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_DERIV_RTX    = 0x0b,
  61     WINED3D_SM4_OP_DERIV_RTY    = 0x0c,
  62     WINED3D_SM4_OP_DIV          = 0x0e,
  63     WINED3D_SM4_OP_DP3          = 0x10,
  64     WINED3D_SM4_OP_DP4          = 0x11,
  65     WINED3D_SM4_OP_EMIT         = 0x13,
  66     WINED3D_SM4_OP_ENDIF        = 0x15,
  67     WINED3D_SM4_OP_ENDLOOP      = 0x16,
  68     WINED3D_SM4_OP_EQ           = 0x18,
  69     WINED3D_SM4_OP_EXP          = 0x19,
  70     WINED3D_SM4_OP_FRC          = 0x1a,
  71     WINED3D_SM4_OP_FTOI         = 0x1b,
  72     WINED3D_SM4_OP_GE           = 0x1d,
  73     WINED3D_SM4_OP_IADD         = 0x1e,
  74     WINED3D_SM4_OP_IF           = 0x1f,
  75     WINED3D_SM4_OP_IEQ          = 0x20,
  76     WINED3D_SM4_OP_IGE          = 0x21,
  77     WINED3D_SM4_OP_IMUL         = 0x26,
  78     WINED3D_SM4_OP_ITOF         = 0x2b,
  79     WINED3D_SM4_OP_LD           = 0x2d,
  80     WINED3D_SM4_OP_LOG          = 0x2f,
  81     WINED3D_SM4_OP_LOOP         = 0x30,
  82     WINED3D_SM4_OP_LT           = 0x31,
  83     WINED3D_SM4_OP_MAD          = 0x32,
  84     WINED3D_SM4_OP_MIN          = 0x33,
  85     WINED3D_SM4_OP_MAX          = 0x34,
  86     WINED3D_SM4_OP_MOV          = 0x36,
  87     WINED3D_SM4_OP_MOVC         = 0x37,
  88     WINED3D_SM4_OP_MUL          = 0x38,
  89     WINED3D_SM4_OP_RET          = 0x3e,
  90     WINED3D_SM4_OP_ROUND_NI     = 0x41,
  91     WINED3D_SM4_OP_RSQ          = 0x44,
  92     WINED3D_SM4_OP_SAMPLE       = 0x45,
  93     WINED3D_SM4_OP_SAMPLE_LOD   = 0x48,
  94     WINED3D_SM4_OP_SAMPLE_GRAD  = 0x49,
  95     WINED3D_SM4_OP_SQRT         = 0x4b,
  96     WINED3D_SM4_OP_SINCOS       = 0x4d,
  97     WINED3D_SM4_OP_UDIV         = 0x4e,
  98     WINED3D_SM4_OP_USHR         = 0x55,
  99     WINED3D_SM4_OP_UTOF         = 0x56,
 100     WINED3D_SM4_OP_XOR          = 0x57,
 101 };
 102
 103 enum wined3d_sm4_register_type
 104 {
 105     WINED3D_SM4_RT_TEMP         = 0x0,
 106     WINED3D_SM4_RT_INPUT        = 0x1,
 107     WINED3D_SM4_RT_OUTPUT       = 0x2,
 108     WINED3D_SM4_RT_IMMCONST     = 0x4,
 109     WINED3D_SM4_RT_SAMPLER      = 0x6,
 110     WINED3D_SM4_RT_CONSTBUFFER  = 0x8,
 111     WINED3D_SM4_RT_NULL         = 0xd,
 112 };
 113
 114 enum wined3d_sm4_immconst_type
 115 {
 116     WINED3D_SM4_IMMCONST_SCALAR = 0x1,
 117     WINED3D_SM4_IMMCONST_VEC4   = 0x2,
 118 };
 119
 120 struct wined3d_sm4_data
 121 {
 122     struct wined3d_shader_version shader_version;
 123     const DWORD *end;
 124     const struct wined3d_shader_signature *output_signature;
 125 };
 126
 127 struct wined3d_sm4_opcode_info
 128 {
 129     enum wined3d_sm4_opcode opcode;
 130     enum WINED3D_SHADER_INSTRUCTION_HANDLER handler_idx;
 131     UINT dst_count;
 132     UINT src_count;
 133 };
 134
 135 struct sysval_map
 136 {
 137     enum wined3d_sysval_semantic sysval;
 138     enum wined3d_shader_register_type register_type;
 139     UINT register_idx;
 140 };
 141
 142 static const struct wined3d_sm4_opcode_info opcode_table[] =
 143 {
 144     {WINED3D_SM4_OP_ADD,        WINED3DSIH_ADD,         1,  2},
 145     {WINED3D_SM4_OP_AND,        WINED3DSIH_AND,         1,  2},
 146     {WINED3D_SM4_OP_BREAK,      WINED3DSIH_BREAK,       0,  0},
 147     {WINED3D_SM4_OP_BREAKC,     WINED3DSIH_BREAKP,      0,  1},
 148     {WINED3D_SM4_OP_CUT,        WINED3DSIH_CUT,         0,  0},
 149     {WINED3D_SM4_OP_DERIV_RTX,  WINED3DSIH_DSX,         1,  1},
 150     {WINED3D_SM4_OP_DERIV_RTY,  WINED3DSIH_DSY,         1,  1},
 151     {WINED3D_SM4_OP_DIV,        WINED3DSIH_DIV,         1,  2},
 152     {WINED3D_SM4_OP_DP3,        WINED3DSIH_DP3,         1,  2},
 153     {WINED3D_SM4_OP_DP4,        WINED3DSIH_DP4,         1,  2},
 154     {WINED3D_SM4_OP_EMIT,       WINED3DSIH_EMIT,        0,  0},
 155     {WINED3D_SM4_OP_ENDIF,      WINED3DSIH_ENDIF,       0,  0},
 156     {WINED3D_SM4_OP_ENDLOOP,    WINED3DSIH_ENDLOOP,     0,  0},
 157     {WINED3D_SM4_OP_EQ,         WINED3DSIH_EQ,          1,  2},
 158     {WINED3D_SM4_OP_EXP,        WINED3DSIH_EXP,         1,  1},
 159     {WINED3D_SM4_OP_FRC,        WINED3DSIH_FRC,         1,  1},
 160     {WINED3D_SM4_OP_FTOI,       WINED3DSIH_FTOI,        1,  1},
 161     {WINED3D_SM4_OP_GE,         WINED3DSIH_GE,          1,  2},
 162     {WINED3D_SM4_OP_IADD,       WINED3DSIH_IADD,        1,  2},
 163     {WINED3D_SM4_OP_IF,         WINED3DSIH_IF,          0,  1},
 164     {WINED3D_SM4_OP_IEQ,        WINED3DSIH_IEQ,         1,  2},
 165     {WINED3D_SM4_OP_IGE,        WINED3DSIH_IGE,         1,  2},
 166     {WINED3D_SM4_OP_IMUL,       WINED3DSIH_IMUL,        2,  2},
 167     {WINED3D_SM4_OP_ITOF,       WINED3DSIH_ITOF,        1,  1},
 168     {WINED3D_SM4_OP_LD,         WINED3DSIH_LD,          1,  2},
 169     {WINED3D_SM4_OP_LOG,        WINED3DSIH_LOG,         1,  1},
 170     {WINED3D_SM4_OP_LOOP,       WINED3DSIH_LOOP,        0,  0},
 171     {WINED3D_SM4_OP_LT,         WINED3DSIH_LT,          1,  2},
 172     {WINED3D_SM4_OP_MAD,        WINED3DSIH_MAD,         1,  3},
 173     {WINED3D_SM4_OP_MIN,        WINED3DSIH_MIN,         1,  2},
 174     {WINED3D_SM4_OP_MAX,        WINED3DSIH_MAX,         1,  2},
 175     {WINED3D_SM4_OP_MOV,        WINED3DSIH_MOV,         1,  1},
 176     {WINED3D_SM4_OP_MOVC,       WINED3DSIH_MOVC,        1,  3},
 177     {WINED3D_SM4_OP_MUL,        WINED3DSIH_MUL,         1,  2},
 178     {WINED3D_SM4_OP_RET,        WINED3DSIH_RET,         0,  0},
 179     {WINED3D_SM4_OP_ROUND_NI,   WINED3DSIH_ROUND_NI,    1,  1},
 180     {WINED3D_SM4_OP_RSQ,        WINED3DSIH_RSQ,         1,  1},
 181     {WINED3D_SM4_OP_SAMPLE,     WINED3DSIH_SAMPLE,      1,  3},
 182     {WINED3D_SM4_OP_SAMPLE_LOD, WINED3DSIH_SAMPLE_LOD,  1,  4},
 183     {WINED3D_SM4_OP_SAMPLE_GRAD,WINED3DSIH_SAMPLE_GRAD, 1,  5},
 184     {WINED3D_SM4_OP_SQRT,       WINED3DSIH_SQRT,        1,  1},
 185     {WINED3D_SM4_OP_SINCOS,     WINED3DSIH_SINCOS,      2,  1},
 186     {WINED3D_SM4_OP_UDIV,       WINED3DSIH_UDIV,        2,  2},
 187     {WINED3D_SM4_OP_USHR,       WINED3DSIH_USHR,        1,  2},
 188     {WINED3D_SM4_OP_UTOF,       WINED3DSIH_UTOF,        1,  1},
 189     {WINED3D_SM4_OP_XOR,        WINED3DSIH_XOR,         1,  2},
 190 };
 191
 192 static const enum wined3d_shader_register_type register_type_table[] =
 193 {
 194     /* WINED3D_SM4_RT_TEMP */           WINED3DSPR_TEMP,
 195     /* WINED3D_SM4_RT_INPUT */          WINED3DSPR_INPUT,
 196     /* WINED3D_SM4_RT_OUTPUT */         WINED3DSPR_OUTPUT,
 197     /* UNKNOWN */                       0,
 198     /* WINED3D_SM4_RT_IMMCONST */       WINED3DSPR_IMMCONST,
 199     /* UNKNOWN */                       0,
 200     /* WINED3D_SM4_RT_SAMPLER */        WINED3DSPR_SAMPLER,
 201     /* WINED3D_SM4_RT_RESOURCE */       WINED3DSPR_RESOURCE,
 202     /* WINED3D_SM4_RT_CONSTBUFFER */    WINED3DSPR_CONSTBUFFER,
 203     /* UNKNOWN */                       0,
 204     /* UNKNOWN */                       0,
 205     /* UNKNOWN */                       0,
 206     /* UNKNOWN */                       0,
 207     /* WINED3D_SM4_RT_NULL */           WINED3DSPR_NULL,
 208 };
 209
 210 static const struct sysval_map sysval_map[] =
 211 {
 212     {WINED3D_SV_DEPTH,      WINED3DSPR_DEPTHOUT,    0},
 213     {WINED3D_SV_TARGET0,    WINED3DSPR_COLOROUT,    0},
 214     {WINED3D_SV_TARGET1,    WINED3DSPR_COLOROUT,    1},
 215     {WINED3D_SV_TARGET2,    WINED3DSPR_COLOROUT,    2},
 216     {WINED3D_SV_TARGET3,    WINED3DSPR_COLOROUT,    3},
 217     {WINED3D_SV_TARGET4,    WINED3DSPR_COLOROUT,    4},
 218     {WINED3D_SV_TARGET5,    WINED3DSPR_COLOROUT,    5},
 219     {WINED3D_SV_TARGET6,    WINED3DSPR_COLOROUT,    6},
 220     {WINED3D_SV_TARGET7,    WINED3DSPR_COLOROUT,    7},
 221 };
 222
 223 static const struct wined3d_sm4_opcode_info *get_opcode_info(enum wined3d_sm4_opcode opcode)
 224 {
 225     unsigned int i;
 226
 227     for (i = 0; i < sizeof(opcode_table) / sizeof(*opcode_table); ++i)
 228     {
 229         if (opcode == opcode_table[i].opcode) return &opcode_table[i];
 230     }
 231
 232     return NULL;
 233 }
 234
 235 static void map_sysval(enum wined3d_sysval_semantic sysval, struct wined3d_shader_register *reg)
 236 {
 237     unsigned int i;
 238
 239     for (i = 0; i < sizeof(sysval_map) / sizeof(*sysval_map); ++i)
 240     {
 241         if (sysval == sysval_map[i].sysval)
 242         {
 243             reg->type = sysval_map[i].register_type;
 244             reg->idx = sysval_map[i].register_idx;
 245         }
 246     }
 247 }
 248
 249 static void map_register(const struct wined3d_sm4_data *priv, struct wined3d_shader_register *reg)
 250 {
 251     switch (priv->shader_version.type)
 252     {
 253         case WINED3D_SHADER_TYPE_PIXEL:
 254             if (reg->type == WINED3DSPR_OUTPUT)
 255             {
 256                 unsigned int i;
 257                 const struct wined3d_shader_signature *s = priv->output_signature;
 258
 259                 if (!s)
 260                 {
 261                     ERR("Shader has no output signature, unable to map register.\n");
 262                     break;
 263                 }
 264
 265                 for (i = 0; i < s->element_count; ++i)
 266                 {
 267                     if (s->elements[i].register_idx == reg->idx)
 268                     {
 269                         map_sysval(s->elements[i].sysval_semantic, reg);
 270                         break;
 271                     }
 272                 }
 273             }
 274             break;
 275
 276         default:
 277             break;
 278     }
 279 }
 280
 281 static void *shader_sm4_init(const DWORD *byte_code, const struct wined3d_shader_signature *output_signature)
 282 {
 283     struct wined3d_sm4_data *priv = HeapAlloc(GetProcessHeap(), 0, sizeof(*priv));
 284     if (!priv)
 285     {
 286         ERR("Failed to allocate private data\n");
 287         return NULL;
 288     }
 289
 290     priv->output_signature = output_signature;
 291
 292     return priv;
 293 }
 294
 295 static void shader_sm4_free(void *data)
 296 {
 297     HeapFree(GetProcessHeap(), 0, data);
 298 }
 299
 300 static void shader_sm4_read_header(void *data, const DWORD **ptr, struct wined3d_shader_version *shader_version)
 301 {
 302     struct wined3d_sm4_data *priv = data;
 303     DWORD version_token;
 304
 305     priv->end = *ptr;
 306
 307     version_token = *(*ptr)++;
 308     TRACE("version: 0x%08x\n", version_token);
 309
 310     TRACE("token count: %u\n", **ptr);
 311     priv->end += *(*ptr)++;
 312
 313     switch (version_token >> 16)
 314     {
 315         case WINED3D_SM4_PS:
 316             priv->shader_version.type = WINED3D_SHADER_TYPE_PIXEL;
 317             break;
 318
 319         case WINED3D_SM4_VS:
 320             priv->shader_version.type = WINED3D_SHADER_TYPE_VERTEX;
 321             break;
 322
 323         case WINED3D_SM4_GS:
 324             priv->shader_version.type = WINED3D_SHADER_TYPE_GEOMETRY;
 325             break;
 326
 327         default:
 328             FIXME("Unrecognized shader type %#x\n", version_token >> 16);
 329     }
 330     priv->shader_version.major = WINED3D_SM4_VERSION_MAJOR(version_token);
 331     priv->shader_version.minor = WINED3D_SM4_VERSION_MINOR(version_token);
 332
 333     *shader_version = priv->shader_version;
 334 }
 335
 336 static void shader_sm4_read_opcode(void *data, const DWORD **ptr, struct wined3d_shader_instruction *ins,
 337         UINT *param_size)
 338 {
 339     const struct wined3d_sm4_opcode_info *opcode_info;
 340     DWORD token = *(*ptr)++;
 341     DWORD opcode = token & WINED3D_SM4_OPCODE_MASK;
 342
 343     *param_size = ((token & WINED3D_SM4_INSTRUCTION_LENGTH_MASK) >> WINED3D_SM4_INSTRUCTION_LENGTH_SHIFT) - 1;
 344
 345     opcode_info = get_opcode_info(opcode);
 346     if (!opcode_info)
 347     {
 348         FIXME("Unrecognized opcode %#x, token 0x%08x\n", opcode, token);
 349         ins->handler_idx = WINED3DSIH_TABLE_SIZE;
 350         return;
 351     }
 352
 353     ins->handler_idx = opcode_info->handler_idx;
 354     ins->flags = 0;
 355     ins->coissue = 0;
 356     ins->predicate = 0;
 357     ins->dst_count = opcode_info->dst_count;
 358     ins->src_count = opcode_info->src_count;
 359
 360     if (token & WINED3D_SM4_INSTRUCTION_MODIFIER)
 361     {
 362         DWORD modifier = *(*ptr)++;
 363         FIXME("Skipping modifier 0x%08x.\n", modifier);
 364     }
 365 }
 366
 367 static void shader_sm4_read_src_param(void *data, const DWORD **ptr, struct wined3d_shader_src_param *src_param,
 368         struct wined3d_shader_src_param *src_rel_addr)
 369 {
 370     struct wined3d_sm4_data *priv = data;
 371     DWORD token = *(*ptr)++;
 372     enum wined3d_sm4_register_type register_type;
 373     DWORD order;
 374
 375     register_type = (token & WINED3D_SM4_REGISTER_TYPE_MASK) >> WINED3D_SM4_REGISTER_TYPE_SHIFT;
 376     if (register_type >= sizeof(register_type_table) / sizeof(*register_type_table))
 377     {
 378         FIXME("Unhandled register type %#x\n", register_type);
 379         src_param->reg.type = WINED3DSPR_TEMP;
 380     }
 381     else
 382     {
 383         src_param->reg.type = register_type_table[register_type];
 384     }
 385
 386     if (token & WINED3D_SM4_REGISTER_MODIFIER)
 387     {
 388         DWORD modifier = *(*ptr)++;
 389
 390         /* FIXME: This will probably break down at some point. The SM4
 391          * modifiers look like flags, while wined3d currently has an enum
 392          * with possible combinations, e.g. WINED3DSPSM_ABSNEG. */
 393         switch (modifier)
 394         {
 395             case 0x41:
 396                 src_param->modifiers = WINED3DSPSM_NEG;
 397                 break;
 398
 399             case 0x81:
 400                 src_param->modifiers = WINED3DSPSM_ABS;
 401                 break;
 402
 403             default:
 404                 FIXME("Skipping modifier 0x%08x.\n", modifier);
 405                 src_param->modifiers = WINED3DSPSM_NONE;
 406                 break;
 407         }
 408     }
 409     else
 410     {
 411         src_param->modifiers = WINED3DSPSM_NONE;
 412     }
 413
 414     order = (token & WINED3D_SM4_REGISTER_ORDER_MASK) >> WINED3D_SM4_REGISTER_ORDER_SHIFT;
 415
 416     if (order < 1) src_param->reg.idx = ~0U;
 417     else src_param->reg.idx = *(*ptr)++;
 418
 419     if (order < 2) src_param->reg.array_idx = ~0U;
 420     else src_param->reg.array_idx = *(*ptr)++;
 421
 422     if (order > 2) FIXME("Unhandled order %u.\n", order);
 423
 424     if (register_type == WINED3D_SM4_RT_IMMCONST)
 425     {
 426         enum wined3d_sm4_immconst_type immconst_type =
 427                 (token & WINED3D_SM4_IMMCONST_TYPE_MASK) >> WINED3D_SM4_IMMCONST_TYPE_SHIFT;
 428         src_param->swizzle = WINED3DSP_NOSWIZZLE;
 429
 430         switch(immconst_type)
 431         {
 432             case WINED3D_SM4_IMMCONST_SCALAR:
 433                 src_param->reg.immconst_type = WINED3D_IMMCONST_SCALAR;
 434                 memcpy(src_param->reg.immconst_data, *ptr, 1 * sizeof(DWORD));
 435                 *ptr += 1;
 436                 break;
 437
 438             case WINED3D_SM4_IMMCONST_VEC4:
 439                 src_param->reg.immconst_type = WINED3D_IMMCONST_VEC4;
 440                 memcpy(src_param->reg.immconst_data, *ptr, 4 * sizeof(DWORD));
 441                 *ptr += 4;
 442                 break;
 443
 444             default:
 445                 FIXME("Unhandled immediate constant type %#x\n", immconst_type);
 446                 break;
 447         }
 448     }
 449     else
 450     {
 451         src_param->swizzle = (token & WINED3D_SM4_SWIZZLE_MASK) >> WINED3D_SM4_SWIZZLE_SHIFT;
 452     }
 453
 454     src_param->reg.rel_addr = NULL;
 455
 456     map_register(priv, &src_param->reg);
 457 }
 458
 459 static void shader_sm4_read_dst_param(void *data, const DWORD **ptr, struct wined3d_shader_dst_param *dst_param,
 460         struct wined3d_shader_src_param *dst_rel_addr)
 461 {
 462     struct wined3d_sm4_data *priv = data;
 463     DWORD token = *(*ptr)++;
 464     enum wined3d_sm4_register_type register_type;
 465     DWORD order;
 466
 467     register_type = (token & WINED3D_SM4_REGISTER_TYPE_MASK) >> WINED3D_SM4_REGISTER_TYPE_SHIFT;
 468     if (register_type >= sizeof(register_type_table) / sizeof(*register_type_table))
 469     {
 470         FIXME("Unhandled register type %#x\n", register_type);
 471         dst_param->reg.type = WINED3DSPR_TEMP;
 472     }
 473     else
 474     {
 475         dst_param->reg.type = register_type_table[register_type];
 476     }
 477
 478     order = (token & WINED3D_SM4_REGISTER_ORDER_MASK) >> WINED3D_SM4_REGISTER_ORDER_SHIFT;
 479
 480     if (order < 1) dst_param->reg.idx = ~0U;
 481     else dst_param->reg.idx = *(*ptr)++;
 482
 483     if (order < 2) dst_param->reg.array_idx = ~0U;
 484     else dst_param->reg.array_idx = *(*ptr)++;
 485
 486     if (order > 2) FIXME("Unhandled order %u.\n", order);
 487
 488     dst_param->write_mask = (token & WINED3D_SM4_WRITEMASK_MASK) >> WINED3D_SM4_WRITEMASK_SHIFT;
 489     dst_param->modifiers = 0;
 490     dst_param->shift = 0;
 491     dst_param->reg.rel_addr = NULL;
 492
 493     map_register(priv, &dst_param->reg);
 494 }
 495
 496 static void shader_sm4_read_semantic(const DWORD **ptr, struct wined3d_shader_semantic *semantic)
 497 {
 498     FIXME("ptr %p, semantic %p stub!\n", ptr, semantic);
 499 }
 500
 501 static void shader_sm4_read_comment(const DWORD **ptr, const char **comment, UINT *comment_size)
 502 {
 503     FIXME("ptr %p, comment %p, comment_size %p stub!\n", ptr, comment, comment_size);
 504     *comment = NULL;
 505 }
 506
 507 static BOOL shader_sm4_is_end(void *data, const DWORD **ptr)
 508 {
 509     struct wined3d_sm4_data *priv = data;
 510     return *ptr == priv->end;
 511 }
 512
 513 const struct wined3d_shader_frontend sm4_shader_frontend =
 514 {
 515     shader_sm4_init,
 516     shader_sm4_free,
 517     shader_sm4_read_header,
 518     shader_sm4_read_opcode,
 519     shader_sm4_read_src_param,
 520     shader_sm4_read_dst_param,
 521     shader_sm4_read_semantic,
 522     shader_sm4_read_comment,
 523     shader_sm4_is_end,
 524 };