plugins/gpu_unai/gpu.cpp

   1 /***************************************************************************
   2 *   Copyright (C) 2010 PCSX4ALL Team                                      *
   3 *   Copyright (C) 2010 Unai                                               *
   4 *                                                                         *
   5 *   This program is free software; you can redistribute it and/or modify  *
   6 *   it under the terms of the GNU General Public License as published by  *
   7 *   the Free Software Foundation; either version 2 of the License, or     *
   8 *   (at your option) any later version.                                   *
   9 *                                                                         *
  10 *   This program is distributed in the hope that it will be useful,       *
  11 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13 *   GNU General Public License for more details.                          *
  14 *                                                                         *
  15 *   You should have received a copy of the GNU General Public License     *
  16 *   along with this program; if not, write to the                         *
  17 *   Free Software Foundation, Inc.,                                       *
  18 *   51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA.           *
  19 ***************************************************************************/
  20
  21 #include "port.h"
  22 #include "gpu.h"
  23 #include "profiler.h"
  24 #include "debug.h"
  25
  26 int skipCount = 2; /* frame skip (0,1,2,3...) */
  27 int skCount=0; /* internal frame skip */
  28 int linesInterlace = 0;  /* internal lines interlace */
  29 int linesInterlace_user = 0; /* Lines interlace */
  30
  31 bool isSkip=false; /* skip frame (info coming from GPU) */
  32 bool skipFrame=false; /* skip frame (according to frame skip) */
  33 bool alt_fps = false; /* Alternative FPS algorithm */
  34 bool show_fps = false; /* Show FPS statistics */
  35
  36 bool isPAL=false; /* PAL video timing */
  37 bool progressInterlace_flag = false; /* Progressive interlace flag */
  38 bool progressInterlace = false; /* Progressive interlace option*/
  39 bool frameLimit = false; /* frames to wait */
  40 bool light = true; /* lighting */
  41 bool blend = true; /* blending */
  42
  43 bool fb_dirty = false;
  44
  45 bool enableAbbeyHack = false; /* Abe's Odyssey hack */
  46 u8 BLEND_MODE;
  47 u8 TEXT_MODE;
  48 u8 Masking;
  49
  50 u16 PixelMSB;
  51 u16 PixelData;
  52
  53 ///////////////////////////////////////////////////////////////////////////////
  54 //  GPU Global data
  55 ///////////////////////////////////////////////////////////////////////////////
  56
  57 ///////////////////////////////////////////////////////////////////////////////
  58 //  Dma Transfers info
  59 s32             px,py;
  60 s32             x_end,y_end;
  61 u16*  pvram;
  62
  63 u32 FrameToRead;
  64 u32 FrameToWrite;
  65
  66 u32 GP0;
  67 s32 PacketCount;
  68 s32 PacketIndex;
  69
  70 ///////////////////////////////////////////////////////////////////////////////
  71 //  Display status
  72 u32 DisplayArea   [6];
  73
  74 ///////////////////////////////////////////////////////////////////////////////
  75 //  Rasterizer status
  76 u32 TextureWindow [4];
  77 u32 DrawingArea   [4];
  78 u32 DrawingOffset [2];
  79
  80 ///////////////////////////////////////////////////////////////////////////////
  81 //  Rasterizer status
  82
  83 u16* TBA;
  84 u16* CBA;
  85
  86 ///////////////////////////////////////////////////////////////////////////////
  87 //  Inner Loops
  88 s32   u4, du4;
  89 s32   v4, dv4;
  90 s32   r4, dr4;
  91 s32   g4, dg4;
  92 s32   b4, db4;
  93 u32   lInc;
  94 u32   tInc, tMsk;
  95
  96 GPUPacket PacketBuffer;
  97 // FRAME_BUFFER_SIZE is defined in bytes; 512K is guard memory for out of range reads
  98 u16   GPU_FrameBuffer[(FRAME_BUFFER_SIZE+512*1024)/2] __attribute__((aligned(16)));
  99 u32   GPU_GP1;
 100
 101 ///////////////////////////////////////////////////////////////////////////////
 102 //  Inner loop driver instanciation file
 103 #include "gpu_inner.h"
 104
 105 ///////////////////////////////////////////////////////////////////////////////
 106 //  GPU Raster Macros
 107 #define GPU_RGB16(rgb)        ((((rgb)&0xF80000)>>9)|(((rgb)&0xF800)>>6)|(((rgb)&0xF8)>>3))
 108
 109 #define GPU_EXPANDSIGN_POLY(x)  (((s32)(x)<<20)>>20)
 110 //#define GPU_EXPANDSIGN_POLY(x)  (((s32)(x)<<21)>>21)
 111 #define GPU_EXPANDSIGN_SPRT(x)  (((s32)(x)<<21)>>21)
 112
 113 //#define       GPU_TESTRANGE(x)      { if((u32)(x+1024) > 2047) return; }
 114 #define GPU_TESTRANGE(x)      { if ((x<-1023) || (x>1023)) return; }
 115
 116 #define GPU_SWAP(a,b,t) {(t)=(a);(a)=(b);(b)=(t);}
 117
 118 ///////////////////////////////////////////////////////////////////////////////
 119 // GPU internal image drawing functions
 120 #include "gpu_raster_image.h"
 121
 122 ///////////////////////////////////////////////////////////////////////////////
 123 // GPU internal line drawing functions
 124 #include "gpu_raster_line.h"
 125
 126 ///////////////////////////////////////////////////////////////////////////////
 127 // GPU internal polygon drawing functions
 128 #include "gpu_raster_polygon.h"
 129
 130 ///////////////////////////////////////////////////////////////////////////////
 131 // GPU internal sprite drawing functions
 132 #include "gpu_raster_sprite.h"
 133
 134 ///////////////////////////////////////////////////////////////////////////////
 135 // GPU command buffer execution/store
 136 #include "gpu_command.h"
 137
 138 ///////////////////////////////////////////////////////////////////////////////
 139 INLINE void gpuReset(void)
 140 {
 141         GPU_GP1 = 0x14802000;
 142         TextureWindow[0] = 0;
 143         TextureWindow[1] = 0;
 144         TextureWindow[2] = 255;
 145         TextureWindow[3] = 255;
 146         DrawingArea[2] = 256;
 147         DrawingArea[3] = 240;
 148         DisplayArea[2] = 256;
 149         DisplayArea[3] = 240;
 150         DisplayArea[5] = 240;
 151 }
 152
 153 ///////////////////////////////////////////////////////////////////////////////
 154 bool  GPU_init(void)
 155 {
 156         gpuReset();
 157
 158         // s_invTable
 159         for(int i=1;i<=(1<<TABLE_BITS);++i)
 160         {
 161                 double v = 1.0 / double(i);
 162                 #ifdef GPU_TABLE_10_BITS
 163                 v *= double(0xffffffff>>1);
 164                 #else
 165                 v *= double(0x80000000);
 166                 #endif
 167                 s_invTable[i-1]=s32(v);
 168         }
 169         return (0);
 170 }
 171
 172 ///////////////////////////////////////////////////////////////////////////////
 173 void  GPU_shutdown(void)
 174 {
 175 }
 176
 177 ///////////////////////////////////////////////////////////////////////////////
 178 long  GPU_freeze(unsigned int bWrite, GPUFreeze_t* p2)
 179 {
 180         if (!p2) return (0);
 181         if (p2->Version != 1) return (0);
 182
 183         if (bWrite)
 184         {
 185                 p2->GPU_gp1 = GPU_GP1;
 186                 memset(p2->Control, 0, sizeof(p2->Control));
 187                 p2->Control[5] = DisplayArea[0] | (DisplayArea[1] << 10);
 188                 p2->Control[7] = DisplayArea[4] | (DisplayArea[5] << 10);
 189                 p2->Control[8] = ((GPU_GP1 >> 17) & 0x3f) | ((GPU_GP1 >> 10) & 0x40);
 190                 memcpy(p2->FrameBuffer, (u16*)GPU_FrameBuffer, FRAME_BUFFER_SIZE);
 191                 return (1);
 192         }
 193         else
 194         {
 195                 GPU_GP1 = p2->GPU_gp1;
 196                 memcpy((u16*)GPU_FrameBuffer, p2->FrameBuffer, FRAME_BUFFER_SIZE);
 197                 GPU_writeStatus((5 << 24) | p2->Control[5]);
 198                 GPU_writeStatus((7 << 24) | p2->Control[7]);
 199                 GPU_writeStatus((8 << 24) | p2->Control[8]);
 200                 gpuSetTexture(GPU_GP1);
 201                 return (1);
 202         }
 203         return (0);
 204 }
 205
 206 ///////////////////////////////////////////////////////////////////////////////
 207 //  GPU DMA comunication
 208
 209 ///////////////////////////////////////////////////////////////////////////////
 210 u8 PacketSize[256] =
 211 {
 212         0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //              0-15
 213         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //              16-31
 214         3, 3, 3, 3, 6, 6, 6, 6, 4, 4, 4, 4, 8, 8, 8, 8, //              32-47
 215         5, 5, 5, 5, 8, 8, 8, 8, 7, 7, 7, 7, 11, 11, 11, 11,     //      48-63
 216         2, 2, 2, 2, 0, 0, 0, 0, 3, 3, 3, 3, 3, 3, 3, 3, //              64-79
 217         3, 3, 3, 3, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, //              80-95
 218         2, 2, 2, 2, 3, 3, 3, 3, 1, 1, 1, 1, 2, 2, 2, 2, //              96-111
 219         1, 1, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, //              112-127
 220         3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //              128-
 221         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //              144
 222         2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //              160
 223         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
 224         2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
 225         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
 226         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //
 227         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0  //
 228 };
 229
 230 ///////////////////////////////////////////////////////////////////////////////
 231 INLINE void gpuSendPacket()
 232 {
 233 #ifdef DEBUG_ANALYSIS
 234         dbg_anacnt_GPU_sendPacket++;
 235 #endif
 236         gpuSendPacketFunction(PacketBuffer.U4[0]>>24);
 237 }
 238
 239 ///////////////////////////////////////////////////////////////////////////////
 240 INLINE void gpuCheckPacket(u32 uData)
 241 {
 242         if (PacketCount)
 243         {
 244                 PacketBuffer.U4[PacketIndex++] = uData;
 245                 --PacketCount;
 246         }
 247         else
 248         {
 249                 PacketBuffer.U4[0] = uData;
 250                 PacketCount = PacketSize[uData >> 24];
 251                 PacketIndex = 1;
 252         }
 253         if (!PacketCount) gpuSendPacket();
 254 }
 255
 256 ///////////////////////////////////////////////////////////////////////////////
 257 void  GPU_writeDataMem(u32* dmaAddress, s32 dmaCount)
 258 {
 259 #ifdef DEBUG_ANALYSIS
 260         dbg_anacnt_GPU_writeDataMem++;
 261 #endif
 262         pcsx4all_prof_pause(PCSX4ALL_PROF_CPU);
 263         pcsx4all_prof_start_with_pause(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_HW_WRITE);
 264         u32 data;
 265         const u16 *VIDEO_END=(GPU_FrameBuffer+(FRAME_BUFFER_SIZE/2)-1);
 266         GPU_GP1 &= ~0x14000000;
 267
 268         while (dmaCount)
 269         {
 270                 if (FrameToWrite)
 271                 {
 272                         while (dmaCount--)
 273                         {
 274                                 data = *dmaAddress++;
 275                                 if ((&pvram[px])>(VIDEO_END)) pvram-=512*1024;
 276                                 pvram[px] = data;
 277                                 if (++px>=x_end)
 278                                 {
 279                                         px = 0;
 280                                         pvram += 1024;
 281                                         if (++py>=y_end)
 282                                         {
 283                                                 FrameToWrite = 0;
 284                                                 GPU_GP1 &= ~0x08000000;
 285                                                 break;
 286                                         }
 287                                 }
 288                                 if ((&pvram[px])>(VIDEO_END)) pvram-=512*1024;
 289                                 pvram[px] = data>>16;
 290                                 if (++px>=x_end)
 291                                 {
 292                                         px = 0;
 293                                         pvram += 1024;
 294                                         if (++py>=y_end)
 295                                         {
 296                                                 FrameToWrite = 0;
 297                                                 GPU_GP1 &= ~0x08000000;
 298                                                 break;
 299                                         }
 300                                 }
 301                         }
 302                 }
 303                 else
 304                 {
 305                         data = *dmaAddress++;
 306                         dmaCount--;
 307                         gpuCheckPacket(data);
 308                 }
 309         }
 310
 311         GPU_GP1 = (GPU_GP1 | 0x14000000) & ~0x60000000;
 312         fb_dirty = true;
 313         pcsx4all_prof_end_with_resume(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_HW_WRITE);
 314         pcsx4all_prof_resume(PCSX4ALL_PROF_CPU);
 315 }
 316
 317 u32 *lUsedAddr[3];
 318 INLINE int CheckForEndlessLoop(u32 *laddr)
 319 {
 320         if(laddr==lUsedAddr[1]) return 1;
 321         if(laddr==lUsedAddr[2]) return 1;
 322
 323         if(laddr<lUsedAddr[0]) lUsedAddr[1]=laddr;
 324         else                   lUsedAddr[2]=laddr;
 325         lUsedAddr[0]=laddr;
 326         return 0;
 327 }
 328
 329 ///////////////////////////////////////////////////////////////////////////////
 330 void  GPU_dmaChain(u32* baseAddr, u32 dmaVAddr)
 331 {
 332 #ifdef DEBUG_ANALYSIS
 333         dbg_anacnt_GPU_dmaChain++;
 334 #endif
 335         pcsx4all_prof_start_with_pause(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_HW_WRITE);
 336         u32 data, *address, count, offset;
 337         unsigned int DMACommandCounter = 0;
 338
 339         GPU_GP1 &= ~0x14000000;
 340         lUsedAddr[0]=lUsedAddr[1]=lUsedAddr[2]=(u32*)0x1fffff;
 341         dmaVAddr &= 0x001FFFFF;
 342         while (dmaVAddr != 0x1FFFFF)
 343         {
 344                 address = (baseAddr + (dmaVAddr >> 2));
 345                 if(DMACommandCounter++ > 2000000) break;
 346                 if(CheckForEndlessLoop(address)) break;
 347                 data = *address++;
 348                 count = (data >> 24);
 349                 offset = data & 0x001FFFFF;
 350                 if (dmaVAddr != offset) dmaVAddr = offset;
 351                 else dmaVAddr = 0x1FFFFF;
 352
 353                 if(count>0) GPU_writeDataMem(address,count);
 354         }
 355         GPU_GP1 = (GPU_GP1 | 0x14000000) & ~0x60000000;
 356         pcsx4all_prof_end_with_resume(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_HW_WRITE);
 357 }
 358
 359 ///////////////////////////////////////////////////////////////////////////////
 360 void  GPU_writeData(u32 data)
 361 {
 362         const u16 *VIDEO_END=(GPU_FrameBuffer+(FRAME_BUFFER_SIZE/2)-1);
 363 #ifdef DEBUG_ANALYSIS
 364         dbg_anacnt_GPU_writeData++;
 365 #endif
 366         pcsx4all_prof_pause(PCSX4ALL_PROF_CPU);
 367         pcsx4all_prof_start_with_pause(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_HW_WRITE);
 368         GPU_GP1 &= ~0x14000000;
 369
 370         if (FrameToWrite)
 371         {
 372                 if ((&pvram[px])>(VIDEO_END)) pvram-=512*1024;
 373                 pvram[px]=(u16)data;
 374                 if (++px>=x_end)
 375                 {
 376                         px = 0;
 377                         pvram += 1024;
 378                         if (++py>=y_end)
 379                         {
 380                                 FrameToWrite = 0;
 381                                 GPU_GP1 &= ~0x08000000;
 382                         }
 383                 }
 384                 if (FrameToWrite)
 385                 {
 386                         if ((&pvram[px])>(VIDEO_END)) pvram-=512*1024;
 387                         pvram[px]=data>>16;
 388                         if (++px>=x_end)
 389                         {
 390                                 px = 0;
 391                                 pvram += 1024;
 392                                 if (++py>=y_end)
 393                                 {
 394                                         FrameToWrite = 0;
 395                                         GPU_GP1 &= ~0x08000000;
 396                                 }
 397                         }
 398                 }
 399         }
 400         else
 401         {
 402                 gpuCheckPacket(data);
 403         }
 404         GPU_GP1 |= 0x14000000;
 405         fb_dirty = true;
 406         pcsx4all_prof_end_with_resume(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_HW_WRITE);
 407         pcsx4all_prof_resume(PCSX4ALL_PROF_CPU);
 408
 409 }
 410
 411
 412 ///////////////////////////////////////////////////////////////////////////////
 413 void  GPU_readDataMem(u32* dmaAddress, s32 dmaCount)
 414 {
 415         const u16 *VIDEO_END=(GPU_FrameBuffer+(FRAME_BUFFER_SIZE/2)-1);
 416 #ifdef DEBUG_ANALYSIS
 417         dbg_anacnt_GPU_readDataMem++;
 418 #endif
 419         if(!FrameToRead) return;
 420
 421         pcsx4all_prof_start_with_pause(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_HW_WRITE);
 422         GPU_GP1 &= ~0x14000000;
 423         do
 424         {
 425                 if ((&pvram[px])>(VIDEO_END)) pvram-=512*1024;
 426                 // lower 16 bit
 427                 u32 data = (unsigned long)pvram[px];
 428
 429                 if (++px>=x_end)
 430                 {
 431                         px = 0;
 432                         pvram += 1024;
 433                 }
 434
 435                 if ((&pvram[px])>(VIDEO_END)) pvram-=512*1024;
 436                 // higher 16 bit (always, even if it's an odd width)
 437                 data |= (unsigned long)(pvram[px])<<16;
 438
 439                 *dmaAddress++ = data;
 440
 441                 if (++px>=x_end)
 442                 {
 443                         px = 0;
 444                         pvram += 1024;
 445                         if (++py>=y_end)
 446                         {
 447                                 FrameToRead = 0;
 448                                 GPU_GP1 &= ~0x08000000;
 449                                 break;
 450                         }
 451                 }
 452         } while (--dmaCount);
 453
 454         GPU_GP1 = (GPU_GP1 | 0x14000000) & ~0x60000000;
 455         pcsx4all_prof_end_with_resume(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_HW_WRITE);
 456 }
 457
 458
 459
 460 ///////////////////////////////////////////////////////////////////////////////
 461 u32  GPU_readData(void)
 462 {
 463         const u16 *VIDEO_END=(GPU_FrameBuffer+(FRAME_BUFFER_SIZE/2)-1);
 464 #ifdef DEBUG_ANALYSIS
 465         dbg_anacnt_GPU_readData++;
 466 #endif
 467         pcsx4all_prof_pause(PCSX4ALL_PROF_CPU);
 468         pcsx4all_prof_start_with_pause(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_HW_READ);
 469         GPU_GP1 &= ~0x14000000;
 470         if (FrameToRead)
 471         {
 472                 if ((&pvram[px])>(VIDEO_END)) pvram-=512*1024;
 473                 GP0 = pvram[px];
 474                 if (++px>=x_end)
 475                 {
 476                         px = 0;
 477                         pvram += 1024;
 478                         if (++py>=y_end)
 479                         {
 480                                 FrameToRead = 0;
 481                                 GPU_GP1 &= ~0x08000000;
 482                         }
 483                 }
 484                 if ((&pvram[px])>(VIDEO_END)) pvram-=512*1024;
 485                 GP0 |= pvram[px]<<16;
 486                 if (++px>=x_end)
 487                 {
 488                         px = 0;
 489                         pvram +=1024;
 490                         if (++py>=y_end)
 491                         {
 492                                 FrameToRead = 0;
 493                                 GPU_GP1 &= ~0x08000000;
 494                         }
 495                 }
 496
 497         }
 498         GPU_GP1 |= 0x14000000;
 499
 500         pcsx4all_prof_end_with_resume(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_HW_READ);
 501         pcsx4all_prof_resume(PCSX4ALL_PROF_CPU);
 502         return (GP0);
 503 }
 504
 505 ///////////////////////////////////////////////////////////////////////////////
 506 u32     GPU_readStatus(void)
 507 {
 508 #ifdef DEBUG_ANALYSIS
 509         dbg_anacnt_GPU_readStatus++;
 510 #endif
 511         return GPU_GP1;
 512 }
 513
 514 ///////////////////////////////////////////////////////////////////////////////
 515 void  GPU_writeStatus(u32 data)
 516 {
 517 #ifdef DEBUG_ANALYSIS
 518         dbg_anacnt_GPU_writeStatus++;
 519 #endif
 520         pcsx4all_prof_pause(PCSX4ALL_PROF_CPU);
 521         pcsx4all_prof_start_with_pause(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_HW_WRITE);
 522         switch (data >> 24) {
 523         case 0x00:
 524                 gpuReset();
 525                 break;
 526         case 0x01:
 527                 GPU_GP1 &= ~0x08000000;
 528                 PacketCount = FrameToRead = FrameToWrite = 0;
 529                 break;
 530         case 0x02:
 531                 GPU_GP1 &= ~0x08000000;
 532                 PacketCount = FrameToRead = FrameToWrite = 0;
 533                 break;
 534         case 0x03:
 535                 GPU_GP1 = (GPU_GP1 & ~0x00800000) | ((data & 1) << 23);
 536                 break;
 537         case 0x04:
 538                 if (data == 0x04000000)
 539                 PacketCount = 0;
 540                 GPU_GP1 = (GPU_GP1 & ~0x60000000) | ((data & 3) << 29);
 541                 break;
 542         case 0x05:
 543                 DisplayArea[0] = (data & 0x000003FF); //(short)(data & 0x3ff);
 544                 DisplayArea[1] = ((data & 0x0007FC00)>>10); //(data & 0x000FFC00) >> 10; //(short)((data>>10)&0x1ff);
 545                 fb_dirty = true;
 546                 break;
 547         case 0x07:
 548                 DisplayArea[4] = data & 0x000003FF; //(short)(data & 0x3ff);
 549                 DisplayArea[5] = (data & 0x000FFC00) >> 10; //(short)((data>>10) & 0x3ff);
 550                 fb_dirty = true;
 551                 break;
 552         case 0x08:
 553                 {
 554                         GPU_GP1 = (GPU_GP1 & ~0x007F0000) | ((data & 0x3F) << 17) | ((data & 0x40) << 10);
 555                         static u32 HorizontalResolution[8] = { 256, 368, 320, 384, 512, 512, 640, 640 };
 556                         DisplayArea[2] = HorizontalResolution[(GPU_GP1 >> 16) & 7];
 557                         static u32 VerticalResolution[4] = { 240, 480, 256, 480 };
 558                         DisplayArea[3] = VerticalResolution[(GPU_GP1 >> 19) & 3];
 559                         isPAL = (data & 0x08) ? true : false; // if 1 - PAL mode, else NTSC
 560                 }
 561                 fb_dirty = true;
 562                 break;
 563         case 0x10:
 564                 switch (data & 0xffff) {
 565                 case 0:
 566                 case 1:
 567                 case 3:
 568                         GP0 = (DrawingArea[1] << 10) | DrawingArea[0];
 569                         break;
 570                 case 4:
 571                         GP0 = ((DrawingArea[3]-1) << 10) | (DrawingArea[2]-1);
 572                         break;
 573                 case 6:
 574                 case 5:
 575                         GP0 = (DrawingOffset[1] << 11) | DrawingOffset[0];
 576                         break;
 577                 case 7:
 578                         GP0 = 2;
 579                         break;
 580                 default:
 581                         GP0 = 0;
 582                 }
 583                 break;
 584         }
 585         pcsx4all_prof_end_with_resume(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_HW_WRITE);
 586         pcsx4all_prof_resume(PCSX4ALL_PROF_CPU);
 587 }
 588
 589 #ifndef REARMED
 590
 591 // Blitting functions
 592 #include "gpu_blit.h"
 593
 594 INLINE void gpuVideoOutput(void)
 595 {
 596         static s16 old_res_horz, old_res_vert, old_rgb24;
 597         s16 h0, x0, y0, w0, h1;
 598
 599         x0 = DisplayArea[0];
 600         y0 = DisplayArea[1];
 601
 602         w0 = DisplayArea[2];
 603         h0 = DisplayArea[3];  // video mode
 604
 605         h1 = DisplayArea[5] - DisplayArea[4]; // display needed
 606         if (h0 == 480) h1 = Min2(h1*2,480);
 607
 608         u16* dest_screen16 = SCREEN;
 609         u16* src_screen16  = &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(x0,y0)];
 610         u32 isRGB24 = (GPU_GP1 & 0x00200000 ? 32 : 0);
 611
 612         /* Clear the screen if resolution changed to prevent interlacing and clipping to clash */
 613         if( (w0 != old_res_horz || h1 != old_res_vert || (s16)isRGB24 != old_rgb24) )
 614         {
 615                 // Update old resolution
 616                 old_res_horz = w0;
 617                 old_res_vert = h1;
 618                 old_rgb24 = (s16)isRGB24;
 619                 // Finally, clear the screen for this special case
 620                 video_clear();
 621         }
 622
 623         //  Height centering
 624         int sizeShift = 1;
 625         if(h0==256) h0 = 240; else if(h0==480) sizeShift = 2;
 626         if(h1>h0) { src_screen16 += ((h1-h0)>>sizeShift)*1024; h1 = h0; }
 627         else if(h1<h0) dest_screen16 += ((h0-h1)>>sizeShift)*VIDEO_WIDTH;
 628
 629         /* Main blitter */
 630         int incY = (h0==480) ? 2 : 1;
 631         h0=(h0==480 ? 2048 : 1024);
 632
 633         if (!progressInterlace)
 634         {
 635                 const int li=linesInterlace;
 636                 switch ( w0 )
 637                 {
 638                         case 256:
 639                                 for(int y1=y0+h1; y0<y1; y0+=incY)
 640                                 {
 641                                         if( 0 == (y0&li) ) GPU_BlitWWDWW(       src_screen16,   dest_screen16, isRGB24);
 642                                         dest_screen16 += VIDEO_WIDTH;
 643                                         src_screen16  += h0;
 644                                 }
 645                                 break;
 646                         case 368:
 647                                 for(int y1=y0+h1; y0<y1; y0+=incY)
 648                                 {
 649                                         if( 0 == (y0&li) ) GPU_BlitWWWWWWWWS(   src_screen16,   dest_screen16, isRGB24, 4);
 650                                         dest_screen16 += VIDEO_WIDTH;
 651                                         src_screen16  += h0;
 652                                 }
 653                                 break;
 654                         case 320:
 655                                 for(int y1=y0+h1; y0<y1; y0+=incY)
 656                                 {
 657                                         if( 0 == (y0&li) ) GPU_BlitWW(  src_screen16,   dest_screen16, isRGB24);
 658                                         dest_screen16 += VIDEO_WIDTH;
 659                                         src_screen16  += h0;
 660                                 }
 661                                 break;
 662                         case 384:
 663                                 for(int y1=y0+h1; y0<y1; y0+=incY)
 664                                 {
 665                                         if( 0 == (y0&li) ) GPU_BlitWWWWWS(      src_screen16,   dest_screen16, isRGB24);
 666                                         dest_screen16 += VIDEO_WIDTH;
 667                                         src_screen16  += h0;
 668                                 }
 669                                 break;
 670                         case 512:
 671                                 for(int y1=y0+h1; y0<y1; y0+=incY)
 672                                 {
 673                                         if( 0 == (y0&li) ) GPU_BlitWWSWWSWS(    src_screen16, dest_screen16, isRGB24);
 674                                         dest_screen16 += VIDEO_WIDTH;
 675                                         src_screen16  += h0;
 676                                 }
 677                                 break;
 678                         case 640:
 679                                 for(int y1=y0+h1; y0<y1; y0+=incY)
 680                                 {
 681                                         if( 0 == (y0&li) ) GPU_BlitWS(  src_screen16, dest_screen16, isRGB24);
 682                                         dest_screen16 += VIDEO_WIDTH;
 683                                         src_screen16  += h0;
 684                                 }
 685                                 break;
 686                 }
 687         }
 688         else
 689         {
 690                 const int li=linesInterlace;
 691                 bool flag=progressInterlace_flag; /* progressive interlace */
 692                 switch ( w0 )
 693                 {
 694                         case 256:
 695                                 for(int y1=y0+h1; y0<y1; y0+=incY)
 696                                 {
 697                                         if(( 0 == (y0&li) ) && (flag=!flag)) GPU_BlitWWDWW(     src_screen16,   dest_screen16, isRGB24);
 698                                         dest_screen16 += VIDEO_WIDTH;
 699                                         src_screen16  += h0;
 700                                 }
 701                                 break;
 702                         case 368:
 703                                 for(int y1=y0+h1; y0<y1; y0+=incY)
 704                                 {
 705                                         if(( 0 == (y0&li) ) && (flag=!flag)) GPU_BlitWWWWWWWWS( src_screen16,   dest_screen16, isRGB24, 4);
 706                                         dest_screen16 += VIDEO_WIDTH;
 707                                         src_screen16  += h0;
 708                                 }
 709                                 break;
 710                         case 320:
 711                                 for(int y1=y0+h1; y0<y1; y0+=incY)
 712                                 {
 713                                         if(( 0 == (y0&li) ) && (flag=!flag)) GPU_BlitWW(        src_screen16,   dest_screen16, isRGB24);
 714                                         dest_screen16 += VIDEO_WIDTH;
 715                                         src_screen16  += h0;
 716                                 }
 717                                 break;
 718                         case 384:
 719                                 for(int y1=y0+h1; y0<y1; y0+=incY)
 720                                 {
 721                                         if(( 0 == (y0&li) ) && (flag=!flag)) GPU_BlitWWWWWS(    src_screen16,   dest_screen16, isRGB24);
 722                                         dest_screen16 += VIDEO_WIDTH;
 723                                         src_screen16  += h0;
 724                                 }
 725                                 break;
 726                         case 512:
 727                                 for(int y1=y0+h1; y0<y1; y0+=incY)
 728                                 {
 729                                         if(( 0 == (y0&li) ) && (flag=!flag)) GPU_BlitWWSWWSWS(  src_screen16, dest_screen16, isRGB24);
 730                                         dest_screen16 += VIDEO_WIDTH;
 731                                         src_screen16  += h0;
 732                                 }
 733                                 break;
 734                         case 640:
 735                                 for(int y1=y0+h1; y0<y1; y0+=incY)
 736                                 {
 737                                         if(( 0 == (y0&li) ) && (flag=!flag)) GPU_BlitWS(        src_screen16, dest_screen16, isRGB24);
 738                                         dest_screen16 += VIDEO_WIDTH;
 739                                         src_screen16  += h0;
 740                                 }
 741                                 break;
 742                 }
 743                 progressInterlace_flag=!flag;
 744         }
 745         video_flip();
 746 }
 747
 748 ///////////////////////////////////////////////////////////////////////////////
 749 void  GPU_updateLace(void)
 750 {
 751 #ifdef  ENABLE_GPU_LOG_SUPPORT
 752         fprintf(stdout,"GPU_updateLace()\n");
 753 #endif
 754 #ifdef DEBUG_ANALYSIS
 755         dbg_anacnt_GPU_updateLace++;
 756 #endif
 757         pcsx4all_prof_start_with_pause(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_COUNTERS);
 758 #ifdef PROFILER_PCSX4ALL
 759         pcsx4all_prof_frames++;
 760 #endif
 761 #ifdef DEBUG_FRAME
 762         if(isdbg_frame())
 763         {
 764                 static int passed=0;
 765                 if (!passed) dbg_enable();
 766                 else pcsx4all_exit();
 767                 passed++;
 768         }
 769 #endif
 770
 771         // Frame skip table
 772         static const unsigned char skipTable[12][12] =
 773         {
 774                 { 0,0,0,0,0,0,0,0,0,0,0,0 },
 775                 { 0,0,0,0,0,0,0,0,0,0,0,1 },
 776                 { 0,0,0,0,0,1,0,0,0,0,0,1 },
 777                 { 0,0,0,1,0,0,0,1,0,0,0,1 },
 778                 { 0,0,1,0,0,1,0,0,1,0,0,1 },
 779                 { 0,1,0,0,1,0,1,0,0,1,0,1 },
 780                 { 0,1,0,1,0,1,0,1,0,1,0,1 },
 781                 { 0,1,0,1,1,0,1,0,1,1,0,1 },
 782                 { 0,1,1,0,1,1,0,1,1,0,1,1 },
 783                 { 0,1,1,1,0,1,1,1,0,1,1,1 },
 784                 { 0,1,1,1,1,1,0,1,1,1,1,1 },
 785                 { 0,1,1,1,1,1,1,1,1,1,1,1 }
 786         };
 787
 788         // Interlace bit toggle
 789         GPU_GP1 ^= 0x80000000;
 790
 791         // Update display
 792         if ((!skipFrame) && (!isSkip) && (!(((GPU_GP1&0x08000000))||((GPU_GP1&0x00800000)))))
 793         {
 794                 gpuVideoOutput(); // Display updated
 795
 796                 if (DisplayArea[3] == 480)
 797                 {
 798                         if (linesInterlace_user) linesInterlace = 3; // 1/4 of lines
 799                         else linesInterlace = 1; // if 480 we only need half of lines
 800                 }
 801                 else if (linesInterlace != linesInterlace_user)
 802                 {
 803                         linesInterlace = linesInterlace_user; // resolution changed from 480 to lower one
 804                         video_clear();
 805                 }
 806
 807                 // Limit FPS
 808                 if (frameLimit)
 809                 {
 810                         static unsigned next=get_ticks();
 811                         unsigned now=get_ticks();
 812                         if (!skipFrame)
 813                         {
 814                                 if (now<next) wait_ticks(next-now);
 815                         }
 816                         next+=(isPAL?(1000000/50):((unsigned)(1000000.0/59.94)));
 817                 }
 818         }
 819
 820         // Show FPS statistics
 821         if (show_fps)
 822         {
 823                 static u32 real_fps=0;
 824                 static u32 prev=get_ticks();
 825                 static char msg[24]="FPS=000/00 SPD=000%";
 826                 u32 now=get_ticks();
 827                 real_fps++;
 828                 if ((now-prev)>=1000000)
 829                 {
 830                         u32 expected_fps=(isPAL?50:60);
 831                         sprintf(msg,"FPS=%3d/%2d SPD=%3d%%",((real_fps*(12-skipCount))/12),((expected_fps*(12-skipCount))/12),((real_fps*100)/expected_fps));
 832                         prev=now;
 833                         real_fps=0;
 834                 }
 835                 port_printf(5,5,msg);
 836         }
 837
 838         // Update frame-skip
 839         if (!alt_fps)
 840         {
 841                 // Video frame-skip
 842                 skipFrame=skipTable[skipCount][skCount];
 843                 skCount--; if (skCount<0) skCount=11;
 844                 isSkip=skipFrame;
 845         }
 846         else
 847         {
 848                 // Game frame-skip
 849                 if (!isSkip)
 850                 {
 851                         skipFrame=skipTable[skipCount][skCount];
 852                         skCount--; if (skCount<0) skCount=11;
 853                         isSkip=true;
 854                 }
 855         }
 856
 857         pcsx4all_prof_end_with_resume(PCSX4ALL_PROF_GPU,PCSX4ALL_PROF_COUNTERS);
 858 }
 859
 860 #else
 861
 862 #include "../../frontend/plugin_lib.h"
 863
 864 extern "C" {
 865
 866 extern void bgr555_to_rgb565(void *dst, void *src, int bytes);
 867 extern void bgr888_to_rgb888(void *dst, void *src, int bytes);
 868 static const struct rearmed_cbs *cbs;
 869 static void *screen_buf;
 870
 871 static void blit(void)
 872 {
 873         static s16 old_res_horz, old_res_vert, old_rgb24;
 874         s16 isRGB24 = (GPU_GP1 & 0x00200000) ? 1 : 0;
 875         s16 h0, x0, y0, w0, h1;
 876         u16 *srcs;
 877         u8  *dest;
 878
 879         x0 = DisplayArea[0] & ~3; // alignment needed by blitter
 880         y0 = DisplayArea[1];
 881         srcs = &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(x0,y0)];
 882
 883         w0 = DisplayArea[2];
 884         h0 = DisplayArea[3];  // video mode
 885
 886         h1 = DisplayArea[5] - DisplayArea[4]; // display needed
 887         if (h0 == 480) h1 = Min2(h1*2,480);
 888
 889         if (h1 <= 0)
 890                 return;
 891
 892         if (w0 != old_res_horz || h1 != old_res_vert || isRGB24 != old_rgb24)
 893         {
 894                 old_res_horz = w0;
 895                 old_res_vert = h1;
 896                 old_rgb24 = (s16)isRGB24;
 897                 screen_buf = cbs->pl_fbdev_set_mode(w0, h1, isRGB24 ? 24 : 16);
 898         }
 899         dest = (u8 *)screen_buf;
 900
 901         if (isRGB24)
 902         {
 903                 for (; h1-- > 0; dest += w0 * 3, srcs += 1024)
 904                 {
 905                         bgr888_to_rgb888(dest, srcs, w0 * 3);
 906                 }
 907         }
 908         else
 909         {
 910                 for (; h1-- > 0; dest += w0 * 2, srcs += 1024)
 911                 {
 912                         bgr555_to_rgb565(dest, srcs, w0 * 2);
 913                 }
 914         }
 915
 916         screen_buf = cbs->pl_fbdev_flip();
 917 }
 918
 919 void GPU_updateLace(void)
 920 {
 921         // Interlace bit toggle
 922         GPU_GP1 ^= 0x80000000;
 923
 924         if (!fb_dirty || (GPU_GP1&0x08800000))
 925                 return;
 926
 927         if (!isSkip) {
 928                 blit();
 929
 930                 fb_dirty = false;
 931                 if (*cbs->fskip_option)
 932                         isSkip = true;
 933         }
 934         else
 935                 isSkip = false;
 936 }
 937
 938 long GPUopen(unsigned long *, char *, char *)
 939 {
 940         cbs->pl_fbdev_open();
 941         screen_buf = cbs->pl_fbdev_flip();
 942         return 0;
 943 }
 944
 945 long GPUclose(void)
 946 {
 947         cbs->pl_fbdev_close();
 948         return 0;
 949 }
 950
 951 long GPUfreeze(unsigned int ulGetFreezeData, GPUFreeze_t* p2)
 952 {
 953         if (ulGetFreezeData > 1)
 954                 return 0;
 955
 956         return GPU_freeze(ulGetFreezeData, p2);
 957 }
 958
 959 void GPUrearmedCallbacks(const struct rearmed_cbs *cbs_)
 960 {
 961         cbs = cbs_;
 962 }
 963
 964 } /* extern "C" */
 965
 966 #endif