src/mesa/shader/prog_print.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.5.3
   4  *
   5  * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 /**
  26  * \file prog_print.c
  27  * Print vertex/fragment programs - for debugging.
  28  * \author Brian Paul
  29  */
  30
  31 #include "main/glheader.h"
  32 #include "main/context.h"
  33 #include "main/imports.h"
  34 #include "prog_instruction.h"
  35 #include "prog_parameter.h"
  36 #include "prog_print.h"
  37 #include "prog_statevars.h"
  38
  39
  40
  41 /**
  42  * Return string name for given program/register file.
  43  */
  44 static const char *
  45 file_string(enum register_file f, gl_prog_print_mode mode)
  46 {
  47    switch (f) {
  48    case PROGRAM_TEMPORARY:
  49       return "TEMP";
  50    case PROGRAM_LOCAL_PARAM:
  51       return "LOCAL";
  52    case PROGRAM_ENV_PARAM:
  53       return "ENV";
  54    case PROGRAM_STATE_VAR:
  55       return "STATE";
  56    case PROGRAM_INPUT:
  57       return "INPUT";
  58    case PROGRAM_OUTPUT:
  59       return "OUTPUT";
  60    case PROGRAM_NAMED_PARAM:
  61       return "NAMED";
  62    case PROGRAM_CONSTANT:
  63       return "CONST";
  64    case PROGRAM_UNIFORM:
  65       return "UNIFORM";
  66    case PROGRAM_VARYING:
  67       return "VARYING";
  68    case PROGRAM_WRITE_ONLY:
  69       return "WRITE_ONLY";
  70    case PROGRAM_ADDRESS:
  71       return "ADDR";
  72    case PROGRAM_SAMPLER:
  73       return "SAMPLER";
  74    default:
  75       return "Unknown program file!";
  76    }
  77 }
  78
  79
  80 /**
  81  * Return ARB_v/f_prog-style input attrib string.
  82  */
  83 static const char *
  84 arb_input_attrib_string(GLint index, GLenum progType)
  85 {
  86    const char *vertAttribs[] = {
  87       "vertex.position",
  88       "vertex.weight",
  89       "vertex.normal",
  90       "vertex.color.primary",
  91       "vertex.color.secondary",
  92       "vertex.fogcoord",
  93       "vertex.(six)",
  94       "vertex.(seven)",
  95       "vertex.texcoord[0]",
  96       "vertex.texcoord[1]",
  97       "vertex.texcoord[2]",
  98       "vertex.texcoord[3]",
  99       "vertex.texcoord[4]",
 100       "vertex.texcoord[5]",
 101       "vertex.texcoord[6]",
 102       "vertex.texcoord[7]",
 103       "vertex.attrib[0]",
 104       "vertex.attrib[1]",
 105       "vertex.attrib[2]",
 106       "vertex.attrib[3]",
 107       "vertex.attrib[4]",
 108       "vertex.attrib[5]",
 109       "vertex.attrib[6]",
 110       "vertex.attrib[7]",
 111       "vertex.attrib[8]",
 112       "vertex.attrib[9]",
 113       "vertex.attrib[10]",
 114       "vertex.attrib[11]",
 115       "vertex.attrib[12]",
 116       "vertex.attrib[13]",
 117       "vertex.attrib[14]",
 118       "vertex.attrib[15]"
 119    };
 120    const char *fragAttribs[] = {
 121       "fragment.position",
 122       "fragment.color.primary",
 123       "fragment.color.secondary",
 124       "fragment.fogcoord",
 125       "fragment.texcoord[0]",
 126       "fragment.texcoord[1]",
 127       "fragment.texcoord[2]",
 128       "fragment.texcoord[3]",
 129       "fragment.texcoord[4]",
 130       "fragment.texcoord[5]",
 131       "fragment.texcoord[6]",
 132       "fragment.texcoord[7]",
 133       "fragment.varying[0]",
 134       "fragment.varying[1]",
 135       "fragment.varying[2]",
 136       "fragment.varying[3]",
 137       "fragment.varying[4]",
 138       "fragment.varying[5]",
 139       "fragment.varying[6]",
 140       "fragment.varying[7]"
 141    };
 142
 143    if (progType == GL_VERTEX_PROGRAM_ARB) {
 144       assert(index < sizeof(vertAttribs) / sizeof(vertAttribs[0]));
 145       return vertAttribs[index];
 146    }
 147    else {
 148       assert(index < sizeof(fragAttribs) / sizeof(fragAttribs[0]));
 149       return fragAttribs[index];
 150    }
 151 }
 152
 153
 154 /**
 155  * Return ARB_v/f_prog-style output attrib string.
 156  */
 157 static const char *
 158 arb_output_attrib_string(GLint index, GLenum progType)
 159 {
 160    const char *vertResults[] = {
 161       "result.position",
 162       "result.color.primary",
 163       "result.color.secondary",
 164       "result.fogcoord",
 165       "result.texcoord[0]",
 166       "result.texcoord[1]",
 167       "result.texcoord[2]",
 168       "result.texcoord[3]",
 169       "result.texcoord[4]",
 170       "result.texcoord[5]",
 171       "result.texcoord[6]",
 172       "result.texcoord[7]",
 173       "result.varying[0]",
 174       "result.varying[1]",
 175       "result.varying[2]",
 176       "result.varying[3]",
 177       "result.varying[4]",
 178       "result.varying[5]",
 179       "result.varying[6]",
 180       "result.varying[7]"
 181    };
 182    const char *fragResults[] = {
 183       "result.color",
 184       "result.depth"
 185    };
 186
 187    if (progType == GL_VERTEX_PROGRAM_ARB) {
 188       assert(index < sizeof(vertResults) / sizeof(vertResults[0]));
 189       return vertResults[index];
 190    }
 191    else {
 192       assert(index < sizeof(fragResults) / sizeof(fragResults[0]));
 193       return fragResults[index];
 194    }
 195 }
 196
 197
 198 /**
 199  * Return string representation of the given register.
 200  * Note that some types of registers (like PROGRAM_UNIFORM) aren't defined
 201  * by the ARB/NV program languages so we've taken some liberties here.
 202  * \param file  the register file (PROGRAM_INPUT, PROGRAM_TEMPORARY, etc)
 203  * \param index  number of the register in the register file
 204  * \param mode  the output format/mode/style
 205  * \param prog  pointer to containing program
 206  */
 207 static const char *
 208 reg_string(enum register_file f, GLint index, gl_prog_print_mode mode,
 209            GLboolean relAddr, const struct gl_program *prog)
 210 {
 211    static char str[100];
 212
 213    str[0] = 0;
 214
 215    switch (mode) {
 216    case PROG_PRINT_DEBUG:
 217       if (relAddr)
 218          sprintf(str, "%s[ADDR%s%d]", file_string(f, mode), (index > 0) ? "+" : "", index);
 219       else
 220          sprintf(str, "%s[%d]", file_string(f, mode), index);
 221       break;
 222
 223    case PROG_PRINT_ARB:
 224       switch (f) {
 225       case PROGRAM_INPUT:
 226          sprintf(str, "%s", arb_input_attrib_string(index, prog->Target));
 227          break;
 228       case PROGRAM_OUTPUT:
 229          sprintf(str, "%s", arb_output_attrib_string(index, prog->Target));
 230          break;
 231       case PROGRAM_TEMPORARY:
 232          sprintf(str, "temp%d", index);
 233          break;
 234       case PROGRAM_ENV_PARAM:
 235          sprintf(str, "program.env[%d]", index);
 236          break;
 237       case PROGRAM_LOCAL_PARAM:
 238          sprintf(str, "program.local[%d]", index);
 239          break;
 240       case PROGRAM_VARYING: /* extension */
 241          sprintf(str, "varying[%d]", index);
 242          break;
 243       case PROGRAM_CONSTANT: /* extension */
 244          sprintf(str, "constant[%d]", index);
 245          break;
 246       case PROGRAM_UNIFORM: /* extension */
 247          sprintf(str, "uniform[%d]", index);
 248          break;
 249       case PROGRAM_STATE_VAR:
 250          {
 251             struct gl_program_parameter *param
 252                = prog->Parameters->Parameters + index;
 253             sprintf(str, _mesa_program_state_string(param->StateIndexes));
 254          }
 255          break;
 256       case PROGRAM_ADDRESS:
 257          sprintf(str, "A%d", index);
 258          break;
 259       default:
 260          _mesa_problem(NULL, "bad file in reg_string()");
 261       }
 262       break;
 263
 264    case PROG_PRINT_NV:
 265       switch (f) {
 266       case PROGRAM_INPUT:
 267          if (prog->Target == GL_VERTEX_PROGRAM_ARB)
 268             sprintf(str, "v[%d]", index);
 269          else
 270             sprintf(str, "f[%d]", index);
 271          break;
 272       case PROGRAM_OUTPUT:
 273          sprintf(str, "o[%d]", index);
 274          break;
 275       case PROGRAM_TEMPORARY:
 276          sprintf(str, "R%d", index);
 277          break;
 278       case PROGRAM_ENV_PARAM:
 279          sprintf(str, "c[%d]", index);
 280          break;
 281       case PROGRAM_VARYING: /* extension */
 282          sprintf(str, "varying[%d]", index);
 283          break;
 284       case PROGRAM_UNIFORM: /* extension */
 285          sprintf(str, "uniform[%d]", index);
 286          break;
 287       case PROGRAM_CONSTANT: /* extension */
 288          sprintf(str, "constant[%d]", index);
 289          break;
 290       case PROGRAM_STATE_VAR: /* extension */
 291          sprintf(str, "state[%d]", index);
 292          break;
 293       default:
 294          _mesa_problem(NULL, "bad file in reg_string()");
 295       }
 296       break;
 297
 298    default:
 299       _mesa_problem(NULL, "bad mode in reg_string()");
 300    }
 301
 302    return str;
 303 }
 304
 305
 306 /**
 307  * Return a string representation of the given swizzle word.
 308  * If extended is true, use extended (comma-separated) format.
 309  * \param swizzle  the swizzle field
 310  * \param negateBase  4-bit negation vector
 311  * \param extended  if true, also allow 0, 1 values
 312  */
 313 const char *
 314 _mesa_swizzle_string(GLuint swizzle, GLuint negateBase, GLboolean extended)
 315 {
 316    static const char swz[] = "xyzw01!?";  /* See SWIZZLE_x definitions */
 317    static char s[20];
 318    GLuint i = 0;
 319
 320    if (!extended && swizzle == SWIZZLE_NOOP && negateBase == 0)
 321       return ""; /* no swizzle/negation */
 322
 323    if (!extended)
 324       s[i++] = '.';
 325
 326    if (negateBase & NEGATE_X)
 327       s[i++] = '-';
 328    s[i++] = swz[GET_SWZ(swizzle, 0)];
 329
 330    if (extended) {
 331       s[i++] = ',';
 332    }
 333
 334    if (negateBase & NEGATE_Y)
 335       s[i++] = '-';
 336    s[i++] = swz[GET_SWZ(swizzle, 1)];
 337
 338    if (extended) {
 339       s[i++] = ',';
 340    }
 341
 342    if (negateBase & NEGATE_Z)
 343       s[i++] = '-';
 344    s[i++] = swz[GET_SWZ(swizzle, 2)];
 345
 346    if (extended) {
 347       s[i++] = ',';
 348    }
 349
 350    if (negateBase & NEGATE_W)
 351       s[i++] = '-';
 352    s[i++] = swz[GET_SWZ(swizzle, 3)];
 353
 354    s[i] = 0;
 355    return s;
 356 }
 357
 358
 359 void
 360 _mesa_print_swizzle(GLuint swizzle)
 361 {
 362    if (swizzle == SWIZZLE_XYZW) {
 363       _mesa_printf(".xyzw\n");
 364    }
 365    else {
 366       const char *s = _mesa_swizzle_string(swizzle, 0, 0);
 367       _mesa_printf("%s\n", s);
 368    }
 369 }
 370
 371
 372 static const char *
 373 writemask_string(GLuint writeMask)
 374 {
 375    static char s[10];
 376    GLuint i = 0;
 377
 378    if (writeMask == WRITEMASK_XYZW)
 379       return "";
 380
 381    s[i++] = '.';
 382    if (writeMask & WRITEMASK_X)
 383       s[i++] = 'x';
 384    if (writeMask & WRITEMASK_Y)
 385       s[i++] = 'y';
 386    if (writeMask & WRITEMASK_Z)
 387       s[i++] = 'z';
 388    if (writeMask & WRITEMASK_W)
 389       s[i++] = 'w';
 390
 391    s[i] = 0;
 392    return s;
 393 }
 394
 395
 396 const char *
 397 _mesa_condcode_string(GLuint condcode)
 398 {
 399    switch (condcode) {
 400    case COND_GT:  return "GT";
 401    case COND_EQ:  return "EQ";
 402    case COND_LT:  return "LT";
 403    case COND_UN:  return "UN";
 404    case COND_GE:  return "GE";
 405    case COND_LE:  return "LE";
 406    case COND_NE:  return "NE";
 407    case COND_TR:  return "TR";
 408    case COND_FL:  return "FL";
 409    default: return "cond???";
 410    }
 411 }
 412
 413
 414 static void
 415 print_dst_reg(const struct prog_dst_register *dstReg, gl_prog_print_mode mode,
 416               const struct gl_program *prog)
 417 {
 418    _mesa_printf("%s%s",
 419                 reg_string((enum register_file) dstReg->File,
 420                            dstReg->Index, mode, GL_FALSE, prog),
 421                 writemask_string(dstReg->WriteMask));
 422
 423    if (dstReg->CondMask != COND_TR) {
 424       _mesa_printf(" (%s.%s)",
 425                    _mesa_condcode_string(dstReg->CondMask),
 426                    _mesa_swizzle_string(dstReg->CondSwizzle, GL_FALSE, GL_FALSE));
 427    }
 428
 429 #if 0
 430    _mesa_printf("%s[%d]%s",
 431                 file_string((enum register_file) dstReg->File, mode),
 432                 dstReg->Index,
 433                 writemask_string(dstReg->WriteMask));
 434 #endif
 435 }
 436
 437 static void
 438 print_src_reg(const struct prog_src_register *srcReg, gl_prog_print_mode mode,
 439               const struct gl_program *prog)
 440 {
 441    _mesa_printf("%s%s",
 442                 reg_string((enum register_file) srcReg->File,
 443                            srcReg->Index, mode, srcReg->RelAddr, prog),
 444                 _mesa_swizzle_string(srcReg->Swizzle,
 445                                      srcReg->NegateBase, GL_FALSE));
 446 #if 0
 447    _mesa_printf("%s[%d]%s",
 448                 file_string((enum register_file) srcReg->File, mode),
 449                 srcReg->Index,
 450                 _mesa_swizzle_string(srcReg->Swizzle,
 451                                srcReg->NegateBase, GL_FALSE));
 452 #endif
 453 }
 454
 455 static void
 456 print_comment(const struct prog_instruction *inst)
 457 {
 458    if (inst->Comment)
 459       _mesa_printf(";  # %s\n", inst->Comment);
 460    else
 461       _mesa_printf(";\n");
 462 }
 463
 464
 465 static void
 466 print_alu_instruction(const struct prog_instruction *inst,
 467                       const char *opcode_string, GLuint numRegs,
 468                       gl_prog_print_mode mode,
 469                       const struct gl_program *prog)
 470 {
 471    GLuint j;
 472
 473    _mesa_printf("%s", opcode_string);
 474    if (inst->CondUpdate)
 475       _mesa_printf(".C");
 476
 477    /* frag prog only */
 478    if (inst->SaturateMode == SATURATE_ZERO_ONE)
 479       _mesa_printf("_SAT");
 480
 481    _mesa_printf(" ");
 482    if (inst->DstReg.File != PROGRAM_UNDEFINED) {
 483       print_dst_reg(&inst->DstReg, mode, prog);
 484    }
 485    else {
 486       _mesa_printf(" ???");
 487    }
 488
 489    if (numRegs > 0)
 490       _mesa_printf(", ");
 491
 492    for (j = 0; j < numRegs; j++) {
 493       print_src_reg(inst->SrcReg + j, mode, prog);
 494       if (j + 1 < numRegs)
 495          _mesa_printf(", ");
 496    }
 497
 498    print_comment(inst);
 499 }
 500
 501
 502 void
 503 _mesa_print_alu_instruction(const struct prog_instruction *inst,
 504                             const char *opcode_string, GLuint numRegs)
 505 {
 506    print_alu_instruction(inst, opcode_string, numRegs, PROG_PRINT_DEBUG, NULL);
 507 }
 508
 509
 510 void
 511 _mesa_print_instruction(const struct prog_instruction *inst)
 512 {
 513    /* note: 4th param should be ignored for PROG_PRINT_DEBUG */
 514    _mesa_print_instruction_opt(inst, 0, PROG_PRINT_DEBUG, NULL);
 515 }
 516
 517
 518 /**
 519  * Print a single vertex/fragment program instruction.
 520  */
 521 GLint
 522 _mesa_print_instruction_opt(const struct prog_instruction *inst, GLint indent,
 523                             gl_prog_print_mode mode,
 524                             const struct gl_program *prog)
 525 {
 526    GLint i;
 527
 528    if (inst->Opcode == OPCODE_ELSE ||
 529        inst->Opcode == OPCODE_ENDIF ||
 530        inst->Opcode == OPCODE_ENDLOOP ||
 531        inst->Opcode == OPCODE_ENDSUB) {
 532       indent -= 3;
 533    }
 534    for (i = 0; i < indent; i++) {
 535       _mesa_printf(" ");
 536    }
 537
 538    switch (inst->Opcode) {
 539    case OPCODE_PRINT:
 540       _mesa_printf("PRINT '%s'", inst->Data);
 541       if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) {
 542          _mesa_printf(", ");
 543          _mesa_printf("%s[%d]%s",
 544                       file_string((enum register_file) inst->SrcReg[0].File,
 545                                   mode),
 546                       inst->SrcReg[0].Index,
 547                       _mesa_swizzle_string(inst->SrcReg[0].Swizzle,
 548                                            inst->SrcReg[0].NegateBase, GL_FALSE));
 549       }
 550       if (inst->Comment)
 551          _mesa_printf("  # %s", inst->Comment);
 552       print_comment(inst);
 553       break;
 554    case OPCODE_SWZ:
 555       _mesa_printf("SWZ");
 556       if (inst->SaturateMode == SATURATE_ZERO_ONE)
 557          _mesa_printf("_SAT");
 558       _mesa_printf(" ");
 559       print_dst_reg(&inst->DstReg, mode, prog);
 560       _mesa_printf(", %s[%d], %s",
 561                    file_string((enum register_file) inst->SrcReg[0].File,
 562                                mode),
 563                    inst->SrcReg[0].Index,
 564                    _mesa_swizzle_string(inst->SrcReg[0].Swizzle,
 565                                         inst->SrcReg[0].NegateBase, GL_TRUE));
 566       print_comment(inst);
 567       break;
 568    case OPCODE_TEX:
 569    case OPCODE_TXP:
 570    case OPCODE_TXL:
 571    case OPCODE_TXB:
 572       _mesa_printf("%s", _mesa_opcode_string(inst->Opcode));
 573       if (inst->SaturateMode == SATURATE_ZERO_ONE)
 574          _mesa_printf("_SAT");
 575       _mesa_printf(" ");
 576       print_dst_reg(&inst->DstReg, mode, prog);
 577       _mesa_printf(", ");
 578       print_src_reg(&inst->SrcReg[0], mode, prog);
 579       _mesa_printf(", texture[%d], ", inst->TexSrcUnit);
 580       switch (inst->TexSrcTarget) {
 581       case TEXTURE_1D_INDEX:   _mesa_printf("1D");    break;
 582       case TEXTURE_2D_INDEX:   _mesa_printf("2D");    break;
 583       case TEXTURE_3D_INDEX:   _mesa_printf("3D");    break;
 584       case TEXTURE_CUBE_INDEX: _mesa_printf("CUBE");  break;
 585       case TEXTURE_RECT_INDEX: _mesa_printf("RECT");  break;
 586       default:
 587          ;
 588       }
 589       print_comment(inst);
 590       break;
 591
 592    case OPCODE_KIL:
 593       _mesa_printf("%s", _mesa_opcode_string(inst->Opcode));
 594       _mesa_printf(" ");
 595       print_src_reg(&inst->SrcReg[0], mode, prog);
 596       print_comment(inst);
 597       break;
 598    case OPCODE_KIL_NV:
 599       _mesa_printf("%s", _mesa_opcode_string(inst->Opcode));
 600       _mesa_printf(" ");
 601       _mesa_printf("%s.%s",
 602                    _mesa_condcode_string(inst->DstReg.CondMask),
 603                    _mesa_swizzle_string(inst->DstReg.CondSwizzle,
 604                                         GL_FALSE, GL_FALSE));
 605       print_comment(inst);
 606       break;
 607
 608    case OPCODE_ARL:
 609       _mesa_printf("ARL ");
 610       print_dst_reg(&inst->DstReg, mode, prog);
 611       _mesa_printf(", ");
 612       print_src_reg(&inst->SrcReg[0], mode, prog);
 613       print_comment(inst);
 614       break;
 615    case OPCODE_BRA:
 616       _mesa_printf("BRA %d (%s%s)",
 617                    inst->BranchTarget,
 618                    _mesa_condcode_string(inst->DstReg.CondMask),
 619                    _mesa_swizzle_string(inst->DstReg.CondSwizzle, 0, GL_FALSE));
 620       print_comment(inst);
 621       break;
 622    case OPCODE_IF:
 623       if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) {
 624          /* Use ordinary register */
 625          _mesa_printf("IF ");
 626          print_src_reg(&inst->SrcReg[0], mode, prog);
 627          _mesa_printf("; ");
 628       }
 629       else {
 630          /* Use cond codes */
 631          _mesa_printf("IF (%s%s);",
 632                       _mesa_condcode_string(inst->DstReg.CondMask),
 633                       _mesa_swizzle_string(inst->DstReg.CondSwizzle,
 634                                            0, GL_FALSE));
 635       }
 636       _mesa_printf(" # (if false, goto %d)", inst->BranchTarget);
 637       print_comment(inst);
 638       return indent + 3;
 639    case OPCODE_ELSE:
 640       _mesa_printf("ELSE; # (goto %d)\n", inst->BranchTarget);
 641       return indent + 3;
 642    case OPCODE_ENDIF:
 643       _mesa_printf("ENDIF;\n");
 644       break;
 645    case OPCODE_BGNLOOP:
 646       _mesa_printf("BGNLOOP; # (end at %d)\n", inst->BranchTarget);
 647       return indent + 3;
 648    case OPCODE_ENDLOOP:
 649       _mesa_printf("ENDLOOP; # (goto %d)\n", inst->BranchTarget);
 650       break;
 651    case OPCODE_BRK:
 652    case OPCODE_CONT:
 653       _mesa_printf("%s (%s%s); # (goto %d)",
 654                    _mesa_opcode_string(inst->Opcode),
 655                    _mesa_condcode_string(inst->DstReg.CondMask),
 656                    _mesa_swizzle_string(inst->DstReg.CondSwizzle, 0, GL_FALSE),
 657                    inst->BranchTarget);
 658       print_comment(inst);
 659       break;
 660
 661    case OPCODE_BGNSUB:
 662       if (mode == PROG_PRINT_NV) {
 663          _mesa_printf("%s:\n", inst->Comment); /* comment is label */
 664          return indent;
 665       }
 666       else {
 667          _mesa_printf("BGNSUB");
 668          print_comment(inst);
 669          return indent + 3;
 670       }
 671    case OPCODE_ENDSUB:
 672       if (mode == PROG_PRINT_DEBUG) {
 673          _mesa_printf("ENDSUB");
 674          print_comment(inst);
 675       }
 676       break;
 677    case OPCODE_CAL:
 678       if (mode == PROG_PRINT_NV) {
 679          _mesa_printf("CAL %s;  # (goto %d)\n", inst->Comment, inst->BranchTarget);
 680       }
 681       else {
 682          _mesa_printf("CAL %u", inst->BranchTarget);
 683          print_comment(inst);
 684       }
 685       break;
 686    case OPCODE_RET:
 687       _mesa_printf("RET (%s%s)",
 688                    _mesa_condcode_string(inst->DstReg.CondMask),
 689                    _mesa_swizzle_string(inst->DstReg.CondSwizzle, 0, GL_FALSE));
 690       print_comment(inst);
 691       break;
 692
 693    case OPCODE_END:
 694       _mesa_printf("END\n");
 695       break;
 696    case OPCODE_NOP:
 697       if (mode == PROG_PRINT_DEBUG) {
 698          _mesa_printf("NOP");
 699          print_comment(inst);
 700       }
 701       else if (inst->Comment) {
 702          /* ARB/NV extensions don't have NOP instruction */
 703          _mesa_printf("# %s\n", inst->Comment);
 704       }
 705       break;
 706    /* XXX may need other special-case instructions */
 707    default:
 708       /* typical alu instruction */
 709       print_alu_instruction(inst,
 710                             _mesa_opcode_string(inst->Opcode),
 711                             _mesa_num_inst_src_regs(inst->Opcode),
 712                             mode, prog);
 713       break;
 714    }
 715    return indent;
 716 }
 717
 718
 719 /**
 720  * Print program to stdout, default options.
 721  */
 722 void
 723 _mesa_print_program(const struct gl_program *prog)
 724 {
 725    _mesa_print_program_opt(prog, PROG_PRINT_DEBUG, GL_TRUE);
 726 }
 727
 728
 729 /**
 730  * Print program, with options.
 731  */
 732 void
 733 _mesa_print_program_opt(const struct gl_program *prog,
 734                         gl_prog_print_mode mode,
 735                         GLboolean lineNumbers)
 736 {
 737    GLuint i, indent = 0;
 738
 739    switch (prog->Target) {
 740    case GL_VERTEX_PROGRAM_ARB:
 741       if (mode == PROG_PRINT_ARB)
 742          _mesa_printf("!!ARBvp1.0\n");
 743       else if (mode == PROG_PRINT_NV)
 744          _mesa_printf("!!VP1.0\n");
 745       else
 746          _mesa_printf("# Vertex Program/Shader\n");
 747       break;
 748    case GL_FRAGMENT_PROGRAM_ARB:
 749    case GL_FRAGMENT_PROGRAM_NV:
 750       if (mode == PROG_PRINT_ARB)
 751          _mesa_printf("!!ARBfp1.0\n");
 752       else if (mode == PROG_PRINT_NV)
 753          _mesa_printf("!!FP1.0\n");
 754       else
 755          _mesa_printf("# Fragment Program/Shader\n");
 756       break;
 757    }
 758
 759    for (i = 0; i < prog->NumInstructions; i++) {
 760       if (lineNumbers)
 761          _mesa_printf("%3d: ", i);
 762       indent = _mesa_print_instruction_opt(prog->Instructions + i,
 763                                            indent, mode, prog);
 764    }
 765 }
 766
 767
 768 /**
 769  * Print all of a program's parameters.
 770  */
 771 void
 772 _mesa_print_program_parameters(GLcontext *ctx, const struct gl_program *prog)
 773 {
 774    GLuint i;
 775
 776    _mesa_printf("InputsRead: 0x%x\n", prog->InputsRead);
 777    _mesa_printf("OutputsWritten: 0x%x\n", prog->OutputsWritten);
 778    _mesa_printf("NumInstructions=%d\n", prog->NumInstructions);
 779    _mesa_printf("NumTemporaries=%d\n", prog->NumTemporaries);
 780    _mesa_printf("NumParameters=%d\n", prog->NumParameters);
 781    _mesa_printf("NumAttributes=%d\n", prog->NumAttributes);
 782    _mesa_printf("NumAddressRegs=%d\n", prog->NumAddressRegs);
 783    _mesa_printf("Samplers=[ ");
 784    for (i = 0; i < MAX_SAMPLERS; i++) {
 785       _mesa_printf("%d ", prog->SamplerUnits[i]);
 786    }
 787    _mesa_printf("]\n");
 788
 789    _mesa_load_state_parameters(ctx, prog->Parameters);
 790
 791 #if 0
 792    _mesa_printf("Local Params:\n");
 793    for (i = 0; i < MAX_PROGRAM_LOCAL_PARAMS; i++){
 794       const GLfloat *p = prog->LocalParams[i];
 795       _mesa_printf("%2d: %f, %f, %f, %f\n", i, p[0], p[1], p[2], p[3]);
 796    }
 797 #endif
 798    _mesa_print_parameter_list(prog->Parameters);
 799 }
 800
 801
 802 void
 803 _mesa_print_parameter_list(const struct gl_program_parameter_list *list)
 804 {
 805    const gl_prog_print_mode mode = PROG_PRINT_DEBUG;
 806    GLuint i;
 807
 808    if (!list)
 809       return;
 810
 811    _mesa_printf("param list %p\n", (void *) list);
 812    for (i = 0; i < list->NumParameters; i++){
 813       struct gl_program_parameter *param = list->Parameters + i;
 814       const GLfloat *v = list->ParameterValues[i];
 815       _mesa_printf("param[%d] sz=%d %s %s = {%.3g, %.3g, %.3g, %.3g};\n",
 816                    i, param->Size,
 817                    file_string(list->Parameters[i].Type, mode),
 818                    param->Name, v[0], v[1], v[2], v[3]);
 819    }
 820 }