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 WINE_DECLARE_DEBUG_CHANNEL(d3d);
  33
  34 static void shader_dump_param(const DWORD param, const DWORD addr_token, int input, DWORD shader_version);
  35
  36 static inline BOOL shader_is_version_token(DWORD token) {
  37     return shader_is_pshader_version(token) ||
  38            shader_is_vshader_version(token);
  39 }
  40
  41 void shader_buffer_init(struct SHADER_BUFFER *buffer)
  42 {
  43     buffer->buffer = HeapAlloc(GetProcessHeap(), 0, SHADER_PGMSIZE);
  44     buffer->buffer[0] = '\0';
  45     buffer->bsize = 0;
  46     buffer->lineNo = 0;
  47     buffer->newline = TRUE;
  48 }
  49
  50 void shader_buffer_free(struct SHADER_BUFFER *buffer)
  51 {
  52     HeapFree(GetProcessHeap(), 0, buffer->buffer);
  53 }
  54
  55 int shader_vaddline(SHADER_BUFFER* buffer, const char *format, va_list args)
  56 {
  57     char* base = buffer->buffer + buffer->bsize;
  58     int rc;
  59
  60     rc = vsnprintf(base, SHADER_PGMSIZE - 1 - buffer->bsize, format, args);
  61
  62     if (rc < 0 ||                                   /* C89 */
  63         rc > SHADER_PGMSIZE - 1 - buffer->bsize) {  /* C99 */
  64
  65         ERR("The buffer allocated for the shader program string "
  66             "is too small at %d bytes.\n", SHADER_PGMSIZE);
  67         buffer->bsize = SHADER_PGMSIZE - 1;
  68         return -1;
  69     }
  70
  71     if (buffer->newline) {
  72         TRACE("GL HW (%u, %u) : %s", buffer->lineNo + 1, buffer->bsize, base);
  73         buffer->newline = FALSE;
  74     } else {
  75         TRACE("%s", base);
  76     }
  77
  78     buffer->bsize += rc;
  79     if (buffer->buffer[buffer->bsize-1] == '\n') {
  80         buffer->lineNo++;
  81         buffer->newline = TRUE;
  82     }
  83     return 0;
  84 }
  85
  86 int shader_addline(SHADER_BUFFER* buffer, const char *format, ...)
  87 {
  88     int ret;
  89     va_list args;
  90
  91     va_start(args, format);
  92     ret = shader_vaddline(buffer, format, args);
  93     va_end(args);
  94
  95     return ret;
  96 }
  97
  98 void shader_init(struct IWineD3DBaseShaderClass *shader,
  99         IWineD3DDevice *device, const SHADER_OPCODE *instruction_table)
 100 {
 101     shader->ref = 1;
 102     shader->device = device;
 103     shader->shader_ins = instruction_table;
 104     list_init(&shader->linked_programs);
 105 }
 106
 107 const SHADER_OPCODE *shader_get_opcode(const SHADER_OPCODE *opcode_table, DWORD shader_version, DWORD code)
 108 {
 109     DWORD i = 0;
 110
 111     /** TODO: use dichotomic search */
 112     while (opcode_table[i].name)
 113     {
 114         if ((code & WINED3DSI_OPCODE_MASK) == opcode_table[i].opcode
 115                 && shader_version >= opcode_table[i].min_version
 116                 && (!opcode_table[i].max_version || shader_version <= opcode_table[i].max_version))
 117         {
 118             return &opcode_table[i];
 119         }
 120         ++i;
 121     }
 122
 123     FIXME("Unsupported opcode %#x(%d) masked %#x, shader version %#x\n",
 124             code, code, code & WINED3DSI_OPCODE_MASK, shader_version);
 125
 126     return NULL;
 127 }
 128
 129 /* Read a parameter opcode from the input stream,
 130  * and possibly a relative addressing token.
 131  * Return the number of tokens read */
 132 static int shader_get_param(const DWORD *pToken, DWORD shader_version, DWORD *param, DWORD *addr_token)
 133 {
 134     /* PS >= 3.0 have relative addressing (with token)
 135      * VS >= 2.0 have relative addressing (with token)
 136      * VS >= 1.0 < 2.0 have relative addressing (without token)
 137      * The version check below should work in general */
 138
 139     char rel_token = WINED3DSHADER_VERSION_MAJOR(shader_version) >= 2 &&
 140         ((*pToken & WINED3DSHADER_ADDRESSMODE_MASK) == WINED3DSHADER_ADDRMODE_RELATIVE);
 141
 142     *param = *pToken;
 143     *addr_token = rel_token? *(pToken + 1): 0;
 144     return rel_token? 2:1;
 145 }
 146
 147 /* Return the number of parameters to skip for an opcode */
 148 static inline int shader_skip_opcode(const SHADER_OPCODE *curOpcode, DWORD opcode_token, DWORD shader_version)
 149 {
 150    /* Shaders >= 2.0 may contain address tokens, but fortunately they
 151     * have a useful length mask - use it here. Shaders 1.0 contain no such tokens */
 152     return (WINED3DSHADER_VERSION_MAJOR(shader_version) >= 2)
 153             ? ((opcode_token & WINED3DSI_INSTLENGTH_MASK) >> WINED3DSI_INSTLENGTH_SHIFT) : curOpcode->num_params;
 154 }
 155
 156 /* Read the parameters of an unrecognized opcode from the input stream
 157  * Return the number of tokens read.
 158  *
 159  * Note: This function assumes source or destination token format.
 160  * It will not work with specially-formatted tokens like DEF or DCL,
 161  * but hopefully those would be recognized */
 162 static int shader_skip_unrecognized(const DWORD *pToken, DWORD shader_version)
 163 {
 164     int tokens_read = 0;
 165     int i = 0;
 166
 167     /* TODO: Think of a good name for 0x80000000 and replace it with a constant */
 168     while (*pToken & 0x80000000) {
 169
 170         DWORD param, addr_token;
 171         tokens_read += shader_get_param(pToken, shader_version, &param, &addr_token);
 172         pToken += tokens_read;
 173
 174         FIXME("Unrecognized opcode param: token=0x%08x "
 175             "addr_token=0x%08x name=", param, addr_token);
 176         shader_dump_param(param, addr_token, i, shader_version);
 177         FIXME("\n");
 178         ++i;
 179     }
 180     return tokens_read;
 181 }
 182
 183 /* Convert floating point offset relative
 184  * to a register file to an absolute offset for float constants */
 185 static unsigned int shader_get_float_offset(const DWORD reg)
 186 {
 187      unsigned int regnum = reg & WINED3DSP_REGNUM_MASK;
 188      int regtype = shader_get_regtype(reg);
 189
 190      switch (regtype) {
 191         case WINED3DSPR_CONST: return regnum;
 192         case WINED3DSPR_CONST2: return 2048 + regnum;
 193         case WINED3DSPR_CONST3: return 4096 + regnum;
 194         case WINED3DSPR_CONST4: return 6144 + regnum;
 195         default:
 196             FIXME("Unsupported register type: %d\n", regtype);
 197             return regnum;
 198      }
 199 }
 200
 201 static void shader_delete_constant_list(struct list* clist) {
 202
 203     struct list *ptr;
 204     struct local_constant* constant;
 205
 206     ptr = list_head(clist);
 207     while (ptr) {
 208         constant = LIST_ENTRY(ptr, struct local_constant, entry);
 209         ptr = list_next(clist, ptr);
 210         HeapFree(GetProcessHeap(), 0, constant);
 211     }
 212     list_init(clist);
 213 }
 214
 215 static void shader_parse_dst_param(DWORD param, DWORD addr_param, struct wined3d_shader_dst_param *dst)
 216 {
 217     dst->register_type = ((param & WINED3DSP_REGTYPE_MASK) >> WINED3DSP_REGTYPE_SHIFT)
 218             | ((param & WINED3DSP_REGTYPE_MASK2) >> WINED3DSP_REGTYPE_SHIFT2);
 219     dst->register_idx = param & WINED3DSP_REGNUM_MASK;
 220     dst->write_mask = param & WINED3DSP_WRITEMASK_ALL;
 221     dst->modifiers = param & WINED3DSP_DSTMOD_MASK;
 222     dst->token = param;
 223     dst->addr_token = addr_param;
 224 }
 225
 226 /* Note that this does not count the loop register
 227  * as an address register. */
 228
 229 HRESULT shader_get_registers_used(IWineD3DBaseShader *iface, struct shader_reg_maps *reg_maps,
 230         struct wined3d_shader_semantic *semantics_in, struct wined3d_shader_semantic *semantics_out,
 231         const DWORD *byte_code)
 232 {
 233     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 234     const SHADER_OPCODE *shader_ins = This->baseShader.shader_ins;
 235     DWORD shader_version;
 236     unsigned int cur_loop_depth = 0, max_loop_depth = 0;
 237     const DWORD* pToken = byte_code;
 238     char pshader;
 239
 240     /* There are some minor differences between pixel and vertex shaders */
 241
 242     memset(reg_maps->bumpmat, 0, sizeof(reg_maps->bumpmat));
 243     memset(reg_maps->luminanceparams, 0, sizeof(reg_maps->luminanceparams));
 244
 245     /* get_registers_used is called on every compile on some 1.x shaders, which can result
 246      * in stacking up a collection of local constants. Delete the old constants if existing
 247      */
 248     shader_delete_constant_list(&This->baseShader.constantsF);
 249     shader_delete_constant_list(&This->baseShader.constantsB);
 250     shader_delete_constant_list(&This->baseShader.constantsI);
 251
 252     /* The version token is supposed to be the first token */
 253     if (!shader_is_version_token(*pToken))
 254     {
 255         FIXME("First token is not a version token, invalid shader.\n");
 256         return WINED3DERR_INVALIDCALL;
 257     }
 258     reg_maps->shader_version = shader_version = *pToken++;
 259     pshader = shader_is_pshader_version(shader_version);
 260
 261     while (WINED3DVS_END() != *pToken) {
 262         CONST SHADER_OPCODE* curOpcode;
 263         DWORD opcode_token;
 264
 265         /* Skip comments */
 266         if (shader_is_comment(*pToken))
 267         {
 268              DWORD comment_len = (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 269              ++pToken;
 270              pToken += comment_len;
 271              continue;
 272         }
 273
 274         /* Fetch opcode */
 275         opcode_token = *pToken++;
 276         curOpcode = shader_get_opcode(shader_ins, shader_version, opcode_token);
 277
 278         /* Unhandled opcode, and its parameters */
 279         if (NULL == curOpcode) {
 280            while (*pToken & 0x80000000)
 281                ++pToken;
 282
 283         /* Handle declarations */
 284         } else if (WINED3DSIO_DCL == curOpcode->opcode) {
 285
 286             DWORD usage = *pToken++;
 287             DWORD param = *pToken++;
 288             DWORD regtype = shader_get_regtype(param);
 289             unsigned int regnum = param & WINED3DSP_REGNUM_MASK;
 290
 291             /* Vshader: mark attributes used
 292                Pshader: mark 3.0 input registers used, save token */
 293             if (WINED3DSPR_INPUT == regtype) {
 294
 295                 if (!pshader)
 296                     reg_maps->attributes[regnum] = 1;
 297                 else
 298                     reg_maps->packed_input[regnum] = 1;
 299
 300                 semantics_in[regnum].usage = (usage & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
 301                 semantics_in[regnum].usage_idx =
 302                         (usage & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
 303                 shader_parse_dst_param(param, 0, &semantics_in[regnum].reg);
 304
 305             /* Vshader: mark 3.0 output registers used, save token */
 306             } else if (WINED3DSPR_OUTPUT == regtype) {
 307                 reg_maps->packed_output[regnum] = 1;
 308                 semantics_out[regnum].usage = (usage & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
 309                 semantics_out[regnum].usage_idx =
 310                         (usage & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
 311                 shader_parse_dst_param(param, 0, &semantics_out[regnum].reg);
 312
 313                 if (usage & (WINED3DDECLUSAGE_FOG << WINED3DSP_DCL_USAGE_SHIFT))
 314                     reg_maps->fog = 1;
 315
 316             /* Save sampler usage token */
 317             } else if (WINED3DSPR_SAMPLER == regtype)
 318                 reg_maps->samplers[regnum] = usage;
 319
 320         } else if (WINED3DSIO_DEF == curOpcode->opcode) {
 321
 322             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 323             if (!lconst) return E_OUTOFMEMORY;
 324             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 325             memcpy(lconst->value, pToken + 1, 4 * sizeof(DWORD));
 326
 327             /* In pixel shader 1.X shaders, the constants are clamped between [-1;1] */
 328             if (WINED3DSHADER_VERSION_MAJOR(shader_version) == 1 && pshader)
 329             {
 330                 float *value = (float *) lconst->value;
 331                 if(value[0] < -1.0) value[0] = -1.0;
 332                 else if(value[0] >  1.0) value[0] =  1.0;
 333                 if(value[1] < -1.0) value[1] = -1.0;
 334                 else if(value[1] >  1.0) value[1] =  1.0;
 335                 if(value[2] < -1.0) value[2] = -1.0;
 336                 else if(value[2] >  1.0) value[2] =  1.0;
 337                 if(value[3] < -1.0) value[3] = -1.0;
 338                 else if(value[3] >  1.0) value[3] =  1.0;
 339             }
 340
 341             list_add_head(&This->baseShader.constantsF, &lconst->entry);
 342             pToken += curOpcode->num_params;
 343
 344         } else if (WINED3DSIO_DEFI == curOpcode->opcode) {
 345
 346             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 347             if (!lconst) return E_OUTOFMEMORY;
 348             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 349             memcpy(lconst->value, pToken + 1, 4 * sizeof(DWORD));
 350             list_add_head(&This->baseShader.constantsI, &lconst->entry);
 351             pToken += curOpcode->num_params;
 352
 353         } else if (WINED3DSIO_DEFB == curOpcode->opcode) {
 354
 355             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 356             if (!lconst) return E_OUTOFMEMORY;
 357             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 358             memcpy(lconst->value, pToken + 1, 1 * sizeof(DWORD));
 359             list_add_head(&This->baseShader.constantsB, &lconst->entry);
 360             pToken += curOpcode->num_params;
 361
 362         /* If there's a loop in the shader */
 363         } else if (WINED3DSIO_LOOP == curOpcode->opcode ||
 364                    WINED3DSIO_REP == curOpcode->opcode) {
 365             cur_loop_depth++;
 366             if(cur_loop_depth > max_loop_depth)
 367                 max_loop_depth = cur_loop_depth;
 368             pToken += curOpcode->num_params;
 369
 370             /* Rep and Loop always use an integer constant for the control parameters */
 371             This->baseShader.uses_int_consts = TRUE;
 372         } else if (WINED3DSIO_ENDLOOP == curOpcode->opcode ||
 373                    WINED3DSIO_ENDREP == curOpcode->opcode) {
 374             cur_loop_depth--;
 375
 376         /* For subroutine prototypes */
 377         } else if (WINED3DSIO_LABEL == curOpcode->opcode) {
 378
 379             DWORD snum = *pToken & WINED3DSP_REGNUM_MASK;
 380             reg_maps->labels[snum] = 1;
 381             pToken += curOpcode->num_params;
 382
 383         /* Set texture, address, temporary registers */
 384         } else {
 385             int i, limit;
 386
 387             /* Declare 1.X samplers implicitly, based on the destination reg. number */
 388             if (WINED3DSHADER_VERSION_MAJOR(shader_version) == 1
 389                     && pshader /* Filter different instructions with the same enum values in VS */
 390                     && (WINED3DSIO_TEX == curOpcode->opcode
 391                         || WINED3DSIO_TEXBEM == curOpcode->opcode
 392                         || WINED3DSIO_TEXBEML == curOpcode->opcode
 393                         || WINED3DSIO_TEXDP3TEX == curOpcode->opcode
 394                         || WINED3DSIO_TEXM3x2TEX == curOpcode->opcode
 395                         || WINED3DSIO_TEXM3x3SPEC == curOpcode->opcode
 396                         || WINED3DSIO_TEXM3x3TEX == curOpcode->opcode
 397                         || WINED3DSIO_TEXM3x3VSPEC == curOpcode->opcode
 398                         || WINED3DSIO_TEXREG2AR == curOpcode->opcode
 399                         || WINED3DSIO_TEXREG2GB == curOpcode->opcode
 400                         || WINED3DSIO_TEXREG2RGB == curOpcode->opcode))
 401             {
 402                 /* Fake sampler usage, only set reserved bit and ttype */
 403                 DWORD sampler_code = *pToken & WINED3DSP_REGNUM_MASK;
 404
 405                 TRACE("Setting fake 2D sampler for 1.x pixelshader\n");
 406                 reg_maps->samplers[sampler_code] = (0x1 << 31) | WINED3DSTT_2D;
 407
 408                 /* texbem is only valid with < 1.4 pixel shaders */
 409                 if(WINED3DSIO_TEXBEM  == curOpcode->opcode ||
 410                     WINED3DSIO_TEXBEML == curOpcode->opcode) {
 411                     reg_maps->bumpmat[sampler_code] = TRUE;
 412                     if(WINED3DSIO_TEXBEML == curOpcode->opcode) {
 413                         reg_maps->luminanceparams[sampler_code] = TRUE;
 414                     }
 415                 }
 416             }
 417             if(WINED3DSIO_NRM  == curOpcode->opcode) {
 418                 reg_maps->usesnrm = 1;
 419             } else if(WINED3DSIO_BEM == curOpcode->opcode && pshader) {
 420                 DWORD regnum = *pToken & WINED3DSP_REGNUM_MASK;
 421                 reg_maps->bumpmat[regnum] = TRUE;
 422             } else if(WINED3DSIO_DSY  == curOpcode->opcode) {
 423                 reg_maps->usesdsy = 1;
 424             }
 425
 426             /* This will loop over all the registers and try to
 427              * make a bitmask of the ones we're interested in.
 428              *
 429              * Relative addressing tokens are ignored, but that's
 430              * okay, since we'll catch any address registers when
 431              * they are initialized (required by spec) */
 432
 433             limit = (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED)?
 434                 curOpcode->num_params + 1: curOpcode->num_params;
 435
 436             for (i = 0; i < limit; ++i) {
 437
 438                 DWORD param, addr_token, reg, regtype;
 439                 pToken += shader_get_param(pToken, shader_version, &param, &addr_token);
 440
 441                 regtype = shader_get_regtype(param);
 442                 reg = param & WINED3DSP_REGNUM_MASK;
 443
 444                 if (WINED3DSPR_TEXTURE == regtype) { /* vs: WINED3DSPR_ADDR */
 445
 446                     if (pshader)
 447                         reg_maps->texcoord[reg] = 1;
 448                     else
 449                         reg_maps->address[reg] = 1;
 450                 }
 451
 452                 else if (WINED3DSPR_TEMP == regtype)
 453                     reg_maps->temporary[reg] = 1;
 454
 455                 else if (WINED3DSPR_INPUT == regtype) {
 456                     if( !pshader)
 457                         reg_maps->attributes[reg] = 1;
 458                     else {
 459                         if(param & WINED3DSHADER_ADDRMODE_RELATIVE) {
 460                             /* If relative addressing is used, we must assume that all registers
 461                              * are used. Even if it is a construct like v3[aL], we can't assume
 462                              * that v0, v1 and v2 aren't read because aL can be negative
 463                              */
 464                             unsigned int i;
 465                             for(i = 0; i < MAX_REG_INPUT; i++) {
 466                                 ((IWineD3DPixelShaderImpl *) This)->input_reg_used[i] = TRUE;
 467                             }
 468                         } else {
 469                             ((IWineD3DPixelShaderImpl *) This)->input_reg_used[reg] = TRUE;
 470                         }
 471                     }
 472                 }
 473
 474                 else if (WINED3DSPR_RASTOUT == regtype && reg == 1)
 475                     reg_maps->fog = 1;
 476
 477                 else if (WINED3DSPR_MISCTYPE == regtype && reg == 0 && pshader)
 478                     reg_maps->vpos = 1;
 479
 480                 else if(WINED3DSPR_CONST == regtype) {
 481                     if(param & WINED3DSHADER_ADDRMODE_RELATIVE) {
 482                         if(!pshader) {
 483                             if(reg <= ((IWineD3DVertexShaderImpl *) This)->min_rel_offset) {
 484                                 ((IWineD3DVertexShaderImpl *) This)->min_rel_offset = reg;
 485                             } else if(reg >= ((IWineD3DVertexShaderImpl *) This)->max_rel_offset) {
 486                                 ((IWineD3DVertexShaderImpl *) This)->max_rel_offset = reg;
 487                             }
 488                         }
 489                         reg_maps->usesrelconstF = TRUE;
 490                     }
 491                 }
 492                 else if(WINED3DSPR_CONSTINT == regtype) {
 493                     This->baseShader.uses_int_consts = TRUE;
 494                 }
 495                 else if(WINED3DSPR_CONSTBOOL == regtype) {
 496                     This->baseShader.uses_bool_consts = TRUE;
 497                 }
 498
 499                 /* WINED3DSPR_TEXCRDOUT is the same as WINED3DSPR_OUTPUT. _OUTPUT can be > MAX_REG_TEXCRD and is used
 500                  * in >= 3.0 shaders. Filter 3.0 shaders to prevent overflows, and also filter pixel shaders because TECRDOUT
 501                  * isn't used in them, but future register types might cause issues
 502                  */
 503                 else if (WINED3DSPR_TEXCRDOUT == regtype && i == 0 /* Only look at writes */
 504                         && !pshader && WINED3DSHADER_VERSION_MAJOR(shader_version) < 3)
 505                 {
 506                     reg_maps->texcoord_mask[reg] |= shader_get_writemask(param);
 507                 }
 508             }
 509         }
 510     }
 511     ++pToken;
 512     reg_maps->loop_depth = max_loop_depth;
 513
 514     This->baseShader.functionLength = ((char *)pToken - (char *)byte_code);
 515
 516     return WINED3D_OK;
 517 }
 518
 519 static void shader_dump_decl_usage(DWORD decl, DWORD param, DWORD shader_version)
 520 {
 521     DWORD regtype = shader_get_regtype(param);
 522
 523     TRACE("dcl");
 524
 525     if (regtype == WINED3DSPR_SAMPLER) {
 526         DWORD ttype = decl & WINED3DSP_TEXTURETYPE_MASK;
 527
 528         switch (ttype) {
 529             case WINED3DSTT_2D: TRACE("_2d"); break;
 530             case WINED3DSTT_CUBE: TRACE("_cube"); break;
 531             case WINED3DSTT_VOLUME: TRACE("_volume"); break;
 532             default: TRACE("_unknown_ttype(0x%08x)", ttype);
 533        }
 534
 535     } else {
 536
 537         DWORD usage = decl & WINED3DSP_DCL_USAGE_MASK;
 538         DWORD idx = (decl & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
 539
 540         /* Pixel shaders 3.0 don't have usage semantics */
 541         if (shader_is_pshader_version(shader_version) && shader_version < WINED3DPS_VERSION(3,0))
 542             return;
 543         else
 544             TRACE("_");
 545
 546         switch(usage) {
 547         case WINED3DDECLUSAGE_POSITION:
 548             TRACE("position%d", idx);
 549             break;
 550         case WINED3DDECLUSAGE_BLENDINDICES:
 551             TRACE("blend");
 552             break;
 553         case WINED3DDECLUSAGE_BLENDWEIGHT:
 554             TRACE("weight");
 555             break;
 556         case WINED3DDECLUSAGE_NORMAL:
 557             TRACE("normal%d", idx);
 558             break;
 559         case WINED3DDECLUSAGE_PSIZE:
 560             TRACE("psize");
 561             break;
 562         case WINED3DDECLUSAGE_COLOR:
 563             if(idx == 0)  {
 564                 TRACE("color");
 565             } else {
 566                 TRACE("specular%d", (idx - 1));
 567             }
 568             break;
 569         case WINED3DDECLUSAGE_TEXCOORD:
 570             TRACE("texture%d", idx);
 571             break;
 572         case WINED3DDECLUSAGE_TANGENT:
 573             TRACE("tangent");
 574             break;
 575         case WINED3DDECLUSAGE_BINORMAL:
 576             TRACE("binormal");
 577             break;
 578         case WINED3DDECLUSAGE_TESSFACTOR:
 579             TRACE("tessfactor");
 580             break;
 581         case WINED3DDECLUSAGE_POSITIONT:
 582             TRACE("positionT%d", idx);
 583             break;
 584         case WINED3DDECLUSAGE_FOG:
 585             TRACE("fog");
 586             break;
 587         case WINED3DDECLUSAGE_DEPTH:
 588             TRACE("depth");
 589             break;
 590         case WINED3DDECLUSAGE_SAMPLE:
 591             TRACE("sample");
 592             break;
 593         default:
 594             FIXME("unknown_semantics(0x%08x)", usage);
 595         }
 596     }
 597 }
 598
 599 static void shader_dump_arr_entry(const DWORD param, const DWORD addr_token,
 600         unsigned int reg, int input, DWORD shader_version)
 601 {
 602     char relative =
 603         ((param & WINED3DSHADER_ADDRESSMODE_MASK) == WINED3DSHADER_ADDRMODE_RELATIVE);
 604
 605     if (relative) {
 606         TRACE("[");
 607         if (addr_token)
 608             shader_dump_param(addr_token, 0, input, shader_version);
 609         else
 610             TRACE("a0.x");
 611         TRACE(" + ");
 612      }
 613      TRACE("%u", reg);
 614      if (relative)
 615          TRACE("]");
 616 }
 617
 618 static void shader_dump_param(const DWORD param, const DWORD addr_token, int input, DWORD shader_version)
 619 {
 620     static const char * const rastout_reg_names[] = { "oPos", "oFog", "oPts" };
 621     static const char * const misctype_reg_names[] = { "vPos", "vFace"};
 622     const char *swizzle_reg_chars = "xyzw";
 623
 624     DWORD reg = param & WINED3DSP_REGNUM_MASK;
 625     DWORD regtype = shader_get_regtype(param);
 626     DWORD modifier = param & WINED3DSP_SRCMOD_MASK;
 627
 628     /* There are some minor differences between pixel and vertex shaders */
 629     char pshader = shader_is_pshader_version(shader_version);
 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(param, addr_token, reg, input, shader_version);
 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(param, addr_token, shader_get_float_offset(param), input, shader_version);
 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(shader_version) >= 3) {
 683                 TRACE("o");
 684                 shader_dump_arr_entry(param, addr_token, reg, input, shader_version);
 685             }
 686             else
 687                TRACE("oT%u", reg);
 688             break;
 689         case WINED3DSPR_CONSTINT:
 690             TRACE("i");
 691             shader_dump_arr_entry(param, addr_token, reg, input, shader_version);
 692             break;
 693         case WINED3DSPR_CONSTBOOL:
 694             TRACE("b");
 695             shader_dump_arr_entry(param, addr_token, reg, input, shader_version);
 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_x = swizzle & 0x03;
 736         DWORD swizzle_y = (swizzle >> 2) & 0x03;
 737         DWORD swizzle_z = (swizzle >> 4) & 0x03;
 738         DWORD swizzle_w = (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_x == swizzle_y &&
 767                 swizzle_x == swizzle_z &&
 768                 swizzle_x == swizzle_w) {
 769                     TRACE(".%c", swizzle_reg_chars[swizzle_x]);
 770             } else {
 771                 TRACE(".%c%c%c%c",
 772                 swizzle_reg_chars[swizzle_x],
 773                 swizzle_reg_chars[swizzle_y],
 774                 swizzle_reg_chars[swizzle_z],
 775                 swizzle_reg_chars[swizzle_w]);
 776             }
 777         }
 778     }
 779 }
 780
 781 /* Shared code in order to generate the bulk of the shader string.
 782  * NOTE: A description of how to parse tokens can be found on msdn */
 783 void shader_generate_main(IWineD3DBaseShader *iface, SHADER_BUFFER* buffer,
 784         const shader_reg_maps* reg_maps, CONST DWORD* pFunction)
 785 {
 786     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 787     IWineD3DDeviceImpl *device = (IWineD3DDeviceImpl *) This->baseShader.device; /* To access shader backend callbacks */
 788     const SHADER_OPCODE *opcode_table = This->baseShader.shader_ins;
 789     const SHADER_HANDLER *handler_table = device->shader_backend->shader_instruction_handler_table;
 790     DWORD shader_version = reg_maps->shader_version;
 791     struct wined3d_shader_dst_param dst_param;
 792     struct wined3d_shader_instruction ins;
 793     const DWORD *pToken = pFunction;
 794     const SHADER_OPCODE *curOpcode;
 795     SHADER_HANDLER hw_fct;
 796     DWORD i;
 797
 798     /* Initialize current parsing state */
 799     ins.shader = iface;
 800     ins.buffer = buffer;
 801     ins.reg_maps = reg_maps;
 802     ins.dst = &dst_param;
 803     This->baseShader.parse_state.current_row = 0;
 804
 805     while (WINED3DPS_END() != *pToken)
 806     {
 807         DWORD opcode_token;
 808
 809         /* Skip version token */
 810         if (shader_is_version_token(*pToken))
 811         {
 812             ++pToken;
 813             continue;
 814         }
 815
 816         /* Skip comment tokens */
 817         if (shader_is_comment(*pToken))
 818         {
 819             pToken += (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 820             ++pToken;
 821             continue;
 822         }
 823
 824         /* Read opcode */
 825         opcode_token = *pToken++;
 826         curOpcode = shader_get_opcode(opcode_table, shader_version, opcode_token);
 827
 828         /* Unknown opcode and its parameters */
 829         if (!curOpcode)
 830         {
 831             FIXME("Unrecognized opcode: token=0x%08x\n", opcode_token);
 832             pToken += shader_skip_unrecognized(pToken, shader_version);
 833             continue;
 834         }
 835
 836         /* Nothing to do */
 837         if (WINED3DSIO_DCL == curOpcode->opcode
 838                 || WINED3DSIO_NOP == curOpcode->opcode
 839                 || WINED3DSIO_DEF == curOpcode->opcode
 840                 || WINED3DSIO_DEFI == curOpcode->opcode
 841                 || WINED3DSIO_DEFB == curOpcode->opcode
 842                 || WINED3DSIO_PHASE == curOpcode->opcode
 843                 || WINED3DSIO_RET == curOpcode->opcode)
 844         {
 845             pToken += shader_skip_opcode(curOpcode, opcode_token, shader_version);
 846             continue;
 847         }
 848
 849         /* Select handler */
 850         hw_fct = handler_table[curOpcode->handler_idx];
 851
 852         /* Unhandled opcode */
 853         if (!hw_fct)
 854         {
 855             FIXME("Can't handle opcode %s in hwShader\n", curOpcode->name);
 856             pToken += shader_skip_opcode(curOpcode, opcode_token, shader_version);
 857             continue;
 858         }
 859
 860         ins.handler_idx = curOpcode->handler_idx;
 861         ins.flags = opcode_token & WINED3D_OPCODESPECIFICCONTROL_MASK;
 862         ins.coissue = opcode_token & WINED3DSI_COISSUE;
 863
 864         /* Destination token */
 865         ins.dst_count = curOpcode->dst_token ? 1 : 0;
 866         if (ins.dst_count)
 867         {
 868             DWORD param, addr_param = 0;
 869             pToken += shader_get_param(pToken, shader_version, &param, &addr_param);
 870             shader_parse_dst_param(param, addr_param, &dst_param);
 871         }
 872
 873         /* Predication token */
 874         if (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED) ins.predicate = *pToken++;
 875
 876         /* Other source tokens */
 877         ins.src_count = curOpcode->num_params - curOpcode->dst_token;
 878         for (i = 0; i < ins.src_count; ++i)
 879         {
 880             DWORD param, addr_token = 0;
 881             pToken += shader_get_param(pToken, shader_version, &param, &addr_token);
 882             ins.src[i] = param;
 883             ins.src_addr[i] = addr_token;
 884         }
 885
 886         /* Call appropriate function for output target */
 887         hw_fct(&ins);
 888
 889         /* Process instruction modifiers for GLSL apps ( _sat, etc. ) */
 890         /* FIXME: This should be internal to the shader backend.
 891          * Also, right now this is the only reason "shader_mode" exists. */
 892         if (This->baseShader.shader_mode == SHADER_GLSL) shader_glsl_add_instruction_modifiers(&ins);
 893     }
 894 }
 895
 896 static void shader_dump_ins_modifiers(const DWORD output)
 897 {
 898     DWORD shift = (output & WINED3DSP_DSTSHIFT_MASK) >> WINED3DSP_DSTSHIFT_SHIFT;
 899     DWORD mmask = output & WINED3DSP_DSTMOD_MASK;
 900
 901     switch (shift) {
 902         case 0: break;
 903         case 13: TRACE("_d8"); break;
 904         case 14: TRACE("_d4"); break;
 905         case 15: TRACE("_d2"); break;
 906         case 1: TRACE("_x2"); break;
 907         case 2: TRACE("_x4"); break;
 908         case 3: TRACE("_x8"); break;
 909         default: TRACE("_unhandled_shift(%d)", shift); break;
 910     }
 911
 912     if (mmask & WINED3DSPDM_SATURATE)         TRACE("_sat");
 913     if (mmask & WINED3DSPDM_PARTIALPRECISION) TRACE("_pp");
 914     if (mmask & WINED3DSPDM_MSAMPCENTROID)    TRACE("_centroid");
 915
 916     mmask &= ~(WINED3DSPDM_SATURATE | WINED3DSPDM_PARTIALPRECISION | WINED3DSPDM_MSAMPCENTROID);
 917     if (mmask)
 918         FIXME("_unrecognized_modifier(%#x)", mmask >> WINED3DSP_DSTMOD_SHIFT);
 919 }
 920
 921 void shader_trace_init(const DWORD *pFunction, const SHADER_OPCODE *opcode_table)
 922 {
 923     const DWORD* pToken = pFunction;
 924     const SHADER_OPCODE* curOpcode = NULL;
 925     DWORD shader_version;
 926     DWORD opcode_token;
 927     DWORD i;
 928
 929     TRACE("Parsing %p\n", pFunction);
 930
 931     /* The version token is supposed to be the first token */
 932     if (!shader_is_version_token(*pToken))
 933     {
 934         FIXME("First token is not a version token, invalid shader.\n");
 935         return;
 936     }
 937     shader_version = *pToken++;
 938     TRACE("%s_%u_%u\n", shader_is_pshader_version(shader_version) ? "ps": "vs",
 939             WINED3DSHADER_VERSION_MAJOR(shader_version), WINED3DSHADER_VERSION_MINOR(shader_version));
 940
 941     while (WINED3DVS_END() != *pToken)
 942     {
 943         if (shader_is_comment(*pToken)) /* comment */
 944         {
 945             DWORD comment_len = (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 946             ++pToken;
 947             TRACE("//%s\n", (const char*)pToken);
 948             pToken += comment_len;
 949             continue;
 950         }
 951         opcode_token = *pToken++;
 952         curOpcode = shader_get_opcode(opcode_table, shader_version, opcode_token);
 953
 954         if (!curOpcode)
 955         {
 956             int tokens_read;
 957             FIXME("Unrecognized opcode: token=0x%08x\n", opcode_token);
 958             tokens_read = shader_skip_unrecognized(pToken, shader_version);
 959             pToken += tokens_read;
 960         }
 961         else
 962         {
 963             if (curOpcode->opcode == WINED3DSIO_DCL)
 964             {
 965                 DWORD usage = *pToken;
 966                 DWORD param = *(pToken + 1);
 967
 968                 shader_dump_decl_usage(usage, param, shader_version);
 969                 shader_dump_ins_modifiers(param);
 970                 TRACE(" ");
 971                 shader_dump_param(param, 0, 0, shader_version);
 972                 pToken += 2;
 973             }
 974             else if (curOpcode->opcode == WINED3DSIO_DEF)
 975             {
 976                 unsigned int offset = shader_get_float_offset(*pToken);
 977
 978                 TRACE("def c%u = %f, %f, %f, %f", offset,
 979                         *(const float *)(pToken + 1),
 980                         *(const float *)(pToken + 2),
 981                         *(const float *)(pToken + 3),
 982                         *(const float *)(pToken + 4));
 983                 pToken += 5;
 984             }
 985             else if (curOpcode->opcode == WINED3DSIO_DEFI)
 986             {
 987                 TRACE("defi i%u = %d, %d, %d, %d", *pToken & WINED3DSP_REGNUM_MASK,
 988                         *(pToken + 1),
 989                         *(pToken + 2),
 990                         *(pToken + 3),
 991                         *(pToken + 4));
 992                 pToken += 5;
 993             }
 994             else if (curOpcode->opcode == WINED3DSIO_DEFB)
 995             {
 996                 TRACE("defb b%u = %s", *pToken & WINED3DSP_REGNUM_MASK,
 997                         *(pToken + 1)? "true": "false");
 998                 pToken += 2;
 999             }
1000             else
1001             {
1002                 DWORD param, addr_token;
1003                 int tokens_read;
1004
1005                 /* Print out predication source token first - it follows
1006                  * the destination token. */
1007                 if (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED)
1008                 {
1009                     TRACE("(");
1010                     shader_dump_param(*(pToken + 2), 0, 1, shader_version);
1011                     TRACE(") ");
1012                 }
1013                 if (opcode_token & WINED3DSI_COISSUE)
1014                 {
1015                     /* PixWin marks instructions with the coissue flag with a '+' */
1016                     TRACE("+");
1017                 }
1018
1019                 TRACE("%s", curOpcode->name);
1020
1021                 if (curOpcode->opcode == WINED3DSIO_IFC
1022                         || curOpcode->opcode == WINED3DSIO_BREAKC)
1023                 {
1024                     DWORD op = (opcode_token & INST_CONTROLS_MASK) >> INST_CONTROLS_SHIFT;
1025
1026                     switch (op)
1027                     {
1028                         case COMPARISON_GT: TRACE("_gt"); break;
1029                         case COMPARISON_EQ: TRACE("_eq"); break;
1030                         case COMPARISON_GE: TRACE("_ge"); break;
1031                         case COMPARISON_LT: TRACE("_lt"); break;
1032                         case COMPARISON_NE: TRACE("_ne"); break;
1033                         case COMPARISON_LE: TRACE("_le"); break;
1034                         default: TRACE("_(%u)", op);
1035                     }
1036                 }
1037                 else if (curOpcode->opcode == WINED3DSIO_TEX
1038                         && shader_version >= WINED3DPS_VERSION(2,0)
1039                         && (opcode_token & WINED3DSI_TEXLD_PROJECT))
1040                 {
1041                     TRACE("p");
1042                 }
1043
1044                 /* Destination token */
1045                 if (curOpcode->dst_token)
1046                 {
1047                     tokens_read = shader_get_param(pToken, shader_version, &param, &addr_token);
1048                     pToken += tokens_read;
1049
1050                     shader_dump_ins_modifiers(param);
1051                     TRACE(" ");
1052                     shader_dump_param(param, addr_token, 0, shader_version);
1053                 }
1054
1055                 /* Predication token - already printed out, just skip it */
1056                 if (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED)
1057                 {
1058                     pToken++;
1059                 }
1060
1061                 /* Other source tokens */
1062                 for (i = curOpcode->dst_token; i < curOpcode->num_params; ++i)
1063                 {
1064                     tokens_read = shader_get_param(pToken, shader_version, &param, &addr_token);
1065                     pToken += tokens_read;
1066
1067                     TRACE((i == 0)? " " : ", ");
1068                     shader_dump_param(param, addr_token, 1, shader_version);
1069                 }
1070             }
1071             TRACE("\n");
1072         }
1073     }
1074 }
1075
1076 void shader_cleanup(IWineD3DBaseShader *iface)
1077 {
1078     IWineD3DBaseShaderImpl *This = (IWineD3DBaseShaderImpl *)iface;
1079
1080     ((IWineD3DDeviceImpl *)This->baseShader.device)->shader_backend->shader_destroy(iface);
1081     HeapFree(GetProcessHeap(), 0, This->baseShader.function);
1082     shader_delete_constant_list(&This->baseShader.constantsF);
1083     shader_delete_constant_list(&This->baseShader.constantsB);
1084     shader_delete_constant_list(&This->baseShader.constantsI);
1085     list_remove(&This->baseShader.shader_list_entry);
1086 }
1087
1088 static const SHADER_HANDLER shader_none_instruction_handler_table[WINED3DSIH_TABLE_SIZE] = {0};
1089 static void shader_none_select(IWineD3DDevice *iface, BOOL usePS, BOOL useVS) {}
1090 static void shader_none_select_depth_blt(IWineD3DDevice *iface, enum tex_types tex_type) {}
1091 static void shader_none_deselect_depth_blt(IWineD3DDevice *iface) {}
1092 static void shader_none_update_float_vertex_constants(IWineD3DDevice *iface, UINT start, UINT count) {}
1093 static void shader_none_update_float_pixel_constants(IWineD3DDevice *iface, UINT start, UINT count) {}
1094 static void shader_none_load_constants(IWineD3DDevice *iface, char usePS, char useVS) {}
1095 static void shader_none_destroy(IWineD3DBaseShader *iface) {}
1096 static HRESULT shader_none_alloc(IWineD3DDevice *iface) {return WINED3D_OK;}
1097 static void shader_none_free(IWineD3DDevice *iface) {}
1098 static BOOL shader_none_dirty_const(IWineD3DDevice *iface) {return FALSE;}
1099 static GLuint shader_none_generate_pshader(IWineD3DPixelShader *iface, SHADER_BUFFER *buffer, const struct ps_compile_args *args) {
1100     FIXME("NONE shader backend asked to generate a pixel shader\n");
1101     return 0;
1102 }
1103 static GLuint shader_none_generate_vshader(IWineD3DVertexShader *iface, SHADER_BUFFER *buffer, const struct vs_compile_args *args) {
1104     FIXME("NONE shader backend asked to generate a vertex shader\n");
1105     return 0;
1106 }
1107
1108 #define GLINFO_LOCATION      (*gl_info)
1109 static void shader_none_get_caps(WINED3DDEVTYPE devtype, const WineD3D_GL_Info *gl_info, struct shader_caps *pCaps)
1110 {
1111     /* Set the shader caps to 0 for the none shader backend */
1112     pCaps->VertexShaderVersion  = 0;
1113     pCaps->PixelShaderVersion    = 0;
1114     pCaps->PixelShader1xMaxValue = 0.0;
1115 }
1116 #undef GLINFO_LOCATION
1117 static BOOL shader_none_color_fixup_supported(struct color_fixup_desc fixup)
1118 {
1119     if (TRACE_ON(d3d_shader) && TRACE_ON(d3d))
1120     {
1121         TRACE("Checking support for fixup:\n");
1122         dump_color_fixup_desc(fixup);
1123     }
1124
1125     /* Faked to make some apps happy. */
1126     if (!is_yuv_fixup(fixup))
1127     {
1128         TRACE("[OK]\n");
1129         return TRUE;
1130     }
1131
1132     TRACE("[FAILED]\n");
1133     return FALSE;
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_update_float_vertex_constants,
1142     shader_none_update_float_pixel_constants,
1143     shader_none_load_constants,
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_color_fixup_supported,
1152 };