Mercurial > vba-linux
diff src/gba/Mode0.cpp @ 1:f9f4f1b99eed
importing src directory
author | Robert McIntyre <rlm@mit.edu> |
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date | Sat, 03 Mar 2012 10:31:27 -0600 |
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children |
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1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/gba/Mode0.cpp Sat Mar 03 10:31:27 2012 -0600 1.3 @@ -0,0 +1,633 @@ 1.4 +#include "GBAGfx.h" 1.5 +#include "GBAGlobals.h" 1.6 + 1.7 +void mode0RenderLine() 1.8 +{ 1.9 + u16 *palette = (u16 *)paletteRAM; 1.10 + 1.11 + if (DISPCNT & 0x80) 1.12 + { 1.13 + for (int x = 0; x < 240; x++) 1.14 + { 1.15 + lineMix[x] = 0x7fff; 1.16 + } 1.17 + return; 1.18 + } 1.19 + 1.20 + if (layerEnable & 0x0100) 1.21 + { 1.22 + gfxDrawTextScreen(BG0CNT, BG0HOFS, BG0VOFS, line0); 1.23 + } 1.24 + 1.25 + if (layerEnable & 0x0200) 1.26 + { 1.27 + gfxDrawTextScreen(BG1CNT, BG1HOFS, BG1VOFS, line1); 1.28 + } 1.29 + 1.30 + if (layerEnable & 0x0400) 1.31 + { 1.32 + gfxDrawTextScreen(BG2CNT, BG2HOFS, BG2VOFS, line2); 1.33 + } 1.34 + 1.35 + if (layerEnable & 0x0800) 1.36 + { 1.37 + gfxDrawTextScreen(BG3CNT, BG3HOFS, BG3VOFS, line3); 1.38 + } 1.39 + 1.40 + gfxDrawSprites(lineOBJ); 1.41 + 1.42 + u32 backdrop = (READ16LE(&palette[0]) | 0x30000000); 1.43 + 1.44 + for (int x = 0; x < 240; x++) 1.45 + { 1.46 + u32 color = backdrop; 1.47 + u8 top = 0x20; 1.48 + 1.49 + if (line0[x] < color) 1.50 + { 1.51 + color = line0[x]; 1.52 + top = 0x01; 1.53 + } 1.54 + 1.55 + if ((u8)(line1[x]>>24) < (u8)(color >> 24)) 1.56 + { 1.57 + color = line1[x]; 1.58 + top = 0x02; 1.59 + } 1.60 + 1.61 + if ((u8)(line2[x]>>24) < (u8)(color >> 24)) 1.62 + { 1.63 + color = line2[x]; 1.64 + top = 0x04; 1.65 + } 1.66 + 1.67 + if ((u8)(line3[x]>>24) < (u8)(color >> 24)) 1.68 + { 1.69 + color = line3[x]; 1.70 + top = 0x08; 1.71 + } 1.72 + 1.73 + if ((u8)(lineOBJ[x]>>24) < (u8)(color >> 24)) 1.74 + { 1.75 + color = lineOBJ[x]; 1.76 + top = 0x10; 1.77 + } 1.78 + 1.79 + if ((top & 0x10) && (color & 0x00010000)) 1.80 + { 1.81 + // semi-transparent OBJ 1.82 + u32 back = backdrop; 1.83 + u8 top2 = 0x20; 1.84 + 1.85 + if ((u8)(line0[x]>>24) < (u8)(back >> 24)) 1.86 + { 1.87 + back = line0[x]; 1.88 + top2 = 0x01; 1.89 + } 1.90 + 1.91 + if ((u8)(line1[x]>>24) < (u8)(back >> 24)) 1.92 + { 1.93 + back = line1[x]; 1.94 + top2 = 0x02; 1.95 + } 1.96 + 1.97 + if ((u8)(line2[x]>>24) < (u8)(back >> 24)) 1.98 + { 1.99 + back = line2[x]; 1.100 + top2 = 0x04; 1.101 + } 1.102 + 1.103 + if ((u8)(line3[x]>>24) < (u8)(back >> 24)) 1.104 + { 1.105 + back = line3[x]; 1.106 + top2 = 0x08; 1.107 + } 1.108 + 1.109 + if (top2 & (BLDMOD>>8)) 1.110 + color = gfxAlphaBlend(color, back, 1.111 + coeff[COLEV & 0x1F], 1.112 + coeff[(COLEV >> 8) & 0x1F]); 1.113 + else 1.114 + { 1.115 + switch ((BLDMOD >> 6) & 3) 1.116 + { 1.117 + case 2: 1.118 + if (BLDMOD & top) 1.119 + color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]); 1.120 + break; 1.121 + case 3: 1.122 + if (BLDMOD & top) 1.123 + color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]); 1.124 + break; 1.125 + } 1.126 + } 1.127 + } 1.128 + 1.129 + lineMix[x] = color; 1.130 + } 1.131 +} 1.132 + 1.133 +void mode0RenderLineNoWindow() 1.134 +{ 1.135 + u16 *palette = (u16 *)paletteRAM; 1.136 + 1.137 + if (DISPCNT & 0x80) 1.138 + { 1.139 + for (int x = 0; x < 240; x++) 1.140 + { 1.141 + lineMix[x] = 0x7fff; 1.142 + } 1.143 + return; 1.144 + } 1.145 + 1.146 + if (layerEnable & 0x0100) 1.147 + { 1.148 + gfxDrawTextScreen(BG0CNT, BG0HOFS, BG0VOFS, line0); 1.149 + } 1.150 + 1.151 + if (layerEnable & 0x0200) 1.152 + { 1.153 + gfxDrawTextScreen(BG1CNT, BG1HOFS, BG1VOFS, line1); 1.154 + } 1.155 + 1.156 + if (layerEnable & 0x0400) 1.157 + { 1.158 + gfxDrawTextScreen(BG2CNT, BG2HOFS, BG2VOFS, line2); 1.159 + } 1.160 + 1.161 + if (layerEnable & 0x0800) 1.162 + { 1.163 + gfxDrawTextScreen(BG3CNT, BG3HOFS, BG3VOFS, line3); 1.164 + } 1.165 + 1.166 + gfxDrawSprites(lineOBJ); 1.167 + 1.168 + u32 backdrop = (READ16LE(&palette[0]) | 0x30000000); 1.169 + 1.170 + int effect = (BLDMOD >> 6) & 3; 1.171 + 1.172 + for (int x = 0; x < 240; x++) 1.173 + { 1.174 + u32 color = backdrop; 1.175 + u8 top = 0x20; 1.176 + 1.177 + if (line0[x] < color) 1.178 + { 1.179 + color = line0[x]; 1.180 + top = 0x01; 1.181 + } 1.182 + 1.183 + if (line1[x] < (color & 0xFF000000)) 1.184 + { 1.185 + color = line1[x]; 1.186 + top = 0x02; 1.187 + } 1.188 + 1.189 + if (line2[x] < (color & 0xFF000000)) 1.190 + { 1.191 + color = line2[x]; 1.192 + top = 0x04; 1.193 + } 1.194 + 1.195 + if (line3[x] < (color & 0xFF000000)) 1.196 + { 1.197 + color = line3[x]; 1.198 + top = 0x08; 1.199 + } 1.200 + 1.201 + if (lineOBJ[x] < (color & 0xFF000000)) 1.202 + { 1.203 + color = lineOBJ[x]; 1.204 + top = 0x10; 1.205 + } 1.206 + 1.207 + if (!(color & 0x00010000)) 1.208 + { 1.209 + switch (effect) 1.210 + { 1.211 + case 0: 1.212 + break; 1.213 + case 1: 1.214 + { 1.215 + if (top & BLDMOD) 1.216 + { 1.217 + u32 back = backdrop; 1.218 + u8 top2 = 0x20; 1.219 + if (line0[x] < back) 1.220 + { 1.221 + if (top != 0x01) 1.222 + { 1.223 + back = line0[x]; 1.224 + top2 = 0x01; 1.225 + } 1.226 + } 1.227 + 1.228 + if (line1[x] < (back & 0xFF000000)) 1.229 + { 1.230 + if (top != 0x02) 1.231 + { 1.232 + back = line1[x]; 1.233 + top2 = 0x02; 1.234 + } 1.235 + } 1.236 + 1.237 + if (line2[x] < (back & 0xFF000000)) 1.238 + { 1.239 + if (top != 0x04) 1.240 + { 1.241 + back = line2[x]; 1.242 + top2 = 0x04; 1.243 + } 1.244 + } 1.245 + 1.246 + if (line3[x] < (back & 0xFF000000)) 1.247 + { 1.248 + if (top != 0x08) 1.249 + { 1.250 + back = line3[x]; 1.251 + top2 = 0x08; 1.252 + } 1.253 + } 1.254 + 1.255 + if (lineOBJ[x] < (back & 0xFF000000)) 1.256 + { 1.257 + if (top != 0x10) 1.258 + { 1.259 + back = lineOBJ[x]; 1.260 + top2 = 0x10; 1.261 + } 1.262 + } 1.263 + 1.264 + if (top2 & (BLDMOD>>8)) 1.265 + color = gfxAlphaBlend(color, back, 1.266 + coeff[COLEV & 0x1F], 1.267 + coeff[(COLEV >> 8) & 0x1F]); 1.268 + } 1.269 + break; 1.270 + } 1.271 + case 2: 1.272 + if (BLDMOD & top) 1.273 + color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]); 1.274 + break; 1.275 + case 3: 1.276 + if (BLDMOD & top) 1.277 + color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]); 1.278 + break; 1.279 + } 1.280 + } 1.281 + else 1.282 + { 1.283 + // semi-transparent OBJ 1.284 + u32 back = backdrop; 1.285 + u8 top2 = 0x20; 1.286 + 1.287 + if (line0[x] < back) 1.288 + { 1.289 + back = line0[x]; 1.290 + top2 = 0x01; 1.291 + } 1.292 + 1.293 + if (line1[x] < (back & 0xFF000000)) 1.294 + { 1.295 + back = line1[x]; 1.296 + top2 = 0x02; 1.297 + } 1.298 + 1.299 + if (line2[x] < (back & 0xFF000000)) 1.300 + { 1.301 + back = line2[x]; 1.302 + top2 = 0x04; 1.303 + } 1.304 + 1.305 + if (line3[x] < (back & 0xFF000000)) 1.306 + { 1.307 + back = line3[x]; 1.308 + top2 = 0x08; 1.309 + } 1.310 + 1.311 + if (top2 & (BLDMOD>>8)) 1.312 + color = gfxAlphaBlend(color, back, 1.313 + coeff[COLEV & 0x1F], 1.314 + coeff[(COLEV >> 8) & 0x1F]); 1.315 + else 1.316 + { 1.317 + switch ((BLDMOD >> 6) & 3) 1.318 + { 1.319 + case 2: 1.320 + if (BLDMOD & top) 1.321 + color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]); 1.322 + break; 1.323 + case 3: 1.324 + if (BLDMOD & top) 1.325 + color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]); 1.326 + break; 1.327 + } 1.328 + } 1.329 + } 1.330 + 1.331 + lineMix[x] = color; 1.332 + } 1.333 +} 1.334 + 1.335 +void mode0RenderLineAll() 1.336 +{ 1.337 + u16 *palette = (u16 *)paletteRAM; 1.338 + 1.339 + if (DISPCNT & 0x80) 1.340 + { 1.341 + for (int x = 0; x < 240; x++) 1.342 + { 1.343 + lineMix[x] = 0x7fff; 1.344 + } 1.345 + return; 1.346 + } 1.347 + 1.348 + bool inWindow0 = false; 1.349 + bool inWindow1 = false; 1.350 + 1.351 + if (layerEnable & 0x2000) 1.352 + { 1.353 + u8 v0 = WIN0V >> 8; 1.354 + u8 v1 = WIN0V & 255; 1.355 + inWindow0 = ((v0 == v1) && (v0 >= 0xe8)); 1.356 + if (v1 >= v0) 1.357 + inWindow0 |= (VCOUNT >= v0 && VCOUNT < v1); 1.358 + else 1.359 + inWindow0 |= (VCOUNT >= v0 || VCOUNT < v1); 1.360 + } 1.361 + if (layerEnable & 0x4000) 1.362 + { 1.363 + u8 v0 = WIN1V >> 8; 1.364 + u8 v1 = WIN1V & 255; 1.365 + inWindow1 = ((v0 == v1) && (v0 >= 0xe8)); 1.366 + if (v1 >= v0) 1.367 + inWindow1 |= (VCOUNT >= v0 && VCOUNT < v1); 1.368 + else 1.369 + inWindow1 |= (VCOUNT >= v0 || VCOUNT < v1); 1.370 + } 1.371 + 1.372 + if ((layerEnable & 0x0100)) 1.373 + { 1.374 + gfxDrawTextScreen(BG0CNT, BG0HOFS, BG0VOFS, line0); 1.375 + } 1.376 + 1.377 + if ((layerEnable & 0x0200)) 1.378 + { 1.379 + gfxDrawTextScreen(BG1CNT, BG1HOFS, BG1VOFS, line1); 1.380 + } 1.381 + 1.382 + if ((layerEnable & 0x0400)) 1.383 + { 1.384 + gfxDrawTextScreen(BG2CNT, BG2HOFS, BG2VOFS, line2); 1.385 + } 1.386 + 1.387 + if ((layerEnable & 0x0800)) 1.388 + { 1.389 + gfxDrawTextScreen(BG3CNT, BG3HOFS, BG3VOFS, line3); 1.390 + } 1.391 + 1.392 + gfxDrawSprites(lineOBJ); 1.393 + gfxDrawOBJWin(lineOBJWin); 1.394 + 1.395 + u32 backdrop = (READ16LE(&palette[0]) | 0x30000000); 1.396 + 1.397 + u8 inWin0Mask = WININ & 0xFF; 1.398 + u8 inWin1Mask = WININ >> 8; 1.399 + u8 outMask = WINOUT & 0xFF; 1.400 + 1.401 + for (int x = 0; x < 240; x++) 1.402 + { 1.403 + u32 color = backdrop; 1.404 + u8 top = 0x20; 1.405 + u8 mask = outMask; 1.406 + 1.407 + if (!(lineOBJWin[x] & 0x80000000)) 1.408 + { 1.409 + mask = WINOUT >> 8; 1.410 + } 1.411 + 1.412 + if (inWindow1) 1.413 + { 1.414 + if (gfxInWin1[x]) 1.415 + mask = inWin1Mask; 1.416 + } 1.417 + 1.418 + if (inWindow0) 1.419 + { 1.420 + if (gfxInWin0[x]) 1.421 + { 1.422 + mask = inWin0Mask; 1.423 + } 1.424 + } 1.425 + 1.426 + if ((mask & 1) && (line0[x] < color)) 1.427 + { 1.428 + color = line0[x]; 1.429 + top = 0x01; 1.430 + } 1.431 + 1.432 + if ((mask & 2) && ((u8)(line1[x]>>24) < (u8)(color >> 24))) 1.433 + { 1.434 + color = line1[x]; 1.435 + top = 0x02; 1.436 + } 1.437 + 1.438 + if ((mask & 4) && ((u8)(line2[x]>>24) < (u8)(color >> 24))) 1.439 + { 1.440 + color = line2[x]; 1.441 + top = 0x04; 1.442 + } 1.443 + 1.444 + if ((mask & 8) && ((u8)(line3[x]>>24) < (u8)(color >> 24))) 1.445 + { 1.446 + color = line3[x]; 1.447 + top = 0x08; 1.448 + } 1.449 + 1.450 + if ((mask & 16) && ((u8)(lineOBJ[x]>>24) < (u8)(color >> 24))) 1.451 + { 1.452 + color = lineOBJ[x]; 1.453 + top = 0x10; 1.454 + } 1.455 + 1.456 + // special FX on in the window 1.457 + if (mask & 32) 1.458 + { 1.459 + if (!(color & 0x00010000)) 1.460 + { 1.461 + switch ((BLDMOD >> 6) & 3) 1.462 + { 1.463 + case 0: 1.464 + break; 1.465 + case 1: 1.466 + { 1.467 + if (top & BLDMOD) 1.468 + { 1.469 + u32 back = backdrop; 1.470 + u8 top2 = 0x20; 1.471 + if ((mask & 1) && (u8)(line0[x]>>24) < (u8)(back >> 24)) 1.472 + { 1.473 + if (top != 0x01) 1.474 + { 1.475 + back = line0[x]; 1.476 + top2 = 0x01; 1.477 + } 1.478 + } 1.479 + 1.480 + if ((mask & 2) && (u8)(line1[x]>>24) < (u8)(back >> 24)) 1.481 + { 1.482 + if (top != 0x02) 1.483 + { 1.484 + back = line1[x]; 1.485 + top2 = 0x02; 1.486 + } 1.487 + } 1.488 + 1.489 + if ((mask & 4) && (u8)(line2[x]>>24) < (u8)(back >> 24)) 1.490 + { 1.491 + if (top != 0x04) 1.492 + { 1.493 + back = line2[x]; 1.494 + top2 = 0x04; 1.495 + } 1.496 + } 1.497 + 1.498 + if ((mask & 8) && (u8)(line3[x]>>24) < (u8)(back >> 24)) 1.499 + { 1.500 + if (top != 0x08) 1.501 + { 1.502 + back = line3[x]; 1.503 + top2 = 0x08; 1.504 + } 1.505 + } 1.506 + 1.507 + if ((mask & 16) && (u8)(lineOBJ[x]>>24) < (u8)(back >> 24)) 1.508 + { 1.509 + if (top != 0x10) 1.510 + { 1.511 + back = lineOBJ[x]; 1.512 + top2 = 0x10; 1.513 + } 1.514 + } 1.515 + 1.516 + if (top2 & (BLDMOD>>8)) 1.517 + color = gfxAlphaBlend(color, back, 1.518 + coeff[COLEV & 0x1F], 1.519 + coeff[(COLEV >> 8) & 0x1F]); 1.520 + } 1.521 + break; 1.522 + } 1.523 + case 2: 1.524 + if (BLDMOD & top) 1.525 + color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]); 1.526 + break; 1.527 + case 3: 1.528 + if (BLDMOD & top) 1.529 + color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]); 1.530 + break; 1.531 + } 1.532 + } 1.533 + else 1.534 + { 1.535 + // semi-transparent OBJ 1.536 + u32 back = backdrop; 1.537 + u8 top2 = 0x20; 1.538 + 1.539 + if ((mask & 1) && ((u8)(line0[x]>>24) < (u8)(back >> 24))) 1.540 + { 1.541 + back = line0[x]; 1.542 + top2 = 0x01; 1.543 + } 1.544 + 1.545 + if ((mask & 2) && ((u8)(line1[x]>>24) < (u8)(back >> 24))) 1.546 + { 1.547 + back = line1[x]; 1.548 + top2 = 0x02; 1.549 + } 1.550 + 1.551 + if ((mask & 4) && ((u8)(line2[x]>>24) < (u8)(back >> 24))) 1.552 + { 1.553 + back = line2[x]; 1.554 + top2 = 0x04; 1.555 + } 1.556 + 1.557 + if ((mask & 8) && ((u8)(line3[x]>>24) < (u8)(back >> 24))) 1.558 + { 1.559 + back = line3[x]; 1.560 + top2 = 0x08; 1.561 + } 1.562 + 1.563 + if (top2 & (BLDMOD>>8)) 1.564 + color = gfxAlphaBlend(color, back, 1.565 + coeff[COLEV & 0x1F], 1.566 + coeff[(COLEV >> 8) & 0x1F]); 1.567 + else 1.568 + { 1.569 + switch ((BLDMOD >> 6) & 3) 1.570 + { 1.571 + case 2: 1.572 + if (BLDMOD & top) 1.573 + color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]); 1.574 + break; 1.575 + case 3: 1.576 + if (BLDMOD & top) 1.577 + color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]); 1.578 + break; 1.579 + } 1.580 + } 1.581 + } 1.582 + } 1.583 + else if (color & 0x00010000) 1.584 + { 1.585 + // semi-transparent OBJ 1.586 + u32 back = backdrop; 1.587 + u8 top2 = 0x20; 1.588 + 1.589 + if ((mask & 1) && ((u8)(line0[x]>>24) < (u8)(back >> 24))) 1.590 + { 1.591 + back = line0[x]; 1.592 + top2 = 0x01; 1.593 + } 1.594 + 1.595 + if ((mask & 2) && ((u8)(line1[x]>>24) < (u8)(back >> 24))) 1.596 + { 1.597 + back = line1[x]; 1.598 + top2 = 0x02; 1.599 + } 1.600 + 1.601 + if ((mask & 4) && ((u8)(line2[x]>>24) < (u8)(back >> 24))) 1.602 + { 1.603 + back = line2[x]; 1.604 + top2 = 0x04; 1.605 + } 1.606 + 1.607 + if ((mask & 8) && ((u8)(line3[x]>>24) < (u8)(back >> 24))) 1.608 + { 1.609 + back = line3[x]; 1.610 + top2 = 0x08; 1.611 + } 1.612 + 1.613 + if (top2 & (BLDMOD>>8)) 1.614 + color = gfxAlphaBlend(color, back, 1.615 + coeff[COLEV & 0x1F], 1.616 + coeff[(COLEV >> 8) & 0x1F]); 1.617 + else 1.618 + { 1.619 + switch ((BLDMOD >> 6) & 3) 1.620 + { 1.621 + case 2: 1.622 + if (BLDMOD & top) 1.623 + color = gfxIncreaseBrightness(color, coeff[COLY & 0x1F]); 1.624 + break; 1.625 + case 3: 1.626 + if (BLDMOD & top) 1.627 + color = gfxDecreaseBrightness(color, coeff[COLY & 0x1F]); 1.628 + break; 1.629 + } 1.630 + } 1.631 + } 1.632 + 1.633 + lineMix[x] = color; 1.634 + } 1.635 +} 1.636 +