
| 137 | |
| 138 | validate!(tile_no > 0); |
| 139 | let mut tile_off = tile_off; |
| 140 | for i in 0..run { |
| 141 | if !skip_mode { |
| 142 | copy_tile!(self, tile_off, self.tile_off[tile_no - 1]); |
| 143 | } |
| 144 | if i + 1 < run { |
| 145 | let (_tno, &toff) = titer.next().unwrap(); |
| 146 | tile_off = toff; |
| 147 | } |
| 148 | } |
| 149 | }, |
| 150 | 0xFA => { |
| 151 | let off = br.read_u16le()? as usize; |
| 152 | validate!(tile_no + off < self.tile_off.len()); |
| 153 | copy_tile!(self, tile_off, self.tile_off[tile_no + off]); |
| 154 | }, |
| 155 | 0xFB => { |
| 156 | let off = br.read_u16le()? as usize; |
| 157 | validate!(off <= tile_no); |
| 158 | copy_tile!(self, tile_off, self.tile_off[tile_no - off]); |
| 159 | }, |
| 160 | 0xFC => { |
| 161 | const MV_PART: [i8; 16] = [ 0, 4, 8, 12, 16, 20, 24, 28, -32, -4, -8, -12, -16, -20, -24, -28 ]; |
| 162 | |
| 163 | let idx = br.read_byte()? as usize; |
| 164 | let x = MV_PART[idx & 0xF] as isize; |
| 165 | let y = MV_PART[idx >> 4] as isize; |
| 166 | let src_off = (tile_off as isize) + x + y * (self.w as isize); |
| 167 | validate!(src_off >= 0); |
| 168 | validate!((src_off as usize) + self.tile_w + (self.tile_h - 1) * self.w <= self.w * self.h); |
| 169 | |
| 170 | copy_tile!(self, tile_off, src_off as usize); |
| 171 | }, |
| 172 | 0xFD => { |
| 173 | let off = (br.read_byte()? as usize) + 1; |
| 174 | validate!(tile_no + off < self.tile_off.len()); |
| 175 | copy_tile!(self, tile_off, self.tile_off[tile_no + off]); |
| 176 | }, |
| 177 | 0xFE => { |
| 178 | let off = (br.read_byte()? as usize) + 1; |
| 179 | validate!(off <= tile_no); |
| 180 | copy_tile!(self, tile_off, self.tile_off[tile_no - off]); |
| 181 | }, |
| 182 | _ => {}, |
| 183 | }; |
| 184 | } |
| 185 | skip_mode = op == 0xFF; |
| 186 | } |
| 187 | |
| 188 | Ok(()) |
| 189 | } |
| 190 | |
| 191 | fn decode_frame_5(&mut self, br: &mut ByteReader, _ctype: u16) -> DecoderResult<()> { |
| 192 | let mut titer = self.tile_off.iter().enumerate(); |
| 193 | let mut last_mode = TileMode::Start; |
| 194 | |
| 195 | while let Some((tile_no, &tile_off)) = titer.next() { |
| 196 | let op = br.read_byte()?; |
| 197 | if op < 0xF8 { |
| 198 | let clr0 = op; |
| 199 | let clr1 = br.read_byte()?; |
| 200 | if clr0 == clr1 { |
| 201 | for dline in self.frame[tile_off..].chunks_mut(self.w).take(self.tile_h) { |
| 202 | for el in dline[..self.tile_w].iter_mut() { |
| 203 | *el = clr0; |
| 204 | } |
| 205 | } |
| 206 | last_mode = TileMode::Fill; |
| 207 | } else { |
| 208 | let pat = br.read_byte()?; |
| 209 | let mut pattern = if pat < 128 { |
| 210 | last_mode = TileMode::ShortPattern(clr0, clr1); |
| 211 | self.patterns[pat as usize] |
| 212 | } else { |
| 213 | last_mode = TileMode::LongPattern(clr0, clr1); |
| 214 | u16::from(pat) | (u16::from(br.read_byte()?) << 8) |
| 215 | }; |
| 216 | for dline in self.frame[tile_off..].chunks_mut(self.w).take(self.tile_h) { |
| 217 | for el in dline[..self.tile_w].iter_mut() { |
| 218 | *el = if (pattern & 0x8000) == 0 { clr0 } else { clr1 }; |
| 219 | pattern <<= 1; |
| 220 | } |
| 221 | } |
| 222 | } |
| 223 | } else { |
| 224 | match op { |
| 225 | 0xF8 => { |
| 226 | unimplemented!(); |
| 227 | }, |
| 228 | 0xF9 => { |
| 229 | let run = br.read_byte()? as usize; |
| 230 | validate!(run > 0); |
| 231 | |
| 232 | validate!(tile_no > 0); |
| 233 | validate!(last_mode != TileMode::Start); |
| 234 | let mut tile_no = tile_no; |
| 235 | let mut tile_off = tile_off; |
| 236 | for i in 0..run { |
| 237 | let copy_off = match last_mode { |
| 238 | TileMode::Forward(off) => { |
| 239 | tile_no + (off as usize) |
| 240 | }, |
| 241 | TileMode::Backward(off) => { |
| 242 | validate!(tile_no >= (off as usize)); |
| 243 | tile_no - (off as usize) |
| 244 | }, |
| 245 | TileMode::Skip => self.tile_off.len(), |
| 246 | _ => tile_no - 1, |
| 247 | }; |
| 248 | if copy_off < self.tile_off.len() { |
| 249 | copy_tile!(self, tile_off, self.tile_off[copy_off]); |
| 250 | } |
| 251 | if i + 1 < run { |
| 252 | let (tno, &toff) = titer.next().unwrap(); |
| 253 | tile_no = tno; |
| 254 | tile_off = toff; |
| 255 | } |
| 256 | } |
| 257 | last_mode = TileMode::Run; |
| 258 | }, |
| 259 | 0xFA => { |
| 260 | let rtile = br.read_u16le()? as usize; |
| 261 | validate!(rtile < self.tile_off.len()); |
| 262 | copy_tile!(self, tile_off, self.tile_off[rtile]); |
| 263 | last_mode = TileMode::Reuse; |
| 264 | }, |
| 265 | 0xFB => { |
| 266 | match self.mode { |
| 267 | 6 => { |
| 268 | let run = br.read_byte()? as usize; |
| 269 | validate!(run >= 2); |
| 270 | let mut tile_no = tile_no; |
| 271 | let mut tile_off = tile_off; |
| 272 | for i in 0..run { |
| 273 | match last_mode { |
| 274 | TileMode::Start => return Err(DecoderError::InvalidData), |
| 275 | TileMode::Fill => { |
| 276 | let clr = br.read_byte()?; |
| 277 | for dline in self.frame[tile_off..].chunks_mut(self.w).take(self.tile_h) { |
| 278 | for el in dline[..self.tile_w].iter_mut() { |
| 279 | *el = clr; |
| 280 | } |
| 281 | } |
| 282 | }, |
| 283 | TileMode::ShortPattern(clr0, clr1) => { |
| 284 | let pat = br.read_byte()?; |
| 285 | let mut pattern = if pat < 128 { |
| 286 | self.patterns[pat as usize] |
| 287 | } else { |
| 288 | u16::from(pat) | (u16::from(br.read_byte()?) << 8) |
| 289 | }; |
| 290 | for dline in self.frame[tile_off..].chunks_mut(self.w).take(self.tile_h) { |
| 291 | for el in dline[..self.tile_w].iter_mut() { |
| 292 | *el = if (pattern & 0x8000) == 0 { clr0 } else { clr1 }; |
| 293 | pattern <<= 1; |
| 294 | } |
| 295 | } |
| 296 | }, |
| 297 | TileMode::LongPattern(clr0, clr1) => { |
| 298 | let mut pattern = br.read_u16le()?; |
| 299 | for dline in self.frame[tile_off..].chunks_mut(self.w).take(self.tile_h) { |
| 300 | for el in dline[..self.tile_w].iter_mut() { |
| 301 | *el = if (pattern & 0x8000) == 0 { clr0 } else { clr1 }; |
| 302 | pattern <<= 1; |
| 303 | } |
| 304 | } |
| 305 | }, |
| 306 | TileMode::Reuse => { |
| 307 | let rtile = br.read_u16le()? as usize; |
| 308 | validate!(rtile < self.tile_off.len()); |
| 309 | copy_tile!(self, tile_off, self.tile_off[rtile]); |
| 310 | }, |
| 311 | TileMode::MV => { |
| 312 | let idx = br.read_byte()? as usize; |
| 313 | let (x, y) = DEF_MVS[idx]; |
| 314 | let src_off = (tile_off as isize) + (x as isize) * 4 + (y as isize) * 4 * (self.w as isize); |
| 315 | validate!(src_off >= 0); |
| 316 | validate!((src_off as usize) + self.tile_w + (self.tile_h - 1) * self.w <= self.w * self.h); |
| 317 | copy_tile!(self, tile_off, src_off as usize); |
| 318 | }, |
| 319 | TileMode::Forward(_) => { |
| 320 | let off = (br.read_byte()? as usize) + 1; |
| 321 | validate!(tile_no + off < self.tile_off.len()); |
| 322 | copy_tile!(self, tile_off, self.tile_off[tile_no + off]); |
| 323 | }, |
| 324 | TileMode::Backward(_) => { |
| 325 | let off = (br.read_byte()? as usize) + 1; |
| 326 | validate!(off <= tile_no); |
| 327 | copy_tile!(self, tile_off, self.tile_off[tile_no - off]); |
| 328 | }, |
| 329 | _ => unimplemented!(), |
| 330 | }; |
| 331 | |
| 332 | if i + 1 < run { |
| 333 | let (tno, &toff) = titer.next().unwrap(); |
| 334 | tile_no = tno; |
| 335 | tile_off = toff; |
| 336 | } |
| 337 | } |
| 338 | }, |
| 339 | 7 => { |
| 340 | validate!(self.tile_w == 4 && self.tile_h == 4); |
| 341 | let run = br.read_byte()? as usize; |
| 342 | validate!(run > 0); |
| 343 | |
| 344 | let mut tile_off = tile_off; |
| 345 | for i in 0..run { |
| 346 | Self::decode_mode7_tile(&mut self.frame[tile_off..], self.w, br)?; |
| 347 | |
| 348 | if i + 1 < run { |
| 349 | let (_tno, &toff) = titer.next().unwrap(); |
| 350 | tile_off = toff; |
| 351 | } |
| 352 | } |
| 353 | }, |
| 354 | _ => { |
| 355 | unimplemented!(); |
| 356 | }, |
| 357 | }; |
| 358 | last_mode = TileMode::FB; |
| 359 | }, |
| 360 | 0xFC => { |
| 361 | let idx = br.read_byte()? as usize; |
| 362 | let (x, y) = DEF_MVS[idx]; |
| 363 | let src_off = (tile_off as isize) + (x as isize) * 4 + (y as isize) * 4 * (self.w as isize); |
| 364 | validate!(src_off >= 0); |
| 365 | validate!((src_off as usize) + self.tile_w + (self.tile_h - 1) * self.w <= self.w * self.h); |
| 366 | |
| 367 | copy_tile!(self, tile_off, src_off as usize); |
| 368 | last_mode = TileMode::MV; |
| 369 | }, |
| 370 | 0xFD => { |
| 371 | let off = (br.read_byte()? as usize) + 1; |
| 372 | validate!(tile_no + off < self.tile_off.len()); |
| 373 | copy_tile!(self, tile_off, self.tile_off[tile_no + off]); |
| 374 | last_mode = TileMode::Forward(off as u16); |
| 375 | }, |
| 376 | 0xFE => { |
| 377 | let off = (br.read_byte()? as usize) + 1; |
| 378 | validate!(off <= tile_no); |
| 379 | copy_tile!(self, tile_off, self.tile_off[tile_no - off]); |
| 380 | last_mode = TileMode::Backward(off as u16); |
| 381 | }, |
| 382 | _ => { |
| 383 | last_mode = TileMode::Skip; |
| 384 | }, |
| 385 | }; |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | Ok(()) |
| 390 | } |
| 391 | fn decode_frame_7(&mut self, br: &mut ByteReader, _ctype: u16) -> DecoderResult<()> { |
| 392 | let mut titer = self.tile_off.iter().enumerate(); |
| 393 | let mut last_mode = TileMode::Start; |
| 394 | |
| 395 | let mut f8_mode = false; |
| 396 | let row_size = self.w / self.tile_w; |
| 397 | let mut next_row = 0; |
| 398 | let mut f8_data = [0; 16]; |
| 399 | let mut f8_pos = 0; |
| 400 | |
| 401 | while let Some((tile_no, &tile_off)) = titer.next() { |
| 402 | if tile_no == next_row { |
| 403 | f8_mode = false; |
| 404 | next_row += row_size; |
| 405 | } |
| 406 | while br.peek_byte()? == 0xF8 { |
| 407 | br.read_byte()?; |
| 408 | if f8_mode { |
| 409 | f8_mode = false; |
| 410 | } else { |
| 411 | let idx = br.read_byte()? as usize; |
| 412 | if idx < 0x10 { |
| 413 | validate!(f8_pos < self.f8_cache.len()); |
| 414 | br.peek_buf(&mut self.f8_cache[f8_pos])?; |
| 415 | if idx > 0 { |
| 416 | br.read_skip(idx)?; |
| 417 | } |
| 418 | f8_data = self.f8_cache[f8_pos]; |
| 419 | } else { |
| 420 | f8_data = self.f8_cache[idx - 0x10]; |
| 421 | self.f8_cache[f8_pos] = f8_data; |
| 422 | } |
| 423 | f8_pos += 1; |
| 424 | f8_mode = true; |
| 425 | } |
| 426 | } |
| 427 | |
| 428 | let op = br.read_byte()?; |
| 429 | if op < 0xF8 { |
| 430 | let (clr0, clr1) = if !f8_mode { |
| 431 | if br.peek_byte()? < 0xF8 { |
| 432 | (op, br.read_byte()?) |
| 433 | } else { |
| 434 | (op, op) |
| 435 | } |
| 436 | } else { |
| 437 | (f8_data[(op & 0xF) as usize], f8_data[(op >> 4) as usize]) |
| 438 | }; |
| 439 | if clr0 == clr1 && (!f8_mode || ((op & 0xF) == (op >> 4))) { |
| 440 | for dline in self.frame[tile_off..].chunks_mut(self.w).take(self.tile_h) { |
| 441 | for el in dline[..self.tile_w].iter_mut() { |
| 442 | *el = clr0; |
| 443 | } |
| 444 | } |
| 445 | last_mode = TileMode::Fill; |
| 446 | } else { |
| 447 | let pat = br.read_byte()?; |
| 448 | let mut pattern = if pat < 128 { |
| 449 | last_mode = TileMode::ShortPattern(clr0, clr1); |
| 450 | self.patterns[pat as usize] |
| 451 | } else { |
| 452 | last_mode = TileMode::LongPattern(clr0, clr1); |
| 453 | u16::from(pat) | (u16::from(br.read_byte()?) << 8) |
| 454 | }; |
| 455 | for dline in self.frame[tile_off..].chunks_mut(self.w).take(self.tile_h) { |
| 456 | for el in dline[..self.tile_w].iter_mut() { |
| 457 | *el = if (pattern & 0x8000) == 0 { clr0 } else { clr1 }; |
| 458 | pattern <<= 1; |
| 459 | } |
| 460 | } |
| 461 | } |
| 462 | } else { |
| 463 | match op { |
| 464 | 0xF8 => { |
| 465 | unreachable!(); |
| 466 | }, |
| 467 | 0xF9 => { |
| 468 | let run = br.read_byte()? as usize; |
| 469 | validate!(run > 0); |
| 470 | |
| 471 | validate!(tile_no > 0); |
| 472 | validate!(last_mode != TileMode::Start); |
| 473 | let mut tile_no = tile_no; |
| 474 | let mut tile_off = tile_off; |
| 475 | for i in 0..run { |
| 476 | let copy_off = match last_mode { |
| 477 | TileMode::Forward(off) => { |
| 478 | tile_no + (off as usize) |
| 479 | }, |
| 480 | TileMode::Backward(off) => { |
| 481 | validate!(tile_no >= (off as usize)); |
| 482 | tile_no - (off as usize) |
| 483 | }, |
| 484 | TileMode::Skip => self.tile_off.len(), |
| 485 | _ => tile_no - 1, |
| 486 | }; |
| 487 | if copy_off < self.tile_off.len() { |
| 488 | copy_tile!(self, tile_off, self.tile_off[copy_off]); |
| 489 | } |
| 490 | if i + 1 < run { |
| 491 | let (tno, &toff) = titer.next().unwrap(); |
| 492 | tile_no = tno; |
| 493 | tile_off = toff; |
| 494 | } |
| 495 | } |
| 496 | last_mode = TileMode::Run; |
| 497 | }, |
| 498 | 0xFA => { |
| 499 | let rtile = br.read_u16le()? as usize; |
| 500 | validate!(rtile < self.tile_off.len()); |
| 501 | copy_tile!(self, tile_off, self.tile_off[rtile]); |
| 502 | last_mode = TileMode::Reuse; |
| 503 | }, |
| 504 | 0xFB => { |
| 505 | match self.mode { |
| 506 | 6 => { |
| 507 | let run = br.read_byte()? as usize; |
| 508 | validate!(run >= 2); |
| 509 | let mut tile_no = tile_no; |
| 510 | let mut tile_off = tile_off; |
| 511 | for i in 0..run { |
| 512 | match last_mode { |
| 513 | TileMode::Start => return Err(DecoderError::InvalidData), |
| 514 | TileMode::Fill => { |
| 515 | let clr = br.read_byte()?; |
| 516 | for dline in self.frame[tile_off..].chunks_mut(self.w).take(self.tile_h) { |
| 517 | for el in dline[..self.tile_w].iter_mut() { |
| 518 | *el = clr; |
| 519 | } |
| 520 | } |
| 521 | }, |
| 522 | TileMode::ShortPattern(clr0, clr1) => { |
| 523 | let pat = br.read_byte()?; |
| 524 | let mut pattern = if pat < 128 { |
| 525 | self.patterns[pat as usize] |
| 526 | } else { |
| 527 | u16::from(pat) | (u16::from(br.read_byte()?) << 8) |
| 528 | }; |
| 529 | for dline in self.frame[tile_off..].chunks_mut(self.w).take(self.tile_h) { |
| 530 | for el in dline[..self.tile_w].iter_mut() { |
| 531 | *el = if (pattern & 0x8000) == 0 { clr0 } else { clr1 }; |
| 532 | pattern <<= 1; |
| 533 | } |
| 534 | } |
| 535 | }, |
| 536 | TileMode::LongPattern(clr0, clr1) => { |
| 537 | let mut pattern = br.read_u16le()?; |
| 538 | for dline in self.frame[tile_off..].chunks_mut(self.w).take(self.tile_h) { |
| 539 | for el in dline[..self.tile_w].iter_mut() { |
| 540 | *el = if (pattern & 0x8000) == 0 { clr0 } else { clr1 }; |
| 541 | pattern <<= 1; |
| 542 | } |
| 543 | } |
| 544 | }, |
| 545 | TileMode::Reuse => { |
| 546 | let rtile = br.read_u16le()? as usize; |
| 547 | validate!(rtile < self.tile_off.len()); |
| 548 | copy_tile!(self, tile_off, self.tile_off[rtile]); |
| 549 | }, |
| 550 | TileMode::MV => { |
| 551 | let idx = br.read_byte()? as usize; |
| 552 | let (x, y) = DEF_MVS[idx]; |
| 553 | let src_off = (tile_off as isize) + (x as isize) * 4 + (y as isize) * 4 * (self.w as isize); |
| 554 | validate!(src_off >= 0); |
| 555 | validate!((src_off as usize) + self.tile_w + (self.tile_h - 1) * self.w <= self.w * self.h); |
| 556 | copy_tile!(self, tile_off, src_off as usize); |
| 557 | }, |
| 558 | TileMode::Forward(_) => { |
| 559 | let off = (br.read_byte()? as usize) + 1; |
| 560 | validate!(tile_no + off < self.tile_off.len()); |
| 561 | copy_tile!(self, tile_off, self.tile_off[tile_no + off]); |
| 562 | }, |
| 563 | TileMode::Backward(_) => { |
| 564 | let off = (br.read_byte()? as usize) + 1; |
| 565 | validate!(off <= tile_no); |
| 566 | copy_tile!(self, tile_off, self.tile_off[tile_no - off]); |
| 567 | }, |
| 568 | _ => unimplemented!(), |
| 569 | }; |
| 570 | |
| 571 | if i + 1 < run { |
| 572 | let (tno, &toff) = titer.next().unwrap(); |
| 573 | tile_no = tno; |
| 574 | tile_off = toff; |
| 575 | } |
| 576 | } |
| 577 | }, |
| 578 | 7 => { |
| 579 | validate!(self.tile_w == 4 && self.tile_h == 4); |
| 580 | let run = br.read_byte()? as usize; |
| 581 | validate!(run > 0); |
| 582 | |
| 583 | let mut tile_off = tile_off; |
| 584 | for i in 0..run { |
| 585 | Self::decode_mode7_tile(&mut self.frame[tile_off..], self.w, br)?; |
| 586 | |
| 587 | if i + 1 < run { |
| 588 | let (_tno, &toff) = titer.next().unwrap(); |
| 589 | tile_off = toff; |
| 590 | } |
| 591 | } |
| 592 | }, |
| 593 | _ => { |
| 594 | unimplemented!(); |
| 595 | }, |
| 596 | }; |
| 597 | last_mode = TileMode::FB; |
| 598 | }, |
| 599 | 0xFC => { |
| 600 | let idx = br.read_byte()? as usize; |
| 601 | let (x, y) = DEF_MVS[idx]; |
| 602 | let src_off = (tile_off as isize) + (x as isize) * 4 + (y as isize) * 4 * (self.w as isize); |
| 603 | validate!(src_off >= 0); |
| 604 | validate!((src_off as usize) + self.tile_w + (self.tile_h - 1) * self.w <= self.w * self.h); |
| 605 | |
| 606 | copy_tile!(self, tile_off, src_off as usize); |
| 607 | last_mode = TileMode::MV; |
| 608 | }, |
| 609 | 0xFD => { |
| 610 | let off = (br.read_byte()? as usize) + 1; |
| 611 | validate!(tile_no + off < self.tile_off.len()); |
| 612 | copy_tile!(self, tile_off, self.tile_off[tile_no + off]); |
| 613 | last_mode = TileMode::Forward(off as u16); |
| 614 | }, |
| 615 | 0xFE => { |
| 616 | let off = (br.read_byte()? as usize) + 1; |
| 617 | validate!(off <= tile_no); |
| 618 | copy_tile!(self, tile_off, self.tile_off[tile_no - off]); |
| 619 | last_mode = TileMode::Backward(off as u16); |
| 620 | }, |
| 621 | _ => { |
| 622 | last_mode = TileMode::Skip; |
| 623 | }, |
| 624 | }; |
| 625 | } |
| 626 | } |
| 627 | |
| 628 | Ok(()) |
| 629 | } |
| 630 | |
| 631 | fn output_frame(&mut self, bufinfo: &mut NABufferType, w: usize, h: usize) { |
| 632 | let bufo = bufinfo.get_vbuf(); |
| 633 | let mut buf = bufo.unwrap(); |
| 634 | let paloff = buf.get_offset(1); |
| 635 | let stride = buf.get_stride(0); |
| 636 | let data = buf.get_data_mut().unwrap(); |
| 637 | let dst = data.as_mut_slice(); |
| 638 | |
| 639 | dst[paloff..][..768].copy_from_slice(&self.pal); |
| 640 | for (dline, sline) in dst.chunks_mut(stride).zip(self.frame.chunks(w)).take(h) { |
| 641 | dline[..w].copy_from_slice(sline); |
| 642 | } |
| 643 | } |
| 644 | } |
| 645 | |
| 646 | impl NADecoder for QVideoDecoder { |
| 647 | fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> { |
| 648 | if let NACodecTypeInfo::Video(_vinfo) = info.get_properties() { |
| 649 | let mut w; |
| 650 | let mut h; |
| 651 | if let Some(buf) = info.get_extradata() { |
| 652 | validate!(buf.len() >= 22); |
| 653 | w = read_u16le(&buf[4..])? as usize; |
| 654 | h = read_u16le(&buf[6..])? as usize; |
| 655 | self.tile_w = buf[8] as usize; |
| 656 | self.tile_h = buf[9] as usize; |
| 657 | validate!(self.tile_w > 0 && self.tile_h > 0); |
| 658 | if self.tile_w != 4 || self.tile_h != 4 { |
| 659 | return Err(DecoderError::NotImplemented); |
| 660 | } |
| 661 | self.version = buf[2]; |
| 662 | if self.version != 3{ |
| 663 | w *= self.tile_w; |
| 664 | h *= self.tile_h; |
| 665 | } else { |
| 666 | validate!((w % self.tile_w) == 0); |
| 667 | validate!((h % self.tile_h) == 0); |
| 668 | } |
| 669 | } else { |
| 670 | return Err(DecoderError::InvalidData); |
| 671 | } |
| 672 | let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(w, h, false, PAL8_FORMAT)); |
| 673 | self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref(); |
| 674 | self.w = w; |
| 675 | self.h = h; |
| 676 | |
| 677 | self.mode = match self.version { |
| 678 | 4 => 6, |
| 679 | 5 => 7, |
| 680 | 6 => 7, |
| 681 | 7 => 7, |
| 682 | _ => 0, |
| 683 | }; |
| 684 | |
| 685 | self.frame.resize(w * h, 0); |
| 686 | self.pal = [0; 768]; |
| 687 | self.tile_off = Vec::with_capacity((w / self.tile_w) * (h / self.tile_h)); |
| 688 | let mut off = 0; |
| 689 | for _y in (0..h).step_by(self.tile_h) { |
| 690 | for x in (0..w).step_by(self.tile_w) { |
| 691 | self.tile_off.push(off + x); |
| 692 | } |
| 693 | off += w * self.tile_h; |
| 694 | } |
| 695 | Ok(()) |
| 696 | } else { |
| 697 | Err(DecoderError::InvalidData) |
| 698 | } |
| 699 | } |
| 700 | fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { |
| 701 | let src = pkt.get_buffer(); |
| 702 | validate!(!src.is_empty()); |
| 703 | |
| 704 | let mut mr = MemoryReader::new_read(&src); |
| 705 | let mut br = ByteReader::new(&mut mr); |
| 706 | |
| 707 | while br.left() >= 6 { |
| 708 | let ctype = br.read_u16le()?; |
| 709 | let csize = br.read_u32le()? as usize; |
| 710 | validate!(csize <= (br.left() as usize)); |
| 711 | match ctype { |
| 712 | 1 => { |
| 713 | validate!(csize <= 768); |
| 714 | br.read_buf(&mut self.pal[..csize])?; |
| 715 | for el in self.pal[..csize].iter_mut() { |
| 716 | *el = (*el << 2) | (*el >> 4); |
| 717 | } |
| 718 | }, |
| 719 | 2 | 3 | 4 | 9 | 11 => { |
| 720 | if self.version == 5 { |
| 721 | self.mode = if ctype == 9 || ctype == 11 { 7 } else { 6 }; |
| 722 | } |
| 723 | if self.version == 3 { |
| 724 | self.decode_frame_v3(&mut br, ctype)?; |
| 725 | } else if self.version < 6 { |
| 726 | self.decode_frame_5(&mut br, ctype)?; |
| 727 | } else { |
| 728 | self.mode = if ctype == 11 { 7 } else { 6 }; |
| 729 | self.decode_frame_7(&mut br, ctype)?; |
| 730 | } |
| 731 | }, |
| 732 | 5 => { |
| 733 | validate!(csize <= 256 && (csize & 1) == 0); |
| 734 | for el in self.patterns[..csize/2].iter_mut() { |
| 735 | *el = br.read_u16le()?; |
| 736 | } |
| 737 | }, |
| 738 | 6 | 7 => { |
| 739 | self.mode = ctype as u8; |
| 740 | }, |
| 741 | _ => return Err(DecoderError::InvalidData), |
| 742 | }; |
| 743 | } |
| 744 | |
| 745 | let mut bufinfo = alloc_video_buffer(self.info.get_properties().get_video_info().unwrap(), 0)?; |
| 746 | |
| 747 | self.output_frame(&mut bufinfo, self.w, self.h); |
| 748 | |
| 749 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo); |
| 750 | frm.set_frame_type(if pkt.is_keyframe() { FrameType::I } else { FrameType::P }); |
| 751 | Ok(frm.into_ref()) |
| 752 | } |
| 753 | fn flush(&mut self) { |
| 754 | } |
| 755 | } |
| 756 | |
| 757 | impl NAOptionHandler for QVideoDecoder { |
| 758 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 759 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 760 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 761 | } |
| 762 | |
| 763 | pub fn get_decoder() -> Box<dyn NADecoder + Send> { |
| 764 | Box::new(QVideoDecoder::new()) |
| 765 | } |
| 766 | |
| 767 | #[cfg(test)] |
| 768 | mod test { |
| 769 | use nihav_core::codecs::RegisteredDecoders; |
| 770 | use nihav_core::demuxers::RegisteredDemuxers; |
| 771 | use nihav_codec_support::test::dec_video::*; |
| 772 | use crate::game_register_all_decoders; |
| 773 | use crate::game_register_all_demuxers; |
| 774 | |
| 775 | // samples from Callahan's Crosstime Saloon, Deathgate, Mission Critical and Shannara games |
| 776 | #[test] |
| 777 | fn test_q_video3() { |
| 778 | let mut dmx_reg = RegisteredDemuxers::new(); |
| 779 | game_register_all_demuxers(&mut dmx_reg); |
| 780 | let mut dec_reg = RegisteredDecoders::new(); |
| 781 | game_register_all_decoders(&mut dec_reg); |
| 782 | |
| 783 | test_decoding("legend-q", "legend-q-video", "assets/Game/dgate101.q", Some(31), &dmx_reg, &dec_reg, |
| 784 | ExpectedTestResult::MD5([0x9cc0014c, 0xf6332802, 0xfabeb715, 0xdfaa11c0])); |
| 785 | } |
| 786 | #[test] |
| 787 | fn test_q_video4() { |
| 788 | let mut dmx_reg = RegisteredDemuxers::new(); |
| 789 | game_register_all_demuxers(&mut dmx_reg); |
| 790 | let mut dec_reg = RegisteredDecoders::new(); |
| 791 | game_register_all_decoders(&mut dec_reg); |
| 792 | |
| 793 | test_decoding("legend-q", "legend-q-video", "assets/Game/1925.Q", None, &dmx_reg, &dec_reg, |
| 794 | ExpectedTestResult::MD5([0xe1af971a, 0xfb509816, 0x9d60f5d6, 0xbcf48a3b])); |
| 795 | } |
| 796 | #[test] |
| 797 | fn test_q_video5() { |
| 798 | let mut dmx_reg = RegisteredDemuxers::new(); |
| 799 | game_register_all_demuxers(&mut dmx_reg); |
| 800 | let mut dec_reg = RegisteredDecoders::new(); |
| 801 | game_register_all_decoders(&mut dec_reg); |
| 802 | |
| 803 | test_decoding("legend-q", "legend-q-video", "assets/Game/mc703.q", Some(16), &dmx_reg, &dec_reg, |
| 804 | ExpectedTestResult::MD5([0xf65ea3ce, 0x3052b2bb, 0xb10f8f69, 0x530d60f9])); |
| 805 | } |
| 806 | #[test] |
| 807 | fn test_q_video7() { |
| 808 | let mut dmx_reg = RegisteredDemuxers::new(); |
| 809 | game_register_all_demuxers(&mut dmx_reg); |
| 810 | let mut dec_reg = RegisteredDecoders::new(); |
| 811 | game_register_all_decoders(&mut dec_reg); |
| 812 | |
| 813 | test_decoding("legend-q", "legend-q-video", "assets/Game/CCS003.Q", Some(16), &dmx_reg, &dec_reg, |
| 814 | ExpectedTestResult::MD5([0x4c0f0712, 0xc6c39f5b, 0x5bb6902f, 0x9119940e])); |
| 815 | } |
| 816 | } |
| 817 | |
| 818 | const DEF_MVS: [(i8, i8); 256] = [ |
| 819 | ( 0, 8), ( 1, 8), ( 2, 8), ( 3, 8), ( 4, 8), ( 5, 8), ( 6, 8), ( 7, 8), |
| 820 | (-8, 8), (-1, 8), (-2, 8), (-3, 8), (-4, 8), (-5, 8), (-6, 8), (-7, 8), |
| 821 | ( 0, 9), ( 1, 9), ( 2, 9), ( 3, 9), ( 4, 9), ( 5, 9), ( 6, 9), ( 7, 9), |
| 822 | (-8, 9), (-1, 9), (-2, 9), (-3, 9), (-4, 9), (-5, 9), (-6, 9), (-7, 9), |
| 823 | ( 0, 2), ( 1, 2), ( 2, 2), ( 3, 2), ( 4, 2), ( 5, 2), ( 6, 2), ( 7, 2), |
| 824 | (-8, 2), (-1, 2), (-2, 2), (-3, 2), (-4, 2), (-5, 2), (-6, 2), (-7, 2), |
| 825 | ( 0, 3), ( 1, 3), ( 2, 3), ( 3, 3), ( 4, 3), ( 5, 3), ( 6, 3), ( 7, 3), |
| 826 | (-8, 3), (-1, 3), (-2, 3), (-3, 3), (-4, 3), (-5, 3), (-6, 3), (-7, 3), |
| 827 | ( 0, 4), ( 1, 4), ( 2, 4), ( 3, 4), ( 4, 4), ( 5, 4), ( 6, 4), ( 7, 4), |
| 828 | (-8, 4), (-1, 4), (-2, 4), (-3, 4), (-4, 4), (-5, 4), (-6, 4), (-7, 4), |
| 829 | ( 0, 5), ( 1, 5), ( 2, 5), ( 3, 5), ( 4, 5), ( 5, 5), ( 6, 5), ( 7, 5), |
| 830 | (-8, 5), (-1, 5), (-2, 5), (-3, 5), (-4, 5), (-5, 5), (-6, 5), (-7, 5), |
| 831 | ( 0, 6), ( 1, 6), ( 2, 6), ( 3, 6), ( 4, 6), ( 5, 6), ( 6, 6), ( 7, 6), |
| 832 | (-8, 6), (-1, 6), (-2, 6), (-3, 6), (-4, 6), (-5, 6), (-6, 6), (-7, 6), |
| 833 | ( 0, 7), ( 1, 7), ( 2, 7), ( 3, 7), ( 4, 7), ( 5, 7), ( 6, 7), ( 7, 7), |
| 834 | (-8, 7), (-1, 7), (-2, 7), (-3, 7), (-4, 7), (-5, 7), (-6, 7), (-7, 7), |
| 835 | ( 0,-8), ( 1,-8), ( 2,-8), ( 3,-8), ( 4,-8), ( 5,-8), ( 6,-8), ( 7,-8), |
| 836 | (-8,-8), (-1,-8), (-2,-8), (-3,-8), (-4,-8), (-5,-8), (-6,-8), (-7,-8), |
| 837 | ( 0,-9), ( 1,-9), ( 2,-9), ( 3,-9), ( 4,-9), ( 5,-9), ( 6,-9), ( 7,-9), |
| 838 | (-8,-9), (-1,-9), (-2,-9), (-3,-9), (-4,-9), (-5,-9), (-6,-9), (-7,-9), |
| 839 | ( 0,-2), ( 1,-2), ( 2,-2), ( 3,-2), ( 4,-2), ( 5,-2), ( 6,-2), ( 7,-2), |
| 840 | (-8,-2), (-1,-2), (-2,-2), (-3,-2), (-4,-2), (-5,-2), (-6,-2), (-7,-2), |
| 841 | ( 0,-3), ( 1,-3), ( 2,-3), ( 3,-3), ( 4,-3), ( 5,-3), ( 6,-3), ( 7,-3), |
| 842 | (-8,-3), (-1,-3), (-2,-3), (-3,-3), (-4,-3), (-5,-3), (-6,-3), (-7,-3), |
| 843 | ( 0,-4), ( 1,-4), ( 2,-4), ( 3,-4), ( 4,-4), ( 5,-4), ( 6,-4), ( 7,-4), |
| 844 | (-8,-4), (-1,-4), (-2,-4), (-3,-4), (-4,-4), (-5,-4), (-6,-4), (-7,-4), |
| 845 | ( 0,-5), ( 1,-5), ( 2,-5), ( 3,-5), ( 4,-5), ( 5,-5), ( 6,-5), ( 7,-5), |
| 846 | (-8,-5), (-1,-5), (-2,-5), (-3,-5), (-4,-5), (-5,-5), (-6,-5), (-7,-5), |
| 847 | ( 0,-6), ( 1,-6), ( 2,-6), ( 3,-6), ( 4,-6), ( 5,-6), ( 6,-6), ( 7,-6), |
| 848 | (-8,-6), (-1,-6), (-2,-6), (-3,-6), (-4,-6), (-5,-6), (-6,-6), (-7,-6), |
| 849 | ( 0,-7), ( 1,-7), ( 2,-7), ( 3,-7), ( 4,-7), ( 5,-7), ( 6,-7), ( 7,-7), |
| 850 | (-8,-7), (-1,-7), (-2,-7), (-3,-7), (-4,-7), (-5,-7), (-6,-7), (-7,-7) |
| 851 | ]; |