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

   1 /*
   2  * WINED3D draw functions
   3  *
   4  * Copyright 2002-2004 Jason Edmeades
   5  * Copyright 2002-2004 Raphael Junqueira
   6  * Copyright 2004 Christian Costa
   7  * Copyright 2005 Oliver Stieber
   8  * Copyright 2006 Henri Verbeet
   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 "wined3d_private.h"
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL(d3d_draw);
  30 #define GLINFO_LOCATION This->adapter->gl_info
  31
  32 #include <stdio.h>
  33 #include <math.h>
  34
  35 #if 0 /* TODO */
  36 extern IWineD3DVertexShaderImpl*            VertexShaders[64];
  37 extern IWineD3DVertexDeclarationImpl*       VertexShaderDeclarations[64];
  38 extern IWineD3DPixelShaderImpl*             PixelShaders[64];
  39
  40 #undef GL_VERSION_1_4 /* To be fixed, caused by mesa headers */
  41 #endif
  42
  43 /* Issues the glBegin call for gl given the primitive type and count */
  44 static DWORD primitiveToGl(WINED3DPRIMITIVETYPE PrimitiveType,
  45                     DWORD            NumPrimitives,
  46                     GLenum          *primType)
  47 {
  48     DWORD   NumVertexes = NumPrimitives;
  49
  50     switch (PrimitiveType) {
  51     case WINED3DPT_POINTLIST:
  52         TRACE("POINTS\n");
  53         *primType   = GL_POINTS;
  54         NumVertexes = NumPrimitives;
  55         break;
  56
  57     case WINED3DPT_LINELIST:
  58         TRACE("LINES\n");
  59         *primType   = GL_LINES;
  60         NumVertexes = NumPrimitives * 2;
  61         break;
  62
  63     case WINED3DPT_LINESTRIP:
  64         TRACE("LINE_STRIP\n");
  65         *primType   = GL_LINE_STRIP;
  66         NumVertexes = NumPrimitives + 1;
  67         break;
  68
  69     case WINED3DPT_TRIANGLELIST:
  70         TRACE("TRIANGLES\n");
  71         *primType   = GL_TRIANGLES;
  72         NumVertexes = NumPrimitives * 3;
  73         break;
  74
  75     case WINED3DPT_TRIANGLESTRIP:
  76         TRACE("TRIANGLE_STRIP\n");
  77         *primType   = GL_TRIANGLE_STRIP;
  78         NumVertexes = NumPrimitives + 2;
  79         break;
  80
  81     case WINED3DPT_TRIANGLEFAN:
  82         TRACE("TRIANGLE_FAN\n");
  83         *primType   = GL_TRIANGLE_FAN;
  84         NumVertexes = NumPrimitives + 2;
  85         break;
  86
  87     default:
  88         FIXME("Unhandled primitive\n");
  89         *primType    = GL_POINTS;
  90         break;
  91     }
  92     return NumVertexes;
  93 }
  94
  95 static BOOL fixed_get_input(
  96     BYTE usage, BYTE usage_idx,
  97     unsigned int* regnum) {
  98
  99     *regnum = -1;
 100
 101     /* Those positions must have the order in the
 102      * named part of the strided data */
 103
 104     if ((usage == WINED3DDECLUSAGE_POSITION || usage == WINED3DDECLUSAGE_POSITIONT) && usage_idx == 0)
 105         *regnum = 0;
 106     else if (usage == WINED3DDECLUSAGE_BLENDWEIGHT && usage_idx == 0)
 107         *regnum = 1;
 108     else if (usage == WINED3DDECLUSAGE_BLENDINDICES && usage_idx == 0)
 109         *regnum = 2;
 110     else if (usage == WINED3DDECLUSAGE_NORMAL && usage_idx == 0)
 111         *regnum = 3;
 112     else if (usage == WINED3DDECLUSAGE_PSIZE && usage_idx == 0)
 113         *regnum = 4;
 114     else if (usage == WINED3DDECLUSAGE_COLOR && usage_idx == 0)
 115         *regnum = 5;
 116     else if (usage == WINED3DDECLUSAGE_COLOR && usage_idx == 1)
 117         *regnum = 6;
 118     else if (usage == WINED3DDECLUSAGE_TEXCOORD && usage_idx < WINED3DDP_MAXTEXCOORD)
 119         *regnum = 7 + usage_idx;
 120     else if ((usage == WINED3DDECLUSAGE_POSITION || usage == WINED3DDECLUSAGE_POSITIONT) && usage_idx == 1)
 121         *regnum = 7 + WINED3DDP_MAXTEXCOORD;
 122     else if (usage == WINED3DDECLUSAGE_NORMAL && usage_idx == 1)
 123         *regnum = 8 + WINED3DDP_MAXTEXCOORD;
 124     else if (usage == WINED3DDECLUSAGE_TANGENT && usage_idx == 0)
 125         *regnum = 9 + WINED3DDP_MAXTEXCOORD;
 126     else if (usage == WINED3DDECLUSAGE_BINORMAL && usage_idx == 0)
 127         *regnum = 10 + WINED3DDP_MAXTEXCOORD;
 128     else if (usage == WINED3DDECLUSAGE_TESSFACTOR && usage_idx == 0)
 129         *regnum = 11 + WINED3DDP_MAXTEXCOORD;
 130     else if (usage == WINED3DDECLUSAGE_FOG && usage_idx == 0)
 131         *regnum = 12 + WINED3DDP_MAXTEXCOORD;
 132     else if (usage == WINED3DDECLUSAGE_DEPTH && usage_idx == 0)
 133         *regnum = 13 + WINED3DDP_MAXTEXCOORD;
 134     else if (usage == WINED3DDECLUSAGE_SAMPLE && usage_idx == 0)
 135         *regnum = 14 + WINED3DDP_MAXTEXCOORD;
 136
 137     if (*regnum == -1) {
 138         FIXME("Unsupported input stream [usage=%s, usage_idx=%u]\n",
 139             debug_d3ddeclusage(usage), usage_idx);
 140         return FALSE;
 141     }
 142     return TRUE;
 143 }
 144
 145 void primitiveDeclarationConvertToStridedData(
 146      IWineD3DDevice *iface,
 147      BOOL useVertexShaderFunction,
 148      WineDirect3DVertexStridedData *strided,
 149      BOOL *fixup) {
 150
 151      /* We need to deal with frequency data!*/
 152
 153     BYTE  *data    = NULL;
 154     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
 155     IWineD3DVertexDeclarationImpl* vertexDeclaration = (IWineD3DVertexDeclarationImpl *)This->stateBlock->vertexDecl;
 156     int i;
 157     WINED3DVERTEXELEMENT *element;
 158     DWORD stride;
 159     DWORD numPreloadStreams = This->stateBlock->streamIsUP ? 0 : vertexDeclaration->num_streams;
 160     DWORD *streams = vertexDeclaration->streams;
 161
 162     /* Check for transformed vertices, disable vertex shader if present */
 163     strided->u.s.position_transformed = vertexDeclaration->position_transformed;
 164     if(vertexDeclaration->position_transformed) {
 165         useVertexShaderFunction = FALSE;
 166     }
 167
 168     /* Translate the declaration into strided data */
 169     for (i = 0 ; i < vertexDeclaration->declarationWNumElements - 1; ++i) {
 170         GLint streamVBO = 0;
 171         BOOL stride_used;
 172         unsigned int idx;
 173
 174         element = vertexDeclaration->pDeclarationWine + i;
 175         TRACE("%p Element %p (%d of %d)\n", vertexDeclaration->pDeclarationWine,
 176             element,  i + 1, vertexDeclaration->declarationWNumElements - 1);
 177
 178         if (This->stateBlock->streamSource[element->Stream] == NULL)
 179             continue;
 180
 181         stride  = This->stateBlock->streamStride[element->Stream];
 182         if (This->stateBlock->streamIsUP) {
 183             TRACE("Stream is up %d, %p\n", element->Stream, This->stateBlock->streamSource[element->Stream]);
 184             streamVBO = 0;
 185             data    = (BYTE *)This->stateBlock->streamSource[element->Stream];
 186         } else {
 187             TRACE("Stream isn't up %d, %p\n", element->Stream, This->stateBlock->streamSource[element->Stream]);
 188             data    = IWineD3DVertexBufferImpl_GetMemory(This->stateBlock->streamSource[element->Stream], 0, &streamVBO);
 189
 190             /* Can't use vbo's if the base vertex index is negative. OpenGL doesn't accept negative offsets
 191              * (or rather offsets bigger than the vbo, because the pointer is unsigned), so use system memory
 192              * sources. In most sane cases the pointer - offset will still be > 0, otherwise it will wrap
 193              * around to some big value. Hope that with the indices, the driver wraps it back internally. If
 194              * not, drawStridedSlow is needed, including a vertex buffer path.
 195              */
 196             if(This->stateBlock->loadBaseVertexIndex < 0) {
 197                 WARN("loadBaseVertexIndex is < 0 (%d), not using vbos\n", This->stateBlock->loadBaseVertexIndex);
 198                 streamVBO = 0;
 199                 data = ((IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[element->Stream])->resource.allocatedMemory;
 200                 if((UINT_PTR)data < -This->stateBlock->loadBaseVertexIndex * stride) {
 201                     FIXME("System memory vertex data load offset is negative!\n");
 202                 }
 203             }
 204
 205             if(fixup) {
 206                 if( streamVBO != 0) *fixup = TRUE;
 207                 else if(*fixup && !useVertexShaderFunction &&
 208                        (element->Usage == WINED3DDECLUSAGE_COLOR ||
 209                         element->Usage == WINED3DDECLUSAGE_POSITIONT)) {
 210                     static BOOL warned = FALSE;
 211                     if(!warned) {
 212                         /* This may be bad with the fixed function pipeline */
 213                         FIXME("Missing vbo streams with unfixed colors or transformed position, expect problems\n");
 214                         warned = TRUE;
 215                     }
 216                 }
 217             }
 218         }
 219         data += element->Offset;
 220
 221         TRACE("Offset %d Stream %d UsageIndex %d\n", element->Offset, element->Stream, element->UsageIndex);
 222
 223         if (useVertexShaderFunction)
 224             stride_used = vshader_get_input(This->stateBlock->vertexShader,
 225                 element->Usage, element->UsageIndex, &idx);
 226         else
 227             stride_used = fixed_get_input(element->Usage, element->UsageIndex, &idx);
 228
 229         if (stride_used) {
 230             TRACE("Loaded %s array %u [usage=%s, usage_idx=%u, "
 231                     "stream=%u, offset=%u, stride=%u, type=%s, VBO=%u]\n",
 232                     useVertexShaderFunction? "shader": "fixed function", idx,
 233                     debug_d3ddeclusage(element->Usage), element->UsageIndex,
 234                     element->Stream, element->Offset, stride, debug_d3ddecltype(element->Type), streamVBO);
 235
 236             strided->u.input[idx].lpData = data;
 237             strided->u.input[idx].dwType = element->Type;
 238             strided->u.input[idx].dwStride = stride;
 239             strided->u.input[idx].VBO = streamVBO;
 240             strided->u.input[idx].streamNo = element->Stream;
 241         }
 242     }
 243     /* Now call PreLoad on all the vertex buffers. In the very rare case
 244      * that the buffers stopps converting PreLoad will dirtify the VDECL again.
 245      * The vertex buffer can now use the strided structure in the device instead of finding its
 246      * own again.
 247      *
 248      * NULL streams won't be recorded in the array, UP streams won't be either. A stream is only
 249      * once in there.
 250      */
 251     for(i=0; i < numPreloadStreams; i++) {
 252         IWineD3DVertexBuffer *vb = This->stateBlock->streamSource[streams[i]];
 253         if(vb) {
 254             IWineD3DVertexBuffer_PreLoad(vb);
 255         }
 256     }
 257 }
 258
 259 static void drawStridedFast(IWineD3DDevice *iface,UINT numberOfVertices, GLenum glPrimitiveType,
 260                      const void *idxData, short idxSize, ULONG minIndex, ULONG startIdx, ULONG startVertex) {
 261     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
 262
 263     if (idxSize != 0 /* This crashes sometimes!*/) {
 264         TRACE("(%p) : glElements(%x, %d, %d, ...)\n", This, glPrimitiveType, numberOfVertices, minIndex);
 265         idxData = idxData == (void *)-1 ? NULL : idxData;
 266 #if 1
 267         glDrawElements(glPrimitiveType, numberOfVertices, idxSize == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
 268                      (const char *)idxData+(idxSize * startIdx));
 269         checkGLcall("glDrawElements");
 270 #else /* using drawRangeElements may be faster */
 271
 272         glDrawRangeElements(glPrimitiveType, minIndex, minIndex + numberOfVertices - 1, numberOfVertices,
 273                       idxSize == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
 274                       (const char *)idxData+(idxSize * startIdx));
 275         checkGLcall("glDrawRangeElements");
 276 #endif
 277
 278     } else {
 279
 280         /* Note first is now zero as we shuffled along earlier */
 281         TRACE("(%p) : glDrawArrays(%x, 0, %d)\n", This, glPrimitiveType, numberOfVertices);
 282         glDrawArrays(glPrimitiveType, startVertex, numberOfVertices);
 283         checkGLcall("glDrawArrays");
 284
 285     }
 286
 287     return;
 288 }
 289
 290 /*
 291  * Actually draw using the supplied information.
 292  * Slower GL version which extracts info about each vertex in turn
 293  */
 294
 295 static void drawStridedSlow(IWineD3DDevice *iface, WineDirect3DVertexStridedData *sd,
 296                      UINT NumVertexes, GLenum glPrimType,
 297                      const void *idxData, short idxSize, ULONG minIndex, ULONG startIdx, ULONG startVertex) {
 298
 299     unsigned int               textureNo    = 0;
 300     const WORD                *pIdxBufS     = NULL;
 301     const DWORD               *pIdxBufL     = NULL;
 302     LONG                       vx_index;
 303     DWORD diffuseColor = 0xFFFFFFFF;       /* Diffuse Color              */
 304     DWORD specularColor = 0;               /* Specular Color             */
 305     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
 306     UINT *streamOffset = This->stateBlock->streamOffset;
 307     long                      SkipnStrides = startVertex + This->stateBlock->loadBaseVertexIndex;
 308     BOOL                      pixelShader = use_ps(This);
 309
 310     BYTE *texCoords[WINED3DDP_MAXTEXCOORD];
 311     BYTE *diffuse = NULL, *specular = NULL, *normal = NULL, *position = NULL;
 312
 313     TRACE("Using slow vertex array code\n");
 314
 315     /* Variable Initialization */
 316     if (idxSize != 0) {
 317         /* Immediate mode drawing can't make use of indices in a vbo - get the data from the index buffer.
 318          * If the index buffer has no vbo(not supported or other reason), or with user pointer drawing
 319          * idxData will be != NULL
 320          */
 321         if(idxData == NULL) {
 322             idxData = ((IWineD3DIndexBufferImpl *) This->stateBlock->pIndexData)->resource.allocatedMemory;
 323         }
 324
 325         if (idxSize == 2) pIdxBufS = (const WORD *) idxData;
 326         else pIdxBufL = (const DWORD *) idxData;
 327     }
 328
 329     /* Adding the stream offset once is cheaper than doing it every iteration. Do not modify the strided data, it is a pointer
 330      * to the strided Data in the device and might be needed intact on the next draw
 331      */
 332     for (textureNo = 0; textureNo < GL_LIMITS(texture_stages); ++textureNo) {
 333         if(sd->u.s.texCoords[textureNo].lpData) {
 334             texCoords[textureNo] = sd->u.s.texCoords[textureNo].lpData + streamOffset[sd->u.s.texCoords[textureNo].streamNo];
 335         } else {
 336             texCoords[textureNo] = NULL;
 337         }
 338     }
 339     if(sd->u.s.diffuse.lpData) {
 340         diffuse = sd->u.s.diffuse.lpData + streamOffset[sd->u.s.diffuse.streamNo];
 341     }
 342     if(sd->u.s.specular.lpData) {
 343         specular = sd->u.s.specular.lpData + streamOffset[sd->u.s.specular.streamNo];
 344     }
 345     if(sd->u.s.normal.lpData) {
 346         normal = sd->u.s.normal.lpData + streamOffset[sd->u.s.normal.streamNo];
 347     }
 348     if(sd->u.s.position.lpData) {
 349         position = sd->u.s.position.lpData + streamOffset[sd->u.s.position.streamNo];
 350     }
 351
 352     /* The texture coordinate types are not so easy to map into a common function signature - we're
 353      * not using the vector functions here
 354      */
 355     if(FIXME_ON(d3d_draw)) {
 356         for (textureNo = 0; textureNo < GL_LIMITS(textures); ++textureNo) {
 357             DWORD type = sd->u.s.texCoords[textureNo].dwType;
 358             if (sd->u.s.texCoords[textureNo].lpData &&
 359                 type != WINED3DDECLTYPE_FLOAT1 &&
 360                 type != WINED3DDECLTYPE_FLOAT2 &&
 361                 type != WINED3DDECLTYPE_FLOAT3 &&
 362                 type != WINED3DDECLTYPE_FLOAT4) {
 363                 FIXME("Implement fixed function texture coordinates from %s\n", debug_d3ddecltype(type));
 364             }
 365         }
 366         if(specular && This->stateBlock->renderState[WINED3DRS_FOGENABLE] &&
 367            (This->stateBlock->renderState[WINED3DRS_FOGVERTEXMODE] == WINED3DFOG_NONE || sd->u.s.position_transformed )&&
 368            This->stateBlock->renderState[WINED3DRS_FOGTABLEMODE] == WINED3DFOG_NONE) {
 369             if(GL_SUPPORT(EXT_FOG_COORD) && sd->u.s.specular.dwType != WINED3DDECLTYPE_D3DCOLOR) {
 370                 FIXME("Implement fog coordinates from %s\n", debug_d3ddecltype(sd->u.s.specular.dwType));
 371             }
 372         }
 373         if(This->activeContext->num_untracked_materials && sd->u.s.diffuse.dwType != WINED3DDECLTYPE_D3DCOLOR) {
 374             FIXME("Implement diffuse color tracking from %s\n", debug_d3ddecltype(sd->u.s.diffuse.dwType));
 375         }
 376     }
 377
 378     /* Start drawing in GL */
 379     VTRACE(("glBegin(%x)\n", glPrimType));
 380     glBegin(glPrimType);
 381
 382     /* Default settings for data that is not passed */
 383     if (sd->u.s.normal.lpData == NULL) {
 384         glNormal3f(0, 0, 0);
 385     }
 386     if(sd->u.s.diffuse.lpData == NULL) {
 387         glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 388     }
 389     if(sd->u.s.specular.lpData == NULL) {
 390         if (GL_SUPPORT(EXT_SECONDARY_COLOR)) {
 391             GL_EXTCALL(glSecondaryColor3fEXT)(0, 0, 0);
 392         }
 393     }
 394
 395     /* We shouldn't start this function if any VBO is involved. Should I put a safety check here?
 396      * Guess it's not necessary(we crash then anyway) and would only eat CPU time
 397      */
 398
 399     /* For each primitive */
 400     for (vx_index = 0; vx_index < NumVertexes; ++vx_index) {
 401
 402         /* Initialize diffuse color */
 403         diffuseColor = 0xFFFFFFFF;
 404
 405         /* Blending data and Point sizes are not supported by this function. They are not supported by the fixed
 406          * function pipeline at all. A Fixme for them is printed after decoding the vertex declaration
 407          */
 408
 409         /* For indexed data, we need to go a few more strides in */
 410         if (idxData != NULL) {
 411
 412             /* Indexed so work out the number of strides to skip */
 413             if (idxSize == 2) {
 414                 VTRACE(("Idx for vertex %d = %d\n", vx_index, pIdxBufS[startIdx+vx_index]));
 415                 SkipnStrides = pIdxBufS[startIdx + vx_index] + This->stateBlock->loadBaseVertexIndex;
 416             } else {
 417                 VTRACE(("Idx for vertex %d = %d\n", vx_index, pIdxBufL[startIdx+vx_index]));
 418                 SkipnStrides = pIdxBufL[startIdx + vx_index] + This->stateBlock->loadBaseVertexIndex;
 419             }
 420         }
 421
 422         /* Texture coords --------------------------- */
 423         for (textureNo = 0; textureNo < GL_LIMITS(texture_stages); ++textureNo) {
 424
 425             if (!GL_SUPPORT(ARB_MULTITEXTURE) && textureNo > 0) {
 426                 FIXME("Program using multiple concurrent textures which this opengl implementation doesn't support\n");
 427                 continue ;
 428             }
 429
 430             /* Query tex coords */
 431             if (This->stateBlock->textures[textureNo] != NULL || pixelShader) {
 432
 433                 int    coordIdx = This->stateBlock->textureState[textureNo][WINED3DTSS_TEXCOORDINDEX];
 434                 int texture_idx = This->texUnitMap[textureNo];
 435                 float *ptrToCoords = NULL;
 436                 float  s = 0.0, t = 0.0, r = 0.0, q = 0.0;
 437
 438                 if (coordIdx > 7) {
 439                     VTRACE(("tex: %d - Skip tex coords, as being system generated\n", textureNo));
 440                     continue;
 441                 } else if (coordIdx < 0) {
 442                     FIXME("tex: %d - Coord index %d is less than zero, expect a crash.\n", textureNo, coordIdx);
 443                     continue;
 444                 }
 445
 446                 ptrToCoords = (float *)(texCoords[coordIdx] + (SkipnStrides * sd->u.s.texCoords[coordIdx].dwStride));
 447                 if (texCoords[coordIdx] == NULL) {
 448                     TRACE("tex: %d - Skipping tex coords, as no data supplied\n", textureNo);
 449                     if (GL_SUPPORT(ARB_MULTITEXTURE)) {
 450                         GL_EXTCALL(glMultiTexCoord4fARB(GL_TEXTURE0_ARB + texture_idx, 0, 0, 0, 1));
 451                     } else {
 452                         glTexCoord4f(0, 0, 0, 1);
 453                     }
 454                     continue;
 455                 } else {
 456                     int coordsToUse = sd->u.s.texCoords[coordIdx].dwType + 1; /* 0 == WINED3DDECLTYPE_FLOAT1 etc */
 457
 458                     if (texture_idx == -1) continue;
 459
 460                     /* The coords to supply depend completely on the fvf / vertex shader */
 461                     switch (coordsToUse) {
 462                     case 4: q = ptrToCoords[3]; /* drop through */
 463                     case 3: r = ptrToCoords[2]; /* drop through */
 464                     case 2: t = ptrToCoords[1]; /* drop through */
 465                     case 1: s = ptrToCoords[0];
 466                     }
 467
 468                     switch (coordsToUse) {   /* Supply the provided texture coords */
 469                     case WINED3DTTFF_COUNT1:
 470                         VTRACE(("tex:%d, s=%f\n", textureNo, s));
 471                         if (GL_SUPPORT(ARB_MULTITEXTURE)) {
 472                             GL_EXTCALL(glMultiTexCoord1fARB(GL_TEXTURE0_ARB + texture_idx, s));
 473                         } else {
 474                             glTexCoord1f(s);
 475                         }
 476                         break;
 477                     case WINED3DTTFF_COUNT2:
 478                         VTRACE(("tex:%d, s=%f, t=%f\n", textureNo, s, t));
 479                         if (GL_SUPPORT(ARB_MULTITEXTURE)) {
 480                             GL_EXTCALL(glMultiTexCoord2fARB(GL_TEXTURE0_ARB + texture_idx, s, t));
 481                         } else {
 482                             glTexCoord2f(s, t);
 483                         }
 484                         break;
 485                     case WINED3DTTFF_COUNT3:
 486                         VTRACE(("tex:%d, s=%f, t=%f, r=%f\n", textureNo, s, t, r));
 487                         if (GL_SUPPORT(ARB_MULTITEXTURE)) {
 488                             GL_EXTCALL(glMultiTexCoord3fARB(GL_TEXTURE0_ARB + texture_idx, s, t, r));
 489                         } else {
 490                             glTexCoord3f(s, t, r);
 491                         }
 492                         break;
 493                     case WINED3DTTFF_COUNT4:
 494                         VTRACE(("tex:%d, s=%f, t=%f, r=%f, q=%f\n", textureNo, s, t, r, q));
 495                         if (GL_SUPPORT(ARB_MULTITEXTURE)) {
 496                             GL_EXTCALL(glMultiTexCoord4fARB(GL_TEXTURE0_ARB + texture_idx, s, t, r, q));
 497                         } else {
 498                             glTexCoord4f(s, t, r, q);
 499                         }
 500                         break;
 501                     default:
 502                         FIXME("Should not get here as coordsToUse is two bits only (%x)!\n", coordsToUse);
 503                     }
 504                 }
 505             }
 506         } /* End of textures */
 507
 508         /* Diffuse -------------------------------- */
 509         if (diffuse) {
 510             DWORD *ptrToCoords = (DWORD *)(diffuse + (SkipnStrides * sd->u.s.diffuse.dwStride));
 511
 512             diffuse_funcs[sd->u.s.diffuse.dwType]((void *) ptrToCoords);
 513             if(This->activeContext->num_untracked_materials) {
 514                 unsigned char i;
 515                 float color[4];
 516
 517                 diffuseColor = ptrToCoords[0];
 518                 color[0] = D3DCOLOR_B_R(diffuseColor) / 255.0;
 519                 color[1] = D3DCOLOR_B_G(diffuseColor) / 255.0;
 520                 color[2] = D3DCOLOR_B_B(diffuseColor) / 255.0;
 521                 color[3] = D3DCOLOR_B_A(diffuseColor) / 255.0;
 522
 523                 for(i = 0; i < This->activeContext->num_untracked_materials; i++) {
 524                     glMaterialfv(GL_FRONT_AND_BACK, This->activeContext->untracked_materials[i], color);
 525                 }
 526             }
 527         }
 528
 529         /* Specular ------------------------------- */
 530         if (specular) {
 531             DWORD *ptrToCoords = (DWORD *)(specular + (SkipnStrides * sd->u.s.specular.dwStride));
 532
 533             /* special case where the fog density is stored in the specular alpha channel */
 534             if(This->stateBlock->renderState[WINED3DRS_FOGENABLE] &&
 535               (This->stateBlock->renderState[WINED3DRS_FOGVERTEXMODE] == WINED3DFOG_NONE || sd->u.s.position.dwType == WINED3DDECLTYPE_FLOAT4 )&&
 536               This->stateBlock->renderState[WINED3DRS_FOGTABLEMODE] == WINED3DFOG_NONE) {
 537                 if(GL_SUPPORT(EXT_FOG_COORD)) {
 538                     specularColor = ptrToCoords[0];
 539                     GL_EXTCALL(glFogCoordfEXT(specularColor >> 24));
 540                 } else {
 541                     static BOOL warned = FALSE;
 542                     if(!warned) {
 543                         /* TODO: Use the fog table code from old ddraw */
 544                         FIXME("Implement fog for transformed vertices in software\n");
 545                         warned = TRUE;
 546                     }
 547                 }
 548             }
 549
 550             specular_funcs[sd->u.s.specular.dwType]((void *) ptrToCoords);
 551         }
 552
 553         /* Normal -------------------------------- */
 554         if (normal != NULL) {
 555             float *ptrToCoords = (float *)(normal + (SkipnStrides * sd->u.s.normal.dwStride));
 556             normal_funcs[sd->u.s.normal.dwType](ptrToCoords);
 557         }
 558
 559         /* Position -------------------------------- */
 560         if (position) {
 561             float *ptrToCoords = (float *)(position + (SkipnStrides * sd->u.s.position.dwStride));
 562             position_funcs[sd->u.s.position.dwType](ptrToCoords);
 563         }
 564
 565         /* For non indexed mode, step onto next parts */
 566         if (idxData == NULL) {
 567             ++SkipnStrides;
 568         }
 569     }
 570
 571     glEnd();
 572     checkGLcall("glEnd and previous calls");
 573 }
 574
 575 static inline void send_attribute(IWineD3DDeviceImpl *This, const DWORD type, const UINT index, const void *ptr) {
 576     switch(type) {
 577         case WINED3DDECLTYPE_FLOAT1:
 578             GL_EXTCALL(glVertexAttrib1fvARB(index, (float *) ptr));
 579             break;
 580         case WINED3DDECLTYPE_FLOAT2:
 581             GL_EXTCALL(glVertexAttrib2fvARB(index, (float *) ptr));
 582             break;
 583         case WINED3DDECLTYPE_FLOAT3:
 584             GL_EXTCALL(glVertexAttrib3fvARB(index, (float *) ptr));
 585             break;
 586         case WINED3DDECLTYPE_FLOAT4:
 587             GL_EXTCALL(glVertexAttrib4fvARB(index, (float *) ptr));
 588             break;
 589
 590         case WINED3DDECLTYPE_UBYTE4:
 591             GL_EXTCALL(glVertexAttrib4ubvARB(index, ptr));
 592             break;
 593         case WINED3DDECLTYPE_UBYTE4N:
 594         case WINED3DDECLTYPE_D3DCOLOR:
 595             GL_EXTCALL(glVertexAttrib4NubvARB(index, ptr));
 596             break;
 597
 598         case WINED3DDECLTYPE_SHORT2:
 599             GL_EXTCALL(glVertexAttrib4svARB(index, (GLshort *) ptr));
 600             break;
 601         case WINED3DDECLTYPE_SHORT4:
 602             GL_EXTCALL(glVertexAttrib4svARB(index, (GLshort *) ptr));
 603             break;
 604
 605         case WINED3DDECLTYPE_SHORT2N:
 606         {
 607             GLshort s[4] = {((short *) ptr)[0], ((short *) ptr)[1], 0, 1};
 608             GL_EXTCALL(glVertexAttrib4NsvARB(index, s));
 609             break;
 610         }
 611         case WINED3DDECLTYPE_USHORT2N:
 612         {
 613             GLushort s[4] = {((unsigned short *) ptr)[0], ((unsigned short *) ptr)[1], 0, 1};
 614             GL_EXTCALL(glVertexAttrib4NusvARB(index, s));
 615             break;
 616         }
 617         case WINED3DDECLTYPE_SHORT4N:
 618             GL_EXTCALL(glVertexAttrib4NsvARB(index, (GLshort *) ptr));
 619             break;
 620         case WINED3DDECLTYPE_USHORT4N:
 621             GL_EXTCALL(glVertexAttrib4NusvARB(index, (GLushort *) ptr));
 622             break;
 623
 624         case WINED3DDECLTYPE_UDEC3:
 625             FIXME("Unsure about WINED3DDECLTYPE_UDEC3\n");
 626             /*glVertexAttrib3usvARB(instancedData[j], (GLushort *) ptr); Does not exist */
 627             break;
 628         case WINED3DDECLTYPE_DEC3N:
 629             FIXME("Unsure about WINED3DDECLTYPE_DEC3N\n");
 630             /*glVertexAttrib3NusvARB(instancedData[j], (GLushort *) ptr); Does not exist */
 631             break;
 632
 633         case WINED3DDECLTYPE_FLOAT16_2:
 634             /* Are those 16 bit floats. C doesn't have a 16 bit float type. I could read the single bits and calculate a 4
 635              * byte float according to the IEEE standard
 636              */
 637             if (GL_SUPPORT(NV_HALF_FLOAT)) {
 638                 GL_EXTCALL(glVertexAttrib2hvNV(index, (GLhalfNV *)ptr));
 639             } else {
 640                 float x = float_16_to_32(((unsigned short *) ptr) + 0);
 641                 float y = float_16_to_32(((unsigned short *) ptr) + 1);
 642                 GL_EXTCALL(glVertexAttrib2fARB(index, x, y));
 643             }
 644             break;
 645         case WINED3DDECLTYPE_FLOAT16_4:
 646             if (GL_SUPPORT(NV_HALF_FLOAT)) {
 647                 GL_EXTCALL(glVertexAttrib4hvNV(index, (GLhalfNV *)ptr));
 648             } else {
 649                 float x = float_16_to_32(((unsigned short *) ptr) + 0);
 650                 float y = float_16_to_32(((unsigned short *) ptr) + 1);
 651                 float z = float_16_to_32(((unsigned short *) ptr) + 2);
 652                 float w = float_16_to_32(((unsigned short *) ptr) + 3);
 653                 GL_EXTCALL(glVertexAttrib4fARB(index, x, y, z, w));
 654             }
 655             break;
 656
 657         case WINED3DDECLTYPE_UNUSED:
 658         default:
 659             ERR("Unexpected attribute declaration: %d\n", type);
 660             break;
 661     }
 662 }
 663
 664 static void drawStridedSlowVs(IWineD3DDevice *iface, WineDirect3DVertexStridedData *sd, UINT numberOfVertices,
 665                               GLenum glPrimitiveType, const void *idxData, short idxSize, ULONG minIndex, ULONG startIdx,
 666                               ULONG startVertex) {
 667
 668     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *) iface;
 669     long                      SkipnStrides = startVertex + This->stateBlock->loadBaseVertexIndex;
 670     const WORD                *pIdxBufS     = NULL;
 671     const DWORD               *pIdxBufL     = NULL;
 672     LONG                       vx_index;
 673     int i;
 674     IWineD3DStateBlockImpl *stateblock = This->stateBlock;
 675     BYTE *ptr;
 676
 677     if (idxSize != 0) {
 678         /* Immediate mode drawing can't make use of indices in a vbo - get the data from the index buffer.
 679          * If the index buffer has no vbo(not supported or other reason), or with user pointer drawing
 680          * idxData will be != NULL
 681          */
 682         if(idxData == NULL) {
 683             idxData = ((IWineD3DIndexBufferImpl *) stateblock->pIndexData)->resource.allocatedMemory;
 684         }
 685
 686         if (idxSize == 2) pIdxBufS = (const WORD *) idxData;
 687         else pIdxBufL = (const DWORD *) idxData;
 688     }
 689
 690     /* Start drawing in GL */
 691     VTRACE(("glBegin(%x)\n", glPrimType));
 692     glBegin(glPrimitiveType);
 693
 694     for (vx_index = 0; vx_index < numberOfVertices; ++vx_index) {
 695         if (idxData != NULL) {
 696
 697             /* Indexed so work out the number of strides to skip */
 698             if (idxSize == 2) {
 699                 VTRACE(("Idx for vertex %d = %d\n", vx_index, pIdxBufS[startIdx+vx_index]));
 700                 SkipnStrides = pIdxBufS[startIdx + vx_index] + stateblock->loadBaseVertexIndex;
 701             } else {
 702                 VTRACE(("Idx for vertex %d = %d\n", vx_index, pIdxBufL[startIdx+vx_index]));
 703                 SkipnStrides = pIdxBufL[startIdx + vx_index] + stateblock->loadBaseVertexIndex;
 704             }
 705         }
 706
 707         for(i = MAX_ATTRIBS - 1; i >= 0; i--) {
 708             if(!sd->u.input[i].lpData) continue;
 709
 710             ptr = sd->u.input[i].lpData +
 711                   sd->u.input[i].dwStride * SkipnStrides +
 712                   stateblock->streamOffset[sd->u.input[i].streamNo];
 713
 714             send_attribute(This, sd->u.input[i].dwType, i, ptr);
 715         }
 716         SkipnStrides++;
 717     }
 718
 719     glEnd();
 720 }
 721
 722 void depth_blt(IWineD3DDevice *iface, GLuint texture) {
 723     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
 724     GLint old_binding = 0;
 725
 726     glPushAttrib(GL_ENABLE_BIT | GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
 727
 728     glDisable(GL_CULL_FACE);
 729     glEnable(GL_BLEND);
 730     glDisable(GL_ALPHA_TEST);
 731     glDisable(GL_SCISSOR_TEST);
 732     glDisable(GL_STENCIL_TEST);
 733     glEnable(GL_DEPTH_TEST);
 734     glDepthFunc(GL_ALWAYS);
 735     glDepthMask(GL_TRUE);
 736     glBlendFunc(GL_ZERO, GL_ONE);
 737
 738     GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB));
 739     glGetIntegerv(GL_TEXTURE_BINDING_2D, &old_binding);
 740     glBindTexture(GL_TEXTURE_2D, texture);
 741     glEnable(GL_TEXTURE_2D);
 742
 743     This->shader_backend->shader_select_depth_blt(iface);
 744
 745     glBegin(GL_TRIANGLE_STRIP);
 746     glVertex2f(-1.0f, -1.0f);
 747     glVertex2f(1.0f, -1.0f);
 748     glVertex2f(-1.0f, 1.0f);
 749     glVertex2f(1.0f, 1.0f);
 750     glEnd();
 751
 752     glBindTexture(GL_TEXTURE_2D, old_binding);
 753
 754     glPopAttrib();
 755
 756     This->shader_backend->shader_deselect_depth_blt(iface);
 757 }
 758
 759 static inline void drawStridedInstanced(IWineD3DDevice *iface, WineDirect3DVertexStridedData *sd, UINT numberOfVertices,
 760                                  GLenum glPrimitiveType, const void *idxData, short idxSize, ULONG minIndex,
 761                                  ULONG startIdx, ULONG startVertex) {
 762     UINT numInstances = 0;
 763     int numInstancedAttribs = 0, i, j;
 764     UINT instancedData[sizeof(sd->u.input) / sizeof(sd->u.input[0]) /* 16 */];
 765     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *) iface;
 766     IWineD3DStateBlockImpl *stateblock = This->stateBlock;
 767
 768     if (idxSize == 0) {
 769         /* This is a nasty thing. MSDN says no hardware supports that and apps have to use software vertex processing.
 770          * We don't support this for now
 771          *
 772          * Shouldn't be too hard to support with opengl, in theory just call glDrawArrays instead of drawElements.
 773          * But the StreamSourceFreq value has a different meaning in that situation.
 774          */
 775         FIXME("Non-indexed instanced drawing is not supported\n");
 776         return;
 777     }
 778
 779     TRACE("(%p) : glElements(%x, %d, %d, ...)\n", This, glPrimitiveType, numberOfVertices, minIndex);
 780     idxData = idxData == (void *)-1 ? NULL : idxData;
 781
 782     /* First, figure out how many instances we have to draw */
 783     for(i = 0; i < MAX_STREAMS; i++) {
 784         /* Look at the streams and take the first one which matches */
 785         if(((stateblock->streamFlags[i] & WINED3DSTREAMSOURCE_INSTANCEDATA) || (stateblock->streamFlags[i] & WINED3DSTREAMSOURCE_INDEXEDDATA)) && stateblock->streamSource[i]) {
 786             /* D3D9 could set streamFreq 0 with (INSTANCEDATA or INDEXEDDATA) and then it is handled as 1. See d3d9/tests/visual.c-> stream_test() */
 787             if(stateblock->streamFreq[i] == 0){
 788                 numInstances = 1;
 789             } else {
 790                 numInstances = stateblock->streamFreq[i]; /* use the specified number of instances from the first matched stream. See d3d9/tests/visual.c-> stream_test() */
 791             }
 792             break; /* break, because only the first suitable value is interesting */
 793         }
 794     }
 795
 796     for(i = 0; i < sizeof(sd->u.input) / sizeof(sd->u.input[0]); i++) {
 797         if(stateblock->streamFlags[sd->u.input[i].streamNo] & WINED3DSTREAMSOURCE_INSTANCEDATA) {
 798             instancedData[numInstancedAttribs] = i;
 799             numInstancedAttribs++;
 800         }
 801     }
 802
 803     /* now draw numInstances instances :-) */
 804     for(i = 0; i < numInstances; i++) {
 805         /* Specify the instanced attributes using immediate mode calls */
 806         for(j = 0; j < numInstancedAttribs; j++) {
 807             BYTE *ptr = sd->u.input[instancedData[j]].lpData +
 808                         sd->u.input[instancedData[j]].dwStride * i +
 809                         stateblock->streamOffset[sd->u.input[instancedData[j]].streamNo];
 810             if(sd->u.input[instancedData[j]].VBO) {
 811                 IWineD3DVertexBufferImpl *vb = (IWineD3DVertexBufferImpl *) stateblock->streamSource[sd->u.input[instancedData[j]].streamNo];
 812                 ptr += (long) vb->resource.allocatedMemory;
 813             }
 814
 815             send_attribute(This, sd->u.input[instancedData[j]].dwType, instancedData[j], ptr);
 816         }
 817
 818         glDrawElements(glPrimitiveType, numberOfVertices, idxSize == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
 819                     (const char *)idxData+(idxSize * startIdx));
 820         checkGLcall("glDrawElements");
 821     }
 822 }
 823
 824 static inline void remove_vbos(IWineD3DDeviceImpl *This, WineDirect3DVertexStridedData *s) {
 825     unsigned char i;
 826     IWineD3DVertexBufferImpl *vb;
 827
 828     if(s->u.s.position.VBO) {
 829         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.position.streamNo];
 830         s->u.s.position.VBO = 0;
 831         s->u.s.position.lpData = (BYTE *) ((unsigned long) s->u.s.position.lpData + (unsigned long) vb->resource.allocatedMemory);
 832     }
 833     if(s->u.s.blendWeights.VBO) {
 834         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.blendWeights.streamNo];
 835         s->u.s.blendWeights.VBO = 0;
 836         s->u.s.blendWeights.lpData = (BYTE *) ((unsigned long) s->u.s.blendWeights.lpData + (unsigned long) vb->resource.allocatedMemory);
 837     }
 838     if(s->u.s.blendMatrixIndices.VBO) {
 839         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.blendMatrixIndices.streamNo];
 840         s->u.s.blendMatrixIndices.VBO = 0;
 841         s->u.s.blendMatrixIndices.lpData = (BYTE *) ((unsigned long) s->u.s.blendMatrixIndices.lpData + (unsigned long) vb->resource.allocatedMemory);
 842     }
 843     if(s->u.s.normal.VBO) {
 844         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.normal.streamNo];
 845         s->u.s.normal.VBO = 0;
 846         s->u.s.normal.lpData = (BYTE *) ((unsigned long) s->u.s.normal.lpData + (unsigned long) vb->resource.allocatedMemory);
 847     }
 848     if(s->u.s.pSize.VBO) {
 849         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.pSize.streamNo];
 850         s->u.s.pSize.VBO = 0;
 851         s->u.s.pSize.lpData = (BYTE *) ((unsigned long) s->u.s.pSize.lpData + (unsigned long) vb->resource.allocatedMemory);
 852     }
 853     if(s->u.s.diffuse.VBO) {
 854         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.diffuse.streamNo];
 855         s->u.s.diffuse.VBO = 0;
 856         s->u.s.diffuse.lpData = (BYTE *) ((unsigned long) s->u.s.diffuse.lpData + (unsigned long) vb->resource.allocatedMemory);
 857     }
 858     if(s->u.s.specular.VBO) {
 859         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.specular.streamNo];
 860         s->u.s.specular.VBO = 0;
 861         s->u.s.specular.lpData = (BYTE *) ((unsigned long) s->u.s.specular.lpData + (unsigned long) vb->resource.allocatedMemory);
 862     }
 863     for(i = 0; i < WINED3DDP_MAXTEXCOORD; i++) {
 864         if(s->u.s.texCoords[i].VBO) {
 865             vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.texCoords[i].streamNo];
 866             s->u.s.texCoords[i].VBO = 0;
 867             s->u.s.texCoords[i].lpData = (BYTE *) ((unsigned long) s->u.s.texCoords[i].lpData + (unsigned long) vb->resource.allocatedMemory);
 868         }
 869     }
 870     if(s->u.s.position2.VBO) {
 871         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.position2.streamNo];
 872         s->u.s.position2.VBO = 0;
 873         s->u.s.position2.lpData = (BYTE *) ((unsigned long) s->u.s.position2.lpData + (unsigned long) vb->resource.allocatedMemory);
 874     }
 875     if(s->u.s.normal2.VBO) {
 876         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.normal2.streamNo];
 877         s->u.s.normal2.VBO = 0;
 878         s->u.s.normal2.lpData = (BYTE *) ((unsigned long) s->u.s.normal2.lpData + (unsigned long) vb->resource.allocatedMemory);
 879     }
 880     if(s->u.s.tangent.VBO) {
 881         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.tangent.streamNo];
 882         s->u.s.tangent.VBO = 0;
 883         s->u.s.tangent.lpData = (BYTE *) ((unsigned long) s->u.s.tangent.lpData + (unsigned long) vb->resource.allocatedMemory);
 884     }
 885     if(s->u.s.binormal.VBO) {
 886         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.binormal.streamNo];
 887         s->u.s.binormal.VBO = 0;
 888         s->u.s.binormal.lpData = (BYTE *) ((unsigned long) s->u.s.binormal.lpData + (unsigned long) vb->resource.allocatedMemory);
 889     }
 890     if(s->u.s.tessFactor.VBO) {
 891         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.tessFactor.streamNo];
 892         s->u.s.tessFactor.VBO = 0;
 893         s->u.s.tessFactor.lpData = (BYTE *) ((unsigned long) s->u.s.tessFactor.lpData + (unsigned long) vb->resource.allocatedMemory);
 894     }
 895     if(s->u.s.fog.VBO) {
 896         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.fog.streamNo];
 897         s->u.s.fog.VBO = 0;
 898         s->u.s.fog.lpData = (BYTE *) ((unsigned long) s->u.s.fog.lpData + (unsigned long) vb->resource.allocatedMemory);
 899     }
 900     if(s->u.s.depth.VBO) {
 901         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.depth.streamNo];
 902         s->u.s.depth.VBO = 0;
 903         s->u.s.depth.lpData = (BYTE *) ((unsigned long) s->u.s.depth.lpData + (unsigned long) vb->resource.allocatedMemory);
 904     }
 905     if(s->u.s.sample.VBO) {
 906         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.sample.streamNo];
 907         s->u.s.sample.VBO = 0;
 908         s->u.s.sample.lpData = (BYTE *) ((unsigned long) s->u.s.sample.lpData + (unsigned long) vb->resource.allocatedMemory);
 909     }
 910 }
 911
 912 /* Routine common to the draw primitive and draw indexed primitive routines */
 913 void drawPrimitive(IWineD3DDevice *iface,
 914                    int PrimitiveType,
 915                    long NumPrimitives,
 916                    /* for Indexed: */
 917                    long  StartVertexIndex,
 918                    UINT  numberOfVertices,
 919                    long  StartIdx,
 920                    short idxSize,
 921                    const void *idxData,
 922                    int   minIndex) {
 923
 924     IWineD3DDeviceImpl           *This = (IWineD3DDeviceImpl *)iface;
 925     IWineD3DSwapChain            *swapchain;
 926     IWineD3DBaseTexture          *texture = NULL;
 927     IWineD3DSurfaceImpl          *target;
 928     int i;
 929
 930     if (NumPrimitives == 0) return;
 931
 932     /* Invalidate the back buffer memory so LockRect will read it the next time */
 933     for(i = 0; i < GL_LIMITS(buffers); i++) {
 934         target = (IWineD3DSurfaceImpl *) This->render_targets[i];
 935
 936         /* TODO: Only do all that if we're going to change anything
 937          * Texture container dirtification does not work quite right yet
 938          */
 939         if(target /*&& target->Flags & (SFLAG_INTEXTURE | SFLAG_INSYSMEM)*/) {
 940             swapchain = NULL;
 941             texture = NULL;
 942
 943             if(i == 0) {
 944                 IWineD3DSurface_GetContainer((IWineD3DSurface *) target, &IID_IWineD3DSwapChain, (void **)&swapchain);
 945
 946                 /* Need the surface in the drawable! */
 947                 IWineD3DSurface_LoadLocation((IWineD3DSurface *) target, SFLAG_INDRAWABLE, NULL);
 948
 949                 /* TODO: Move fbo logic to ModifyLocation */
 950                 IWineD3DSurface_ModifyLocation((IWineD3DSurface *) target, SFLAG_INDRAWABLE, TRUE);
 951                 if(swapchain) {
 952                     /* Onscreen target. Invalidate system memory copy and texture copy */
 953                     IWineD3DSwapChain_Release(swapchain);
 954                 } else if(wined3d_settings.offscreen_rendering_mode != ORM_FBO) {
 955                     /* Non-FBO target: Invalidate system copy, texture copy and dirtify the container */
 956                     /* TODO: Move container dirtification to ModifyLocation */
 957                     IWineD3DSurface_GetContainer((IWineD3DSurface *) target, &IID_IWineD3DBaseTexture, (void **)&texture);
 958
 959                     if(texture) {
 960                         IWineD3DBaseTexture_SetDirty(texture, TRUE);
 961                         IWineD3DTexture_Release(texture);
 962                     }
 963                 } else {
 964                     /* FBO offscreen target. Texture == Drawable */
 965                     target->Flags |= SFLAG_INTEXTURE;
 966                 }
 967             } else {
 968                 /* Must be an fbo render target */
 969                 IWineD3DSurface_ModifyLocation((IWineD3DSurface *) target, SFLAG_INDRAWABLE, TRUE);
 970                 target->Flags |=  SFLAG_INTEXTURE;
 971             }
 972         }
 973     }
 974
 975     /* Signals other modules that a drawing is in progress and the stateblock finalized */
 976     This->isInDraw = TRUE;
 977
 978     /* Ok, we will be updating the screen from here onwards so grab the lock */
 979
 980     if (wined3d_settings.offscreen_rendering_mode == ORM_FBO) {
 981         ENTER_GL();
 982         apply_fbo_state(iface);
 983         LEAVE_GL();
 984     }
 985
 986     ActivateContext(This, This->render_targets[0], CTXUSAGE_DRAWPRIM);
 987     ENTER_GL();
 988
 989     if (This->stencilBufferTarget) {
 990         DWORD location = This->render_offscreen ? SFLAG_DS_OFFSCREEN : SFLAG_DS_ONSCREEN;
 991         surface_load_ds_location(This->stencilBufferTarget, location);
 992         surface_modify_ds_location(This->stencilBufferTarget, location);
 993     }
 994
 995     {
 996         GLenum glPrimType;
 997         BOOL emulation = FALSE;
 998         WineDirect3DVertexStridedData *strided = &This->strided_streams;
 999         WineDirect3DVertexStridedData stridedlcl;
1000         /* Ok, Work out which primitive is requested and how many vertexes that
1001            will be                                                              */
1002         UINT calculatedNumberOfindices = primitiveToGl(PrimitiveType, NumPrimitives, &glPrimType);
1003         if (numberOfVertices == 0 )
1004             numberOfVertices = calculatedNumberOfindices;
1005
1006         if(!use_vs(This)) {
1007             if(!This->strided_streams.u.s.position_transformed && This->activeContext->num_untracked_materials &&
1008                 This->stateBlock->renderState[WINED3DRS_LIGHTING]) {
1009                 static BOOL first = TRUE;
1010                 if(first) {
1011                     FIXME("Using software emulation because not all material properties could be tracked\n");
1012                     first = FALSE;
1013                 } else {
1014                     TRACE("Using software emulation because not all material properties could be tracked\n");
1015                 }
1016                 emulation = TRUE;
1017             }
1018             else if(This->activeContext->fog_coord && This->stateBlock->renderState[WINED3DRS_FOGENABLE]) {
1019                 /* Either write a pipeline replacement shader or convert the specular alpha from unsigned byte
1020                  * to a float in the vertex buffer
1021                  */
1022                 static BOOL first = TRUE;
1023                 if(first) {
1024                     FIXME("Using software emulation because manual fog coordinates are provided\n");
1025                     first = FALSE;
1026                 } else {
1027                     TRACE("Using software emulation because manual fog coordinates are provided\n");
1028                 }
1029                 emulation = TRUE;
1030             }
1031
1032             if(emulation) {
1033                 strided = &stridedlcl;
1034                 memcpy(&stridedlcl, &This->strided_streams, sizeof(stridedlcl));
1035                 remove_vbos(This, &stridedlcl);
1036             }
1037         }
1038
1039         if (This->useDrawStridedSlow || emulation) {
1040             /* Immediate mode drawing */
1041             if(use_vs(This)) {
1042                 static BOOL first = TRUE;
1043                 if(first) {
1044                     FIXME("Using immediate mode with vertex shaders for half float emulation\n");
1045                     first = FALSE;
1046                 } else {
1047                     TRACE("Using immediate mode with vertex shaders for half float emulation\n");
1048                 }
1049                 drawStridedSlowVs(iface, strided, calculatedNumberOfindices, glPrimType,
1050                                   idxData, idxSize, minIndex, StartIdx, StartVertexIndex);
1051             } else {
1052                 drawStridedSlow(iface, strided, calculatedNumberOfindices,
1053                                 glPrimType, idxData, idxSize, minIndex, StartIdx, StartVertexIndex);
1054             }
1055         } else if(This->instancedDraw) {
1056             /* Instancing emulation with mixing immediate mode and arrays */
1057             drawStridedInstanced(iface, &This->strided_streams, calculatedNumberOfindices, glPrimType,
1058                             idxData, idxSize, minIndex, StartIdx, StartVertexIndex);
1059         } else {
1060             drawStridedFast(iface, calculatedNumberOfindices, glPrimType,
1061                             idxData, idxSize, minIndex, StartIdx, StartVertexIndex);
1062         }
1063     }
1064
1065     /* Finished updating the screen, restore lock */
1066     LEAVE_GL();
1067     TRACE("Done all gl drawing\n");
1068
1069     /* Diagnostics */
1070 #ifdef SHOW_FRAME_MAKEUP
1071     {
1072         static long int primCounter = 0;
1073         /* NOTE: set primCounter to the value reported by drawprim
1074            before you want to to write frame makeup to /tmp */
1075         if (primCounter >= 0) {
1076             WINED3DLOCKED_RECT r;
1077             char buffer[80];
1078             IWineD3DSurface_LockRect(This->renderTarget, &r, NULL, WINED3DLOCK_READONLY);
1079             sprintf(buffer, "/tmp/backbuffer_%d.tga", primCounter);
1080             TRACE("Saving screenshot %s\n", buffer);
1081             IWineD3DSurface_SaveSnapshot(This->renderTarget, buffer);
1082             IWineD3DSurface_UnlockRect(This->renderTarget);
1083
1084 #ifdef SHOW_TEXTURE_MAKEUP
1085            {
1086             IWineD3DSurface *pSur;
1087             int textureNo;
1088             for (textureNo = 0; textureNo < MAX_COMBINED_SAMPLERS; ++textureNo) {
1089                 if (This->stateBlock->textures[textureNo] != NULL) {
1090                     sprintf(buffer, "/tmp/texture_%p_%d_%d.tga", This->stateBlock->textures[textureNo], primCounter, textureNo);
1091                     TRACE("Saving texture %s\n", buffer);
1092                     if (IWineD3DBaseTexture_GetType(This->stateBlock->textures[textureNo]) == WINED3DRTYPE_TEXTURE) {
1093                             IWineD3DTexture_GetSurfaceLevel((IWineD3DTexture *)This->stateBlock->textures[textureNo], 0, &pSur);
1094                             IWineD3DSurface_SaveSnapshot(pSur, buffer);
1095                             IWineD3DSurface_Release(pSur);
1096                     } else  {
1097                         FIXME("base Texture isn't of type texture %d\n", IWineD3DBaseTexture_GetType(This->stateBlock->textures[textureNo]));
1098                     }
1099                 }
1100             }
1101            }
1102 #endif
1103         }
1104         TRACE("drawprim #%d\n", primCounter);
1105         ++primCounter;
1106     }
1107 #endif
1108
1109     /* Control goes back to the device, stateblock values may change again */
1110     This->isInDraw = FALSE;
1111 }
1112
1113 static void normalize_normal(float *n) {
1114     float length = n[0] * n[0] + n[1] * n[1] + n[2] * n[2];
1115     if(length == 0.0) return;
1116     length = sqrt(length);
1117     n[0] = n[0] / length;
1118     n[1] = n[1] / length;
1119     n[2] = n[2] / length;
1120 }
1121
1122 /* Tesselates a high order rectangular patch into single triangles using gl evaluators
1123  *
1124  * The problem is that OpenGL does not offer a direct way to return the tesselated primitives,
1125  * and they can't be sent off for rendering directly either. Tesselating is slow, so we want
1126  * to cache the patches in a vertex buffer. But more importantly, gl can't bind generated
1127  * attributes to numbered shader attributes, so we have to store them and rebind them as needed
1128  * in drawprim.
1129  *
1130  * To read back, the opengl feedback mode is used. This creates a proplem because we want
1131  * untransformed, unlit vertices, but feedback runs everything through transform and lighting.
1132  * Thus disable lighting and set identity matrices to get unmodified colors and positions.
1133  * To overcome clipping find the biggest x, y and z values of the vertices in the patch and scale
1134  * them to [-1.0;+1.0] and set the viewport up to scale them back.
1135  *
1136  * Normals are more tricky: Draw white vertices with 3 directional lights, and calculate the
1137  * resulting colors back to the normals.
1138  *
1139  * NOTE: This function activates a context for blitting, modifies matrices & viewport, but
1140  * does not restore it because normally a draw follows immediately afterwards. The caller is
1141  * responsible of taking care that either the gl states are restored, or the context activated
1142  * for drawing to reset the lastWasBlit flag.
1143  */
1144 HRESULT tesselate_rectpatch(IWineD3DDeviceImpl *This,
1145                             struct WineD3DRectPatch *patch) {
1146     unsigned int i, j, num_quads, out_vertex_size, buffer_size, d3d_out_vertex_size;
1147     float max_x = 0.0, max_y = 0.0, max_z = 0.0, neg_z = 0.0;
1148     WineDirect3DVertexStridedData strided;
1149     BYTE *data;
1150     WINED3DRECTPATCH_INFO *info = &patch->RectPatchInfo;
1151     DWORD vtxStride;
1152     GLenum feedback_type;
1153     GLfloat *feedbuffer;
1154
1155     /* First, locate the position data. This is provided in a vertex buffer in the stateblock.
1156      * Beware of vbos
1157      */
1158     memset(&strided, 0, sizeof(strided));
1159     primitiveDeclarationConvertToStridedData((IWineD3DDevice *) This, FALSE, &strided, NULL);
1160     if(strided.u.s.position.VBO) {
1161         IWineD3DVertexBufferImpl *vb;
1162         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[strided.u.s.position.streamNo];
1163         strided.u.s.position.lpData = (BYTE *) ((unsigned long) strided.u.s.position.lpData +
1164                                                 (unsigned long) vb->resource.allocatedMemory);
1165     }
1166     vtxStride = strided.u.s.position.dwStride;
1167     data = strided.u.s.position.lpData +
1168            vtxStride * info->Stride * info->StartVertexOffsetHeight +
1169            vtxStride * info->StartVertexOffsetWidth;
1170
1171     /* Not entirely sure about what happens with transformed vertices */
1172     if(strided.u.s.position_transformed) {
1173         FIXME("Transformed position in rectpatch generation\n");
1174     }
1175     if(vtxStride % sizeof(GLfloat)) {
1176         /* glMap2f reads vertex sizes in GLfloats, the d3d stride is in bytes.
1177          * I don't see how the stride could not be a multiple of 4, but make sure
1178          * to check it
1179          */
1180         ERR("Vertex stride is not a multiple of sizeof(GLfloat)\n");
1181     }
1182     if(info->Basis != WINED3DBASIS_BEZIER) {
1183         FIXME("Basis is %s, how to handle this?\n", debug_d3dbasis(info->Basis));
1184     }
1185     if(info->Degree != WINED3DDEGREE_CUBIC) {
1186         FIXME("Degree is %s, how to handle this?\n", debug_d3ddegree(info->Degree));
1187     }
1188
1189     /* First, get the boundary cube of the input data */
1190     for(j = 0; j < info->Height; j++) {
1191         for(i = 0; i < info->Width; i++) {
1192             float *v = (float *) (data + vtxStride * i + vtxStride * info->Stride * j);
1193             if(fabs(v[0]) > max_x) max_x = fabs(v[0]);
1194             if(fabs(v[1]) > max_y) max_y = fabs(v[1]);
1195             if(fabs(v[2]) > max_z) max_z = fabs(v[2]);
1196             if(v[2] < neg_z) neg_z = v[2];
1197         }
1198     }
1199
1200     /* This needs some improvements in the vertex decl code */
1201     FIXME("Cannot find data to generate. Only generating position and normals\n");
1202     patch->has_normals = TRUE;
1203     patch->has_texcoords = FALSE;
1204
1205     /* Simply activate the context for blitting. This disables all the things we don't want and
1206      * takes care of dirtifying. Dirtifying is preferred over pushing / popping, since drawing the
1207      * patch (as opposed to normal draws) will most likely need different changes anyway
1208      */
1209     ActivateContext(This, This->lastActiveRenderTarget, CTXUSAGE_BLIT);
1210     ENTER_GL();
1211
1212     glMatrixMode(GL_PROJECTION);
1213     checkGLcall("glMatrixMode(GL_PROJECTION)");
1214     glLoadIdentity();
1215     checkGLcall("glLoadIndentity()");
1216     glScalef(1 / (max_x) , 1 / (max_y), max_z == 0 ? 1 : 1 / ( 2 * max_z));
1217     glTranslatef(0, 0, 0.5);
1218     checkGLcall("glScalef");
1219     glViewport(-max_x, -max_y, 2 * (max_x), 2 * (max_y));
1220     checkGLcall("glViewport");
1221
1222     /* Some states to take care of. If we're in wireframe opengl will produce lines, and confuse
1223      * our feedback buffer parser
1224      */
1225     glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
1226     checkGLcall("glPolygonMode(GL_FRONT_AND_BACK, GL_FILL)");
1227     IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_FILLMODE));
1228     if(patch->has_normals) {
1229         float black[4] = {0, 0, 0, 0};
1230         float red[4]   = {1, 0, 0, 0};
1231         float green[4] = {0, 1, 0, 0};
1232         float blue[4]  = {0, 0, 1, 0};
1233         float white[4] = {1, 1, 1, 1};
1234         glEnable(GL_LIGHTING);
1235         checkGLcall("glEnable(GL_LIGHTING)");
1236         glLightModelfv(GL_LIGHT_MODEL_AMBIENT, black);
1237         checkGLcall("glLightModel for MODEL_AMBIENT");
1238         IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_AMBIENT));
1239
1240         for(i = 3; i < GL_LIMITS(lights); i++) {
1241             glDisable(GL_LIGHT0 + i);
1242             checkGLcall("glDisable(GL_LIGHT0 + i)");
1243             IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(i));
1244         }
1245
1246         IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(0));
1247         glLightfv(GL_LIGHT0, GL_DIFFUSE, red);
1248         glLightfv(GL_LIGHT0, GL_SPECULAR, black);
1249         glLightfv(GL_LIGHT0, GL_AMBIENT, black);
1250         glLightfv(GL_LIGHT0, GL_POSITION, red);
1251         glEnable(GL_LIGHT0);
1252         checkGLcall("Setting up light 1\n");
1253         IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(1));
1254         glLightfv(GL_LIGHT1, GL_DIFFUSE, green);
1255         glLightfv(GL_LIGHT1, GL_SPECULAR, black);
1256         glLightfv(GL_LIGHT1, GL_AMBIENT, black);
1257         glLightfv(GL_LIGHT1, GL_POSITION, green);
1258         glEnable(GL_LIGHT1);
1259         checkGLcall("Setting up light 2\n");
1260         IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(2));
1261         glLightfv(GL_LIGHT2, GL_DIFFUSE, blue);
1262         glLightfv(GL_LIGHT2, GL_SPECULAR, black);
1263         glLightfv(GL_LIGHT2, GL_AMBIENT, black);
1264         glLightfv(GL_LIGHT2, GL_POSITION, blue);
1265         glEnable(GL_LIGHT2);
1266         checkGLcall("Setting up light 3\n");
1267
1268         IWineD3DDeviceImpl_MarkStateDirty(This, STATE_MATERIAL);
1269         IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_COLORVERTEX));
1270         glDisable(GL_COLOR_MATERIAL);
1271         glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, black);
1272         glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, black);
1273         glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, white);
1274         checkGLcall("Setting up materials\n");
1275     }
1276
1277     /* Enable the needed maps.
1278      * GL_MAP2_VERTEX_3 is needed for positional data.
1279      * GL_AUTO_NORMAL to generate normals from the position. Do not use GL_MAP2_NORMAL.
1280      * GL_MAP2_TEXTURE_COORD_4 for texture coords
1281      */
1282     num_quads = ceilf(patch->numSegs[0]) * ceilf(patch->numSegs[1]);
1283     out_vertex_size = 3 /* position */;
1284     d3d_out_vertex_size = 3;
1285     glEnable(GL_MAP2_VERTEX_3);
1286     if(patch->has_normals && patch->has_texcoords) {
1287         FIXME("Texcoords not handled yet\n");
1288         feedback_type = GL_3D_COLOR_TEXTURE;
1289         out_vertex_size += 8;
1290         d3d_out_vertex_size += 7;
1291         glEnable(GL_AUTO_NORMAL);
1292         glEnable(GL_MAP2_TEXTURE_COORD_4);
1293     } else if(patch->has_texcoords) {
1294         FIXME("Texcoords not handled yet\n");
1295         feedback_type = GL_3D_COLOR_TEXTURE;
1296         out_vertex_size += 7;
1297         d3d_out_vertex_size += 4;
1298         glEnable(GL_MAP2_TEXTURE_COORD_4);
1299     } else if(patch->has_normals) {
1300         feedback_type = GL_3D_COLOR;
1301         out_vertex_size += 4;
1302         d3d_out_vertex_size += 3;
1303         glEnable(GL_AUTO_NORMAL);
1304     } else {
1305         feedback_type = GL_3D;
1306     }
1307     checkGLcall("glEnable vertex attrib generation");
1308
1309     buffer_size = num_quads * out_vertex_size * 2 /* triangle list */ * 3 /* verts per tri */
1310                    + 4 * num_quads /* 2 triangle markers per quad + num verts in tri */;
1311     feedbuffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, buffer_size * sizeof(float) * 8);
1312
1313     glMap2f(GL_MAP2_VERTEX_3,
1314             0, 1, vtxStride / sizeof(float), info->Width,
1315             0, 1, info->Stride * vtxStride / sizeof(float), info->Height,
1316             (float *) data);
1317     checkGLcall("glMap2f");
1318     if(patch->has_texcoords) {
1319         glMap2f(GL_MAP2_TEXTURE_COORD_4,
1320                 0, 1, vtxStride / sizeof(float), info->Width,
1321                 0, 1, info->Stride * vtxStride / sizeof(float), info->Height,
1322                 (float *) data);
1323         checkGLcall("glMap2f");
1324     }
1325     glMapGrid2f(ceilf(patch->numSegs[0]), 0.0, 1.0, ceilf(patch->numSegs[1]), 0.0, 1.0);
1326     checkGLcall("glMapGrid2f");
1327
1328     glFeedbackBuffer(buffer_size * 2, feedback_type, feedbuffer);
1329     checkGLcall("glFeedbackBuffer");
1330     glRenderMode(GL_FEEDBACK);
1331
1332     glEvalMesh2(GL_FILL, 0, ceilf(patch->numSegs[0]), 0, ceilf(patch->numSegs[1]));
1333     checkGLcall("glEvalMesh2\n");
1334
1335     i = glRenderMode(GL_RENDER);
1336     if(i == -1) {
1337         LEAVE_GL();
1338         ERR("Feedback failed. Expected %d elements back\n", buffer_size);
1339         Sleep(10000);
1340         HeapFree(GetProcessHeap(), 0, feedbuffer);
1341         return WINED3DERR_DRIVERINTERNALERROR;
1342     } else if(i != buffer_size) {
1343         LEAVE_GL();
1344         ERR("Unexpected amount of elements returned. Expected %d, got %d\n", buffer_size, i);
1345         Sleep(10000);
1346         HeapFree(GetProcessHeap(), 0, feedbuffer);
1347         return WINED3DERR_DRIVERINTERNALERROR;
1348     } else {
1349         TRACE("Got %d elements as expected\n", i);
1350     }
1351
1352     HeapFree(GetProcessHeap(), 0, patch->mem);
1353     patch->mem = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, num_quads * 6 * d3d_out_vertex_size * sizeof(float) * 8);
1354     i = 0;
1355     for(j = 0; j < buffer_size; j += (3 /* num verts */ * out_vertex_size + 2 /* tri marker */)) {
1356         if(feedbuffer[j] != GL_POLYGON_TOKEN) {
1357             ERR("Unexpected token: %f\n", feedbuffer[j]);
1358             continue;
1359         }
1360         if(feedbuffer[j + 1] != 3) {
1361             ERR("Unexpected polygon: %f corners\n", feedbuffer[j + 1]);
1362             continue;
1363         }
1364         /* Somehow there are different ideas about back / front facing, so fix up the
1365          * vertex order
1366          */
1367         patch->mem[i + 0] =  feedbuffer[j + out_vertex_size * 2 + 2]; /* x, triangle 2 */
1368         patch->mem[i + 1] =  feedbuffer[j + out_vertex_size * 2 + 3]; /* y, triangle 2 */
1369         patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 2 + 4] - 0.5) * 4 * max_z; /* z, triangle 3 */
1370         if(patch->has_normals) {
1371             patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 2 + 5];
1372             patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 2 + 6];
1373             patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 2 + 7];
1374         }
1375         i += d3d_out_vertex_size;
1376
1377         patch->mem[i + 0] =  feedbuffer[j + out_vertex_size * 1 + 2]; /* x, triangle 2 */
1378         patch->mem[i + 1] =  feedbuffer[j + out_vertex_size * 1 + 3]; /* y, triangle 2 */
1379         patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 1 + 4] - 0.5) * 4 * max_z; /* z, triangle 2 */
1380         if(patch->has_normals) {
1381             patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 1 + 5];
1382             patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 1 + 6];
1383             patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 1 + 7];
1384         }
1385         i += d3d_out_vertex_size;
1386
1387         patch->mem[i + 0] =  feedbuffer[j + out_vertex_size * 0 + 2]; /* x, triangle 1 */
1388         patch->mem[i + 1] =  feedbuffer[j + out_vertex_size * 0 + 3]; /* y, triangle 1 */
1389         patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 0 + 4] - 0.5) * 4 * max_z; /* z, triangle 1 */
1390         if(patch->has_normals) {
1391             patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 0 + 5];
1392             patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 0 + 6];
1393             patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 0 + 7];
1394         }
1395         i += d3d_out_vertex_size;
1396     }
1397
1398     if(patch->has_normals) {
1399         /* Now do the same with reverse light directions */
1400         float x[4] = {-1,  0,  0, 0};
1401         float y[4] = { 0, -1,  0, 0};
1402         float z[4] = { 0,  0, -1, 0};
1403         glLightfv(GL_LIGHT0, GL_POSITION, x);
1404         glLightfv(GL_LIGHT1, GL_POSITION, y);
1405         glLightfv(GL_LIGHT2, GL_POSITION, z);
1406         checkGLcall("Setting up reverse light directions\n");
1407
1408         glRenderMode(GL_FEEDBACK);
1409         checkGLcall("glRenderMode(GL_FEEDBACK)");
1410         glEvalMesh2(GL_FILL, 0, ceilf(patch->numSegs[0]), 0, ceilf(patch->numSegs[1]));
1411         checkGLcall("glEvalMesh2\n");
1412         i = glRenderMode(GL_RENDER);
1413         checkGLcall("glRenderMode(GL_RENDER)");
1414
1415         i = 0;
1416         for(j = 0; j < buffer_size; j += (3 /* num verts */ * out_vertex_size + 2 /* tri marker */)) {
1417             if(feedbuffer[j] != GL_POLYGON_TOKEN) {
1418                 ERR("Unexpected token: %f\n", feedbuffer[j]);
1419                 continue;
1420             }
1421             if(feedbuffer[j + 1] != 3) {
1422                 ERR("Unexpected polygon: %f corners\n", feedbuffer[j + 1]);
1423                 continue;
1424             }
1425             if(patch->mem[i + 3] == 0.0)
1426                 patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 2 + 5];
1427             if(patch->mem[i + 4] == 0.0)
1428                 patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 2 + 6];
1429             if(patch->mem[i + 5] == 0.0)
1430                 patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 2 + 7];
1431             normalize_normal(patch->mem + i + 3);
1432             i += d3d_out_vertex_size;
1433
1434             if(patch->mem[i + 3] == 0.0)
1435                 patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 1 + 5];
1436             if(patch->mem[i + 4] == 0.0)
1437                 patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 1 + 6];
1438             if(patch->mem[i + 5] == 0.0)
1439                 patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 1 + 7];
1440             normalize_normal(patch->mem + i + 3);
1441             i += d3d_out_vertex_size;
1442
1443             if(patch->mem[i + 3] == 0.0)
1444                 patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 0 + 5];
1445             if(patch->mem[i + 4] == 0.0)
1446                 patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 0 + 6];
1447             if(patch->mem[i + 5] == 0.0)
1448                 patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 0 + 7];
1449             normalize_normal(patch->mem + i + 3);
1450             i += d3d_out_vertex_size;
1451         }
1452     }
1453
1454     glDisable(GL_MAP2_VERTEX_3);
1455     glDisable(GL_AUTO_NORMAL);
1456     glDisable(GL_MAP2_NORMAL);
1457     glDisable(GL_MAP2_TEXTURE_COORD_4);
1458     checkGLcall("glDisable vertex attrib generation");
1459     LEAVE_GL();
1460
1461     HeapFree(GetProcessHeap(), 0, feedbuffer);
1462
1463     vtxStride = 3 * sizeof(float);
1464     if(patch->has_normals) {
1465         vtxStride += 3 * sizeof(float);
1466     }
1467     if(patch->has_texcoords) {
1468         vtxStride += 4 * sizeof(float);
1469     }
1470     memset(&patch->strided, 0, sizeof(&patch->strided));
1471     patch->strided.u.s.position.lpData = (BYTE *) patch->mem;
1472     patch->strided.u.s.position.dwStride = vtxStride;
1473     patch->strided.u.s.position.dwType = WINED3DDECLTYPE_FLOAT3;
1474     patch->strided.u.s.position.streamNo = 255;
1475
1476     if(patch->has_normals) {
1477         patch->strided.u.s.normal.lpData = (BYTE *) patch->mem + 3 * sizeof(float) /* pos */;
1478         patch->strided.u.s.normal.dwStride = vtxStride;
1479         patch->strided.u.s.normal.dwType = WINED3DDECLTYPE_FLOAT3;
1480         patch->strided.u.s.normal.streamNo = 255;
1481     }
1482     if(patch->has_texcoords) {
1483         patch->strided.u.s.texCoords[0].lpData = (BYTE *) patch->mem + 3 * sizeof(float) /* pos */;
1484         if(patch->has_normals) {
1485             patch->strided.u.s.texCoords[0].lpData += 3 * sizeof(float);
1486         }
1487         patch->strided.u.s.texCoords[0].dwStride = vtxStride;
1488         patch->strided.u.s.texCoords[0].dwType = WINED3DDECLTYPE_FLOAT4;
1489         /* MAX_STREAMS index points to an unused element in stateblock->streamOffsets which
1490          * always remains set to 0. Windows uses stream 255 here, but this is not visible to the
1491          * application.
1492          */
1493         patch->strided.u.s.texCoords[0].streamNo = MAX_STREAMS;
1494     }
1495
1496     return WINED3D_OK;
1497 }