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->shift = (param & WINED3DSP_DSTSHIFT_MASK) >> WINED3DSP_DSTSHIFT_SHIFT;
 223     dst->has_rel_addr = param & WINED3DSHADER_ADDRMODE_RELATIVE;
 224     dst->addr_token = addr_param;
 225 }
 226
 227 /* Note that this does not count the loop register
 228  * as an address register. */
 229
 230 HRESULT shader_get_registers_used(IWineD3DBaseShader *iface, struct shader_reg_maps *reg_maps,
 231         struct wined3d_shader_semantic *semantics_in, struct wined3d_shader_semantic *semantics_out,
 232         const DWORD *byte_code)
 233 {
 234     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 235     const SHADER_OPCODE *shader_ins = This->baseShader.shader_ins;
 236     DWORD shader_version;
 237     unsigned int cur_loop_depth = 0, max_loop_depth = 0;
 238     const DWORD* pToken = byte_code;
 239     char pshader;
 240
 241     /* There are some minor differences between pixel and vertex shaders */
 242
 243     memset(reg_maps->bumpmat, 0, sizeof(reg_maps->bumpmat));
 244     memset(reg_maps->luminanceparams, 0, sizeof(reg_maps->luminanceparams));
 245
 246     /* get_registers_used is called on every compile on some 1.x shaders, which can result
 247      * in stacking up a collection of local constants. Delete the old constants if existing
 248      */
 249     shader_delete_constant_list(&This->baseShader.constantsF);
 250     shader_delete_constant_list(&This->baseShader.constantsB);
 251     shader_delete_constant_list(&This->baseShader.constantsI);
 252
 253     /* The version token is supposed to be the first token */
 254     if (!shader_is_version_token(*pToken))
 255     {
 256         FIXME("First token is not a version token, invalid shader.\n");
 257         return WINED3DERR_INVALIDCALL;
 258     }
 259     reg_maps->shader_version = shader_version = *pToken++;
 260     pshader = shader_is_pshader_version(shader_version);
 261
 262     while (WINED3DVS_END() != *pToken) {
 263         CONST SHADER_OPCODE* curOpcode;
 264         DWORD opcode_token;
 265
 266         /* Skip comments */
 267         if (shader_is_comment(*pToken))
 268         {
 269              DWORD comment_len = (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 270              ++pToken;
 271              pToken += comment_len;
 272              continue;
 273         }
 274
 275         /* Fetch opcode */
 276         opcode_token = *pToken++;
 277         curOpcode = shader_get_opcode(shader_ins, shader_version, opcode_token);
 278
 279         /* Unhandled opcode, and its parameters */
 280         if (NULL == curOpcode) {
 281            while (*pToken & 0x80000000)
 282                ++pToken;
 283
 284         /* Handle declarations */
 285         } else if (WINED3DSIO_DCL == curOpcode->opcode) {
 286
 287             DWORD usage = *pToken++;
 288             DWORD param = *pToken++;
 289             DWORD regtype = shader_get_regtype(param);
 290             unsigned int regnum = param & WINED3DSP_REGNUM_MASK;
 291
 292             /* Vshader: mark attributes used
 293                Pshader: mark 3.0 input registers used, save token */
 294             if (WINED3DSPR_INPUT == regtype) {
 295
 296                 if (!pshader)
 297                     reg_maps->attributes[regnum] = 1;
 298                 else
 299                     reg_maps->packed_input[regnum] = 1;
 300
 301                 semantics_in[regnum].usage = (usage & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
 302                 semantics_in[regnum].usage_idx =
 303                         (usage & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
 304                 shader_parse_dst_param(param, 0, &semantics_in[regnum].reg);
 305
 306             /* Vshader: mark 3.0 output registers used, save token */
 307             } else if (WINED3DSPR_OUTPUT == regtype) {
 308                 reg_maps->packed_output[regnum] = 1;
 309                 semantics_out[regnum].usage = (usage & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
 310                 semantics_out[regnum].usage_idx =
 311                         (usage & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
 312                 shader_parse_dst_param(param, 0, &semantics_out[regnum].reg);
 313
 314                 if (usage & (WINED3DDECLUSAGE_FOG << WINED3DSP_DCL_USAGE_SHIFT))
 315                     reg_maps->fog = 1;
 316
 317             /* Save sampler usage token */
 318             } else if (WINED3DSPR_SAMPLER == regtype)
 319                 reg_maps->samplers[regnum] = usage;
 320
 321         } else if (WINED3DSIO_DEF == curOpcode->opcode) {
 322
 323             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 324             if (!lconst) return E_OUTOFMEMORY;
 325             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 326             memcpy(lconst->value, pToken + 1, 4 * sizeof(DWORD));
 327
 328             /* In pixel shader 1.X shaders, the constants are clamped between [-1;1] */
 329             if (WINED3DSHADER_VERSION_MAJOR(shader_version) == 1 && pshader)
 330             {
 331                 float *value = (float *) lconst->value;
 332                 if(value[0] < -1.0) value[0] = -1.0;
 333                 else if(value[0] >  1.0) value[0] =  1.0;
 334                 if(value[1] < -1.0) value[1] = -1.0;
 335                 else if(value[1] >  1.0) value[1] =  1.0;
 336                 if(value[2] < -1.0) value[2] = -1.0;
 337                 else if(value[2] >  1.0) value[2] =  1.0;
 338                 if(value[3] < -1.0) value[3] = -1.0;
 339                 else if(value[3] >  1.0) value[3] =  1.0;
 340             }
 341
 342             list_add_head(&This->baseShader.constantsF, &lconst->entry);
 343             pToken += curOpcode->num_params;
 344
 345         } else if (WINED3DSIO_DEFI == curOpcode->opcode) {
 346
 347             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 348             if (!lconst) return E_OUTOFMEMORY;
 349             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 350             memcpy(lconst->value, pToken + 1, 4 * sizeof(DWORD));
 351             list_add_head(&This->baseShader.constantsI, &lconst->entry);
 352             pToken += curOpcode->num_params;
 353
 354         } else if (WINED3DSIO_DEFB == curOpcode->opcode) {
 355
 356             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 357             if (!lconst) return E_OUTOFMEMORY;
 358             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 359             memcpy(lconst->value, pToken + 1, 1 * sizeof(DWORD));
 360             list_add_head(&This->baseShader.constantsB, &lconst->entry);
 361             pToken += curOpcode->num_params;
 362
 363         /* If there's a loop in the shader */
 364         } else if (WINED3DSIO_LOOP == curOpcode->opcode ||
 365                    WINED3DSIO_REP == curOpcode->opcode) {
 366             cur_loop_depth++;
 367             if(cur_loop_depth > max_loop_depth)
 368                 max_loop_depth = cur_loop_depth;
 369             pToken += curOpcode->num_params;
 370
 371             /* Rep and Loop always use an integer constant for the control parameters */
 372             This->baseShader.uses_int_consts = TRUE;
 373         } else if (WINED3DSIO_ENDLOOP == curOpcode->opcode ||
 374                    WINED3DSIO_ENDREP == curOpcode->opcode) {
 375             cur_loop_depth--;
 376
 377         /* For subroutine prototypes */
 378         } else if (WINED3DSIO_LABEL == curOpcode->opcode) {
 379
 380             DWORD snum = *pToken & WINED3DSP_REGNUM_MASK;
 381             reg_maps->labels[snum] = 1;
 382             pToken += curOpcode->num_params;
 383
 384         /* Set texture, address, temporary registers */
 385         } else {
 386             int i, limit;
 387
 388             /* Declare 1.X samplers implicitly, based on the destination reg. number */
 389             if (WINED3DSHADER_VERSION_MAJOR(shader_version) == 1
 390                     && pshader /* Filter different instructions with the same enum values in VS */
 391                     && (WINED3DSIO_TEX == curOpcode->opcode
 392                         || WINED3DSIO_TEXBEM == curOpcode->opcode
 393                         || WINED3DSIO_TEXBEML == curOpcode->opcode
 394                         || WINED3DSIO_TEXDP3TEX == curOpcode->opcode
 395                         || WINED3DSIO_TEXM3x2TEX == curOpcode->opcode
 396                         || WINED3DSIO_TEXM3x3SPEC == curOpcode->opcode
 397                         || WINED3DSIO_TEXM3x3TEX == curOpcode->opcode
 398                         || WINED3DSIO_TEXM3x3VSPEC == curOpcode->opcode
 399                         || WINED3DSIO_TEXREG2AR == curOpcode->opcode
 400                         || WINED3DSIO_TEXREG2GB == curOpcode->opcode
 401                         || WINED3DSIO_TEXREG2RGB == curOpcode->opcode))
 402             {
 403                 /* Fake sampler usage, only set reserved bit and ttype */
 404                 DWORD sampler_code = *pToken & WINED3DSP_REGNUM_MASK;
 405
 406                 TRACE("Setting fake 2D sampler for 1.x pixelshader\n");
 407                 reg_maps->samplers[sampler_code] = (0x1 << 31) | WINED3DSTT_2D;
 408
 409                 /* texbem is only valid with < 1.4 pixel shaders */
 410                 if(WINED3DSIO_TEXBEM  == curOpcode->opcode ||
 411                     WINED3DSIO_TEXBEML == curOpcode->opcode) {
 412                     reg_maps->bumpmat[sampler_code] = TRUE;
 413                     if(WINED3DSIO_TEXBEML == curOpcode->opcode) {
 414                         reg_maps->luminanceparams[sampler_code] = TRUE;
 415                     }
 416                 }
 417             }
 418             if(WINED3DSIO_NRM  == curOpcode->opcode) {
 419                 reg_maps->usesnrm = 1;
 420             } else if(WINED3DSIO_BEM == curOpcode->opcode && pshader) {
 421                 DWORD regnum = *pToken & WINED3DSP_REGNUM_MASK;
 422                 reg_maps->bumpmat[regnum] = TRUE;
 423             } else if(WINED3DSIO_DSY  == curOpcode->opcode) {
 424                 reg_maps->usesdsy = 1;
 425             }
 426
 427             /* This will loop over all the registers and try to
 428              * make a bitmask of the ones we're interested in.
 429              *
 430              * Relative addressing tokens are ignored, but that's
 431              * okay, since we'll catch any address registers when
 432              * they are initialized (required by spec) */
 433
 434             limit = (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED)?
 435                 curOpcode->num_params + 1: curOpcode->num_params;
 436
 437             for (i = 0; i < limit; ++i) {
 438
 439                 DWORD param, addr_token, reg, regtype;
 440                 pToken += shader_get_param(pToken, shader_version, &param, &addr_token);
 441
 442                 regtype = shader_get_regtype(param);
 443                 reg = param & WINED3DSP_REGNUM_MASK;
 444
 445                 if (WINED3DSPR_TEXTURE == regtype) { /* vs: WINED3DSPR_ADDR */
 446
 447                     if (pshader)
 448                         reg_maps->texcoord[reg] = 1;
 449                     else
 450                         reg_maps->address[reg] = 1;
 451                 }
 452
 453                 else if (WINED3DSPR_TEMP == regtype)
 454                     reg_maps->temporary[reg] = 1;
 455
 456                 else if (WINED3DSPR_INPUT == regtype) {
 457                     if( !pshader)
 458                         reg_maps->attributes[reg] = 1;
 459                     else {
 460                         if(param & WINED3DSHADER_ADDRMODE_RELATIVE) {
 461                             /* If relative addressing is used, we must assume that all registers
 462                              * are used. Even if it is a construct like v3[aL], we can't assume
 463                              * that v0, v1 and v2 aren't read because aL can be negative
 464                              */
 465                             unsigned int i;
 466                             for(i = 0; i < MAX_REG_INPUT; i++) {
 467                                 ((IWineD3DPixelShaderImpl *) This)->input_reg_used[i] = TRUE;
 468                             }
 469                         } else {
 470                             ((IWineD3DPixelShaderImpl *) This)->input_reg_used[reg] = TRUE;
 471                         }
 472                     }
 473                 }
 474
 475                 else if (WINED3DSPR_RASTOUT == regtype && reg == 1)
 476                     reg_maps->fog = 1;
 477
 478                 else if (WINED3DSPR_MISCTYPE == regtype && reg == 0 && pshader)
 479                     reg_maps->vpos = 1;
 480
 481                 else if(WINED3DSPR_CONST == regtype) {
 482                     if(param & WINED3DSHADER_ADDRMODE_RELATIVE) {
 483                         if(!pshader) {
 484                             if(reg <= ((IWineD3DVertexShaderImpl *) This)->min_rel_offset) {
 485                                 ((IWineD3DVertexShaderImpl *) This)->min_rel_offset = reg;
 486                             } else if(reg >= ((IWineD3DVertexShaderImpl *) This)->max_rel_offset) {
 487                                 ((IWineD3DVertexShaderImpl *) This)->max_rel_offset = reg;
 488                             }
 489                         }
 490                         reg_maps->usesrelconstF = TRUE;
 491                     }
 492                 }
 493                 else if(WINED3DSPR_CONSTINT == regtype) {
 494                     This->baseShader.uses_int_consts = TRUE;
 495                 }
 496                 else if(WINED3DSPR_CONSTBOOL == regtype) {
 497                     This->baseShader.uses_bool_consts = TRUE;
 498                 }
 499
 500                 /* WINED3DSPR_TEXCRDOUT is the same as WINED3DSPR_OUTPUT. _OUTPUT can be > MAX_REG_TEXCRD and is used
 501                  * in >= 3.0 shaders. Filter 3.0 shaders to prevent overflows, and also filter pixel shaders because TECRDOUT
 502                  * isn't used in them, but future register types might cause issues
 503                  */
 504                 else if (WINED3DSPR_TEXCRDOUT == regtype && i == 0 /* Only look at writes */
 505                         && !pshader && WINED3DSHADER_VERSION_MAJOR(shader_version) < 3)
 506                 {
 507                     reg_maps->texcoord_mask[reg] |= shader_get_writemask(param);
 508                 }
 509             }
 510         }
 511     }
 512     ++pToken;
 513     reg_maps->loop_depth = max_loop_depth;
 514
 515     This->baseShader.functionLength = ((char *)pToken - (char *)byte_code);
 516
 517     return WINED3D_OK;
 518 }
 519
 520 static void shader_dump_decl_usage(DWORD decl, DWORD param, DWORD shader_version)
 521 {
 522     DWORD regtype = shader_get_regtype(param);
 523
 524     TRACE("dcl");
 525
 526     if (regtype == WINED3DSPR_SAMPLER) {
 527         DWORD ttype = decl & WINED3DSP_TEXTURETYPE_MASK;
 528
 529         switch (ttype) {
 530             case WINED3DSTT_2D: TRACE("_2d"); break;
 531             case WINED3DSTT_CUBE: TRACE("_cube"); break;
 532             case WINED3DSTT_VOLUME: TRACE("_volume"); break;
 533             default: TRACE("_unknown_ttype(0x%08x)", ttype);
 534        }
 535
 536     } else {
 537
 538         DWORD usage = decl & WINED3DSP_DCL_USAGE_MASK;
 539         DWORD idx = (decl & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
 540
 541         /* Pixel shaders 3.0 don't have usage semantics */
 542         if (shader_is_pshader_version(shader_version) && shader_version < WINED3DPS_VERSION(3,0))
 543             return;
 544         else
 545             TRACE("_");
 546
 547         switch(usage) {
 548         case WINED3DDECLUSAGE_POSITION:
 549             TRACE("position%d", idx);
 550             break;
 551         case WINED3DDECLUSAGE_BLENDINDICES:
 552             TRACE("blend");
 553             break;
 554         case WINED3DDECLUSAGE_BLENDWEIGHT:
 555             TRACE("weight");
 556             break;
 557         case WINED3DDECLUSAGE_NORMAL:
 558             TRACE("normal%d", idx);
 559             break;
 560         case WINED3DDECLUSAGE_PSIZE:
 561             TRACE("psize");
 562             break;
 563         case WINED3DDECLUSAGE_COLOR:
 564             if(idx == 0)  {
 565                 TRACE("color");
 566             } else {
 567                 TRACE("specular%d", (idx - 1));
 568             }
 569             break;
 570         case WINED3DDECLUSAGE_TEXCOORD:
 571             TRACE("texture%d", idx);
 572             break;
 573         case WINED3DDECLUSAGE_TANGENT:
 574             TRACE("tangent");
 575             break;
 576         case WINED3DDECLUSAGE_BINORMAL:
 577             TRACE("binormal");
 578             break;
 579         case WINED3DDECLUSAGE_TESSFACTOR:
 580             TRACE("tessfactor");
 581             break;
 582         case WINED3DDECLUSAGE_POSITIONT:
 583             TRACE("positionT%d", idx);
 584             break;
 585         case WINED3DDECLUSAGE_FOG:
 586             TRACE("fog");
 587             break;
 588         case WINED3DDECLUSAGE_DEPTH:
 589             TRACE("depth");
 590             break;
 591         case WINED3DDECLUSAGE_SAMPLE:
 592             TRACE("sample");
 593             break;
 594         default:
 595             FIXME("unknown_semantics(0x%08x)", usage);
 596         }
 597     }
 598 }
 599
 600 static void shader_dump_arr_entry(const DWORD param, const DWORD addr_token,
 601         unsigned int reg, int input, DWORD shader_version)
 602 {
 603     char relative =
 604         ((param & WINED3DSHADER_ADDRESSMODE_MASK) == WINED3DSHADER_ADDRMODE_RELATIVE);
 605
 606     if (relative) {
 607         TRACE("[");
 608         if (addr_token)
 609             shader_dump_param(addr_token, 0, input, shader_version);
 610         else
 611             TRACE("a0.x");
 612         TRACE(" + ");
 613      }
 614      TRACE("%u", reg);
 615      if (relative)
 616          TRACE("]");
 617 }
 618
 619 static void shader_dump_param(const DWORD param, const DWORD addr_token, int input, DWORD shader_version)
 620 {
 621     static const char * const rastout_reg_names[] = { "oPos", "oFog", "oPts" };
 622     static const char * const misctype_reg_names[] = { "vPos", "vFace"};
 623     const char *swizzle_reg_chars = "xyzw";
 624
 625     DWORD reg = param & WINED3DSP_REGNUM_MASK;
 626     DWORD regtype = shader_get_regtype(param);
 627     DWORD modifier = param & WINED3DSP_SRCMOD_MASK;
 628
 629     /* There are some minor differences between pixel and vertex shaders */
 630     char pshader = shader_is_pshader_version(shader_version);
 631
 632     if (input) {
 633         if ( (modifier == WINED3DSPSM_NEG) ||
 634              (modifier == WINED3DSPSM_BIASNEG) ||
 635              (modifier == WINED3DSPSM_SIGNNEG) ||
 636              (modifier == WINED3DSPSM_X2NEG) ||
 637              (modifier == WINED3DSPSM_ABSNEG) )
 638             TRACE("-");
 639         else if (modifier == WINED3DSPSM_COMP)
 640             TRACE("1-");
 641         else if (modifier == WINED3DSPSM_NOT)
 642             TRACE("!");
 643
 644         if (modifier == WINED3DSPSM_ABS || modifier == WINED3DSPSM_ABSNEG)
 645             TRACE("abs(");
 646     }
 647
 648     switch (regtype) {
 649         case WINED3DSPR_TEMP:
 650             TRACE("r%u", reg);
 651             break;
 652         case WINED3DSPR_INPUT:
 653             TRACE("v");
 654             shader_dump_arr_entry(param, addr_token, reg, input, shader_version);
 655             break;
 656         case WINED3DSPR_CONST:
 657         case WINED3DSPR_CONST2:
 658         case WINED3DSPR_CONST3:
 659         case WINED3DSPR_CONST4:
 660             TRACE("c");
 661             shader_dump_arr_entry(param, addr_token, shader_get_float_offset(param), input, shader_version);
 662             break;
 663         case WINED3DSPR_TEXTURE: /* vs: case D3DSPR_ADDR */
 664             TRACE("%c%u", (pshader? 't':'a'), reg);
 665             break;
 666         case WINED3DSPR_RASTOUT:
 667             TRACE("%s", rastout_reg_names[reg]);
 668             break;
 669         case WINED3DSPR_COLOROUT:
 670             TRACE("oC%u", reg);
 671             break;
 672         case WINED3DSPR_DEPTHOUT:
 673             TRACE("oDepth");
 674             break;
 675         case WINED3DSPR_ATTROUT:
 676             TRACE("oD%u", reg);
 677             break;
 678         case WINED3DSPR_TEXCRDOUT:
 679
 680             /* Vertex shaders >= 3.0 use general purpose output registers
 681              * (WINED3DSPR_OUTPUT), which can include an address token */
 682
 683             if (WINED3DSHADER_VERSION_MAJOR(shader_version) >= 3) {
 684                 TRACE("o");
 685                 shader_dump_arr_entry(param, addr_token, reg, input, shader_version);
 686             }
 687             else
 688                TRACE("oT%u", reg);
 689             break;
 690         case WINED3DSPR_CONSTINT:
 691             TRACE("i");
 692             shader_dump_arr_entry(param, addr_token, reg, input, shader_version);
 693             break;
 694         case WINED3DSPR_CONSTBOOL:
 695             TRACE("b");
 696             shader_dump_arr_entry(param, addr_token, reg, input, shader_version);
 697             break;
 698         case WINED3DSPR_LABEL:
 699             TRACE("l%u", reg);
 700             break;
 701         case WINED3DSPR_LOOP:
 702             TRACE("aL");
 703             break;
 704         case WINED3DSPR_SAMPLER:
 705             TRACE("s%u", reg);
 706             break;
 707         case WINED3DSPR_MISCTYPE:
 708             if (reg > 1) {
 709                 FIXME("Unhandled misctype register %d\n", reg);
 710             } else {
 711                 TRACE("%s", misctype_reg_names[reg]);
 712             }
 713             break;
 714         case WINED3DSPR_PREDICATE:
 715             TRACE("p%u", reg);
 716             break;
 717         default:
 718             TRACE("unhandled_rtype(%#x)", regtype);
 719             break;
 720    }
 721
 722    if (!input) {
 723        /* operand output (for modifiers and shift, see dump_ins_modifiers) */
 724
 725        if ((param & WINED3DSP_WRITEMASK_ALL) != WINED3DSP_WRITEMASK_ALL) {
 726            TRACE(".");
 727            if (param & WINED3DSP_WRITEMASK_0) TRACE("%c", swizzle_reg_chars[0]);
 728            if (param & WINED3DSP_WRITEMASK_1) TRACE("%c", swizzle_reg_chars[1]);
 729            if (param & WINED3DSP_WRITEMASK_2) TRACE("%c", swizzle_reg_chars[2]);
 730            if (param & WINED3DSP_WRITEMASK_3) TRACE("%c", swizzle_reg_chars[3]);
 731        }
 732
 733    } else {
 734         /** operand input */
 735         DWORD swizzle = (param & WINED3DSP_SWIZZLE_MASK) >> WINED3DSP_SWIZZLE_SHIFT;
 736         DWORD swizzle_x = swizzle & 0x03;
 737         DWORD swizzle_y = (swizzle >> 2) & 0x03;
 738         DWORD swizzle_z = (swizzle >> 4) & 0x03;
 739         DWORD swizzle_w = (swizzle >> 6) & 0x03;
 740
 741         if (0 != modifier) {
 742             switch (modifier) {
 743                 case WINED3DSPSM_NONE:    break;
 744                 case WINED3DSPSM_NEG:     break;
 745                 case WINED3DSPSM_NOT:     break;
 746                 case WINED3DSPSM_BIAS:    TRACE("_bias"); break;
 747                 case WINED3DSPSM_BIASNEG: TRACE("_bias"); break;
 748                 case WINED3DSPSM_SIGN:    TRACE("_bx2"); break;
 749                 case WINED3DSPSM_SIGNNEG: TRACE("_bx2"); break;
 750                 case WINED3DSPSM_COMP:    break;
 751                 case WINED3DSPSM_X2:      TRACE("_x2"); break;
 752                 case WINED3DSPSM_X2NEG:   TRACE("_x2"); break;
 753                 case WINED3DSPSM_DZ:      TRACE("_dz"); break;
 754                 case WINED3DSPSM_DW:      TRACE("_dw"); break;
 755                 case WINED3DSPSM_ABSNEG:  TRACE(")"); break;
 756                 case WINED3DSPSM_ABS:     TRACE(")"); break;
 757                 default:
 758                     TRACE("_unknown_modifier(%#x)", modifier >> WINED3DSP_SRCMOD_SHIFT);
 759             }
 760         }
 761
 762         /**
 763         * swizzle bits fields:
 764         *  RRGGBBAA
 765         */
 766         if ((WINED3DVS_NOSWIZZLE >> WINED3DVS_SWIZZLE_SHIFT) != swizzle) {
 767             if (swizzle_x == swizzle_y &&
 768                 swizzle_x == swizzle_z &&
 769                 swizzle_x == swizzle_w) {
 770                     TRACE(".%c", swizzle_reg_chars[swizzle_x]);
 771             } else {
 772                 TRACE(".%c%c%c%c",
 773                 swizzle_reg_chars[swizzle_x],
 774                 swizzle_reg_chars[swizzle_y],
 775                 swizzle_reg_chars[swizzle_z],
 776                 swizzle_reg_chars[swizzle_w]);
 777             }
 778         }
 779     }
 780 }
 781
 782 /* Shared code in order to generate the bulk of the shader string.
 783  * NOTE: A description of how to parse tokens can be found on msdn */
 784 void shader_generate_main(IWineD3DBaseShader *iface, SHADER_BUFFER* buffer,
 785         const shader_reg_maps* reg_maps, CONST DWORD* pFunction)
 786 {
 787     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 788     IWineD3DDeviceImpl *device = (IWineD3DDeviceImpl *) This->baseShader.device; /* To access shader backend callbacks */
 789     const SHADER_OPCODE *opcode_table = This->baseShader.shader_ins;
 790     const SHADER_HANDLER *handler_table = device->shader_backend->shader_instruction_handler_table;
 791     DWORD shader_version = reg_maps->shader_version;
 792     struct wined3d_shader_dst_param dst_param;
 793     struct wined3d_shader_instruction ins;
 794     struct wined3d_shader_context ctx;
 795     const DWORD *pToken = pFunction;
 796     const SHADER_OPCODE *curOpcode;
 797     SHADER_HANDLER hw_fct;
 798     DWORD i;
 799
 800     /* Initialize current parsing state */
 801     ctx.shader = iface;
 802     ctx.reg_maps = reg_maps;
 803     ctx.buffer = buffer;
 804
 805     ins.ctx = &ctx;
 806     ins.dst = &dst_param;
 807     This->baseShader.parse_state.current_row = 0;
 808
 809     while (WINED3DPS_END() != *pToken)
 810     {
 811         DWORD opcode_token;
 812
 813         /* Skip version token */
 814         if (shader_is_version_token(*pToken))
 815         {
 816             ++pToken;
 817             continue;
 818         }
 819
 820         /* Skip comment tokens */
 821         if (shader_is_comment(*pToken))
 822         {
 823             pToken += (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 824             ++pToken;
 825             continue;
 826         }
 827
 828         /* Read opcode */
 829         opcode_token = *pToken++;
 830         curOpcode = shader_get_opcode(opcode_table, shader_version, opcode_token);
 831
 832         /* Unknown opcode and its parameters */
 833         if (!curOpcode)
 834         {
 835             FIXME("Unrecognized opcode: token=0x%08x\n", opcode_token);
 836             pToken += shader_skip_unrecognized(pToken, shader_version);
 837             continue;
 838         }
 839
 840         /* Nothing to do */
 841         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(curOpcode, opcode_token, shader_version);
 850             continue;
 851         }
 852
 853         /* Select handler */
 854         hw_fct = handler_table[curOpcode->handler_idx];
 855
 856         /* Unhandled opcode */
 857         if (!hw_fct)
 858         {
 859             FIXME("Can't handle opcode %s in hwShader\n", curOpcode->name);
 860             pToken += shader_skip_opcode(curOpcode, opcode_token, shader_version);
 861             continue;
 862         }
 863
 864         ins.handler_idx = curOpcode->handler_idx;
 865         ins.flags = opcode_token & WINED3D_OPCODESPECIFICCONTROL_MASK;
 866         ins.coissue = opcode_token & WINED3DSI_COISSUE;
 867
 868         /* Destination token */
 869         ins.dst_count = curOpcode->dst_token ? 1 : 0;
 870         if (ins.dst_count)
 871         {
 872             DWORD param, addr_param = 0;
 873             pToken += shader_get_param(pToken, shader_version, &param, &addr_param);
 874             shader_parse_dst_param(param, addr_param, &dst_param);
 875         }
 876
 877         /* Predication token */
 878         if (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED) ins.predicate = *pToken++;
 879
 880         /* Other source tokens */
 881         ins.src_count = curOpcode->num_params - curOpcode->dst_token;
 882         for (i = 0; i < ins.src_count; ++i)
 883         {
 884             DWORD param, addr_token = 0;
 885             pToken += shader_get_param(pToken, shader_version, &param, &addr_token);
 886             ins.src[i] = param;
 887             ins.src_addr[i] = addr_token;
 888         }
 889
 890         /* Call appropriate function for output target */
 891         hw_fct(&ins);
 892
 893         /* Process instruction modifiers for GLSL apps ( _sat, etc. ) */
 894         /* FIXME: This should be internal to the shader backend.
 895          * Also, right now this is the only reason "shader_mode" exists. */
 896         if (This->baseShader.shader_mode == SHADER_GLSL) shader_glsl_add_instruction_modifiers(&ins);
 897     }
 898 }
 899
 900 static void shader_dump_ins_modifiers(const DWORD output)
 901 {
 902     DWORD shift = (output & WINED3DSP_DSTSHIFT_MASK) >> WINED3DSP_DSTSHIFT_SHIFT;
 903     DWORD mmask = output & WINED3DSP_DSTMOD_MASK;
 904
 905     switch (shift) {
 906         case 0: break;
 907         case 13: TRACE("_d8"); break;
 908         case 14: TRACE("_d4"); break;
 909         case 15: TRACE("_d2"); break;
 910         case 1: TRACE("_x2"); break;
 911         case 2: TRACE("_x4"); break;
 912         case 3: TRACE("_x8"); break;
 913         default: TRACE("_unhandled_shift(%d)", shift); break;
 914     }
 915
 916     if (mmask & WINED3DSPDM_SATURATE)         TRACE("_sat");
 917     if (mmask & WINED3DSPDM_PARTIALPRECISION) TRACE("_pp");
 918     if (mmask & WINED3DSPDM_MSAMPCENTROID)    TRACE("_centroid");
 919
 920     mmask &= ~(WINED3DSPDM_SATURATE | WINED3DSPDM_PARTIALPRECISION | WINED3DSPDM_MSAMPCENTROID);
 921     if (mmask)
 922         FIXME("_unrecognized_modifier(%#x)", mmask >> WINED3DSP_DSTMOD_SHIFT);
 923 }
 924
 925 void shader_trace_init(const DWORD *pFunction, const SHADER_OPCODE *opcode_table)
 926 {
 927     const DWORD* pToken = pFunction;
 928     const SHADER_OPCODE* curOpcode = NULL;
 929     DWORD shader_version;
 930     DWORD opcode_token;
 931     DWORD i;
 932
 933     TRACE("Parsing %p\n", pFunction);
 934
 935     /* The version token is supposed to be the first token */
 936     if (!shader_is_version_token(*pToken))
 937     {
 938         FIXME("First token is not a version token, invalid shader.\n");
 939         return;
 940     }
 941     shader_version = *pToken++;
 942     TRACE("%s_%u_%u\n", shader_is_pshader_version(shader_version) ? "ps": "vs",
 943             WINED3DSHADER_VERSION_MAJOR(shader_version), WINED3DSHADER_VERSION_MINOR(shader_version));
 944
 945     while (WINED3DVS_END() != *pToken)
 946     {
 947         if (shader_is_comment(*pToken)) /* comment */
 948         {
 949             DWORD comment_len = (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 950             ++pToken;
 951             TRACE("//%s\n", (const char*)pToken);
 952             pToken += comment_len;
 953             continue;
 954         }
 955         opcode_token = *pToken++;
 956         curOpcode = shader_get_opcode(opcode_table, shader_version, opcode_token);
 957
 958         if (!curOpcode)
 959         {
 960             int tokens_read;
 961             FIXME("Unrecognized opcode: token=0x%08x\n", opcode_token);
 962             tokens_read = shader_skip_unrecognized(pToken, shader_version);
 963             pToken += tokens_read;
 964         }
 965         else
 966         {
 967             if (curOpcode->opcode == WINED3DSIO_DCL)
 968             {
 969                 DWORD usage = *pToken;
 970                 DWORD param = *(pToken + 1);
 971
 972                 shader_dump_decl_usage(usage, param, shader_version);
 973                 shader_dump_ins_modifiers(param);
 974                 TRACE(" ");
 975                 shader_dump_param(param, 0, 0, shader_version);
 976                 pToken += 2;
 977             }
 978             else if (curOpcode->opcode == WINED3DSIO_DEF)
 979             {
 980                 unsigned int offset = shader_get_float_offset(*pToken);
 981
 982                 TRACE("def c%u = %f, %f, %f, %f", offset,
 983                         *(const float *)(pToken + 1),
 984                         *(const float *)(pToken + 2),
 985                         *(const float *)(pToken + 3),
 986                         *(const float *)(pToken + 4));
 987                 pToken += 5;
 988             }
 989             else if (curOpcode->opcode == WINED3DSIO_DEFI)
 990             {
 991                 TRACE("defi i%u = %d, %d, %d, %d", *pToken & WINED3DSP_REGNUM_MASK,
 992                         *(pToken + 1),
 993                         *(pToken + 2),
 994                         *(pToken + 3),
 995                         *(pToken + 4));
 996                 pToken += 5;
 997             }
 998             else if (curOpcode->opcode == WINED3DSIO_DEFB)
 999             {
1000                 TRACE("defb b%u = %s", *pToken & WINED3DSP_REGNUM_MASK,
1001                         *(pToken + 1)? "true": "false");
1002                 pToken += 2;
1003             }
1004             else
1005             {
1006                 DWORD param, addr_token;
1007                 int tokens_read;
1008
1009                 /* Print out predication source token first - it follows
1010                  * the destination token. */
1011                 if (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED)
1012                 {
1013                     TRACE("(");
1014                     shader_dump_param(*(pToken + 2), 0, 1, shader_version);
1015                     TRACE(") ");
1016                 }
1017                 if (opcode_token & WINED3DSI_COISSUE)
1018                 {
1019                     /* PixWin marks instructions with the coissue flag with a '+' */
1020                     TRACE("+");
1021                 }
1022
1023                 TRACE("%s", curOpcode->name);
1024
1025                 if (curOpcode->opcode == WINED3DSIO_IFC
1026                         || curOpcode->opcode == WINED3DSIO_BREAKC)
1027                 {
1028                     DWORD op = (opcode_token & INST_CONTROLS_MASK) >> INST_CONTROLS_SHIFT;
1029
1030                     switch (op)
1031                     {
1032                         case COMPARISON_GT: TRACE("_gt"); break;
1033                         case COMPARISON_EQ: TRACE("_eq"); break;
1034                         case COMPARISON_GE: TRACE("_ge"); break;
1035                         case COMPARISON_LT: TRACE("_lt"); break;
1036                         case COMPARISON_NE: TRACE("_ne"); break;
1037                         case COMPARISON_LE: TRACE("_le"); break;
1038                         default: TRACE("_(%u)", op);
1039                     }
1040                 }
1041                 else if (curOpcode->opcode == WINED3DSIO_TEX
1042                         && shader_version >= WINED3DPS_VERSION(2,0)
1043                         && (opcode_token & WINED3DSI_TEXLD_PROJECT))
1044                 {
1045                     TRACE("p");
1046                 }
1047
1048                 /* Destination token */
1049                 if (curOpcode->dst_token)
1050                 {
1051                     tokens_read = shader_get_param(pToken, shader_version, &param, &addr_token);
1052                     pToken += tokens_read;
1053
1054                     shader_dump_ins_modifiers(param);
1055                     TRACE(" ");
1056                     shader_dump_param(param, addr_token, 0, shader_version);
1057                 }
1058
1059                 /* Predication token - already printed out, just skip it */
1060                 if (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED)
1061                 {
1062                     pToken++;
1063                 }
1064
1065                 /* Other source tokens */
1066                 for (i = curOpcode->dst_token; i < curOpcode->num_params; ++i)
1067                 {
1068                     tokens_read = shader_get_param(pToken, shader_version, &param, &addr_token);
1069                     pToken += tokens_read;
1070
1071                     TRACE((i == 0)? " " : ", ");
1072                     shader_dump_param(param, addr_token, 1, shader_version);
1073                 }
1074             }
1075             TRACE("\n");
1076         }
1077     }
1078 }
1079
1080 void shader_cleanup(IWineD3DBaseShader *iface)
1081 {
1082     IWineD3DBaseShaderImpl *This = (IWineD3DBaseShaderImpl *)iface;
1083
1084     ((IWineD3DDeviceImpl *)This->baseShader.device)->shader_backend->shader_destroy(iface);
1085     HeapFree(GetProcessHeap(), 0, This->baseShader.function);
1086     shader_delete_constant_list(&This->baseShader.constantsF);
1087     shader_delete_constant_list(&This->baseShader.constantsB);
1088     shader_delete_constant_list(&This->baseShader.constantsI);
1089     list_remove(&This->baseShader.shader_list_entry);
1090 }
1091
1092 static const SHADER_HANDLER shader_none_instruction_handler_table[WINED3DSIH_TABLE_SIZE] = {0};
1093 static void shader_none_select(IWineD3DDevice *iface, BOOL usePS, BOOL useVS) {}
1094 static void shader_none_select_depth_blt(IWineD3DDevice *iface, enum tex_types tex_type) {}
1095 static void shader_none_deselect_depth_blt(IWineD3DDevice *iface) {}
1096 static void shader_none_update_float_vertex_constants(IWineD3DDevice *iface, UINT start, UINT count) {}
1097 static void shader_none_update_float_pixel_constants(IWineD3DDevice *iface, UINT start, UINT count) {}
1098 static void shader_none_load_constants(IWineD3DDevice *iface, char usePS, char useVS) {}
1099 static void shader_none_load_np2fixup_constants(IWineD3DDevice *iface, char usePS, char useVS) {}
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 GLuint shader_none_generate_pshader(IWineD3DPixelShader *iface, SHADER_BUFFER *buffer, const struct ps_compile_args *args) {
1105     FIXME("NONE shader backend asked to generate a pixel shader\n");
1106     return 0;
1107 }
1108 static GLuint shader_none_generate_vshader(IWineD3DVertexShader *iface, SHADER_BUFFER *buffer, const struct vs_compile_args *args) {
1109     FIXME("NONE shader backend asked to generate a vertex shader\n");
1110     return 0;
1111 }
1112
1113 #define GLINFO_LOCATION      (*gl_info)
1114 static void shader_none_get_caps(WINED3DDEVTYPE devtype, const WineD3D_GL_Info *gl_info, struct shader_caps *pCaps)
1115 {
1116     /* Set the shader caps to 0 for the none shader backend */
1117     pCaps->VertexShaderVersion  = 0;
1118     pCaps->PixelShaderVersion    = 0;
1119     pCaps->PixelShader1xMaxValue = 0.0;
1120 }
1121 #undef GLINFO_LOCATION
1122 static BOOL shader_none_color_fixup_supported(struct color_fixup_desc fixup)
1123 {
1124     if (TRACE_ON(d3d_shader) && TRACE_ON(d3d))
1125     {
1126         TRACE("Checking support for fixup:\n");
1127         dump_color_fixup_desc(fixup);
1128     }
1129
1130     /* Faked to make some apps happy. */
1131     if (!is_yuv_fixup(fixup))
1132     {
1133         TRACE("[OK]\n");
1134         return TRUE;
1135     }
1136
1137     TRACE("[FAILED]\n");
1138     return FALSE;
1139 }
1140
1141 const shader_backend_t none_shader_backend = {
1142     shader_none_instruction_handler_table,
1143     shader_none_select,
1144     shader_none_select_depth_blt,
1145     shader_none_deselect_depth_blt,
1146     shader_none_update_float_vertex_constants,
1147     shader_none_update_float_pixel_constants,
1148     shader_none_load_constants,
1149     shader_none_load_np2fixup_constants,
1150     shader_none_destroy,
1151     shader_none_alloc,
1152     shader_none_free,
1153     shader_none_dirty_const,
1154     shader_none_generate_pshader,
1155     shader_none_generate_vshader,
1156     shader_none_get_caps,
1157     shader_none_color_fixup_supported,
1158 };