src/Shader/VertexProgram.cpp

   1 // SwiftShader Software Renderer
   2 //
   3 // Copyright(c) 2005-2012 TransGaming Inc.
   4 //
   5 // All rights reserved. No part of this software may be copied, distributed, transmitted,
   6 // transcribed, stored in a retrieval system, translated into any human or computer
   7 // language by any means, or disclosed to third parties without the explicit written
   8 // agreement of TransGaming Inc. Without such an agreement, no rights or licenses, express
   9 // or implied, including but not limited to any patent rights, are granted to you.
  10 //
  11
  12 #include "VertexProgram.hpp"
  13
  14 #include "Renderer.hpp"
  15 #include "VertexShader.hpp"
  16 #include "Vertex.hpp"
  17 #include "Half.hpp"
  18 #include "SamplerCore.hpp"
  19 #include "Debug.hpp"
  20
  21 extern bool localShaderConstants;
  22
  23 namespace sw
  24 {
  25         VertexProgram::VertexProgram(const VertexProcessor::State &state, const VertexShader *shader) : VertexRoutine(state, shader)
  26         {
  27                 ifDepth = 0;
  28                 loopRepDepth = 0;
  29                 breakDepth = 0;
  30                 currentLabel = -1;
  31                 whileTest = false;
  32
  33                 for(int i = 0; i < 2048; i++)
  34                 {
  35                         labelBlock[i] = 0;
  36                 }
  37         }
  38
  39         VertexProgram::~VertexProgram()
  40         {
  41                 for(int i = 0; i < 4; i++)
  42                 {
  43                         delete sampler[i];
  44                 }
  45         }
  46
  47         void VertexProgram::pipeline(Registers &r)
  48         {
  49                 for(int i = 0; i < 4; i++)
  50                 {
  51                         sampler[i] = new SamplerCore(r.constants, state.samplerState[i]);
  52                 }
  53
  54                 if(!state.preTransformed)
  55                 {
  56                         program(r);
  57                 }
  58                 else
  59                 {
  60                         passThrough(r);
  61                 }
  62         }
  63
  64         void VertexProgram::program(Registers &r)
  65         {
  66         //      shader->print("VertexShader-%0.8X.txt", state.shaderID);
  67
  68                 unsigned short version = shader->getVersion();
  69
  70                 r.enableIndex = 0;
  71                 r.stackIndex = 0;
  72
  73                 // Create all call site return blocks up front
  74                 for(int i = 0; i < shader->getLength(); i++)
  75                 {
  76                         const Shader::Instruction *instruction = shader->getInstruction(i);
  77                         Shader::Opcode opcode = instruction->opcode;
  78
  79                         if(opcode == Shader::OPCODE_CALL || opcode == Shader::OPCODE_CALLNZ)
  80                         {
  81                                 const Dst &dst = instruction->dst;
  82
  83                                 ASSERT(callRetBlock[dst.label].size() == dst.callSite);
  84                                 callRetBlock[dst.label].push_back(Nucleus::createBasicBlock());
  85                         }
  86                 }
  87
  88                 for(int i = 0; i < shader->getLength(); i++)
  89                 {
  90                         const Shader::Instruction *instruction = shader->getInstruction(i);
  91                         Shader::Opcode opcode = instruction->opcode;
  92
  93                         if(opcode == Shader::OPCODE_DCL || opcode == Shader::OPCODE_DEF || opcode == Shader::OPCODE_DEFI || opcode == Shader::OPCODE_DEFB)
  94                         {
  95                                 continue;
  96                         }
  97
  98                         Dst dst = instruction->dst;
  99                         Src src0 = instruction->src[0];
 100                         Src src1 = instruction->src[1];
 101                         Src src2 = instruction->src[2];
 102
 103                         bool predicate = instruction->predicate;
 104                         int size = shader->size(opcode);
 105                         Usage usage = instruction->usage;
 106                         unsigned char usageIndex = instruction->usageIndex;
 107                         Control control = instruction->control;
 108                         bool integer = dst.type == Shader::PARAMETER_ADDR;
 109                         bool pp = dst.partialPrecision;
 110
 111                         Vector4f d;
 112                         Vector4f s0;
 113                         Vector4f s1;
 114                         Vector4f s2;
 115
 116                         if(src0.type != Shader::PARAMETER_VOID) s0 = reg(r, src0);
 117                         if(src1.type != Shader::PARAMETER_VOID) s1 = reg(r, src1);
 118                         if(src2.type != Shader::PARAMETER_VOID) s2 = reg(r, src2);
 119
 120                         switch(opcode)
 121                         {
 122                         case Shader::OPCODE_VS_1_0:                                                                             break;
 123                         case Shader::OPCODE_VS_1_1:                                                                             break;
 124                         case Shader::OPCODE_VS_2_0:                                                                             break;
 125                         case Shader::OPCODE_VS_2_x:                                                                             break;
 126                         case Shader::OPCODE_VS_2_sw:                                                                    break;
 127                         case Shader::OPCODE_VS_3_0:                                                                             break;
 128                         case Shader::OPCODE_VS_3_sw:                                                                    break;
 129                         case Shader::OPCODE_DCL:                                                                                break;
 130                         case Shader::OPCODE_DEF:                                                                                break;
 131                         case Shader::OPCODE_DEFI:                                                                               break;
 132                         case Shader::OPCODE_DEFB:                                                                               break;
 133                         case Shader::OPCODE_NOP:                                                                                break;
 134                         case Shader::OPCODE_ABS:                abs(d, s0);                                             break;
 135                         case Shader::OPCODE_ADD:                add(d, s0, s1);                                 break;
 136                         case Shader::OPCODE_CRS:                crs(d, s0, s1);                                 break;
 137                         case Shader::OPCODE_FORWARD1:   forward1(d, s0, s1, s2);                break;
 138                         case Shader::OPCODE_FORWARD2:   forward2(d, s0, s1, s2);                break;
 139                         case Shader::OPCODE_FORWARD3:   forward3(d, s0, s1, s2);                break;
 140                         case Shader::OPCODE_FORWARD4:   forward4(d, s0, s1, s2);                break;
 141                         case Shader::OPCODE_REFLECT1:   reflect1(d, s0, s1);                    break;
 142                         case Shader::OPCODE_REFLECT2:   reflect2(d, s0, s1);                    break;
 143                         case Shader::OPCODE_REFLECT3:   reflect3(d, s0, s1);                    break;
 144                         case Shader::OPCODE_REFLECT4:   reflect4(d, s0, s1);                    break;
 145                         case Shader::OPCODE_REFRACT1:   refract1(d, s0, s1, s2.x);              break;
 146                         case Shader::OPCODE_REFRACT2:   refract2(d, s0, s1, s2.x);              break;
 147                         case Shader::OPCODE_REFRACT3:   refract3(d, s0, s1, s2.x);              break;
 148                         case Shader::OPCODE_REFRACT4:   refract4(d, s0, s1, s2.x);              break;
 149                         case Shader::OPCODE_DP1:                dp1(d, s0, s1);                                 break;
 150                         case Shader::OPCODE_DP2:                dp2(d, s0, s1);                                 break;
 151                         case Shader::OPCODE_DP3:                dp3(d, s0, s1);                                 break;
 152                         case Shader::OPCODE_DP4:                dp4(d, s0, s1);                                 break;
 153                         case Shader::OPCODE_ATT:                att(d, s0, s1);                                 break;
 154                         case Shader::OPCODE_EXP2X:              exp2x(d, s0, pp);                               break;
 155                         case Shader::OPCODE_EXP2:               exp2(d, s0, pp);                                break;
 156                         case Shader::OPCODE_EXPP:               expp(d, s0, version);                   break;
 157                         case Shader::OPCODE_EXP:                exp(d, s0, pp);                                 break;
 158                         case Shader::OPCODE_FRC:                frc(d, s0);                                             break;
 159                         case Shader::OPCODE_TRUNC:      trunc(d, s0);                   break;
 160                         case Shader::OPCODE_FLOOR:      floor(d, s0);                   break;
 161                         case Shader::OPCODE_CEIL:       ceil(d, s0);                    break;
 162                         case Shader::OPCODE_LIT:                lit(d, s0);                                             break;
 163                         case Shader::OPCODE_LOG2X:              log2x(d, s0, pp);                               break;
 164                         case Shader::OPCODE_LOG2:               log2(d, s0, pp);                                break;
 165                         case Shader::OPCODE_LOGP:               logp(d, s0, version);                   break;
 166                         case Shader::OPCODE_LOG:                log(d, s0, pp);                                 break;
 167                         case Shader::OPCODE_LRP:                lrp(d, s0, s1, s2);                             break;
 168                         case Shader::OPCODE_STEP:               step(d, s0, s1);                                break;
 169                         case Shader::OPCODE_SMOOTH:             smooth(d, s0, s1, s2);                  break;
 170                         case Shader::OPCODE_M3X2:               M3X2(r, d, s0, src1);                   break;
 171                         case Shader::OPCODE_M3X3:               M3X3(r, d, s0, src1);                   break;
 172                         case Shader::OPCODE_M3X4:               M3X4(r, d, s0, src1);                   break;
 173                         case Shader::OPCODE_M4X3:               M4X3(r, d, s0, src1);                   break;
 174                         case Shader::OPCODE_M4X4:               M4X4(r, d, s0, src1);                   break;
 175                         case Shader::OPCODE_MAD:                mad(d, s0, s1, s2);                             break;
 176                         case Shader::OPCODE_MAX:                max(d, s0, s1);                                 break;
 177                         case Shader::OPCODE_MIN:                min(d, s0, s1);                                 break;
 178                         case Shader::OPCODE_MOV:                mov(d, s0, integer);                    break;
 179                         case Shader::OPCODE_MOVA:               mov(d, s0);                                             break;
 180                         case Shader::OPCODE_F2B:                f2b(d, s0);                                             break;
 181                         case Shader::OPCODE_B2F:                b2f(d, s0);                                             break;
 182                         case Shader::OPCODE_MUL:                mul(d, s0, s1);                                 break;
 183                         case Shader::OPCODE_NRM2:               nrm2(d, s0, pp);                                break;
 184                         case Shader::OPCODE_NRM3:               nrm3(d, s0, pp);                                break;
 185                         case Shader::OPCODE_NRM4:               nrm4(d, s0, pp);                                break;
 186                         case Shader::OPCODE_POWX:               powx(d, s0, s1, pp);                    break;
 187                         case Shader::OPCODE_POW:                pow(d, s0, s1, pp);                             break;
 188                         case Shader::OPCODE_RCPX:               rcpx(d, s0, pp);                                break;
 189                         case Shader::OPCODE_DIV:                div(d, s0, s1);                                 break;
 190                         case Shader::OPCODE_MOD:                mod(d, s0, s1);                                 break;
 191                         case Shader::OPCODE_RSQX:               rsqx(d, s0, pp);                                break;
 192                         case Shader::OPCODE_SQRT:               sqrt(d, s0, pp);                                break;
 193                         case Shader::OPCODE_RSQ:                rsq(d, s0, pp);                                 break;
 194                         case Shader::OPCODE_LEN2:               len2(d.x, s0, pp);                              break;
 195                         case Shader::OPCODE_LEN3:               len3(d.x, s0, pp);                              break;
 196                         case Shader::OPCODE_LEN4:               len4(d.x, s0, pp);                              break;
 197                         case Shader::OPCODE_DIST1:              dist1(d.x, s0, s1, pp);                 break;
 198                         case Shader::OPCODE_DIST2:              dist2(d.x, s0, s1, pp);                 break;
 199                         case Shader::OPCODE_DIST3:              dist3(d.x, s0, s1, pp);                 break;
 200                         case Shader::OPCODE_DIST4:              dist4(d.x, s0, s1, pp);                 break;
 201                         case Shader::OPCODE_SGE:                step(d, s1, s0);                                break;
 202                         case Shader::OPCODE_SGN:                sgn(d, s0);                                             break;
 203                         case Shader::OPCODE_SINCOS:             sincos(d, s0, pp);                              break;
 204                         case Shader::OPCODE_COS:                cos(d, s0, pp);                                 break;
 205                         case Shader::OPCODE_SIN:                sin(d, s0, pp);                                 break;
 206                         case Shader::OPCODE_TAN:                tan(d, s0);                                             break;
 207                         case Shader::OPCODE_ACOS:               acos(d, s0);                                    break;
 208                         case Shader::OPCODE_ASIN:               asin(d, s0);                                    break;
 209                         case Shader::OPCODE_ATAN:               atan(d, s0);                                    break;
 210                         case Shader::OPCODE_ATAN2:              atan2(d, s0, s1);                               break;
 211                         case Shader::OPCODE_SLT:                slt(d, s0, s1);                                 break;
 212                         case Shader::OPCODE_SUB:                sub(d, s0, s1);                                 break;
 213                         case Shader::OPCODE_BREAK:              BREAK(r);                                               break;
 214                         case Shader::OPCODE_BREAKC:             BREAKC(r, s0, s1, control);             break;
 215                         case Shader::OPCODE_BREAKP:             BREAKP(r, src0);                                break;
 216                         case Shader::OPCODE_CONTINUE:   CONTINUE(r);                                    break;
 217                         case Shader::OPCODE_TEST:               TEST();                                                 break;
 218                         case Shader::OPCODE_CALL:               CALL(r, dst.label, dst.callSite);         break;
 219                         case Shader::OPCODE_CALLNZ:             CALLNZ(r, dst.label, dst.callSite, src0); break;
 220                         case Shader::OPCODE_ELSE:               ELSE(r);                                                break;
 221                         case Shader::OPCODE_ENDIF:              ENDIF(r);                                               break;
 222                         case Shader::OPCODE_ENDLOOP:    ENDLOOP(r);                                             break;
 223                         case Shader::OPCODE_ENDREP:             ENDREP(r);                                              break;
 224                         case Shader::OPCODE_ENDWHILE:   ENDWHILE(r);                                    break;
 225                         case Shader::OPCODE_IF:                 IF(r, src0);                                    break;
 226                         case Shader::OPCODE_IFC:                IFC(r, s0, s1, control);                break;
 227                         case Shader::OPCODE_LABEL:              LABEL(dst.index);                               break;
 228                         case Shader::OPCODE_LOOP:               LOOP(r, src1);                                  break;
 229                         case Shader::OPCODE_REP:                REP(r, src0);                                   break;
 230                         case Shader::OPCODE_WHILE:              WHILE(r, src0);                                 break;
 231                         case Shader::OPCODE_RET:                RET(r);                                                 break;
 232                         case Shader::OPCODE_LEAVE:              LEAVE(r);                                               break;
 233                         case Shader::OPCODE_CMP:                cmp(d, s0, s1, control);                break;
 234                         case Shader::OPCODE_ICMP:               icmp(d, s0, s1, control);               break;
 235                         case Shader::OPCODE_SELECT:             select(d, s0, s1, s2);                  break;
 236                         case Shader::OPCODE_EXTRACT:    extract(d.x, s0, s1.x);                 break;
 237                         case Shader::OPCODE_INSERT:             insert(d, s0, s1.x, s2.x);              break;
 238                         case Shader::OPCODE_ALL:                all(d.x, s0);                                   break;
 239                         case Shader::OPCODE_ANY:                any(d.x, s0);                                   break;
 240                         case Shader::OPCODE_NOT:                not(d, s0);                                             break;
 241                         case Shader::OPCODE_OR:                 or(d.x, s0.x, s1.x);                    break;
 242                         case Shader::OPCODE_XOR:                xor(d.x, s0.x, s1.x);                   break;
 243                         case Shader::OPCODE_AND:                and(d.x, s0.x, s1.x);                   break;
 244                         case Shader::OPCODE_TEXLDL:             TEXLDL(r, d, s0, src1);                 break;
 245                         case Shader::OPCODE_TEX:                TEX(r, d, s0, src1);                    break;
 246                         case Shader::OPCODE_END:                                                                                break;
 247                         default:
 248                                 ASSERT(false);
 249                         }
 250
 251                         if(dst.type != Shader::PARAMETER_VOID && dst.type != Shader::PARAMETER_LABEL && opcode != Shader::OPCODE_NOP)
 252                         {
 253                                 if(dst.integer)
 254                                 {
 255                                         switch(opcode)
 256                                         {
 257                                         case Shader::OPCODE_DIV:
 258                                                 if(dst.x) d.x = Trunc(d.x);
 259                                                 if(dst.y) d.y = Trunc(d.y);
 260                                                 if(dst.z) d.z = Trunc(d.z);
 261                                                 if(dst.w) d.w = Trunc(d.w);
 262                                                 break;
 263                                         default:
 264                                                 break;   // No truncation to integer required when arguments are integer
 265                                         }
 266                                 }
 267
 268                                 if(dst.saturate)
 269                                 {
 270                                         if(dst.x) d.x = Max(d.x, Float4(0.0f));
 271                                         if(dst.y) d.y = Max(d.y, Float4(0.0f));
 272                                         if(dst.z) d.z = Max(d.z, Float4(0.0f));
 273                                         if(dst.w) d.w = Max(d.w, Float4(0.0f));
 274
 275                                         if(dst.x) d.x = Min(d.x, Float4(1.0f));
 276                                         if(dst.y) d.y = Min(d.y, Float4(1.0f));
 277                                         if(dst.z) d.z = Min(d.z, Float4(1.0f));
 278                                         if(dst.w) d.w = Min(d.w, Float4(1.0f));
 279                                 }
 280
 281                                 if(shader->containsDynamicBranching())
 282                                 {
 283                                         Vector4f pDst;   // FIXME: Rename
 284
 285                                         switch(dst.type)
 286                                         {
 287                                         case Shader::PARAMETER_VOID:                                                                                                                                            break;
 288                                         case Shader::PARAMETER_TEMP:
 289                                                 if(dst.rel.type == Shader::PARAMETER_VOID)
 290                                                 {
 291                                                         if(dst.x) pDst.x = r.r[dst.index].x;
 292                                                         if(dst.y) pDst.y = r.r[dst.index].y;
 293                                                         if(dst.z) pDst.z = r.r[dst.index].z;
 294                                                         if(dst.w) pDst.w = r.r[dst.index].w;
 295                                                 }
 296                                                 else
 297                                                 {
 298                                                         Int a = relativeAddress(r, dst);
 299
 300                                                         if(dst.x) pDst.x = r.r[dst.index + a].x;
 301                                                         if(dst.y) pDst.y = r.r[dst.index + a].y;
 302                                                         if(dst.z) pDst.z = r.r[dst.index + a].z;
 303                                                         if(dst.w) pDst.w = r.r[dst.index + a].w;
 304                                                 }
 305                                                 break;
 306                                         case Shader::PARAMETER_ADDR:            pDst = r.a0;                                                                                                    break;
 307                                         case Shader::PARAMETER_RASTOUT:
 308                                                 switch(dst.index)
 309                                                 {
 310                                                 case 0:
 311                                                         if(dst.x) pDst.x = r.o[Pos].x;
 312                                                         if(dst.y) pDst.y = r.o[Pos].y;
 313                                                         if(dst.z) pDst.z = r.o[Pos].z;
 314                                                         if(dst.w) pDst.w = r.o[Pos].w;
 315                                                         break;
 316                                                 case 1:
 317                                                         pDst.x = r.o[Fog].x;
 318                                                         break;
 319                                                 case 2:
 320                                                         pDst.x = r.o[Pts].y;
 321                                                         break;
 322                                                 default:
 323                                                         ASSERT(false);
 324                                                 }
 325                                                 break;
 326                                         case Shader::PARAMETER_ATTROUT:
 327                                                 if(dst.x) pDst.x = r.o[D0 + dst.index].x;
 328                                                 if(dst.y) pDst.y = r.o[D0 + dst.index].y;
 329                                                 if(dst.z) pDst.z = r.o[D0 + dst.index].z;
 330                                                 if(dst.w) pDst.w = r.o[D0 + dst.index].w;
 331                                                 break;
 332                                         case Shader::PARAMETER_TEXCRDOUT:
 333                                 //      case Shader::PARAMETER_OUTPUT:
 334                                                 if(version < 0x0300)
 335                                                 {
 336                                                         if(dst.x) pDst.x = r.o[T0 + dst.index].x;
 337                                                         if(dst.y) pDst.y = r.o[T0 + dst.index].y;
 338                                                         if(dst.z) pDst.z = r.o[T0 + dst.index].z;
 339                                                         if(dst.w) pDst.w = r.o[T0 + dst.index].w;
 340                                                 }
 341                                                 else
 342                                                 {
 343                                                         if(dst.rel.type == Shader::PARAMETER_VOID)   // Not relative
 344                                                         {
 345                                                                 if(dst.x) pDst.x = r.o[dst.index].x;
 346                                                                 if(dst.y) pDst.y = r.o[dst.index].y;
 347                                                                 if(dst.z) pDst.z = r.o[dst.index].z;
 348                                                                 if(dst.w) pDst.w = r.o[dst.index].w;
 349                                                         }
 350                                                         else if(dst.rel.type == Shader::PARAMETER_LOOP)
 351                                                         {
 352                                                                 Int aL = r.aL[r.loopDepth];
 353
 354                                                                 if(dst.x) pDst.x = r.o[dst.index + aL].x;
 355                                                                 if(dst.y) pDst.y = r.o[dst.index + aL].y;
 356                                                                 if(dst.z) pDst.z = r.o[dst.index + aL].z;
 357                                                                 if(dst.w) pDst.w = r.o[dst.index + aL].w;
 358                                                         }
 359                                                         else
 360                                                         {
 361                                                                 Int a = relativeAddress(r, dst);
 362
 363                                                                 if(dst.x) pDst.x = r.o[dst.index + a].x;
 364                                                                 if(dst.y) pDst.y = r.o[dst.index + a].y;
 365                                                                 if(dst.z) pDst.z = r.o[dst.index + a].z;
 366                                                                 if(dst.w) pDst.w = r.o[dst.index + a].w;
 367                                                         }
 368                                                 }
 369                                                 break;
 370                                         case Shader::PARAMETER_LABEL:                                                                                                                                           break;
 371                                         case Shader::PARAMETER_PREDICATE:       pDst = r.p0;                                                                                                    break;
 372                                         case Shader::PARAMETER_INPUT:                                                                                                                                           break;
 373                                         default:
 374                                                 ASSERT(false);
 375                                         }
 376
 377                                         Int4 enable = enableMask(r, instruction);
 378
 379                                         Int4 xEnable = enable;
 380                                         Int4 yEnable = enable;
 381                                         Int4 zEnable = enable;
 382                                         Int4 wEnable = enable;
 383
 384                                         if(predicate)
 385                                         {
 386                                                 unsigned char pSwizzle = instruction->predicateSwizzle;
 387
 388                                                 Float4 xPredicate = r.p0[(pSwizzle >> 0) & 0x03];
 389                                                 Float4 yPredicate = r.p0[(pSwizzle >> 2) & 0x03];
 390                                                 Float4 zPredicate = r.p0[(pSwizzle >> 4) & 0x03];
 391                                                 Float4 wPredicate = r.p0[(pSwizzle >> 6) & 0x03];
 392
 393                                                 if(!instruction->predicateNot)
 394                                                 {
 395                                                         if(dst.x) xEnable = xEnable & As<Int4>(xPredicate);
 396                                                         if(dst.y) yEnable = yEnable & As<Int4>(yPredicate);
 397                                                         if(dst.z) zEnable = zEnable & As<Int4>(zPredicate);
 398                                                         if(dst.w) wEnable = wEnable & As<Int4>(wPredicate);
 399                                                 }
 400                                                 else
 401                                                 {
 402                                                         if(dst.x) xEnable = xEnable & ~As<Int4>(xPredicate);
 403                                                         if(dst.y) yEnable = yEnable & ~As<Int4>(yPredicate);
 404                                                         if(dst.z) zEnable = zEnable & ~As<Int4>(zPredicate);
 405                                                         if(dst.w) wEnable = wEnable & ~As<Int4>(wPredicate);
 406                                                 }
 407                                         }
 408
 409                                         if(dst.x) d.x = As<Float4>(As<Int4>(d.x) & xEnable);
 410                                         if(dst.y) d.y = As<Float4>(As<Int4>(d.y) & yEnable);
 411                                         if(dst.z) d.z = As<Float4>(As<Int4>(d.z) & zEnable);
 412                                         if(dst.w) d.w = As<Float4>(As<Int4>(d.w) & wEnable);
 413
 414                                         if(dst.x) d.x = As<Float4>(As<Int4>(d.x) | (As<Int4>(pDst.x) & ~xEnable));
 415                                         if(dst.y) d.y = As<Float4>(As<Int4>(d.y) | (As<Int4>(pDst.y) & ~yEnable));
 416                                         if(dst.z) d.z = As<Float4>(As<Int4>(d.z) | (As<Int4>(pDst.z) & ~zEnable));
 417                                         if(dst.w) d.w = As<Float4>(As<Int4>(d.w) | (As<Int4>(pDst.w) & ~wEnable));
 418                                 }
 419
 420                                 switch(dst.type)
 421                                 {
 422                                 case Shader::PARAMETER_VOID:
 423                                         break;
 424                                 case Shader::PARAMETER_TEMP:
 425                                         if(dst.rel.type == Shader::PARAMETER_VOID)
 426                                         {
 427                                                 if(dst.x) r.r[dst.index].x = d.x;
 428                                                 if(dst.y) r.r[dst.index].y = d.y;
 429                                                 if(dst.z) r.r[dst.index].z = d.z;
 430                                                 if(dst.w) r.r[dst.index].w = d.w;
 431                                         }
 432                                         else
 433                                         {
 434                                                 Int a = relativeAddress(r, dst);
 435
 436                                                 if(dst.x) r.r[dst.index + a].x = d.x;
 437                                                 if(dst.y) r.r[dst.index + a].y = d.y;
 438                                                 if(dst.z) r.r[dst.index + a].z = d.z;
 439                                                 if(dst.w) r.r[dst.index + a].w = d.w;
 440                                         }
 441                                         break;
 442                                 case Shader::PARAMETER_ADDR:
 443                                         if(dst.x) r.a0.x = d.x;
 444                                         if(dst.y) r.a0.y = d.y;
 445                                         if(dst.z) r.a0.z = d.z;
 446                                         if(dst.w) r.a0.w = d.w;
 447                                         break;
 448                                 case Shader::PARAMETER_RASTOUT:
 449                                         switch(dst.index)
 450                                         {
 451                                         case 0:
 452                                                 if(dst.x) r.o[Pos].x = d.x;
 453                                                 if(dst.y) r.o[Pos].y = d.y;
 454                                                 if(dst.z) r.o[Pos].z = d.z;
 455                                                 if(dst.w) r.o[Pos].w = d.w;
 456                                                 break;
 457                                         case 1:
 458                                                 r.o[Fog].x = d.x;
 459                                                 break;
 460                                         case 2:
 461                                                 r.o[Pts].y = d.x;
 462                                                 break;
 463                                         default:        ASSERT(false);
 464                                         }
 465                                         break;
 466                                 case Shader::PARAMETER_ATTROUT:
 467                                         if(dst.x) r.o[D0 + dst.index].x = d.x;
 468                                         if(dst.y) r.o[D0 + dst.index].y = d.y;
 469                                         if(dst.z) r.o[D0 + dst.index].z = d.z;
 470                                         if(dst.w) r.o[D0 + dst.index].w = d.w;
 471                                         break;
 472                                 case Shader::PARAMETER_TEXCRDOUT:
 473                         //      case Shader::PARAMETER_OUTPUT:
 474                                         if(version < 0x0300)
 475                                         {
 476                                                 if(dst.x) r.o[T0 + dst.index].x = d.x;
 477                                                 if(dst.y) r.o[T0 + dst.index].y = d.y;
 478                                                 if(dst.z) r.o[T0 + dst.index].z = d.z;
 479                                                 if(dst.w) r.o[T0 + dst.index].w = d.w;
 480                                         }
 481                                         else
 482                                         {
 483                                                 if(dst.rel.type == Shader::PARAMETER_VOID)   // Not relative
 484                                                 {
 485                                                         if(dst.x) r.o[dst.index].x = d.x;
 486                                                         if(dst.y) r.o[dst.index].y = d.y;
 487                                                         if(dst.z) r.o[dst.index].z = d.z;
 488                                                         if(dst.w) r.o[dst.index].w = d.w;
 489                                                 }
 490                                                 else if(dst.rel.type == Shader::PARAMETER_LOOP)
 491                                                 {
 492                                                         Int aL = r.aL[r.loopDepth];
 493
 494                                                         if(dst.x) r.o[dst.index + aL].x = d.x;
 495                                                         if(dst.y) r.o[dst.index + aL].y = d.y;
 496                                                         if(dst.z) r.o[dst.index + aL].z = d.z;
 497                                                         if(dst.w) r.o[dst.index + aL].w = d.w;
 498                                                 }
 499                                                 else
 500                                                 {
 501                                                         Int a = relativeAddress(r, dst);
 502
 503                                                         if(dst.x) r.o[dst.index + a].x = d.x;
 504                                                         if(dst.y) r.o[dst.index + a].y = d.y;
 505                                                         if(dst.z) r.o[dst.index + a].z = d.z;
 506                                                         if(dst.w) r.o[dst.index + a].w = d.w;
 507                                                 }
 508                                         }
 509                                         break;
 510                                 case Shader::PARAMETER_LABEL:                                                                                                                                           break;
 511                                 case Shader::PARAMETER_PREDICATE:       r.p0 = d;                                                                                                               break;
 512                                 case Shader::PARAMETER_INPUT:                                                                                                                                           break;
 513                                 default:
 514                                         ASSERT(false);
 515                                 }
 516                         }
 517                 }
 518
 519                 if(currentLabel != -1)
 520                 {
 521                         Nucleus::setInsertBlock(returnBlock);
 522                 }
 523         }
 524
 525         void VertexProgram::passThrough(Registers &r)
 526         {
 527                 if(shader)
 528                 {
 529                         for(int i = 0; i < 12; i++)
 530                         {
 531                                 unsigned char usage = shader->output[i][0].usage;
 532                                 unsigned char index = shader->output[i][0].index;
 533
 534                                 switch(usage)
 535                                 {
 536                                 case 0xFF:
 537                                         continue;
 538                                 case Shader::USAGE_PSIZE:
 539                                         r.o[i].y = r.v[i].x;
 540                                         break;
 541                                 case Shader::USAGE_TEXCOORD:
 542                                         r.o[i].x = r.v[i].x;
 543                                         r.o[i].y = r.v[i].y;
 544                                         r.o[i].z = r.v[i].z;
 545                                         r.o[i].w = r.v[i].w;
 546                                         break;
 547                                 case Shader::USAGE_POSITION:
 548                                         r.o[i].x = r.v[i].x;
 549                                         r.o[i].y = r.v[i].y;
 550                                         r.o[i].z = r.v[i].z;
 551                                         r.o[i].w = r.v[i].w;
 552                                         break;
 553                                 case Shader::USAGE_COLOR:
 554                                         r.o[i].x = r.v[i].x;
 555                                         r.o[i].y = r.v[i].y;
 556                                         r.o[i].z = r.v[i].z;
 557                                         r.o[i].w = r.v[i].w;
 558                                         break;
 559                                 case Shader::USAGE_FOG:
 560                                         r.o[i].x = r.v[i].x;
 561                                         break;
 562                                 default:
 563                                         ASSERT(false);
 564                                 }
 565                         }
 566                 }
 567                 else
 568                 {
 569                         r.o[Pos].x = r.v[PositionT].x;
 570                         r.o[Pos].y = r.v[PositionT].y;
 571                         r.o[Pos].z = r.v[PositionT].z;
 572                         r.o[Pos].w = r.v[PositionT].w;
 573
 574                         for(int i = 0; i < 2; i++)
 575                         {
 576                                 r.o[D0 + i].x = r.v[Color0 + i].x;
 577                                 r.o[D0 + i].y = r.v[Color0 + i].y;
 578                                 r.o[D0 + i].z = r.v[Color0 + i].z;
 579                                 r.o[D0 + i].w = r.v[Color0 + i].w;
 580                         }
 581
 582                         for(int i = 0; i < 8; i++)
 583                         {
 584                                 r.o[T0 + i].x = r.v[TexCoord0 + i].x;
 585                                 r.o[T0 + i].y = r.v[TexCoord0 + i].y;
 586                                 r.o[T0 + i].z = r.v[TexCoord0 + i].z;
 587                                 r.o[T0 + i].w = r.v[TexCoord0 + i].w;
 588                         }
 589
 590                         r.o[Pts].y = r.v[PointSize].x;
 591                 }
 592         }
 593
 594         Vector4f VertexProgram::reg(Registers &r, const Src &src, int offset)
 595         {
 596                 int i = src.index + offset;
 597
 598                 Vector4f reg;
 599
 600                 switch(src.type)
 601                 {
 602                 case Shader::PARAMETER_TEMP:
 603                         if(src.rel.type == Shader::PARAMETER_VOID)
 604                         {
 605                                 reg = r.r[i];
 606                         }
 607                         else
 608                         {
 609                                 reg = r.r[i + relativeAddress(r, src)];
 610                         }
 611                         break;
 612                 case Shader::PARAMETER_CONST:
 613                         reg = readConstant(r, src, offset);
 614                         break;
 615                 case Shader::PARAMETER_INPUT:
 616             if(src.rel.type == Shader::PARAMETER_VOID)
 617                         {
 618                                 reg = r.v[i];
 619                         }
 620                         else
 621                         {
 622                                 reg = r.v[i + relativeAddress(r, src)];
 623                         }
 624             break;
 625                 case Shader::PARAMETER_VOID:                    return r.r[0];   // Dummy
 626                 case Shader::PARAMETER_FLOAT4LITERAL:
 627                         reg.x = Float4(src.value[0]);
 628                         reg.y = Float4(src.value[1]);
 629                         reg.z = Float4(src.value[2]);
 630                         reg.w = Float4(src.value[3]);
 631                         break;
 632                 case Shader::PARAMETER_ADDR:                    reg = r.a0;             break;
 633                 case Shader::PARAMETER_CONSTBOOL:               return r.r[0];   // Dummy
 634                 case Shader::PARAMETER_CONSTINT:                return r.r[0];   // Dummy
 635                 case Shader::PARAMETER_LOOP:                    return r.r[0];   // Dummy
 636                 case Shader::PARAMETER_PREDICATE:               return r.r[0];   // Dummy
 637                 case Shader::PARAMETER_SAMPLER:
 638                         if(src.rel.type == Shader::PARAMETER_VOID)
 639                         {
 640                                 reg.x = As<Float4>(Int4(i));
 641                         }
 642                         else if(src.rel.type == Shader::PARAMETER_TEMP)
 643                         {
 644                                 reg.x = As<Float4>(Int4(i) + RoundInt(r.r[src.rel.index].x));
 645                         }
 646                         return reg;
 647                 case Shader::PARAMETER_OUTPUT:
 648             if(src.rel.type == Shader::PARAMETER_VOID)
 649                         {
 650                                 reg = r.o[i];
 651                         }
 652                         else
 653                         {
 654                                 reg = r.o[i + relativeAddress(r, src)];
 655                         }
 656                         break;
 657                 default:
 658                         ASSERT(false);
 659                 }
 660
 661                 const Float4 &x = reg[(src.swizzle >> 0) & 0x3];
 662                 const Float4 &y = reg[(src.swizzle >> 2) & 0x3];
 663                 const Float4 &z = reg[(src.swizzle >> 4) & 0x3];
 664                 const Float4 &w = reg[(src.swizzle >> 6) & 0x3];
 665
 666                 Vector4f mod;
 667
 668                 switch(src.modifier)
 669                 {
 670                 case Shader::MODIFIER_NONE:
 671                         mod.x = x;
 672                         mod.y = y;
 673                         mod.z = z;
 674                         mod.w = w;
 675                         break;
 676                 case Shader::MODIFIER_NEGATE:
 677                         mod.x = -x;
 678                         mod.y = -y;
 679                         mod.z = -z;
 680                         mod.w = -w;
 681                         break;
 682                 case Shader::MODIFIER_ABS:
 683                         mod.x = Abs(x);
 684                         mod.y = Abs(y);
 685                         mod.z = Abs(z);
 686                         mod.w = Abs(w);
 687                         break;
 688                 case Shader::MODIFIER_ABS_NEGATE:
 689                         mod.x = -Abs(x);
 690                         mod.y = -Abs(y);
 691                         mod.z = -Abs(z);
 692                         mod.w = -Abs(w);
 693                         break;
 694                 case Shader::MODIFIER_NOT:
 695                         mod.x = As<Float4>(As<Int4>(x) ^ Int4(0xFFFFFFFF));
 696                         mod.y = As<Float4>(As<Int4>(y) ^ Int4(0xFFFFFFFF));
 697                         mod.z = As<Float4>(As<Int4>(z) ^ Int4(0xFFFFFFFF));
 698                         mod.w = As<Float4>(As<Int4>(w) ^ Int4(0xFFFFFFFF));
 699                         break;
 700                 default:
 701                         ASSERT(false);
 702                 }
 703
 704                 return mod;
 705         }
 706
 707         Vector4f VertexProgram::readConstant(Registers &r, const Src &src, int offset)
 708         {
 709                 Vector4f c;
 710
 711                 int i = src.index + offset;
 712
 713                 if(src.rel.type == Shader::PARAMETER_VOID)   // Not relative
 714                 {
 715                         c.x = c.y = c.z = c.w = *Pointer<Float4>(r.data + OFFSET(DrawData,vs.c[i]));
 716
 717                         c.x = c.x.xxxx;
 718                         c.y = c.y.yyyy;
 719                         c.z = c.z.zzzz;
 720                         c.w = c.w.wwww;
 721
 722                         if(localShaderConstants)   // Constant may be known at compile time
 723                         {
 724                                 for(int j = 0; j < shader->getLength(); j++)
 725                                 {
 726                                         const Shader::Instruction &instruction = *shader->getInstruction(j);
 727
 728                                         if(instruction.opcode == Shader::OPCODE_DEF)
 729                                         {
 730                                                 if(instruction.dst.index == i)
 731                                                 {
 732                                                         c.x = Float4(instruction.src[0].value[0]);
 733                                                         c.y = Float4(instruction.src[0].value[1]);
 734                                                         c.z = Float4(instruction.src[0].value[2]);
 735                                                         c.w = Float4(instruction.src[0].value[3]);
 736
 737                                                         break;
 738                                                 }
 739                                         }
 740                                 }
 741                         }
 742                 }
 743                 else if(src.rel.type == Shader::PARAMETER_LOOP)
 744                 {
 745                         Int loopCounter = r.aL[r.loopDepth];
 746
 747                         c.x = c.y = c.z = c.w = *Pointer<Float4>(r.data + OFFSET(DrawData,vs.c[i]) + loopCounter * 16);
 748
 749                         c.x = c.x.xxxx;
 750                         c.y = c.y.yyyy;
 751                         c.z = c.z.zzzz;
 752                         c.w = c.w.wwww;
 753                 }
 754                 else
 755                 {
 756                         if(src.rel.deterministic)
 757                         {
 758                                 Int a = relativeAddress(r, src);
 759
 760                                 c.x = c.y = c.z = c.w = *Pointer<Float4>(r.data + OFFSET(DrawData,vs.c[i]) + a * 16);
 761
 762                                 c.x = c.x.xxxx;
 763                                 c.y = c.y.yyyy;
 764                                 c.z = c.z.zzzz;
 765                                 c.w = c.w.wwww;
 766                         }
 767                         else
 768                         {
 769                                 int component = src.rel.swizzle & 0x03;
 770                                 Float4 a;
 771
 772                                 switch(src.rel.type)
 773                                 {
 774                                 case Shader::PARAMETER_ADDR:   a = r.a0[component]; break;
 775                                 case Shader::PARAMETER_TEMP:   a = r.r[src.rel.index][component]; break;
 776                                 case Shader::PARAMETER_INPUT:  a = r.v[src.rel.index][component]; break;
 777                                 case Shader::PARAMETER_OUTPUT: a = r.o[src.rel.index][component]; break;
 778                                 case Shader::PARAMETER_CONST:  a = *Pointer<Float>(r.data + OFFSET(DrawData,vs.c[src.rel.index][component])); break;
 779                                 default: ASSERT(false);
 780                                 }
 781
 782                                 Int4 index = Int4(i) + RoundInt(a) * Int4(src.rel.scale);
 783
 784                                 index = Min(As<UInt4>(index), UInt4(256));   // Clamp to constant register range, c[256] = {0, 0, 0, 0}
 785
 786                                 Int index0 = Extract(index, 0);
 787                                 Int index1 = Extract(index, 1);
 788                                 Int index2 = Extract(index, 2);
 789                                 Int index3 = Extract(index, 3);
 790
 791                                 c.x = *Pointer<Float4>(r.data + OFFSET(DrawData,vs.c) + index0 * 16, 16);
 792                                 c.y = *Pointer<Float4>(r.data + OFFSET(DrawData,vs.c) + index1 * 16, 16);
 793                                 c.z = *Pointer<Float4>(r.data + OFFSET(DrawData,vs.c) + index2 * 16, 16);
 794                                 c.w = *Pointer<Float4>(r.data + OFFSET(DrawData,vs.c) + index3 * 16, 16);
 795
 796                                 transpose4x4(c.x, c.y, c.z, c.w);
 797                         }
 798                 }
 799
 800                 return c;
 801         }
 802
 803         Int VertexProgram::relativeAddress(Registers &r, const Shader::Parameter &var)
 804         {
 805                 ASSERT(var.rel.deterministic);
 806
 807                 if(var.rel.type == Shader::PARAMETER_TEMP)
 808                 {
 809                         return RoundInt(Extract(r.r[var.rel.index].x, 0)) * var.rel.scale;
 810                 }
 811                 else if(var.rel.type == Shader::PARAMETER_INPUT)
 812                 {
 813                         return RoundInt(Extract(r.v[var.rel.index].x, 0)) * var.rel.scale;
 814                 }
 815                 else if(var.rel.type == Shader::PARAMETER_OUTPUT)
 816                 {
 817                         return RoundInt(Extract(r.o[var.rel.index].x, 0)) * var.rel.scale;
 818                 }
 819                 else if(var.rel.type == Shader::PARAMETER_CONST)
 820                 {
 821                         RValue<Float4> c = *Pointer<Float4>(r.data + OFFSET(DrawData,vs.c[var.rel.index]));
 822
 823                         return RoundInt(Extract(c, 0)) * var.rel.scale;
 824                 }
 825                 else ASSERT(false);
 826
 827                 return 0;
 828         }
 829
 830         Int4 VertexProgram::enableMask(Registers &r, const Shader::Instruction *instruction)
 831         {
 832                 Int4 enable = instruction->analysisBranch ? Int4(r.enableStack[r.enableIndex]) : Int4(0xFFFFFFFF);
 833
 834                 if(shader->containsBreakInstruction() && !whileTest && instruction->analysisBreak)
 835                 {
 836                         enable &= r.enableBreak;
 837                 }
 838
 839                 if(shader->containsContinueInstruction() && !whileTest && instruction->analysisContinue)
 840                 {
 841                         enable &= r.enableContinue;
 842                 }
 843
 844                 if(shader->containsLeaveInstruction() && instruction->analysisLeave)
 845                 {
 846                         enable &= r.enableLeave;
 847                 }
 848
 849                 return enable;
 850         }
 851
 852         void VertexProgram::M3X2(Registers &r, Vector4f &dst, Vector4f &src0, Src &src1)
 853         {
 854                 Vector4f row0 = reg(r, src1, 0);
 855                 Vector4f row1 = reg(r, src1, 1);
 856
 857                 dst.x = dot3(src0, row0);
 858                 dst.y = dot3(src0, row1);
 859         }
 860
 861         void VertexProgram::M3X3(Registers &r, Vector4f &dst, Vector4f &src0, Src &src1)
 862         {
 863                 Vector4f row0 = reg(r, src1, 0);
 864                 Vector4f row1 = reg(r, src1, 1);
 865                 Vector4f row2 = reg(r, src1, 2);
 866
 867                 dst.x = dot3(src0, row0);
 868                 dst.y = dot3(src0, row1);
 869                 dst.z = dot3(src0, row2);
 870         }
 871
 872         void VertexProgram::M3X4(Registers &r, Vector4f &dst, Vector4f &src0, Src &src1)
 873         {
 874                 Vector4f row0 = reg(r, src1, 0);
 875                 Vector4f row1 = reg(r, src1, 1);
 876                 Vector4f row2 = reg(r, src1, 2);
 877                 Vector4f row3 = reg(r, src1, 3);
 878
 879                 dst.x = dot3(src0, row0);
 880                 dst.y = dot3(src0, row1);
 881                 dst.z = dot3(src0, row2);
 882                 dst.w = dot3(src0, row3);
 883         }
 884
 885         void VertexProgram::M4X3(Registers &r, Vector4f &dst, Vector4f &src0, Src &src1)
 886         {
 887                 Vector4f row0 = reg(r, src1, 0);
 888                 Vector4f row1 = reg(r, src1, 1);
 889                 Vector4f row2 = reg(r, src1, 2);
 890
 891                 dst.x = dot4(src0, row0);
 892                 dst.y = dot4(src0, row1);
 893                 dst.z = dot4(src0, row2);
 894         }
 895
 896         void VertexProgram::M4X4(Registers &r, Vector4f &dst, Vector4f &src0, Src &src1)
 897         {
 898                 Vector4f row0 = reg(r, src1, 0);
 899                 Vector4f row1 = reg(r, src1, 1);
 900                 Vector4f row2 = reg(r, src1, 2);
 901                 Vector4f row3 = reg(r, src1, 3);
 902
 903                 dst.x = dot4(src0, row0);
 904                 dst.y = dot4(src0, row1);
 905                 dst.z = dot4(src0, row2);
 906                 dst.w = dot4(src0, row3);
 907         }
 908
 909         void VertexProgram::BREAK(Registers &r)
 910         {
 911                 llvm::BasicBlock *deadBlock = Nucleus::createBasicBlock();
 912                 llvm::BasicBlock *endBlock = loopRepEndBlock[loopRepDepth - 1];
 913
 914                 if(breakDepth == 0)
 915                 {
 916                         r.enableIndex = r.enableIndex - breakDepth;
 917                         Nucleus::createBr(endBlock);
 918                 }
 919                 else
 920                 {
 921                         r.enableBreak = r.enableBreak & ~r.enableStack[r.enableIndex];
 922                         Bool allBreak = SignMask(r.enableBreak) == 0x0;
 923
 924                         r.enableIndex = r.enableIndex - breakDepth;
 925                         branch(allBreak, endBlock, deadBlock);
 926                 }
 927
 928                 Nucleus::setInsertBlock(deadBlock);
 929                 r.enableIndex = r.enableIndex + breakDepth;
 930         }
 931
 932         void VertexProgram::BREAKC(Registers &r, Vector4f &src0, Vector4f &src1, Control control)
 933         {
 934                 Int4 condition;
 935
 936                 switch(control)
 937                 {
 938                 case Shader::CONTROL_GT: condition = CmpNLE(src0.x,  src1.x);   break;
 939                 case Shader::CONTROL_EQ: condition = CmpEQ(src0.x, src1.x);             break;
 940                 case Shader::CONTROL_GE: condition = CmpNLT(src0.x, src1.x);    break;
 941                 case Shader::CONTROL_LT: condition = CmpLT(src0.x,  src1.x);    break;
 942                 case Shader::CONTROL_NE: condition = CmpNEQ(src0.x, src1.x);    break;
 943                 case Shader::CONTROL_LE: condition = CmpLE(src0.x, src1.x);             break;
 944                 default:
 945                         ASSERT(false);
 946                 }
 947
 948                 BREAK(r, condition);
 949         }
 950
 951         void VertexProgram::BREAKP(Registers &r, const Src &predicateRegister)   // FIXME: Factor out parts common with BREAKC
 952         {
 953                 Int4 condition = As<Int4>(r.p0[predicateRegister.swizzle & 0x3]);
 954
 955                 if(predicateRegister.modifier == Shader::MODIFIER_NOT)
 956                 {
 957                         condition = ~condition;
 958                 }
 959
 960                 BREAK(r, condition);
 961         }
 962
 963         void VertexProgram::BREAK(Registers &r, Int4 &condition)
 964         {
 965                 condition &= r.enableStack[r.enableIndex];
 966
 967                 llvm::BasicBlock *continueBlock = Nucleus::createBasicBlock();
 968                 llvm::BasicBlock *endBlock = loopRepEndBlock[loopRepDepth - 1];
 969
 970                 r.enableBreak = r.enableBreak & ~condition;
 971                 Bool allBreak = SignMask(r.enableBreak) == 0x0;
 972
 973                 r.enableIndex = r.enableIndex - breakDepth;
 974                 branch(allBreak, endBlock, continueBlock);
 975
 976                 Nucleus::setInsertBlock(continueBlock);
 977                 r.enableIndex = r.enableIndex + breakDepth;
 978         }
 979
 980         void VertexProgram::CONTINUE(Registers &r)
 981         {
 982                 r.enableContinue = r.enableContinue & ~r.enableStack[r.enableIndex];
 983         }
 984
 985         void VertexProgram::TEST()
 986         {
 987                 whileTest = true;
 988         }
 989
 990         void VertexProgram::CALL(Registers &r, int labelIndex, int callSiteIndex)
 991         {
 992                 if(!labelBlock[labelIndex])
 993                 {
 994                         labelBlock[labelIndex] = Nucleus::createBasicBlock();
 995                 }
 996
 997                 if(callRetBlock[labelIndex].size() > 1)
 998                 {
 999                         r.callStack[r.stackIndex++] = UInt(callSiteIndex);
1000                 }
1001
1002                 Int4 restoreLeave = r.enableLeave;
1003
1004                 Nucleus::createBr(labelBlock[labelIndex]);
1005                 Nucleus::setInsertBlock(callRetBlock[labelIndex][callSiteIndex]);
1006
1007                 r.enableLeave = restoreLeave;
1008         }
1009
1010         void VertexProgram::CALLNZ(Registers &r, int labelIndex, int callSiteIndex, const Src &src)
1011         {
1012                 if(src.type == Shader::PARAMETER_CONSTBOOL)
1013                 {
1014                         CALLNZb(r, labelIndex, callSiteIndex, src);
1015                 }
1016                 else if(src.type == Shader::PARAMETER_PREDICATE)
1017                 {
1018                         CALLNZp(r, labelIndex, callSiteIndex, src);
1019                 }
1020                 else ASSERT(false);
1021         }
1022
1023         void VertexProgram::CALLNZb(Registers &r, int labelIndex, int callSiteIndex, const Src &boolRegister)
1024         {
1025                 Bool condition = (*Pointer<Byte>(r.data + OFFSET(DrawData,vs.b[boolRegister.index])) != Byte(0));   // FIXME
1026
1027                 if(boolRegister.modifier == Shader::MODIFIER_NOT)
1028                 {
1029                         condition = !condition;
1030                 }
1031
1032                 if(!labelBlock[labelIndex])
1033                 {
1034                         labelBlock[labelIndex] = Nucleus::createBasicBlock();
1035                 }
1036
1037                 if(callRetBlock[labelIndex].size() > 1)
1038                 {
1039                         r.callStack[r.stackIndex++] = UInt(callSiteIndex);
1040                 }
1041
1042                 Int4 restoreLeave = r.enableLeave;
1043
1044                 branch(condition, labelBlock[labelIndex], callRetBlock[labelIndex][callSiteIndex]);
1045                 Nucleus::setInsertBlock(callRetBlock[labelIndex][callSiteIndex]);
1046
1047                 r.enableLeave = restoreLeave;
1048         }
1049
1050         void VertexProgram::CALLNZp(Registers &r, int labelIndex, int callSiteIndex, const Src &predicateRegister)
1051         {
1052                 Int4 condition = As<Int4>(r.p0[predicateRegister.swizzle & 0x3]);
1053
1054                 if(predicateRegister.modifier == Shader::MODIFIER_NOT)
1055                 {
1056                         condition = ~condition;
1057                 }
1058
1059                 condition &= r.enableStack[r.enableIndex];
1060
1061                 if(!labelBlock[labelIndex])
1062                 {
1063                         labelBlock[labelIndex] = Nucleus::createBasicBlock();
1064                 }
1065
1066                 if(callRetBlock[labelIndex].size() > 1)
1067                 {
1068                         r.callStack[r.stackIndex++] = UInt(callSiteIndex);
1069                 }
1070
1071                 r.enableIndex++;
1072                 r.enableStack[r.enableIndex] = condition;
1073                 Int4 restoreLeave = r.enableLeave;
1074
1075                 Bool notAllFalse = SignMask(condition) != 0;
1076                 branch(notAllFalse, labelBlock[labelIndex], callRetBlock[labelIndex][callSiteIndex]);
1077                 Nucleus::setInsertBlock(callRetBlock[labelIndex][callSiteIndex]);
1078
1079                 r.enableIndex--;
1080                 r.enableLeave = restoreLeave;
1081         }
1082
1083         void VertexProgram::ELSE(Registers &r)
1084         {
1085                 ifDepth--;
1086
1087                 llvm::BasicBlock *falseBlock = ifFalseBlock[ifDepth];
1088                 llvm::BasicBlock *endBlock = Nucleus::createBasicBlock();
1089
1090                 if(isConditionalIf[ifDepth])
1091                 {
1092                         Int4 condition = ~r.enableStack[r.enableIndex] & r.enableStack[r.enableIndex - 1];
1093                         Bool notAllFalse = SignMask(condition) != 0;
1094
1095                         branch(notAllFalse, falseBlock, endBlock);
1096
1097                         r.enableStack[r.enableIndex] = ~r.enableStack[r.enableIndex] & r.enableStack[r.enableIndex - 1];
1098                 }
1099                 else
1100                 {
1101                         Nucleus::createBr(endBlock);
1102                         Nucleus::setInsertBlock(falseBlock);
1103                 }
1104
1105                 ifFalseBlock[ifDepth] = endBlock;
1106
1107                 ifDepth++;
1108         }
1109
1110         void VertexProgram::ENDIF(Registers &r)
1111         {
1112                 ifDepth--;
1113
1114                 llvm::BasicBlock *endBlock = ifFalseBlock[ifDepth];
1115
1116                 Nucleus::createBr(endBlock);
1117                 Nucleus::setInsertBlock(endBlock);
1118
1119                 if(isConditionalIf[ifDepth])
1120                 {
1121                         breakDepth--;
1122                         r.enableIndex--;
1123                 }
1124         }
1125
1126         void VertexProgram::ENDLOOP(Registers &r)
1127         {
1128                 loopRepDepth--;
1129
1130                 r.aL[r.loopDepth] = r.aL[r.loopDepth] + r.increment[r.loopDepth];   // FIXME: +=
1131
1132                 llvm::BasicBlock *testBlock = loopRepTestBlock[loopRepDepth];
1133                 llvm::BasicBlock *endBlock = loopRepEndBlock[loopRepDepth];
1134
1135                 Nucleus::createBr(testBlock);
1136                 Nucleus::setInsertBlock(endBlock);
1137
1138                 r.loopDepth--;
1139                 r.enableBreak = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
1140         }
1141
1142         void VertexProgram::ENDREP(Registers &r)
1143         {
1144                 loopRepDepth--;
1145
1146                 llvm::BasicBlock *testBlock = loopRepTestBlock[loopRepDepth];
1147                 llvm::BasicBlock *endBlock = loopRepEndBlock[loopRepDepth];
1148
1149                 Nucleus::createBr(testBlock);
1150                 Nucleus::setInsertBlock(endBlock);
1151
1152                 r.loopDepth--;
1153                 r.enableBreak = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
1154         }
1155
1156         void VertexProgram::ENDWHILE(Registers &r)
1157         {
1158                 loopRepDepth--;
1159
1160                 llvm::BasicBlock *testBlock = loopRepTestBlock[loopRepDepth];
1161                 llvm::BasicBlock *endBlock = loopRepEndBlock[loopRepDepth];
1162
1163                 Nucleus::createBr(testBlock);
1164                 Nucleus::setInsertBlock(endBlock);
1165
1166                 r.enableIndex--;
1167                 r.enableBreak = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
1168                 whileTest = false;
1169         }
1170
1171         void VertexProgram::IF(Registers &r, const Src &src)
1172         {
1173                 if(src.type == Shader::PARAMETER_CONSTBOOL)
1174                 {
1175                         IFb(r, src);
1176                 }
1177                 else if(src.type == Shader::PARAMETER_PREDICATE)
1178                 {
1179                         IFp(r, src);
1180                 }
1181                 else
1182                 {
1183                         Int4 condition = As<Int4>(reg(r, src).x);
1184                         IF(r, condition);
1185                 }
1186         }
1187
1188         void VertexProgram::IFb(Registers &r, const Src &boolRegister)
1189         {
1190                 ASSERT(ifDepth < 24 + 4);
1191
1192                 Bool condition = (*Pointer<Byte>(r.data + OFFSET(DrawData,vs.b[boolRegister.index])) != Byte(0));   // FIXME
1193
1194                 if(boolRegister.modifier == Shader::MODIFIER_NOT)
1195                 {
1196                         condition = !condition;
1197                 }
1198
1199                 llvm::BasicBlock *trueBlock = Nucleus::createBasicBlock();
1200                 llvm::BasicBlock *falseBlock = Nucleus::createBasicBlock();
1201
1202                 branch(condition, trueBlock, falseBlock);
1203
1204                 isConditionalIf[ifDepth] = false;
1205                 ifFalseBlock[ifDepth] = falseBlock;
1206
1207                 ifDepth++;
1208         }
1209
1210         void VertexProgram::IFp(Registers &r, const Src &predicateRegister)
1211         {
1212                 Int4 condition = As<Int4>(r.p0[predicateRegister.swizzle & 0x3]);
1213
1214                 if(predicateRegister.modifier == Shader::MODIFIER_NOT)
1215                 {
1216                         condition = ~condition;
1217                 }
1218
1219                 IF(r, condition);
1220         }
1221
1222         void VertexProgram::IFC(Registers &r, Vector4f &src0, Vector4f &src1, Control control)
1223         {
1224                 Int4 condition;
1225
1226                 switch(control)
1227                 {
1228                 case Shader::CONTROL_GT: condition = CmpNLE(src0.x,  src1.x);   break;
1229                 case Shader::CONTROL_EQ: condition = CmpEQ(src0.x, src1.x);             break;
1230                 case Shader::CONTROL_GE: condition = CmpNLT(src0.x, src1.x);    break;
1231                 case Shader::CONTROL_LT: condition = CmpLT(src0.x,  src1.x);    break;
1232                 case Shader::CONTROL_NE: condition = CmpNEQ(src0.x, src1.x);    break;
1233                 case Shader::CONTROL_LE: condition = CmpLE(src0.x, src1.x);             break;
1234                 default:
1235                         ASSERT(false);
1236                 }
1237
1238                 IF(r, condition);
1239         }
1240
1241         void VertexProgram::IF(Registers &r, Int4 &condition)
1242         {
1243                 condition &= r.enableStack[r.enableIndex];
1244
1245                 r.enableIndex++;
1246                 r.enableStack[r.enableIndex] = condition;
1247
1248                 llvm::BasicBlock *trueBlock = Nucleus::createBasicBlock();
1249                 llvm::BasicBlock *falseBlock = Nucleus::createBasicBlock();
1250
1251                 Bool notAllFalse = SignMask(condition) != 0;
1252
1253                 branch(notAllFalse, trueBlock, falseBlock);
1254
1255                 isConditionalIf[ifDepth] = true;
1256                 ifFalseBlock[ifDepth] = falseBlock;
1257
1258                 ifDepth++;
1259                 breakDepth++;
1260         }
1261
1262         void VertexProgram::LABEL(int labelIndex)
1263         {
1264                 if(!labelBlock[labelIndex])
1265                 {
1266                         labelBlock[labelIndex] = Nucleus::createBasicBlock();
1267                 }
1268
1269                 Nucleus::setInsertBlock(labelBlock[labelIndex]);
1270                 currentLabel = labelIndex;
1271         }
1272
1273         void VertexProgram::LOOP(Registers &r, const Src &integerRegister)
1274         {
1275                 r.loopDepth++;
1276
1277                 r.iteration[r.loopDepth] = *Pointer<Int>(r.data + OFFSET(DrawData,vs.i[integerRegister.index][0]));
1278                 r.aL[r.loopDepth] = *Pointer<Int>(r.data + OFFSET(DrawData,vs.i[integerRegister.index][1]));
1279                 r.increment[r.loopDepth] = *Pointer<Int>(r.data + OFFSET(DrawData,vs.i[integerRegister.index][2]));
1280
1281                 // FIXME: Compiles to two instructions?
1282                 If(r.increment[r.loopDepth] == 0)
1283                 {
1284                         r.increment[r.loopDepth] = 1;
1285                 }
1286
1287                 llvm::BasicBlock *loopBlock = Nucleus::createBasicBlock();
1288                 llvm::BasicBlock *testBlock = Nucleus::createBasicBlock();
1289                 llvm::BasicBlock *endBlock = Nucleus::createBasicBlock();
1290
1291                 loopRepTestBlock[loopRepDepth] = testBlock;
1292                 loopRepEndBlock[loopRepDepth] = endBlock;
1293
1294                 // FIXME: jump(testBlock)
1295                 Nucleus::createBr(testBlock);
1296                 Nucleus::setInsertBlock(testBlock);
1297
1298                 branch(r.iteration[r.loopDepth] > 0, loopBlock, endBlock);
1299                 Nucleus::setInsertBlock(loopBlock);
1300
1301                 r.iteration[r.loopDepth] = r.iteration[r.loopDepth] - 1;   // FIXME: --
1302
1303                 loopRepDepth++;
1304                 breakDepth = 0;
1305         }
1306
1307         void VertexProgram::REP(Registers &r, const Src &integerRegister)
1308         {
1309                 r.loopDepth++;
1310
1311                 r.iteration[r.loopDepth] = *Pointer<Int>(r.data + OFFSET(DrawData,vs.i[integerRegister.index][0]));
1312                 r.aL[r.loopDepth] = r.aL[r.loopDepth - 1];
1313
1314                 llvm::BasicBlock *loopBlock = Nucleus::createBasicBlock();
1315                 llvm::BasicBlock *testBlock = Nucleus::createBasicBlock();
1316                 llvm::BasicBlock *endBlock = Nucleus::createBasicBlock();
1317
1318                 loopRepTestBlock[loopRepDepth] = testBlock;
1319                 loopRepEndBlock[loopRepDepth] = endBlock;
1320
1321                 // FIXME: jump(testBlock)
1322                 Nucleus::createBr(testBlock);
1323                 Nucleus::setInsertBlock(testBlock);
1324
1325                 branch(r.iteration[r.loopDepth] > 0, loopBlock, endBlock);
1326                 Nucleus::setInsertBlock(loopBlock);
1327
1328                 r.iteration[r.loopDepth] = r.iteration[r.loopDepth] - 1;   // FIXME: --
1329
1330                 loopRepDepth++;
1331                 breakDepth = 0;
1332         }
1333
1334         void VertexProgram::WHILE(Registers &r, const Src &temporaryRegister)
1335         {
1336                 r.enableIndex++;
1337
1338                 llvm::BasicBlock *loopBlock = Nucleus::createBasicBlock();
1339                 llvm::BasicBlock *testBlock = Nucleus::createBasicBlock();
1340                 llvm::BasicBlock *endBlock = Nucleus::createBasicBlock();
1341
1342                 loopRepTestBlock[loopRepDepth] = testBlock;
1343                 loopRepEndBlock[loopRepDepth] = endBlock;
1344
1345                 Int4 restoreBreak = r.enableBreak;
1346                 Int4 restoreContinue = r.enableContinue;
1347
1348                 // FIXME: jump(testBlock)
1349                 Nucleus::createBr(testBlock);
1350                 Nucleus::setInsertBlock(testBlock);
1351                 r.enableContinue = restoreContinue;
1352
1353                 const Vector4f &src = reg(r, temporaryRegister);
1354                 Int4 condition = As<Int4>(src.x);
1355                 condition &= r.enableStack[r.enableIndex - 1];
1356                 r.enableStack[r.enableIndex] = condition;
1357
1358                 Bool notAllFalse = SignMask(condition) != 0;
1359                 branch(notAllFalse, loopBlock, endBlock);
1360
1361                 Nucleus::setInsertBlock(endBlock);
1362                 r.enableBreak = restoreBreak;
1363
1364                 Nucleus::setInsertBlock(loopBlock);
1365
1366                 loopRepDepth++;
1367                 breakDepth = 0;
1368         }
1369
1370         void VertexProgram::RET(Registers &r)
1371         {
1372                 if(currentLabel == -1)
1373                 {
1374                         returnBlock = Nucleus::createBasicBlock();
1375                         Nucleus::createBr(returnBlock);
1376                 }
1377                 else
1378                 {
1379                         llvm::BasicBlock *unreachableBlock = Nucleus::createBasicBlock();
1380
1381                         if(callRetBlock[currentLabel].size() > 1)   // Pop the return destination from the call stack
1382                         {
1383                                 // FIXME: Encapsulate
1384                                 UInt index = r.callStack[--r.stackIndex];
1385
1386                                 llvm::Value *value = index.loadValue();
1387                                 llvm::Value *switchInst = Nucleus::createSwitch(value, unreachableBlock, (int)callRetBlock[currentLabel].size());
1388
1389                                 for(unsigned int i = 0; i < callRetBlock[currentLabel].size(); i++)
1390                                 {
1391                                         Nucleus::addSwitchCase(switchInst, i, callRetBlock[currentLabel][i]);
1392                                 }
1393                         }
1394                         else if(callRetBlock[currentLabel].size() == 1)   // Jump directly to the unique return destination
1395                         {
1396                                 Nucleus::createBr(callRetBlock[currentLabel][0]);
1397                         }
1398                         else   // Function isn't called
1399                         {
1400                                 Nucleus::createBr(unreachableBlock);
1401                         }
1402
1403                         Nucleus::setInsertBlock(unreachableBlock);
1404                         Nucleus::createUnreachable();
1405                 }
1406         }
1407
1408         void VertexProgram::LEAVE(Registers &r)
1409         {
1410                 r.enableLeave = r.enableLeave & ~r.enableStack[r.enableIndex];
1411
1412                 // FIXME: Return from function if all instances left
1413                 // FIXME: Use enableLeave in other control-flow constructs
1414         }
1415
1416         void VertexProgram::TEXLDL(Registers &r, Vector4f &dst, Vector4f &src0, const Src &src1)
1417         {
1418                 Vector4f tmp;
1419                 sampleTexture(r, tmp, src1, src0.x, src0.y, src0.z, src0.w);
1420
1421                 dst.x = tmp[(src1.swizzle >> 0) & 0x3];
1422                 dst.y = tmp[(src1.swizzle >> 2) & 0x3];
1423                 dst.z = tmp[(src1.swizzle >> 4) & 0x3];
1424                 dst.w = tmp[(src1.swizzle >> 6) & 0x3];
1425         }
1426
1427         void VertexProgram::TEX(Registers &r, Vector4f &dst, Vector4f &src0, const Src &src1)
1428         {
1429                 Float4 lod = Float4(0.0f);
1430                 Vector4f tmp;
1431                 sampleTexture(r, tmp, src1, src0.x, src0.y, src0.z, lod);
1432
1433                 dst.x = tmp[(src1.swizzle >> 0) & 0x3];
1434                 dst.y = tmp[(src1.swizzle >> 2) & 0x3];
1435                 dst.z = tmp[(src1.swizzle >> 4) & 0x3];
1436                 dst.w = tmp[(src1.swizzle >> 6) & 0x3];
1437         }
1438
1439         void VertexProgram::sampleTexture(Registers &r, Vector4f &c, const Src &s, Float4 &u, Float4 &v, Float4 &w, Float4 &q)
1440         {
1441                 if(s.type == Shader::PARAMETER_SAMPLER && s.rel.type == Shader::PARAMETER_VOID)
1442                 {
1443                         Pointer<Byte> texture = r.data + OFFSET(DrawData,mipmap[16]) + s.index * sizeof(Texture);
1444                         sampler[s.index]->sampleTexture(texture, c, u, v, w, q, r.a0, r.a0, false, false, true);
1445                 }
1446                 else
1447                 {
1448                         Int index = As<Int>(Float(reg(r, s).x.x));
1449
1450                         for(int i = 0; i < 16; i++)
1451                         {
1452                                 if(shader->usesSampler(i))
1453                                 {
1454                                         If(index == i)
1455                                         {
1456                                                 Pointer<Byte> texture = r.data + OFFSET(DrawData,mipmap[16]) + i * sizeof(Texture);
1457                                                 sampler[i]->sampleTexture(texture, c, u, v, w, q, r.a0, r.a0, false, false, true);
1458                                                 // FIXME: When the sampler states are the same, we could use one sampler and just index the texture
1459                                         }
1460                                 }
1461                         }
1462                 }
1463         }
1464 }