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  * Copyright 2007-2008 Stefan Dösinger for CodeWeavers
  10  *
  11  * This library is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU Lesser General Public
  13  * License as published by the Free Software Foundation; either
  14  * version 2.1 of the License, or (at your option) any later version.
  15  *
  16  * This library is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * Lesser General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU Lesser General Public
  22  * License along with this library; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  24  */
  25
  26 #include "config.h"
  27 #include <string.h>
  28 #include <stdio.h>
  29 #include "wined3d_private.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(d3d_shader);
  32
  33 #define GLNAME_REQUIRE_GLSL  ((const char *)1)
  34
  35 static inline BOOL shader_is_version_token(DWORD token) {
  36     return shader_is_pshader_version(token) ||
  37            shader_is_vshader_version(token);
  38 }
  39
  40 int shader_addline(
  41     SHADER_BUFFER* buffer,
  42     const char *format, ...) {
  43
  44     char* base = buffer->buffer + buffer->bsize;
  45     int rc;
  46
  47     va_list args;
  48     va_start(args, format);
  49     rc = vsnprintf(base, SHADER_PGMSIZE - 1 - buffer->bsize, format, args);
  50     va_end(args);
  51
  52     if (rc < 0 ||                                   /* C89 */
  53         rc > SHADER_PGMSIZE - 1 - buffer->bsize) {  /* C99 */
  54
  55         ERR("The buffer allocated for the shader program string "
  56             "is too small at %d bytes.\n", SHADER_PGMSIZE);
  57         buffer->bsize = SHADER_PGMSIZE - 1;
  58         return -1;
  59     }
  60
  61     if (buffer->newline) {
  62         TRACE("GL HW (%u, %u) : %s", buffer->lineNo + 1, buffer->bsize, base);
  63         buffer->newline = FALSE;
  64     } else {
  65         TRACE("%s", base);
  66     }
  67
  68     buffer->bsize += rc;
  69     if (buffer->buffer[buffer->bsize-1] == '\n') {
  70         buffer->lineNo++;
  71         buffer->newline = TRUE;
  72     }
  73     return 0;
  74 }
  75
  76 const SHADER_OPCODE* shader_get_opcode(
  77     IWineD3DBaseShader *iface, const DWORD code) {
  78
  79     IWineD3DBaseShaderImpl *This = (IWineD3DBaseShaderImpl*) iface;
  80
  81     DWORD i = 0;
  82     DWORD hex_version = This->baseShader.hex_version;
  83     const SHADER_OPCODE *shader_ins = This->baseShader.shader_ins;
  84
  85     /** TODO: use dichotomic search */
  86     while (NULL != shader_ins[i].name) {
  87         if (((code & WINED3DSI_OPCODE_MASK) == shader_ins[i].opcode) &&
  88             (((hex_version >= shader_ins[i].min_version) && (hex_version <= shader_ins[i].max_version)) ||
  89             ((shader_ins[i].min_version == 0) && (shader_ins[i].max_version == 0)))) {
  90             return &shader_ins[i];
  91         }
  92         ++i;
  93     }
  94     FIXME("Unsupported opcode %#x(%d) masked %#x, shader version %#x\n",
  95        code, code, code & WINED3DSI_OPCODE_MASK, hex_version);
  96     return NULL;
  97 }
  98
  99 /* Read a parameter opcode from the input stream,
 100  * and possibly a relative addressing token.
 101  * Return the number of tokens read */
 102 int shader_get_param(
 103     IWineD3DBaseShader* iface,
 104     const DWORD* pToken,
 105     DWORD* param,
 106     DWORD* addr_token) {
 107
 108     /* PS >= 3.0 have relative addressing (with token)
 109      * VS >= 2.0 have relative addressing (with token)
 110      * VS >= 1.0 < 2.0 have relative addressing (without token)
 111      * The version check below should work in general */
 112
 113     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 114     char rel_token = WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) >= 2 &&
 115         ((*pToken & WINED3DSHADER_ADDRESSMODE_MASK) == WINED3DSHADER_ADDRMODE_RELATIVE);
 116
 117     *param = *pToken;
 118     *addr_token = rel_token? *(pToken + 1): 0;
 119     return rel_token? 2:1;
 120 }
 121
 122 /* Return the number of parameters to skip for an opcode */
 123 static inline int shader_skip_opcode(
 124     IWineD3DBaseShaderImpl* This,
 125     const SHADER_OPCODE* curOpcode,
 126     DWORD opcode_token) {
 127
 128    /* Shaders >= 2.0 may contain address tokens, but fortunately they
 129     * have a useful length mask - use it here. Shaders 1.0 contain no such tokens */
 130
 131     return (WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) >= 2)?
 132         ((opcode_token & WINED3DSI_INSTLENGTH_MASK) >> WINED3DSI_INSTLENGTH_SHIFT):
 133         curOpcode->num_params;
 134 }
 135
 136 /* Read the parameters of an unrecognized opcode from the input stream
 137  * Return the number of tokens read.
 138  *
 139  * Note: This function assumes source or destination token format.
 140  * It will not work with specially-formatted tokens like DEF or DCL,
 141  * but hopefully those would be recognized */
 142
 143 int shader_skip_unrecognized(
 144     IWineD3DBaseShader* iface,
 145     const DWORD* pToken) {
 146
 147     int tokens_read = 0;
 148     int i = 0;
 149
 150     /* TODO: Think of a good name for 0x80000000 and replace it with a constant */
 151     while (*pToken & 0x80000000) {
 152
 153         DWORD param, addr_token;
 154         tokens_read += shader_get_param(iface, pToken, &param, &addr_token);
 155         pToken += tokens_read;
 156
 157         FIXME("Unrecognized opcode param: token=0x%08x "
 158             "addr_token=0x%08x name=", param, addr_token);
 159         shader_dump_param(iface, param, addr_token, i);
 160         FIXME("\n");
 161         ++i;
 162     }
 163     return tokens_read;
 164 }
 165
 166 /* Convert floating point offset relative
 167  * to a register file to an absolute offset for float constants */
 168
 169 unsigned int shader_get_float_offset(const DWORD reg) {
 170
 171      unsigned int regnum = reg & WINED3DSP_REGNUM_MASK;
 172      int regtype = shader_get_regtype(reg);
 173
 174      switch (regtype) {
 175         case WINED3DSPR_CONST: return regnum;
 176         case WINED3DSPR_CONST2: return 2048 + regnum;
 177         case WINED3DSPR_CONST3: return 4096 + regnum;
 178         case WINED3DSPR_CONST4: return 6144 + regnum;
 179         default:
 180             FIXME("Unsupported register type: %d\n", regtype);
 181             return regnum;
 182      }
 183 }
 184
 185 static void shader_delete_constant_list(struct list* clist) {
 186
 187     struct list *ptr;
 188     struct local_constant* constant;
 189
 190     ptr = list_head(clist);
 191     while (ptr) {
 192         constant = LIST_ENTRY(ptr, struct local_constant, entry);
 193         ptr = list_next(clist, ptr);
 194         HeapFree(GetProcessHeap(), 0, constant);
 195     }
 196     list_init(clist);
 197 }
 198
 199 /* Note that this does not count the loop register
 200  * as an address register. */
 201
 202 HRESULT shader_get_registers_used(
 203     IWineD3DBaseShader *iface,
 204     shader_reg_maps* reg_maps,
 205     semantic* semantics_in,
 206     semantic* semantics_out,
 207     CONST DWORD* pToken,
 208     IWineD3DStateBlockImpl *stateBlock) {
 209
 210     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 211     unsigned int cur_loop_depth = 0, max_loop_depth = 0;
 212
 213     /* There are some minor differences between pixel and vertex shaders */
 214     char pshader = shader_is_pshader_version(This->baseShader.hex_version);
 215
 216     memset(reg_maps->bumpmat, 0, sizeof(reg_maps->bumpmat));
 217     memset(reg_maps->luminanceparams, 0, sizeof(reg_maps->luminanceparams));
 218
 219     if (pToken == NULL)
 220         return WINED3D_OK;
 221
 222     /* get_registers_used is called on every compile on some 1.x shaders, which can result
 223      * in stacking up a collection of local constants. Delete the old constants if existing
 224      */
 225     shader_delete_constant_list(&This->baseShader.constantsF);
 226     shader_delete_constant_list(&This->baseShader.constantsB);
 227     shader_delete_constant_list(&This->baseShader.constantsI);
 228
 229     while (WINED3DVS_END() != *pToken) {
 230         CONST SHADER_OPCODE* curOpcode;
 231         DWORD opcode_token;
 232
 233         /* Skip version */
 234         if (shader_is_version_token(*pToken)) {
 235              ++pToken;
 236              continue;
 237
 238         /* Skip comments */
 239         } else if (shader_is_comment(*pToken)) {
 240              DWORD comment_len = (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 241              ++pToken;
 242              pToken += comment_len;
 243              continue;
 244         }
 245
 246         /* Fetch opcode */
 247         opcode_token = *pToken++;
 248         curOpcode = shader_get_opcode(iface, opcode_token);
 249
 250         /* Unhandled opcode, and its parameters */
 251         if (NULL == curOpcode) {
 252            while (*pToken & 0x80000000)
 253                ++pToken;
 254
 255         /* Handle declarations */
 256         } else if (WINED3DSIO_DCL == curOpcode->opcode) {
 257
 258             DWORD usage = *pToken++;
 259             DWORD param = *pToken++;
 260             DWORD regtype = shader_get_regtype(param);
 261             unsigned int regnum = param & WINED3DSP_REGNUM_MASK;
 262
 263             /* Vshader: mark attributes used
 264                Pshader: mark 3.0 input registers used, save token */
 265             if (WINED3DSPR_INPUT == regtype) {
 266
 267                 if (!pshader)
 268                     reg_maps->attributes[regnum] = 1;
 269                 else
 270                     reg_maps->packed_input[regnum] = 1;
 271
 272                 semantics_in[regnum].usage = usage;
 273                 semantics_in[regnum].reg = param;
 274
 275             /* Vshader: mark 3.0 output registers used, save token */
 276             } else if (WINED3DSPR_OUTPUT == regtype) {
 277                 reg_maps->packed_output[regnum] = 1;
 278                 semantics_out[regnum].usage = usage;
 279                 semantics_out[regnum].reg = param;
 280                 if (usage & (WINED3DDECLUSAGE_FOG << WINED3DSP_DCL_USAGE_SHIFT))
 281                     reg_maps->fog = 1;
 282
 283             /* Save sampler usage token */
 284             } else if (WINED3DSPR_SAMPLER == regtype)
 285                 reg_maps->samplers[regnum] = usage;
 286
 287         } else if (WINED3DSIO_DEF == curOpcode->opcode) {
 288
 289             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 290             if (!lconst) return E_OUTOFMEMORY;
 291             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 292             memcpy(lconst->value, pToken + 1, 4 * sizeof(DWORD));
 293
 294             /* In pixel shader 1.X shaders, the constants are clamped between [-1;1] */
 295             if(WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) == 1 && pshader) {
 296                 float *value = (float *) lconst->value;
 297                 if(value[0] < -1.0) value[0] = -1.0;
 298                 else if(value[0] >  1.0) value[0] =  1.0;
 299                 if(value[1] < -1.0) value[1] = -1.0;
 300                 else if(value[1] >  1.0) value[1] =  1.0;
 301                 if(value[2] < -1.0) value[2] = -1.0;
 302                 else if(value[2] >  1.0) value[2] =  1.0;
 303                 if(value[3] < -1.0) value[3] = -1.0;
 304                 else if(value[3] >  1.0) value[3] =  1.0;
 305             }
 306
 307             list_add_head(&This->baseShader.constantsF, &lconst->entry);
 308             pToken += curOpcode->num_params;
 309
 310         } else if (WINED3DSIO_DEFI == curOpcode->opcode) {
 311
 312             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 313             if (!lconst) return E_OUTOFMEMORY;
 314             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 315             memcpy(lconst->value, pToken + 1, 4 * sizeof(DWORD));
 316             list_add_head(&This->baseShader.constantsI, &lconst->entry);
 317             pToken += curOpcode->num_params;
 318
 319         } else if (WINED3DSIO_DEFB == curOpcode->opcode) {
 320
 321             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 322             if (!lconst) return E_OUTOFMEMORY;
 323             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 324             memcpy(lconst->value, pToken + 1, 1 * sizeof(DWORD));
 325             list_add_head(&This->baseShader.constantsB, &lconst->entry);
 326             pToken += curOpcode->num_params;
 327
 328         /* If there's a loop in the shader */
 329         } else if (WINED3DSIO_LOOP == curOpcode->opcode ||
 330                    WINED3DSIO_REP == curOpcode->opcode) {
 331             cur_loop_depth++;
 332             if(cur_loop_depth > max_loop_depth)
 333                 max_loop_depth = cur_loop_depth;
 334             pToken += curOpcode->num_params;
 335
 336         } else if (WINED3DSIO_ENDLOOP == curOpcode->opcode ||
 337                    WINED3DSIO_ENDREP == curOpcode->opcode) {
 338             cur_loop_depth--;
 339
 340         /* For subroutine prototypes */
 341         } else if (WINED3DSIO_LABEL == curOpcode->opcode) {
 342
 343             DWORD snum = *pToken & WINED3DSP_REGNUM_MASK;
 344             reg_maps->labels[snum] = 1;
 345             pToken += curOpcode->num_params;
 346
 347         /* Set texture, address, temporary registers */
 348         } else {
 349             int i, limit;
 350
 351             /* Declare 1.X samplers implicitly, based on the destination reg. number */
 352             if (WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) == 1 &&
 353                 pshader /* Filter different instructions with the same enum values in VS */ &&
 354                 (WINED3DSIO_TEX == curOpcode->opcode ||
 355                  WINED3DSIO_TEXBEM == curOpcode->opcode ||
 356                  WINED3DSIO_TEXBEML == curOpcode->opcode ||
 357                  WINED3DSIO_TEXDP3TEX == curOpcode->opcode ||
 358                  WINED3DSIO_TEXM3x2TEX == curOpcode->opcode ||
 359                  WINED3DSIO_TEXM3x3SPEC == curOpcode->opcode ||
 360                  WINED3DSIO_TEXM3x3TEX == curOpcode->opcode ||
 361                  WINED3DSIO_TEXM3x3VSPEC == curOpcode->opcode ||
 362                  WINED3DSIO_TEXREG2AR == curOpcode->opcode ||
 363                  WINED3DSIO_TEXREG2GB == curOpcode->opcode ||
 364                  WINED3DSIO_TEXREG2RGB == curOpcode->opcode)) {
 365
 366                 /* Fake sampler usage, only set reserved bit and ttype */
 367                 DWORD sampler_code = *pToken & WINED3DSP_REGNUM_MASK;
 368
 369                 if(!stateBlock->textures[sampler_code]) {
 370                     ERR("No texture bound to sampler %d\n", sampler_code);
 371                     reg_maps->samplers[sampler_code] = (0x1 << 31) | WINED3DSTT_2D;
 372                 } else {
 373                     int texType = IWineD3DBaseTexture_GetTextureDimensions(stateBlock->textures[sampler_code]);
 374                     switch(texType) {
 375                         /* We have to select between texture rectangles and 2D textures later because 2.0 and
 376                          * 3.0 shaders only have WINED3DSTT_2D as well
 377                          */
 378                         case GL_TEXTURE_RECTANGLE_ARB:
 379                         case GL_TEXTURE_2D:
 380                             reg_maps->samplers[sampler_code] = (0x1 << 31) | WINED3DSTT_2D;
 381                             break;
 382
 383                         case GL_TEXTURE_3D:
 384                             reg_maps->samplers[sampler_code] = (0x1 << 31) | WINED3DSTT_VOLUME;
 385                             break;
 386
 387                         case GL_TEXTURE_CUBE_MAP_ARB:
 388                             reg_maps->samplers[sampler_code] = (0x1 << 31) | WINED3DSTT_CUBE;
 389                             break;
 390
 391                         default:
 392                             ERR("Unexpected gl texture type found: %d\n", texType);
 393                             reg_maps->samplers[sampler_code] = (0x1 << 31) | WINED3DSTT_2D;
 394                     }
 395                 }
 396
 397                 /* texbem is only valid with < 1.4 pixel shaders */
 398                 if(WINED3DSIO_TEXBEM  == curOpcode->opcode ||
 399                     WINED3DSIO_TEXBEML == curOpcode->opcode) {
 400                     reg_maps->bumpmat[sampler_code] = TRUE;
 401                     if(WINED3DSIO_TEXBEML == curOpcode->opcode) {
 402                         reg_maps->luminanceparams[sampler_code] = TRUE;
 403                     }
 404                 }
 405             }
 406             if(WINED3DSIO_NRM  == curOpcode->opcode) {
 407                 reg_maps->usesnrm = 1;
 408             } else if(WINED3DSIO_BEM == curOpcode->opcode && pshader) {
 409                 DWORD regnum = *pToken & WINED3DSP_REGNUM_MASK;
 410                 reg_maps->bumpmat[regnum] = TRUE;
 411             } else if(WINED3DSIO_DSY  == curOpcode->opcode) {
 412                 reg_maps->usesdsy = 1;
 413             }
 414
 415             /* This will loop over all the registers and try to
 416              * make a bitmask of the ones we're interested in.
 417              *
 418              * Relative addressing tokens are ignored, but that's
 419              * okay, since we'll catch any address registers when
 420              * they are initialized (required by spec) */
 421
 422             limit = (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED)?
 423                 curOpcode->num_params + 1: curOpcode->num_params;
 424
 425             for (i = 0; i < limit; ++i) {
 426
 427                 DWORD param, addr_token, reg, regtype;
 428                 pToken += shader_get_param(iface, pToken, &param, &addr_token);
 429
 430                 regtype = shader_get_regtype(param);
 431                 reg = param & WINED3DSP_REGNUM_MASK;
 432
 433                 if (WINED3DSPR_TEXTURE == regtype) { /* vs: WINED3DSPR_ADDR */
 434
 435                     if (pshader)
 436                         reg_maps->texcoord[reg] = 1;
 437                     else
 438                         reg_maps->address[reg] = 1;
 439                 }
 440
 441                 else if (WINED3DSPR_TEMP == regtype)
 442                     reg_maps->temporary[reg] = 1;
 443
 444                 else if (WINED3DSPR_INPUT == regtype) {
 445                     if( !pshader)
 446                         reg_maps->attributes[reg] = 1;
 447                     else {
 448                         if(param & WINED3DSHADER_ADDRMODE_RELATIVE) {
 449                             /* If relative addressing is used, we must assume that all registers
 450                              * are used. Even if it is a construct like v3[aL], we can't assume
 451                              * that v0, v1 and v2 aren't read because aL can be negative
 452                              */
 453                             unsigned int i;
 454                             for(i = 0; i < MAX_REG_INPUT; i++) {
 455                                 ((IWineD3DPixelShaderImpl *) This)->input_reg_used[i] = TRUE;
 456                             }
 457                         } else {
 458                             ((IWineD3DPixelShaderImpl *) This)->input_reg_used[reg] = TRUE;
 459                         }
 460                     }
 461                 }
 462
 463                 else if (WINED3DSPR_RASTOUT == regtype && reg == 1)
 464                     reg_maps->fog = 1;
 465
 466                 else if (WINED3DSPR_MISCTYPE == regtype && reg == 0 && pshader)
 467                     reg_maps->vpos = 1;
 468
 469                 else if(WINED3DSPR_CONST == regtype) {
 470                     if(param & WINED3DSHADER_ADDRMODE_RELATIVE) {
 471                         if(!pshader) {
 472                             if(reg <= ((IWineD3DVertexShaderImpl *) This)->min_rel_offset) {
 473                                 ((IWineD3DVertexShaderImpl *) This)->min_rel_offset = reg;
 474                             } else if(reg >= ((IWineD3DVertexShaderImpl *) This)->max_rel_offset) {
 475                                 ((IWineD3DVertexShaderImpl *) This)->max_rel_offset = reg;
 476                             }
 477                         }
 478                         reg_maps->usesrelconstF = TRUE;
 479                     }
 480                 }
 481
 482                 /* WINED3DSPR_TEXCRDOUT is the same as WINED3DSPR_OUTPUT. _OUTPUT can be > MAX_REG_TEXCRD and is used
 483                  * in >= 3.0 shaders. Filter 3.0 shaders to prevent overflows, and also filter pixel shaders because TECRDOUT
 484                  * isn't used in them, but future register types might cause issues
 485                  */
 486                 else if(WINED3DSPR_TEXCRDOUT == regtype && i == 0 /* Only look at writes */ &&
 487                         !pshader && WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) < 3) {
 488                     reg_maps->texcoord_mask[reg] |= shader_get_writemask(param);
 489                 }
 490             }
 491         }
 492     }
 493     reg_maps->loop_depth = max_loop_depth;
 494
 495     return WINED3D_OK;
 496 }
 497
 498 static void shader_dump_decl_usage(
 499     IWineD3DBaseShaderImpl* This,
 500     DWORD decl,
 501     DWORD param) {
 502
 503     DWORD regtype = shader_get_regtype(param);
 504
 505     TRACE("dcl");
 506
 507     if (regtype == WINED3DSPR_SAMPLER) {
 508         DWORD ttype = decl & WINED3DSP_TEXTURETYPE_MASK;
 509
 510         switch (ttype) {
 511             case WINED3DSTT_2D: TRACE("_2d"); break;
 512             case WINED3DSTT_CUBE: TRACE("_cube"); break;
 513             case WINED3DSTT_VOLUME: TRACE("_volume"); break;
 514             default: TRACE("_unknown_ttype(0x%08x)", ttype);
 515        }
 516
 517     } else {
 518
 519         DWORD usage = decl & WINED3DSP_DCL_USAGE_MASK;
 520         DWORD idx = (decl & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
 521
 522         /* Pixel shaders 3.0 don't have usage semantics */
 523         char pshader = shader_is_pshader_version(This->baseShader.hex_version);
 524         if (pshader && This->baseShader.hex_version < WINED3DPS_VERSION(3,0))
 525             return;
 526         else
 527             TRACE("_");
 528
 529         switch(usage) {
 530         case WINED3DDECLUSAGE_POSITION:
 531             TRACE("position%d", idx);
 532             break;
 533         case WINED3DDECLUSAGE_BLENDINDICES:
 534             TRACE("blend");
 535             break;
 536         case WINED3DDECLUSAGE_BLENDWEIGHT:
 537             TRACE("weight");
 538             break;
 539         case WINED3DDECLUSAGE_NORMAL:
 540             TRACE("normal%d", idx);
 541             break;
 542         case WINED3DDECLUSAGE_PSIZE:
 543             TRACE("psize");
 544             break;
 545         case WINED3DDECLUSAGE_COLOR:
 546             if(idx == 0)  {
 547                 TRACE("color");
 548             } else {
 549                 TRACE("specular%d", (idx - 1));
 550             }
 551             break;
 552         case WINED3DDECLUSAGE_TEXCOORD:
 553             TRACE("texture%d", idx);
 554             break;
 555         case WINED3DDECLUSAGE_TANGENT:
 556             TRACE("tangent");
 557             break;
 558         case WINED3DDECLUSAGE_BINORMAL:
 559             TRACE("binormal");
 560             break;
 561         case WINED3DDECLUSAGE_TESSFACTOR:
 562             TRACE("tessfactor");
 563             break;
 564         case WINED3DDECLUSAGE_POSITIONT:
 565             TRACE("positionT%d", idx);
 566             break;
 567         case WINED3DDECLUSAGE_FOG:
 568             TRACE("fog");
 569             break;
 570         case WINED3DDECLUSAGE_DEPTH:
 571             TRACE("depth");
 572             break;
 573         case WINED3DDECLUSAGE_SAMPLE:
 574             TRACE("sample");
 575             break;
 576         default:
 577             FIXME("unknown_semantics(0x%08x)", usage);
 578         }
 579     }
 580 }
 581
 582 static void shader_dump_arr_entry(
 583     IWineD3DBaseShader *iface,
 584     const DWORD param,
 585     const DWORD addr_token,
 586     unsigned int reg,
 587     int input) {
 588
 589     char relative =
 590         ((param & WINED3DSHADER_ADDRESSMODE_MASK) == WINED3DSHADER_ADDRMODE_RELATIVE);
 591
 592     if (relative) {
 593         TRACE("[");
 594         if (addr_token)
 595             shader_dump_param(iface, addr_token, 0, input);
 596         else
 597             TRACE("a0.x");
 598         TRACE(" + ");
 599      }
 600      TRACE("%u", reg);
 601      if (relative)
 602          TRACE("]");
 603 }
 604
 605 void shader_dump_param(
 606     IWineD3DBaseShader *iface,
 607     const DWORD param,
 608     const DWORD addr_token,
 609     int input) {
 610
 611     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 612     static const char * const rastout_reg_names[] = { "oPos", "oFog", "oPts" };
 613     static const char * const misctype_reg_names[] = { "vPos", "vFace"};
 614     char swizzle_reg_chars[4];
 615
 616     DWORD reg = param & WINED3DSP_REGNUM_MASK;
 617     DWORD regtype = shader_get_regtype(param);
 618     DWORD modifier = param & WINED3DSP_SRCMOD_MASK;
 619
 620     /* There are some minor differences between pixel and vertex shaders */
 621     char pshader = shader_is_pshader_version(This->baseShader.hex_version);
 622
 623     /* For one, we'd prefer color components to be shown for pshaders.
 624      * FIXME: use the swizzle function for this */
 625
 626     swizzle_reg_chars[0] = pshader? 'r': 'x';
 627     swizzle_reg_chars[1] = pshader? 'g': 'y';
 628     swizzle_reg_chars[2] = pshader? 'b': 'z';
 629     swizzle_reg_chars[3] = pshader? 'a': 'w';
 630
 631     if (input) {
 632         if ( (modifier == WINED3DSPSM_NEG) ||
 633              (modifier == WINED3DSPSM_BIASNEG) ||
 634              (modifier == WINED3DSPSM_SIGNNEG) ||
 635              (modifier == WINED3DSPSM_X2NEG) ||
 636              (modifier == WINED3DSPSM_ABSNEG) )
 637             TRACE("-");
 638         else if (modifier == WINED3DSPSM_COMP)
 639             TRACE("1-");
 640         else if (modifier == WINED3DSPSM_NOT)
 641             TRACE("!");
 642
 643         if (modifier == WINED3DSPSM_ABS || modifier == WINED3DSPSM_ABSNEG)
 644             TRACE("abs(");
 645     }
 646
 647     switch (regtype) {
 648         case WINED3DSPR_TEMP:
 649             TRACE("r%u", reg);
 650             break;
 651         case WINED3DSPR_INPUT:
 652             TRACE("v");
 653             shader_dump_arr_entry(iface, param, addr_token, reg, input);
 654             break;
 655         case WINED3DSPR_CONST:
 656         case WINED3DSPR_CONST2:
 657         case WINED3DSPR_CONST3:
 658         case WINED3DSPR_CONST4:
 659             TRACE("c");
 660             shader_dump_arr_entry(iface, param, addr_token, shader_get_float_offset(param), input);
 661             break;
 662         case WINED3DSPR_TEXTURE: /* vs: case D3DSPR_ADDR */
 663             TRACE("%c%u", (pshader? 't':'a'), reg);
 664             break;
 665         case WINED3DSPR_RASTOUT:
 666             TRACE("%s", rastout_reg_names[reg]);
 667             break;
 668         case WINED3DSPR_COLOROUT:
 669             TRACE("oC%u", reg);
 670             break;
 671         case WINED3DSPR_DEPTHOUT:
 672             TRACE("oDepth");
 673             break;
 674         case WINED3DSPR_ATTROUT:
 675             TRACE("oD%u", reg);
 676             break;
 677         case WINED3DSPR_TEXCRDOUT:
 678
 679             /* Vertex shaders >= 3.0 use general purpose output registers
 680              * (WINED3DSPR_OUTPUT), which can include an address token */
 681
 682             if (WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version) >= 3) {
 683                 TRACE("o");
 684                 shader_dump_arr_entry(iface, param, addr_token, reg, input);
 685             }
 686             else
 687                TRACE("oT%u", reg);
 688             break;
 689         case WINED3DSPR_CONSTINT:
 690             TRACE("i");
 691             shader_dump_arr_entry(iface, param, addr_token, reg, input);
 692             break;
 693         case WINED3DSPR_CONSTBOOL:
 694             TRACE("b");
 695             shader_dump_arr_entry(iface, param, addr_token, reg, input);
 696             break;
 697         case WINED3DSPR_LABEL:
 698             TRACE("l%u", reg);
 699             break;
 700         case WINED3DSPR_LOOP:
 701             TRACE("aL");
 702             break;
 703         case WINED3DSPR_SAMPLER:
 704             TRACE("s%u", reg);
 705             break;
 706         case WINED3DSPR_MISCTYPE:
 707             if (reg > 1) {
 708                 FIXME("Unhandled misctype register %d\n", reg);
 709             } else {
 710                 TRACE("%s", misctype_reg_names[reg]);
 711             }
 712             break;
 713         case WINED3DSPR_PREDICATE:
 714             TRACE("p%u", reg);
 715             break;
 716         default:
 717             TRACE("unhandled_rtype(%#x)", regtype);
 718             break;
 719    }
 720
 721    if (!input) {
 722        /* operand output (for modifiers and shift, see dump_ins_modifiers) */
 723
 724        if ((param & WINED3DSP_WRITEMASK_ALL) != WINED3DSP_WRITEMASK_ALL) {
 725            TRACE(".");
 726            if (param & WINED3DSP_WRITEMASK_0) TRACE("%c", swizzle_reg_chars[0]);
 727            if (param & WINED3DSP_WRITEMASK_1) TRACE("%c", swizzle_reg_chars[1]);
 728            if (param & WINED3DSP_WRITEMASK_2) TRACE("%c", swizzle_reg_chars[2]);
 729            if (param & WINED3DSP_WRITEMASK_3) TRACE("%c", swizzle_reg_chars[3]);
 730        }
 731
 732    } else {
 733         /** operand input */
 734         DWORD swizzle = (param & WINED3DSP_SWIZZLE_MASK) >> WINED3DSP_SWIZZLE_SHIFT;
 735         DWORD swizzle_r = swizzle & 0x03;
 736         DWORD swizzle_g = (swizzle >> 2) & 0x03;
 737         DWORD swizzle_b = (swizzle >> 4) & 0x03;
 738         DWORD swizzle_a = (swizzle >> 6) & 0x03;
 739
 740         if (0 != modifier) {
 741             switch (modifier) {
 742                 case WINED3DSPSM_NONE:    break;
 743                 case WINED3DSPSM_NEG:     break;
 744                 case WINED3DSPSM_NOT:     break;
 745                 case WINED3DSPSM_BIAS:    TRACE("_bias"); break;
 746                 case WINED3DSPSM_BIASNEG: TRACE("_bias"); break;
 747                 case WINED3DSPSM_SIGN:    TRACE("_bx2"); break;
 748                 case WINED3DSPSM_SIGNNEG: TRACE("_bx2"); break;
 749                 case WINED3DSPSM_COMP:    break;
 750                 case WINED3DSPSM_X2:      TRACE("_x2"); break;
 751                 case WINED3DSPSM_X2NEG:   TRACE("_x2"); break;
 752                 case WINED3DSPSM_DZ:      TRACE("_dz"); break;
 753                 case WINED3DSPSM_DW:      TRACE("_dw"); break;
 754                 case WINED3DSPSM_ABSNEG:  TRACE(")"); break;
 755                 case WINED3DSPSM_ABS:     TRACE(")"); break;
 756                 default:
 757                     TRACE("_unknown_modifier(%#x)", modifier >> WINED3DSP_SRCMOD_SHIFT);
 758             }
 759         }
 760
 761         /**
 762         * swizzle bits fields:
 763         *  RRGGBBAA
 764         */
 765         if ((WINED3DVS_NOSWIZZLE >> WINED3DVS_SWIZZLE_SHIFT) != swizzle) {
 766             if (swizzle_r == swizzle_g &&
 767                 swizzle_r == swizzle_b &&
 768                 swizzle_r == swizzle_a) {
 769                     TRACE(".%c", swizzle_reg_chars[swizzle_r]);
 770             } else {
 771                 TRACE(".%c%c%c%c",
 772                 swizzle_reg_chars[swizzle_r],
 773                 swizzle_reg_chars[swizzle_g],
 774                 swizzle_reg_chars[swizzle_b],
 775                 swizzle_reg_chars[swizzle_a]);
 776             }
 777         }
 778     }
 779 }
 780
 781 /** Shared code in order to generate the bulk of the shader string.
 782     Use the shader_header_fct & shader_footer_fct to add strings
 783     that are specific to pixel or vertex functions
 784     NOTE: A description of how to parse tokens can be found on msdn */
 785 void shader_generate_main(
 786     IWineD3DBaseShader *iface,
 787     SHADER_BUFFER* buffer,
 788     shader_reg_maps* reg_maps,
 789     CONST DWORD* pFunction) {
 790
 791     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 792     IWineD3DDeviceImpl *device = (IWineD3DDeviceImpl *) This->baseShader.device; /* To access shader backend callbacks */
 793     const SHADER_HANDLER *handler_table = device->shader_backend->shader_instruction_handler_table;
 794     const DWORD *pToken = pFunction;
 795     const SHADER_OPCODE *curOpcode = NULL;
 796     SHADER_HANDLER hw_fct = NULL;
 797     DWORD i;
 798     SHADER_OPCODE_ARG hw_arg;
 799
 800     /* Initialize current parsing state */
 801     hw_arg.shader = iface;
 802     hw_arg.buffer = buffer;
 803     hw_arg.reg_maps = reg_maps;
 804     This->baseShader.parse_state.current_row = 0;
 805
 806     /* Second pass, process opcodes */
 807     if (NULL != pToken) {
 808         while (WINED3DPS_END() != *pToken) {
 809
 810             /* Skip version token */
 811             if (shader_is_version_token(*pToken)) {
 812                 ++pToken;
 813                 continue;
 814             }
 815
 816             /* Skip comment tokens */
 817             if (shader_is_comment(*pToken)) {
 818                 DWORD comment_len = (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 819                 ++pToken;
 820                 TRACE("#%s\n", (const char*)pToken);
 821                 pToken += comment_len;
 822                 continue;
 823             }
 824
 825             /* Read opcode */
 826             hw_arg.opcode_token = *pToken++;
 827             curOpcode = shader_get_opcode(iface, hw_arg.opcode_token);
 828
 829             /* Select handler */
 830             if (curOpcode == NULL)
 831                 hw_fct = NULL;
 832             else
 833                 hw_fct = handler_table[curOpcode->handler_idx];
 834
 835             /* Unknown opcode and its parameters */
 836             if (NULL == curOpcode) {
 837                 FIXME("Unrecognized opcode: token=0x%08x\n", hw_arg.opcode_token);
 838                 pToken += shader_skip_unrecognized(iface, pToken);
 839
 840             /* Nothing to do */
 841             } else if (WINED3DSIO_DCL == curOpcode->opcode ||
 842                        WINED3DSIO_NOP == curOpcode->opcode ||
 843                        WINED3DSIO_DEF == curOpcode->opcode ||
 844                        WINED3DSIO_DEFI == curOpcode->opcode ||
 845                        WINED3DSIO_DEFB == curOpcode->opcode ||
 846                        WINED3DSIO_PHASE == curOpcode->opcode ||
 847                        WINED3DSIO_RET == curOpcode->opcode) {
 848
 849                 pToken += shader_skip_opcode(This, curOpcode, hw_arg.opcode_token);
 850
 851             /* If a generator function is set for current shader target, use it */
 852             } else if (hw_fct != NULL) {
 853
 854                 hw_arg.opcode = curOpcode;
 855
 856                 /* Destination token */
 857                 if (curOpcode->dst_token) {
 858
 859                     DWORD param, addr_token = 0;
 860                     pToken += shader_get_param(iface, pToken, &param, &addr_token);
 861                     hw_arg.dst = param;
 862                     hw_arg.dst_addr = addr_token;
 863                 }
 864
 865                 /* Predication token */
 866                 if (hw_arg.opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED)
 867                     hw_arg.predicate = *pToken++;
 868
 869                 /* Other source tokens */
 870                 for (i = 0; i < (curOpcode->num_params - curOpcode->dst_token); i++) {
 871
 872                     DWORD param, addr_token = 0;
 873                     pToken += shader_get_param(iface, pToken, &param, &addr_token);
 874                     hw_arg.src[i] = param;
 875                     hw_arg.src_addr[i] = addr_token;
 876                 }
 877
 878                 /* Call appropriate function for output target */
 879                 hw_fct(&hw_arg);
 880
 881                 /* Add color correction if needed */
 882                 device->shader_backend->shader_color_correction(&hw_arg);
 883
 884                 /* Process instruction modifiers for GLSL apps ( _sat, etc. ) */
 885                 /* FIXME: This should be internal to the shader backend.
 886                  * Also, right now this is the only reason "shader_mode" exists. */
 887                 if (This->baseShader.shader_mode == SHADER_GLSL)
 888                     shader_glsl_add_instruction_modifiers(&hw_arg);
 889
 890             /* Unhandled opcode */
 891             } else {
 892
 893                 FIXME("Can't handle opcode %s in hwShader\n", curOpcode->name);
 894                 pToken += shader_skip_opcode(This, curOpcode, hw_arg.opcode_token);
 895             }
 896         }
 897         /* TODO: What about result.depth? */
 898
 899     }
 900 }
 901
 902 void shader_dump_ins_modifiers(const DWORD output) {
 903
 904     DWORD shift = (output & WINED3DSP_DSTSHIFT_MASK) >> WINED3DSP_DSTSHIFT_SHIFT;
 905     DWORD mmask = output & WINED3DSP_DSTMOD_MASK;
 906
 907     switch (shift) {
 908         case 0: break;
 909         case 13: TRACE("_d8"); break;
 910         case 14: TRACE("_d4"); break;
 911         case 15: TRACE("_d2"); break;
 912         case 1: TRACE("_x2"); break;
 913         case 2: TRACE("_x4"); break;
 914         case 3: TRACE("_x8"); break;
 915         default: TRACE("_unhandled_shift(%d)", shift); break;
 916     }
 917
 918     if (mmask & WINED3DSPDM_SATURATE)         TRACE("_sat");
 919     if (mmask & WINED3DSPDM_PARTIALPRECISION) TRACE("_pp");
 920     if (mmask & WINED3DSPDM_MSAMPCENTROID)    TRACE("_centroid");
 921
 922     mmask &= ~(WINED3DSPDM_SATURATE | WINED3DSPDM_PARTIALPRECISION | WINED3DSPDM_MSAMPCENTROID);
 923     if (mmask)
 924         FIXME("_unrecognized_modifier(%#x)", mmask >> WINED3DSP_DSTMOD_SHIFT);
 925 }
 926
 927 /* First pass: trace shader, initialize length and version */
 928 void shader_trace_init(
 929     IWineD3DBaseShader *iface,
 930     const DWORD* pFunction) {
 931
 932     IWineD3DBaseShaderImpl *This =(IWineD3DBaseShaderImpl *)iface;
 933
 934     const DWORD* pToken = pFunction;
 935     const SHADER_OPCODE* curOpcode = NULL;
 936     DWORD opcode_token;
 937     unsigned int len = 0;
 938     DWORD i;
 939
 940     TRACE("(%p) : Parsing programme\n", This);
 941
 942     if (NULL != pToken) {
 943         while (WINED3DVS_END() != *pToken) {
 944             if (shader_is_version_token(*pToken)) { /** version */
 945                 This->baseShader.hex_version = *pToken;
 946                 TRACE("%s_%u_%u\n", shader_is_pshader_version(This->baseShader.hex_version)? "ps": "vs",
 947                     WINED3DSHADER_VERSION_MAJOR(This->baseShader.hex_version),
 948                     WINED3DSHADER_VERSION_MINOR(This->baseShader.hex_version));
 949                 ++pToken;
 950                 ++len;
 951                 continue;
 952             }
 953             if (shader_is_comment(*pToken)) { /** comment */
 954                 DWORD comment_len = (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 955                 ++pToken;
 956                 TRACE("//%s\n", (const char*)pToken);
 957                 pToken += comment_len;
 958                 len += comment_len + 1;
 959                 continue;
 960             }
 961             opcode_token = *pToken++;
 962             curOpcode = shader_get_opcode(iface, opcode_token);
 963             len++;
 964
 965             if (NULL == curOpcode) {
 966                 int tokens_read;
 967                 FIXME("Unrecognized opcode: token=0x%08x\n", opcode_token);
 968                 tokens_read = shader_skip_unrecognized(iface, pToken);
 969                 pToken += tokens_read;
 970                 len += tokens_read;
 971
 972             } else {
 973                 if (curOpcode->opcode == WINED3DSIO_DCL) {
 974
 975                     DWORD usage = *pToken;
 976                     DWORD param = *(pToken + 1);
 977
 978                     shader_dump_decl_usage(This, usage, param);
 979                     shader_dump_ins_modifiers(param);
 980                     TRACE(" ");
 981                     shader_dump_param(iface, param, 0, 0);
 982                     pToken += 2;
 983                     len += 2;
 984
 985                 } else if (curOpcode->opcode == WINED3DSIO_DEF) {
 986
 987                         unsigned int offset = shader_get_float_offset(*pToken);
 988
 989                         TRACE("def c%u = %f, %f, %f, %f", offset,
 990                             *(const float *)(pToken + 1),
 991                             *(const float *)(pToken + 2),
 992                             *(const float *)(pToken + 3),
 993                             *(const float *)(pToken + 4));
 994
 995                         pToken += 5;
 996                         len += 5;
 997                 } else if (curOpcode->opcode == WINED3DSIO_DEFI) {
 998
 999                         TRACE("defi i%u = %d, %d, %d, %d", *pToken & WINED3DSP_REGNUM_MASK,
1000                             *(pToken + 1),
1001                             *(pToken + 2),
1002                             *(pToken + 3),
1003                             *(pToken + 4));
1004
1005                         pToken += 5;
1006                         len += 5;
1007
1008                 } else if (curOpcode->opcode == WINED3DSIO_DEFB) {
1009
1010                         TRACE("defb b%u = %s", *pToken & WINED3DSP_REGNUM_MASK,
1011                             *(pToken + 1)? "true": "false");
1012
1013                         pToken += 2;
1014                         len += 2;
1015
1016                 } else {
1017
1018                     DWORD param, addr_token;
1019                     int tokens_read;
1020
1021                     /* Print out predication source token first - it follows
1022                      * the destination token. */
1023                     if (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED) {
1024                         TRACE("(");
1025                         shader_dump_param(iface, *(pToken + 2), 0, 1);
1026                         TRACE(") ");
1027                     }
1028                     if (opcode_token & WINED3DSI_COISSUE) {
1029                         /* PixWin marks instructions with the coissue flag with a '+' */
1030                         TRACE("+");
1031                     }
1032
1033                     TRACE("%s", curOpcode->name);
1034
1035                     if (curOpcode->opcode == WINED3DSIO_IFC ||
1036                         curOpcode->opcode == WINED3DSIO_BREAKC) {
1037
1038                         DWORD op = (opcode_token & INST_CONTROLS_MASK) >> INST_CONTROLS_SHIFT;
1039                         switch (op) {
1040                             case COMPARISON_GT: TRACE("_gt"); break;
1041                             case COMPARISON_EQ: TRACE("_eq"); break;
1042                             case COMPARISON_GE: TRACE("_ge"); break;
1043                             case COMPARISON_LT: TRACE("_lt"); break;
1044                             case COMPARISON_NE: TRACE("_ne"); break;
1045                             case COMPARISON_LE: TRACE("_le"); break;
1046                             default:
1047                                 TRACE("_(%u)", op);
1048                         }
1049                     } else if (curOpcode->opcode == WINED3DSIO_TEX &&
1050                                This->baseShader.hex_version >= WINED3DPS_VERSION(2,0)) {
1051                         if(opcode_token & WINED3DSI_TEXLD_PROJECT) TRACE("p");
1052                     }
1053
1054                     /* Destination token */
1055                     if (curOpcode->dst_token) {
1056
1057                         /* Destination token */
1058                         tokens_read = shader_get_param(iface, pToken, &param, &addr_token);
1059                         pToken += tokens_read;
1060                         len += tokens_read;
1061
1062                         shader_dump_ins_modifiers(param);
1063                         TRACE(" ");
1064                         shader_dump_param(iface, param, addr_token, 0);
1065                     }
1066
1067                     /* Predication token - already printed out, just skip it */
1068                     if (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED) {
1069                         pToken++;
1070                         len++;
1071                     }
1072
1073                     /* Other source tokens */
1074                     for (i = curOpcode->dst_token; i < curOpcode->num_params; ++i) {
1075
1076                         tokens_read = shader_get_param(iface, pToken, &param, &addr_token);
1077                         pToken += tokens_read;
1078                         len += tokens_read;
1079
1080                         TRACE((i == 0)? " " : ", ");
1081                         shader_dump_param(iface, param, addr_token, 1);
1082                     }
1083                 }
1084                 TRACE("\n");
1085             }
1086         }
1087         This->baseShader.functionLength = (len + 1) * sizeof(DWORD);
1088     } else {
1089         This->baseShader.functionLength = 1; /* no Function defined use fixed function vertex processing */
1090     }
1091 }
1092
1093 static const SHADER_HANDLER shader_none_instruction_handler_table[WINED3DSIH_TABLE_SIZE] = {0};
1094 static void shader_none_select(IWineD3DDevice *iface, BOOL usePS, BOOL useVS) {}
1095 static void shader_none_select_depth_blt(IWineD3DDevice *iface, enum tex_types tex_type) {}
1096 static void shader_none_deselect_depth_blt(IWineD3DDevice *iface) {}
1097 static void shader_none_load_constants(IWineD3DDevice *iface, char usePS, char useVS) {}
1098 static void shader_none_cleanup(IWineD3DDevice *iface) {}
1099 static void shader_none_color_correction(SHADER_OPCODE_ARG* arg) {}
1100 static void shader_none_destroy(IWineD3DBaseShader *iface) {}
1101 static HRESULT shader_none_alloc(IWineD3DDevice *iface) {return WINED3D_OK;}
1102 static void shader_none_free(IWineD3DDevice *iface) {}
1103 static BOOL shader_none_dirty_const(IWineD3DDevice *iface) {return FALSE;}
1104 static void shader_none_generate_pshader(IWineD3DPixelShader *iface, SHADER_BUFFER *buffer) {
1105     FIXME("NONE shader backend asked to generate a pixel shader\n");
1106 }
1107 static void shader_none_generate_vshader(IWineD3DVertexShader *iface, SHADER_BUFFER *buffer) {
1108     FIXME("NONE shader backend asked to generate a vertex shader\n");
1109 }
1110
1111 #define GLINFO_LOCATION      (*gl_info)
1112 static void shader_none_get_caps(WINED3DDEVTYPE devtype, WineD3D_GL_Info *gl_info, struct shader_caps *pCaps) {
1113     /* Set the shader caps to 0 for the none shader backend */
1114     pCaps->VertexShaderVersion  = 0;
1115     pCaps->PixelShaderVersion    = 0;
1116     pCaps->PixelShader1xMaxValue = 0.0;
1117 }
1118 #undef GLINFO_LOCATION
1119 static BOOL shader_none_conv_supported(WINED3DFORMAT fmt) {
1120     TRACE("Checking shader format support for format %s", debug_d3dformat(fmt));
1121     switch(fmt) {
1122         /* Faked to make some apps happy. */
1123         case WINED3DFMT_V8U8:
1124         case WINED3DFMT_V16U16:
1125         case WINED3DFMT_L6V5U5:
1126         case WINED3DFMT_X8L8V8U8:
1127         case WINED3DFMT_Q8W8V8U8:
1128             TRACE("[OK]\n");
1129             return TRUE;
1130         default:
1131             TRACE("[FAILED]\n");
1132             return FALSE;
1133     }
1134 }
1135
1136 const shader_backend_t none_shader_backend = {
1137     shader_none_instruction_handler_table,
1138     shader_none_select,
1139     shader_none_select_depth_blt,
1140     shader_none_deselect_depth_blt,
1141     shader_none_load_constants,
1142     shader_none_cleanup,
1143     shader_none_color_correction,
1144     shader_none_destroy,
1145     shader_none_alloc,
1146     shader_none_free,
1147     shader_none_dirty_const,
1148     shader_none_generate_pshader,
1149     shader_none_generate_vshader,
1150     shader_none_get_caps,
1151     shader_none_conv_supported
1152 };
1153
1154 /* *******************************************
1155    IWineD3DPixelShader IUnknown parts follow
1156    ******************************************* */
1157 HRESULT  WINAPI IWineD3DBaseShaderImpl_QueryInterface(IWineD3DBaseShader *iface, REFIID riid, LPVOID *ppobj)
1158 {
1159     IWineD3DBaseShaderImpl *This = (IWineD3DBaseShaderImpl *)iface;
1160     TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
1161     if (IsEqualGUID(riid, &IID_IUnknown)
1162         || IsEqualGUID(riid, &IID_IWineD3DBase)
1163         || IsEqualGUID(riid, &IID_IWineD3DBaseShader)
1164         || IsEqualGUID(riid, &IID_IWineD3DPixelShader)) {
1165         IUnknown_AddRef(iface);
1166         *ppobj = This;
1167         return S_OK;
1168     }
1169     *ppobj = NULL;
1170     return E_NOINTERFACE;
1171 }
1172
1173 ULONG  WINAPI IWineD3DBaseShaderImpl_AddRef(IWineD3DBaseShader *iface) {
1174     IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
1175     TRACE("(%p) : AddRef increasing from %d\n", This, This->baseShader.ref);
1176     return InterlockedIncrement(&This->baseShader.ref);
1177 }
1178
1179 ULONG  WINAPI IWineD3DBaseShaderImpl_Release(IWineD3DBaseShader *iface) {
1180     IWineD3DBaseShaderImpl *This = (IWineD3DBaseShaderImpl *)iface;
1181     IWineD3DDeviceImpl *deviceImpl = (IWineD3DDeviceImpl *) This->baseShader.device;
1182     ULONG ref;
1183     TRACE("(%p) : Releasing from %d\n", This, This->baseShader.ref);
1184     ref = InterlockedDecrement(&This->baseShader.ref);
1185     if (ref == 0) {
1186         deviceImpl->shader_backend->shader_destroy(iface);
1187         HeapFree(GetProcessHeap(), 0, This->baseShader.function);
1188         shader_delete_constant_list(&This->baseShader.constantsF);
1189         shader_delete_constant_list(&This->baseShader.constantsB);
1190         shader_delete_constant_list(&This->baseShader.constantsI);
1191         list_remove(&This->baseShader.shader_list_entry);
1192         HeapFree(GetProcessHeap(), 0, This);
1193     }
1194     return ref;
1195 }