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             char *state = _mesa_program_state_string(param->StateIndexes);
 254             sprintf(str, state);
 255             _mesa_free(state);
 256          }
 257          break;
 258       case PROGRAM_ADDRESS:
 259          sprintf(str, "A%d", index);
 260          break;
 261       default:
 262          _mesa_problem(NULL, "bad file in reg_string()");
 263       }
 264       break;
 265
 266    case PROG_PRINT_NV:
 267       switch (f) {
 268       case PROGRAM_INPUT:
 269          if (prog->Target == GL_VERTEX_PROGRAM_ARB)
 270             sprintf(str, "v[%d]", index);
 271          else
 272             sprintf(str, "f[%d]", index);
 273          break;
 274       case PROGRAM_OUTPUT:
 275          sprintf(str, "o[%d]", index);
 276          break;
 277       case PROGRAM_TEMPORARY:
 278          sprintf(str, "R%d", index);
 279          break;
 280       case PROGRAM_ENV_PARAM:
 281          sprintf(str, "c[%d]", index);
 282          break;
 283       case PROGRAM_VARYING: /* extension */
 284          sprintf(str, "varying[%d]", index);
 285          break;
 286       case PROGRAM_UNIFORM: /* extension */
 287          sprintf(str, "uniform[%d]", index);
 288          break;
 289       case PROGRAM_CONSTANT: /* extension */
 290          sprintf(str, "constant[%d]", index);
 291          break;
 292       case PROGRAM_STATE_VAR: /* extension */
 293          sprintf(str, "state[%d]", index);
 294          break;
 295       default:
 296          _mesa_problem(NULL, "bad file in reg_string()");
 297       }
 298       break;
 299
 300    default:
 301       _mesa_problem(NULL, "bad mode in reg_string()");
 302    }
 303
 304    return str;
 305 }
 306
 307
 308 /**
 309  * Return a string representation of the given swizzle word.
 310  * If extended is true, use extended (comma-separated) format.
 311  * \param swizzle  the swizzle field
 312  * \param negateBase  4-bit negation vector
 313  * \param extended  if true, also allow 0, 1 values
 314  */
 315 const char *
 316 _mesa_swizzle_string(GLuint swizzle, GLuint negateBase, GLboolean extended)
 317 {
 318    static const char swz[] = "xyzw01!?";  /* See SWIZZLE_x definitions */
 319    static char s[20];
 320    GLuint i = 0;
 321
 322    if (!extended && swizzle == SWIZZLE_NOOP && negateBase == 0)
 323       return ""; /* no swizzle/negation */
 324
 325    if (!extended)
 326       s[i++] = '.';
 327
 328    if (negateBase & NEGATE_X)
 329       s[i++] = '-';
 330    s[i++] = swz[GET_SWZ(swizzle, 0)];
 331
 332    if (extended) {
 333       s[i++] = ',';
 334    }
 335
 336    if (negateBase & NEGATE_Y)
 337       s[i++] = '-';
 338    s[i++] = swz[GET_SWZ(swizzle, 1)];
 339
 340    if (extended) {
 341       s[i++] = ',';
 342    }
 343
 344    if (negateBase & NEGATE_Z)
 345       s[i++] = '-';
 346    s[i++] = swz[GET_SWZ(swizzle, 2)];
 347
 348    if (extended) {
 349       s[i++] = ',';
 350    }
 351
 352    if (negateBase & NEGATE_W)
 353       s[i++] = '-';
 354    s[i++] = swz[GET_SWZ(swizzle, 3)];
 355
 356    s[i] = 0;
 357    return s;
 358 }
 359
 360
 361 void
 362 _mesa_print_swizzle(GLuint swizzle)
 363 {
 364    if (swizzle == SWIZZLE_XYZW) {
 365       _mesa_printf(".xyzw\n");
 366    }
 367    else {
 368       const char *s = _mesa_swizzle_string(swizzle, 0, 0);
 369       _mesa_printf("%s\n", s);
 370    }
 371 }
 372
 373
 374 static const char *
 375 writemask_string(GLuint writeMask)
 376 {
 377    static char s[10];
 378    GLuint i = 0;
 379
 380    if (writeMask == WRITEMASK_XYZW)
 381       return "";
 382
 383    s[i++] = '.';
 384    if (writeMask & WRITEMASK_X)
 385       s[i++] = 'x';
 386    if (writeMask & WRITEMASK_Y)
 387       s[i++] = 'y';
 388    if (writeMask & WRITEMASK_Z)
 389       s[i++] = 'z';
 390    if (writeMask & WRITEMASK_W)
 391       s[i++] = 'w';
 392
 393    s[i] = 0;
 394    return s;
 395 }
 396
 397
 398 const char *
 399 _mesa_condcode_string(GLuint condcode)
 400 {
 401    switch (condcode) {
 402    case COND_GT:  return "GT";
 403    case COND_EQ:  return "EQ";
 404    case COND_LT:  return "LT";
 405    case COND_UN:  return "UN";
 406    case COND_GE:  return "GE";
 407    case COND_LE:  return "LE";
 408    case COND_NE:  return "NE";
 409    case COND_TR:  return "TR";
 410    case COND_FL:  return "FL";
 411    default: return "cond???";
 412    }
 413 }
 414
 415
 416 static void
 417 print_dst_reg(const struct prog_dst_register *dstReg, gl_prog_print_mode mode,
 418               const struct gl_program *prog)
 419 {
 420    _mesa_printf("%s%s",
 421                 reg_string((enum register_file) dstReg->File,
 422                            dstReg->Index, mode, GL_FALSE, prog),
 423                 writemask_string(dstReg->WriteMask));
 424
 425    if (dstReg->CondMask != COND_TR) {
 426       _mesa_printf(" (%s.%s)",
 427                    _mesa_condcode_string(dstReg->CondMask),
 428                    _mesa_swizzle_string(dstReg->CondSwizzle, GL_FALSE, GL_FALSE));
 429    }
 430
 431 #if 0
 432    _mesa_printf("%s[%d]%s",
 433                 file_string((enum register_file) dstReg->File, mode),
 434                 dstReg->Index,
 435                 writemask_string(dstReg->WriteMask));
 436 #endif
 437 }
 438
 439 static void
 440 print_src_reg(const struct prog_src_register *srcReg, gl_prog_print_mode mode,
 441               const struct gl_program *prog)
 442 {
 443    _mesa_printf("%s%s",
 444                 reg_string((enum register_file) srcReg->File,
 445                            srcReg->Index, mode, srcReg->RelAddr, prog),
 446                 _mesa_swizzle_string(srcReg->Swizzle,
 447                                      srcReg->NegateBase, GL_FALSE));
 448 #if 0
 449    _mesa_printf("%s[%d]%s",
 450                 file_string((enum register_file) srcReg->File, mode),
 451                 srcReg->Index,
 452                 _mesa_swizzle_string(srcReg->Swizzle,
 453                                srcReg->NegateBase, GL_FALSE));
 454 #endif
 455 }
 456
 457 static void
 458 print_comment(const struct prog_instruction *inst)
 459 {
 460    if (inst->Comment)
 461       _mesa_printf(";  # %s\n", inst->Comment);
 462    else
 463       _mesa_printf(";\n");
 464 }
 465
 466
 467 static void
 468 print_alu_instruction(const struct prog_instruction *inst,
 469                       const char *opcode_string, GLuint numRegs,
 470                       gl_prog_print_mode mode,
 471                       const struct gl_program *prog)
 472 {
 473    GLuint j;
 474
 475    _mesa_printf("%s", opcode_string);
 476    if (inst->CondUpdate)
 477       _mesa_printf(".C");
 478
 479    /* frag prog only */
 480    if (inst->SaturateMode == SATURATE_ZERO_ONE)
 481       _mesa_printf("_SAT");
 482
 483    _mesa_printf(" ");
 484    if (inst->DstReg.File != PROGRAM_UNDEFINED) {
 485       print_dst_reg(&inst->DstReg, mode, prog);
 486    }
 487    else {
 488       _mesa_printf(" ???");
 489    }
 490
 491    if (numRegs > 0)
 492       _mesa_printf(", ");
 493
 494    for (j = 0; j < numRegs; j++) {
 495       print_src_reg(inst->SrcReg + j, mode, prog);
 496       if (j + 1 < numRegs)
 497          _mesa_printf(", ");
 498    }
 499
 500    print_comment(inst);
 501 }
 502
 503
 504 void
 505 _mesa_print_alu_instruction(const struct prog_instruction *inst,
 506                             const char *opcode_string, GLuint numRegs)
 507 {
 508    print_alu_instruction(inst, opcode_string, numRegs, PROG_PRINT_DEBUG, NULL);
 509 }
 510
 511
 512 void
 513 _mesa_print_instruction(const struct prog_instruction *inst)
 514 {
 515    /* note: 4th param should be ignored for PROG_PRINT_DEBUG */
 516    _mesa_print_instruction_opt(inst, 0, PROG_PRINT_DEBUG, NULL);
 517 }
 518
 519
 520 /**
 521  * Print a single vertex/fragment program instruction.
 522  */
 523 GLint
 524 _mesa_print_instruction_opt(const struct prog_instruction *inst, GLint indent,
 525                             gl_prog_print_mode mode,
 526                             const struct gl_program *prog)
 527 {
 528    GLint i;
 529
 530    if (inst->Opcode == OPCODE_ELSE ||
 531        inst->Opcode == OPCODE_ENDIF ||
 532        inst->Opcode == OPCODE_ENDLOOP ||
 533        inst->Opcode == OPCODE_ENDSUB) {
 534       indent -= 3;
 535    }
 536    for (i = 0; i < indent; i++) {
 537       _mesa_printf(" ");
 538    }
 539
 540    switch (inst->Opcode) {
 541    case OPCODE_PRINT:
 542       _mesa_printf("PRINT '%s'", inst->Data);
 543       if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) {
 544          _mesa_printf(", ");
 545          _mesa_printf("%s[%d]%s",
 546                       file_string((enum register_file) inst->SrcReg[0].File,
 547                                   mode),
 548                       inst->SrcReg[0].Index,
 549                       _mesa_swizzle_string(inst->SrcReg[0].Swizzle,
 550                                            inst->SrcReg[0].NegateBase, GL_FALSE));
 551       }
 552       if (inst->Comment)
 553          _mesa_printf("  # %s", inst->Comment);
 554       print_comment(inst);
 555       break;
 556    case OPCODE_SWZ:
 557       _mesa_printf("SWZ");
 558       if (inst->SaturateMode == SATURATE_ZERO_ONE)
 559          _mesa_printf("_SAT");
 560       _mesa_printf(" ");
 561       print_dst_reg(&inst->DstReg, mode, prog);
 562       _mesa_printf(", %s[%d], %s",
 563                    file_string((enum register_file) inst->SrcReg[0].File,
 564                                mode),
 565                    inst->SrcReg[0].Index,
 566                    _mesa_swizzle_string(inst->SrcReg[0].Swizzle,
 567                                         inst->SrcReg[0].NegateBase, GL_TRUE));
 568       print_comment(inst);
 569       break;
 570    case OPCODE_TEX:
 571    case OPCODE_TXP:
 572    case OPCODE_TXL:
 573    case OPCODE_TXB:
 574       _mesa_printf("%s", _mesa_opcode_string(inst->Opcode));
 575       if (inst->SaturateMode == SATURATE_ZERO_ONE)
 576          _mesa_printf("_SAT");
 577       _mesa_printf(" ");
 578       print_dst_reg(&inst->DstReg, mode, prog);
 579       _mesa_printf(", ");
 580       print_src_reg(&inst->SrcReg[0], mode, prog);
 581       _mesa_printf(", texture[%d], ", inst->TexSrcUnit);
 582       switch (inst->TexSrcTarget) {
 583       case TEXTURE_1D_INDEX:   _mesa_printf("1D");    break;
 584       case TEXTURE_2D_INDEX:   _mesa_printf("2D");    break;
 585       case TEXTURE_3D_INDEX:   _mesa_printf("3D");    break;
 586       case TEXTURE_CUBE_INDEX: _mesa_printf("CUBE");  break;
 587       case TEXTURE_RECT_INDEX: _mesa_printf("RECT");  break;
 588       default:
 589          ;
 590       }
 591       print_comment(inst);
 592       break;
 593
 594    case OPCODE_KIL:
 595       _mesa_printf("%s", _mesa_opcode_string(inst->Opcode));
 596       _mesa_printf(" ");
 597       print_src_reg(&inst->SrcReg[0], mode, prog);
 598       print_comment(inst);
 599       break;
 600    case OPCODE_KIL_NV:
 601       _mesa_printf("%s", _mesa_opcode_string(inst->Opcode));
 602       _mesa_printf(" ");
 603       _mesa_printf("%s.%s",
 604                    _mesa_condcode_string(inst->DstReg.CondMask),
 605                    _mesa_swizzle_string(inst->DstReg.CondSwizzle,
 606                                         GL_FALSE, GL_FALSE));
 607       print_comment(inst);
 608       break;
 609
 610    case OPCODE_ARL:
 611       _mesa_printf("ARL ");
 612       print_dst_reg(&inst->DstReg, mode, prog);
 613       _mesa_printf(", ");
 614       print_src_reg(&inst->SrcReg[0], mode, prog);
 615       print_comment(inst);
 616       break;
 617    case OPCODE_BRA:
 618       _mesa_printf("BRA %d (%s%s)",
 619                    inst->BranchTarget,
 620                    _mesa_condcode_string(inst->DstReg.CondMask),
 621                    _mesa_swizzle_string(inst->DstReg.CondSwizzle, 0, GL_FALSE));
 622       print_comment(inst);
 623       break;
 624    case OPCODE_IF:
 625       if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) {
 626          /* Use ordinary register */
 627          _mesa_printf("IF ");
 628          print_src_reg(&inst->SrcReg[0], mode, prog);
 629          _mesa_printf("; ");
 630       }
 631       else {
 632          /* Use cond codes */
 633          _mesa_printf("IF (%s%s);",
 634                       _mesa_condcode_string(inst->DstReg.CondMask),
 635                       _mesa_swizzle_string(inst->DstReg.CondSwizzle,
 636                                            0, GL_FALSE));
 637       }
 638       _mesa_printf(" # (if false, goto %d)", inst->BranchTarget);
 639       print_comment(inst);
 640       return indent + 3;
 641    case OPCODE_ELSE:
 642       _mesa_printf("ELSE; # (goto %d)\n", inst->BranchTarget);
 643       return indent + 3;
 644    case OPCODE_ENDIF:
 645       _mesa_printf("ENDIF;\n");
 646       break;
 647    case OPCODE_BGNLOOP:
 648       _mesa_printf("BGNLOOP; # (end at %d)\n", inst->BranchTarget);
 649       return indent + 3;
 650    case OPCODE_ENDLOOP:
 651       _mesa_printf("ENDLOOP; # (goto %d)\n", inst->BranchTarget);
 652       break;
 653    case OPCODE_BRK:
 654    case OPCODE_CONT:
 655       _mesa_printf("%s (%s%s); # (goto %d)",
 656                    _mesa_opcode_string(inst->Opcode),
 657                    _mesa_condcode_string(inst->DstReg.CondMask),
 658                    _mesa_swizzle_string(inst->DstReg.CondSwizzle, 0, GL_FALSE),
 659                    inst->BranchTarget);
 660       print_comment(inst);
 661       break;
 662
 663    case OPCODE_BGNSUB:
 664       if (mode == PROG_PRINT_NV) {
 665          _mesa_printf("%s:\n", inst->Comment); /* comment is label */
 666          return indent;
 667       }
 668       else {
 669          _mesa_printf("BGNSUB");
 670          print_comment(inst);
 671          return indent + 3;
 672       }
 673    case OPCODE_ENDSUB:
 674       if (mode == PROG_PRINT_DEBUG) {
 675          _mesa_printf("ENDSUB");
 676          print_comment(inst);
 677       }
 678       break;
 679    case OPCODE_CAL:
 680       if (mode == PROG_PRINT_NV) {
 681          _mesa_printf("CAL %s;  # (goto %d)\n", inst->Comment, inst->BranchTarget);
 682       }
 683       else {
 684          _mesa_printf("CAL %u", inst->BranchTarget);
 685          print_comment(inst);
 686       }
 687       break;
 688    case OPCODE_RET:
 689       _mesa_printf("RET (%s%s)",
 690                    _mesa_condcode_string(inst->DstReg.CondMask),
 691                    _mesa_swizzle_string(inst->DstReg.CondSwizzle, 0, GL_FALSE));
 692       print_comment(inst);
 693       break;
 694
 695    case OPCODE_END:
 696       _mesa_printf("END\n");
 697       break;
 698    case OPCODE_NOP:
 699       if (mode == PROG_PRINT_DEBUG) {
 700          _mesa_printf("NOP");
 701          print_comment(inst);
 702       }
 703       else if (inst->Comment) {
 704          /* ARB/NV extensions don't have NOP instruction */
 705          _mesa_printf("# %s\n", inst->Comment);
 706       }
 707       break;
 708    /* XXX may need other special-case instructions */
 709    default:
 710       /* typical alu instruction */
 711       print_alu_instruction(inst,
 712                             _mesa_opcode_string(inst->Opcode),
 713                             _mesa_num_inst_src_regs(inst->Opcode),
 714                             mode, prog);
 715       break;
 716    }
 717    return indent;
 718 }
 719
 720
 721 /**
 722  * Print program to stdout, default options.
 723  */
 724 void
 725 _mesa_print_program(const struct gl_program *prog)
 726 {
 727    _mesa_print_program_opt(prog, PROG_PRINT_DEBUG, GL_TRUE);
 728 }
 729
 730
 731 /**
 732  * Print program, with options.
 733  */
 734 void
 735 _mesa_print_program_opt(const struct gl_program *prog,
 736                         gl_prog_print_mode mode,
 737                         GLboolean lineNumbers)
 738 {
 739    GLuint i, indent = 0;
 740
 741    switch (prog->Target) {
 742    case GL_VERTEX_PROGRAM_ARB:
 743       if (mode == PROG_PRINT_ARB)
 744          _mesa_printf("!!ARBvp1.0\n");
 745       else if (mode == PROG_PRINT_NV)
 746          _mesa_printf("!!VP1.0\n");
 747       else
 748          _mesa_printf("# Vertex Program/Shader\n");
 749       break;
 750    case GL_FRAGMENT_PROGRAM_ARB:
 751    case GL_FRAGMENT_PROGRAM_NV:
 752       if (mode == PROG_PRINT_ARB)
 753          _mesa_printf("!!ARBfp1.0\n");
 754       else if (mode == PROG_PRINT_NV)
 755          _mesa_printf("!!FP1.0\n");
 756       else
 757          _mesa_printf("# Fragment Program/Shader\n");
 758       break;
 759    }
 760
 761    for (i = 0; i < prog->NumInstructions; i++) {
 762       if (lineNumbers)
 763          _mesa_printf("%3d: ", i);
 764       indent = _mesa_print_instruction_opt(prog->Instructions + i,
 765                                            indent, mode, prog);
 766    }
 767 }
 768
 769
 770 /**
 771  * Print all of a program's parameters.
 772  */
 773 void
 774 _mesa_print_program_parameters(GLcontext *ctx, const struct gl_program *prog)
 775 {
 776    GLuint i;
 777
 778    _mesa_printf("InputsRead: 0x%x\n", prog->InputsRead);
 779    _mesa_printf("OutputsWritten: 0x%x\n", prog->OutputsWritten);
 780    _mesa_printf("NumInstructions=%d\n", prog->NumInstructions);
 781    _mesa_printf("NumTemporaries=%d\n", prog->NumTemporaries);
 782    _mesa_printf("NumParameters=%d\n", prog->NumParameters);
 783    _mesa_printf("NumAttributes=%d\n", prog->NumAttributes);
 784    _mesa_printf("NumAddressRegs=%d\n", prog->NumAddressRegs);
 785    _mesa_printf("Samplers=[ ");
 786    for (i = 0; i < MAX_SAMPLERS; i++) {
 787       _mesa_printf("%d ", prog->SamplerUnits[i]);
 788    }
 789    _mesa_printf("]\n");
 790
 791    _mesa_load_state_parameters(ctx, prog->Parameters);
 792
 793 #if 0
 794    _mesa_printf("Local Params:\n");
 795    for (i = 0; i < MAX_PROGRAM_LOCAL_PARAMS; i++){
 796       const GLfloat *p = prog->LocalParams[i];
 797       _mesa_printf("%2d: %f, %f, %f, %f\n", i, p[0], p[1], p[2], p[3]);
 798    }
 799 #endif
 800    _mesa_print_parameter_list(prog->Parameters);
 801 }
 802
 803
 804 void
 805 _mesa_print_parameter_list(const struct gl_program_parameter_list *list)
 806 {
 807    const gl_prog_print_mode mode = PROG_PRINT_DEBUG;
 808    GLuint i;
 809
 810    if (!list)
 811       return;
 812
 813    _mesa_printf("param list %p\n", (void *) list);
 814    for (i = 0; i < list->NumParameters; i++){
 815       struct gl_program_parameter *param = list->Parameters + i;
 816       const GLfloat *v = list->ParameterValues[i];
 817       _mesa_printf("param[%d] sz=%d %s %s = {%.3g, %.3g, %.3g, %.3g};\n",
 818                    i, param->Size,
 819                    file_string(list->Parameters[i].Type, mode),
 820                    param->Name, v[0], v[1], v[2], v[3]);
 821    }
 822 }