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

   1 /*
   2  * shaders implementation
   3  *
   4  * Copyright 2002-2003 Jason Edmeades
   5  * Copyright 2002-2003 Raphael Junqueira
   6  * Copyright 2004 Christian Costa
   7  * Copyright 2005 Oliver Stieber
   8  * Copyright 2006 Ivan Gyurdiev
   9  * 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->token = param;
 225     dst->addr_token = addr_param;
 226 }
 227
 228 /* Note that this does not count the loop register
 229  * as an address register. */
 230
 231 HRESULT shader_get_registers_used(IWineD3DBaseShader *iface, struct shader_reg_maps *reg_maps,
 232         struct wined3d_shader_semantic *semantics_in, struct wined3d_shader_semantic *semantics_out,
 233         const DWORD *byte_code)
 234 {
 235     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 236     const SHADER_OPCODE *shader_ins = This->baseShader.shader_ins;
 237     DWORD shader_version;
 238     unsigned int cur_loop_depth = 0, max_loop_depth = 0;
 239     const DWORD* pToken = byte_code;
 240     char pshader;
 241
 242     /* There are some minor differences between pixel and vertex shaders */
 243
 244     memset(reg_maps->bumpmat, 0, sizeof(reg_maps->bumpmat));
 245     memset(reg_maps->luminanceparams, 0, sizeof(reg_maps->luminanceparams));
 246
 247     /* get_registers_used is called on every compile on some 1.x shaders, which can result
 248      * in stacking up a collection of local constants. Delete the old constants if existing
 249      */
 250     shader_delete_constant_list(&This->baseShader.constantsF);
 251     shader_delete_constant_list(&This->baseShader.constantsB);
 252     shader_delete_constant_list(&This->baseShader.constantsI);
 253
 254     /* The version token is supposed to be the first token */
 255     if (!shader_is_version_token(*pToken))
 256     {
 257         FIXME("First token is not a version token, invalid shader.\n");
 258         return WINED3DERR_INVALIDCALL;
 259     }
 260     reg_maps->shader_version = shader_version = *pToken++;
 261     pshader = shader_is_pshader_version(shader_version);
 262
 263     while (WINED3DVS_END() != *pToken) {
 264         CONST SHADER_OPCODE* curOpcode;
 265         DWORD opcode_token;
 266
 267         /* Skip comments */
 268         if (shader_is_comment(*pToken))
 269         {
 270              DWORD comment_len = (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 271              ++pToken;
 272              pToken += comment_len;
 273              continue;
 274         }
 275
 276         /* Fetch opcode */
 277         opcode_token = *pToken++;
 278         curOpcode = shader_get_opcode(shader_ins, shader_version, opcode_token);
 279
 280         /* Unhandled opcode, and its parameters */
 281         if (NULL == curOpcode) {
 282            while (*pToken & 0x80000000)
 283                ++pToken;
 284
 285         /* Handle declarations */
 286         } else if (WINED3DSIO_DCL == curOpcode->opcode) {
 287
 288             DWORD usage = *pToken++;
 289             DWORD param = *pToken++;
 290             DWORD regtype = shader_get_regtype(param);
 291             unsigned int regnum = param & WINED3DSP_REGNUM_MASK;
 292
 293             /* Vshader: mark attributes used
 294                Pshader: mark 3.0 input registers used, save token */
 295             if (WINED3DSPR_INPUT == regtype) {
 296
 297                 if (!pshader)
 298                     reg_maps->attributes[regnum] = 1;
 299                 else
 300                     reg_maps->packed_input[regnum] = 1;
 301
 302                 semantics_in[regnum].usage = (usage & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
 303                 semantics_in[regnum].usage_idx =
 304                         (usage & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
 305                 shader_parse_dst_param(param, 0, &semantics_in[regnum].reg);
 306
 307             /* Vshader: mark 3.0 output registers used, save token */
 308             } else if (WINED3DSPR_OUTPUT == regtype) {
 309                 reg_maps->packed_output[regnum] = 1;
 310                 semantics_out[regnum].usage = (usage & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
 311                 semantics_out[regnum].usage_idx =
 312                         (usage & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
 313                 shader_parse_dst_param(param, 0, &semantics_out[regnum].reg);
 314
 315                 if (usage & (WINED3DDECLUSAGE_FOG << WINED3DSP_DCL_USAGE_SHIFT))
 316                     reg_maps->fog = 1;
 317
 318             /* Save sampler usage token */
 319             } else if (WINED3DSPR_SAMPLER == regtype)
 320                 reg_maps->samplers[regnum] = usage;
 321
 322         } else if (WINED3DSIO_DEF == curOpcode->opcode) {
 323
 324             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 325             if (!lconst) return E_OUTOFMEMORY;
 326             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 327             memcpy(lconst->value, pToken + 1, 4 * sizeof(DWORD));
 328
 329             /* In pixel shader 1.X shaders, the constants are clamped between [-1;1] */
 330             if (WINED3DSHADER_VERSION_MAJOR(shader_version) == 1 && pshader)
 331             {
 332                 float *value = (float *) lconst->value;
 333                 if(value[0] < -1.0) value[0] = -1.0;
 334                 else if(value[0] >  1.0) value[0] =  1.0;
 335                 if(value[1] < -1.0) value[1] = -1.0;
 336                 else if(value[1] >  1.0) value[1] =  1.0;
 337                 if(value[2] < -1.0) value[2] = -1.0;
 338                 else if(value[2] >  1.0) value[2] =  1.0;
 339                 if(value[3] < -1.0) value[3] = -1.0;
 340                 else if(value[3] >  1.0) value[3] =  1.0;
 341             }
 342
 343             list_add_head(&This->baseShader.constantsF, &lconst->entry);
 344             pToken += curOpcode->num_params;
 345
 346         } else if (WINED3DSIO_DEFI == curOpcode->opcode) {
 347
 348             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 349             if (!lconst) return E_OUTOFMEMORY;
 350             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 351             memcpy(lconst->value, pToken + 1, 4 * sizeof(DWORD));
 352             list_add_head(&This->baseShader.constantsI, &lconst->entry);
 353             pToken += curOpcode->num_params;
 354
 355         } else if (WINED3DSIO_DEFB == curOpcode->opcode) {
 356
 357             local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 358             if (!lconst) return E_OUTOFMEMORY;
 359             lconst->idx = *pToken & WINED3DSP_REGNUM_MASK;
 360             memcpy(lconst->value, pToken + 1, 1 * sizeof(DWORD));
 361             list_add_head(&This->baseShader.constantsB, &lconst->entry);
 362             pToken += curOpcode->num_params;
 363
 364         /* If there's a loop in the shader */
 365         } else if (WINED3DSIO_LOOP == curOpcode->opcode ||
 366                    WINED3DSIO_REP == curOpcode->opcode) {
 367             cur_loop_depth++;
 368             if(cur_loop_depth > max_loop_depth)
 369                 max_loop_depth = cur_loop_depth;
 370             pToken += curOpcode->num_params;
 371
 372             /* Rep and Loop always use an integer constant for the control parameters */
 373             This->baseShader.uses_int_consts = TRUE;
 374         } else if (WINED3DSIO_ENDLOOP == curOpcode->opcode ||
 375                    WINED3DSIO_ENDREP == curOpcode->opcode) {
 376             cur_loop_depth--;
 377
 378         /* For subroutine prototypes */
 379         } else if (WINED3DSIO_LABEL == curOpcode->opcode) {
 380
 381             DWORD snum = *pToken & WINED3DSP_REGNUM_MASK;
 382             reg_maps->labels[snum] = 1;
 383             pToken += curOpcode->num_params;
 384
 385         /* Set texture, address, temporary registers */
 386         } else {
 387             int i, limit;
 388
 389             /* Declare 1.X samplers implicitly, based on the destination reg. number */
 390             if (WINED3DSHADER_VERSION_MAJOR(shader_version) == 1
 391                     && pshader /* Filter different instructions with the same enum values in VS */
 392                     && (WINED3DSIO_TEX == curOpcode->opcode
 393                         || WINED3DSIO_TEXBEM == curOpcode->opcode
 394                         || WINED3DSIO_TEXBEML == curOpcode->opcode
 395                         || WINED3DSIO_TEXDP3TEX == curOpcode->opcode
 396                         || WINED3DSIO_TEXM3x2TEX == curOpcode->opcode
 397                         || WINED3DSIO_TEXM3x3SPEC == curOpcode->opcode
 398                         || WINED3DSIO_TEXM3x3TEX == curOpcode->opcode
 399                         || WINED3DSIO_TEXM3x3VSPEC == curOpcode->opcode
 400                         || WINED3DSIO_TEXREG2AR == curOpcode->opcode
 401                         || WINED3DSIO_TEXREG2GB == curOpcode->opcode
 402                         || WINED3DSIO_TEXREG2RGB == curOpcode->opcode))
 403             {
 404                 /* Fake sampler usage, only set reserved bit and ttype */
 405                 DWORD sampler_code = *pToken & WINED3DSP_REGNUM_MASK;
 406
 407                 TRACE("Setting fake 2D sampler for 1.x pixelshader\n");
 408                 reg_maps->samplers[sampler_code] = (0x1 << 31) | WINED3DSTT_2D;
 409
 410                 /* texbem is only valid with < 1.4 pixel shaders */
 411                 if(WINED3DSIO_TEXBEM  == curOpcode->opcode ||
 412                     WINED3DSIO_TEXBEML == curOpcode->opcode) {
 413                     reg_maps->bumpmat[sampler_code] = TRUE;
 414                     if(WINED3DSIO_TEXBEML == curOpcode->opcode) {
 415                         reg_maps->luminanceparams[sampler_code] = TRUE;
 416                     }
 417                 }
 418             }
 419             if(WINED3DSIO_NRM  == curOpcode->opcode) {
 420                 reg_maps->usesnrm = 1;
 421             } else if(WINED3DSIO_BEM == curOpcode->opcode && pshader) {
 422                 DWORD regnum = *pToken & WINED3DSP_REGNUM_MASK;
 423                 reg_maps->bumpmat[regnum] = TRUE;
 424             } else if(WINED3DSIO_DSY  == curOpcode->opcode) {
 425                 reg_maps->usesdsy = 1;
 426             }
 427
 428             /* This will loop over all the registers and try to
 429              * make a bitmask of the ones we're interested in.
 430              *
 431              * Relative addressing tokens are ignored, but that's
 432              * okay, since we'll catch any address registers when
 433              * they are initialized (required by spec) */
 434
 435             limit = (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED)?
 436                 curOpcode->num_params + 1: curOpcode->num_params;
 437
 438             for (i = 0; i < limit; ++i) {
 439
 440                 DWORD param, addr_token, reg, regtype;
 441                 pToken += shader_get_param(pToken, shader_version, &param, &addr_token);
 442
 443                 regtype = shader_get_regtype(param);
 444                 reg = param & WINED3DSP_REGNUM_MASK;
 445
 446                 if (WINED3DSPR_TEXTURE == regtype) { /* vs: WINED3DSPR_ADDR */
 447
 448                     if (pshader)
 449                         reg_maps->texcoord[reg] = 1;
 450                     else
 451                         reg_maps->address[reg] = 1;
 452                 }
 453
 454                 else if (WINED3DSPR_TEMP == regtype)
 455                     reg_maps->temporary[reg] = 1;
 456
 457                 else if (WINED3DSPR_INPUT == regtype) {
 458                     if( !pshader)
 459                         reg_maps->attributes[reg] = 1;
 460                     else {
 461                         if(param & WINED3DSHADER_ADDRMODE_RELATIVE) {
 462                             /* If relative addressing is used, we must assume that all registers
 463                              * are used. Even if it is a construct like v3[aL], we can't assume
 464                              * that v0, v1 and v2 aren't read because aL can be negative
 465                              */
 466                             unsigned int i;
 467                             for(i = 0; i < MAX_REG_INPUT; i++) {
 468                                 ((IWineD3DPixelShaderImpl *) This)->input_reg_used[i] = TRUE;
 469                             }
 470                         } else {
 471                             ((IWineD3DPixelShaderImpl *) This)->input_reg_used[reg] = TRUE;
 472                         }
 473                     }
 474                 }
 475
 476                 else if (WINED3DSPR_RASTOUT == regtype && reg == 1)
 477                     reg_maps->fog = 1;
 478
 479                 else if (WINED3DSPR_MISCTYPE == regtype && reg == 0 && pshader)
 480                     reg_maps->vpos = 1;
 481
 482                 else if(WINED3DSPR_CONST == regtype) {
 483                     if(param & WINED3DSHADER_ADDRMODE_RELATIVE) {
 484                         if(!pshader) {
 485                             if(reg <= ((IWineD3DVertexShaderImpl *) This)->min_rel_offset) {
 486                                 ((IWineD3DVertexShaderImpl *) This)->min_rel_offset = reg;
 487                             } else if(reg >= ((IWineD3DVertexShaderImpl *) This)->max_rel_offset) {
 488                                 ((IWineD3DVertexShaderImpl *) This)->max_rel_offset = reg;
 489                             }
 490                         }
 491                         reg_maps->usesrelconstF = TRUE;
 492                     }
 493                 }
 494                 else if(WINED3DSPR_CONSTINT == regtype) {
 495                     This->baseShader.uses_int_consts = TRUE;
 496                 }
 497                 else if(WINED3DSPR_CONSTBOOL == regtype) {
 498                     This->baseShader.uses_bool_consts = TRUE;
 499                 }
 500
 501                 /* WINED3DSPR_TEXCRDOUT is the same as WINED3DSPR_OUTPUT. _OUTPUT can be > MAX_REG_TEXCRD and is used
 502                  * in >= 3.0 shaders. Filter 3.0 shaders to prevent overflows, and also filter pixel shaders because TECRDOUT
 503                  * isn't used in them, but future register types might cause issues
 504                  */
 505                 else if (WINED3DSPR_TEXCRDOUT == regtype && i == 0 /* Only look at writes */
 506                         && !pshader && WINED3DSHADER_VERSION_MAJOR(shader_version) < 3)
 507                 {
 508                     reg_maps->texcoord_mask[reg] |= shader_get_writemask(param);
 509                 }
 510             }
 511         }
 512     }
 513     ++pToken;
 514     reg_maps->loop_depth = max_loop_depth;
 515
 516     This->baseShader.functionLength = ((char *)pToken - (char *)byte_code);
 517
 518     return WINED3D_OK;
 519 }
 520
 521 static void shader_dump_decl_usage(DWORD decl, DWORD param, DWORD shader_version)
 522 {
 523     DWORD regtype = shader_get_regtype(param);
 524
 525     TRACE("dcl");
 526
 527     if (regtype == WINED3DSPR_SAMPLER) {
 528         DWORD ttype = decl & WINED3DSP_TEXTURETYPE_MASK;
 529
 530         switch (ttype) {
 531             case WINED3DSTT_2D: TRACE("_2d"); break;
 532             case WINED3DSTT_CUBE: TRACE("_cube"); break;
 533             case WINED3DSTT_VOLUME: TRACE("_volume"); break;
 534             default: TRACE("_unknown_ttype(0x%08x)", ttype);
 535        }
 536
 537     } else {
 538
 539         DWORD usage = decl & WINED3DSP_DCL_USAGE_MASK;
 540         DWORD idx = (decl & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
 541
 542         /* Pixel shaders 3.0 don't have usage semantics */
 543         if (shader_is_pshader_version(shader_version) && shader_version < WINED3DPS_VERSION(3,0))
 544             return;
 545         else
 546             TRACE("_");
 547
 548         switch(usage) {
 549         case WINED3DDECLUSAGE_POSITION:
 550             TRACE("position%d", idx);
 551             break;
 552         case WINED3DDECLUSAGE_BLENDINDICES:
 553             TRACE("blend");
 554             break;
 555         case WINED3DDECLUSAGE_BLENDWEIGHT:
 556             TRACE("weight");
 557             break;
 558         case WINED3DDECLUSAGE_NORMAL:
 559             TRACE("normal%d", idx);
 560             break;
 561         case WINED3DDECLUSAGE_PSIZE:
 562             TRACE("psize");
 563             break;
 564         case WINED3DDECLUSAGE_COLOR:
 565             if(idx == 0)  {
 566                 TRACE("color");
 567             } else {
 568                 TRACE("specular%d", (idx - 1));
 569             }
 570             break;
 571         case WINED3DDECLUSAGE_TEXCOORD:
 572             TRACE("texture%d", idx);
 573             break;
 574         case WINED3DDECLUSAGE_TANGENT:
 575             TRACE("tangent");
 576             break;
 577         case WINED3DDECLUSAGE_BINORMAL:
 578             TRACE("binormal");
 579             break;
 580         case WINED3DDECLUSAGE_TESSFACTOR:
 581             TRACE("tessfactor");
 582             break;
 583         case WINED3DDECLUSAGE_POSITIONT:
 584             TRACE("positionT%d", idx);
 585             break;
 586         case WINED3DDECLUSAGE_FOG:
 587             TRACE("fog");
 588             break;
 589         case WINED3DDECLUSAGE_DEPTH:
 590             TRACE("depth");
 591             break;
 592         case WINED3DDECLUSAGE_SAMPLE:
 593             TRACE("sample");
 594             break;
 595         default:
 596             FIXME("unknown_semantics(0x%08x)", usage);
 597         }
 598     }
 599 }
 600
 601 static void shader_dump_arr_entry(const DWORD param, const DWORD addr_token,
 602         unsigned int reg, int input, DWORD shader_version)
 603 {
 604     char relative =
 605         ((param & WINED3DSHADER_ADDRESSMODE_MASK) == WINED3DSHADER_ADDRMODE_RELATIVE);
 606
 607     if (relative) {
 608         TRACE("[");
 609         if (addr_token)
 610             shader_dump_param(addr_token, 0, input, shader_version);
 611         else
 612             TRACE("a0.x");
 613         TRACE(" + ");
 614      }
 615      TRACE("%u", reg);
 616      if (relative)
 617          TRACE("]");
 618 }
 619
 620 static void shader_dump_param(const DWORD param, const DWORD addr_token, int input, DWORD shader_version)
 621 {
 622     static const char * const rastout_reg_names[] = { "oPos", "oFog", "oPts" };
 623     static const char * const misctype_reg_names[] = { "vPos", "vFace"};
 624     const char *swizzle_reg_chars = "xyzw";
 625
 626     DWORD reg = param & WINED3DSP_REGNUM_MASK;
 627     DWORD regtype = shader_get_regtype(param);
 628     DWORD modifier = param & WINED3DSP_SRCMOD_MASK;
 629
 630     /* There are some minor differences between pixel and vertex shaders */
 631     char pshader = shader_is_pshader_version(shader_version);
 632
 633     if (input) {
 634         if ( (modifier == WINED3DSPSM_NEG) ||
 635              (modifier == WINED3DSPSM_BIASNEG) ||
 636              (modifier == WINED3DSPSM_SIGNNEG) ||
 637              (modifier == WINED3DSPSM_X2NEG) ||
 638              (modifier == WINED3DSPSM_ABSNEG) )
 639             TRACE("-");
 640         else if (modifier == WINED3DSPSM_COMP)
 641             TRACE("1-");
 642         else if (modifier == WINED3DSPSM_NOT)
 643             TRACE("!");
 644
 645         if (modifier == WINED3DSPSM_ABS || modifier == WINED3DSPSM_ABSNEG)
 646             TRACE("abs(");
 647     }
 648
 649     switch (regtype) {
 650         case WINED3DSPR_TEMP:
 651             TRACE("r%u", reg);
 652             break;
 653         case WINED3DSPR_INPUT:
 654             TRACE("v");
 655             shader_dump_arr_entry(param, addr_token, reg, input, shader_version);
 656             break;
 657         case WINED3DSPR_CONST:
 658         case WINED3DSPR_CONST2:
 659         case WINED3DSPR_CONST3:
 660         case WINED3DSPR_CONST4:
 661             TRACE("c");
 662             shader_dump_arr_entry(param, addr_token, shader_get_float_offset(param), input, shader_version);
 663             break;
 664         case WINED3DSPR_TEXTURE: /* vs: case D3DSPR_ADDR */
 665             TRACE("%c%u", (pshader? 't':'a'), reg);
 666             break;
 667         case WINED3DSPR_RASTOUT:
 668             TRACE("%s", rastout_reg_names[reg]);
 669             break;
 670         case WINED3DSPR_COLOROUT:
 671             TRACE("oC%u", reg);
 672             break;
 673         case WINED3DSPR_DEPTHOUT:
 674             TRACE("oDepth");
 675             break;
 676         case WINED3DSPR_ATTROUT:
 677             TRACE("oD%u", reg);
 678             break;
 679         case WINED3DSPR_TEXCRDOUT:
 680
 681             /* Vertex shaders >= 3.0 use general purpose output registers
 682              * (WINED3DSPR_OUTPUT), which can include an address token */
 683
 684             if (WINED3DSHADER_VERSION_MAJOR(shader_version) >= 3) {
 685                 TRACE("o");
 686                 shader_dump_arr_entry(param, addr_token, reg, input, shader_version);
 687             }
 688             else
 689                TRACE("oT%u", reg);
 690             break;
 691         case WINED3DSPR_CONSTINT:
 692             TRACE("i");
 693             shader_dump_arr_entry(param, addr_token, reg, input, shader_version);
 694             break;
 695         case WINED3DSPR_CONSTBOOL:
 696             TRACE("b");
 697             shader_dump_arr_entry(param, addr_token, reg, input, shader_version);
 698             break;
 699         case WINED3DSPR_LABEL:
 700             TRACE("l%u", reg);
 701             break;
 702         case WINED3DSPR_LOOP:
 703             TRACE("aL");
 704             break;
 705         case WINED3DSPR_SAMPLER:
 706             TRACE("s%u", reg);
 707             break;
 708         case WINED3DSPR_MISCTYPE:
 709             if (reg > 1) {
 710                 FIXME("Unhandled misctype register %d\n", reg);
 711             } else {
 712                 TRACE("%s", misctype_reg_names[reg]);
 713             }
 714             break;
 715         case WINED3DSPR_PREDICATE:
 716             TRACE("p%u", reg);
 717             break;
 718         default:
 719             TRACE("unhandled_rtype(%#x)", regtype);
 720             break;
 721    }
 722
 723    if (!input) {
 724        /* operand output (for modifiers and shift, see dump_ins_modifiers) */
 725
 726        if ((param & WINED3DSP_WRITEMASK_ALL) != WINED3DSP_WRITEMASK_ALL) {
 727            TRACE(".");
 728            if (param & WINED3DSP_WRITEMASK_0) TRACE("%c", swizzle_reg_chars[0]);
 729            if (param & WINED3DSP_WRITEMASK_1) TRACE("%c", swizzle_reg_chars[1]);
 730            if (param & WINED3DSP_WRITEMASK_2) TRACE("%c", swizzle_reg_chars[2]);
 731            if (param & WINED3DSP_WRITEMASK_3) TRACE("%c", swizzle_reg_chars[3]);
 732        }
 733
 734    } else {
 735         /** operand input */
 736         DWORD swizzle = (param & WINED3DSP_SWIZZLE_MASK) >> WINED3DSP_SWIZZLE_SHIFT;
 737         DWORD swizzle_x = swizzle & 0x03;
 738         DWORD swizzle_y = (swizzle >> 2) & 0x03;
 739         DWORD swizzle_z = (swizzle >> 4) & 0x03;
 740         DWORD swizzle_w = (swizzle >> 6) & 0x03;
 741
 742         if (0 != modifier) {
 743             switch (modifier) {
 744                 case WINED3DSPSM_NONE:    break;
 745                 case WINED3DSPSM_NEG:     break;
 746                 case WINED3DSPSM_NOT:     break;
 747                 case WINED3DSPSM_BIAS:    TRACE("_bias"); break;
 748                 case WINED3DSPSM_BIASNEG: TRACE("_bias"); break;
 749                 case WINED3DSPSM_SIGN:    TRACE("_bx2"); break;
 750                 case WINED3DSPSM_SIGNNEG: TRACE("_bx2"); break;
 751                 case WINED3DSPSM_COMP:    break;
 752                 case WINED3DSPSM_X2:      TRACE("_x2"); break;
 753                 case WINED3DSPSM_X2NEG:   TRACE("_x2"); break;
 754                 case WINED3DSPSM_DZ:      TRACE("_dz"); break;
 755                 case WINED3DSPSM_DW:      TRACE("_dw"); break;
 756                 case WINED3DSPSM_ABSNEG:  TRACE(")"); break;
 757                 case WINED3DSPSM_ABS:     TRACE(")"); break;
 758                 default:
 759                     TRACE("_unknown_modifier(%#x)", modifier >> WINED3DSP_SRCMOD_SHIFT);
 760             }
 761         }
 762
 763         /**
 764         * swizzle bits fields:
 765         *  RRGGBBAA
 766         */
 767         if ((WINED3DVS_NOSWIZZLE >> WINED3DVS_SWIZZLE_SHIFT) != swizzle) {
 768             if (swizzle_x == swizzle_y &&
 769                 swizzle_x == swizzle_z &&
 770                 swizzle_x == swizzle_w) {
 771                     TRACE(".%c", swizzle_reg_chars[swizzle_x]);
 772             } else {
 773                 TRACE(".%c%c%c%c",
 774                 swizzle_reg_chars[swizzle_x],
 775                 swizzle_reg_chars[swizzle_y],
 776                 swizzle_reg_chars[swizzle_z],
 777                 swizzle_reg_chars[swizzle_w]);
 778             }
 779         }
 780     }
 781 }
 782
 783 /* Shared code in order to generate the bulk of the shader string.
 784  * NOTE: A description of how to parse tokens can be found on msdn */
 785 void shader_generate_main(IWineD3DBaseShader *iface, SHADER_BUFFER* buffer,
 786         const shader_reg_maps* reg_maps, CONST DWORD* pFunction)
 787 {
 788     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 789     IWineD3DDeviceImpl *device = (IWineD3DDeviceImpl *) This->baseShader.device; /* To access shader backend callbacks */
 790     const SHADER_OPCODE *opcode_table = This->baseShader.shader_ins;
 791     const SHADER_HANDLER *handler_table = device->shader_backend->shader_instruction_handler_table;
 792     DWORD shader_version = reg_maps->shader_version;
 793     struct wined3d_shader_dst_param dst_param;
 794     struct wined3d_shader_instruction ins;
 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     ins.shader = iface;
 802     ins.buffer = buffer;
 803     ins.reg_maps = reg_maps;
 804     ins.dst = &dst_param;
 805     This->baseShader.parse_state.current_row = 0;
 806
 807     while (WINED3DPS_END() != *pToken)
 808     {
 809         DWORD opcode_token;
 810
 811         /* Skip version token */
 812         if (shader_is_version_token(*pToken))
 813         {
 814             ++pToken;
 815             continue;
 816         }
 817
 818         /* Skip comment tokens */
 819         if (shader_is_comment(*pToken))
 820         {
 821             pToken += (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 822             ++pToken;
 823             continue;
 824         }
 825
 826         /* Read opcode */
 827         opcode_token = *pToken++;
 828         curOpcode = shader_get_opcode(opcode_table, shader_version, opcode_token);
 829
 830         /* Unknown opcode and its parameters */
 831         if (!curOpcode)
 832         {
 833             FIXME("Unrecognized opcode: token=0x%08x\n", opcode_token);
 834             pToken += shader_skip_unrecognized(pToken, shader_version);
 835             continue;
 836         }
 837
 838         /* Nothing to do */
 839         if (WINED3DSIO_DCL == curOpcode->opcode
 840                 || WINED3DSIO_NOP == curOpcode->opcode
 841                 || WINED3DSIO_DEF == curOpcode->opcode
 842                 || WINED3DSIO_DEFI == curOpcode->opcode
 843                 || WINED3DSIO_DEFB == curOpcode->opcode
 844                 || WINED3DSIO_PHASE == curOpcode->opcode
 845                 || WINED3DSIO_RET == curOpcode->opcode)
 846         {
 847             pToken += shader_skip_opcode(curOpcode, opcode_token, shader_version);
 848             continue;
 849         }
 850
 851         /* Select handler */
 852         hw_fct = handler_table[curOpcode->handler_idx];
 853
 854         /* Unhandled opcode */
 855         if (!hw_fct)
 856         {
 857             FIXME("Can't handle opcode %s in hwShader\n", curOpcode->name);
 858             pToken += shader_skip_opcode(curOpcode, opcode_token, shader_version);
 859             continue;
 860         }
 861
 862         ins.handler_idx = curOpcode->handler_idx;
 863         ins.flags = opcode_token & WINED3D_OPCODESPECIFICCONTROL_MASK;
 864         ins.coissue = opcode_token & WINED3DSI_COISSUE;
 865
 866         /* Destination token */
 867         ins.dst_count = curOpcode->dst_token ? 1 : 0;
 868         if (ins.dst_count)
 869         {
 870             DWORD param, addr_param = 0;
 871             pToken += shader_get_param(pToken, shader_version, &param, &addr_param);
 872             shader_parse_dst_param(param, addr_param, &dst_param);
 873         }
 874
 875         /* Predication token */
 876         if (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED) ins.predicate = *pToken++;
 877
 878         /* Other source tokens */
 879         ins.src_count = curOpcode->num_params - curOpcode->dst_token;
 880         for (i = 0; i < ins.src_count; ++i)
 881         {
 882             DWORD param, addr_token = 0;
 883             pToken += shader_get_param(pToken, shader_version, &param, &addr_token);
 884             ins.src[i] = param;
 885             ins.src_addr[i] = addr_token;
 886         }
 887
 888         /* Call appropriate function for output target */
 889         hw_fct(&ins);
 890
 891         /* Process instruction modifiers for GLSL apps ( _sat, etc. ) */
 892         /* FIXME: This should be internal to the shader backend.
 893          * Also, right now this is the only reason "shader_mode" exists. */
 894         if (This->baseShader.shader_mode == SHADER_GLSL) shader_glsl_add_instruction_modifiers(&ins);
 895     }
 896 }
 897
 898 static void shader_dump_ins_modifiers(const DWORD output)
 899 {
 900     DWORD shift = (output & WINED3DSP_DSTSHIFT_MASK) >> WINED3DSP_DSTSHIFT_SHIFT;
 901     DWORD mmask = output & WINED3DSP_DSTMOD_MASK;
 902
 903     switch (shift) {
 904         case 0: break;
 905         case 13: TRACE("_d8"); break;
 906         case 14: TRACE("_d4"); break;
 907         case 15: TRACE("_d2"); break;
 908         case 1: TRACE("_x2"); break;
 909         case 2: TRACE("_x4"); break;
 910         case 3: TRACE("_x8"); break;
 911         default: TRACE("_unhandled_shift(%d)", shift); break;
 912     }
 913
 914     if (mmask & WINED3DSPDM_SATURATE)         TRACE("_sat");
 915     if (mmask & WINED3DSPDM_PARTIALPRECISION) TRACE("_pp");
 916     if (mmask & WINED3DSPDM_MSAMPCENTROID)    TRACE("_centroid");
 917
 918     mmask &= ~(WINED3DSPDM_SATURATE | WINED3DSPDM_PARTIALPRECISION | WINED3DSPDM_MSAMPCENTROID);
 919     if (mmask)
 920         FIXME("_unrecognized_modifier(%#x)", mmask >> WINED3DSP_DSTMOD_SHIFT);
 921 }
 922
 923 void shader_trace_init(const DWORD *pFunction, const SHADER_OPCODE *opcode_table)
 924 {
 925     const DWORD* pToken = pFunction;
 926     const SHADER_OPCODE* curOpcode = NULL;
 927     DWORD shader_version;
 928     DWORD opcode_token;
 929     DWORD i;
 930
 931     TRACE("Parsing %p\n", pFunction);
 932
 933     /* The version token is supposed to be the first token */
 934     if (!shader_is_version_token(*pToken))
 935     {
 936         FIXME("First token is not a version token, invalid shader.\n");
 937         return;
 938     }
 939     shader_version = *pToken++;
 940     TRACE("%s_%u_%u\n", shader_is_pshader_version(shader_version) ? "ps": "vs",
 941             WINED3DSHADER_VERSION_MAJOR(shader_version), WINED3DSHADER_VERSION_MINOR(shader_version));
 942
 943     while (WINED3DVS_END() != *pToken)
 944     {
 945         if (shader_is_comment(*pToken)) /* comment */
 946         {
 947             DWORD comment_len = (*pToken & WINED3DSI_COMMENTSIZE_MASK) >> WINED3DSI_COMMENTSIZE_SHIFT;
 948             ++pToken;
 949             TRACE("//%s\n", (const char*)pToken);
 950             pToken += comment_len;
 951             continue;
 952         }
 953         opcode_token = *pToken++;
 954         curOpcode = shader_get_opcode(opcode_table, shader_version, opcode_token);
 955
 956         if (!curOpcode)
 957         {
 958             int tokens_read;
 959             FIXME("Unrecognized opcode: token=0x%08x\n", opcode_token);
 960             tokens_read = shader_skip_unrecognized(pToken, shader_version);
 961             pToken += tokens_read;
 962         }
 963         else
 964         {
 965             if (curOpcode->opcode == WINED3DSIO_DCL)
 966             {
 967                 DWORD usage = *pToken;
 968                 DWORD param = *(pToken + 1);
 969
 970                 shader_dump_decl_usage(usage, param, shader_version);
 971                 shader_dump_ins_modifiers(param);
 972                 TRACE(" ");
 973                 shader_dump_param(param, 0, 0, shader_version);
 974                 pToken += 2;
 975             }
 976             else if (curOpcode->opcode == WINED3DSIO_DEF)
 977             {
 978                 unsigned int offset = shader_get_float_offset(*pToken);
 979
 980                 TRACE("def c%u = %f, %f, %f, %f", offset,
 981                         *(const float *)(pToken + 1),
 982                         *(const float *)(pToken + 2),
 983                         *(const float *)(pToken + 3),
 984                         *(const float *)(pToken + 4));
 985                 pToken += 5;
 986             }
 987             else if (curOpcode->opcode == WINED3DSIO_DEFI)
 988             {
 989                 TRACE("defi i%u = %d, %d, %d, %d", *pToken & WINED3DSP_REGNUM_MASK,
 990                         *(pToken + 1),
 991                         *(pToken + 2),
 992                         *(pToken + 3),
 993                         *(pToken + 4));
 994                 pToken += 5;
 995             }
 996             else if (curOpcode->opcode == WINED3DSIO_DEFB)
 997             {
 998                 TRACE("defb b%u = %s", *pToken & WINED3DSP_REGNUM_MASK,
 999                         *(pToken + 1)? "true": "false");
1000                 pToken += 2;
1001             }
1002             else
1003             {
1004                 DWORD param, addr_token;
1005                 int tokens_read;
1006
1007                 /* Print out predication source token first - it follows
1008                  * the destination token. */
1009                 if (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED)
1010                 {
1011                     TRACE("(");
1012                     shader_dump_param(*(pToken + 2), 0, 1, shader_version);
1013                     TRACE(") ");
1014                 }
1015                 if (opcode_token & WINED3DSI_COISSUE)
1016                 {
1017                     /* PixWin marks instructions with the coissue flag with a '+' */
1018                     TRACE("+");
1019                 }
1020
1021                 TRACE("%s", curOpcode->name);
1022
1023                 if (curOpcode->opcode == WINED3DSIO_IFC
1024                         || curOpcode->opcode == WINED3DSIO_BREAKC)
1025                 {
1026                     DWORD op = (opcode_token & INST_CONTROLS_MASK) >> INST_CONTROLS_SHIFT;
1027
1028                     switch (op)
1029                     {
1030                         case COMPARISON_GT: TRACE("_gt"); break;
1031                         case COMPARISON_EQ: TRACE("_eq"); break;
1032                         case COMPARISON_GE: TRACE("_ge"); break;
1033                         case COMPARISON_LT: TRACE("_lt"); break;
1034                         case COMPARISON_NE: TRACE("_ne"); break;
1035                         case COMPARISON_LE: TRACE("_le"); break;
1036                         default: TRACE("_(%u)", op);
1037                     }
1038                 }
1039                 else if (curOpcode->opcode == WINED3DSIO_TEX
1040                         && shader_version >= WINED3DPS_VERSION(2,0)
1041                         && (opcode_token & WINED3DSI_TEXLD_PROJECT))
1042                 {
1043                     TRACE("p");
1044                 }
1045
1046                 /* Destination token */
1047                 if (curOpcode->dst_token)
1048                 {
1049                     tokens_read = shader_get_param(pToken, shader_version, &param, &addr_token);
1050                     pToken += tokens_read;
1051
1052                     shader_dump_ins_modifiers(param);
1053                     TRACE(" ");
1054                     shader_dump_param(param, addr_token, 0, shader_version);
1055                 }
1056
1057                 /* Predication token - already printed out, just skip it */
1058                 if (opcode_token & WINED3DSHADER_INSTRUCTION_PREDICATED)
1059                 {
1060                     pToken++;
1061                 }
1062
1063                 /* Other source tokens */
1064                 for (i = curOpcode->dst_token; i < curOpcode->num_params; ++i)
1065                 {
1066                     tokens_read = shader_get_param(pToken, shader_version, &param, &addr_token);
1067                     pToken += tokens_read;
1068
1069                     TRACE((i == 0)? " " : ", ");
1070                     shader_dump_param(param, addr_token, 1, shader_version);
1071                 }
1072             }
1073             TRACE("\n");
1074         }
1075     }
1076 }
1077
1078 void shader_cleanup(IWineD3DBaseShader *iface)
1079 {
1080     IWineD3DBaseShaderImpl *This = (IWineD3DBaseShaderImpl *)iface;
1081
1082     ((IWineD3DDeviceImpl *)This->baseShader.device)->shader_backend->shader_destroy(iface);
1083     HeapFree(GetProcessHeap(), 0, This->baseShader.function);
1084     shader_delete_constant_list(&This->baseShader.constantsF);
1085     shader_delete_constant_list(&This->baseShader.constantsB);
1086     shader_delete_constant_list(&This->baseShader.constantsI);
1087     list_remove(&This->baseShader.shader_list_entry);
1088 }
1089
1090 static const SHADER_HANDLER shader_none_instruction_handler_table[WINED3DSIH_TABLE_SIZE] = {0};
1091 static void shader_none_select(IWineD3DDevice *iface, BOOL usePS, BOOL useVS) {}
1092 static void shader_none_select_depth_blt(IWineD3DDevice *iface, enum tex_types tex_type) {}
1093 static void shader_none_deselect_depth_blt(IWineD3DDevice *iface) {}
1094 static void shader_none_update_float_vertex_constants(IWineD3DDevice *iface, UINT start, UINT count) {}
1095 static void shader_none_update_float_pixel_constants(IWineD3DDevice *iface, UINT start, UINT count) {}
1096 static void shader_none_load_constants(IWineD3DDevice *iface, char usePS, char useVS) {}
1097 static void shader_none_load_np2fixup_constants(IWineD3DDevice *iface, char usePS, char useVS) {}
1098 static void shader_none_destroy(IWineD3DBaseShader *iface) {}
1099 static HRESULT shader_none_alloc(IWineD3DDevice *iface) {return WINED3D_OK;}
1100 static void shader_none_free(IWineD3DDevice *iface) {}
1101 static BOOL shader_none_dirty_const(IWineD3DDevice *iface) {return FALSE;}
1102 static GLuint shader_none_generate_pshader(IWineD3DPixelShader *iface, SHADER_BUFFER *buffer, const struct ps_compile_args *args) {
1103     FIXME("NONE shader backend asked to generate a pixel shader\n");
1104     return 0;
1105 }
1106 static GLuint shader_none_generate_vshader(IWineD3DVertexShader *iface, SHADER_BUFFER *buffer, const struct vs_compile_args *args) {
1107     FIXME("NONE shader backend asked to generate a vertex shader\n");
1108     return 0;
1109 }
1110
1111 #define GLINFO_LOCATION      (*gl_info)
1112 static void shader_none_get_caps(WINED3DDEVTYPE devtype, const WineD3D_GL_Info *gl_info, struct shader_caps *pCaps)
1113 {
1114     /* Set the shader caps to 0 for the none shader backend */
1115     pCaps->VertexShaderVersion  = 0;
1116     pCaps->PixelShaderVersion    = 0;
1117     pCaps->PixelShader1xMaxValue = 0.0;
1118 }
1119 #undef GLINFO_LOCATION
1120 static BOOL shader_none_color_fixup_supported(struct color_fixup_desc fixup)
1121 {
1122     if (TRACE_ON(d3d_shader) && TRACE_ON(d3d))
1123     {
1124         TRACE("Checking support for fixup:\n");
1125         dump_color_fixup_desc(fixup);
1126     }
1127
1128     /* Faked to make some apps happy. */
1129     if (!is_yuv_fixup(fixup))
1130     {
1131         TRACE("[OK]\n");
1132         return TRUE;
1133     }
1134
1135     TRACE("[FAILED]\n");
1136     return FALSE;
1137 }
1138
1139 const shader_backend_t none_shader_backend = {
1140     shader_none_instruction_handler_table,
1141     shader_none_select,
1142     shader_none_select_depth_blt,
1143     shader_none_deselect_depth_blt,
1144     shader_none_update_float_vertex_constants,
1145     shader_none_update_float_pixel_constants,
1146     shader_none_load_constants,
1147     shader_none_load_np2fixup_constants,
1148     shader_none_destroy,
1149     shader_none_alloc,
1150     shader_none_free,
1151     shader_none_dirty_const,
1152     shader_none_generate_pshader,
1153     shader_none_generate_vshader,
1154     shader_none_get_caps,
1155     shader_none_color_fixup_supported,
1156 };