src/gallium/state_trackers/nine/vertexdeclaration9.c

   1 /*
   2  * Copyright 2011 Joakim Sindholt <opensource@zhasha.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 #include "vertexdeclaration9.h"
  24 #include "vertexbuffer9.h"
  25 #include "device9.h"
  26 #include "nine_helpers.h"
  27
  28 #include "pipe/p_format.h"
  29 #include "pipe/p_context.h"
  30 #include "util/u_math.h"
  31 #include "util/u_format.h"
  32 #include "util/u_box.h"
  33 #include "translate/translate.h"
  34
  35 #define DBG_CHANNEL DBG_VERTEXDECLARATION
  36
  37 static INLINE enum pipe_format decltype_format(BYTE type)
  38 {
  39     switch (type) {
  40     case D3DDECLTYPE_FLOAT1:    return PIPE_FORMAT_R32_FLOAT;
  41     case D3DDECLTYPE_FLOAT2:    return PIPE_FORMAT_R32G32_FLOAT;
  42     case D3DDECLTYPE_FLOAT3:    return PIPE_FORMAT_R32G32B32_FLOAT;
  43     case D3DDECLTYPE_FLOAT4:    return PIPE_FORMAT_R32G32B32A32_FLOAT;
  44     case D3DDECLTYPE_D3DCOLOR:  return PIPE_FORMAT_B8G8R8A8_UNORM;
  45     case D3DDECLTYPE_UBYTE4:    return PIPE_FORMAT_R8G8B8A8_USCALED;
  46     case D3DDECLTYPE_SHORT2:    return PIPE_FORMAT_R16G16_SSCALED;
  47     case D3DDECLTYPE_SHORT4:    return PIPE_FORMAT_R16G16B16A16_SSCALED;
  48     case D3DDECLTYPE_UBYTE4N:   return PIPE_FORMAT_R8G8B8A8_UNORM;
  49     case D3DDECLTYPE_SHORT2N:   return PIPE_FORMAT_R16G16_SNORM;
  50     case D3DDECLTYPE_SHORT4N:   return PIPE_FORMAT_R16G16B16A16_SNORM;
  51     case D3DDECLTYPE_USHORT2N:  return PIPE_FORMAT_R16G16_UNORM;
  52     case D3DDECLTYPE_USHORT4N:  return PIPE_FORMAT_R16G16B16A16_UNORM;
  53     case D3DDECLTYPE_UDEC3:     return PIPE_FORMAT_R10G10B10X2_USCALED;
  54     case D3DDECLTYPE_DEC3N:     return PIPE_FORMAT_R10G10B10X2_SNORM;
  55     case D3DDECLTYPE_FLOAT16_2: return PIPE_FORMAT_R16G16_FLOAT;
  56     case D3DDECLTYPE_FLOAT16_4: return PIPE_FORMAT_R16G16B16A16_FLOAT;
  57     default:
  58         assert(!"Implementation error !");
  59     }
  60     return PIPE_FORMAT_NONE;
  61 }
  62
  63 static INLINE unsigned decltype_size(BYTE type)
  64 {
  65     switch (type) {
  66     case D3DDECLTYPE_FLOAT1: return 1 * sizeof(float);
  67     case D3DDECLTYPE_FLOAT2: return 2 * sizeof(float);
  68     case D3DDECLTYPE_FLOAT3: return 3 * sizeof(float);
  69     case D3DDECLTYPE_FLOAT4: return 4 * sizeof(float);
  70     case D3DDECLTYPE_D3DCOLOR: return 1 * sizeof(DWORD);
  71     case D3DDECLTYPE_UBYTE4: return 4 * sizeof(BYTE);
  72     case D3DDECLTYPE_SHORT2: return 2 * sizeof(short);
  73     case D3DDECLTYPE_SHORT4: return 4 * sizeof(short);
  74     case D3DDECLTYPE_UBYTE4N: return 4 * sizeof(BYTE);
  75     case D3DDECLTYPE_SHORT2N: return 2 * sizeof(short);
  76     case D3DDECLTYPE_SHORT4N: return 4 * sizeof(short);
  77     case D3DDECLTYPE_USHORT2N: return 2 * sizeof(short);
  78     case D3DDECLTYPE_USHORT4N: return 4 * sizeof(short);
  79     case D3DDECLTYPE_UDEC3: return 4;
  80     case D3DDECLTYPE_DEC3N: return 4;
  81     case D3DDECLTYPE_FLOAT16_2: return 2 * 2;
  82     case D3DDECLTYPE_FLOAT16_4: return 4 * 2;
  83     default:
  84         assert(!"Implementation error !");
  85     }
  86     return 0;
  87 }
  88
  89 /* Actually, arbitrary usage index values are permitted, but a
  90  * simple lookup table won't work in that case. Let's just wait
  91  * with making this more generic until we need it.
  92  */
  93 static INLINE boolean
  94 nine_d3ddeclusage_check(unsigned usage, unsigned usage_idx)
  95 {
  96     switch (usage) {
  97     case D3DDECLUSAGE_POSITIONT:
  98     case D3DDECLUSAGE_TESSFACTOR:
  99     case D3DDECLUSAGE_DEPTH:
 100     case D3DDECLUSAGE_NORMAL:
 101     case D3DDECLUSAGE_TANGENT:
 102     case D3DDECLUSAGE_BINORMAL:
 103     case D3DDECLUSAGE_POSITION:
 104     case D3DDECLUSAGE_BLENDWEIGHT:
 105     case D3DDECLUSAGE_BLENDINDICES:
 106     case D3DDECLUSAGE_COLOR:
 107         return TRUE;
 108     case D3DDECLUSAGE_PSIZE:
 109     case D3DDECLUSAGE_FOG:
 110     case D3DDECLUSAGE_SAMPLE:
 111         return usage_idx <= 0;
 112     case D3DDECLUSAGE_TEXCOORD:
 113         return usage_idx <= 15;
 114     default:
 115         return FALSE;
 116     }
 117 }
 118
 119 #define NINE_DECLUSAGE_CASE0(n) case D3DDECLUSAGE_##n: return NINE_DECLUSAGE_##n
 120 #define NINE_DECLUSAGE_CASEi(n) case D3DDECLUSAGE_##n: return NINE_DECLUSAGE_i(n, usage_idx)
 121 uint16_t
 122 nine_d3d9_to_nine_declusage(unsigned usage, unsigned usage_idx)
 123 {
 124     if (!nine_d3ddeclusage_check(usage, usage_idx))
 125         ERR("D3DDECLUSAGE_%u[%u]\n",usage,usage_idx);
 126     assert(nine_d3ddeclusage_check(usage, usage_idx));
 127     switch (usage) {
 128     NINE_DECLUSAGE_CASEi(POSITION);
 129     NINE_DECLUSAGE_CASEi(BLENDWEIGHT);
 130     NINE_DECLUSAGE_CASEi(BLENDINDICES);
 131     NINE_DECLUSAGE_CASEi(NORMAL);
 132     NINE_DECLUSAGE_CASE0(PSIZE);
 133     NINE_DECLUSAGE_CASEi(TEXCOORD);
 134     NINE_DECLUSAGE_CASEi(TANGENT);
 135     NINE_DECLUSAGE_CASEi(BINORMAL);
 136     NINE_DECLUSAGE_CASE0(TESSFACTOR);
 137     NINE_DECLUSAGE_CASEi(POSITIONT);
 138     NINE_DECLUSAGE_CASEi(COLOR);
 139     NINE_DECLUSAGE_CASE0(DEPTH);
 140     NINE_DECLUSAGE_CASE0(FOG);
 141     NINE_DECLUSAGE_CASE0(SAMPLE);
 142     default:
 143         assert(!"Invalid DECLUSAGE.");
 144         return NINE_DECLUSAGE_NONE;
 145     }
 146 }
 147
 148 static const char *nine_declusage_names[] =
 149 {
 150     [NINE_DECLUSAGE_POSITION]        = "POSITION",
 151     [NINE_DECLUSAGE_BLENDWEIGHT]     = "BLENDWEIGHT",
 152     [NINE_DECLUSAGE_BLENDINDICES]    = "BLENDINDICES",
 153     [NINE_DECLUSAGE_NORMAL]          = "NORMAL",
 154     [NINE_DECLUSAGE_PSIZE]           = "PSIZE",
 155     [NINE_DECLUSAGE_TEXCOORD]        = "TEXCOORD",
 156     [NINE_DECLUSAGE_TANGENT]         = "TANGENT",
 157     [NINE_DECLUSAGE_BINORMAL]        = "BINORMAL",
 158     [NINE_DECLUSAGE_TESSFACTOR]      = "TESSFACTOR",
 159     [NINE_DECLUSAGE_POSITIONT]       = "POSITIONT",
 160     [NINE_DECLUSAGE_COLOR]           = "DIFFUSE",
 161     [NINE_DECLUSAGE_DEPTH]           = "DEPTH",
 162     [NINE_DECLUSAGE_FOG]             = "FOG",
 163     [NINE_DECLUSAGE_NONE]            = "(NONE)",
 164 };
 165 static INLINE const char *
 166 nine_declusage_name(unsigned ndcl)
 167 {
 168     return nine_declusage_names[ndcl % NINE_DECLUSAGE_COUNT];
 169 }
 170
 171 HRESULT
 172 NineVertexDeclaration9_ctor( struct NineVertexDeclaration9 *This,
 173                              struct NineUnknownParams *pParams,
 174                              const D3DVERTEXELEMENT9 *pElements )
 175 {
 176     const D3DCAPS9 *caps;
 177     unsigned i;
 178
 179     DBG("This=%p pParams=%p pElements=%p\n", This, pParams, pElements);
 180
 181     HRESULT hr = NineUnknown_ctor(&This->base, pParams);
 182     if (FAILED(hr)) { return hr; }
 183
 184     /* wine */
 185     for (This->nelems = 0;
 186          pElements[This->nelems].Stream != 0xFF;
 187          ++This->nelems)
 188         user_assert(pElements[This->nelems].Type != D3DDECLTYPE_UNUSED, E_FAIL);
 189
 190     caps = NineDevice9_GetCaps(This->base.device);
 191     user_assert(This->nelems <= caps->MaxStreams, D3DERR_INVALIDCALL);
 192
 193     This->decls = CALLOC(This->nelems+1, sizeof(D3DVERTEXELEMENT9));
 194     This->elems = CALLOC(This->nelems, sizeof(struct pipe_vertex_element));
 195     This->usage_map = CALLOC(This->nelems, sizeof(uint16_t));
 196     if (!This->decls || !This->elems || !This->usage_map) { return E_OUTOFMEMORY; }
 197     memcpy(This->decls, pElements, sizeof(D3DVERTEXELEMENT9)*(This->nelems+1));
 198
 199     for (i = 0; i < This->nelems; ++i) {
 200         uint16_t usage = nine_d3d9_to_nine_declusage(This->decls[i].Usage,
 201                                                      This->decls[i].UsageIndex);
 202         This->usage_map[i] = usage;
 203
 204         This->elems[i].src_offset = This->decls[i].Offset;
 205         This->elems[i].instance_divisor = 0;
 206         This->elems[i].vertex_buffer_index = This->decls[i].Stream;
 207         This->elems[i].src_format = decltype_format(This->decls[i].Type);
 208         /* XXX Remember Method (tesselation), Usage, UsageIndex */
 209
 210         DBG("VERTEXELEMENT[%u]: Stream=%u Offset=%u Type=%s DeclUsage=%s%d\n", i,
 211             This->decls[i].Stream,
 212             This->decls[i].Offset,
 213             util_format_name(This->elems[i].src_format),
 214             nine_declusage_name(usage),
 215             usage / NINE_DECLUSAGE_COUNT);
 216     }
 217
 218     return D3D_OK;
 219 }
 220
 221 void
 222 NineVertexDeclaration9_dtor( struct NineVertexDeclaration9 *This )
 223 {
 224     FREE(This->decls);
 225     FREE(This->elems);
 226     FREE(This->usage_map);
 227
 228     NineUnknown_dtor(&This->base);
 229 }
 230
 231 HRESULT WINAPI
 232 NineVertexDeclaration9_GetDeclaration( struct NineVertexDeclaration9 *This,
 233                                        D3DVERTEXELEMENT9 *pElement,
 234                                        UINT *pNumElements )
 235 {
 236     if (!pElement) {
 237         user_assert(pNumElements, D3DERR_INVALIDCALL);
 238         *pNumElements = This->nelems+1;
 239         return D3D_OK;
 240     }
 241     if (pNumElements) { *pNumElements = This->nelems+1; }
 242     memcpy(pElement, This->decls, sizeof(D3DVERTEXELEMENT9)*(This->nelems+1));
 243     return D3D_OK;
 244 }
 245
 246 IDirect3DVertexDeclaration9Vtbl NineVertexDeclaration9_vtable = {
 247     (void *)NineUnknown_QueryInterface,
 248     (void *)NineUnknown_AddRef,
 249     (void *)NineUnknown_Release,
 250     (void *)NineUnknown_GetDevice, /* actually part of VertexDecl9 iface */
 251     (void *)NineVertexDeclaration9_GetDeclaration
 252 };
 253
 254 static const GUID *NineVertexDeclaration9_IIDs[] = {
 255     &IID_IDirect3DVertexDeclaration9,
 256     &IID_IUnknown,
 257     NULL
 258 };
 259
 260 HRESULT
 261 NineVertexDeclaration9_new( struct NineDevice9 *pDevice,
 262                             const D3DVERTEXELEMENT9 *pElements,
 263                             struct NineVertexDeclaration9 **ppOut )
 264 {
 265     NINE_DEVICE_CHILD_NEW(VertexDeclaration9, ppOut, /* args */ pDevice, pElements);
 266 }
 267
 268 HRESULT
 269 NineVertexDeclaration9_new_from_fvf( struct NineDevice9 *pDevice,
 270                                      DWORD FVF,
 271                                      struct NineVertexDeclaration9 **ppOut )
 272 {
 273     D3DVERTEXELEMENT9 elems[16], decl_end = D3DDECL_END();
 274     unsigned texcount, i, betas, nelems = 0;
 275     BYTE beta_index = 0xFF;
 276
 277     switch (FVF & D3DFVF_POSITION_MASK) {
 278         case D3DFVF_XYZ: /* simple XYZ */
 279         case D3DFVF_XYZB1:
 280         case D3DFVF_XYZB2:
 281         case D3DFVF_XYZB3:
 282         case D3DFVF_XYZB4:
 283         case D3DFVF_XYZB5: /* XYZ with beta values */
 284             elems[nelems].Type = D3DDECLTYPE_FLOAT3;
 285             elems[nelems].Usage = D3DDECLUSAGE_POSITION;
 286             elems[nelems].UsageIndex = 0;
 287             ++nelems;
 288             /* simple XYZ has no beta values. break. */
 289             if ((FVF & D3DFVF_POSITION_MASK) == D3DFVF_XYZ) { break; }
 290
 291             betas = (((FVF & D3DFVF_XYZB5)-D3DFVF_XYZB1)>>1)+1;
 292             if (FVF & D3DFVF_LASTBETA_D3DCOLOR) {
 293                 beta_index = D3DDECLTYPE_D3DCOLOR;
 294             } else if (FVF & D3DFVF_LASTBETA_UBYTE4) {
 295                 beta_index = D3DDECLTYPE_UBYTE4;
 296             } else if ((FVF & D3DFVF_XYZB5) == D3DFVF_XYZB5) {
 297                 beta_index = D3DDECLTYPE_FLOAT1;
 298             }
 299             if (beta_index != 0xFF) { --betas; }
 300
 301             if (betas > 0) {
 302                 switch (betas) {
 303                     case 1: elems[nelems].Type = D3DDECLTYPE_FLOAT1; break;
 304                     case 2: elems[nelems].Type = D3DDECLTYPE_FLOAT2; break;
 305                     case 3: elems[nelems].Type = D3DDECLTYPE_FLOAT3; break;
 306                     case 4: elems[nelems].Type = D3DDECLTYPE_FLOAT4; break;
 307                     default:
 308                         assert(!"Implementation error!");
 309                 }
 310                 elems[nelems].Usage = D3DDECLUSAGE_BLENDWEIGHT;
 311                 elems[nelems].UsageIndex = 0;
 312                 ++nelems;
 313             }
 314
 315             if (beta_index != 0xFF) {
 316                 elems[nelems].Type = beta_index;
 317                 elems[nelems].Usage = D3DDECLUSAGE_BLENDINDICES;
 318                 elems[nelems].UsageIndex = 0;
 319                 ++nelems;
 320             }
 321             break;
 322
 323         case D3DFVF_XYZW: /* simple XYZW */
 324         case D3DFVF_XYZRHW: /* pretransformed XYZW */
 325             elems[nelems].Type = D3DDECLTYPE_FLOAT4;
 326             elems[nelems].Usage =
 327                 ((FVF & D3DFVF_POSITION_MASK) == D3DFVF_XYZW) ?
 328                 D3DDECLUSAGE_POSITION : D3DDECLUSAGE_POSITIONT;
 329             elems[nelems].UsageIndex = 0;
 330             ++nelems;
 331             break;
 332
 333         default:
 334             (void)user_error(!"Position doesn't match any known combination");
 335     }
 336
 337     /* normals, psize and colors */
 338     if (FVF & D3DFVF_NORMAL) {
 339         elems[nelems].Type = D3DDECLTYPE_FLOAT3;
 340         elems[nelems].Usage = D3DDECLUSAGE_NORMAL;
 341         elems[nelems].UsageIndex = 0;
 342         ++nelems;
 343     }
 344     if (FVF & D3DFVF_PSIZE) {
 345         elems[nelems].Type = D3DDECLTYPE_FLOAT1;
 346         elems[nelems].Usage = D3DDECLUSAGE_PSIZE;
 347         elems[nelems].UsageIndex = 0;
 348         ++nelems;
 349     }
 350     if (FVF & D3DFVF_DIFFUSE) {
 351         elems[nelems].Type = D3DDECLTYPE_D3DCOLOR;
 352         elems[nelems].Usage = D3DDECLUSAGE_COLOR;
 353         elems[nelems].UsageIndex = 0;
 354         ++nelems;
 355     }
 356     if (FVF & D3DFVF_SPECULAR) {
 357         elems[nelems].Type = D3DDECLTYPE_D3DCOLOR;
 358         elems[nelems].Usage = D3DDECLUSAGE_COLOR;
 359         elems[nelems].UsageIndex = 1;
 360         ++nelems;
 361     }
 362
 363     /* textures */
 364     texcount = (FVF & D3DFVF_TEXCOUNT_MASK) >> D3DFVF_TEXCOUNT_SHIFT;
 365     if (user_error(texcount <= 8)) { texcount = 8; }
 366
 367     for (i = 0; i < texcount; ++i) {
 368         switch ((FVF >> (16+i*2)) & 0x3) {
 369             case D3DFVF_TEXTUREFORMAT1:
 370                 elems[nelems].Type = D3DDECLTYPE_FLOAT1;
 371                 break;
 372
 373             case D3DFVF_TEXTUREFORMAT2:
 374                 elems[nelems].Type = D3DDECLTYPE_FLOAT2;
 375                 break;
 376
 377             case D3DFVF_TEXTUREFORMAT3:
 378                 elems[nelems].Type = D3DDECLTYPE_FLOAT3;
 379                 break;
 380
 381             case D3DFVF_TEXTUREFORMAT4:
 382                 elems[nelems].Type = D3DDECLTYPE_FLOAT4;
 383                 break;
 384
 385             default:
 386                 assert(!"Implementation error!");
 387         }
 388         elems[nelems].Usage = D3DDECLUSAGE_TEXCOORD;
 389         elems[nelems].UsageIndex = i;
 390         ++nelems;
 391     }
 392
 393     /* fill out remaining data */
 394     for (i = 0; i < nelems; ++i) {
 395         elems[i].Stream = 0;
 396         elems[i].Offset = (i == 0) ? 0 : (elems[i-1].Offset +
 397                                           decltype_size(elems[i-1].Type));
 398         elems[i].Method = D3DDECLMETHOD_DEFAULT;
 399     }
 400     elems[nelems++] = decl_end;
 401
 402     NINE_DEVICE_CHILD_NEW(VertexDeclaration9, ppOut, /* args */ pDevice, elems);
 403 }
 404
 405 /* ProcessVertices runs stream output into a temporary buffer to capture
 406  * all outputs.
 407  * Now we have to convert them to the format and order set by the vertex
 408  * declaration, for which we use u_translate.
 409  * This is necessary if the vertex declaration contains elements using a
 410  * non float32 format, because stream output only supports f32/u32/s32.
 411  */
 412 HRESULT
 413 NineVertexDeclaration9_ConvertStreamOutput(
 414     struct NineVertexDeclaration9 *This,
 415     struct NineVertexBuffer9 *pDstBuf,
 416     UINT DestIndex,
 417     UINT VertexCount,
 418     struct pipe_resource *pSrcBuf,
 419     const struct pipe_stream_output_info *so )
 420 {
 421     struct pipe_context *pipe = This->base.device->pipe;
 422     struct pipe_transfer *transfer = NULL;
 423     struct translate *translate;
 424     struct translate_key transkey;
 425     struct pipe_box box;
 426     HRESULT hr;
 427     unsigned i;
 428     void *src_map;
 429     void *dst_map;
 430
 431     DBG("This=%p pDstBuf=%p DestIndex=%u VertexCount=%u pSrcBuf=%p so=%p\n",
 432         This, pDstBuf, DestIndex, VertexCount, pSrcBuf, so);
 433
 434     transkey.output_stride = 0;
 435     for (i = 0; i < This->nelems; ++i) {
 436         enum pipe_format format;
 437
 438         switch (so->output[i].num_components) {
 439         case 1: format = PIPE_FORMAT_R32_FLOAT; break;
 440         case 2: format = PIPE_FORMAT_R32G32_FLOAT; break;
 441         case 3: format = PIPE_FORMAT_R32G32B32_FLOAT; break;
 442         default:
 443             assert(so->output[i].num_components == 4);
 444             format = PIPE_FORMAT_R32G32B32A32_FLOAT;
 445             break;
 446         }
 447         transkey.element[i].type = TRANSLATE_ELEMENT_NORMAL;
 448         transkey.element[i].input_format = format;
 449         transkey.element[i].input_buffer = 0;
 450         transkey.element[i].input_offset = so->output[i].dst_offset * 4;
 451         transkey.element[i].instance_divisor = 0;
 452
 453         transkey.element[i].output_format = This->elems[i].src_format;
 454         transkey.element[i].output_offset = This->elems[i].src_offset;
 455         transkey.output_stride +=
 456             util_format_get_blocksize(This->elems[i].src_format);
 457
 458         assert(!(transkey.output_stride & 3));
 459     }
 460     transkey.nr_elements = This->nelems;
 461
 462     translate = translate_create(&transkey);
 463     if (!translate)
 464         return E_OUTOFMEMORY;
 465
 466     hr = NineVertexBuffer9_Lock(pDstBuf,
 467                                 transkey.output_stride * DestIndex,
 468                                 transkey.output_stride * VertexCount,
 469                                 &dst_map, D3DLOCK_DISCARD);
 470     if (FAILED(hr))
 471         goto out;
 472
 473     src_map = pipe->transfer_map(pipe, pSrcBuf, 0, PIPE_TRANSFER_READ, &box,
 474                                  &transfer);
 475     if (!src_map) {
 476         hr = D3DERR_DRIVERINTERNALERROR;
 477         goto out;
 478     }
 479     translate->set_buffer(translate, 0, src_map, so->stride[0], ~0);
 480
 481     translate->run(translate, 0, VertexCount, 0, 0, dst_map);
 482
 483     NineVertexBuffer9_Unlock(pDstBuf);
 484 out:
 485     if (transfer)
 486         pipe->transfer_unmap(pipe, transfer);
 487     translate->release(translate); /* TODO: cache these */
 488     return hr;
 489 }