src/mesa/shader/prog_print.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.3
   4  *
   5  * Copyright (C) 1999-2008  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+%d]", file_string(f, mode), 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 const char *
 360 _mesa_writemask_string(GLuint writeMask)
 361 {
 362    static char s[10];
 363    GLuint i = 0;
 364
 365    if (writeMask == WRITEMASK_XYZW)
 366       return "";
 367
 368    s[i++] = '.';
 369    if (writeMask & WRITEMASK_X)
 370       s[i++] = 'x';
 371    if (writeMask & WRITEMASK_Y)
 372       s[i++] = 'y';
 373    if (writeMask & WRITEMASK_Z)
 374       s[i++] = 'z';
 375    if (writeMask & WRITEMASK_W)
 376       s[i++] = 'w';
 377
 378    s[i] = 0;
 379    return s;
 380 }
 381
 382
 383 const char *
 384 _mesa_condcode_string(GLuint condcode)
 385 {
 386    switch (condcode) {
 387    case COND_GT:  return "GT";
 388    case COND_EQ:  return "EQ";
 389    case COND_LT:  return "LT";
 390    case COND_UN:  return "UN";
 391    case COND_GE:  return "GE";
 392    case COND_LE:  return "LE";
 393    case COND_NE:  return "NE";
 394    case COND_TR:  return "TR";
 395    case COND_FL:  return "FL";
 396    default: return "cond???";
 397    }
 398 }
 399
 400
 401 static void
 402 print_dst_reg(const struct prog_dst_register *dstReg, gl_prog_print_mode mode,
 403               const struct gl_program *prog)
 404 {
 405    _mesa_printf("%s%s",
 406                 reg_string((enum register_file) dstReg->File,
 407                            dstReg->Index, mode, dstReg->RelAddr, prog),
 408                 _mesa_writemask_string(dstReg->WriteMask));
 409
 410    if (dstReg->CondMask != COND_TR) {
 411       _mesa_printf(" (%s.%s)",
 412                    _mesa_condcode_string(dstReg->CondMask),
 413                    _mesa_swizzle_string(dstReg->CondSwizzle, GL_FALSE, GL_FALSE));
 414    }
 415
 416 #if 0
 417    _mesa_printf("%s[%d]%s",
 418                 file_string((enum register_file) dstReg->File, mode),
 419                 dstReg->Index,
 420                 _mesa_writemask_string(dstReg->WriteMask));
 421 #endif
 422 }
 423
 424 static void
 425 print_src_reg(const struct prog_src_register *srcReg, gl_prog_print_mode mode,
 426               const struct gl_program *prog)
 427 {
 428    _mesa_printf("%s%s",
 429                 reg_string((enum register_file) srcReg->File,
 430                            srcReg->Index, mode, srcReg->RelAddr, prog),
 431                 _mesa_swizzle_string(srcReg->Swizzle,
 432                                      srcReg->NegateBase, GL_FALSE));
 433 #if 0
 434    _mesa_printf("%s[%d]%s",
 435                 file_string((enum register_file) srcReg->File, mode),
 436                 srcReg->Index,
 437                 _mesa_swizzle_string(srcReg->Swizzle,
 438                                srcReg->NegateBase, GL_FALSE));
 439 #endif
 440 }
 441
 442 static void
 443 print_comment(const struct prog_instruction *inst)
 444 {
 445    if (inst->Comment)
 446       _mesa_printf(";  # %s\n", inst->Comment);
 447    else
 448       _mesa_printf(";\n");
 449 }
 450
 451
 452 static void
 453 print_alu_instruction(const struct prog_instruction *inst,
 454                       const char *opcode_string, GLuint numRegs,
 455                       gl_prog_print_mode mode,
 456                       const struct gl_program *prog)
 457 {
 458    GLuint j;
 459
 460    _mesa_printf("%s", opcode_string);
 461    if (inst->CondUpdate)
 462       _mesa_printf(".C");
 463
 464    /* frag prog only */
 465    if (inst->SaturateMode == SATURATE_ZERO_ONE)
 466       _mesa_printf("_SAT");
 467
 468    _mesa_printf(" ");
 469    if (inst->DstReg.File != PROGRAM_UNDEFINED) {
 470       print_dst_reg(&inst->DstReg, mode, prog);
 471    }
 472    else {
 473       _mesa_printf(" ???");
 474    }
 475
 476    if (numRegs > 0)
 477       _mesa_printf(", ");
 478
 479    for (j = 0; j < numRegs; j++) {
 480       print_src_reg(inst->SrcReg + j, mode, prog);
 481       if (j + 1 < numRegs)
 482          _mesa_printf(", ");
 483    }
 484
 485    print_comment(inst);
 486 }
 487
 488
 489 void
 490 _mesa_print_alu_instruction(const struct prog_instruction *inst,
 491                             const char *opcode_string, GLuint numRegs)
 492 {
 493    print_alu_instruction(inst, opcode_string, numRegs, PROG_PRINT_DEBUG, NULL);
 494 }
 495
 496
 497 void
 498 _mesa_print_instruction(const struct prog_instruction *inst)
 499 {
 500    /* note: 4th param should be ignored for PROG_PRINT_DEBUG */
 501    _mesa_print_instruction_opt(inst, 0, PROG_PRINT_DEBUG, NULL);
 502 }
 503
 504
 505 /**
 506  * Print a single vertex/fragment program instruction.
 507  */
 508 GLint
 509 _mesa_print_instruction_opt(const struct prog_instruction *inst, GLint indent,
 510                             gl_prog_print_mode mode,
 511                             const struct gl_program *prog)
 512 {
 513    GLint i;
 514
 515    if (inst->Opcode == OPCODE_ELSE ||
 516        inst->Opcode == OPCODE_ENDIF ||
 517        inst->Opcode == OPCODE_ENDLOOP ||
 518        inst->Opcode == OPCODE_ENDSUB) {
 519       indent -= 3;
 520    }
 521    for (i = 0; i < indent; i++) {
 522       _mesa_printf(" ");
 523    }
 524
 525    switch (inst->Opcode) {
 526    case OPCODE_PRINT:
 527       _mesa_printf("PRINT '%s'", inst->Data);
 528       if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) {
 529          _mesa_printf(", ");
 530          _mesa_printf("%s[%d]%s",
 531                       file_string((enum register_file) inst->SrcReg[0].File,
 532                                   mode),
 533                       inst->SrcReg[0].Index,
 534                       _mesa_swizzle_string(inst->SrcReg[0].Swizzle,
 535                                            inst->SrcReg[0].NegateBase, GL_FALSE));
 536       }
 537       if (inst->Comment)
 538          _mesa_printf("  # %s", inst->Comment);
 539       print_comment(inst);
 540       break;
 541    case OPCODE_SWZ:
 542       _mesa_printf("SWZ");
 543       if (inst->SaturateMode == SATURATE_ZERO_ONE)
 544          _mesa_printf("_SAT");
 545       _mesa_printf(" ");
 546       print_dst_reg(&inst->DstReg, mode, prog);
 547       _mesa_printf(", %s[%d], %s",
 548                    file_string((enum register_file) inst->SrcReg[0].File,
 549                                mode),
 550                    inst->SrcReg[0].Index,
 551                    _mesa_swizzle_string(inst->SrcReg[0].Swizzle,
 552                                         inst->SrcReg[0].NegateBase, GL_TRUE));
 553       print_comment(inst);
 554       break;
 555    case OPCODE_TEX:
 556    case OPCODE_TXP:
 557    case OPCODE_TXL:
 558    case OPCODE_TXB:
 559       _mesa_printf("%s", _mesa_opcode_string(inst->Opcode));
 560       if (inst->SaturateMode == SATURATE_ZERO_ONE)
 561          _mesa_printf("_SAT");
 562       _mesa_printf(" ");
 563       print_dst_reg(&inst->DstReg, mode, prog);
 564       _mesa_printf(", ");
 565       print_src_reg(&inst->SrcReg[0], mode, prog);
 566       _mesa_printf(", texture[%d], ", inst->TexSrcUnit);
 567       switch (inst->TexSrcTarget) {
 568       case TEXTURE_1D_INDEX:   _mesa_printf("1D");    break;
 569       case TEXTURE_2D_INDEX:   _mesa_printf("2D");    break;
 570       case TEXTURE_3D_INDEX:   _mesa_printf("3D");    break;
 571       case TEXTURE_CUBE_INDEX: _mesa_printf("CUBE");  break;
 572       case TEXTURE_RECT_INDEX: _mesa_printf("RECT");  break;
 573       default:
 574          ;
 575       }
 576       print_comment(inst);
 577       break;
 578
 579    case OPCODE_KIL:
 580       _mesa_printf("%s", _mesa_opcode_string(inst->Opcode));
 581       _mesa_printf(" ");
 582       print_src_reg(&inst->SrcReg[0], mode, prog);
 583       print_comment(inst);
 584       break;
 585    case OPCODE_KIL_NV:
 586       _mesa_printf("%s", _mesa_opcode_string(inst->Opcode));
 587       _mesa_printf(" ");
 588       _mesa_printf("%s.%s",
 589                    _mesa_condcode_string(inst->DstReg.CondMask),
 590                    _mesa_swizzle_string(inst->DstReg.CondSwizzle,
 591                                         GL_FALSE, GL_FALSE));
 592       print_comment(inst);
 593       break;
 594
 595    case OPCODE_ARL:
 596       _mesa_printf("ARL ");
 597       print_dst_reg(&inst->DstReg, mode, prog);
 598       _mesa_printf(", ");
 599       print_src_reg(&inst->SrcReg[0], mode, prog);
 600       print_comment(inst);
 601       break;
 602    case OPCODE_BRA:
 603       _mesa_printf("BRA %d (%s%s)",
 604                    inst->BranchTarget,
 605                    _mesa_condcode_string(inst->DstReg.CondMask),
 606                    _mesa_swizzle_string(inst->DstReg.CondSwizzle, 0, GL_FALSE));
 607       print_comment(inst);
 608       break;
 609    case OPCODE_IF:
 610       if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) {
 611          /* Use ordinary register */
 612          _mesa_printf("IF ");
 613          print_src_reg(&inst->SrcReg[0], mode, prog);
 614          _mesa_printf("; ");
 615       }
 616       else {
 617          /* Use cond codes */
 618          _mesa_printf("IF (%s%s);",
 619                       _mesa_condcode_string(inst->DstReg.CondMask),
 620                       _mesa_swizzle_string(inst->DstReg.CondSwizzle,
 621                                            0, GL_FALSE));
 622       }
 623       _mesa_printf(" # (if false, goto %d)", inst->BranchTarget);
 624       print_comment(inst);
 625       return indent + 3;
 626    case OPCODE_ELSE:
 627       _mesa_printf("ELSE; # (goto %d)\n", inst->BranchTarget);
 628       return indent + 3;
 629    case OPCODE_ENDIF:
 630       _mesa_printf("ENDIF;\n");
 631       break;
 632    case OPCODE_BGNLOOP:
 633       _mesa_printf("BGNLOOP; # (end at %d)\n", inst->BranchTarget);
 634       return indent + 3;
 635    case OPCODE_ENDLOOP:
 636       _mesa_printf("ENDLOOP; # (goto %d)\n", inst->BranchTarget);
 637       break;
 638    case OPCODE_BRK:
 639    case OPCODE_CONT:
 640       _mesa_printf("%s (%s%s); # (goto %d)",
 641                    _mesa_opcode_string(inst->Opcode),
 642                    _mesa_condcode_string(inst->DstReg.CondMask),
 643                    _mesa_swizzle_string(inst->DstReg.CondSwizzle, 0, GL_FALSE),
 644                    inst->BranchTarget);
 645       print_comment(inst);
 646       break;
 647
 648    case OPCODE_BGNSUB:
 649       if (mode == PROG_PRINT_NV) {
 650          _mesa_printf("%s:\n", inst->Comment); /* comment is label */
 651          return indent;
 652       }
 653       else {
 654          _mesa_printf("BGNSUB");
 655          print_comment(inst);
 656          return indent + 3;
 657       }
 658    case OPCODE_ENDSUB:
 659       if (mode == PROG_PRINT_DEBUG) {
 660          _mesa_printf("ENDSUB");
 661          print_comment(inst);
 662       }
 663       break;
 664    case OPCODE_CAL:
 665       if (mode == PROG_PRINT_NV) {
 666          _mesa_printf("CAL %s;  # (goto %d)\n", inst->Comment, inst->BranchTarget);
 667       }
 668       else {
 669          _mesa_printf("CAL %u", inst->BranchTarget);
 670          print_comment(inst);
 671       }
 672       break;
 673    case OPCODE_RET:
 674       _mesa_printf("RET (%s%s)",
 675                    _mesa_condcode_string(inst->DstReg.CondMask),
 676                    _mesa_swizzle_string(inst->DstReg.CondSwizzle, 0, GL_FALSE));
 677       print_comment(inst);
 678       break;
 679
 680    case OPCODE_END:
 681       _mesa_printf("END\n");
 682       break;
 683    case OPCODE_NOP:
 684       if (mode == PROG_PRINT_DEBUG) {
 685          _mesa_printf("NOP");
 686          print_comment(inst);
 687       }
 688       else if (inst->Comment) {
 689          /* ARB/NV extensions don't have NOP instruction */
 690          _mesa_printf("# %s\n", inst->Comment);
 691       }
 692       break;
 693    /* XXX may need other special-case instructions */
 694    default:
 695       /* typical alu instruction */
 696       print_alu_instruction(inst,
 697                             _mesa_opcode_string(inst->Opcode),
 698                             _mesa_num_inst_src_regs(inst->Opcode),
 699                             mode, prog);
 700       break;
 701    }
 702    return indent;
 703 }
 704
 705
 706 /**
 707  * Print program to stdout, default options.
 708  */
 709 void
 710 _mesa_print_program(const struct gl_program *prog)
 711 {
 712    _mesa_print_program_opt(prog, PROG_PRINT_DEBUG, GL_TRUE);
 713 }
 714
 715
 716 /**
 717  * Print program, with options.
 718  */
 719 void
 720 _mesa_print_program_opt(const struct gl_program *prog,
 721                         gl_prog_print_mode mode,
 722                         GLboolean lineNumbers)
 723 {
 724    GLuint i, indent = 0;
 725
 726    switch (prog->Target) {
 727    case GL_VERTEX_PROGRAM_ARB:
 728       if (mode == PROG_PRINT_ARB)
 729          _mesa_printf("!!ARBvp1.0\n");
 730       else if (mode == PROG_PRINT_NV)
 731          _mesa_printf("!!VP1.0\n");
 732       else
 733          _mesa_printf("# Vertex Program/Shader\n");
 734       break;
 735    case GL_FRAGMENT_PROGRAM_ARB:
 736    case GL_FRAGMENT_PROGRAM_NV:
 737       if (mode == PROG_PRINT_ARB)
 738          _mesa_printf("!!ARBfp1.0\n");
 739       else if (mode == PROG_PRINT_NV)
 740          _mesa_printf("!!FP1.0\n");
 741       else
 742          _mesa_printf("# Fragment Program/Shader\n");
 743       break;
 744    }
 745
 746    for (i = 0; i < prog->NumInstructions; i++) {
 747       if (lineNumbers)
 748          _mesa_printf("%3d: ", i);
 749       indent = _mesa_print_instruction_opt(prog->Instructions + i,
 750                                            indent, mode, prog);
 751    }
 752 }
 753
 754
 755 /**
 756  * Print all of a program's parameters.
 757  */
 758 void
 759 _mesa_print_program_parameters(GLcontext *ctx, const struct gl_program *prog)
 760 {
 761    GLuint i;
 762
 763    _mesa_printf("InputsRead: 0x%x\n", prog->InputsRead);
 764    _mesa_printf("OutputsWritten: 0x%x\n", prog->OutputsWritten);
 765    _mesa_printf("NumInstructions=%d\n", prog->NumInstructions);
 766    _mesa_printf("NumTemporaries=%d\n", prog->NumTemporaries);
 767    _mesa_printf("NumParameters=%d\n", prog->NumParameters);
 768    _mesa_printf("NumAttributes=%d\n", prog->NumAttributes);
 769    _mesa_printf("NumAddressRegs=%d\n", prog->NumAddressRegs);
 770    _mesa_printf("Samplers=[ ");
 771    for (i = 0; i < MAX_SAMPLERS; i++) {
 772       _mesa_printf("%d ", prog->SamplerUnits[i]);
 773    }
 774    _mesa_printf("]\n");
 775
 776    _mesa_load_state_parameters(ctx, prog->Parameters);
 777
 778 #if 0
 779    _mesa_printf("Local Params:\n");
 780    for (i = 0; i < MAX_PROGRAM_LOCAL_PARAMS; i++){
 781       const GLfloat *p = prog->LocalParams[i];
 782       _mesa_printf("%2d: %f, %f, %f, %f\n", i, p[0], p[1], p[2], p[3]);
 783    }
 784 #endif
 785    _mesa_print_parameter_list(prog->Parameters);
 786 }
 787
 788
 789 void
 790 _mesa_print_parameter_list(const struct gl_program_parameter_list *list)
 791 {
 792    const gl_prog_print_mode mode = PROG_PRINT_DEBUG;
 793    GLuint i;
 794
 795    if (!list)
 796       return;
 797
 798    _mesa_printf("param list %p\n", (void *) list);
 799    for (i = 0; i < list->NumParameters; i++){
 800       struct gl_program_parameter *param = list->Parameters + i;
 801       const GLfloat *v = list->ParameterValues[i];
 802       _mesa_printf("param[%d] sz=%d %s %s = {%.3g, %.3g, %.3g, %.3g}",
 803                    i, param->Size,
 804                    file_string(list->Parameters[i].Type, mode),
 805                    param->Name, v[0], v[1], v[2], v[3]);
 806       if (param->Flags & PROG_PARAM_BIT_CENTROID)
 807          _mesa_printf(" Centroid");
 808       if (param->Flags & PROG_PARAM_BIT_INVARIANT)
 809          _mesa_printf(" Invariant");
 810       if (param->Flags & PROG_PARAM_BIT_FLAT)
 811          _mesa_printf(" Flat");
 812       if (param->Flags & PROG_PARAM_BIT_LINEAR)
 813          _mesa_printf(" Linear");
 814       _mesa_printf("\n");
 815    }
 816 }