src/Shader/PixelProgram.cpp

   1 // SwiftShader Software Renderer
   2 //
   3 // Copyright(c) 2015 Google 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 Google 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 "PixelProgram.hpp"
  13 #include "Primitive.hpp"
  14 #include "Renderer.hpp"
  15 #include "SamplerCore.hpp"
  16
  17 namespace sw
  18 {
  19         extern bool postBlendSRGB;
  20         extern bool booleanFaceRegister;
  21         extern bool halfIntegerCoordinates;     // Pixel centers are not at integer coordinates
  22         extern bool fullPixelPositionRegister;
  23
  24         void PixelProgram::setBuiltins(Int &x, Int &y, Float4(&z)[4], Float4 &w)
  25         {
  26                 if(shader->getVersion() >= 0x0300)
  27                 {
  28                         if(shader->vPosDeclared)
  29                         {
  30                                 if(!halfIntegerCoordinates)
  31                                 {
  32                                         vPos.x = Float4(Float(x)) + Float4(0, 1, 0, 1);
  33                                         vPos.y = Float4(Float(y)) + Float4(0, 0, 1, 1);
  34                                 }
  35                                 else
  36                                 {
  37                                         vPos.x = Float4(Float(x)) + Float4(0.5f, 1.5f, 0.5f, 1.5f);
  38                                         vPos.y = Float4(Float(y)) + Float4(0.5f, 0.5f, 1.5f, 1.5f);
  39                                 }
  40
  41                                 if(fullPixelPositionRegister)
  42                                 {
  43                                         vPos.z = z[0]; // FIXME: Centroid?
  44                                         vPos.w = w;    // FIXME: Centroid?
  45                                 }
  46                         }
  47
  48                         if(shader->vFaceDeclared)
  49                         {
  50                                 Float4 area = *Pointer<Float>(primitive + OFFSET(Primitive, area));
  51                                 Float4 face = booleanFaceRegister ? Float4(As<Float4>(CmpNLT(area, Float4(0.0f)))) : area;
  52
  53                                 vFace.x = face;
  54                                 vFace.y = face;
  55                                 vFace.z = face;
  56                                 vFace.w = face;
  57                         }
  58                 }
  59         }
  60
  61         void PixelProgram::applyShader(Int cMask[4])
  62         {
  63                 enableIndex = 0;
  64                 stackIndex = 0;
  65
  66                 if(shader->containsLeaveInstruction())
  67                 {
  68                         enableLeave = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
  69                 }
  70
  71                 for(int i = 0; i < RENDERTARGETS; i++)
  72                 {
  73                         if(state.targetFormat[i] != FORMAT_NULL)
  74                         {
  75                                 oC[i] = Vector4f(0.0f, 0.0f, 0.0f, 0.0f);
  76                         }
  77                 }
  78
  79                 // Create all call site return blocks up front
  80                 for(size_t i = 0; i < shader->getLength(); i++)
  81                 {
  82                         const Shader::Instruction *instruction = shader->getInstruction(i);
  83                         Shader::Opcode opcode = instruction->opcode;
  84
  85                         if(opcode == Shader::OPCODE_CALL || opcode == Shader::OPCODE_CALLNZ)
  86                         {
  87                                 const Dst &dst = instruction->dst;
  88
  89                                 ASSERT(callRetBlock[dst.label].size() == dst.callSite);
  90                                 callRetBlock[dst.label].push_back(Nucleus::createBasicBlock());
  91                         }
  92                 }
  93
  94                 for(size_t i = 0; i < shader->getLength(); i++)
  95                 {
  96                         const Shader::Instruction *instruction = shader->getInstruction(i);
  97                         Shader::Opcode opcode = instruction->opcode;
  98
  99                         if(opcode == Shader::OPCODE_DCL || opcode == Shader::OPCODE_DEF || opcode == Shader::OPCODE_DEFI || opcode == Shader::OPCODE_DEFB)
 100                         {
 101                                 continue;
 102                         }
 103
 104                         const Dst &dst = instruction->dst;
 105                         const Src &src0 = instruction->src[0];
 106                         const Src &src1 = instruction->src[1];
 107                         const Src &src2 = instruction->src[2];
 108                         const Src &src3 = instruction->src[3];
 109                         const Src &src4 = instruction->src[4];
 110
 111                         bool predicate = instruction->predicate;
 112                         Control control = instruction->control;
 113                         bool pp = dst.partialPrecision;
 114                         bool project = instruction->project;
 115                         bool bias = instruction->bias;
 116
 117                         Vector4f d;
 118                         Vector4f s0;
 119                         Vector4f s1;
 120                         Vector4f s2;
 121                         Vector4f s3;
 122                         Vector4f s4;
 123
 124                         if(opcode == Shader::OPCODE_TEXKILL)   // Takes destination as input
 125                         {
 126                                 if(dst.type == Shader::PARAMETER_TEXTURE)
 127                                 {
 128                                         d.x = v[2 + dst.index].x;
 129                                         d.y = v[2 + dst.index].y;
 130                                         d.z = v[2 + dst.index].z;
 131                                         d.w = v[2 + dst.index].w;
 132                                 }
 133                                 else
 134                                 {
 135                                         d = r[dst.index];
 136                                 }
 137                         }
 138
 139                         if(src0.type != Shader::PARAMETER_VOID) s0 = fetchRegisterF(src0);
 140                         if(src1.type != Shader::PARAMETER_VOID) s1 = fetchRegisterF(src1);
 141                         if(src2.type != Shader::PARAMETER_VOID) s2 = fetchRegisterF(src2);
 142                         if(src3.type != Shader::PARAMETER_VOID) s3 = fetchRegisterF(src3);
 143                         if(src4.type != Shader::PARAMETER_VOID) s4 = fetchRegisterF(src4);
 144
 145                         switch(opcode)
 146                         {
 147                         case Shader::OPCODE_PS_2_0:                                                    break;
 148                         case Shader::OPCODE_PS_2_x:                                                    break;
 149                         case Shader::OPCODE_PS_3_0:                                                    break;
 150                         case Shader::OPCODE_DEF:                                                       break;
 151                         case Shader::OPCODE_DCL:                                                       break;
 152                         case Shader::OPCODE_NOP:                                                       break;
 153                         case Shader::OPCODE_MOV:        mov(d, s0);                                    break;
 154                         case Shader::OPCODE_NEG:        neg(d, s0);                                    break;
 155                         case Shader::OPCODE_INEG:       ineg(d, s0);                                   break;
 156                         case Shader::OPCODE_F2B:        f2b(d, s0);                                    break;
 157                         case Shader::OPCODE_B2F:        b2f(d, s0);                                    break;
 158                         case Shader::OPCODE_F2I:        f2i(d, s0);                                    break;
 159                         case Shader::OPCODE_I2F:        i2f(d, s0);                                    break;
 160                         case Shader::OPCODE_F2U:        f2u(d, s0);                                    break;
 161                         case Shader::OPCODE_U2F:        u2f(d, s0);                                    break;
 162                         case Shader::OPCODE_I2B:        i2b(d, s0);                                    break;
 163                         case Shader::OPCODE_B2I:        b2i(d, s0);                                    break;
 164                         case Shader::OPCODE_ADD:        add(d, s0, s1);                                break;
 165                         case Shader::OPCODE_IADD:       iadd(d, s0, s1);                               break;
 166                         case Shader::OPCODE_SUB:        sub(d, s0, s1);                                break;
 167                         case Shader::OPCODE_ISUB:       isub(d, s0, s1);                               break;
 168                         case Shader::OPCODE_MUL:        mul(d, s0, s1);                                break;
 169                         case Shader::OPCODE_IMUL:       imul(d, s0, s1);                               break;
 170                         case Shader::OPCODE_MAD:        mad(d, s0, s1, s2);                            break;
 171                         case Shader::OPCODE_IMAD:       imad(d, s0, s1, s2);                           break;
 172                         case Shader::OPCODE_DP1:        dp1(d, s0, s1);                                break;
 173                         case Shader::OPCODE_DP2:        dp2(d, s0, s1);                                break;
 174                         case Shader::OPCODE_DP2ADD:     dp2add(d, s0, s1, s2);                         break;
 175                         case Shader::OPCODE_DP3:        dp3(d, s0, s1);                                break;
 176                         case Shader::OPCODE_DP4:        dp4(d, s0, s1);                                break;
 177                         case Shader::OPCODE_DET2:       det2(d, s0, s1);                               break;
 178                         case Shader::OPCODE_DET3:       det3(d, s0, s1, s2);                           break;
 179                         case Shader::OPCODE_DET4:       det4(d, s0, s1, s2, s3);                       break;
 180                         case Shader::OPCODE_CMP0:       cmp0(d, s0, s1, s2);                           break;
 181                         case Shader::OPCODE_ICMP:       icmp(d, s0, s1, control);                      break;
 182                         case Shader::OPCODE_UCMP:       ucmp(d, s0, s1, control);                      break;
 183                         case Shader::OPCODE_SELECT:     select(d, s0, s1, s2);                         break;
 184                         case Shader::OPCODE_EXTRACT:    extract(d.x, s0, s1.x);                        break;
 185                         case Shader::OPCODE_INSERT:     insert(d, s0, s1.x, s2.x);                     break;
 186                         case Shader::OPCODE_FRC:        frc(d, s0);                                    break;
 187                         case Shader::OPCODE_TRUNC:      trunc(d, s0);                                  break;
 188                         case Shader::OPCODE_FLOOR:      floor(d, s0);                                  break;
 189                         case Shader::OPCODE_ROUND:      round(d, s0);                                  break;
 190                         case Shader::OPCODE_ROUNDEVEN:  roundEven(d, s0);                              break;
 191                         case Shader::OPCODE_CEIL:       ceil(d, s0);                                   break;
 192                         case Shader::OPCODE_EXP2X:      exp2x(d, s0, pp);                              break;
 193                         case Shader::OPCODE_EXP2:       exp2(d, s0, pp);                               break;
 194                         case Shader::OPCODE_LOG2X:      log2x(d, s0, pp);                              break;
 195                         case Shader::OPCODE_LOG2:       log2(d, s0, pp);                               break;
 196                         case Shader::OPCODE_EXP:        exp(d, s0, pp);                                break;
 197                         case Shader::OPCODE_LOG:        log(d, s0, pp);                                break;
 198                         case Shader::OPCODE_RCPX:       rcpx(d, s0, pp);                               break;
 199                         case Shader::OPCODE_DIV:        div(d, s0, s1);                                break;
 200                         case Shader::OPCODE_IDIV:       idiv(d, s0, s1);                               break;
 201                         case Shader::OPCODE_UDIV:       udiv(d, s0, s1);                               break;
 202                         case Shader::OPCODE_MOD:        mod(d, s0, s1);                                break;
 203                         case Shader::OPCODE_IMOD:       imod(d, s0, s1);                               break;
 204                         case Shader::OPCODE_UMOD:       umod(d, s0, s1);                               break;
 205                         case Shader::OPCODE_SHL:        shl(d, s0, s1);                                break;
 206                         case Shader::OPCODE_ISHR:       ishr(d, s0, s1);                               break;
 207                         case Shader::OPCODE_USHR:       ushr(d, s0, s1);                               break;
 208                         case Shader::OPCODE_RSQX:       rsqx(d, s0, pp);                               break;
 209                         case Shader::OPCODE_SQRT:       sqrt(d, s0, pp);                               break;
 210                         case Shader::OPCODE_RSQ:        rsq(d, s0, pp);                                break;
 211                         case Shader::OPCODE_LEN2:       len2(d.x, s0, pp);                             break;
 212                         case Shader::OPCODE_LEN3:       len3(d.x, s0, pp);                             break;
 213                         case Shader::OPCODE_LEN4:       len4(d.x, s0, pp);                             break;
 214                         case Shader::OPCODE_DIST1:      dist1(d.x, s0, s1, pp);                        break;
 215                         case Shader::OPCODE_DIST2:      dist2(d.x, s0, s1, pp);                        break;
 216                         case Shader::OPCODE_DIST3:      dist3(d.x, s0, s1, pp);                        break;
 217                         case Shader::OPCODE_DIST4:      dist4(d.x, s0, s1, pp);                        break;
 218                         case Shader::OPCODE_MIN:        min(d, s0, s1);                                break;
 219                         case Shader::OPCODE_IMIN:       imin(d, s0, s1);                               break;
 220                         case Shader::OPCODE_UMIN:       umin(d, s0, s1);                               break;
 221                         case Shader::OPCODE_MAX:        max(d, s0, s1);                                break;
 222                         case Shader::OPCODE_IMAX:       imax(d, s0, s1);                               break;
 223                         case Shader::OPCODE_UMAX:       umax(d, s0, s1);                               break;
 224                         case Shader::OPCODE_LRP:        lrp(d, s0, s1, s2);                            break;
 225                         case Shader::OPCODE_STEP:       step(d, s0, s1);                               break;
 226                         case Shader::OPCODE_SMOOTH:     smooth(d, s0, s1, s2);                         break;
 227                         case Shader::OPCODE_FLOATBITSTOINT:
 228                         case Shader::OPCODE_FLOATBITSTOUINT:
 229                         case Shader::OPCODE_INTBITSTOFLOAT:
 230                         case Shader::OPCODE_UINTBITSTOFLOAT: d = s0;                                   break;
 231                         case Shader::OPCODE_POWX:       powx(d, s0, s1, pp);                           break;
 232                         case Shader::OPCODE_POW:        pow(d, s0, s1, pp);                            break;
 233                         case Shader::OPCODE_SGN:        sgn(d, s0);                                    break;
 234                         case Shader::OPCODE_CRS:        crs(d, s0, s1);                                break;
 235                         case Shader::OPCODE_FORWARD1:   forward1(d, s0, s1, s2);                       break;
 236                         case Shader::OPCODE_FORWARD2:   forward2(d, s0, s1, s2);                       break;
 237                         case Shader::OPCODE_FORWARD3:   forward3(d, s0, s1, s2);                       break;
 238                         case Shader::OPCODE_FORWARD4:   forward4(d, s0, s1, s2);                       break;
 239                         case Shader::OPCODE_REFLECT1:   reflect1(d, s0, s1);                           break;
 240                         case Shader::OPCODE_REFLECT2:   reflect2(d, s0, s1);                           break;
 241                         case Shader::OPCODE_REFLECT3:   reflect3(d, s0, s1);                           break;
 242                         case Shader::OPCODE_REFLECT4:   reflect4(d, s0, s1);                           break;
 243                         case Shader::OPCODE_REFRACT1:   refract1(d, s0, s1, s2.x);                     break;
 244                         case Shader::OPCODE_REFRACT2:   refract2(d, s0, s1, s2.x);                     break;
 245                         case Shader::OPCODE_REFRACT3:   refract3(d, s0, s1, s2.x);                     break;
 246                         case Shader::OPCODE_REFRACT4:   refract4(d, s0, s1, s2.x);                     break;
 247                         case Shader::OPCODE_NRM2:       nrm2(d, s0, pp);                               break;
 248                         case Shader::OPCODE_NRM3:       nrm3(d, s0, pp);                               break;
 249                         case Shader::OPCODE_NRM4:       nrm4(d, s0, pp);                               break;
 250                         case Shader::OPCODE_ABS:        abs(d, s0);                                    break;
 251                         case Shader::OPCODE_SINCOS:     sincos(d, s0, pp);                             break;
 252                         case Shader::OPCODE_COS:        cos(d, s0, pp);                                break;
 253                         case Shader::OPCODE_SIN:        sin(d, s0, pp);                                break;
 254                         case Shader::OPCODE_TAN:        tan(d, s0, pp);                                break;
 255                         case Shader::OPCODE_ACOS:       acos(d, s0, pp);                               break;
 256                         case Shader::OPCODE_ASIN:       asin(d, s0, pp);                               break;
 257                         case Shader::OPCODE_ATAN:       atan(d, s0, pp);                               break;
 258                         case Shader::OPCODE_ATAN2:      atan2(d, s0, s1, pp);                          break;
 259                         case Shader::OPCODE_COSH:       cosh(d, s0, pp);                               break;
 260                         case Shader::OPCODE_SINH:       sinh(d, s0, pp);                               break;
 261                         case Shader::OPCODE_TANH:       tanh(d, s0, pp);                               break;
 262                         case Shader::OPCODE_ACOSH:      acosh(d, s0, pp);                              break;
 263                         case Shader::OPCODE_ASINH:      asinh(d, s0, pp);                              break;
 264                         case Shader::OPCODE_ATANH:      atanh(d, s0, pp);                              break;
 265                         case Shader::OPCODE_M4X4:       M4X4(d, s0, src1);                             break;
 266                         case Shader::OPCODE_M4X3:       M4X3(d, s0, src1);                             break;
 267                         case Shader::OPCODE_M3X4:       M3X4(d, s0, src1);                             break;
 268                         case Shader::OPCODE_M3X3:       M3X3(d, s0, src1);                             break;
 269                         case Shader::OPCODE_M3X2:       M3X2(d, s0, src1);                             break;
 270                         case Shader::OPCODE_TEX:        TEXLD(d, s0, src1, project, bias);             break;
 271                         case Shader::OPCODE_TEXLDD:     TEXLDD(d, s0, src1, s2, s3, project, bias);    break;
 272                         case Shader::OPCODE_TEXLDL:     TEXLDL(d, s0, src1, project, bias);            break;
 273                         case Shader::OPCODE_TEXSIZE:    TEXSIZE(d, s0.x, src1);                        break;
 274                         case Shader::OPCODE_TEXKILL:    TEXKILL(cMask, d, dst.mask);                   break;
 275                         case Shader::OPCODE_TEXOFFSET:  TEXOFFSET(d, s0, src1, s2, s3, project, bias); break;
 276                         case Shader::OPCODE_TEXLDLOFFSET: TEXLDL(d, s0, src1, s2, project, bias);      break;
 277                         case Shader::OPCODE_TEXELFETCH: TEXELFETCH(d, s0, src1, s2);                   break;
 278                         case Shader::OPCODE_TEXELFETCHOFFSET: TEXELFETCH(d, s0, src1, s2, s3);         break;
 279                         case Shader::OPCODE_TEXGRAD:    TEXGRAD(d, s0, src1, s2, s3);                  break;
 280                         case Shader::OPCODE_TEXGRADOFFSET: TEXGRAD(d, s0, src1, s2, s3, s4);           break;
 281                         case Shader::OPCODE_DISCARD:    DISCARD(cMask, instruction);                   break;
 282                         case Shader::OPCODE_DFDX:       DFDX(d, s0);                                   break;
 283                         case Shader::OPCODE_DFDY:       DFDY(d, s0);                                   break;
 284                         case Shader::OPCODE_FWIDTH:     FWIDTH(d, s0);                                 break;
 285                         case Shader::OPCODE_BREAK:      BREAK();                                       break;
 286                         case Shader::OPCODE_BREAKC:     BREAKC(s0, s1, control);                       break;
 287                         case Shader::OPCODE_BREAKP:     BREAKP(src0);                                  break;
 288                         case Shader::OPCODE_CONTINUE:   CONTINUE();                                    break;
 289                         case Shader::OPCODE_TEST:       TEST();                                        break;
 290                         case Shader::OPCODE_CALL:       CALL(dst.label, dst.callSite);                 break;
 291                         case Shader::OPCODE_CALLNZ:     CALLNZ(dst.label, dst.callSite, src0);         break;
 292                         case Shader::OPCODE_ELSE:       ELSE();                                        break;
 293                         case Shader::OPCODE_ENDIF:      ENDIF();                                       break;
 294                         case Shader::OPCODE_ENDLOOP:    ENDLOOP();                                     break;
 295                         case Shader::OPCODE_ENDREP:     ENDREP();                                      break;
 296                         case Shader::OPCODE_ENDWHILE:   ENDWHILE();                                    break;
 297                         case Shader::OPCODE_IF:         IF(src0);                                      break;
 298                         case Shader::OPCODE_IFC:        IFC(s0, s1, control);                          break;
 299                         case Shader::OPCODE_LABEL:      LABEL(dst.index);                              break;
 300                         case Shader::OPCODE_LOOP:       LOOP(src1);                                    break;
 301                         case Shader::OPCODE_REP:        REP(src0);                                     break;
 302                         case Shader::OPCODE_WHILE:      WHILE(src0);                                   break;
 303                         case Shader::OPCODE_RET:        RET();                                         break;
 304                         case Shader::OPCODE_LEAVE:      LEAVE();                                       break;
 305                         case Shader::OPCODE_CMP:        cmp(d, s0, s1, control);                       break;
 306                         case Shader::OPCODE_ALL:        all(d.x, s0);                                  break;
 307                         case Shader::OPCODE_ANY:        any(d.x, s0);                                  break;
 308                         case Shader::OPCODE_NOT:        not(d, s0);                                    break;
 309                         case Shader::OPCODE_OR:         or(d, s0, s1);                                 break;
 310                         case Shader::OPCODE_XOR:        xor(d, s0, s1);                                break;
 311                         case Shader::OPCODE_AND:        and(d, s0, s1);                                break;
 312                         case Shader::OPCODE_EQ:         equal(d, s0, s1);                              break;
 313                         case Shader::OPCODE_NE:         notEqual(d, s0, s1);                           break;
 314                         case Shader::OPCODE_END:                                                       break;
 315                         default:
 316                                 ASSERT(false);
 317                         }
 318
 319                         if(dst.type != Shader::PARAMETER_VOID && dst.type != Shader::PARAMETER_LABEL && opcode != Shader::OPCODE_TEXKILL && opcode != Shader::OPCODE_NOP)
 320                         {
 321                                 if(dst.integer)
 322                                 {
 323                                         switch(opcode)
 324                                         {
 325                                         case Shader::OPCODE_DIV:
 326                                                 if(dst.x) d.x = Trunc(d.x);
 327                                                 if(dst.y) d.y = Trunc(d.y);
 328                                                 if(dst.z) d.z = Trunc(d.z);
 329                                                 if(dst.w) d.w = Trunc(d.w);
 330                                                 break;
 331                                         default:
 332                                                 break;   // No truncation to integer required when arguments are integer
 333                                         }
 334                                 }
 335
 336                                 if(dst.saturate)
 337                                 {
 338                                         if(dst.x) d.x = Max(d.x, Float4(0.0f));
 339                                         if(dst.y) d.y = Max(d.y, Float4(0.0f));
 340                                         if(dst.z) d.z = Max(d.z, Float4(0.0f));
 341                                         if(dst.w) d.w = Max(d.w, Float4(0.0f));
 342
 343                                         if(dst.x) d.x = Min(d.x, Float4(1.0f));
 344                                         if(dst.y) d.y = Min(d.y, Float4(1.0f));
 345                                         if(dst.z) d.z = Min(d.z, Float4(1.0f));
 346                                         if(dst.w) d.w = Min(d.w, Float4(1.0f));
 347                                 }
 348
 349                                 if(instruction->isPredicated())
 350                                 {
 351                                         Vector4f pDst;   // FIXME: Rename
 352
 353                                         switch(dst.type)
 354                                         {
 355                                         case Shader::PARAMETER_TEMP:
 356                                                 if(dst.rel.type == Shader::PARAMETER_VOID)
 357                                                 {
 358                                                         if(dst.x) pDst.x = r[dst.index].x;
 359                                                         if(dst.y) pDst.y = r[dst.index].y;
 360                                                         if(dst.z) pDst.z = r[dst.index].z;
 361                                                         if(dst.w) pDst.w = r[dst.index].w;
 362                                                 }
 363                                                 else
 364                                                 {
 365                                                         Int a = relativeAddress(dst);
 366
 367                                                         if(dst.x) pDst.x = r[dst.index + a].x;
 368                                                         if(dst.y) pDst.y = r[dst.index + a].y;
 369                                                         if(dst.z) pDst.z = r[dst.index + a].z;
 370                                                         if(dst.w) pDst.w = r[dst.index + a].w;
 371                                                 }
 372                                                 break;
 373                                         case Shader::PARAMETER_COLOROUT:
 374                                                 if(dst.rel.type == Shader::PARAMETER_VOID)
 375                                                 {
 376                                                         if(dst.x) pDst.x = oC[dst.index].x;
 377                                                         if(dst.y) pDst.y = oC[dst.index].y;
 378                                                         if(dst.z) pDst.z = oC[dst.index].z;
 379                                                         if(dst.w) pDst.w = oC[dst.index].w;
 380                                                 }
 381                                                 else
 382                                                 {
 383                                                         Int a = relativeAddress(dst) + dst.index;
 384
 385                                                         if(dst.x) pDst.x = oC[a].x;
 386                                                         if(dst.y) pDst.y = oC[a].y;
 387                                                         if(dst.z) pDst.z = oC[a].z;
 388                                                         if(dst.w) pDst.w = oC[a].w;
 389                                                 }
 390                                                 break;
 391                                         case Shader::PARAMETER_PREDICATE:
 392                                                 if(dst.x) pDst.x = p0.x;
 393                                                 if(dst.y) pDst.y = p0.y;
 394                                                 if(dst.z) pDst.z = p0.z;
 395                                                 if(dst.w) pDst.w = p0.w;
 396                                                 break;
 397                                         case Shader::PARAMETER_DEPTHOUT:
 398                                                 pDst.x = oDepth;
 399                                                 break;
 400                                         default:
 401                                                 ASSERT(false);
 402                                         }
 403
 404                                         Int4 enable = enableMask(instruction);
 405
 406                                         Int4 xEnable = enable;
 407                                         Int4 yEnable = enable;
 408                                         Int4 zEnable = enable;
 409                                         Int4 wEnable = enable;
 410
 411                                         if(predicate)
 412                                         {
 413                                                 unsigned char pSwizzle = instruction->predicateSwizzle;
 414
 415                                                 Float4 xPredicate = p0[(pSwizzle >> 0) & 0x03];
 416                                                 Float4 yPredicate = p0[(pSwizzle >> 2) & 0x03];
 417                                                 Float4 zPredicate = p0[(pSwizzle >> 4) & 0x03];
 418                                                 Float4 wPredicate = p0[(pSwizzle >> 6) & 0x03];
 419
 420                                                 if(!instruction->predicateNot)
 421                                                 {
 422                                                         if(dst.x) xEnable = xEnable & As<Int4>(xPredicate);
 423                                                         if(dst.y) yEnable = yEnable & As<Int4>(yPredicate);
 424                                                         if(dst.z) zEnable = zEnable & As<Int4>(zPredicate);
 425                                                         if(dst.w) wEnable = wEnable & As<Int4>(wPredicate);
 426                                                 }
 427                                                 else
 428                                                 {
 429                                                         if(dst.x) xEnable = xEnable & ~As<Int4>(xPredicate);
 430                                                         if(dst.y) yEnable = yEnable & ~As<Int4>(yPredicate);
 431                                                         if(dst.z) zEnable = zEnable & ~As<Int4>(zPredicate);
 432                                                         if(dst.w) wEnable = wEnable & ~As<Int4>(wPredicate);
 433                                                 }
 434                                         }
 435
 436                                         if(dst.x) d.x = As<Float4>(As<Int4>(d.x) & xEnable);
 437                                         if(dst.y) d.y = As<Float4>(As<Int4>(d.y) & yEnable);
 438                                         if(dst.z) d.z = As<Float4>(As<Int4>(d.z) & zEnable);
 439                                         if(dst.w) d.w = As<Float4>(As<Int4>(d.w) & wEnable);
 440
 441                                         if(dst.x) d.x = As<Float4>(As<Int4>(d.x) | (As<Int4>(pDst.x) & ~xEnable));
 442                                         if(dst.y) d.y = As<Float4>(As<Int4>(d.y) | (As<Int4>(pDst.y) & ~yEnable));
 443                                         if(dst.z) d.z = As<Float4>(As<Int4>(d.z) | (As<Int4>(pDst.z) & ~zEnable));
 444                                         if(dst.w) d.w = As<Float4>(As<Int4>(d.w) | (As<Int4>(pDst.w) & ~wEnable));
 445                                 }
 446
 447                                 switch(dst.type)
 448                                 {
 449                                 case Shader::PARAMETER_TEMP:
 450                                         if(dst.rel.type == Shader::PARAMETER_VOID)
 451                                         {
 452                                                 if(dst.x) r[dst.index].x = d.x;
 453                                                 if(dst.y) r[dst.index].y = d.y;
 454                                                 if(dst.z) r[dst.index].z = d.z;
 455                                                 if(dst.w) r[dst.index].w = d.w;
 456                                         }
 457                                         else
 458                                         {
 459                                                 Int a = relativeAddress(dst);
 460
 461                                                 if(dst.x) r[dst.index + a].x = d.x;
 462                                                 if(dst.y) r[dst.index + a].y = d.y;
 463                                                 if(dst.z) r[dst.index + a].z = d.z;
 464                                                 if(dst.w) r[dst.index + a].w = d.w;
 465                                         }
 466                                         break;
 467                                 case Shader::PARAMETER_COLOROUT:
 468                                         if(dst.rel.type == Shader::PARAMETER_VOID)
 469                                         {
 470                                                 if(dst.x) { oC[dst.index].x = d.x; }
 471                                                 if(dst.y) { oC[dst.index].y = d.y; }
 472                                                 if(dst.z) { oC[dst.index].z = d.z; }
 473                                                 if(dst.w) { oC[dst.index].w = d.w; }
 474                                         }
 475                                         else
 476                                         {
 477                                                 Int a = relativeAddress(dst) + dst.index;
 478
 479                                                 if(dst.x) { oC[a].x = d.x; }
 480                                                 if(dst.y) { oC[a].y = d.y; }
 481                                                 if(dst.z) { oC[a].z = d.z; }
 482                                                 if(dst.w) { oC[a].w = d.w; }
 483                                         }
 484                                         break;
 485                                 case Shader::PARAMETER_PREDICATE:
 486                                         if(dst.x) p0.x = d.x;
 487                                         if(dst.y) p0.y = d.y;
 488                                         if(dst.z) p0.z = d.z;
 489                                         if(dst.w) p0.w = d.w;
 490                                         break;
 491                                 case Shader::PARAMETER_DEPTHOUT:
 492                                         oDepth = d.x;
 493                                         break;
 494                                 default:
 495                                         ASSERT(false);
 496                                 }
 497                         }
 498                 }
 499
 500                 if(currentLabel != -1)
 501                 {
 502                         Nucleus::setInsertBlock(returnBlock);
 503                 }
 504
 505                 for(int i = 0; i < RENDERTARGETS; i++)
 506                 {
 507                         c[i] = oC[i];
 508                 }
 509         }
 510
 511         Bool PixelProgram::alphaTest(Int cMask[4])
 512         {
 513                 clampColor(c);
 514
 515                 if(!state.alphaTestActive())
 516                 {
 517                         return true;
 518                 }
 519
 520                 Int aMask;
 521
 522                 if(state.transparencyAntialiasing == TRANSPARENCY_NONE)
 523                 {
 524                         Short4 alpha = RoundShort4(c[0].w * Float4(0x1000));
 525
 526                         PixelRoutine::alphaTest(aMask, alpha);
 527
 528                         for(unsigned int q = 0; q < state.multiSample; q++)
 529                         {
 530                                 cMask[q] &= aMask;
 531                         }
 532                 }
 533                 else if(state.transparencyAntialiasing == TRANSPARENCY_ALPHA_TO_COVERAGE)
 534                 {
 535                         alphaToCoverage(cMask, c[0].w);
 536                 }
 537                 else ASSERT(false);
 538
 539                 Int pass = cMask[0];
 540
 541                 for(unsigned int q = 1; q < state.multiSample; q++)
 542                 {
 543                         pass = pass | cMask[q];
 544                 }
 545
 546                 return pass != 0x0;
 547         }
 548
 549         void PixelProgram::rasterOperation(Float4 &fog, Pointer<Byte> cBuffer[4], Int &x, Int sMask[4], Int zMask[4], Int cMask[4])
 550         {
 551                 for(int index = 0; index < RENDERTARGETS; index++)
 552                 {
 553                         if(!state.colorWriteActive(index))
 554                         {
 555                                 continue;
 556                         }
 557
 558                         if(!postBlendSRGB && state.writeSRGB)
 559                         {
 560                                 c[index].x = linearToSRGB(c[index].x);
 561                                 c[index].y = linearToSRGB(c[index].y);
 562                                 c[index].z = linearToSRGB(c[index].z);
 563                         }
 564
 565                         if(index == 0)
 566                         {
 567                                 fogBlend(c[index], fog);
 568                         }
 569
 570                         switch(state.targetFormat[index])
 571                         {
 572                         case FORMAT_R5G6B5:
 573                         case FORMAT_X8R8G8B8:
 574                         case FORMAT_X8B8G8R8:
 575                         case FORMAT_A8R8G8B8:
 576                         case FORMAT_A8B8G8R8:
 577                         case FORMAT_A8:
 578                         case FORMAT_G16R16:
 579                         case FORMAT_A16B16G16R16:
 580                                 for(unsigned int q = 0; q < state.multiSample; q++)
 581                                 {
 582                                         Pointer<Byte> buffer = cBuffer[index] + q * *Pointer<Int>(data + OFFSET(DrawData, colorSliceB[index]));
 583                                         Vector4s color;
 584
 585                                         color.x = convertFixed16(c[index].x, false);
 586                                         color.y = convertFixed16(c[index].y, false);
 587                                         color.z = convertFixed16(c[index].z, false);
 588                                         color.w = convertFixed16(c[index].w, false);
 589
 590                                         if(state.multiSampleMask & (1 << q))
 591                                         {
 592                                                 alphaBlend(index, buffer, color, x);
 593                                                 logicOperation(index, buffer, color, x);
 594                                                 writeColor(index, buffer, x, color, sMask[q], zMask[q], cMask[q]);
 595                                         }
 596                                 }
 597                                 break;
 598                         case FORMAT_R32F:
 599                         case FORMAT_G32R32F:
 600                         case FORMAT_A32B32G32R32F:
 601                                 for(unsigned int q = 0; q < state.multiSample; q++)
 602                                 {
 603                                         Pointer<Byte> buffer = cBuffer[index] + q * *Pointer<Int>(data + OFFSET(DrawData, colorSliceB[index]));
 604                                         Vector4f color = c[index];
 605
 606                                         if(state.multiSampleMask & (1 << q))
 607                                         {
 608                                                 alphaBlend(index, buffer, color, x);
 609                                                 writeColor(index, buffer, x, color, sMask[q], zMask[q], cMask[q]);
 610                                         }
 611                                 }
 612                                 break;
 613                         default:
 614                                 ASSERT(false);
 615                         }
 616                 }
 617         }
 618
 619         void PixelProgram::sampleTexture(Vector4f &c, const Src &sampler, Float4 &u, Float4 &v, Float4 &w, Float4 &q, Vector4f &dsx, Vector4f &dsy, bool project, bool bias, bool gradients, bool lodProvided)
 620         {
 621                 if(sampler.type == Shader::PARAMETER_SAMPLER && sampler.rel.type == Shader::PARAMETER_VOID)
 622                 {
 623                         sampleTexture(c, sampler.index, u, v, w, q, dsx, dsy, project, bias, gradients, lodProvided);
 624                 }
 625                 else
 626                 {
 627                         Int index = As<Int>(Float(fetchRegisterF(sampler).x.x));
 628
 629                         for(int i = 0; i < TEXTURE_IMAGE_UNITS; i++)
 630                         {
 631                                 if(shader->usesSampler(i))
 632                                 {
 633                                         If(index == i)
 634                                         {
 635                                                 sampleTexture(c, i, u, v, w, q, dsx, dsy, project, bias, gradients, lodProvided);
 636                                                 // FIXME: When the sampler states are the same, we could use one sampler and just index the texture
 637                                         }
 638                                 }
 639                         }
 640                 }
 641         }
 642
 643         void PixelProgram::sampleTexture(Vector4f &c, int stage, Float4 &u, Float4 &v, Float4 &w, Float4 &q, Vector4f &dsx, Vector4f &dsy, bool project, bool bias, bool gradients, bool lodProvided)
 644         {
 645 #if PERF_PROFILE
 646                 Long texTime = Ticks();
 647 #endif
 648
 649                 Pointer<Byte> texture = data + OFFSET(DrawData, mipmap) + stage * sizeof(Texture);
 650
 651                 if(!project)
 652                 {
 653                         sampler[stage]->sampleTexture(texture, c, u, v, w, q, dsx, dsy, bias, gradients, lodProvided);
 654                 }
 655                 else
 656                 {
 657                         Float4 rq = reciprocal(q);
 658
 659                         Float4 u_q = u * rq;
 660                         Float4 v_q = v * rq;
 661                         Float4 w_q = w * rq;
 662
 663                         sampler[stage]->sampleTexture(texture, c, u_q, v_q, w_q, q, dsx, dsy, bias, gradients, lodProvided);
 664                 }
 665
 666 #if PERF_PROFILE
 667                 cycles[PERF_TEX] += Ticks() - texTime;
 668 #endif
 669         }
 670
 671         void PixelProgram::clampColor(Vector4f oC[RENDERTARGETS])
 672         {
 673                 for(int index = 0; index < RENDERTARGETS; index++)
 674                 {
 675                         if(!state.colorWriteActive(index) && !(index == 0 && state.alphaTestActive()))
 676                         {
 677                                 continue;
 678                         }
 679
 680                         switch(state.targetFormat[index])
 681                         {
 682                         case FORMAT_NULL:
 683                                 break;
 684                         case FORMAT_R5G6B5:
 685                         case FORMAT_A8R8G8B8:
 686                         case FORMAT_A8B8G8R8:
 687                         case FORMAT_X8R8G8B8:
 688                         case FORMAT_X8B8G8R8:
 689                         case FORMAT_A8:
 690                         case FORMAT_G16R16:
 691                         case FORMAT_A16B16G16R16:
 692                                 oC[index].x = Max(oC[index].x, Float4(0.0f)); oC[index].x = Min(oC[index].x, Float4(1.0f));
 693                                 oC[index].y = Max(oC[index].y, Float4(0.0f)); oC[index].y = Min(oC[index].y, Float4(1.0f));
 694                                 oC[index].z = Max(oC[index].z, Float4(0.0f)); oC[index].z = Min(oC[index].z, Float4(1.0f));
 695                                 oC[index].w = Max(oC[index].w, Float4(0.0f)); oC[index].w = Min(oC[index].w, Float4(1.0f));
 696                                 break;
 697                         case FORMAT_R32F:
 698                         case FORMAT_G32R32F:
 699                         case FORMAT_A32B32G32R32F:
 700                                 break;
 701                         default:
 702                                 ASSERT(false);
 703                         }
 704                 }
 705         }
 706
 707         Int4 PixelProgram::enableMask(const Shader::Instruction *instruction)
 708         {
 709                 Int4 enable = instruction->analysisBranch ? Int4(enableStack[enableIndex]) : Int4(0xFFFFFFFF);
 710
 711                 if(!whileTest)
 712                 {
 713                         if(shader->containsBreakInstruction() && instruction->analysisBreak)
 714                         {
 715                                 enable &= enableBreak;
 716                         }
 717
 718                         if(shader->containsContinueInstruction() && instruction->analysisContinue)
 719                         {
 720                                 enable &= enableContinue;
 721                         }
 722
 723                         if(shader->containsLeaveInstruction() && instruction->analysisLeave)
 724                         {
 725                                 enable &= enableLeave;
 726                         }
 727                 }
 728
 729                 return enable;
 730         }
 731
 732         Vector4f PixelProgram::fetchRegisterF(const Src &src, unsigned int offset)
 733         {
 734                 Vector4f reg;
 735                 unsigned int i = src.index + offset;
 736
 737                 switch(src.type)
 738                 {
 739                 case Shader::PARAMETER_TEMP:
 740                         if(src.rel.type == Shader::PARAMETER_VOID)
 741                         {
 742                                 reg = r[i];
 743                         }
 744                         else
 745                         {
 746                                 Int a = relativeAddress(src, src.bufferIndex);
 747
 748                                 reg = r[i + a];
 749                         }
 750                         break;
 751                 case Shader::PARAMETER_INPUT:
 752                         {
 753                                 if(src.rel.type == Shader::PARAMETER_VOID)   // Not relative
 754                                 {
 755                                         reg = v[i];
 756                                 }
 757                                 else
 758                                 {
 759                                         Int a = relativeAddress(src, src.bufferIndex);
 760
 761                                         reg = v[i + a];
 762                                 }
 763                         }
 764                         break;
 765                 case Shader::PARAMETER_CONST:
 766                         reg = readConstant(src, offset);
 767                         break;
 768                 case Shader::PARAMETER_TEXTURE:
 769                         reg = v[2 + i];
 770                         break;
 771                 case Shader::PARAMETER_MISCTYPE:
 772                         if(src.index == 0) reg = vPos;
 773                         if(src.index == 1) reg = vFace;
 774                         break;
 775                 case Shader::PARAMETER_SAMPLER:
 776                         if(src.rel.type == Shader::PARAMETER_VOID)
 777                         {
 778                                 reg.x = As<Float4>(Int4(i));
 779                         }
 780                         else if(src.rel.type == Shader::PARAMETER_TEMP)
 781                         {
 782                                 reg.x = As<Float4>(Int4(i) + As<Int4>(r[src.rel.index].x));
 783                         }
 784                         return reg;
 785                 case Shader::PARAMETER_PREDICATE:   return reg; // Dummy
 786                 case Shader::PARAMETER_VOID:        return reg; // Dummy
 787                 case Shader::PARAMETER_FLOAT4LITERAL:
 788                         reg.x = Float4(src.value[0]);
 789                         reg.y = Float4(src.value[1]);
 790                         reg.z = Float4(src.value[2]);
 791                         reg.w = Float4(src.value[3]);
 792                         break;
 793                 case Shader::PARAMETER_CONSTINT:    return reg; // Dummy
 794                 case Shader::PARAMETER_CONSTBOOL:   return reg; // Dummy
 795                 case Shader::PARAMETER_LOOP:        return reg; // Dummy
 796                 case Shader::PARAMETER_COLOROUT:
 797                         if(src.rel.type == Shader::PARAMETER_VOID)   // Not relative
 798                         {
 799                                 reg = oC[i];
 800                         }
 801                         else
 802                         {
 803                                 Int a = relativeAddress(src, src.bufferIndex);
 804
 805                                 reg = oC[i + a];
 806                         }
 807                         break;
 808                 case Shader::PARAMETER_DEPTHOUT:
 809                         reg.x = oDepth;
 810                         break;
 811                 default:
 812                         ASSERT(false);
 813                 }
 814
 815                 const Float4 &x = reg[(src.swizzle >> 0) & 0x3];
 816                 const Float4 &y = reg[(src.swizzle >> 2) & 0x3];
 817                 const Float4 &z = reg[(src.swizzle >> 4) & 0x3];
 818                 const Float4 &w = reg[(src.swizzle >> 6) & 0x3];
 819
 820                 Vector4f mod;
 821
 822                 switch(src.modifier)
 823                 {
 824                 case Shader::MODIFIER_NONE:
 825                         mod.x = x;
 826                         mod.y = y;
 827                         mod.z = z;
 828                         mod.w = w;
 829                         break;
 830                 case Shader::MODIFIER_NEGATE:
 831                         mod.x = -x;
 832                         mod.y = -y;
 833                         mod.z = -z;
 834                         mod.w = -w;
 835                         break;
 836                 case Shader::MODIFIER_ABS:
 837                         mod.x = Abs(x);
 838                         mod.y = Abs(y);
 839                         mod.z = Abs(z);
 840                         mod.w = Abs(w);
 841                         break;
 842                 case Shader::MODIFIER_ABS_NEGATE:
 843                         mod.x = -Abs(x);
 844                         mod.y = -Abs(y);
 845                         mod.z = -Abs(z);
 846                         mod.w = -Abs(w);
 847                         break;
 848                 case Shader::MODIFIER_NOT:
 849                         mod.x = As<Float4>(As<Int4>(x) ^ Int4(0xFFFFFFFF));
 850                         mod.y = As<Float4>(As<Int4>(y) ^ Int4(0xFFFFFFFF));
 851                         mod.z = As<Float4>(As<Int4>(z) ^ Int4(0xFFFFFFFF));
 852                         mod.w = As<Float4>(As<Int4>(w) ^ Int4(0xFFFFFFFF));
 853                         break;
 854                 default:
 855                         ASSERT(false);
 856                 }
 857
 858                 return mod;
 859         }
 860
 861         RValue<Pointer<Byte>> PixelProgram::uniformAddress(int bufferIndex, unsigned int index)
 862         {
 863                 if(bufferIndex == -1)
 864                 {
 865                         return data + OFFSET(DrawData, ps.c[index]);
 866                 }
 867                 else
 868                 {
 869                         return *Pointer<Pointer<Byte>>(data + OFFSET(DrawData, ps.u[bufferIndex])) + index;
 870                 }
 871         }
 872
 873         RValue<Pointer<Byte>> PixelProgram::uniformAddress(int bufferIndex, unsigned int index, Int& offset)
 874         {
 875                 return uniformAddress(bufferIndex, index) + offset * sizeof(float4);
 876         }
 877
 878         Vector4f PixelProgram::readConstant(const Src &src, unsigned int offset)
 879         {
 880                 Vector4f c;
 881                 unsigned int i = src.index + offset;
 882
 883                 if(src.rel.type == Shader::PARAMETER_VOID)   // Not relative
 884                 {
 885                         c.x = c.y = c.z = c.w = *Pointer<Float4>(uniformAddress(src.bufferIndex, i));
 886
 887                         c.x = c.x.xxxx;
 888                         c.y = c.y.yyyy;
 889                         c.z = c.z.zzzz;
 890                         c.w = c.w.wwww;
 891
 892                         if(shader->containsDefineInstruction())   // Constant may be known at compile time
 893                         {
 894                                 for(size_t j = 0; j < shader->getLength(); j++)
 895                                 {
 896                                         const Shader::Instruction &instruction = *shader->getInstruction(j);
 897
 898                                         if(instruction.opcode == Shader::OPCODE_DEF)
 899                                         {
 900                                                 if(instruction.dst.index == i)
 901                                                 {
 902                                                         c.x = Float4(instruction.src[0].value[0]);
 903                                                         c.y = Float4(instruction.src[0].value[1]);
 904                                                         c.z = Float4(instruction.src[0].value[2]);
 905                                                         c.w = Float4(instruction.src[0].value[3]);
 906
 907                                                         break;
 908                                                 }
 909                                         }
 910                                 }
 911                         }
 912                 }
 913                 else if(src.rel.type == Shader::PARAMETER_LOOP)
 914                 {
 915                         Int loopCounter = aL[loopDepth];
 916
 917                         c.x = c.y = c.z = c.w = *Pointer<Float4>(uniformAddress(src.bufferIndex, i, loopCounter));
 918
 919                         c.x = c.x.xxxx;
 920                         c.y = c.y.yyyy;
 921                         c.z = c.z.zzzz;
 922                         c.w = c.w.wwww;
 923                 }
 924                 else
 925                 {
 926                         Int a = relativeAddress(src, src.bufferIndex);
 927
 928                         c.x = c.y = c.z = c.w = *Pointer<Float4>(uniformAddress(src.bufferIndex, i, a));
 929
 930                         c.x = c.x.xxxx;
 931                         c.y = c.y.yyyy;
 932                         c.z = c.z.zzzz;
 933                         c.w = c.w.wwww;
 934                 }
 935
 936                 return c;
 937         }
 938
 939         Int PixelProgram::relativeAddress(const Shader::Parameter &var, int bufferIndex)
 940         {
 941                 ASSERT(var.rel.deterministic);
 942
 943                 if(var.rel.type == Shader::PARAMETER_TEMP)
 944                 {
 945                         return As<Int>(Extract(r[var.rel.index].x, 0)) * var.rel.scale;
 946                 }
 947                 else if(var.rel.type == Shader::PARAMETER_INPUT)
 948                 {
 949                         return As<Int>(Extract(v[var.rel.index].x, 0)) * var.rel.scale;
 950                 }
 951                 else if(var.rel.type == Shader::PARAMETER_OUTPUT)
 952                 {
 953                         return As<Int>(Extract(oC[var.rel.index].x, 0)) * var.rel.scale;
 954                 }
 955                 else if(var.rel.type == Shader::PARAMETER_CONST)
 956                 {
 957                         RValue<Int4> c = *Pointer<Int4>(uniformAddress(bufferIndex, var.rel.index));
 958
 959                         return Extract(c, 0) * var.rel.scale;
 960                 }
 961                 else if(var.rel.type == Shader::PARAMETER_LOOP)
 962                 {
 963                         return aL[loopDepth];
 964                 }
 965                 else ASSERT(false);
 966
 967                 return 0;
 968         }
 969
 970         Float4 PixelProgram::linearToSRGB(const Float4 &x)   // Approximates x^(1.0/2.2)
 971         {
 972                 Float4 sqrtx = Rcp_pp(RcpSqrt_pp(x));
 973                 Float4 sRGB = sqrtx * Float4(1.14f) - x * Float4(0.14f);
 974
 975                 return Min(Max(sRGB, Float4(0.0f)), Float4(1.0f));
 976         }
 977
 978         void PixelProgram::M3X2(Vector4f &dst, Vector4f &src0, const Src &src1)
 979         {
 980                 Vector4f row0 = fetchRegisterF(src1, 0);
 981                 Vector4f row1 = fetchRegisterF(src1, 1);
 982
 983                 dst.x = dot3(src0, row0);
 984                 dst.y = dot3(src0, row1);
 985         }
 986
 987         void PixelProgram::M3X3(Vector4f &dst, Vector4f &src0, const Src &src1)
 988         {
 989                 Vector4f row0 = fetchRegisterF(src1, 0);
 990                 Vector4f row1 = fetchRegisterF(src1, 1);
 991                 Vector4f row2 = fetchRegisterF(src1, 2);
 992
 993                 dst.x = dot3(src0, row0);
 994                 dst.y = dot3(src0, row1);
 995                 dst.z = dot3(src0, row2);
 996         }
 997
 998         void PixelProgram::M3X4(Vector4f &dst, Vector4f &src0, const Src &src1)
 999         {
1000                 Vector4f row0 = fetchRegisterF(src1, 0);
1001                 Vector4f row1 = fetchRegisterF(src1, 1);
1002                 Vector4f row2 = fetchRegisterF(src1, 2);
1003                 Vector4f row3 = fetchRegisterF(src1, 3);
1004
1005                 dst.x = dot3(src0, row0);
1006                 dst.y = dot3(src0, row1);
1007                 dst.z = dot3(src0, row2);
1008                 dst.w = dot3(src0, row3);
1009         }
1010
1011         void PixelProgram::M4X3(Vector4f &dst, Vector4f &src0, const Src &src1)
1012         {
1013                 Vector4f row0 = fetchRegisterF(src1, 0);
1014                 Vector4f row1 = fetchRegisterF(src1, 1);
1015                 Vector4f row2 = fetchRegisterF(src1, 2);
1016
1017                 dst.x = dot4(src0, row0);
1018                 dst.y = dot4(src0, row1);
1019                 dst.z = dot4(src0, row2);
1020         }
1021
1022         void PixelProgram::M4X4(Vector4f &dst, Vector4f &src0, const Src &src1)
1023         {
1024                 Vector4f row0 = fetchRegisterF(src1, 0);
1025                 Vector4f row1 = fetchRegisterF(src1, 1);
1026                 Vector4f row2 = fetchRegisterF(src1, 2);
1027                 Vector4f row3 = fetchRegisterF(src1, 3);
1028
1029                 dst.x = dot4(src0, row0);
1030                 dst.y = dot4(src0, row1);
1031                 dst.z = dot4(src0, row2);
1032                 dst.w = dot4(src0, row3);
1033         }
1034
1035         void PixelProgram::TEXLD(Vector4f &dst, Vector4f &src0, const Src &src1, bool project, bool bias)
1036         {
1037                 Vector4f tmp;
1038                 sampleTexture(tmp, src1, src0.x, src0.y, src0.z, src0.w, src0, src0, project, bias);
1039
1040                 dst.x = tmp[(src1.swizzle >> 0) & 0x3];
1041                 dst.y = tmp[(src1.swizzle >> 2) & 0x3];
1042                 dst.z = tmp[(src1.swizzle >> 4) & 0x3];
1043                 dst.w = tmp[(src1.swizzle >> 6) & 0x3];
1044         }
1045
1046         void PixelProgram::TEXOFFSET(Vector4f &dst, Vector4f &src0, const Src& src1, Vector4f &src2, Vector4f &src3, bool project, bool bias)
1047         {
1048                 UNIMPLEMENTED();
1049         }
1050
1051         void PixelProgram::TEXLDL(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &offset, bool project, bool bias)
1052         {
1053                 UNIMPLEMENTED();
1054         }
1055
1056         void PixelProgram::TEXELFETCH(Vector4f &dst, Vector4f &src0, const Src& src1, Vector4f &src2)
1057         {
1058                 UNIMPLEMENTED();
1059         }
1060
1061         void PixelProgram::TEXELFETCH(Vector4f &dst, Vector4f &src0, const Src& src1, Vector4f &src2, Vector4f &offset)
1062         {
1063                 UNIMPLEMENTED();
1064         }
1065
1066         void PixelProgram::TEXGRAD(Vector4f &dst, Vector4f &src0, const Src& src1, Vector4f &src2, Vector4f &src3)
1067         {
1068                 UNIMPLEMENTED();
1069         }
1070
1071         void PixelProgram::TEXGRAD(Vector4f &dst, Vector4f &src0, const Src& src1, Vector4f &src2, Vector4f &src3, Vector4f &offset)
1072         {
1073                 UNIMPLEMENTED();
1074         }
1075
1076         void PixelProgram::TEXLDD(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &src2, Vector4f &src3, bool project, bool bias)
1077         {
1078                 Vector4f tmp;
1079                 sampleTexture(tmp, src1, src0.x, src0.y, src0.z, src0.w, src2, src3, project, bias, true);
1080
1081                 dst.x = tmp[(src1.swizzle >> 0) & 0x3];
1082                 dst.y = tmp[(src1.swizzle >> 2) & 0x3];
1083                 dst.z = tmp[(src1.swizzle >> 4) & 0x3];
1084                 dst.w = tmp[(src1.swizzle >> 6) & 0x3];
1085         }
1086
1087         void PixelProgram::TEXLDL(Vector4f &dst, Vector4f &src0, const Src &src1, bool project, bool bias)
1088         {
1089                 Vector4f tmp;
1090                 sampleTexture(tmp, src1, src0.x, src0.y, src0.z, src0.w, src0, src0, project, bias, false, true);
1091
1092                 dst.x = tmp[(src1.swizzle >> 0) & 0x3];
1093                 dst.y = tmp[(src1.swizzle >> 2) & 0x3];
1094                 dst.z = tmp[(src1.swizzle >> 4) & 0x3];
1095                 dst.w = tmp[(src1.swizzle >> 6) & 0x3];
1096         }
1097
1098         void PixelProgram::TEXSIZE(Vector4f &dst, Float4 &lod, const Src &src1)
1099         {
1100                 Pointer<Byte> textureMipmap = data + OFFSET(DrawData, mipmap) + src1.index * sizeof(Texture) + OFFSET(Texture, mipmap);
1101                 for(int i = 0; i < 4; ++i)
1102                 {
1103                         Pointer<Byte> mipmap = textureMipmap + (As<Int>(Extract(lod, i)) + Int(1)) * sizeof(Mipmap);
1104                         dst.x = Insert(dst.x, As<Float>(Int(*Pointer<Short>(mipmap + OFFSET(Mipmap, width)))), i);
1105                         dst.y = Insert(dst.y, As<Float>(Int(*Pointer<Short>(mipmap + OFFSET(Mipmap, height)))), i);
1106                         dst.z = Insert(dst.z, As<Float>(Int(*Pointer<Short>(mipmap + OFFSET(Mipmap, depth)))), i);
1107                 }
1108         }
1109
1110         void PixelProgram::TEXKILL(Int cMask[4], Vector4f &src, unsigned char mask)
1111         {
1112                 Int kill = -1;
1113
1114                 if(mask & 0x1) kill &= SignMask(CmpNLT(src.x, Float4(0.0f)));
1115                 if(mask & 0x2) kill &= SignMask(CmpNLT(src.y, Float4(0.0f)));
1116                 if(mask & 0x4) kill &= SignMask(CmpNLT(src.z, Float4(0.0f)));
1117                 if(mask & 0x8) kill &= SignMask(CmpNLT(src.w, Float4(0.0f)));
1118
1119                 // FIXME: Dynamic branching affects TEXKILL?
1120                 //      if(shader->containsDynamicBranching())
1121                 //      {
1122                 //              kill = ~SignMask(enableMask());
1123                 //      }
1124
1125                 for(unsigned int q = 0; q < state.multiSample; q++)
1126                 {
1127                         cMask[q] &= kill;
1128                 }
1129
1130                 // FIXME: Branch to end of shader if all killed?
1131         }
1132
1133         void PixelProgram::DISCARD(Int cMask[4], const Shader::Instruction *instruction)
1134         {
1135                 Int kill = 0;
1136
1137                 if(shader->containsDynamicBranching())
1138                 {
1139                         kill = ~SignMask(enableMask(instruction));
1140                 }
1141
1142                 for(unsigned int q = 0; q < state.multiSample; q++)
1143                 {
1144                         cMask[q] &= kill;
1145                 }
1146
1147                 // FIXME: Branch to end of shader if all killed?
1148         }
1149
1150         void PixelProgram::DFDX(Vector4f &dst, Vector4f &src)
1151         {
1152                 dst.x = src.x.yyww - src.x.xxzz;
1153                 dst.y = src.y.yyww - src.y.xxzz;
1154                 dst.z = src.z.yyww - src.z.xxzz;
1155                 dst.w = src.w.yyww - src.w.xxzz;
1156         }
1157
1158         void PixelProgram::DFDY(Vector4f &dst, Vector4f &src)
1159         {
1160                 dst.x = src.x.zwzw - src.x.xyxy;
1161                 dst.y = src.y.zwzw - src.y.xyxy;
1162                 dst.z = src.z.zwzw - src.z.xyxy;
1163                 dst.w = src.w.zwzw - src.w.xyxy;
1164         }
1165
1166         void PixelProgram::FWIDTH(Vector4f &dst, Vector4f &src)
1167         {
1168                 // abs(dFdx(src)) + abs(dFdy(src));
1169                 dst.x = Abs(src.x.yyww - src.x.xxzz) + Abs(src.x.zwzw - src.x.xyxy);
1170                 dst.y = Abs(src.y.yyww - src.y.xxzz) + Abs(src.y.zwzw - src.y.xyxy);
1171                 dst.z = Abs(src.z.yyww - src.z.xxzz) + Abs(src.z.zwzw - src.z.xyxy);
1172                 dst.w = Abs(src.w.yyww - src.w.xxzz) + Abs(src.w.zwzw - src.w.xyxy);
1173         }
1174
1175         void PixelProgram::BREAK()
1176         {
1177                 llvm::BasicBlock *deadBlock = Nucleus::createBasicBlock();
1178                 llvm::BasicBlock *endBlock = loopRepEndBlock[loopRepDepth - 1];
1179
1180                 if(breakDepth == 0)
1181                 {
1182                         enableIndex = enableIndex - breakDepth;
1183                         Nucleus::createBr(endBlock);
1184                 }
1185                 else
1186                 {
1187                         enableBreak = enableBreak & ~enableStack[enableIndex];
1188                         Bool allBreak = SignMask(enableBreak) == 0x0;
1189
1190                         enableIndex = enableIndex - breakDepth;
1191                         branch(allBreak, endBlock, deadBlock);
1192                 }
1193
1194                 Nucleus::setInsertBlock(deadBlock);
1195                 enableIndex = enableIndex + breakDepth;
1196         }
1197
1198         void PixelProgram::BREAKC(Vector4f &src0, Vector4f &src1, Control control)
1199         {
1200                 Int4 condition;
1201
1202                 switch(control)
1203                 {
1204                 case Shader::CONTROL_GT: condition = CmpNLE(src0.x, src1.x); break;
1205                 case Shader::CONTROL_EQ: condition = CmpEQ(src0.x, src1.x);  break;
1206                 case Shader::CONTROL_GE: condition = CmpNLT(src0.x, src1.x); break;
1207                 case Shader::CONTROL_LT: condition = CmpLT(src0.x, src1.x);  break;
1208                 case Shader::CONTROL_NE: condition = CmpNEQ(src0.x, src1.x); break;
1209                 case Shader::CONTROL_LE: condition = CmpLE(src0.x, src1.x);  break;
1210                 default:
1211                         ASSERT(false);
1212                 }
1213
1214                 BREAK(condition);
1215         }
1216
1217         void PixelProgram::BREAKP(const Src &predicateRegister)   // FIXME: Factor out parts common with BREAKC
1218         {
1219                 Int4 condition = As<Int4>(p0[predicateRegister.swizzle & 0x3]);
1220
1221                 if(predicateRegister.modifier == Shader::MODIFIER_NOT)
1222                 {
1223                         condition = ~condition;
1224                 }
1225
1226                 BREAK(condition);
1227         }
1228
1229         void PixelProgram::BREAK(Int4 &condition)
1230         {
1231                 condition &= enableStack[enableIndex];
1232
1233                 llvm::BasicBlock *continueBlock = Nucleus::createBasicBlock();
1234                 llvm::BasicBlock *endBlock = loopRepEndBlock[loopRepDepth - 1];
1235
1236                 enableBreak = enableBreak & ~condition;
1237                 Bool allBreak = SignMask(enableBreak) == 0x0;
1238
1239                 enableIndex = enableIndex - breakDepth;
1240                 branch(allBreak, endBlock, continueBlock);
1241
1242                 Nucleus::setInsertBlock(continueBlock);
1243                 enableIndex = enableIndex + breakDepth;
1244         }
1245
1246         void PixelProgram::CONTINUE()
1247         {
1248                 enableContinue = enableContinue & ~enableStack[enableIndex];
1249         }
1250
1251         void PixelProgram::TEST()
1252         {
1253                 whileTest = true;
1254         }
1255
1256         void PixelProgram::CALL(int labelIndex, int callSiteIndex)
1257         {
1258                 if(!labelBlock[labelIndex])
1259                 {
1260                         labelBlock[labelIndex] = Nucleus::createBasicBlock();
1261                 }
1262
1263                 if(callRetBlock[labelIndex].size() > 1)
1264                 {
1265                         callStack[stackIndex++] = UInt(callSiteIndex);
1266                 }
1267
1268                 Int4 restoreLeave = enableLeave;
1269
1270                 Nucleus::createBr(labelBlock[labelIndex]);
1271                 Nucleus::setInsertBlock(callRetBlock[labelIndex][callSiteIndex]);
1272
1273                 enableLeave = restoreLeave;
1274         }
1275
1276         void PixelProgram::CALLNZ(int labelIndex, int callSiteIndex, const Src &src)
1277         {
1278                 if(src.type == Shader::PARAMETER_CONSTBOOL)
1279                 {
1280                         CALLNZb(labelIndex, callSiteIndex, src);
1281                 }
1282                 else if(src.type == Shader::PARAMETER_PREDICATE)
1283                 {
1284                         CALLNZp(labelIndex, callSiteIndex, src);
1285                 }
1286                 else ASSERT(false);
1287         }
1288
1289         void PixelProgram::CALLNZb(int labelIndex, int callSiteIndex, const Src &boolRegister)
1290         {
1291                 Bool condition = (*Pointer<Byte>(data + OFFSET(DrawData, ps.b[boolRegister.index])) != Byte(0));   // FIXME
1292
1293                 if(boolRegister.modifier == Shader::MODIFIER_NOT)
1294                 {
1295                         condition = !condition;
1296                 }
1297
1298                 if(!labelBlock[labelIndex])
1299                 {
1300                         labelBlock[labelIndex] = Nucleus::createBasicBlock();
1301                 }
1302
1303                 if(callRetBlock[labelIndex].size() > 1)
1304                 {
1305                         callStack[stackIndex++] = UInt(callSiteIndex);
1306                 }
1307
1308                 Int4 restoreLeave = enableLeave;
1309
1310                 branch(condition, labelBlock[labelIndex], callRetBlock[labelIndex][callSiteIndex]);
1311                 Nucleus::setInsertBlock(callRetBlock[labelIndex][callSiteIndex]);
1312
1313                 enableLeave = restoreLeave;
1314         }
1315
1316         void PixelProgram::CALLNZp(int labelIndex, int callSiteIndex, const Src &predicateRegister)
1317         {
1318                 Int4 condition = As<Int4>(p0[predicateRegister.swizzle & 0x3]);
1319
1320                 if(predicateRegister.modifier == Shader::MODIFIER_NOT)
1321                 {
1322                         condition = ~condition;
1323                 }
1324
1325                 condition &= enableStack[enableIndex];
1326
1327                 if(!labelBlock[labelIndex])
1328                 {
1329                         labelBlock[labelIndex] = Nucleus::createBasicBlock();
1330                 }
1331
1332                 if(callRetBlock[labelIndex].size() > 1)
1333                 {
1334                         callStack[stackIndex++] = UInt(callSiteIndex);
1335                 }
1336
1337                 enableIndex++;
1338                 enableStack[enableIndex] = condition;
1339                 Int4 restoreLeave = enableLeave;
1340
1341                 Bool notAllFalse = SignMask(condition) != 0;
1342                 branch(notAllFalse, labelBlock[labelIndex], callRetBlock[labelIndex][callSiteIndex]);
1343                 Nucleus::setInsertBlock(callRetBlock[labelIndex][callSiteIndex]);
1344
1345                 enableIndex--;
1346                 enableLeave = restoreLeave;
1347         }
1348
1349         void PixelProgram::ELSE()
1350         {
1351                 ifDepth--;
1352
1353                 llvm::BasicBlock *falseBlock = ifFalseBlock[ifDepth];
1354                 llvm::BasicBlock *endBlock = Nucleus::createBasicBlock();
1355
1356                 if(isConditionalIf[ifDepth])
1357                 {
1358                         Int4 condition = ~enableStack[enableIndex] & enableStack[enableIndex - 1];
1359                         Bool notAllFalse = SignMask(condition) != 0;
1360
1361                         branch(notAllFalse, falseBlock, endBlock);
1362
1363                         enableStack[enableIndex] = ~enableStack[enableIndex] & enableStack[enableIndex - 1];
1364                 }
1365                 else
1366                 {
1367                         Nucleus::createBr(endBlock);
1368                         Nucleus::setInsertBlock(falseBlock);
1369                 }
1370
1371                 ifFalseBlock[ifDepth] = endBlock;
1372
1373                 ifDepth++;
1374         }
1375
1376         void PixelProgram::ENDIF()
1377         {
1378                 ifDepth--;
1379
1380                 llvm::BasicBlock *endBlock = ifFalseBlock[ifDepth];
1381
1382                 Nucleus::createBr(endBlock);
1383                 Nucleus::setInsertBlock(endBlock);
1384
1385                 if(isConditionalIf[ifDepth])
1386                 {
1387                         breakDepth--;
1388                         enableIndex--;
1389                 }
1390         }
1391
1392         void PixelProgram::ENDLOOP()
1393         {
1394                 loopRepDepth--;
1395
1396                 aL[loopDepth] = aL[loopDepth] + increment[loopDepth];   // FIXME: +=
1397
1398                 llvm::BasicBlock *testBlock = loopRepTestBlock[loopRepDepth];
1399                 llvm::BasicBlock *endBlock = loopRepEndBlock[loopRepDepth];
1400
1401                 Nucleus::createBr(testBlock);
1402                 Nucleus::setInsertBlock(endBlock);
1403
1404                 loopDepth--;
1405                 enableBreak = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
1406         }
1407
1408         void PixelProgram::ENDREP()
1409         {
1410                 loopRepDepth--;
1411
1412                 llvm::BasicBlock *testBlock = loopRepTestBlock[loopRepDepth];
1413                 llvm::BasicBlock *endBlock = loopRepEndBlock[loopRepDepth];
1414
1415                 Nucleus::createBr(testBlock);
1416                 Nucleus::setInsertBlock(endBlock);
1417
1418                 loopDepth--;
1419                 enableBreak = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
1420         }
1421
1422         void PixelProgram::ENDWHILE()
1423         {
1424                 loopRepDepth--;
1425
1426                 llvm::BasicBlock *testBlock = loopRepTestBlock[loopRepDepth];
1427                 llvm::BasicBlock *endBlock = loopRepEndBlock[loopRepDepth];
1428
1429                 Nucleus::createBr(testBlock);
1430                 Nucleus::setInsertBlock(endBlock);
1431
1432                 enableIndex--;
1433                 enableBreak = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
1434                 whileTest = false;
1435         }
1436
1437         void PixelProgram::IF(const Src &src)
1438         {
1439                 if(src.type == Shader::PARAMETER_CONSTBOOL)
1440                 {
1441                         IFb(src);
1442                 }
1443                 else if(src.type == Shader::PARAMETER_PREDICATE)
1444                 {
1445                         IFp(src);
1446                 }
1447                 else
1448                 {
1449                         Int4 condition = As<Int4>(fetchRegisterF(src).x);
1450                         IF(condition);
1451                 }
1452         }
1453
1454         void PixelProgram::IFb(const Src &boolRegister)
1455         {
1456                 ASSERT(ifDepth < 24 + 4);
1457
1458                 Bool condition = (*Pointer<Byte>(data + OFFSET(DrawData, ps.b[boolRegister.index])) != Byte(0));   // FIXME
1459
1460                 if(boolRegister.modifier == Shader::MODIFIER_NOT)
1461                 {
1462                         condition = !condition;
1463                 }
1464
1465                 llvm::BasicBlock *trueBlock = Nucleus::createBasicBlock();
1466                 llvm::BasicBlock *falseBlock = Nucleus::createBasicBlock();
1467
1468                 branch(condition, trueBlock, falseBlock);
1469
1470                 isConditionalIf[ifDepth] = false;
1471                 ifFalseBlock[ifDepth] = falseBlock;
1472
1473                 ifDepth++;
1474         }
1475
1476         void PixelProgram::IFp(const Src &predicateRegister)
1477         {
1478                 Int4 condition = As<Int4>(p0[predicateRegister.swizzle & 0x3]);
1479
1480                 if(predicateRegister.modifier == Shader::MODIFIER_NOT)
1481                 {
1482                         condition = ~condition;
1483                 }
1484
1485                 IF(condition);
1486         }
1487
1488         void PixelProgram::IFC(Vector4f &src0, Vector4f &src1, Control control)
1489         {
1490                 Int4 condition;
1491
1492                 switch(control)
1493                 {
1494                 case Shader::CONTROL_GT: condition = CmpNLE(src0.x, src1.x); break;
1495                 case Shader::CONTROL_EQ: condition = CmpEQ(src0.x, src1.x);  break;
1496                 case Shader::CONTROL_GE: condition = CmpNLT(src0.x, src1.x); break;
1497                 case Shader::CONTROL_LT: condition = CmpLT(src0.x, src1.x);  break;
1498                 case Shader::CONTROL_NE: condition = CmpNEQ(src0.x, src1.x); break;
1499                 case Shader::CONTROL_LE: condition = CmpLE(src0.x, src1.x);  break;
1500                 default:
1501                         ASSERT(false);
1502                 }
1503
1504                 IF(condition);
1505         }
1506
1507         void PixelProgram::IF(Int4 &condition)
1508         {
1509                 condition &= enableStack[enableIndex];
1510
1511                 enableIndex++;
1512                 enableStack[enableIndex] = condition;
1513
1514                 llvm::BasicBlock *trueBlock = Nucleus::createBasicBlock();
1515                 llvm::BasicBlock *falseBlock = Nucleus::createBasicBlock();
1516
1517                 Bool notAllFalse = SignMask(condition) != 0;
1518
1519                 branch(notAllFalse, trueBlock, falseBlock);
1520
1521                 isConditionalIf[ifDepth] = true;
1522                 ifFalseBlock[ifDepth] = falseBlock;
1523
1524                 ifDepth++;
1525                 breakDepth++;
1526         }
1527
1528         void PixelProgram::LABEL(int labelIndex)
1529         {
1530                 if(!labelBlock[labelIndex])
1531                 {
1532                         labelBlock[labelIndex] = Nucleus::createBasicBlock();
1533                 }
1534
1535                 Nucleus::setInsertBlock(labelBlock[labelIndex]);
1536                 currentLabel = labelIndex;
1537         }
1538
1539         void PixelProgram::LOOP(const Src &integerRegister)
1540         {
1541                 loopDepth++;
1542
1543                 iteration[loopDepth] = *Pointer<Int>(data + OFFSET(DrawData, ps.i[integerRegister.index][0]));
1544                 aL[loopDepth] = *Pointer<Int>(data + OFFSET(DrawData, ps.i[integerRegister.index][1]));
1545                 increment[loopDepth] = *Pointer<Int>(data + OFFSET(DrawData, ps.i[integerRegister.index][2]));
1546
1547                 //      If(increment[loopDepth] == 0)
1548                 //      {
1549                 //              increment[loopDepth] = 1;
1550                 //      }
1551
1552                 llvm::BasicBlock *loopBlock = Nucleus::createBasicBlock();
1553                 llvm::BasicBlock *testBlock = Nucleus::createBasicBlock();
1554                 llvm::BasicBlock *endBlock = Nucleus::createBasicBlock();
1555
1556                 loopRepTestBlock[loopRepDepth] = testBlock;
1557                 loopRepEndBlock[loopRepDepth] = endBlock;
1558
1559                 // FIXME: jump(testBlock)
1560                 Nucleus::createBr(testBlock);
1561                 Nucleus::setInsertBlock(testBlock);
1562
1563                 branch(iteration[loopDepth] > 0, loopBlock, endBlock);
1564                 Nucleus::setInsertBlock(loopBlock);
1565
1566                 iteration[loopDepth] = iteration[loopDepth] - 1;   // FIXME: --
1567
1568                 loopRepDepth++;
1569                 breakDepth = 0;
1570         }
1571
1572         void PixelProgram::REP(const Src &integerRegister)
1573         {
1574                 loopDepth++;
1575
1576                 iteration[loopDepth] = *Pointer<Int>(data + OFFSET(DrawData, ps.i[integerRegister.index][0]));
1577                 aL[loopDepth] = aL[loopDepth - 1];
1578
1579                 llvm::BasicBlock *loopBlock = Nucleus::createBasicBlock();
1580                 llvm::BasicBlock *testBlock = Nucleus::createBasicBlock();
1581                 llvm::BasicBlock *endBlock = Nucleus::createBasicBlock();
1582
1583                 loopRepTestBlock[loopRepDepth] = testBlock;
1584                 loopRepEndBlock[loopRepDepth] = endBlock;
1585
1586                 // FIXME: jump(testBlock)
1587                 Nucleus::createBr(testBlock);
1588                 Nucleus::setInsertBlock(testBlock);
1589
1590                 branch(iteration[loopDepth] > 0, loopBlock, endBlock);
1591                 Nucleus::setInsertBlock(loopBlock);
1592
1593                 iteration[loopDepth] = iteration[loopDepth] - 1;   // FIXME: --
1594
1595                 loopRepDepth++;
1596                 breakDepth = 0;
1597         }
1598
1599         void PixelProgram::WHILE(const Src &temporaryRegister)
1600         {
1601                 enableIndex++;
1602
1603                 llvm::BasicBlock *loopBlock = Nucleus::createBasicBlock();
1604                 llvm::BasicBlock *testBlock = Nucleus::createBasicBlock();
1605                 llvm::BasicBlock *endBlock = Nucleus::createBasicBlock();
1606
1607                 loopRepTestBlock[loopRepDepth] = testBlock;
1608                 loopRepEndBlock[loopRepDepth] = endBlock;
1609
1610                 Int4 restoreBreak = enableBreak;
1611                 Int4 restoreContinue = enableContinue;
1612
1613                 // FIXME: jump(testBlock)
1614                 Nucleus::createBr(testBlock);
1615                 Nucleus::setInsertBlock(testBlock);
1616                 enableContinue = restoreContinue;
1617
1618                 const Vector4f &src = fetchRegisterF(temporaryRegister);
1619                 Int4 condition = As<Int4>(src.x);
1620                 condition &= enableStack[enableIndex - 1];
1621                 enableStack[enableIndex] = condition;
1622
1623                 Bool notAllFalse = SignMask(condition) != 0;
1624                 branch(notAllFalse, loopBlock, endBlock);
1625
1626                 Nucleus::setInsertBlock(endBlock);
1627                 enableBreak = restoreBreak;
1628
1629                 Nucleus::setInsertBlock(loopBlock);
1630
1631                 loopRepDepth++;
1632                 breakDepth = 0;
1633         }
1634
1635         void PixelProgram::RET()
1636         {
1637                 if(currentLabel == -1)
1638                 {
1639                         returnBlock = Nucleus::createBasicBlock();
1640                         Nucleus::createBr(returnBlock);
1641                 }
1642                 else
1643                 {
1644                         llvm::BasicBlock *unreachableBlock = Nucleus::createBasicBlock();
1645
1646                         if(callRetBlock[currentLabel].size() > 1)   // Pop the return destination from the call stack
1647                         {
1648                                 // FIXME: Encapsulate
1649                                 UInt index = callStack[--stackIndex];
1650
1651                                 llvm::Value *value = index.loadValue();
1652                                 llvm::Value *switchInst = Nucleus::createSwitch(value, unreachableBlock, (int)callRetBlock[currentLabel].size());
1653
1654                                 for(unsigned int i = 0; i < callRetBlock[currentLabel].size(); i++)
1655                                 {
1656                                         Nucleus::addSwitchCase(switchInst, i, callRetBlock[currentLabel][i]);
1657                                 }
1658                         }
1659                         else if(callRetBlock[currentLabel].size() == 1)   // Jump directly to the unique return destination
1660                         {
1661                                 Nucleus::createBr(callRetBlock[currentLabel][0]);
1662                         }
1663                         else   // Function isn't called
1664                         {
1665                                 Nucleus::createBr(unreachableBlock);
1666                         }
1667
1668                         Nucleus::setInsertBlock(unreachableBlock);
1669                         Nucleus::createUnreachable();
1670                 }
1671         }
1672
1673         void PixelProgram::LEAVE()
1674         {
1675                 enableLeave = enableLeave & ~enableStack[enableIndex];
1676
1677                 // FIXME: Return from function if all instances left
1678                 // FIXME: Use enableLeave in other control-flow constructs
1679         }
1680 }