dlls/d3dx9_36/asmshader.l

   1 /*
   2  * Direct3D shader assembler
   3  *
   4  * Copyright 2008 Stefan Dösinger
   5  * Copyright 2009 Matteo Bruni
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 %{
  23 #include "config.h"
  24 #include "wine/port.h"
  25 #include "wine/debug.h"
  26
  27 #include "d3dx9_36_private.h"
  28 #include "asmshader.tab.h"
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(asmshader);
  31 %}
  32
  33 %option noyywrap
  34 %option prefix="asmshader_"
  35 %option noinput nounput
  36
  37 /* Swizzles and writemasks consist of a dot and up to 4 x, y, z or w characters,
  38  * or up to 4 a, r, g, b characters. There are different rules for swizzles and
  39  * writemasks wrt repetition, those are handled in the grammar.
  40  */
  41 DOT                     \.
  42 COMPONENT               [xyzw]|[rgba]
  43
  44 /* Registers */
  45 REG_TEMP                r[0-9]+
  46 /* for relative addressing in the form o[x], v[x] and c[x] */
  47 REG_OUTPUT              o[0-9]*
  48 REG_INPUT               v[0-9]*
  49 REG_CONSTFLOAT          c[0-9]*
  50 REG_CONSTINT            i[0-9]+
  51 REG_CONSTBOOL           b[0-9]+
  52 REG_TEXTURE             t[0-9]+
  53 REG_TEXCRDOUT           oT[0-9]+
  54 REG_SAMPLER             s[0-9]+
  55 REG_OPOS                oPos
  56 REG_OFOG                oFog
  57 REG_OPTS                oPts
  58 REG_VERTEXCOLOR         oD[01]
  59 REG_FRAGCOLOR           oC[0-9]+
  60 REG_FRAGDEPTH           oDepth
  61 REG_VPOS                vPos
  62 REG_VFACE               vFace
  63 REG_ADDRESS             a0
  64 REG_LOOP                aL
  65 REG_PREDICATE           p0
  66 /* Not really a register, but it is considered as such */
  67 REG_LABEL               l[0-9]+
  68
  69 DCL_POSITION            _position[0-9]*
  70 DCL_BLENDWEIGHT         _blendweight[0-9]*
  71 DCL_BLENDINDICES        _blendindices[0-9]*
  72 DCL_NORMAL              _normal[0-9]*
  73 DCL_PSIZE               _psize[0-9]*
  74 DCL_TEXCOORD            _texcoord[0-9]*
  75 DCL_TANGENT             _tangent[0-9]*
  76 DCL_BINORMAL            _binormal[0-9]*
  77 DCL_TESSFACTOR          _tessfactor[0-9]*
  78 DCL_POSITIONT           _positiont[0-9]*
  79 DCL_COLOR               _color[0-9]*
  80 DCL_FOG                 _fog[0-9]*
  81 DCL_DEPTH               _depth[0-9]*
  82 DCL_SAMPLE              _sample[0-9]*
  83
  84 DCL_SAMPLER1D           _1d
  85 DCL_SAMPLER2D           _2d
  86 DCL_SAMPLERCUBE         _cube
  87 DCL_SAMPLERVOLUME       _volume
  88
  89 PREPROCESSORDIRECTIVE   #[^\n]*\n
  90
  91 /* Comments */
  92 DOUBLESLASHCOMMENT      "//"[^\n]*
  93 SEMICOLONCOMMENT        ";"[^\n]*
  94
  95 /* Whitespaces are spaces, tabs and newlines */
  96 WHITESPACE              [ \t]+
  97 NEWLINE                 (\n)|(\r\n)
  98
  99 COMMA                   ","
 100
 101 IMMVAL                  \-?(([0-9]+)|([0-9]*\.[0-9]+))(f)?
 102
 103 ANY                     (.)
 104
 105 %%
 106
 107     /* Common instructions(vertex and pixel shaders) */
 108 add                     {return INSTR_ADD;          }
 109 nop                     {return INSTR_NOP;          }
 110 mov                     {return INSTR_MOV;          }
 111 sub                     {return INSTR_SUB;          }
 112 mad                     {return INSTR_MAD;          }
 113 mul                     {return INSTR_MUL;          }
 114 rcp                     {return INSTR_RCP;          }
 115 rsq                     {return INSTR_RSQ;          }
 116 dp3                     {return INSTR_DP3;          }
 117 dp4                     {return INSTR_DP4;          }
 118 min                     {return INSTR_MIN;          }
 119 max                     {return INSTR_MAX;          }
 120 slt                     {return INSTR_SLT;          }
 121 sge                     {return INSTR_SGE;          }
 122 abs                     {return INSTR_ABS;          }
 123 exp                     {return INSTR_EXP;          }
 124 log                     {return INSTR_LOG;          }
 125 expp                    {return INSTR_EXPP;         }
 126 logp                    {return INSTR_LOGP;         }
 127 dst                     {return INSTR_DST;          }
 128 lrp                     {return INSTR_LRP;          }
 129 frc                     {return INSTR_FRC;          }
 130 pow                     {return INSTR_POW;          }
 131 crs                     {return INSTR_CRS;          }
 132 sgn                     {return INSTR_SGN;          }
 133 nrm                     {return INSTR_NRM;          }
 134 sincos                  {return INSTR_SINCOS;       }
 135 m4x4                    {return INSTR_M4x4;         }
 136 m4x3                    {return INSTR_M4x3;         }
 137 m3x4                    {return INSTR_M3x4;         }
 138 m3x3                    {return INSTR_M3x3;         }
 139 m3x2                    {return INSTR_M3x2;         }
 140 dcl                     {return INSTR_DCL;          }
 141 def                     {return INSTR_DEF;          }
 142 defb                    {return INSTR_DEFB;         }
 143 defi                    {return INSTR_DEFI;         }
 144 rep                     {return INSTR_REP;          }
 145 endrep                  {return INSTR_ENDREP;       }
 146 if                      {return INSTR_IF;           }
 147 else                    {return INSTR_ELSE;         }
 148 endif                   {return INSTR_ENDIF;        }
 149 break                   {return INSTR_BREAK;        }
 150 breakp                  {return INSTR_BREAKP;       }
 151 call                    {return INSTR_CALL;         }
 152 callnz                  {return INSTR_CALLNZ;       }
 153 loop                    {return INSTR_LOOP;         }
 154 ret                     {return INSTR_RET;          }
 155 endloop                 {return INSTR_ENDLOOP;      }
 156 label                   {return INSTR_LABEL;        }
 157 setp                    {return INSTR_SETP;         }
 158 texldl                  {return INSTR_TEXLDL;       }
 159
 160     /* Vertex shader only instructions  */
 161 lit                     {return INSTR_LIT;          }
 162 mova                    {return INSTR_MOVA;         }
 163
 164     /* Pixel shader only instructions   */
 165 cnd                     {return INSTR_CND;          }
 166 cmp                     {return INSTR_CMP;          }
 167 dp2add                  {return INSTR_DP2ADD;       }
 168 texcrd                  {return INSTR_TEXCRD;       }
 169 texkill                 {return INSTR_TEXKILL;      }
 170 texld                   {return INSTR_TEXLD;        }
 171 texdepth                {return INSTR_TEXDEPTH;     }
 172 bem                     {return INSTR_BEM;          }
 173 dsx                     {return INSTR_DSX;          }
 174 dsy                     {return INSTR_DSY;          }
 175 texldp                  {return INSTR_TEXLDP;       }
 176 texldb                  {return INSTR_TEXLDB;       }
 177 texldd                  {return INSTR_TEXLDD;       }
 178 phase                   {return INSTR_PHASE;        }
 179
 180 {REG_TEMP}              {
 181                             asmshader_lval.regnum = atoi(yytext + 1);
 182                             return REG_TEMP;
 183                         }
 184 {REG_OUTPUT}            {
 185                             asmshader_lval.regnum = atoi(yytext + 1);
 186                             return REG_OUTPUT;
 187                         }
 188 {REG_INPUT}             {
 189                             asmshader_lval.regnum = atoi(yytext + 1);
 190                             return REG_INPUT;
 191                         }
 192 {REG_CONSTFLOAT}        {
 193                             asmshader_lval.regnum = atoi(yytext + 1);
 194                             return REG_CONSTFLOAT;
 195                         }
 196 {REG_CONSTINT}          {
 197                             asmshader_lval.regnum = atoi(yytext + 1);
 198                             return REG_CONSTINT;
 199                         }
 200 {REG_CONSTBOOL}         {
 201                             asmshader_lval.regnum = atoi(yytext + 1);
 202                             return REG_CONSTBOOL;
 203                         }
 204 {REG_TEXTURE}           {
 205                             asmshader_lval.regnum = atoi(yytext + 1);
 206                             return REG_TEXTURE;
 207                         }
 208 {REG_TEXCRDOUT}         {
 209                             asmshader_lval.regnum = atoi(yytext + 2);
 210                             return REG_TEXCRDOUT;
 211                         }
 212 {REG_SAMPLER}           {
 213                             asmshader_lval.regnum = atoi(yytext + 1);
 214                             return REG_SAMPLER;
 215                         }
 216 {REG_OPOS}              {return REG_OPOS;           }
 217 {REG_OFOG}              {return REG_OFOG;           }
 218 {REG_OPTS}              {return REG_OPTS;           }
 219 {REG_VERTEXCOLOR}       {
 220                             asmshader_lval.regnum = atoi(yytext + 2);
 221                             return REG_VERTEXCOLOR;
 222                         }
 223 {REG_FRAGCOLOR}         {
 224                             asmshader_lval.regnum = atoi(yytext + 2);
 225                             return REG_FRAGCOLOR;
 226                         }
 227 {REG_FRAGDEPTH}         {return REG_FRAGDEPTH;      }
 228 {REG_VPOS}              {return REG_VPOS;           }
 229 {REG_VFACE}             {return REG_VFACE;          }
 230 {REG_ADDRESS}           {return REG_ADDRESS;        }
 231 {REG_LOOP}              {return REG_LOOP;           }
 232 {REG_PREDICATE}         {return REG_PREDICATE;      }
 233
 234 {REG_LABEL}             {
 235                             asmshader_lval.regnum = atoi(yytext + 1);
 236                             return REG_LABEL;
 237                         }
 238
 239     /* Shader versions. These are important to select the correct
 240      * parser profile.
 241      */
 242 vs\.1\.0|vs_1_0         {return VER_VS10;       }
 243 vs\.1\.1|vs_1_1         {return VER_VS11;       }
 244
 245 vs_2_0                  {return VER_VS20;       }
 246 vs_2_x                  {return VER_VS2X;       }
 247 vs_3_0                  {return VER_VS30;       }
 248
 249 ps\.1\.0|ps_1_0         {return VER_PS10;       }
 250 ps\.1\.1|ps_1_1         {return VER_PS11;       }
 251 ps\.1\.2|ps_1_2         {return VER_PS12;       }
 252 ps\.1\.3|ps_1_3         {return VER_PS13;       }
 253 ps\.1\.4|ps_1_4         {return VER_PS14;       }
 254
 255 ps_2_0                  {return VER_PS20;       }
 256 ps_2_x                  {return VER_PS2X;       }
 257 ps_3_0                  {return VER_PS30;       }
 258
 259 {DOT}                   {return yytext[0];      }
 260 {COMPONENT}             {
 261                             switch(yytext[0]) {
 262                                 case 'x':
 263                                 case 'r':
 264                                     asmshader_lval.component = 0;
 265                                     break;
 266                                 case 'y':
 267                                 case 'g':
 268                                     asmshader_lval.component = 1;
 269                                     break;
 270                                 case 'z':
 271                                 case 'b':
 272                                     asmshader_lval.component = 2;
 273                                     break;
 274                                 case 'w':
 275                                 case 'a':
 276                                     asmshader_lval.component = 3;
 277                                     break;
 278                             }
 279                             return COMPONENT;
 280                         }
 281
 282     /* Output modifiers */
 283 \_x2                    {return SHIFT_X2;           }
 284 \_x4                    {return SHIFT_X4;           }
 285 \_x8                    {return SHIFT_X8;           }
 286 \_d2                    {return SHIFT_D2;           }
 287 \_d4                    {return SHIFT_D4;           }
 288 \_d8                    {return SHIFT_D8;           }
 289 \_sat                   {return MOD_SAT;            }
 290 \_pp                    {return MOD_PP;             }
 291 \_centroid              {return MOD_CENTROID;       }
 292
 293     /* compare params */
 294 \_gt                    {return COMP_GT;            }
 295 \_lt                    {return COMP_LT;            }
 296 \_ge                    {return COMP_GE;            }
 297 \_le                    {return COMP_LE;            }
 298 \_eq                    {return COMP_EQ;            }
 299 \_ne                    {return COMP_NE;            }
 300
 301 {IMMVAL}                {
 302                             asmshader_lval.immval.val = atof(yytext);
 303                             asmshader_lval.immval.integer = ((strstr(yytext, ".") == NULL) && (strstr(yytext, "f") == NULL));
 304                             return IMMVAL;
 305                         }
 306 true                    {
 307                             asmshader_lval.immbool = TRUE;
 308                             return IMMBOOL;
 309                         }
 310 false                   {
 311                             asmshader_lval.immbool = FALSE;
 312                             return IMMBOOL;
 313                         }
 314
 315 {COMMA}                 {return yytext[0];          }
 316 -                       {return yytext[0];          }
 317 \(                      {return yytext[0];          }
 318 \)                      {return yytext[0];          }
 319
 320     /* for relative addressing */
 321 \[|\]|\+                {return yytext[0];          }
 322
 323 \_bias                  {return SMOD_BIAS;          }
 324     /* No _x2 here; it is identical to MOD_X2 */
 325 \_bx2                   {return SMOD_SCALEBIAS;     }
 326 \_dz                    {return SMOD_DZ;            }
 327 \_dw                    {return SMOD_DW;            }
 328 \_abs                   {return SMOD_ABS;           }
 329
 330 !                       {return SMOD_NOT;           }
 331
 332 {DCL_POSITION}          {
 333                             if(yytext[strlen("_position")] == '\0') {
 334                                 asmshader_lval.regnum = 0;
 335                             } else {
 336                                 asmshader_lval.regnum = atoi(yytext + strlen("_position"));
 337                             }
 338                             return USAGE_POSITION;
 339                         }
 340 {DCL_BLENDWEIGHT}       {
 341                             if(yytext[strlen("_blendweight")] == '\0') {
 342                                 asmshader_lval.regnum = 0;
 343                             } else {
 344                                 asmshader_lval.regnum = atoi(yytext + strlen("_blendweight"));
 345                             }
 346                             return USAGE_BLENDWEIGHT;
 347                         }
 348 {DCL_BLENDINDICES}      {
 349                             if(yytext[strlen("_blendindices")] == '\0') {
 350                                 asmshader_lval.regnum = 0;
 351                             } else {
 352                                 asmshader_lval.regnum = atoi(yytext + strlen("_blendindices"));
 353                             }
 354                             return USAGE_BLENDINDICES;
 355                         }
 356 {DCL_NORMAL}            {
 357                             if(yytext[strlen("_normal")] == '\0') {
 358                                 asmshader_lval.regnum = 0;
 359                             } else {
 360                                 asmshader_lval.regnum = atoi(yytext + strlen("_normal"));
 361                             }
 362                             return USAGE_NORMAL;
 363                         }
 364 {DCL_PSIZE}             {
 365                             if(yytext[strlen("_psize")] == '\0') {
 366                                 asmshader_lval.regnum = 0;
 367                             } else {
 368                                 asmshader_lval.regnum = atoi(yytext + strlen("_psize"));
 369                             }
 370                             return USAGE_PSIZE;
 371                         }
 372 {DCL_TEXCOORD}          {
 373                             if(yytext[strlen("_texcoord")] == '\0') {
 374                                 asmshader_lval.regnum = 0;
 375                             } else {
 376                                 asmshader_lval.regnum = atoi(yytext + strlen("_texcoord"));
 377                             }
 378                             return USAGE_TEXCOORD;
 379                         }
 380 {DCL_TANGENT}           {
 381                             if(yytext[strlen("_tangent")] == '\0') {
 382                                 asmshader_lval.regnum = 0;
 383                             } else {
 384                                 asmshader_lval.regnum = atoi(yytext + strlen("_tangent"));
 385                             }
 386                             return USAGE_TANGENT;
 387                         }
 388 {DCL_BINORMAL}          {
 389                             if(yytext[strlen("_binormal")] == '\0') {
 390                                 asmshader_lval.regnum = 0;
 391                             } else {
 392                                 asmshader_lval.regnum = atoi(yytext + strlen("_binormal"));
 393                             }
 394                             return USAGE_BINORMAL;
 395                         }
 396 {DCL_TESSFACTOR}        {
 397                             if(yytext[strlen("_tessfactor")] == '\0') {
 398                                 asmshader_lval.regnum = 0;
 399                             } else {
 400                                 asmshader_lval.regnum = atoi(yytext + strlen("_tessfactor"));
 401                             }
 402                             return USAGE_TESSFACTOR;
 403                         }
 404 {DCL_POSITIONT}         {
 405                             if(yytext[strlen("_positiont")] == '\0') {
 406                                 asmshader_lval.regnum = 0;
 407                             } else {
 408                                 asmshader_lval.regnum = atoi(yytext + strlen("_positiont"));
 409                             }
 410                             return USAGE_POSITIONT;
 411                         }
 412 {DCL_COLOR}             {
 413                             if(yytext[strlen("_color")] == '\0') {
 414                                 asmshader_lval.regnum = 0;
 415                             } else {
 416                                 asmshader_lval.regnum = atoi(yytext + strlen("_color"));
 417                             }
 418                             return USAGE_COLOR;
 419                         }
 420 {DCL_FOG}               {
 421                             if(yytext[strlen("_fog")] == '\0') {
 422                                 asmshader_lval.regnum = 0;
 423                             } else {
 424                                 asmshader_lval.regnum = atoi(yytext + strlen("_fog"));
 425                             }
 426                             return USAGE_FOG;
 427                         }
 428 {DCL_DEPTH}             {
 429                             if(yytext[strlen("_depth")] == '\0') {
 430                                 asmshader_lval.regnum = 0;
 431                             } else {
 432                                 asmshader_lval.regnum = atoi(yytext + strlen("_depth"));
 433                             }
 434                             return USAGE_DEPTH;
 435                         }
 436 {DCL_SAMPLE}            {
 437                             if(yytext[strlen("_sample")] == '\0') {
 438                                 asmshader_lval.regnum = 0;
 439                             } else {
 440                                 asmshader_lval.regnum = atoi(yytext + strlen("_sample"));
 441                             }
 442                             return USAGE_SAMPLE;
 443                         }
 444
 445 {DCL_SAMPLER1D}         { return SAMPTYPE_1D;       }
 446 {DCL_SAMPLER2D}         { return SAMPTYPE_2D;       }
 447 {DCL_SAMPLERCUBE}       { return SAMPTYPE_CUBE;     }
 448 {DCL_SAMPLERVOLUME}     { return SAMPTYPE_VOLUME;   }
 449
 450 {PREPROCESSORDIRECTIVE} {
 451                             /* TODO: update current line information */
 452                             TRACE("line info update: %s", yytext);
 453                         }
 454
 455     /* Skip comments */
 456 {DOUBLESLASHCOMMENT}    {                           }
 457 {SEMICOLONCOMMENT}      {                           }
 458
 459 {WHITESPACE}            { /* Do nothing */          }
 460 {NEWLINE}               {
 461                             asm_ctx.line_no++;
 462                         }
 463
 464 {ANY}                   {
 465                             asmparser_message(&asm_ctx, "Line %u: Unexpected input %s\n", asm_ctx.line_no, yytext);
 466                             set_parse_status(&asm_ctx, PARSE_ERR);
 467                         }
 468
 469 %%
 470
 471 struct bwriter_shader *SlAssembleShader(const char *text, char **messages) {
 472     struct bwriter_shader *ret = NULL;
 473     YY_BUFFER_STATE buffer;
 474     TRACE("%p, %p\n", text, messages);
 475
 476     buffer = asmshader__scan_string(text);
 477     asmshader__switch_to_buffer(buffer);
 478
 479     ret = parse_asm_shader(messages);
 480
 481     asmshader__delete_buffer(buffer);
 482
 483     return ret;
 484 }