git.oblomov.eu Git - wine/blob - dlls/wined3d/shader_sm4.c

   1 /*
   2  * Copyright 2009 Henri Verbeet for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "config.h"
  20 #include "wine/port.h"
  21
  22 #include "wined3d_private.h"
  23
  24 WINE_DEFAULT_DEBUG_CHANNEL(d3d_shader);
  25
  26 #define WINED3D_SM4_INSTRUCTION_MODIFIER        (1 << 31)
  27
  28 #define WINED3D_SM4_INSTRUCTION_LENGTH_SHIFT    24
  29 #define WINED3D_SM4_INSTRUCTION_LENGTH_MASK     (0xf << WINED3D_SM4_INSTRUCTION_LENGTH_SHIFT)
  30
  31 #define WINED3D_SM4_OPCODE_MASK                 0xff
  32
  33 #define WINED3D_SM4_REGISTER_MODIFIER           (1 << 31)
  34
  35 #define WINED3D_SM4_REGISTER_ORDER_SHIFT        20
  36 #define WINED3D_SM4_REGISTER_ORDER_MASK         (0x3 << WINED3D_SM4_REGISTER_ORDER_SHIFT)
  37
  38 #define WINED3D_SM4_REGISTER_TYPE_SHIFT         12
  39 #define WINED3D_SM4_REGISTER_TYPE_MASK          (0xf << WINED3D_SM4_REGISTER_TYPE_SHIFT)
  40
  41 #define WINED3D_SM4_IMMCONST_TYPE_SHIFT         0
  42 #define WINED3D_SM4_IMMCONST_TYPE_MASK          (0x3 << WINED3D_SM4_IMMCONST_TYPE_SHIFT)
  43
  44 #define WINED3D_SM4_WRITEMASK_SHIFT             4
  45 #define WINED3D_SM4_WRITEMASK_MASK              (0xf << WINED3D_SM4_WRITEMASK_SHIFT)
  46
  47 #define WINED3D_SM4_SWIZZLE_SHIFT               4
  48 #define WINED3D_SM4_SWIZZLE_MASK                (0xff << WINED3D_SM4_SWIZZLE_SHIFT)
  49
  50 #define WINED3D_SM4_VERSION_MAJOR(version)      (((version) >> 4) & 0xf)
  51 #define WINED3D_SM4_VERSION_MINOR(version)      (((version) >> 0) & 0xf)
  52
  53 enum wined3d_sm4_opcode
  54 {
  55     WINED3D_SM4_OP_ADD          = 0x00,
  56     WINED3D_SM4_OP_AND          = 0x01,
  57     WINED3D_SM4_OP_BREAK        = 0x02,
  58     WINED3D_SM4_OP_BREAKC       = 0x03,
  59     WINED3D_SM4_OP_CUT          = 0x09,
  60     WINED3D_SM4_OP_DIV          = 0x0e,
  61     WINED3D_SM4_OP_DP3          = 0x10,
  62     WINED3D_SM4_OP_DP4          = 0x11,
  63     WINED3D_SM4_OP_EMIT         = 0x13,
  64     WINED3D_SM4_OP_ENDIF        = 0x15,
  65     WINED3D_SM4_OP_ENDLOOP      = 0x16,
  66     WINED3D_SM4_OP_EXP          = 0x19,
  67     WINED3D_SM4_OP_FRC          = 0x1a,
  68     WINED3D_SM4_OP_FTOI         = 0x1b,
  69     WINED3D_SM4_OP_IADD         = 0x1e,
  70     WINED3D_SM4_OP_IF           = 0x1f,
  71     WINED3D_SM4_OP_IEQ          = 0x20,
  72     WINED3D_SM4_OP_IGE          = 0x21,
  73     WINED3D_SM4_OP_IMUL         = 0x26,
  74     WINED3D_SM4_OP_ITOF         = 0x2b,
  75     WINED3D_SM4_OP_LD           = 0x2d,
  76     WINED3D_SM4_OP_LOG          = 0x2f,
  77     WINED3D_SM4_OP_LOOP         = 0x30,
  78     WINED3D_SM4_OP_LT           = 0x31,
  79     WINED3D_SM4_OP_MAD          = 0x32,
  80     WINED3D_SM4_OP_MIN          = 0x33,
  81     WINED3D_SM4_OP_MAX          = 0x34,
  82     WINED3D_SM4_OP_MOV          = 0x36,
  83     WINED3D_SM4_OP_MOVC         = 0x37,
  84     WINED3D_SM4_OP_MUL          = 0x38,
  85     WINED3D_SM4_OP_RET          = 0x3e,
  86     WINED3D_SM4_OP_RSQ          = 0x44,
  87     WINED3D_SM4_OP_SAMPLE       = 0x45,
  88     WINED3D_SM4_OP_SAMPLE_LOD   = 0x48,
  89     WINED3D_SM4_OP_SAMPLE_GRAD  = 0x49,
  90     WINED3D_SM4_OP_SINCOS       = 0x4d,
  91     WINED3D_SM4_OP_UTOF         = 0x56,
  92 };
  93
  94 enum wined3d_sm4_register_type
  95 {
  96     WINED3D_SM4_RT_TEMP         = 0x0,
  97     WINED3D_SM4_RT_INPUT        = 0x1,
  98     WINED3D_SM4_RT_OUTPUT       = 0x2,
  99     WINED3D_SM4_RT_IMMCONST     = 0x4,
 100     WINED3D_SM4_RT_SAMPLER      = 0x6,
 101     WINED3D_SM4_RT_CONSTBUFFER  = 0x8,
 102     WINED3D_SM4_RT_NULL         = 0xd,
 103 };
 104
 105 enum wined3d_sm4_immconst_type
 106 {
 107     WINED3D_SM4_IMMCONST_SCALAR = 0x1,
 108     WINED3D_SM4_IMMCONST_VEC4   = 0x2,
 109 };
 110
 111 struct wined3d_sm4_data
 112 {
 113     struct wined3d_shader_version shader_version;
 114     const DWORD *end;
 115     const struct wined3d_shader_signature *output_signature;
 116 };
 117
 118 struct wined3d_sm4_opcode_info
 119 {
 120     enum wined3d_sm4_opcode opcode;
 121     enum WINED3D_SHADER_INSTRUCTION_HANDLER handler_idx;
 122     UINT dst_count;
 123     UINT src_count;
 124 };
 125
 126 struct sysval_map
 127 {
 128     enum wined3d_sysval_semantic sysval;
 129     WINED3DSHADER_PARAM_REGISTER_TYPE register_type;
 130     UINT register_idx;
 131 };
 132
 133 static const struct wined3d_sm4_opcode_info opcode_table[] =
 134 {
 135     {WINED3D_SM4_OP_ADD,        WINED3DSIH_ADD,         1,  2},
 136     {WINED3D_SM4_OP_AND,        WINED3DSIH_AND,         1,  2},
 137     {WINED3D_SM4_OP_BREAK,      WINED3DSIH_BREAK,       0,  0},
 138     {WINED3D_SM4_OP_BREAKC,     WINED3DSIH_BREAKP,      0,  1},
 139     {WINED3D_SM4_OP_CUT,        WINED3DSIH_CUT,         0,  0},
 140     {WINED3D_SM4_OP_DIV,        WINED3DSIH_DIV,         1,  2},
 141     {WINED3D_SM4_OP_DP3,        WINED3DSIH_DP3,         1,  2},
 142     {WINED3D_SM4_OP_DP4,        WINED3DSIH_DP4,         1,  2},
 143     {WINED3D_SM4_OP_EMIT,       WINED3DSIH_EMIT,        0,  0},
 144     {WINED3D_SM4_OP_ENDIF,      WINED3DSIH_ENDIF,       0,  0},
 145     {WINED3D_SM4_OP_ENDLOOP,    WINED3DSIH_ENDLOOP,     0,  0},
 146     {WINED3D_SM4_OP_EXP,        WINED3DSIH_EXP,         1,  1},
 147     {WINED3D_SM4_OP_FRC,        WINED3DSIH_FRC,         1,  1},
 148     {WINED3D_SM4_OP_FTOI,       WINED3DSIH_FTOI,        1,  1},
 149     {WINED3D_SM4_OP_IADD,       WINED3DSIH_IADD,        1,  2},
 150     {WINED3D_SM4_OP_IF,         WINED3DSIH_IF,          0,  1},
 151     {WINED3D_SM4_OP_IEQ,        WINED3DSIH_IEQ,         1,  2},
 152     {WINED3D_SM4_OP_IGE,        WINED3DSIH_IGE,         1,  2},
 153     {WINED3D_SM4_OP_IMUL,       WINED3DSIH_IMUL,        2,  2},
 154     {WINED3D_SM4_OP_ITOF,       WINED3DSIH_ITOF,        1,  1},
 155     {WINED3D_SM4_OP_LD,         WINED3DSIH_LD,          1,  2},
 156     {WINED3D_SM4_OP_LOG,        WINED3DSIH_LOG,         1,  1},
 157     {WINED3D_SM4_OP_LOOP,       WINED3DSIH_LOOP,        0,  0},
 158     {WINED3D_SM4_OP_LT,         WINED3DSIH_LT,          1,  2},
 159     {WINED3D_SM4_OP_MAD,        WINED3DSIH_MAD,         1,  3},
 160     {WINED3D_SM4_OP_MIN,        WINED3DSIH_MIN,         1,  2},
 161     {WINED3D_SM4_OP_MAX,        WINED3DSIH_MAX,         1,  2},
 162     {WINED3D_SM4_OP_MOV,        WINED3DSIH_MOV,         1,  1},
 163     {WINED3D_SM4_OP_MOVC,       WINED3DSIH_MOVC,        1,  3},
 164     {WINED3D_SM4_OP_MUL,        WINED3DSIH_MUL,         1,  2},
 165     {WINED3D_SM4_OP_RET,        WINED3DSIH_RET,         0,  0},
 166     {WINED3D_SM4_OP_RSQ,        WINED3DSIH_RSQ,         1,  1},
 167     {WINED3D_SM4_OP_SAMPLE,     WINED3DSIH_SAMPLE,      1,  3},
 168     {WINED3D_SM4_OP_SAMPLE_LOD, WINED3DSIH_SAMPLE_LOD,  1,  4},
 169     {WINED3D_SM4_OP_SAMPLE_GRAD,WINED3DSIH_SAMPLE_GRAD, 1,  5},
 170     {WINED3D_SM4_OP_SINCOS,     WINED3DSIH_SINCOS,      2,  1},
 171     {WINED3D_SM4_OP_UTOF,       WINED3DSIH_UTOF,        1,  1},
 172 };
 173
 174 static const WINED3DSHADER_PARAM_REGISTER_TYPE register_type_table[] =
 175 {
 176     /* WINED3D_SM4_RT_TEMP */           WINED3DSPR_TEMP,
 177     /* WINED3D_SM4_RT_INPUT */          WINED3DSPR_INPUT,
 178     /* WINED3D_SM4_RT_OUTPUT */         WINED3DSPR_OUTPUT,
 179     /* UNKNOWN */                       0,
 180     /* WINED3D_SM4_RT_IMMCONST */       WINED3DSPR_IMMCONST,
 181     /* UNKNOWN */                       0,
 182     /* WINED3D_SM4_RT_SAMPLER */        WINED3DSPR_SAMPLER,
 183     /* WINED3D_SM4_RT_RESOURCE */       WINED3DSPR_RESOURCE,
 184     /* WINED3D_SM4_RT_CONSTBUFFER */    WINED3DSPR_CONSTBUFFER,
 185     /* UNKNOWN */                       0,
 186     /* UNKNOWN */                       0,
 187     /* UNKNOWN */                       0,
 188     /* UNKNOWN */                       0,
 189     /* WINED3D_SM4_RT_NULL */           WINED3DSPR_NULL,
 190 };
 191
 192 static const struct sysval_map sysval_map[] =
 193 {
 194     {WINED3D_SV_DEPTH,      WINED3DSPR_DEPTHOUT,    0},
 195     {WINED3D_SV_TARGET0,    WINED3DSPR_COLOROUT,    0},
 196     {WINED3D_SV_TARGET1,    WINED3DSPR_COLOROUT,    1},
 197     {WINED3D_SV_TARGET2,    WINED3DSPR_COLOROUT,    2},
 198     {WINED3D_SV_TARGET3,    WINED3DSPR_COLOROUT,    3},
 199     {WINED3D_SV_TARGET4,    WINED3DSPR_COLOROUT,    4},
 200     {WINED3D_SV_TARGET5,    WINED3DSPR_COLOROUT,    5},
 201     {WINED3D_SV_TARGET6,    WINED3DSPR_COLOROUT,    6},
 202     {WINED3D_SV_TARGET7,    WINED3DSPR_COLOROUT,    7},
 203 };
 204
 205 static const struct wined3d_sm4_opcode_info *get_opcode_info(enum wined3d_sm4_opcode opcode)
 206 {
 207     unsigned int i;
 208
 209     for (i = 0; i < sizeof(opcode_table) / sizeof(*opcode_table); ++i)
 210     {
 211         if (opcode == opcode_table[i].opcode) return &opcode_table[i];
 212     }
 213
 214     return NULL;
 215 }
 216
 217 static void map_sysval(enum wined3d_sysval_semantic sysval, struct wined3d_shader_register *reg)
 218 {
 219     unsigned int i;
 220
 221     for (i = 0; i < sizeof(sysval_map) / sizeof(*sysval_map); ++i)
 222     {
 223         if (sysval == sysval_map[i].sysval)
 224         {
 225             reg->type = sysval_map[i].register_type;
 226             reg->idx = sysval_map[i].register_idx;
 227         }
 228     }
 229 }
 230
 231 static void map_register(struct wined3d_sm4_data *priv, struct wined3d_shader_register *reg)
 232 {
 233     switch (priv->shader_version.type)
 234     {
 235         case WINED3D_SHADER_TYPE_PIXEL:
 236             if (reg->type == WINED3DSPR_OUTPUT)
 237             {
 238                 unsigned int i;
 239                 const struct wined3d_shader_signature *s = priv->output_signature;
 240
 241                 if (!s)
 242                 {
 243                     ERR("Shader has no output signature, unable to map register.\n");
 244                     break;
 245                 }
 246
 247                 for (i = 0; i < s->element_count; ++i)
 248                 {
 249                     if (s->elements[i].register_idx == reg->idx)
 250                     {
 251                         map_sysval(s->elements[i].sysval_semantic, reg);
 252                         break;
 253                     }
 254                 }
 255             }
 256             break;
 257
 258         default:
 259             break;
 260     }
 261 }
 262
 263 static void *shader_sm4_init(const DWORD *byte_code, const struct wined3d_shader_signature *output_signature)
 264 {
 265     struct wined3d_sm4_data *priv = HeapAlloc(GetProcessHeap(), 0, sizeof(*priv));
 266     if (!priv)
 267     {
 268         ERR("Failed to allocate private data\n");
 269         return NULL;
 270     }
 271
 272     priv->output_signature = output_signature;
 273
 274     return priv;
 275 }
 276
 277 static void shader_sm4_free(void *data)
 278 {
 279     HeapFree(GetProcessHeap(), 0, data);
 280 }
 281
 282 static void shader_sm4_read_header(void *data, const DWORD **ptr, struct wined3d_shader_version *shader_version)
 283 {
 284     struct wined3d_sm4_data *priv = data;
 285     DWORD version_token;
 286
 287     priv->end = *ptr;
 288
 289     version_token = *(*ptr)++;
 290     TRACE("version: 0x%08x\n", version_token);
 291
 292     TRACE("token count: %u\n", **ptr);
 293     priv->end += *(*ptr)++;
 294
 295     switch (version_token >> 16)
 296     {
 297         case WINED3D_SM4_PS:
 298             priv->shader_version.type = WINED3D_SHADER_TYPE_PIXEL;
 299             break;
 300
 301         case WINED3D_SM4_VS:
 302             priv->shader_version.type = WINED3D_SHADER_TYPE_VERTEX;
 303             break;
 304
 305         case WINED3D_SM4_GS:
 306             priv->shader_version.type = WINED3D_SHADER_TYPE_GEOMETRY;
 307             break;
 308
 309         default:
 310             FIXME("Unrecognized shader type %#x\n", version_token >> 16);
 311     }
 312     priv->shader_version.major = WINED3D_SM4_VERSION_MAJOR(version_token);
 313     priv->shader_version.minor = WINED3D_SM4_VERSION_MINOR(version_token);
 314
 315     *shader_version = priv->shader_version;
 316 }
 317
 318 static void shader_sm4_read_opcode(void *data, const DWORD **ptr, struct wined3d_shader_instruction *ins,
 319         UINT *param_size)
 320 {
 321     const struct wined3d_sm4_opcode_info *opcode_info;
 322     DWORD token = *(*ptr)++;
 323     DWORD opcode = token & WINED3D_SM4_OPCODE_MASK;
 324
 325     *param_size = ((token & WINED3D_SM4_INSTRUCTION_LENGTH_MASK) >> WINED3D_SM4_INSTRUCTION_LENGTH_SHIFT) - 1;
 326
 327     opcode_info = get_opcode_info(opcode);
 328     if (!opcode_info)
 329     {
 330         FIXME("Unrecognized opcode %#x, token 0x%08x\n", opcode, token);
 331         ins->handler_idx = WINED3DSIH_TABLE_SIZE;
 332         return;
 333     }
 334
 335     ins->handler_idx = opcode_info->handler_idx;
 336     ins->flags = 0;
 337     ins->coissue = 0;
 338     ins->predicate = 0;
 339     ins->dst_count = opcode_info->dst_count;
 340     ins->src_count = opcode_info->src_count;
 341
 342     if (token & WINED3D_SM4_INSTRUCTION_MODIFIER)
 343     {
 344         DWORD modifier = *(*ptr)++;
 345         FIXME("Skipping modifier 0x%08x.\n", modifier);
 346     }
 347 }
 348
 349 static void shader_sm4_read_src_param(void *data, const DWORD **ptr, struct wined3d_shader_src_param *src_param,
 350         struct wined3d_shader_src_param *src_rel_addr)
 351 {
 352     struct wined3d_sm4_data *priv = data;
 353     DWORD token = *(*ptr)++;
 354     enum wined3d_sm4_register_type register_type;
 355     DWORD order;
 356
 357     register_type = (token & WINED3D_SM4_REGISTER_TYPE_MASK) >> WINED3D_SM4_REGISTER_TYPE_SHIFT;
 358     if (register_type >= sizeof(register_type_table) / sizeof(*register_type_table))
 359     {
 360         FIXME("Unhandled register type %#x\n", register_type);
 361         src_param->reg.type = WINED3DSPR_TEMP;
 362     }
 363     else
 364     {
 365         src_param->reg.type = register_type_table[register_type];
 366     }
 367
 368     if (token & WINED3D_SM4_REGISTER_MODIFIER)
 369     {
 370         DWORD modifier = *(*ptr)++;
 371
 372         /* FIXME: This will probably break down at some point. The SM4
 373          * modifiers look like flags, while wined3d currently has an enum
 374          * with possible combinations, e.g. WINED3DSPSM_ABSNEG. */
 375         switch (modifier)
 376         {
 377             case 0x41:
 378                 src_param->modifiers = WINED3DSPSM_NEG;
 379                 break;
 380
 381             case 0x81:
 382                 src_param->modifiers = WINED3DSPSM_ABS;
 383                 break;
 384
 385             default:
 386                 FIXME("Skipping modifier 0x%08x.\n", modifier);
 387                 src_param->modifiers = WINED3DSPSM_NONE;
 388                 break;
 389         }
 390     }
 391     else
 392     {
 393         src_param->modifiers = WINED3DSPSM_NONE;
 394     }
 395
 396     order = (token & WINED3D_SM4_REGISTER_ORDER_MASK) >> WINED3D_SM4_REGISTER_ORDER_SHIFT;
 397
 398     if (order < 1) src_param->reg.idx = ~0U;
 399     else src_param->reg.idx = *(*ptr)++;
 400
 401     if (order < 2) src_param->reg.array_idx = ~0U;
 402     else src_param->reg.array_idx = *(*ptr)++;
 403
 404     if (order > 2) FIXME("Unhandled order %u.\n", order);
 405
 406     if (register_type == WINED3D_SM4_RT_IMMCONST)
 407     {
 408         enum wined3d_sm4_immconst_type immconst_type =
 409                 (token & WINED3D_SM4_IMMCONST_TYPE_MASK) >> WINED3D_SM4_IMMCONST_TYPE_SHIFT;
 410         src_param->swizzle = WINED3DSP_NOSWIZZLE;
 411
 412         switch(immconst_type)
 413         {
 414             case WINED3D_SM4_IMMCONST_SCALAR:
 415                 src_param->reg.immconst_type = WINED3D_IMMCONST_SCALAR;
 416                 memcpy(src_param->reg.immconst_data, *ptr, 1 * sizeof(DWORD));
 417                 *ptr += 1;
 418                 break;
 419
 420             case WINED3D_SM4_IMMCONST_VEC4:
 421                 src_param->reg.immconst_type = WINED3D_IMMCONST_VEC4;
 422                 memcpy(src_param->reg.immconst_data, *ptr, 4 * sizeof(DWORD));
 423                 *ptr += 4;
 424                 break;
 425
 426             default:
 427                 FIXME("Unhandled immediate constant type %#x\n", immconst_type);
 428                 break;
 429         }
 430     }
 431     else
 432     {
 433         src_param->swizzle = (token & WINED3D_SM4_SWIZZLE_MASK) >> WINED3D_SM4_SWIZZLE_SHIFT;
 434     }
 435
 436     src_param->reg.rel_addr = NULL;
 437
 438     map_register(priv, &src_param->reg);
 439 }
 440
 441 static void shader_sm4_read_dst_param(void *data, const DWORD **ptr, struct wined3d_shader_dst_param *dst_param,
 442         struct wined3d_shader_src_param *dst_rel_addr)
 443 {
 444     struct wined3d_sm4_data *priv = data;
 445     DWORD token = *(*ptr)++;
 446     enum wined3d_sm4_register_type register_type;
 447     DWORD order;
 448
 449     register_type = (token & WINED3D_SM4_REGISTER_TYPE_MASK) >> WINED3D_SM4_REGISTER_TYPE_SHIFT;
 450     if (register_type >= sizeof(register_type_table) / sizeof(*register_type_table))
 451     {
 452         FIXME("Unhandled register type %#x\n", register_type);
 453         dst_param->reg.type = WINED3DSPR_TEMP;
 454     }
 455     else
 456     {
 457         dst_param->reg.type = register_type_table[register_type];
 458     }
 459
 460     order = (token & WINED3D_SM4_REGISTER_ORDER_MASK) >> WINED3D_SM4_REGISTER_ORDER_SHIFT;
 461
 462     if (order < 1) dst_param->reg.idx = ~0U;
 463     else dst_param->reg.idx = *(*ptr)++;
 464
 465     if (order < 2) dst_param->reg.array_idx = ~0U;
 466     else dst_param->reg.array_idx = *(*ptr)++;
 467
 468     if (order > 2) FIXME("Unhandled order %u.\n", order);
 469
 470     dst_param->write_mask = (token & WINED3D_SM4_WRITEMASK_MASK) >> WINED3D_SM4_WRITEMASK_SHIFT;
 471     dst_param->modifiers = 0;
 472     dst_param->shift = 0;
 473     dst_param->reg.rel_addr = NULL;
 474
 475     map_register(priv, &dst_param->reg);
 476 }
 477
 478 static void shader_sm4_read_semantic(const DWORD **ptr, struct wined3d_shader_semantic *semantic)
 479 {
 480     FIXME("ptr %p, semantic %p stub!\n", ptr, semantic);
 481 }
 482
 483 static void shader_sm4_read_comment(const DWORD **ptr, const char **comment, UINT *comment_size)
 484 {
 485     FIXME("ptr %p, comment %p, comment_size %p stub!\n", ptr, comment, comment_size);
 486     *comment = NULL;
 487 }
 488
 489 static BOOL shader_sm4_is_end(void *data, const DWORD **ptr)
 490 {
 491     struct wined3d_sm4_data *priv = data;
 492     return *ptr == priv->end;
 493 }
 494
 495 const struct wined3d_shader_frontend sm4_shader_frontend =
 496 {
 497     shader_sm4_init,
 498     shader_sm4_free,
 499     shader_sm4_read_header,
 500     shader_sm4_read_opcode,
 501     shader_sm4_read_src_param,
 502     shader_sm4_read_dst_param,
 503     shader_sm4_read_semantic,
 504     shader_sm4_read_comment,
 505     shader_sm4_is_end,
 506 };