git.oblomov.eu Git - wine/blob - dlls/wined3d/baseshader.c

   1 /*
   2  * shaders implementation
   3  *
   4  * Copyright 2002-2003 Jason Edmeades
   5  * Copyright 2002-2003 Raphael Junqueira
   6  * Copyright 2004 Christian Costa
   7  * Copyright 2005 Oliver Stieber
   8  * Copyright 2006 Ivan Gyurdiev
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  */
  24
  25 #include "config.h"
  26 #include <string.h>
  27 #include <stdio.h>
  28 #include "wined3d_private.h"
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(d3d_shader);
  31
  32 #define GLNAME_REQUIRE_GLSL  ((const char *)1)
  33
  34 static inline BOOL shader_is_version_token(DWORD token) {
  35     return shader_is_pshader_version(token) ||
  36            shader_is_vshader_version(token);
  37 }
  38
  39 int shader_addline(
  40     SHADER_BUFFER* buffer,
  41     const char *format, ...) {
  42
  43     char* base = buffer->buffer + buffer->bsize;
  44     int rc;
  45
  46     va_list args;
  47     va_start(args, format);
  48     rc = vsnprintf(base, SHADER_PGMSIZE - 1 - buffer->bsize, format, args);
  49     va_end(args);
  50
  51     if (rc < 0 ||                                   /* C89 */
  52         rc > SHADER_PGMSIZE - 1 - buffer->bsize) {  /* C99 */
  53
  54         ERR("The buffer allocated for the shader program string "
  55             "is too small at %d bytes.\n", SHADER_PGMSIZE);
  56         buffer->bsize = SHADER_PGMSIZE - 1;
  57         return -1;
  58     }
  59
  60     if (buffer->newline) {
  61         TRACE("GL HW (%u, %u) : %s", buffer->lineNo + 1, buffer->bsize, base);
  62         buffer->newline = FALSE;
  63     } else {
  64         TRACE("%s", base);
  65     }
  66
  67     buffer->bsize += rc;
  68     if (buffer->buffer[buffer->bsize-1] == '\n') {
  69         buffer->lineNo++;
  70         buffer->newline = TRUE;
  71     }
  72     return 0;
  73 }
  74
  75 const SHADER_OPCODE* shader_get_opcode(
  76     IWineD3DBaseShader *iface, const DWORD code) {
  77
  78     IWineD3DBaseShaderImpl *This = (IWineD3DBaseShaderImpl*) iface;
  79
  80     DWORD i = 0;
  81     DWORD hex_version = This->baseShader.hex_version;
  82     const SHADER_OPCODE *shader_ins = This->baseShader.shader_ins;
  83
  84     /** TODO: use dichotomic search */
  85     while (NULL != shader_ins[i].name) {
  86         if (((code & WINED3DSI_OPCODE_MASK) == shader_ins[i].opcode) &&
  87             (((hex_version >= shader_ins[i].min_version) && (hex_version <= shader_ins[i].max_version)) ||
  88             ((shader_ins[i].min_version == 0) && (shader_ins[i].max_version == 0)))) {
  89             return &shader_ins[i];
  90         }
  91         ++i;
  92     }
  93     FIXME("Unsupported opcode %#x(%d) masked %#x, shader version %#x\n",
  94        code, code, code & WINED3DSI_OPCODE_MASK, hex_version);
  95     return NULL;
  96 }
  97
  98 /* Read a parameter opcode from the input stream,
  99  * and possibly a relative addressing token.
 100  * Return the number of tokens read */
 101 int shader_get_param(
 102     IWineD3DBaseShader* iface,
 103     const DWORD* pToken,
 104     DWORD* param,
 105     DWORD* addr_token) {
 106
 107     /* PS >= 3.0 have relative addressing (with token)
 108      * VS >= 2.0 have relative addressing (with token)
 109      * VS >= 1.0 < 2.0 have relative addressing (without token)
 110      * The version check below should work in general */
 111
 112     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 113     char rel_token = WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) >= 2 &&
 114         ((*pToken & WINED3DSHADER_ADDRESSMODE_MASK) == WINED3DSHADER_ADDRMODE_RELATIVE);
 115
 116     *param = *pToken;
 117     *addr_token = rel_token? *(pToken + 1): 0;
 118     return rel_token? 2:1;
 119 }
 120
 121 /* Return the number of parameters to skip for an opcode */
 122 static inline int shader_skip_opcode(
 123     IWineD3DBaseShaderImpl* This,
 124     const SHADER_OPCODE* curOpcode,
 125     DWORD opcode_token) {
 126
 127    /* Shaders >= 2.0 may contain address tokens, but fortunately they
 128     * have a useful legnth mask - use it here. Shaders 1.0 contain no such tokens */
 129
 130     return (WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) >= 2)?
 131         ((opcode_token & WINED3DSI_INSTLENGTH_MASK) >> WINED3DSI_INSTLENGTH_SHIFT):
 132         curOpcode->num_params;
 133 }
 134
 135 /* Read the parameters of an unrecognized opcode from the input stream
 136  * Return the number of tokens read.
 137  *
 138  * Note: This function assumes source or destination token format.
 139  * It will not work with specially-formatted tokens like DEF or DCL,
 140  * but hopefully those would be recognized */
 141
 142 int shader_skip_unrecognized(
 143     IWineD3DBaseShader* iface,
 144     const DWORD* pToken) {
 145
 146     int tokens_read = 0;
 147     int i = 0;
 148
 149     /* TODO: Think of a good name for 0x80000000 and replace it with a constant */
 150     while (*pToken & 0x80000000) {
 151
 152         DWORD param, addr_token;
 153         tokens_read += shader_get_param(iface, pToken, &param, &addr_token);
 154         pToken += tokens_read;
 155
 156         FIXME("Unrecognized opcode param: token=%08x "
 157             "addr_token=%08x name=", param, addr_token);
 158         shader_dump_param(iface, param, addr_token, i);
 159         FIXME("\n");
 160         ++i;
 161     }
 162     return tokens_read;
 163 }
 164
 165 /* Convert floating point offset relative
 166  * to a register file to an absolute offset for float constants */
 167
 168 unsigned int shader_get_float_offset(const DWORD reg) {
 169
 170      unsigned int regnum = reg & WINED3DSP_REGNUM_MASK;
 171      int regtype = shader_get_regtype(reg);
 172
 173      switch (regtype) {
 174         case WINED3DSPR_CONST: return regnum;
 175         case WINED3DSPR_CONST2: return 2048 + regnum;
 176         case WINED3DSPR_CONST3: return 4096 + regnum;
 177         case WINED3DSPR_CONST4: return 6144 + regnum;
 178         default:
 179             FIXME("Unsupported register type: %d\n", regtype);
 180             return regnum;
 181      }
 182 }
 183
 184 /* Note that this does not count the loop register
 185  * as an address register. */
 186
 187 HRESULT shader_get_registers_used(
 188     IWineD3DBaseShader *iface,
 189     shader_reg_maps* reg_maps,
 190     semantic* semantics_in,
 191     semantic* semantics_out,
 192     CONST DWORD* pToken,
 193     IWineD3DStateBlockImpl *stateBlock) {
 194
 195     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 196     unsigned int cur_loop_depth = 0, max_loop_depth = 0;
 197
 198     /* There are some minor differences between pixel and vertex shaders */
 199     char pshader = shader_is_pshader_version(This->baseShader.hex_version);
 200
 201     reg_maps->bumpmat = -1;
 202     reg_maps->luminanceparams = -1;
 203
 204     if (pToken == NULL)
 205         return WINED3D_OK;
 206
 207     while (WINED3DVS_END() != *pToken) {
 208         CONST SHADER_OPCODE* curOpcode;
 209         DWORD opcode_token;
 210
 211         /* Skip version */
 212         if (shader_is_version_token(*pToken)) {
 213              ++pToken;
 214              continue;
 215
 216         /* Skip comments */
 217         } else if (shader_is_comment(*pToken)) {
 218              DWORD comment_len = (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 219              ++pToken;
 220              pToken += comment_len;
 221              continue;
 222         }
 223
 224         /* Fetch opcode */
 225         opcode_token = *pToken++;
 226         curOpcode = shader_get_opcode(iface, opcode_token);
 227
 228         /* Unhandled opcode, and its parameters */
 229         if (NULL == curOpcode) {
 230            while (*pToken & 0x80000000)
 231                ++pToken;
 232
 233         /* Handle declarations */
 234         } else if (WINED3DSIO_DCL == curOpcode->opcode) {
 235
 236             DWORD usage = *pToken++;
 237             DWORD param = *pToken++;
 238             DWORD regtype = shader_get_regtype(param);
 239             unsigned int regnum = param & WINED3DSP_REGNUM_MASK;
 240
 241             /* Vshader: mark attributes used
 242                Pshader: mark 3.0 input registers used, save token */
 243             if (WINED3DSPR_INPUT == regtype) {
 244
 245                 if (!pshader)
 246                     reg_maps->attributes[regnum] = 1;
 247                 else
 248                     reg_maps->packed_input[regnum] = 1;
 249
 250                 semantics_in[regnum].usage = usage;
 251                 semantics_in[regnum].reg = param;
 252
 253             /* Vshader: mark 3.0 output registers used, save token */
 254             } else if (WINED3DSPR_OUTPUT == regtype) {
 255                 reg_maps->packed_output[regnum] = 1;
 256                 semantics_out[regnum].usage = usage;
 257                 semantics_out[regnum].reg = param;
 258                 if (usage & (WINED3DDECLUSAGE_FOG << WINED3DSP_DCL_USAGE_SHIFT))
 259                     reg_maps->fog = 1;
 260
 261             /* Save sampler usage token */
 262             } else if (WINED3DSPR_SAMPLER == regtype)
 263                 reg_maps->samplers[regnum] = usage;
 264
 265         } else if (WINED3DSIO_DEF == curOpcode->opcode) {
 266
 267             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 268             if (!lconst) return E_OUTOFMEMORY;
 269             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 270             memcpy(&lconst->value, pToken + 1, 4 * sizeof(DWORD));
 271
 272             /* In pixel shader 1.X shaders, the constants are clamped between [-1;1] */
 273             if(WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) == 1 && pshader) {
 274                 float *value = (float *) lconst->value;
 275                 if(value[0] < -1.0) value[0] = -1.0;
 276                 else if(value[0] >  1.0) value[0] =  1.0;
 277                 if(value[1] < -1.0) value[1] = -1.0;
 278                 else if(value[1] >  1.0) value[1] =  1.0;
 279                 if(value[2] < -1.0) value[2] = -1.0;
 280                 else if(value[2] >  1.0) value[2] =  1.0;
 281                 if(value[3] < -1.0) value[3] = -1.0;
 282                 else if(value[3] >  1.0) value[3] =  1.0;
 283             }
 284
 285             list_add_head(&This->baseShader.constantsF, &lconst->entry);
 286             pToken += curOpcode->num_params;
 287
 288         } else if (WINED3DSIO_DEFI == curOpcode->opcode) {
 289
 290             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 291             if (!lconst) return E_OUTOFMEMORY;
 292             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 293             memcpy(&lconst->value, pToken + 1, 4 * sizeof(DWORD));
 294             list_add_head(&This->baseShader.constantsI, &lconst->entry);
 295             pToken += curOpcode->num_params;
 296
 297         } else if (WINED3DSIO_DEFB == curOpcode->opcode) {
 298
 299             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 300             if (!lconst) return E_OUTOFMEMORY;
 301             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 302             memcpy(&lconst->value, pToken + 1, 1 * sizeof(DWORD));
 303             list_add_head(&This->baseShader.constantsB, &lconst->entry);
 304             pToken += curOpcode->num_params;
 305
 306         /* If there's a loop in the shader */
 307         } else if (WINED3DSIO_LOOP == curOpcode->opcode ||
 308                    WINED3DSIO_REP == curOpcode->opcode) {
 309             cur_loop_depth++;
 310             if(cur_loop_depth > max_loop_depth)
 311                 max_loop_depth = cur_loop_depth;
 312             pToken += curOpcode->num_params;
 313
 314         } else if (WINED3DSIO_ENDLOOP == curOpcode->opcode ||
 315                    WINED3DSIO_ENDREP == curOpcode->opcode) {
 316             cur_loop_depth--;
 317
 318         /* For subroutine prototypes */
 319         } else if (WINED3DSIO_LABEL == curOpcode->opcode) {
 320
 321             DWORD snum = *pToken & WINED3DSP_REGNUM_MASK;
 322             reg_maps->labels[snum] = 1;
 323             pToken += curOpcode->num_params;
 324
 325         /* Set texture, address, temporary registers */
 326         } else {
 327             int i, limit;
 328
 329             /* Declare 1.X samplers implicitly, based on the destination reg. number */
 330             if (WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) == 1 &&
 331                 (WINED3DSIO_TEX == curOpcode->opcode ||
 332                  WINED3DSIO_TEXBEM == curOpcode->opcode ||
 333                  WINED3DSIO_TEXBEML == curOpcode->opcode ||
 334                  WINED3DSIO_TEXDP3TEX == curOpcode->opcode ||
 335                  WINED3DSIO_TEXM3x2TEX == curOpcode->opcode ||
 336                  WINED3DSIO_TEXM3x3SPEC == curOpcode->opcode ||
 337                  WINED3DSIO_TEXM3x3TEX == curOpcode->opcode ||
 338                  WINED3DSIO_TEXM3x3VSPEC == curOpcode->opcode ||
 339                  WINED3DSIO_TEXREG2AR == curOpcode->opcode ||
 340                  WINED3DSIO_TEXREG2GB == curOpcode->opcode ||
 341                  WINED3DSIO_TEXREG2RGB == curOpcode->opcode)) {
 342
 343                 /* Fake sampler usage, only set reserved bit and ttype */
 344                 DWORD sampler_code = *pToken & WINED3DSP_REGNUM_MASK;
 345
 346                 if(!stateBlock->textures[sampler_code]) {
 347                     ERR("No texture bound to sampler %d\n", sampler_code);
 348                     reg_maps->samplers[sampler_code] = (0x1 << 31) | WINED3DSTT_2D;
 349                 } else {
 350                     int texType = IWineD3DBaseTexture_GetTextureDimensions(stateBlock->textures[sampler_code]);
 351                     switch(texType) {
 352                         case GL_TEXTURE_2D:
 353                             reg_maps->samplers[sampler_code] = (0x1 << 31) | WINED3DSTT_2D;
 354                             break;
 355
 356                         case GL_TEXTURE_3D:
 357                             reg_maps->samplers[sampler_code] = (0x1 << 31) | WINED3DSTT_VOLUME;
 358                             break;
 359
 360                         case GL_TEXTURE_CUBE_MAP_ARB:
 361                             reg_maps->samplers[sampler_code] = (0x1 << 31) | WINED3DSTT_CUBE;
 362                             break;
 363
 364                         default:
 365                             ERR("Unexpected gl texture type found: %d\n", texType);
 366                             reg_maps->samplers[sampler_code] = (0x1 << 31) | WINED3DSTT_2D;
 367                     }
 368                 }
 369
 370                 /* texbem is only valid with < 1.4 pixel shaders */
 371                 if(WINED3DSIO_TEXBEM  == curOpcode->opcode ||
 372                     WINED3DSIO_TEXBEML == curOpcode->opcode) {
 373                     if(reg_maps->bumpmat != -1 && reg_maps->bumpmat != sampler_code) {
 374                         FIXME("Pixel shader uses texbem instruction on more than 1 sampler\n");
 375                     } else {
 376                         reg_maps->bumpmat = sampler_code;
 377                         if(WINED3DSIO_TEXBEML == curOpcode->opcode) {
 378                             reg_maps->luminanceparams = sampler_code;
 379                         }
 380                     }
 381                 }
 382             }
 383             if(WINED3DSIO_NRM  == curOpcode->opcode) {
 384                 reg_maps->usesnrm = 1;
 385             } else if(WINED3DSIO_BEM == curOpcode->opcode) {
 386                 DWORD regnum = *pToken & WINED3DSP_REGNUM_MASK;
 387                 if(reg_maps->bumpmat != -1 && reg_maps->bumpmat != regnum) {
 388                     FIXME("Pixel shader uses bem or texbem instruction on more than 1 sampler\n");
 389                 } else {
 390                     reg_maps->bumpmat = regnum;
 391                 }
 392             } else if(WINED3DSIO_DSY  == curOpcode->opcode) {
 393                 reg_maps->usesdsy = 1;
 394             }
 395
 396             /* This will loop over all the registers and try to
 397              * make a bitmask of the ones we're interested in.
 398              *
 399              * Relative addressing tokens are ignored, but that's
 400              * okay, since we'll catch any address registers when
 401              * they are initialized (required by spec) */
 402
 403             limit = (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED)?
 404                 curOpcode->num_params + 1: curOpcode->num_params;
 405
 406             for (i = 0; i < limit; ++i) {
 407
 408                 DWORD param, addr_token, reg, regtype;
 409                 pToken += shader_get_param(iface, pToken, &param, &addr_token);
 410
 411                 regtype = shader_get_regtype(param);
 412                 reg = param & WINED3DSP_REGNUM_MASK;
 413
 414                 if (WINED3DSPR_TEXTURE == regtype) { /* vs: WINED3DSPR_ADDR */
 415
 416                     if (pshader)
 417                         reg_maps->texcoord[reg] = 1;
 418                     else
 419                         reg_maps->address[reg] = 1;
 420                 }
 421
 422                 else if (WINED3DSPR_TEMP == regtype)
 423                     reg_maps->temporary[reg] = 1;
 424
 425                 else if (WINED3DSPR_INPUT == regtype && !pshader)
 426                     reg_maps->attributes[reg] = 1;
 427
 428                 else if (WINED3DSPR_RASTOUT == regtype && reg == 1)
 429                     reg_maps->fog = 1;
 430
 431                 else if (WINED3DSPR_MISCTYPE == regtype && reg == 0 && pshader)
 432                     reg_maps->vpos = 1;
 433             }
 434         }
 435     }
 436     reg_maps->loop_depth = max_loop_depth;
 437
 438     return WINED3D_OK;
 439 }
 440
 441 static void shader_dump_decl_usage(
 442     IWineD3DBaseShaderImpl* This,
 443     DWORD decl,
 444     DWORD param) {
 445
 446     DWORD regtype = shader_get_regtype(param);
 447
 448     TRACE("dcl");
 449
 450     if (regtype == WINED3DSPR_SAMPLER) {
 451         DWORD ttype = decl & WINED3DSP_TEXTURETYPE_MASK;
 452
 453         switch (ttype) {
 454             case WINED3DSTT_2D: TRACE("_2d"); break;
 455             case WINED3DSTT_CUBE: TRACE("_cube"); break;
 456             case WINED3DSTT_VOLUME: TRACE("_volume"); break;
 457             default: TRACE("_unknown_ttype(%08x)", ttype);
 458        }
 459
 460     } else {
 461
 462         DWORD usage = decl & WINED3DSP_DCL_USAGE_MASK;
 463         DWORD idx = (decl & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
 464
 465         /* Pixel shaders 3.0 don't have usage semantics */
 466         char pshader = shader_is_pshader_version(This->baseShader.hex_version);
 467         if (pshader && This->baseShader.hex_version < WINED3DPS_VERSION(3,0))
 468             return;
 469         else
 470             TRACE("_");
 471
 472         switch(usage) {
 473         case WINED3DDECLUSAGE_POSITION:
 474             TRACE("position%d", idx);
 475             break;
 476         case WINED3DDECLUSAGE_BLENDINDICES:
 477             TRACE("blend");
 478             break;
 479         case WINED3DDECLUSAGE_BLENDWEIGHT:
 480             TRACE("weight");
 481             break;
 482         case WINED3DDECLUSAGE_NORMAL:
 483             TRACE("normal%d", idx);
 484             break;
 485         case WINED3DDECLUSAGE_PSIZE:
 486             TRACE("psize");
 487             break;
 488         case WINED3DDECLUSAGE_COLOR:
 489             if(idx == 0)  {
 490                 TRACE("color");
 491             } else {
 492                 TRACE("specular%d", (idx - 1));
 493             }
 494             break;
 495         case WINED3DDECLUSAGE_TEXCOORD:
 496             TRACE("texture%d", idx);
 497             break;
 498         case WINED3DDECLUSAGE_TANGENT:
 499             TRACE("tangent");
 500             break;
 501         case WINED3DDECLUSAGE_BINORMAL:
 502             TRACE("binormal");
 503             break;
 504         case WINED3DDECLUSAGE_TESSFACTOR:
 505             TRACE("tessfactor");
 506             break;
 507         case WINED3DDECLUSAGE_POSITIONT:
 508             TRACE("positionT%d", idx);
 509             break;
 510         case WINED3DDECLUSAGE_FOG:
 511             TRACE("fog");
 512             break;
 513         case WINED3DDECLUSAGE_DEPTH:
 514             TRACE("depth");
 515             break;
 516         case WINED3DDECLUSAGE_SAMPLE:
 517             TRACE("sample");
 518             break;
 519         default:
 520             FIXME("unknown_semantics(%08x)", usage);
 521         }
 522     }
 523 }
 524
 525 static void shader_dump_arr_entry(
 526     IWineD3DBaseShader *iface,
 527     const DWORD param,
 528     const DWORD addr_token,
 529     unsigned int reg,
 530     int input) {
 531
 532     char relative =
 533         ((param & WINED3DSHADER_ADDRESSMODE_MASK) == WINED3DSHADER_ADDRMODE_RELATIVE);
 534
 535     if (relative) {
 536         TRACE("[");
 537         if (addr_token)
 538             shader_dump_param(iface, addr_token, 0, input);
 539         else
 540             TRACE("a0.x");
 541         TRACE(" + ");
 542      }
 543      TRACE("%u", reg);
 544      if (relative)
 545          TRACE("]");
 546 }
 547
 548 void shader_dump_param(
 549     IWineD3DBaseShader *iface,
 550     const DWORD param,
 551     const DWORD addr_token,
 552     int input) {
 553
 554     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 555     static const char * const rastout_reg_names[] = { "oPos", "oFog", "oPts" };
 556     static const char * const misctype_reg_names[] = { "vPos", "vFace"};
 557     char swizzle_reg_chars[4];
 558
 559     DWORD reg = param & WINED3DSP_REGNUM_MASK;
 560     DWORD regtype = shader_get_regtype(param);
 561     DWORD modifier = param & WINED3DSP_SRCMOD_MASK;
 562
 563     /* There are some minor differences between pixel and vertex shaders */
 564     char pshader = shader_is_pshader_version(This->baseShader.hex_version);
 565
 566     /* For one, we'd prefer color components to be shown for pshaders.
 567      * FIXME: use the swizzle function for this */
 568
 569     swizzle_reg_chars[0] = pshader? 'r': 'x';
 570     swizzle_reg_chars[1] = pshader? 'g': 'y';
 571     swizzle_reg_chars[2] = pshader? 'b': 'z';
 572     swizzle_reg_chars[3] = pshader? 'a': 'w';
 573
 574     if (input) {
 575         if ( (modifier == WINED3DSPSM_NEG) ||
 576              (modifier == WINED3DSPSM_BIASNEG) ||
 577              (modifier == WINED3DSPSM_SIGNNEG) ||
 578              (modifier == WINED3DSPSM_X2NEG) ||
 579              (modifier == WINED3DSPSM_ABSNEG) )
 580             TRACE("-");
 581         else if (modifier == WINED3DSPSM_COMP)
 582             TRACE("1-");
 583         else if (modifier == WINED3DSPSM_NOT)
 584             TRACE("!");
 585
 586         if (modifier == WINED3DSPSM_ABS || modifier == WINED3DSPSM_ABSNEG)
 587             TRACE("abs(");
 588     }
 589
 590     switch (regtype) {
 591         case WINED3DSPR_TEMP:
 592             TRACE("r%u", reg);
 593             break;
 594         case WINED3DSPR_INPUT:
 595             TRACE("v");
 596             shader_dump_arr_entry(iface, param, addr_token, reg, input);
 597             break;
 598         case WINED3DSPR_CONST:
 599         case WINED3DSPR_CONST2:
 600         case WINED3DSPR_CONST3:
 601         case WINED3DSPR_CONST4:
 602             TRACE("c");
 603             shader_dump_arr_entry(iface, param, addr_token, shader_get_float_offset(param), input);
 604             break;
 605         case WINED3DSPR_TEXTURE: /* vs: case D3DSPR_ADDR */
 606             TRACE("%c%u", (pshader? 't':'a'), reg);
 607             break;
 608         case WINED3DSPR_RASTOUT:
 609             TRACE("%s", rastout_reg_names[reg]);
 610             break;
 611         case WINED3DSPR_COLOROUT:
 612             TRACE("oC%u", reg);
 613             break;
 614         case WINED3DSPR_DEPTHOUT:
 615             TRACE("oDepth");
 616             break;
 617         case WINED3DSPR_ATTROUT:
 618             TRACE("oD%u", reg);
 619             break;
 620         case WINED3DSPR_TEXCRDOUT:
 621
 622             /* Vertex shaders >= 3.0 use general purpose output registers
 623              * (WINED3DSPR_OUTPUT), which can include an address token */
 624
 625             if (WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) >= 3) {
 626                 TRACE("o");
 627                 shader_dump_arr_entry(iface, param, addr_token, reg, input);
 628             }
 629             else
 630                TRACE("oT%u", reg);
 631             break;
 632         case WINED3DSPR_CONSTINT:
 633             TRACE("i");
 634             shader_dump_arr_entry(iface, param, addr_token, reg, input);
 635             break;
 636         case WINED3DSPR_CONSTBOOL:
 637             TRACE("b");
 638             shader_dump_arr_entry(iface, param, addr_token, reg, input);
 639             break;
 640         case WINED3DSPR_LABEL:
 641             TRACE("l%u", reg);
 642             break;
 643         case WINED3DSPR_LOOP:
 644             TRACE("aL");
 645             break;
 646         case WINED3DSPR_SAMPLER:
 647             TRACE("s%u", reg);
 648             break;
 649         case WINED3DSPR_MISCTYPE:
 650             if (reg > 1) {
 651                 FIXME("Unhandled misctype register %d\n", reg);
 652             } else {
 653                 TRACE("%s", misctype_reg_names[reg]);
 654             }
 655             break;
 656         case WINED3DSPR_PREDICATE:
 657             TRACE("p%u", reg);
 658             break;
 659         default:
 660             TRACE("unhandled_rtype(%#x)", regtype);
 661             break;
 662    }
 663
 664    if (!input) {
 665        /* operand output (for modifiers and shift, see dump_ins_modifiers) */
 666
 667        if ((param & WINED3DSP_WRITEMASK_ALL) != WINED3DSP_WRITEMASK_ALL) {
 668            TRACE(".");
 669            if (param & WINED3DSP_WRITEMASK_0) TRACE("%c", swizzle_reg_chars[0]);
 670            if (param & WINED3DSP_WRITEMASK_1) TRACE("%c", swizzle_reg_chars[1]);
 671            if (param & WINED3DSP_WRITEMASK_2) TRACE("%c", swizzle_reg_chars[2]);
 672            if (param & WINED3DSP_WRITEMASK_3) TRACE("%c", swizzle_reg_chars[3]);
 673        }
 674
 675    } else {
 676         /** operand input */
 677         DWORD swizzle = (param & WINED3DSP_SWIZZLE_MASK) >> WINED3DSP_SWIZZLE_SHIFT;
 678         DWORD swizzle_r = swizzle & 0x03;
 679         DWORD swizzle_g = (swizzle >> 2) & 0x03;
 680         DWORD swizzle_b = (swizzle >> 4) & 0x03;
 681         DWORD swizzle_a = (swizzle >> 6) & 0x03;
 682
 683         if (0 != modifier) {
 684             switch (modifier) {
 685                 case WINED3DSPSM_NONE:    break;
 686                 case WINED3DSPSM_NEG:     break;
 687                 case WINED3DSPSM_NOT:     break;
 688                 case WINED3DSPSM_BIAS:    TRACE("_bias"); break;
 689                 case WINED3DSPSM_BIASNEG: TRACE("_bias"); break;
 690                 case WINED3DSPSM_SIGN:    TRACE("_bx2"); break;
 691                 case WINED3DSPSM_SIGNNEG: TRACE("_bx2"); break;
 692                 case WINED3DSPSM_COMP:    break;
 693                 case WINED3DSPSM_X2:      TRACE("_x2"); break;
 694                 case WINED3DSPSM_X2NEG:   TRACE("_x2"); break;
 695                 case WINED3DSPSM_DZ:      TRACE("_dz"); break;
 696                 case WINED3DSPSM_DW:      TRACE("_dw"); break;
 697                 case WINED3DSPSM_ABSNEG:  TRACE(")"); break;
 698                 case WINED3DSPSM_ABS:     TRACE(")"); break;
 699                 default:
 700                     TRACE("_unknown_modifier(%#x)", modifier >> WINED3DSP_SRCMOD_SHIFT);
 701             }
 702         }
 703
 704         /**
 705         * swizzle bits fields:
 706         *  RRGGBBAA
 707         */
 708         if ((WINED3DVS_NOSWIZZLE >> WINED3DVS_SWIZZLE_SHIFT) != swizzle) {
 709             if (swizzle_r == swizzle_g &&
 710                 swizzle_r == swizzle_b &&
 711                 swizzle_r == swizzle_a) {
 712                     TRACE(".%c", swizzle_reg_chars[swizzle_r]);
 713             } else {
 714                 TRACE(".%c%c%c%c",
 715                 swizzle_reg_chars[swizzle_r],
 716                 swizzle_reg_chars[swizzle_g],
 717                 swizzle_reg_chars[swizzle_b],
 718                 swizzle_reg_chars[swizzle_a]);
 719             }
 720         }
 721     }
 722 }
 723
 724 /** Shared code in order to generate the bulk of the shader string.
 725     Use the shader_header_fct & shader_footer_fct to add strings
 726     that are specific to pixel or vertex functions
 727     NOTE: A description of how to parse tokens can be found at:
 728           http://msdn.microsoft.com/library/default.asp?url=/library/en-us/graphics/hh/graphics/usermodedisplaydriver_shader_cc8e4e05-f5c3-4ec0-8853-8ce07c1551b2.xml.asp */
 729 void shader_generate_main(
 730     IWineD3DBaseShader *iface,
 731     SHADER_BUFFER* buffer,
 732     shader_reg_maps* reg_maps,
 733     CONST DWORD* pFunction) {
 734
 735     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 736     IWineD3DDeviceImpl *device = (IWineD3DDeviceImpl *) This->baseShader.device; /* To access shader backend callbacks */
 737     const DWORD *pToken = pFunction;
 738     const SHADER_OPCODE *curOpcode = NULL;
 739     SHADER_HANDLER hw_fct = NULL;
 740     DWORD i;
 741     SHADER_OPCODE_ARG hw_arg;
 742
 743     /* Initialize current parsing state */
 744     hw_arg.shader = iface;
 745     hw_arg.buffer = buffer;
 746     hw_arg.reg_maps = reg_maps;
 747     This->baseShader.parse_state.current_row = 0;
 748
 749     /* Second pass, process opcodes */
 750     if (NULL != pToken) {
 751         while (WINED3DPS_END() != *pToken) {
 752
 753             /* Skip version token */
 754             if (shader_is_version_token(*pToken)) {
 755                 ++pToken;
 756                 continue;
 757             }
 758
 759             /* Skip comment tokens */
 760             if (shader_is_comment(*pToken)) {
 761                 DWORD comment_len = (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 762                 ++pToken;
 763                 TRACE("#%s\n", (const char*)pToken);
 764                 pToken += comment_len;
 765                 continue;
 766             }
 767
 768             /* Read opcode */
 769             hw_arg.opcode_token = *pToken++;
 770             curOpcode = shader_get_opcode(iface, hw_arg.opcode_token);
 771
 772             /* Select handler */
 773             if (curOpcode == NULL)
 774                 hw_fct = NULL;
 775             else if (This->baseShader.shader_mode == SHADER_GLSL)
 776                 hw_fct = curOpcode->hw_glsl_fct;
 777             else if (This->baseShader.shader_mode == SHADER_ARB)
 778                 hw_fct = curOpcode->hw_fct;
 779
 780             /* Unknown opcode and its parameters */
 781             if (NULL == curOpcode) {
 782                 FIXME("Unrecognized opcode: token=%08x\n", hw_arg.opcode_token);
 783                 pToken += shader_skip_unrecognized(iface, pToken);
 784
 785             /* Nothing to do */
 786             } else if (WINED3DSIO_DCL == curOpcode->opcode ||
 787                        WINED3DSIO_NOP == curOpcode->opcode ||
 788                        WINED3DSIO_DEF == curOpcode->opcode ||
 789                        WINED3DSIO_DEFI == curOpcode->opcode ||
 790                        WINED3DSIO_DEFB == curOpcode->opcode ||
 791                        WINED3DSIO_PHASE == curOpcode->opcode ||
 792                        WINED3DSIO_RET == curOpcode->opcode) {
 793
 794                 pToken += shader_skip_opcode(This, curOpcode, hw_arg.opcode_token);
 795
 796             /* If a generator function is set for current shader target, use it */
 797             } else if (hw_fct != NULL) {
 798
 799                 hw_arg.opcode = curOpcode;
 800
 801                 /* Destination token */
 802                 if (curOpcode->dst_token) {
 803
 804                     DWORD param, addr_token = 0;
 805                     pToken += shader_get_param(iface, pToken, &param, &addr_token);
 806                     hw_arg.dst = param;
 807                     hw_arg.dst_addr = addr_token;
 808                 }
 809
 810                 /* Predication token */
 811                 if (hw_arg.opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED)
 812                     hw_arg.predicate = *pToken++;
 813
 814                 /* Other source tokens */
 815                 for (i = 0; i < (curOpcode->num_params - curOpcode->dst_token); i++) {
 816
 817                     DWORD param, addr_token = 0;
 818                     pToken += shader_get_param(iface, pToken, &param, &addr_token);
 819                     hw_arg.src[i] = param;
 820                     hw_arg.src_addr[i] = addr_token;
 821                 }
 822
 823                 /* Call appropriate function for output target */
 824                 hw_fct(&hw_arg);
 825
 826                 /* Add color correction if needed */
 827                 device->shader_backend->shader_color_correction(&hw_arg);
 828
 829                 /* Process instruction modifiers for GLSL apps ( _sat, etc. ) */
 830                 if (This->baseShader.shader_mode == SHADER_GLSL)
 831                     shader_glsl_add_instruction_modifiers(&hw_arg);
 832
 833             /* Unhandled opcode */
 834             } else {
 835
 836                 FIXME("Can't handle opcode %s in hwShader\n", curOpcode->name);
 837                 pToken += shader_skip_opcode(This, curOpcode, hw_arg.opcode_token);
 838             }
 839         }
 840         /* TODO: What about result.depth? */
 841
 842     }
 843 }
 844
 845 void shader_dump_ins_modifiers(const DWORD output) {
 846
 847     DWORD shift = (output & WINED3DSP_DSTSHIFT_MASK) >> WINED3DSP_DSTSHIFT_SHIFT;
 848     DWORD mmask = output & WINED3DSP_DSTMOD_MASK;
 849
 850     switch (shift) {
 851         case 0: break;
 852         case 13: TRACE("_d8"); break;
 853         case 14: TRACE("_d4"); break;
 854         case 15: TRACE("_d2"); break;
 855         case 1: TRACE("_x2"); break;
 856         case 2: TRACE("_x4"); break;
 857         case 3: TRACE("_x8"); break;
 858         default: TRACE("_unhandled_shift(%d)", shift); break;
 859     }
 860
 861     if (mmask & WINED3DSPDM_SATURATE)         TRACE("_sat");
 862     if (mmask & WINED3DSPDM_PARTIALPRECISION) TRACE("_pp");
 863     if (mmask & WINED3DSPDM_MSAMPCENTROID)    TRACE("_centroid");
 864
 865     mmask &= ~(WINED3DSPDM_SATURATE | WINED3DSPDM_PARTIALPRECISION | WINED3DSPDM_MSAMPCENTROID);
 866     if (mmask)
 867         FIXME("_unrecognized_modifier(%#x)", mmask >> WINED3DSP_DSTMOD_SHIFT);
 868 }
 869
 870 /* First pass: trace shader, initialize length and version */
 871 void shader_trace_init(
 872     IWineD3DBaseShader *iface,
 873     const DWORD* pFunction) {
 874
 875     IWineD3DBaseShaderImpl *This =(IWineD3DBaseShaderImpl *)iface;
 876
 877     const DWORD* pToken = pFunction;
 878     const SHADER_OPCODE* curOpcode = NULL;
 879     DWORD opcode_token;
 880     unsigned int len = 0;
 881     DWORD i;
 882
 883     TRACE("(%p) : Parsing programme\n", This);
 884
 885     if (NULL != pToken) {
 886         while (WINED3DVS_END() != *pToken) {
 887             if (shader_is_version_token(*pToken)) { /** version */
 888                 This->baseShader.hex_version = *pToken;
 889                 TRACE("%s_%u_%u\n", shader_is_pshader_version(This->baseShader.hex_version)? "ps": "vs",
 890                     WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version),
 891                     WINED3DSHADER_VERSION_MINOR(This->baseShader.hex_version));
 892                 ++pToken;
 893                 ++len;
 894                 continue;
 895             }
 896             if (shader_is_comment(*pToken)) { /** comment */
 897                 DWORD comment_len = (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 898                 ++pToken;
 899                 TRACE("//%s\n", (const char*)pToken);
 900                 pToken += comment_len;
 901                 len += comment_len + 1;
 902                 continue;
 903             }
 904             opcode_token = *pToken++;
 905             curOpcode = shader_get_opcode(iface, opcode_token);
 906             len++;
 907
 908             if (NULL == curOpcode) {
 909                 int tokens_read;
 910                 FIXME("Unrecognized opcode: token=%08x\n", opcode_token);
 911                 tokens_read = shader_skip_unrecognized(iface, pToken);
 912                 pToken += tokens_read;
 913                 len += tokens_read;
 914
 915             } else {
 916                 if (curOpcode->opcode == WINED3DSIO_DCL) {
 917
 918                     DWORD usage = *pToken;
 919                     DWORD param = *(pToken + 1);
 920
 921                     shader_dump_decl_usage(This, usage, param);
 922                     shader_dump_ins_modifiers(param);
 923                     TRACE(" ");
 924                     shader_dump_param(iface, param, 0, 0);
 925                     pToken += 2;
 926                     len += 2;
 927
 928                 } else if (curOpcode->opcode == WINED3DSIO_DEF) {
 929
 930                         unsigned int offset = shader_get_float_offset(*pToken);
 931
 932                         TRACE("def c%u = %f, %f, %f, %f", offset,
 933                             *(const float *)(pToken + 1),
 934                             *(const float *)(pToken + 2),
 935                             *(const float *)(pToken + 3),
 936                             *(const float *)(pToken + 4));
 937
 938                         pToken += 5;
 939                         len += 5;
 940                 } else if (curOpcode->opcode == WINED3DSIO_DEFI) {
 941
 942                         TRACE("defi i%u = %d, %d, %d, %d", *pToken & WINED3DSP_REGNUM_MASK,
 943                             *(pToken + 1),
 944                             *(pToken + 2),
 945                             *(pToken + 3),
 946                             *(pToken + 4));
 947
 948                         pToken += 5;
 949                         len += 5;
 950
 951                 } else if (curOpcode->opcode == WINED3DSIO_DEFB) {
 952
 953                         TRACE("defb b%u = %s", *pToken & WINED3DSP_REGNUM_MASK,
 954                             *(pToken + 1)? "true": "false");
 955
 956                         pToken += 2;
 957                         len += 2;
 958
 959                 } else {
 960
 961                     DWORD param, addr_token;
 962                     int tokens_read;
 963
 964                     /* Print out predication source token first - it follows
 965                      * the destination token. */
 966                     if (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED) {
 967                         TRACE("(");
 968                         shader_dump_param(iface, *(pToken + 2), 0, 1);
 969                         TRACE(") ");
 970                     }
 971                     if (opcode_token & WINED3DSI_COISSUE) {
 972                         /* PixWin marks instructions with the coissue flag with a '+' */
 973                         TRACE("+");
 974                     }
 975
 976                     TRACE("%s", curOpcode->name);
 977
 978                     if (curOpcode->opcode == WINED3DSIO_IFC ||
 979                         curOpcode->opcode == WINED3DSIO_BREAKC) {
 980
 981                         DWORD op = (opcode_token & INST_CONTROLS_MASK) >> INST_CONTROLS_SHIFT;
 982                         switch (op) {
 983                             case COMPARISON_GT: TRACE("_gt"); break;
 984                             case COMPARISON_EQ: TRACE("_eq"); break;
 985                             case COMPARISON_GE: TRACE("_ge"); break;
 986                             case COMPARISON_LT: TRACE("_lt"); break;
 987                             case COMPARISON_NE: TRACE("_ne"); break;
 988                             case COMPARISON_LE: TRACE("_le"); break;
 989                             default:
 990                                 TRACE("_(%u)", op);
 991                         }
 992                     } else if (curOpcode->opcode == WINED3DSIO_TEX &&
 993                                This->baseShader.hex_version >= WINED3DPS_VERSION(2,0)) {
 994                         if(opcode_token & WINED3DSI_TEXLD_PROJECT) TRACE("p");
 995                     }
 996
 997                     /* Destination token */
 998                     if (curOpcode->dst_token) {
 999
1000                         /* Destination token */
1001                         tokens_read = shader_get_param(iface, pToken, &param, &addr_token);
1002                         pToken += tokens_read;
1003                         len += tokens_read;
1004
1005                         shader_dump_ins_modifiers(param);
1006                         TRACE(" ");
1007                         shader_dump_param(iface, param, addr_token, 0);
1008                     }
1009
1010                     /* Predication token - already printed out, just skip it */
1011                     if (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED) {
1012                         pToken++;
1013                         len++;
1014                     }
1015
1016                     /* Other source tokens */
1017                     for (i = curOpcode->dst_token; i < curOpcode->num_params; ++i) {
1018
1019                         tokens_read = shader_get_param(iface, pToken, &param, &addr_token);
1020                         pToken += tokens_read;
1021                         len += tokens_read;
1022
1023                         TRACE((i == 0)? " " : ", ");
1024                         shader_dump_param(iface, param, addr_token, 1);
1025                     }
1026                 }
1027                 TRACE("\n");
1028             }
1029         }
1030         This->baseShader.functionLength = (len + 1) * sizeof(DWORD);
1031     } else {
1032         This->baseShader.functionLength = 1; /* no Function defined use fixed function vertex processing */
1033     }
1034 }
1035
1036 void shader_delete_constant_list(
1037     struct list* clist) {
1038
1039     struct list *ptr;
1040     struct local_constant* constant;
1041
1042     ptr = list_head(clist);
1043     while (ptr) {
1044         constant = LIST_ENTRY(ptr, struct local_constant, entry);
1045         ptr = list_next(clist, ptr);
1046         HeapFree(GetProcessHeap(), 0, constant);
1047     }
1048 }
1049
1050 static void shader_none_select(IWineD3DDevice *iface, BOOL usePS, BOOL useVS) {}
1051 static void shader_none_select_depth_blt(IWineD3DDevice *iface) {}
1052 static void shader_none_load_constants(IWineD3DDevice *iface, char usePS, char useVS) {}
1053 static void shader_none_cleanup(IWineD3DDevice *iface) {}
1054
1055 const shader_backend_t none_shader_backend = {
1056     &shader_none_select,
1057     &shader_none_select_depth_blt,
1058     &shader_none_load_constants,
1059     &shader_none_cleanup
1060 };