Mercurial > vba-clojure

     1 #ifndef VBA_GBA_GFX_H

     2 #define VBA_GBA_GFX_H

     3 

     4 #if _MSC_VER > 1000

     5 #pragma once

     6 #endif // _MSC_VER > 1000

     7 

     8 #include "../Port.h"

     9 #include "GBA.h"

    10 #include "GBAGlobals.h"

    11 

    12 //#define SPRITE_DEBUG

    13 

    14 void gfxDrawTextScreen(u16, u16, u16, u32 *);

    15 void gfxDrawRotScreen(u16,

    16                       u16, u16,

    17                       u16, u16,

    18                       u16, u16,

    19                       u16, u16,

    20                       int&, int&,

    21                       int,

    22                       u32 *);

    23 void gfxDrawRotScreen16Bit(u16,

    24                            u16, u16,

    25                            u16, u16,

    26                            u16, u16,

    27                            u16, u16,

    28                            int&, int&,

    29                            int,

    30                            u32 *);

    31 void gfxDrawRotScreen256(u16,

    32                          u16, u16,

    33                          u16, u16,

    34                          u16, u16,

    35                          u16, u16,

    36                          int&, int&,

    37                          int,

    38                          u32 *);

    39 void gfxDrawRotScreen16Bit160(u16,

    40                               u16, u16,

    41                               u16, u16,

    42                               u16, u16,

    43                               u16, u16,

    44                               int&, int&,

    45                               int,

    46                               u32 *);

    47 void gfxDrawSprites(u32 *);

    48 void gfxIncreaseBrightness(u32 *line, int coeff);

    49 void gfxDecreaseBrightness(u32 *line, int coeff);

    50 void gfxAlphaBlend(u32 *ta, u32 *tb, int ca, int cb);

    51 

    52 void mode0RenderLine();

    53 void mode0RenderLineNoWindow();

    54 void mode0RenderLineAll();

    55 

    56 void mode1RenderLine();

    57 void mode1RenderLineNoWindow();

    58 void mode1RenderLineAll();

    59 

    60 void mode2RenderLine();

    61 void mode2RenderLineNoWindow();

    62 void mode2RenderLineAll();

    63 

    64 void mode3RenderLine();

    65 void mode3RenderLineNoWindow();

    66 void mode3RenderLineAll();

    67 

    68 void mode4RenderLine();

    69 void mode4RenderLineNoWindow();

    70 void mode4RenderLineAll();

    71 

    72 void mode5RenderLine();

    73 void mode5RenderLineNoWindow();

    74 void mode5RenderLineAll();

    75 

    76 extern int  coeff[32];

    77 

    78 #define LINE_BUFFER_OVERFLOW_LEEWAY (512-240)

    79 

    80 extern u32  line0[240+LINE_BUFFER_OVERFLOW_LEEWAY];

    81 extern u32  line1[240+LINE_BUFFER_OVERFLOW_LEEWAY];

    82 extern u32  line2[240+LINE_BUFFER_OVERFLOW_LEEWAY];

    83 extern u32  line3[240+LINE_BUFFER_OVERFLOW_LEEWAY];

    84 extern u32  lineOBJ[240+LINE_BUFFER_OVERFLOW_LEEWAY];

    85 extern u32  lineOBJWin[240+LINE_BUFFER_OVERFLOW_LEEWAY];

    86 extern u32  lineMix[240+LINE_BUFFER_OVERFLOW_LEEWAY];

    87 extern bool gfxInWin0[240+LINE_BUFFER_OVERFLOW_LEEWAY];

    88 extern bool gfxInWin1[240+LINE_BUFFER_OVERFLOW_LEEWAY];

    89 

    90 extern int gfxBG2Changed;

    91 extern int gfxBG3Changed;

    92 

    93 extern int gfxBG2X;

    94 extern int gfxBG2Y;

    95 extern int gfxBG2LastX;

    96 extern int gfxBG2LastY;

    97 extern int gfxBG3X;

    98 extern int gfxBG3Y;

    99 extern int gfxBG3LastX;

   100 extern int gfxBG3LastY;

   101 extern int gfxLastVCOUNT;

   102 

   103 inline void gfxClearArray(u32 *array)

   104 {

   105 	for (int i = 0; i < 240; i++)

   106 	{

   107 		*array++ = 0x80000000;

   108 	}

   109 }

   110 

   111 inline void gfxDrawTextScreen(u16 control, u16 hofs, u16 vofs,

   112                               u32 *line)

   113 {

   114 	u16 *palette    = (u16 *)paletteRAM;

   115 	u8 * charBase   = &vram[((control >> 2) & 0x03) * 0x4000];

   116 	u16 *screenBase = (u16 *)&vram[((control >> 8) & 0x1f) * 0x800];

   117 	u32  prio       = ((control & 3)<<25) + 0x1000000;

   118 	int  sizeX      = 256;

   119 	int  sizeY      = 256;

   120 	switch ((control >> 14) & 3)

   121 	{

   122 	case 0:

   123 		break;

   124 	case 1:

   125 		sizeX = 512;

   126 		break;

   127 	case 2:

   128 		sizeY = 512;

   129 		break;

   130 	case 3:

   131 		sizeX = 512;

   132 		sizeY = 512;

   133 		break;

   134 	}

   135 

   136 	int maskX = sizeX-1;

   137 	int maskY = sizeY-1;

   138 

   139 	bool mosaicOn = (control & 0x40) ? true : false;

   140 

   141 	int xxx     = hofs & maskX;

   142 	int yyy     = (vofs + VCOUNT) & maskY;

   143 	int mosaicX = (MOSAIC & 0x000F)+1;

   144 	int mosaicY = ((MOSAIC & 0x00F0)>>4)+1;

   145 

   146 	if (mosaicOn)

   147 	{

   148 		if ((VCOUNT % mosaicY) != 0)

   149 		{

   150 			mosaicY = (VCOUNT / mosaicY) * mosaicY;

   151 			yyy     = (vofs + mosaicY) & maskY;

   152 		}

   153 	}

   154 

   155 	if (yyy > 255 && sizeY > 256)

   156 	{

   157 		yyy        &= 255;

   158 		screenBase += 0x400;

   159 		if (sizeX > 256)

   160 			screenBase += 0x400;

   161 	}

   162 

   163 	int yshift = ((yyy>>3)<<5);

   164 	if ((control) & 0x80)

   165 	{

   166 		u16 *screenSource = screenBase + 0x400 * (xxx>>8) + ((xxx & 255)>>3) + yshift;

   167 		for (int x = 0; x < 240; x++)

   168 		{

   169 			u16 data = READ16LE(screenSource);

   170 

   171 			int tile  = data & 0x3FF;

   172 			int tileX = (xxx & 7);

   173 			int tileY = yyy & 7;

   174 

   175 			if (data & 0x0400)

   176 				tileX = 7 - tileX;

   177 			if (data & 0x0800)

   178 				tileY = 7 - tileY;

   179 

   180 			u8 color = charBase[tile * 64 + tileY * 8 + tileX];

   181 

   182 			line[x] = color ? (READ16LE(&palette[color]) | prio) : 0x80000000;

   183 

   184 			if (data & 0x0400)

   185 			{

   186 				if (tileX == 0)

   187 					screenSource++;

   188 			}

   189 			else if (tileX == 7)

   190 				screenSource++;

   191 			xxx++;

   192 			if (xxx == 256)

   193 			{

   194 				if (sizeX > 256)

   195 					screenSource = screenBase + 0x400 + yshift;

   196 				else

   197 				{

   198 					screenSource = screenBase + yshift;

   199 					xxx = 0;

   200 				}

   201 			}

   202 			else if (xxx >= sizeX)

   203 			{

   204 				xxx = 0;

   205 				screenSource = screenBase + yshift;

   206 			}

   207 		}

   208 	}

   209 	else

   210 	{

   211 		u16 *screenSource = screenBase + 0x400*(xxx>>8)+((xxx&255)>>3) +

   212 		                    yshift;

   213 		for (int x = 0; x < 240; x++)

   214 		{

   215 			u16 data = READ16LE(screenSource);

   216 

   217 			int tile  = data & 0x3FF;

   218 			int tileX = (xxx & 7);

   219 			int tileY = yyy & 7;

   220 

   221 			if (data & 0x0400)

   222 				tileX = 7 - tileX;

   223 			if (data & 0x0800)

   224 				tileY = 7 - tileY;

   225 

   226 			u8 color = charBase[(tile<<5) + (tileY<<2) + (tileX>>1)];

   227 

   228 			if (tileX & 1)

   229 			{

   230 				color = (color >> 4);

   231 			}

   232 			else

   233 			{

   234 				color &= 0x0F;

   235 			}

   236 

   237 			int pal = (READ16LE(screenSource)>>8) & 0xF0;

   238 			line[x] = color ? (READ16LE(&palette[pal + color])|prio) : 0x80000000;

   239 

   240 			if (data & 0x0400)

   241 			{

   242 				if (tileX == 0)

   243 					screenSource++;

   244 			}

   245 			else if (tileX == 7)

   246 				screenSource++;

   247 			xxx++;

   248 			if (xxx == 256)

   249 			{

   250 				if (sizeX > 256)

   251 					screenSource = screenBase + 0x400 + yshift;

   252 				else

   253 				{

   254 					screenSource = screenBase + yshift;

   255 					xxx = 0;

   256 				}

   257 			}

   258 			else if (xxx >= sizeX)

   259 			{

   260 				xxx = 0;

   261 				screenSource = screenBase + yshift;

   262 			}

   263 		}

   264 	}

   265 	if (mosaicOn)

   266 	{

   267 		if (mosaicX > 1)

   268 		{

   269 			int m = 1;

   270 			for (int i = 0; i < 239; i++)

   271 			{

   272 				line[i+1] = line[i];

   273 				m++;

   274 				if (m == mosaicX)

   275 				{

   276 					m = 1;

   277 					i++;

   278 				}

   279 			}

   280 		}

   281 	}

   282 }

   283 

   284 inline void gfxDrawRotScreen(u16 control,

   285                              u16 x_l, u16 x_h,

   286                              u16 y_l, u16 y_h,

   287                              u16 pa,  u16 pb,

   288                              u16 pc,  u16 pd,

   289                              int& currentX, int& currentY,

   290                              int changed,

   291                              u32 *line)

   292 {

   293 	u16 *palette    = (u16 *)paletteRAM;

   294 	u8 * charBase   = &vram[((control >> 2) & 0x03) * 0x4000];

   295 	u8 * screenBase = (u8 *)&vram[((control >> 8) & 0x1f) * 0x800];

   296 	int  prio       = ((control & 3) << 25) + 0x1000000;

   297 

   298 	int sizeX = 128;

   299 	int sizeY = 128;

   300 	switch ((control >> 14) & 3)

   301 	{

   302 	case 0:

   303 		break;

   304 	case 1:

   305 		sizeX = sizeY = 256;

   306 		break;

   307 	case 2:

   308 		sizeX = sizeY = 512;

   309 		break;

   310 	case 3:

   311 		sizeX = sizeY = 1024;

   312 		break;

   313 	}

   314 

   315 	int dx = pa & 0x7FFF;

   316 	if (pa & 0x8000)

   317 		dx |= 0xFFFF8000;

   318 	int dmx = pb & 0x7FFF;

   319 	if (pb & 0x8000)

   320 		dmx |= 0xFFFF8000;

   321 	int dy = pc & 0x7FFF;

   322 	if (pc & 0x8000)

   323 		dy |= 0xFFFF8000;

   324 	int dmy = pd & 0x7FFFF;

   325 	if (pd & 0x8000)

   326 		dmy |= 0xFFFF8000;

   327 

   328 	if (VCOUNT == 0)

   329 		changed = 3;

   330 

   331 	if (changed & 1)

   332 	{

   333 		currentX = (x_l) | ((x_h & 0x07FF)<<16);

   334 		if (x_h & 0x0800)

   335 			currentX |= 0xF8000000;

   336 	}

   337 	else

   338 	{

   339 		currentX += dmx;

   340 	}

   341 

   342 	if (changed & 2)

   343 	{

   344 		currentY = (y_l) | ((y_h & 0x07FF)<<16);

   345 		if (y_h & 0x0800)

   346 			currentY |= 0xF8000000;

   347 	}

   348 	else

   349 	{

   350 		currentY += dmy;

   351 	}

   352 

   353 	int realX = currentX;

   354 	int realY = currentY;

   355 

   356 	if (control & 0x40)

   357 	{

   358 		int mosaicY = ((MOSAIC & 0xF0)>>4) + 1;

   359 		int y       = (VCOUNT % mosaicY);

   360 		realX -= y*dmx;

   361 		realY -= y*dmy;

   362 	}

   363 

   364 	int xxx = (realX >> 8);

   365 	int yyy = (realY >> 8);

   366 

   367 	if (control & 0x2000)

   368 	{

   369 		xxx %= sizeX;

   370 		yyy %= sizeY;

   371 		if (xxx < 0)

   372 			xxx += sizeX;

   373 		if (yyy < 0)

   374 			yyy += sizeY;

   375 	}

   376 

   377 	if (control & 0x80)

   378 	{

   379 		for (int x = 0; x < 240; x++)

   380 		{

   381 			if (xxx < 0 ||

   382 			    yyy < 0 ||

   383 			    xxx >= sizeX ||

   384 			    yyy >= sizeY)

   385 			{

   386 				line[x] = 0x80000000;

   387 			}

   388 			else

   389 			{

   390 				int tile = screenBase[(xxx>>3) + (yyy>>3)*(sizeX>>3)];

   391 

   392 				int tileX = (xxx & 7);

   393 				int tileY = yyy & 7;

   394 

   395 				u8 color = charBase[(tile<<6) + (tileY<<3) + tileX];

   396 

   397 				line[x] = color ? (READ16LE(&palette[color])|prio) : 0x80000000;

   398 			}

   399 			realX += dx;

   400 			realY += dy;

   401 

   402 			xxx = (realX >> 8);

   403 			yyy = (realY >> 8);

   404 

   405 			if (control & 0x2000)

   406 			{

   407 				xxx %= sizeX;

   408 				yyy %= sizeY;

   409 				if (xxx < 0)

   410 					xxx += sizeX;

   411 				if (yyy < 0)

   412 					yyy += sizeY;

   413 			}

   414 		}

   415 	}

   416 	else

   417 	{

   418 		for (int x = 0; x < 240; x++)

   419 		{

   420 			if (xxx < 0 ||

   421 			    yyy < 0 ||

   422 			    xxx >= sizeX ||

   423 			    yyy >= sizeY)

   424 			{

   425 				line[x] = 0x80000000;

   426 			}

   427 			else

   428 			{

   429 				int tile = screenBase[(xxx>>3) + (yyy>>3)*(sizeX>>3)];

   430 

   431 				int tileX = (xxx & 7);

   432 				int tileY = yyy & 7;

   433 

   434 				u8 color = charBase[(tile<<6) + (tileY<<3) + tileX];

   435 

   436 				line[x] = color ? (READ16LE(&palette[color])|prio) : 0x80000000;

   437 			}

   438 			realX += dx;

   439 			realY += dy;

   440 

   441 			xxx = (realX >> 8);

   442 			yyy = (realY >> 8);

   443 

   444 			if (control & 0x2000)

   445 			{

   446 				xxx %= sizeX;

   447 				yyy %= sizeY;

   448 				if (xxx < 0)

   449 					xxx += sizeX;

   450 				if (yyy < 0)

   451 					yyy += sizeY;

   452 			}

   453 		}

   454 	}

   455 

   456 	if (control & 0x40)

   457 	{

   458 		int mosaicX = (MOSAIC & 0xF) + 1;

   459 		if (mosaicX > 1)

   460 		{

   461 			int m = 1;

   462 			for (int i = 0; i < 239; i++)

   463 			{

   464 				line[i+1] = line[i];

   465 				m++;

   466 				if (m == mosaicX)

   467 				{

   468 					m = 1;

   469 					i++;

   470 				}

   471 			}

   472 		}

   473 	}

   474 }

   475 

   476 inline void gfxDrawRotScreen16Bit(u16 control,

   477                                   u16 x_l, u16 x_h,

   478                                   u16 y_l, u16 y_h,

   479                                   u16 pa,  u16 pb,

   480                                   u16 pc,  u16 pd,

   481                                   int& currentX, int& currentY,

   482                                   int changed,

   483                                   u32 *line)

   484 {

   485 	u16 *screenBase = (u16 *)&vram[0];

   486 	int  prio       = ((control & 3) << 25) + 0x1000000;

   487 	int  sizeX      = 240;

   488 	int  sizeY      = 160;

   489 

   490 	int startX = (x_l) | ((x_h & 0x07FF)<<16);

   491 	if (x_h & 0x0800)

   492 		startX |= 0xF8000000;

   493 	int startY = (y_l) | ((y_h & 0x07FF)<<16);

   494 	if (y_h & 0x0800)

   495 		startY |= 0xF8000000;

   496 

   497 	int dx = pa & 0x7FFF;

   498 	if (pa & 0x8000)

   499 		dx |= 0xFFFF8000;

   500 	int dmx = pb & 0x7FFF;

   501 	if (pb & 0x8000)

   502 		dmx |= 0xFFFF8000;

   503 	int dy = pc & 0x7FFF;

   504 	if (pc & 0x8000)

   505 		dy |= 0xFFFF8000;

   506 	int dmy = pd & 0x7FFFF;

   507 	if (pd & 0x8000)

   508 		dmy |= 0xFFFF8000;

   509 

   510 	if (VCOUNT == 0)

   511 		changed = 3;

   512 

   513 	if (changed & 1)

   514 	{

   515 		currentX = (x_l) | ((x_h & 0x07FF)<<16);

   516 		if (x_h & 0x0800)

   517 			currentX |= 0xF8000000;

   518 	}

   519 	else

   520 		currentX += dmx;

   521 

   522 	if (changed & 2)

   523 	{

   524 		currentY = (y_l) | ((y_h & 0x07FF)<<16);

   525 		if (y_h & 0x0800)

   526 			currentY |= 0xF8000000;

   527 	}

   528 	else

   529 	{

   530 		currentY += dmy;

   531 	}

   532 

   533 	int realX = currentX;

   534 	int realY = currentY;

   535 

   536 	if (control & 0x40)

   537 	{

   538 		int mosaicY = ((MOSAIC & 0xF0)>>4) + 1;

   539 		int y       = (VCOUNT % mosaicY);

   540 		realX -= y*dmx;

   541 		realY -= y*dmy;

   542 	}

   543 

   544 	int xxx = (realX >> 8);

   545 	int yyy = (realY >> 8);

   546 

   547 	for (int x = 0; x < 240; x++)

   548 	{

   549 		if (xxx < 0 ||

   550 		    yyy < 0 ||

   551 		    xxx >= sizeX ||

   552 		    yyy >= sizeY)

   553 		{

   554 			line[x] = 0x80000000;

   555 		}

   556 		else

   557 		{

   558 			line[x] = (READ16LE(&screenBase[yyy * sizeX + xxx]) | prio);

   559 		}

   560 		realX += dx;

   561 		realY += dy;

   562 

   563 		xxx = (realX >> 8);

   564 		yyy = (realY >> 8);

   565 	}

   566 

   567 	if (control & 0x40)

   568 	{

   569 		int mosaicX = (MOSAIC & 0xF) + 1;

   570 		if (mosaicX > 1)

   571 		{

   572 			int m = 1;

   573 			for (int i = 0; i < 239; i++)

   574 			{

   575 				line[i+1] = line[i];

   576 				m++;

   577 				if (m == mosaicX)

   578 				{

   579 					m = 1;

   580 					i++;

   581 				}

   582 			}

   583 		}

   584 	}

   585 }

   586 

   587 inline void gfxDrawRotScreen256(u16 control,

   588                                 u16 x_l, u16 x_h,

   589                                 u16 y_l, u16 y_h,

   590                                 u16 pa,  u16 pb,

   591                                 u16 pc,  u16 pd,

   592                                 int &currentX, int& currentY,

   593                                 int changed,

   594                                 u32 *line)

   595 {

   596 	u16 *palette    = (u16 *)paletteRAM;

   597 	u8 * screenBase = (DISPCNT & 0x0010) ? &vram[0xA000] : &vram[0x0000];

   598 	int  prio       = ((control & 3) << 25) + 0x1000000;

   599 	int  sizeX      = 240;

   600 	int  sizeY      = 160;

   601 

   602 	int startX = (x_l) | ((x_h & 0x07FF)<<16);

   603 	if (x_h & 0x0800)

   604 		startX |= 0xF8000000;

   605 	int startY = (y_l) | ((y_h & 0x07FF)<<16);

   606 	if (y_h & 0x0800)

   607 		startY |= 0xF8000000;

   608 

   609 	int dx = pa & 0x7FFF;

   610 	if (pa & 0x8000)

   611 		dx |= 0xFFFF8000;

   612 	int dmx = pb & 0x7FFF;

   613 	if (pb & 0x8000)

   614 		dmx |= 0xFFFF8000;

   615 	int dy = pc & 0x7FFF;

   616 	if (pc & 0x8000)

   617 		dy |= 0xFFFF8000;

   618 	int dmy = pd & 0x7FFFF;

   619 	if (pd & 0x8000)

   620 		dmy |= 0xFFFF8000;

   621 

   622 	if (VCOUNT == 0)

   623 		changed = 3;

   624 

   625 	if (changed & 1)

   626 	{

   627 		currentX = (x_l) | ((x_h & 0x07FF)<<16);

   628 		if (x_h & 0x0800)

   629 			currentX |= 0xF8000000;

   630 	}

   631 	else

   632 	{

   633 		currentX += dmx;

   634 	}

   635 

   636 	if (changed & 2)

   637 	{

   638 		currentY = (y_l) | ((y_h & 0x07FF)<<16);

   639 		if (y_h & 0x0800)

   640 			currentY |= 0xF8000000;

   641 	}

   642 	else

   643 	{

   644 		currentY += dmy;

   645 	}

   646 

   647 	int realX = currentX;

   648 	int realY = currentY;

   649 

   650 	if (control & 0x40)

   651 	{

   652 		int mosaicY = ((MOSAIC & 0xF0)>>4) + 1;

   653 		int y       = (VCOUNT / mosaicY) * mosaicY;

   654 		realX = startX + y*dmx;

   655 		realY = startY + y*dmy;

   656 	}

   657 

   658 	int xxx = (realX >> 8);

   659 	int yyy = (realY >> 8);

   660 

   661 	for (int x = 0; x < 240; x++)

   662 	{

   663 		if (xxx < 0 ||

   664 		    yyy < 0 ||

   665 		    xxx >= sizeX ||

   666 		    yyy >= sizeY)

   667 		{

   668 			line[x] = 0x80000000;

   669 		}

   670 		else

   671 		{

   672 			u8 color = screenBase[yyy * 240 + xxx];

   673 

   674 			line[x] = color ? (READ16LE(&palette[color])|prio) : 0x80000000;

   675 		}

   676 		realX += dx;

   677 		realY += dy;

   678 

   679 		xxx = (realX >> 8);

   680 		yyy = (realY >> 8);

   681 	}

   682 

   683 	if (control & 0x40)

   684 	{

   685 		int mosaicX = (MOSAIC & 0xF) + 1;

   686 		if (mosaicX > 1)

   687 		{

   688 			int m = 1;

   689 			for (int i = 0; i < 239; i++)

   690 			{

   691 				line[i+1] = line[i];

   692 				m++;

   693 				if (m == mosaicX)

   694 				{

   695 					m = 1;

   696 					i++;

   697 				}

   698 			}

   699 		}

   700 	}

   701 }

   702 

   703 inline void gfxDrawRotScreen16Bit160(u16 control,

   704                                      u16 x_l, u16 x_h,

   705                                      u16 y_l, u16 y_h,

   706                                      u16 pa,  u16 pb,

   707                                      u16 pc,  u16 pd,

   708                                      int& currentX, int& currentY,

   709                                      int changed,

   710                                      u32 *line)

   711 {

   712 	u16 *screenBase = (DISPCNT & 0x0010) ? (u16 *)&vram[0xa000] :

   713 	                  (u16 *)&vram[0];

   714 	int prio  = ((control & 3) << 25) + 0x1000000;

   715 	int sizeX = 160;

   716 	int sizeY = 128;

   717 

   718 	int startX = (x_l) | ((x_h & 0x07FF)<<16);

   719 	if (x_h & 0x0800)

   720 		startX |= 0xF8000000;

   721 	int startY = (y_l) | ((y_h & 0x07FF)<<16);

   722 	if (y_h & 0x0800)

   723 		startY |= 0xF8000000;

   724 

   725 	int dx = pa & 0x7FFF;

   726 	if (pa & 0x8000)

   727 		dx |= 0xFFFF8000;

   728 	int dmx = pb & 0x7FFF;

   729 	if (pb & 0x8000)

   730 		dmx |= 0xFFFF8000;

   731 	int dy = pc & 0x7FFF;

   732 	if (pc & 0x8000)

   733 		dy |= 0xFFFF8000;

   734 	int dmy = pd & 0x7FFFF;

   735 	if (pd & 0x8000)

   736 		dmy |= 0xFFFF8000;

   737 

   738 	if (VCOUNT == 0)

   739 		changed = 3;

   740 

   741 	if (changed & 1)

   742 	{

   743 		currentX = (x_l) | ((x_h & 0x07FF)<<16);

   744 		if (x_h & 0x0800)

   745 			currentX |= 0xF8000000;

   746 	}

   747 	else

   748 	{

   749 		currentX += dmx;

   750 	}

   751 

   752 	if (changed & 2)

   753 	{

   754 		currentY = (y_l) | ((y_h & 0x07FF)<<16);

   755 		if (y_h & 0x0800)

   756 			currentY |= 0xF8000000;

   757 	}

   758 	else

   759 	{

   760 		currentY += dmy;

   761 	}

   762 

   763 	int realX = currentX;

   764 	int realY = currentY;

   765 

   766 	if (control & 0x40)

   767 	{

   768 		int mosaicY = ((MOSAIC & 0xF0)>>4) + 1;

   769 		int y       = (VCOUNT / mosaicY) * mosaicY;

   770 		realX = startX + y*dmx;

   771 		realY = startY + y*dmy;

   772 	}

   773 

   774 	int xxx = (realX >> 8);

   775 	int yyy = (realY >> 8);

   776 

   777 	for (int x = 0; x < 240; x++)

   778 	{

   779 		if (xxx < 0 ||

   780 		    yyy < 0 ||

   781 		    xxx >= sizeX ||

   782 		    yyy >= sizeY)

   783 		{

   784 			line[x] = 0x80000000;

   785 		}

   786 		else

   787 		{

   788 			line[x] = (READ16LE(&screenBase[yyy * sizeX + xxx]) | prio);

   789 		}

   790 		realX += dx;

   791 		realY += dy;

   792 

   793 		xxx = (realX >> 8);

   794 		yyy = (realY >> 8);

   795 	}

   796 

   797 	if (control & 0x40)

   798 	{

   799 		int mosaicX = (MOSAIC & 0xF) + 1;

   800 		if (mosaicX > 1)

   801 		{

   802 			int m = 1;

   803 			for (int i = 0; i < 239; i++)

   804 			{

   805 				line[i+1] = line[i];

   806 				m++;

   807 				if (m == mosaicX)

   808 				{

   809 					m = 1;

   810 					i++;

   811 				}

   812 			}

   813 		}

   814 	}

   815 }

   816 

   817 inline void gfxDrawSprites(u32 *lineOBJ)

   818 {

   819 	int m = 0;

   820 	gfxClearArray(lineOBJ);

   821 	if (layerEnable & 0x1000)

   822 	{

   823 		u16 *sprites       = (u16 *)oam;

   824 		u16 *spritePalette = &((u16 *)paletteRAM)[256];

   825 		int  mosaicY       = ((MOSAIC & 0xF000)>>12) + 1;

   826 		int  mosaicX       = ((MOSAIC & 0xF00)>>8) + 1;

   827 		for (int x = 0; x < 128; x++)

   828 		{

   829 			u16 a0 = READ16LE(sprites++);

   830 			u16 a1 = READ16LE(sprites++);

   831 			u16 a2 = READ16LE(sprites++);

   832 			sprites++;

   833 

   834 			// ignore OBJ-WIN

   835 			if ((a0 & 0x0c00) == 0x0800)

   836 				continue;

   837 

   838 			int sizeY = 8;

   839 			int sizeX = 8;

   840 

   841 			switch (((a0 >>12) & 0x0c)|(a1>>14))

   842 			{

   843 			case 0:

   844 				break;

   845 			case 1:

   846 				sizeX = sizeY = 16;

   847 				break;

   848 			case 2:

   849 				sizeX = sizeY = 32;

   850 				break;

   851 			case 3:

   852 				sizeX = sizeY = 64;

   853 				break;

   854 			case 4:

   855 				sizeX = 16;

   856 				break;

   857 			case 5:

   858 				sizeX = 32;

   859 				break;

   860 			case 6:

   861 				sizeX = 32;

   862 				sizeY = 16;

   863 				break;

   864 			case 7:

   865 				sizeX = 64;

   866 				sizeY = 32;

   867 				break;

   868 			case 8:

   869 				sizeY = 16;

   870 				break;

   871 			case 9:

   872 				sizeY = 32;

   873 				break;

   874 			case 10:

   875 				sizeX = 16;

   876 				sizeY = 32;

   877 				break;

   878 			case 11:

   879 				sizeX = 32;

   880 				sizeY = 64;

   881 				break;

   882 			default:

   883 				continue;

   884 			}

   885 

   886 #ifdef SPRITE_DEBUG

   887 			int maskX = sizeX-1;

   888 			int maskY = sizeY-1;

   889 #endif

   890 

   891 			int sy = (a0 & 255);

   892 

   893 			if (sy > 160)

   894 				sy -= 256;

   895 

   896 			if (a0 & 0x0100)

   897 			{

   898 				int fieldX = sizeX;

   899 				int fieldY = sizeY;

   900 				if (a0 & 0x0200)

   901 				{

   902 					fieldX <<= 1;

   903 					fieldY <<= 1;

   904 				}

   905 

   906 				int t = VCOUNT - sy;

   907 				if ((t >= 0) && (t < fieldY))

   908 				{

   909 					int sx = (a1 & 0x1FF);

   910 					if ((sx < 240) || (((sx + fieldX) & 511) < 240))

   911 					{

   912 						// int t2 = t - (fieldY >> 1);

   913 						int  rot = (a1 >> 9) & 0x1F;

   914 						u16 *OAM = (u16 *)oam;

   915 						int  dx  = READ16LE(&OAM[3 + (rot << 4)]);

   916 						if (dx & 0x8000)

   917 							dx |= 0xFFFF8000;

   918 						int dmx = READ16LE(&OAM[7 + (rot << 4)]);

   919 						if (dmx & 0x8000)

   920 							dmx |= 0xFFFF8000;

   921 						int dy = READ16LE(&OAM[11 + (rot << 4)]);

   922 						if (dy & 0x8000)

   923 							dy |= 0xFFFF8000;

   924 						int dmy = READ16LE(&OAM[15 + (rot << 4)]);

   925 						if (dmy & 0x8000)

   926 							dmy |= 0xFFFF8000;

   927 

   928 						if (a0 & 0x1000)

   929 						{

   930 							t -= (t % mosaicY);

   931 						}

   932 

   933 						int realX = ((sizeX) << 7) - (fieldX >> 1)*dx - (fieldY>>1)*dmx

   934 						            + t * dmx;

   935 						int realY = ((sizeY) << 7) - (fieldX >> 1)*dy - (fieldY>>1)*dmy

   936 						            + t * dmy;

   937 

   938 						u32 prio = (((a2 >> 10) & 3) << 25) | ((a0 & 0x0c00)<<6);

   939 

   940 						if (a0 & 0x2000)

   941 						{

   942 							int c = (a2 & 0x3FF);

   943 							if ((DISPCNT & 7) > 2 && (c < 512))

   944 								continue;

   945 							int inc = 32;

   946 							if (DISPCNT & 0x40)

   947 								inc = sizeX >> 2;

   948 							else

   949 								c &= 0x3FE;

   950 							for (int x = 0; x < fieldX; x++)

   951 							{

   952 								int xxx = realX >> 8;

   953 								int yyy = realY >> 8;

   954 

   955 								if (xxx < 0 || xxx >= sizeX ||

   956 								    yyy < 0 || yyy >= sizeY ||

   957 								    sx >= 240)

   958 									;

   959 								else

   960 								{

   961 									u32 color = vram[0x10000 + ((((c + (yyy>>3) * inc)<<5)

   962 									                             + ((yyy & 7)<<3) + ((xxx >> 3)<<6) +

   963 									                             (xxx & 7))&0x7FFF)];

   964 									if ((color == 0) && (((prio >> 25)&3) <

   965 									                     ((lineOBJ[sx]>>25)&3)))

   966 									{

   967 										lineOBJ[sx] = (lineOBJ[sx] & 0xF9FFFFFF) | prio;

   968 										if ((a0 & 0x1000) && m)

   969 											lineOBJ[sx] = (lineOBJ[sx-1] & 0xF9FFFFFF) | prio;

   970 									}

   971 									else if ((color) && (prio < (lineOBJ[sx]&0xFF000000)))

   972 									{

   973 										lineOBJ[sx] = READ16LE(&spritePalette[color]) | prio;

   974 										if ((a0 & 0x1000) && m)

   975 											lineOBJ[sx] = (lineOBJ[sx-1] & 0xF9FFFFFF) | prio;

   976 									}

   977 

   978 									if (a0 & 0x1000)

   979 									{

   980 										m++;

   981 										if (m == mosaicX)

   982 											m = 0;

   983 									}

   984 #ifdef SPRITE_DEBUG

   985 									if (t == 0 || t == maskY || x == 0 || x == maskX)

   986 										lineOBJ[sx] = 0x001F;

   987 #endif

   988 								}

   989 								sx     = (sx+1)&511;;

   990 								realX += dx;

   991 								realY += dy;

   992 							}

   993 						}

   994 						else

   995 						{

   996 							int c = (a2 & 0x3FF);

   997 							if ((DISPCNT & 7) > 2 && (c < 512))

   998 								continue;

   999 

  1000 							int inc = 32;

  1001 							if (DISPCNT & 0x40)

  1002 								inc = sizeX >> 3;

  1003 							int palette = (a2 >> 8) & 0xF0;

  1004 							for (int x = 0; x < fieldX; x++)

  1005 							{

  1006 								int xxx = realX >> 8;

  1007 								int yyy = realY >> 8;

  1008 								if (xxx < 0 || xxx >= sizeX ||

  1009 								    yyy < 0 || yyy >= sizeY ||

  1010 								    sx >= 240)

  1011 									;

  1012 								else

  1013 								{

  1014 									u32 color = vram[0x10000 + ((((c + (yyy>>3) * inc)<<5)

  1015 									                             + ((yyy & 7)<<2) + ((xxx >> 3)<<5) +

  1016 									                             ((xxx & 7)>>1))&0x7FFF)];

  1017 									if (xxx & 1)

  1018 										color >>= 4;

  1019 									else

  1020 										color &= 0x0F;

  1021 

  1022 									if ((color == 0) && (((prio >> 25)&3) <

  1023 									                     ((lineOBJ[sx]>>25)&3)))

  1024 									{

  1025 										lineOBJ[sx] = (lineOBJ[sx] & 0xF9FFFFFF) | prio;

  1026 										if ((a0 & 0x1000) && m)

  1027 											lineOBJ[sx] = (lineOBJ[sx-1] & 0xF9FFFFFF) | prio;

  1028 									}

  1029 									else if ((color) && (prio < (lineOBJ[sx]&0xFF000000)))

  1030 									{

  1031 										lineOBJ[sx] = READ16LE(&spritePalette[palette+color]) | prio;

  1032 										if ((a0 & 0x1000) && m)

  1033 											lineOBJ[sx] = (lineOBJ[sx-1] & 0xF9FFFFFF) | prio;

  1034 									}

  1035 								}

  1036 								if ((a0 & 0x1000) && m)

  1037 								{

  1038 									m++;

  1039 									if (m == mosaicX)

  1040 										m = 0;

  1041 								}

  1042 

  1043 #ifdef SPRITE_DEBUG

  1044 								if (t == 0 || t == maskY || x == 0 || x == maskX)

  1045 									lineOBJ[sx] = 0x001F;

  1046 #endif

  1047 								sx     = (sx+1)&511;;

  1048 								realX += dx;

  1049 								realY += dy;

  1050 							}

  1051 						}

  1052 					}

  1053 				}

  1054 			}

  1055 			else

  1056 			{

  1057 				int t = VCOUNT - sy;

  1058 				if ((t >= 0) && (t < sizeY))

  1059 				{

  1060 					int sx = (a1 & 0x1FF);

  1061 					if (((sx < 240) || (((sx+sizeX)&511) < 240)) && !(a0 & 0x0200))

  1062 					{

  1063 						if (a0 & 0x2000)

  1064 						{

  1065 							if (a1 & 0x2000)

  1066 								t = sizeY - t - 1;

  1067 							int c = (a2 & 0x3FF);

  1068 							if ((DISPCNT & 7) > 2 && (c < 512))

  1069 								continue;

  1070 

  1071 							int inc = 32;

  1072 							if (DISPCNT & 0x40)

  1073 							{

  1074 								inc = sizeX >> 2;

  1075 							}

  1076 							else

  1077 							{

  1078 								c &= 0x3FE;

  1079 							}

  1080 							int xxx = 0;

  1081 							if (a1 & 0x1000)

  1082 								xxx = sizeX-1;

  1083 

  1084 							if (a0 & 0x1000)

  1085 							{

  1086 								t -= (t % mosaicY);

  1087 							}

  1088 

  1089 							int address = 0x10000 + ((((c+ (t>>3) * inc) << 5)

  1090 							                          + ((t & 7) << 3) + ((xxx>>3)<<6) + (xxx & 7)) & 0x7FFF);

  1091 

  1092 							if (a1 & 0x1000)

  1093 								xxx = 7;

  1094 							u32 prio = (((a2 >> 10) & 3) << 25) | ((a0 & 0x0c00)<<6);

  1095 

  1096 							for (int xx = 0; xx < sizeX; xx++)

  1097 							{

  1098 								if (sx < 240)

  1099 								{

  1100 									u8 color = vram[address];

  1101 									if ((color == 0) && (((prio >> 25)&3) <

  1102 									                     ((lineOBJ[sx]>>25)&3)))

  1103 									{

  1104 										lineOBJ[sx] = (lineOBJ[sx] & 0xF9FFFFFF) | prio;

  1105 										if ((a0 & 0x1000) && m)

  1106 											lineOBJ[sx] = (lineOBJ[sx-1] & 0xF9FFFFFF) | prio;

  1107 									}

  1108 									else if ((color) && (prio < (lineOBJ[sx]&0xFF000000)))

  1109 									{

  1110 										lineOBJ[sx] = READ16LE(&spritePalette[color]) | prio;

  1111 										if ((a0 & 0x1000) && m)

  1112 											lineOBJ[sx] = (lineOBJ[sx-1] & 0xF9FFFFFF) | prio;

  1113 									}

  1114 

  1115 									if (a0 & 0x1000)

  1116 									{

  1117 										m++;

  1118 										if (m == mosaicX)

  1119 											m = 0;

  1120 									}

  1121 

  1122 #ifdef SPRITE_DEBUG

  1123 									if (t == 0 || t == maskY || xx == 0 || xx == maskX)

  1124 										lineOBJ[sx] = 0x001F;

  1125 #endif

  1126 								}

  1127 

  1128 								sx = (sx+1) & 511;

  1129 								if (a1 & 0x1000)

  1130 								{

  1131 									xxx--;

  1132 									address--;

  1133 									if (xxx == -1)

  1134 									{

  1135 										address -= 56;

  1136 										xxx      = 7;

  1137 									}

  1138 									if (address < 0x10000)

  1139 										address += 0x8000;

  1140 								}

  1141 								else

  1142 								{

  1143 									xxx++;

  1144 									address++;

  1145 									if (xxx == 8)

  1146 									{

  1147 										address += 56;

  1148 										xxx      = 0;

  1149 									}

  1150 									if (address > 0x17fff)

  1151 										address -= 0x8000;

  1152 								}

  1153 							}

  1154 						}

  1155 						else

  1156 						{

  1157 							if (a1 & 0x2000)

  1158 								t = sizeY - t - 1;

  1159 							int c = (a2 & 0x3FF);

  1160 							if ((DISPCNT & 7) > 2 && (c < 512))

  1161 								continue;

  1162 

  1163 							int inc = 32;

  1164 							if (DISPCNT & 0x40)

  1165 							{

  1166 								inc = sizeX >> 3;

  1167 							}

  1168 							int xxx = 0;

  1169 							if (a1 & 0x1000)

  1170 								xxx = sizeX - 1;

  1171 

  1172 							if (a0 & 0x1000)

  1173 							{

  1174 								t -= (t % mosaicY);

  1175 							}

  1176 

  1177 							int address = 0x10000 + ((((c + (t>>3) * inc)<<5)

  1178 							                          + ((t & 7)<<2) + ((xxx>>3)<<5) + ((xxx & 7) >> 1))&0x7FFF);

  1179 							u32 prio    = (((a2 >> 10) & 3) << 25) | ((a0 & 0x0c00)<<6);

  1180 							int palette = (a2 >> 8) & 0xF0;

  1181 							if (a1 & 0x1000)

  1182 							{

  1183 								xxx = 7;

  1184 								for (int xx = sizeX - 1; xx >= 0; xx--)

  1185 								{

  1186 									if (sx < 240)

  1187 									{

  1188 										u8 color = vram[address];

  1189 										if (xx & 1)

  1190 										{

  1191 											color = (color >> 4);

  1192 										}

  1193 										else

  1194 											color &= 0x0F;

  1195 

  1196 										if ((color == 0) && (((prio >> 25)&3) <

  1197 										                     ((lineOBJ[sx]>>25)&3)))

  1198 										{

  1199 											lineOBJ[sx] = (lineOBJ[sx] & 0xF9FFFFFF) | prio;

  1200 											if ((a0 & 0x1000) && m)

  1201 												lineOBJ[sx] = (lineOBJ[sx-1] & 0xF9FFFFFF) | prio;

  1202 										}

  1203 										else if ((color) && (prio < (lineOBJ[sx]&0xFF000000)))

  1204 										{

  1205 											lineOBJ[sx] = READ16LE(&spritePalette[palette + color]) | prio;

  1206 											if ((a0 & 0x1000) && m)

  1207 												lineOBJ[sx] = (lineOBJ[sx-1] & 0xF9FFFFFF) | prio;

  1208 										}

  1209 									}

  1210 									if (a0 & 0x1000)

  1211 									{

  1212 										m++;

  1213 										if (m == mosaicX)

  1214 											m = 0;

  1215 									}

  1216 #ifdef SPRITE_DEBUG

  1217 									if (t == 0 || t == maskY || xx == 0 || xx == maskX)

  1218 										lineOBJ[sx] = 0x001F;

  1219 #endif

  1220 									sx = (sx+1) & 511;

  1221 									xxx--;

  1222 									if (!(xx & 1))

  1223 										address--;

  1224 									if (xxx == -1)

  1225 									{

  1226 										xxx      = 7;

  1227 										address -= 28;

  1228 									}

  1229 									if (address < 0x10000)

  1230 										address += 0x8000;

  1231 								}

  1232 							}

  1233 							else

  1234 							{

  1235 								for (int xx = 0; xx < sizeX; xx++)

  1236 								{

  1237 									if (sx < 240)

  1238 									{

  1239 										u8 color = vram[address];

  1240 										if (xx & 1)

  1241 										{

  1242 											color = (color >> 4);

  1243 										}

  1244 										else

  1245 											color &= 0x0F;

  1246 

  1247 										if ((color == 0) && (((prio >> 25)&3) <

  1248 										                     ((lineOBJ[sx]>>25)&3)))

  1249 										{

  1250 											lineOBJ[sx] = (lineOBJ[sx] & 0xF9FFFFFF) | prio;

  1251 											if ((a0 & 0x1000) && m)

  1252 												lineOBJ[sx] = (lineOBJ[sx-1] & 0xF9FFFFFF) | prio;

  1253 										}

  1254 										else if ((color) && (prio < (lineOBJ[sx]&0xFF000000)))

  1255 										{

  1256 											lineOBJ[sx] = READ16LE(&spritePalette[palette + color]) | prio;

  1257 											if ((a0 & 0x1000) && m)

  1258 												lineOBJ[sx] = (lineOBJ[sx-1] & 0xF9FFFFFF) | prio;

  1259 										}

  1260 									}

  1261 									if (a0 & 0x1000)

  1262 									{

  1263 										m++;

  1264 										if (m == mosaicX)

  1265 											m = 0;

  1266 									}

  1267 #ifdef SPRITE_DEBUG

  1268 									if (t == 0 || t == maskY || xx == 0 || xx == maskX)

  1269 										lineOBJ[sx] = 0x001F;

  1270 #endif

  1271 									sx = (sx+1) & 511;

  1272 									xxx++;

  1273 									if (xx & 1)

  1274 										address++;

  1275 									if (xxx == 8)

  1276 									{

  1277 										address += 28;

  1278 										xxx      = 0;

  1279 									}

  1280 									if (address > 0x17fff)

  1281 										address -= 0x8000;

  1282 								}

  1283 							}

  1284 						}

  1285 					}

  1286 				}

  1287 			}

  1288 		}

  1289 	}

  1290 }

  1291 

  1292 inline void gfxDrawOBJWin(u32 *lineOBJWin)

  1293 {

  1294 	gfxClearArray(lineOBJWin);

  1295 	if (layerEnable & 0x8000)

  1296 	{

  1297 		u16 *sprites = (u16 *)oam;

  1298 		// u16 *spritePalette = &((u16 *)paletteRAM)[256];

  1299 		for (int x = 0; x < 128; x++)

  1300 		{

  1301 			u16 a0 = READ16LE(sprites++);

  1302 			u16 a1 = READ16LE(sprites++);

  1303 			u16 a2 = READ16LE(sprites++);

  1304 			sprites++;

  1305 

  1306 			// ignore non OBJ-WIN

  1307 			if ((a0 & 0x0c00) != 0x0800)

  1308 				continue;

  1309 

  1310 			int sizeY = 8;

  1311 			int sizeX = 8;

  1312 

  1313 			switch (((a0 >>12) & 0x0c)|(a1>>14))

  1314 			{

  1315 			case 0:

  1316 				break;

  1317 			case 1:

  1318 				sizeX = sizeY = 16;

  1319 				break;

  1320 			case 2:

  1321 				sizeX = sizeY = 32;

  1322 				break;

  1323 			case 3:

  1324 				sizeX = sizeY = 64;

  1325 				break;

  1326 			case 4:

  1327 				sizeX = 16;

  1328 				break;

  1329 			case 5:

  1330 				sizeX = 32;

  1331 				break;

  1332 			case 6:

  1333 				sizeX = 32;

  1334 				sizeY = 16;

  1335 				break;

  1336 			case 7:

  1337 				sizeX = 64;

  1338 				sizeY = 32;

  1339 				break;

  1340 			case 8:

  1341 				sizeY = 16;

  1342 				break;

  1343 			case 9:

  1344 				sizeY = 32;

  1345 				break;

  1346 			case 10:

  1347 				sizeX = 16;

  1348 				sizeY = 32;

  1349 				break;

  1350 			case 11:

  1351 				sizeX = 32;

  1352 				sizeY = 64;

  1353 				break;

  1354 			default:

  1355 				continue;

  1356 			}

  1357 

  1358 			int sy = (a0 & 255);

  1359 

  1360 			if (sy > 160)

  1361 				sy -= 256;

  1362 

  1363 			if (a0 & 0x0100)

  1364 			{

  1365 				int fieldX = sizeX;

  1366 				int fieldY = sizeY;

  1367 				if (a0 & 0x0200)

  1368 				{

  1369 					fieldX <<= 1;

  1370 					fieldY <<= 1;

  1371 				}

  1372 

  1373 				int t = VCOUNT - sy;

  1374 				if ((t >= 0) && (t < fieldY))

  1375 				{

  1376 					int sx = (a1 & 0x1FF);

  1377 					if ((sx < 240) || (((sx + fieldX) & 511) < 240))

  1378 					{

  1379 						// int t2 = t - (fieldY >> 1);

  1380 						int  rot = (a1 >> 9) & 0x1F;

  1381 						u16 *OAM = (u16 *)oam;

  1382 						int  dx  = READ16LE(&OAM[3 + (rot << 4)]);

  1383 						if (dx & 0x8000)

  1384 							dx |= 0xFFFF8000;

  1385 						int dmx = READ16LE(&OAM[7 + (rot << 4)]);

  1386 						if (dmx & 0x8000)

  1387 							dmx |= 0xFFFF8000;

  1388 						int dy = READ16LE(&OAM[11 + (rot << 4)]);

  1389 						if (dy & 0x8000)

  1390 							dy |= 0xFFFF8000;

  1391 						int dmy = READ16LE(&OAM[15 + (rot << 4)]);

  1392 						if (dmy & 0x8000)

  1393 							dmy |= 0xFFFF8000;

  1394 

  1395 						int realX = ((sizeX) << 7) - (fieldX >> 1)*dx - (fieldY>>1)*dmx

  1396 						            + t * dmx;

  1397 						int realY = ((sizeY) << 7) - (fieldX >> 1)*dy - (fieldY>>1)*dmy

  1398 						            + t * dmy;

  1399 

  1400 						// u32 prio = (((a2 >> 10) & 3) << 25) | ((a0 & 0x0c00)<<6);

  1401 

  1402 						if (a0 & 0x2000)

  1403 						{

  1404 							int c = (a2 & 0x3FF);

  1405 							if ((DISPCNT & 7) > 2 && (c < 512))

  1406 								continue;

  1407 							int inc = 32;

  1408 							if (DISPCNT & 0x40)

  1409 								inc = sizeX >> 2;

  1410 							else

  1411 								c &= 0x3FE;

  1412 							for (int x = 0; x < fieldX; x++)

  1413 							{

  1414 								int xxx = realX >> 8;

  1415 								int yyy = realY >> 8;

  1416 

  1417 								if (xxx < 0 || xxx >= sizeX ||

  1418 								    yyy < 0 || yyy >= sizeY)

  1419 								{}

  1420 								else

  1421 								{

  1422 									u32 color = vram[0x10000 + ((((c + (yyy>>3) * inc)<<5)

  1423 									                             + ((yyy & 7)<<3) + ((xxx >> 3)<<6) +

  1424 									                             (xxx & 7))&0x7fff)];

  1425 									if (color)

  1426 									{

  1427 										lineOBJWin[sx] = 1;

  1428 									}

  1429 								}

  1430 								sx     = (sx+1)&511;;

  1431 								realX += dx;

  1432 								realY += dy;

  1433 							}

  1434 						}

  1435 						else

  1436 						{

  1437 							int c = (a2 & 0x3FF);

  1438 							if ((DISPCNT & 7) > 2 && (c < 512))

  1439 								continue;

  1440 

  1441 							int inc = 32;

  1442 							if (DISPCNT & 0x40)

  1443 								inc = sizeX >> 3;

  1444 							// int palette = (a2 >> 8) & 0xF0;

  1445 							for (int x = 0; x < fieldX; x++)

  1446 							{

  1447 								int xxx = realX >> 8;

  1448 								int yyy = realY >> 8;

  1449 

  1450 								//              if(x == 0 || x == (sizeX-1) ||

  1451 								//                 t == 0 || t == (sizeY-1)) {

  1452 								//                lineOBJ[sx] = 0x001F | prio;

  1453 								//              } else {

  1454 								if (xxx < 0 || xxx >= sizeX ||

  1455 								    yyy < 0 || yyy >= sizeY)

  1456 								{}

  1457 								else

  1458 								{

  1459 									u32 color = vram[0x10000 + ((((c + (yyy>>3) * inc)<<5)

  1460 									                             + ((yyy & 7)<<2) + ((xxx >> 3)<<5) +

  1461 									                             ((xxx & 7)>>1))&0x7fff)];

  1462 									if (xxx & 1)

  1463 										color >>= 4;

  1464 									else

  1465 										color &= 0x0F;

  1466 

  1467 									if (color)

  1468 									{

  1469 										lineOBJWin[sx] = 1;

  1470 									}

  1471 								}

  1472 								//            }

  1473 								sx     = (sx+1)&511;;

  1474 								realX += dx;

  1475 								realY += dy;

  1476 							}

  1477 						}

  1478 					}

  1479 				}

  1480 			}

  1481 			else

  1482 			{

  1483 				int t = VCOUNT - sy;

  1484 				if ((t >= 0) && (t < sizeY))

  1485 				{

  1486 					int sx = (a1 & 0x1FF);

  1487 					if (((sx < 240) || (((sx+sizeX)&511) < 240)) && !(a0 & 0x0200))

  1488 					{

  1489 						if (a0 & 0x2000)

  1490 						{

  1491 							if (a1 & 0x2000)

  1492 								t = sizeY - t - 1;

  1493 							int c = (a2 & 0x3FF);

  1494 							if ((DISPCNT & 7) > 2 && (c < 512))

  1495 								continue;

  1496 

  1497 							int inc = 32;

  1498 							if (DISPCNT & 0x40)

  1499 							{

  1500 								inc = sizeX >> 2;

  1501 							}

  1502 							else

  1503 							{

  1504 								c &= 0x3FE;

  1505 							}

  1506 							int xxx = 0;

  1507 							if (a1 & 0x1000)

  1508 								xxx = sizeX-1;

  1509 							int address = 0x10000 + ((((c+ (t>>3) * inc) << 5)

  1510 							                          + ((t & 7) << 3) + ((xxx>>3)<<6) + (xxx & 7))&0x7fff);

  1511 							if (a1 & 0x1000)

  1512 								xxx = 7;

  1513 							// u32 prio = (((a2 >> 10) & 3) << 25) | ((a0 & 0x0c00)<<6);

  1514 							for (int xx = 0; xx < sizeX; xx++)

  1515 							{

  1516 								if (sx < 240)

  1517 								{

  1518 									u8 color = vram[address];

  1519 									if (color)

  1520 									{

  1521 										lineOBJWin[sx] = 1;

  1522 									}

  1523 								}

  1524 

  1525 								sx = (sx+1) & 511;

  1526 								if (a1 & 0x1000)

  1527 								{

  1528 									xxx--;

  1529 									address--;

  1530 									if (xxx == -1)

  1531 									{

  1532 										address -= 56;

  1533 										xxx      = 7;

  1534 									}

  1535 									if (address < 0x10000)

  1536 										address += 0x8000;

  1537 								}

  1538 								else

  1539 								{

  1540 									xxx++;

  1541 									address++;

  1542 									if (xxx == 8)

  1543 									{

  1544 										address += 56;

  1545 										xxx      = 0;

  1546 									}

  1547 									if (address > 0x17fff)

  1548 										address -= 0x8000;

  1549 								}

  1550 							}

  1551 						}

  1552 						else

  1553 						{

  1554 							if (a1 & 0x2000)

  1555 								t = sizeY - t - 1;

  1556 							int c = (a2 & 0x3FF);

  1557 							if ((DISPCNT & 7) > 2 && (c < 512))

  1558 								continue;

  1559 

  1560 							int inc = 32;

  1561 							if (DISPCNT & 0x40)

  1562 							{

  1563 								inc = sizeX >> 3;

  1564 							}

  1565 							int xxx = 0;

  1566 							if (a1 & 0x1000)

  1567 								xxx = sizeX - 1;

  1568 							int address = 0x10000 + ((((c + (t>>3) * inc)<<5)

  1569 							                          + ((t & 7)<<2) + ((xxx>>3)<<5) + ((xxx & 7) >> 1))&0x7fff);

  1570 							// u32 prio = (((a2 >> 10) & 3) << 25) | ((a0 & 0x0c00)<<6);

  1571 							// int palette = (a2 >> 8) & 0xF0;

  1572 							if (a1 & 0x1000)

  1573 							{

  1574 								xxx = 7;

  1575 								for (int xx = sizeX - 1; xx >= 0; xx--)

  1576 								{

  1577 									if (sx < 240)

  1578 									{

  1579 										u8 color = vram[address];

  1580 										if (xx & 1)

  1581 										{

  1582 											color = (color >> 4);

  1583 										}

  1584 										else

  1585 											color &= 0x0F;

  1586 

  1587 										if (color)

  1588 										{

  1589 											lineOBJWin[sx] = 1;

  1590 										}

  1591 									}

  1592 									sx = (sx+1) & 511;

  1593 									xxx--;

  1594 									if (!(xx & 1))

  1595 										address--;

  1596 									if (xxx == -1)

  1597 									{

  1598 										xxx      = 7;

  1599 										address -= 28;

  1600 									}

  1601 									if (address < 0x10000)

  1602 										address += 0x8000;

  1603 								}

  1604 							}

  1605 							else

  1606 							{

  1607 								for (int xx = 0; xx < sizeX; xx++)

  1608 								{

  1609 									if (sx < 240)

  1610 									{

  1611 										u8 color = vram[address];

  1612 										if (xx & 1)

  1613 										{

  1614 											color = (color >> 4);

  1615 										}

  1616 										else

  1617 											color &= 0x0F;

  1618 

  1619 										if (color)

  1620 										{

  1621 											lineOBJWin[sx] = 1;

  1622 										}

  1623 									}

  1624 									sx = (sx+1) & 511;

  1625 									xxx++;

  1626 									if (xx & 1)

  1627 										address++;

  1628 									if (xxx == 8)

  1629 									{

  1630 										address += 28;

  1631 										xxx      = 0;

  1632 									}

  1633 									if (address > 0x17fff)

  1634 										address -= 0x8000;

  1635 								}

  1636 							}

  1637 						}

  1638 					}

  1639 				}

  1640 			}

  1641 		}

  1642 	}

  1643 }

  1644 

  1645 inline u32 gfxIncreaseBrightness(u32 color, int coeff)

  1646 {

  1647 	int r = (color & 0x1F);

  1648 	int g = ((color >> 5) & 0x1F);

  1649 	int b = ((color >> 10) & 0x1F);

  1650 

  1651 	r = r + (((31 - r) * coeff) >> 4);

  1652 	g = g + (((31 - g) * coeff) >> 4);

  1653 	b = b + (((31 - b) * coeff) >> 4);

  1654 	if (r > 31)

  1655 		r = 31;

  1656 	if (g > 31)

  1657 		g = 31;

  1658 	if (b > 31)

  1659 		b = 31;

  1660 	color = (color & 0xFFFF0000) | (b << 10) | (g << 5) | r;

  1661 	return color;

  1662 }

  1663 

  1664 inline void gfxIncreaseBrightness(u32 *line, int coeff)

  1665 {

  1666 	for (int x = 0; x < 240; x++)

  1667 	{

  1668 		u32 color = *line;

  1669 		int r     = (color & 0x1F);

  1670 		int g     = ((color >> 5) & 0x1F);

  1671 		int b     = ((color >> 10) & 0x1F);

  1672 

  1673 		r = r + (((31 - r) * coeff) >> 4);

  1674 		g = g + (((31 - g) * coeff) >> 4);

  1675 		b = b + (((31 - b) * coeff) >> 4);

  1676 		if (r > 31)

  1677 			r = 31;

  1678 		if (g > 31)

  1679 			g = 31;

  1680 		if (b > 31)

  1681 			b = 31;

  1682 		*line++ = (color & 0xFFFF0000) | (b << 10) | (g << 5) | r;

  1683 	}

  1684 }

  1685 

  1686 inline u32 gfxDecreaseBrightness(u32 color, int coeff)

  1687 {

  1688 	int r = (color & 0x1F);

  1689 	int g = ((color >> 5) & 0x1F);

  1690 	int b = ((color >> 10) & 0x1F);

  1691 

  1692 	r = r - ((r * coeff) >> 4);

  1693 	g = g - ((g * coeff) >> 4);

  1694 	b = b - ((b * coeff) >> 4);

  1695 	if (r < 0)

  1696 		r = 0;

  1697 	if (g < 0)

  1698 		g = 0;

  1699 	if (b < 0)

  1700 		b = 0;

  1701 	color = (color & 0xFFFF0000) | (b << 10) | (g << 5) | r;

  1702 

  1703 	return color;

  1704 }

  1705 

  1706 inline void gfxDecreaseBrightness(u32 *line, int coeff)

  1707 {

  1708 	for (int x = 0; x < 240; x++)

  1709 	{

  1710 		u32 color = *line;

  1711 		int r     = (color & 0x1F);

  1712 		int g     = ((color >> 5) & 0x1F);

  1713 		int b     = ((color >> 10) & 0x1F);

  1714 

  1715 		r = r - ((r * coeff) >> 4);

  1716 		g = g - ((g * coeff) >> 4);

  1717 		b = b - ((b * coeff) >> 4);

  1718 		if (r < 0)

  1719 			r = 0;

  1720 		if (g < 0)

  1721 			g = 0;

  1722 		if (b < 0)

  1723 			b = 0;

  1724 		*line++ = (color & 0xFFFF0000) | (b << 10) | (g << 5) | r;

  1725 	}

  1726 }

  1727 

  1728 inline u32 gfxAlphaBlend(u32 color, u32 color2, int ca, int cb)

  1729 {

  1730 	if (color < 0x80000000)

  1731 	{

  1732 		int r  = (color & 0x1F);

  1733 		int g  = ((color >> 5) & 0x1F);

  1734 		int b  = ((color >> 10) & 0x1F);

  1735 		int r0 = (color2 & 0x1F);

  1736 		int g0 = ((color2 >> 5) & 0x1F);

  1737 		int b0 = ((color2 >> 10) & 0x1F);

  1738 

  1739 		r = ((r * ca) >> 4) + ((r0 * cb) >> 4);

  1740 		g = ((g * ca) >> 4) + ((g0 * cb) >> 4);

  1741 		b = ((b * ca) >> 4) + ((b0 * cb) >> 4);

  1742 

  1743 		if (r > 31)

  1744 			r = 31;

  1745 		if (g > 31)

  1746 			g = 31;

  1747 		if (b > 31)

  1748 			b = 31;

  1749 

  1750 		return (color & 0xFFFF0000) | (b << 10) | (g << 5) | r;

  1751 	}

  1752 	return color;

  1753 }

  1754 

  1755 inline void gfxAlphaBlend(u32 *ta, u32 *tb, int ca, int cb)

  1756 {

  1757 	for (int x = 0; x < 240; x++)

  1758 	{

  1759 		u32 color = *ta;

  1760 		if (color < 0x80000000)

  1761 		{

  1762 			int r      = (color & 0x1F);

  1763 			int g      = ((color >> 5) & 0x1F);

  1764 			int b      = ((color >> 10) & 0x1F);

  1765 			u32 color2 = (*tb++);

  1766 			int r0     = (color2 & 0x1F);

  1767 			int g0     = ((color2 >> 5) & 0x1F);

  1768 			int b0     = ((color2 >> 10) & 0x1F);

  1769 

  1770 			r = ((r * ca) >> 4) + ((r0 * cb) >> 4);

  1771 			g = ((g * ca) >> 4) + ((g0 * cb) >> 4);

  1772 			b = ((b * ca) >> 4) + ((b0 * cb) >> 4);

  1773 

  1774 			if (r > 31)

  1775 				r = 31;

  1776 			if (g > 31)

  1777 				g = 31;

  1778 			if (b > 31)

  1779 				b = 31;

  1780 

  1781 			*ta++ = (color & 0xFFFF0000) | (b << 10) | (g << 5) | r;

  1782 		}

  1783 		else

  1784 		{

  1785 			ta++;

  1786 			tb++;

  1787 		}

  1788 	}

  1789 }

  1790 

  1791 #endif // VBA_GBA_GFX_H
author	Robert McIntyre <rlm@mit.edu>
date	Sat, 03 Mar 2012 10:31:27 -0600
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