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, 2008 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 /* Issues the glBegin call for gl given the primitive type and count */
  36 static DWORD primitiveToGl(WINED3DPRIMITIVETYPE PrimitiveType,
  37                     DWORD            NumPrimitives,
  38                     GLenum          *primType)
  39 {
  40     DWORD   NumVertexes = NumPrimitives;
  41
  42     switch (PrimitiveType) {
  43     case WINED3DPT_POINTLIST:
  44         TRACE("POINTS\n");
  45         *primType   = GL_POINTS;
  46         NumVertexes = NumPrimitives;
  47         break;
  48
  49     case WINED3DPT_LINELIST:
  50         TRACE("LINES\n");
  51         *primType   = GL_LINES;
  52         NumVertexes = NumPrimitives * 2;
  53         break;
  54
  55     case WINED3DPT_LINESTRIP:
  56         TRACE("LINE_STRIP\n");
  57         *primType   = GL_LINE_STRIP;
  58         NumVertexes = NumPrimitives + 1;
  59         break;
  60
  61     case WINED3DPT_TRIANGLELIST:
  62         TRACE("TRIANGLES\n");
  63         *primType   = GL_TRIANGLES;
  64         NumVertexes = NumPrimitives * 3;
  65         break;
  66
  67     case WINED3DPT_TRIANGLESTRIP:
  68         TRACE("TRIANGLE_STRIP\n");
  69         *primType   = GL_TRIANGLE_STRIP;
  70         NumVertexes = NumPrimitives + 2;
  71         break;
  72
  73     case WINED3DPT_TRIANGLEFAN:
  74         TRACE("TRIANGLE_FAN\n");
  75         *primType   = GL_TRIANGLE_FAN;
  76         NumVertexes = NumPrimitives + 2;
  77         break;
  78
  79     default:
  80         FIXME("Unhandled primitive\n");
  81         *primType    = GL_POINTS;
  82         break;
  83     }
  84     return NumVertexes;
  85 }
  86
  87 static BOOL fixed_get_input(
  88     BYTE usage, BYTE usage_idx,
  89     unsigned int* regnum) {
  90
  91     *regnum = -1;
  92
  93     /* Those positions must have the order in the
  94      * named part of the strided data */
  95
  96     if ((usage == WINED3DDECLUSAGE_POSITION || usage == WINED3DDECLUSAGE_POSITIONT) && usage_idx == 0)
  97         *regnum = 0;
  98     else if (usage == WINED3DDECLUSAGE_BLENDWEIGHT && usage_idx == 0)
  99         *regnum = 1;
 100     else if (usage == WINED3DDECLUSAGE_BLENDINDICES && usage_idx == 0)
 101         *regnum = 2;
 102     else if (usage == WINED3DDECLUSAGE_NORMAL && usage_idx == 0)
 103         *regnum = 3;
 104     else if (usage == WINED3DDECLUSAGE_PSIZE && usage_idx == 0)
 105         *regnum = 4;
 106     else if (usage == WINED3DDECLUSAGE_COLOR && usage_idx == 0)
 107         *regnum = 5;
 108     else if (usage == WINED3DDECLUSAGE_COLOR && usage_idx == 1)
 109         *regnum = 6;
 110     else if (usage == WINED3DDECLUSAGE_TEXCOORD && usage_idx < WINED3DDP_MAXTEXCOORD)
 111         *regnum = 7 + usage_idx;
 112     else if ((usage == WINED3DDECLUSAGE_POSITION || usage == WINED3DDECLUSAGE_POSITIONT) && usage_idx == 1)
 113         *regnum = 7 + WINED3DDP_MAXTEXCOORD;
 114     else if (usage == WINED3DDECLUSAGE_NORMAL && usage_idx == 1)
 115         *regnum = 8 + WINED3DDP_MAXTEXCOORD;
 116     else if (usage == WINED3DDECLUSAGE_TANGENT && usage_idx == 0)
 117         *regnum = 9 + WINED3DDP_MAXTEXCOORD;
 118     else if (usage == WINED3DDECLUSAGE_BINORMAL && usage_idx == 0)
 119         *regnum = 10 + WINED3DDP_MAXTEXCOORD;
 120     else if (usage == WINED3DDECLUSAGE_TESSFACTOR && usage_idx == 0)
 121         *regnum = 11 + WINED3DDP_MAXTEXCOORD;
 122     else if (usage == WINED3DDECLUSAGE_FOG && usage_idx == 0)
 123         *regnum = 12 + WINED3DDP_MAXTEXCOORD;
 124     else if (usage == WINED3DDECLUSAGE_DEPTH && usage_idx == 0)
 125         *regnum = 13 + WINED3DDP_MAXTEXCOORD;
 126     else if (usage == WINED3DDECLUSAGE_SAMPLE && usage_idx == 0)
 127         *regnum = 14 + WINED3DDP_MAXTEXCOORD;
 128
 129     if (*regnum == -1) {
 130         FIXME("Unsupported input stream [usage=%s, usage_idx=%u]\n",
 131             debug_d3ddeclusage(usage), usage_idx);
 132         return FALSE;
 133     }
 134     return TRUE;
 135 }
 136
 137 void primitiveDeclarationConvertToStridedData(
 138      IWineD3DDevice *iface,
 139      BOOL useVertexShaderFunction,
 140      WineDirect3DVertexStridedData *strided,
 141      BOOL *fixup) {
 142
 143      /* We need to deal with frequency data!*/
 144
 145     const BYTE *data = NULL;
 146     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
 147     IWineD3DVertexDeclarationImpl* vertexDeclaration = (IWineD3DVertexDeclarationImpl *)This->stateBlock->vertexDecl;
 148     unsigned int i;
 149     const WINED3DVERTEXELEMENT *element;
 150     DWORD stride;
 151     DWORD numPreloadStreams = This->stateBlock->streamIsUP ? 0 : vertexDeclaration->num_streams;
 152     const DWORD *streams = vertexDeclaration->streams;
 153
 154     /* Check for transformed vertices, disable vertex shader if present */
 155     strided->u.s.position_transformed = vertexDeclaration->position_transformed;
 156     if(vertexDeclaration->position_transformed) {
 157         useVertexShaderFunction = FALSE;
 158     }
 159
 160     /* Translate the declaration into strided data */
 161     for (i = 0 ; i < vertexDeclaration->declarationWNumElements - 1; ++i) {
 162         GLint streamVBO = 0;
 163         BOOL stride_used;
 164         unsigned int idx;
 165
 166         element = vertexDeclaration->pDeclarationWine + i;
 167         TRACE("%p Element %p (%u of %u)\n", vertexDeclaration->pDeclarationWine,
 168             element,  i + 1, vertexDeclaration->declarationWNumElements - 1);
 169
 170         if (This->stateBlock->streamSource[element->Stream] == NULL)
 171             continue;
 172
 173         stride  = This->stateBlock->streamStride[element->Stream];
 174         if (This->stateBlock->streamIsUP) {
 175             TRACE("Stream is up %d, %p\n", element->Stream, This->stateBlock->streamSource[element->Stream]);
 176             streamVBO = 0;
 177             data    = (BYTE *)This->stateBlock->streamSource[element->Stream];
 178         } else {
 179             TRACE("Stream isn't up %d, %p\n", element->Stream, This->stateBlock->streamSource[element->Stream]);
 180             data    = IWineD3DVertexBufferImpl_GetMemory(This->stateBlock->streamSource[element->Stream], 0, &streamVBO);
 181
 182             /* Can't use vbo's if the base vertex index is negative. OpenGL doesn't accept negative offsets
 183              * (or rather offsets bigger than the vbo, because the pointer is unsigned), so use system memory
 184              * sources. In most sane cases the pointer - offset will still be > 0, otherwise it will wrap
 185              * around to some big value. Hope that with the indices, the driver wraps it back internally. If
 186              * not, drawStridedSlow is needed, including a vertex buffer path.
 187              */
 188             if(This->stateBlock->loadBaseVertexIndex < 0) {
 189                 WARN("loadBaseVertexIndex is < 0 (%d), not using vbos\n", This->stateBlock->loadBaseVertexIndex);
 190                 streamVBO = 0;
 191                 data = ((IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[element->Stream])->resource.allocatedMemory;
 192                 if((UINT_PTR)data < -This->stateBlock->loadBaseVertexIndex * stride) {
 193                     FIXME("System memory vertex data load offset is negative!\n");
 194                 }
 195             }
 196
 197             if(fixup) {
 198                 if( streamVBO != 0) *fixup = TRUE;
 199                 else if(*fixup && !useVertexShaderFunction &&
 200                        (element->Usage == WINED3DDECLUSAGE_COLOR ||
 201                         element->Usage == WINED3DDECLUSAGE_POSITIONT)) {
 202                     static BOOL warned = FALSE;
 203                     if(!warned) {
 204                         /* This may be bad with the fixed function pipeline */
 205                         FIXME("Missing vbo streams with unfixed colors or transformed position, expect problems\n");
 206                         warned = TRUE;
 207                     }
 208                 }
 209             }
 210         }
 211         data += element->Offset;
 212
 213         TRACE("Offset %d Stream %d UsageIndex %d\n", element->Offset, element->Stream, element->UsageIndex);
 214
 215         if (useVertexShaderFunction)
 216             stride_used = vshader_get_input(This->stateBlock->vertexShader,
 217                 element->Usage, element->UsageIndex, &idx);
 218         else
 219             stride_used = fixed_get_input(element->Usage, element->UsageIndex, &idx);
 220
 221         if (stride_used) {
 222             TRACE("Load %s array %u [usage=%s, usage_idx=%u, "
 223                     "stream=%u, offset=%u, stride=%u, type=%s, VBO=%u]\n",
 224                     useVertexShaderFunction? "shader": "fixed function", idx,
 225                     debug_d3ddeclusage(element->Usage), element->UsageIndex,
 226                     element->Stream, element->Offset, stride, debug_d3ddecltype(element->Type), streamVBO);
 227
 228             if (!useVertexShaderFunction && !vertexDeclaration->ffp_valid[i]) {
 229                 WARN("Skipping unsupported fixed function element of type %s and usage %s\n",
 230                     debug_d3ddecltype(element->Type), debug_d3ddeclusage(element->Usage));
 231             } else {
 232                 strided->u.input[idx].lpData = data;
 233                 strided->u.input[idx].dwType = element->Type;
 234                 strided->u.input[idx].dwStride = stride;
 235                 strided->u.input[idx].VBO = streamVBO;
 236                 strided->u.input[idx].streamNo = element->Stream;
 237             }
 238         }
 239     }
 240     /* Now call PreLoad on all the vertex buffers. In the very rare case
 241      * that the buffers stopps converting PreLoad will dirtify the VDECL again.
 242      * The vertex buffer can now use the strided structure in the device instead of finding its
 243      * own again.
 244      *
 245      * NULL streams won't be recorded in the array, UP streams won't be either. A stream is only
 246      * once in there.
 247      */
 248     for(i=0; i < numPreloadStreams; i++) {
 249         IWineD3DVertexBuffer *vb = This->stateBlock->streamSource[streams[i]];
 250         if(vb) {
 251             IWineD3DVertexBuffer_PreLoad(vb);
 252         }
 253     }
 254 }
 255
 256 static void drawStridedFast(IWineD3DDevice *iface,UINT numberOfVertices, GLenum glPrimitiveType,
 257                      const void *idxData, short idxSize, ULONG minIndex, ULONG startIdx, ULONG startVertex) {
 258     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
 259
 260     if (idxSize != 0 /* This crashes sometimes!*/) {
 261         TRACE("(%p) : glElements(%x, %d, %d, ...)\n", This, glPrimitiveType, numberOfVertices, minIndex);
 262         idxData = idxData == (void *)-1 ? NULL : idxData;
 263 #if 1
 264         glDrawElements(glPrimitiveType, numberOfVertices, idxSize == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
 265                      (const char *)idxData+(idxSize * startIdx));
 266         checkGLcall("glDrawElements");
 267 #else /* using drawRangeElements may be faster */
 268
 269         glDrawRangeElements(glPrimitiveType, minIndex, minIndex + numberOfVertices - 1, numberOfVertices,
 270                       idxSize == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
 271                       (const char *)idxData+(idxSize * startIdx));
 272         checkGLcall("glDrawRangeElements");
 273 #endif
 274
 275     } else {
 276         TRACE("(%p) : glDrawArrays(%#x, %d, %d)\n", This, glPrimitiveType, startVertex, numberOfVertices);
 277         glDrawArrays(glPrimitiveType, startVertex, numberOfVertices);
 278         checkGLcall("glDrawArrays");
 279     }
 280
 281     return;
 282 }
 283
 284 /*
 285  * Actually draw using the supplied information.
 286  * Slower GL version which extracts info about each vertex in turn
 287  */
 288
 289 static void drawStridedSlow(IWineD3DDevice *iface, const WineDirect3DVertexStridedData *sd, UINT NumVertexes,
 290         GLenum glPrimType, const void *idxData, short idxSize, ULONG minIndex, ULONG startIdx, ULONG startVertex)
 291 {
 292     unsigned int               textureNo    = 0;
 293     const WORD                *pIdxBufS     = NULL;
 294     const DWORD               *pIdxBufL     = NULL;
 295     ULONG                      vx_index;
 296     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
 297     const UINT *streamOffset = This->stateBlock->streamOffset;
 298     long                      SkipnStrides = startVertex + This->stateBlock->loadBaseVertexIndex;
 299     BOOL                      pixelShader = use_ps(This);
 300     BOOL specular_fog = FALSE;
 301     UINT texture_stages = GL_LIMITS(texture_stages);
 302     const BYTE *texCoords[WINED3DDP_MAXTEXCOORD];
 303     const BYTE *diffuse = NULL, *specular = NULL, *normal = NULL, *position = NULL;
 304     DWORD tex_mask = 0;
 305
 306     TRACE("Using slow vertex array code\n");
 307
 308     /* Variable Initialization */
 309     if (idxSize != 0) {
 310         /* Immediate mode drawing can't make use of indices in a vbo - get the data from the index buffer.
 311          * If the index buffer has no vbo(not supported or other reason), or with user pointer drawing
 312          * idxData will be != NULL
 313          */
 314         if(idxData == NULL) {
 315             idxData = ((IWineD3DIndexBufferImpl *) This->stateBlock->pIndexData)->resource.allocatedMemory;
 316         }
 317
 318         if (idxSize == 2) pIdxBufS = (const WORD *) idxData;
 319         else pIdxBufL = (const DWORD *) idxData;
 320     } else if (idxData) {
 321         ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
 322         return;
 323     }
 324
 325     /* Start drawing in GL */
 326     VTRACE(("glBegin(%x)\n", glPrimType));
 327     glBegin(glPrimType);
 328
 329     if (sd->u.s.position.lpData) position = sd->u.s.position.lpData + streamOffset[sd->u.s.position.streamNo];
 330
 331     if (sd->u.s.normal.lpData) normal = sd->u.s.normal.lpData + streamOffset[sd->u.s.normal.streamNo];
 332     else glNormal3f(0, 0, 0);
 333
 334     if (sd->u.s.diffuse.lpData) diffuse = sd->u.s.diffuse.lpData + streamOffset[sd->u.s.diffuse.streamNo];
 335     else glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 336     if (This->activeContext->num_untracked_materials && sd->u.s.diffuse.dwType != WINED3DDECLTYPE_D3DCOLOR)
 337         FIXME("Implement diffuse color tracking from %s\n", debug_d3ddecltype(sd->u.s.diffuse.dwType));
 338
 339     if (sd->u.s.specular.lpData)
 340     {
 341         specular = sd->u.s.specular.lpData + streamOffset[sd->u.s.specular.streamNo];
 342
 343         /* special case where the fog density is stored in the specular alpha channel */
 344         if (This->stateBlock->renderState[WINED3DRS_FOGENABLE]
 345                 && (This->stateBlock->renderState[WINED3DRS_FOGVERTEXMODE] == WINED3DFOG_NONE
 346                     || sd->u.s.position.dwType == WINED3DDECLTYPE_FLOAT4)
 347                 && This->stateBlock->renderState[WINED3DRS_FOGTABLEMODE] == WINED3DFOG_NONE)
 348         {
 349             if (GL_SUPPORT(EXT_FOG_COORD))
 350             {
 351                 if (sd->u.s.specular.dwType == WINED3DDECLTYPE_D3DCOLOR) specular_fog = TRUE;
 352                 else FIXME("Implement fog coordinates from %s\n", debug_d3ddecltype(sd->u.s.specular.dwType));
 353             }
 354             else
 355             {
 356                 static BOOL warned;
 357
 358                 if (!warned)
 359                 {
 360                     /* TODO: Use the fog table code from old ddraw */
 361                     FIXME("Implement fog for transformed vertices in software\n");
 362                     warned = TRUE;
 363                 }
 364             }
 365         }
 366     }
 367     else if (GL_SUPPORT(EXT_SECONDARY_COLOR))
 368     {
 369         GL_EXTCALL(glSecondaryColor3fEXT)(0, 0, 0);
 370     }
 371
 372     for (textureNo = 0; textureNo < texture_stages; ++textureNo)
 373     {
 374         int coordIdx = This->stateBlock->textureState[textureNo][WINED3DTSS_TEXCOORDINDEX];
 375         int texture_idx = This->texUnitMap[textureNo];
 376
 377         if (!GL_SUPPORT(ARB_MULTITEXTURE) && textureNo > 0)
 378         {
 379             FIXME("Program using multiple concurrent textures which this opengl implementation doesn't support\n");
 380             continue;
 381         }
 382
 383         if (!pixelShader && !This->stateBlock->textures[textureNo]) continue;
 384
 385         if (texture_idx == -1) continue;
 386
 387         if (coordIdx > 7)
 388         {
 389             TRACE("tex: %d - Skip tex coords, as being system generated\n", textureNo);
 390             continue;
 391         }
 392         else if (coordIdx < 0)
 393         {
 394             FIXME("tex: %d - Coord index %d is less than zero, expect a crash.\n", textureNo, coordIdx);
 395             continue;
 396         }
 397
 398         if(sd->u.s.texCoords[coordIdx].lpData)
 399         {
 400             texCoords[coordIdx] =
 401                     sd->u.s.texCoords[coordIdx].lpData + streamOffset[sd->u.s.texCoords[coordIdx].streamNo];
 402             tex_mask |= (1 << textureNo);
 403         }
 404         else
 405         {
 406             TRACE("tex: %d - Skipping tex coords, as no data supplied\n", textureNo);
 407             if (GL_SUPPORT(ARB_MULTITEXTURE))
 408                 GL_EXTCALL(glMultiTexCoord4fARB(GL_TEXTURE0_ARB + texture_idx, 0, 0, 0, 1));
 409             else
 410                 glTexCoord4f(0, 0, 0, 1);
 411         }
 412     }
 413
 414     /* We shouldn't start this function if any VBO is involved. Should I put a safety check here?
 415      * Guess it's not necessary(we crash then anyway) and would only eat CPU time
 416      */
 417
 418     /* For each primitive */
 419     for (vx_index = 0; vx_index < NumVertexes; ++vx_index) {
 420         UINT texture, tmp_tex_mask;
 421         /* Blending data and Point sizes are not supported by this function. They are not supported by the fixed
 422          * function pipeline at all. A Fixme for them is printed after decoding the vertex declaration
 423          */
 424
 425         /* For indexed data, we need to go a few more strides in */
 426         if (idxData != NULL) {
 427
 428             /* Indexed so work out the number of strides to skip */
 429             if (idxSize == 2) {
 430                 VTRACE(("Idx for vertex %u = %u\n", vx_index, pIdxBufS[startIdx+vx_index]));
 431                 SkipnStrides = pIdxBufS[startIdx + vx_index] + This->stateBlock->loadBaseVertexIndex;
 432             } else {
 433                 VTRACE(("Idx for vertex %u = %u\n", vx_index, pIdxBufL[startIdx+vx_index]));
 434                 SkipnStrides = pIdxBufL[startIdx + vx_index] + This->stateBlock->loadBaseVertexIndex;
 435             }
 436         }
 437
 438         tmp_tex_mask = tex_mask;
 439         for (texture = 0; tmp_tex_mask; tmp_tex_mask >>= 1, ++texture)
 440         {
 441             int coord_idx;
 442             const void *ptr;
 443             int texture_idx;
 444
 445             if (!(tmp_tex_mask & 1)) continue;
 446
 447             coord_idx = This->stateBlock->textureState[texture][WINED3DTSS_TEXCOORDINDEX];
 448             ptr = texCoords[coord_idx] + (SkipnStrides * sd->u.s.texCoords[coord_idx].dwStride);
 449
 450             texture_idx = This->texUnitMap[texture];
 451             multi_texcoord_funcs[sd->u.s.texCoords[coord_idx].dwType](GL_TEXTURE0_ARB + texture_idx, ptr);
 452         }
 453
 454         /* Diffuse -------------------------------- */
 455         if (diffuse) {
 456             const void *ptrToCoords = diffuse + SkipnStrides * sd->u.s.diffuse.dwStride;
 457
 458             diffuse_funcs[sd->u.s.diffuse.dwType](ptrToCoords);
 459             if(This->activeContext->num_untracked_materials) {
 460                 DWORD diffuseColor = ((const DWORD *)ptrToCoords)[0];
 461                 unsigned char i;
 462                 float color[4];
 463
 464                 color[0] = D3DCOLOR_B_R(diffuseColor) / 255.0;
 465                 color[1] = D3DCOLOR_B_G(diffuseColor) / 255.0;
 466                 color[2] = D3DCOLOR_B_B(diffuseColor) / 255.0;
 467                 color[3] = D3DCOLOR_B_A(diffuseColor) / 255.0;
 468
 469                 for(i = 0; i < This->activeContext->num_untracked_materials; i++) {
 470                     glMaterialfv(GL_FRONT_AND_BACK, This->activeContext->untracked_materials[i], color);
 471                 }
 472             }
 473         }
 474
 475         /* Specular ------------------------------- */
 476         if (specular) {
 477             const void *ptrToCoords = specular + SkipnStrides * sd->u.s.specular.dwStride;
 478
 479             specular_funcs[sd->u.s.specular.dwType](ptrToCoords);
 480
 481             if (specular_fog)
 482             {
 483                 DWORD specularColor = *(const DWORD *)ptrToCoords;
 484                 GL_EXTCALL(glFogCoordfEXT(specularColor >> 24));
 485             }
 486         }
 487
 488         /* Normal -------------------------------- */
 489         if (normal != NULL) {
 490             const void *ptrToCoords = normal + SkipnStrides * sd->u.s.normal.dwStride;
 491             normal_funcs[sd->u.s.normal.dwType](ptrToCoords);
 492         }
 493
 494         /* Position -------------------------------- */
 495         if (position) {
 496             const void *ptrToCoords = position + SkipnStrides * sd->u.s.position.dwStride;
 497             position_funcs[sd->u.s.position.dwType](ptrToCoords);
 498         }
 499
 500         /* For non indexed mode, step onto next parts */
 501         if (idxData == NULL) {
 502             ++SkipnStrides;
 503         }
 504     }
 505
 506     glEnd();
 507     checkGLcall("glEnd and previous calls");
 508 }
 509
 510 static inline void send_attribute(IWineD3DDeviceImpl *This, const DWORD type, const UINT index, const void *ptr) {
 511     switch(type) {
 512         case WINED3DDECLTYPE_FLOAT1:
 513             GL_EXTCALL(glVertexAttrib1fvARB(index, (const float *)ptr));
 514             break;
 515         case WINED3DDECLTYPE_FLOAT2:
 516             GL_EXTCALL(glVertexAttrib2fvARB(index, (const float *)ptr));
 517             break;
 518         case WINED3DDECLTYPE_FLOAT3:
 519             GL_EXTCALL(glVertexAttrib3fvARB(index, (const float *)ptr));
 520             break;
 521         case WINED3DDECLTYPE_FLOAT4:
 522             GL_EXTCALL(glVertexAttrib4fvARB(index, (const float *)ptr));
 523             break;
 524
 525         case WINED3DDECLTYPE_UBYTE4:
 526             GL_EXTCALL(glVertexAttrib4ubvARB(index, ptr));
 527             break;
 528         case WINED3DDECLTYPE_UBYTE4N:
 529         case WINED3DDECLTYPE_D3DCOLOR:
 530             GL_EXTCALL(glVertexAttrib4NubvARB(index, ptr));
 531             break;
 532
 533         case WINED3DDECLTYPE_SHORT2:
 534             GL_EXTCALL(glVertexAttrib4svARB(index, (const GLshort *)ptr));
 535             break;
 536         case WINED3DDECLTYPE_SHORT4:
 537             GL_EXTCALL(glVertexAttrib4svARB(index, (const GLshort *)ptr));
 538             break;
 539
 540         case WINED3DDECLTYPE_SHORT2N:
 541         {
 542             GLshort s[4] = {((const GLshort *)ptr)[0], ((const GLshort *)ptr)[1], 0, 1};
 543             GL_EXTCALL(glVertexAttrib4NsvARB(index, s));
 544             break;
 545         }
 546         case WINED3DDECLTYPE_USHORT2N:
 547         {
 548             GLushort s[4] = {((const GLushort *)ptr)[0], ((const GLushort *)ptr)[1], 0, 1};
 549             GL_EXTCALL(glVertexAttrib4NusvARB(index, s));
 550             break;
 551         }
 552         case WINED3DDECLTYPE_SHORT4N:
 553             GL_EXTCALL(glVertexAttrib4NsvARB(index, (const GLshort *)ptr));
 554             break;
 555         case WINED3DDECLTYPE_USHORT4N:
 556             GL_EXTCALL(glVertexAttrib4NusvARB(index, (const GLushort *)ptr));
 557             break;
 558
 559         case WINED3DDECLTYPE_UDEC3:
 560             FIXME("Unsure about WINED3DDECLTYPE_UDEC3\n");
 561             /*glVertexAttrib3usvARB(instancedData[j], (GLushort *) ptr); Does not exist */
 562             break;
 563         case WINED3DDECLTYPE_DEC3N:
 564             FIXME("Unsure about WINED3DDECLTYPE_DEC3N\n");
 565             /*glVertexAttrib3NusvARB(instancedData[j], (GLushort *) ptr); Does not exist */
 566             break;
 567
 568         case WINED3DDECLTYPE_FLOAT16_2:
 569             /* Are those 16 bit floats. C doesn't have a 16 bit float type. I could read the single bits and calculate a 4
 570              * byte float according to the IEEE standard
 571              */
 572             if (GL_SUPPORT(NV_HALF_FLOAT)) {
 573                 GL_EXTCALL(glVertexAttrib2hvNV(index, (const GLhalfNV *)ptr));
 574             } else {
 575                 float x = float_16_to_32(((const unsigned short *)ptr) + 0);
 576                 float y = float_16_to_32(((const unsigned short *)ptr) + 1);
 577                 GL_EXTCALL(glVertexAttrib2fARB(index, x, y));
 578             }
 579             break;
 580         case WINED3DDECLTYPE_FLOAT16_4:
 581             if (GL_SUPPORT(NV_HALF_FLOAT)) {
 582                 GL_EXTCALL(glVertexAttrib4hvNV(index, (const GLhalfNV *)ptr));
 583             } else {
 584                 float x = float_16_to_32(((const unsigned short *)ptr) + 0);
 585                 float y = float_16_to_32(((const unsigned short *)ptr) + 1);
 586                 float z = float_16_to_32(((const unsigned short *)ptr) + 2);
 587                 float w = float_16_to_32(((const unsigned short *)ptr) + 3);
 588                 GL_EXTCALL(glVertexAttrib4fARB(index, x, y, z, w));
 589             }
 590             break;
 591
 592         case WINED3DDECLTYPE_UNUSED:
 593         default:
 594             ERR("Unexpected attribute declaration: %d\n", type);
 595             break;
 596     }
 597 }
 598
 599 static void drawStridedSlowVs(IWineD3DDevice *iface, const WineDirect3DVertexStridedData *sd, UINT numberOfVertices,
 600         GLenum glPrimitiveType, const void *idxData, short idxSize, ULONG minIndex, ULONG startIdx, ULONG startVertex)
 601 {
 602     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *) iface;
 603     long                      SkipnStrides = startVertex + This->stateBlock->loadBaseVertexIndex;
 604     const WORD                *pIdxBufS     = NULL;
 605     const DWORD               *pIdxBufL     = NULL;
 606     ULONG                      vx_index;
 607     int i;
 608     IWineD3DStateBlockImpl *stateblock = This->stateBlock;
 609     const BYTE *ptr;
 610
 611     if (idxSize != 0) {
 612         /* Immediate mode drawing can't make use of indices in a vbo - get the data from the index buffer.
 613          * If the index buffer has no vbo(not supported or other reason), or with user pointer drawing
 614          * idxData will be != NULL
 615          */
 616         if(idxData == NULL) {
 617             idxData = ((IWineD3DIndexBufferImpl *) stateblock->pIndexData)->resource.allocatedMemory;
 618         }
 619
 620         if (idxSize == 2) pIdxBufS = (const WORD *) idxData;
 621         else pIdxBufL = (const DWORD *) idxData;
 622     } else if (idxData) {
 623         ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
 624         return;
 625     }
 626
 627     /* Start drawing in GL */
 628     VTRACE(("glBegin(%x)\n", glPrimitiveType));
 629     glBegin(glPrimitiveType);
 630
 631     for (vx_index = 0; vx_index < numberOfVertices; ++vx_index) {
 632         if (idxData != NULL) {
 633
 634             /* Indexed so work out the number of strides to skip */
 635             if (idxSize == 2) {
 636                 VTRACE(("Idx for vertex %d = %d\n", vx_index, pIdxBufS[startIdx+vx_index]));
 637                 SkipnStrides = pIdxBufS[startIdx + vx_index] + stateblock->loadBaseVertexIndex;
 638             } else {
 639                 VTRACE(("Idx for vertex %d = %d\n", vx_index, pIdxBufL[startIdx+vx_index]));
 640                 SkipnStrides = pIdxBufL[startIdx + vx_index] + stateblock->loadBaseVertexIndex;
 641             }
 642         }
 643
 644         for(i = MAX_ATTRIBS - 1; i >= 0; i--) {
 645             if(!sd->u.input[i].lpData) continue;
 646
 647             ptr = sd->u.input[i].lpData +
 648                   sd->u.input[i].dwStride * SkipnStrides +
 649                   stateblock->streamOffset[sd->u.input[i].streamNo];
 650
 651             send_attribute(This, sd->u.input[i].dwType, i, ptr);
 652         }
 653         SkipnStrides++;
 654     }
 655
 656     glEnd();
 657 }
 658
 659 static inline void drawStridedInstanced(IWineD3DDevice *iface, const WineDirect3DVertexStridedData *sd,
 660         UINT numberOfVertices, GLenum glPrimitiveType, const void *idxData, short idxSize, ULONG minIndex,
 661         ULONG startIdx, ULONG startVertex)
 662 {
 663     UINT numInstances = 0, i;
 664     int numInstancedAttribs = 0, j;
 665     UINT instancedData[sizeof(sd->u.input) / sizeof(sd->u.input[0]) /* 16 */];
 666     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *) iface;
 667     IWineD3DStateBlockImpl *stateblock = This->stateBlock;
 668
 669     if (idxSize == 0) {
 670         /* This is a nasty thing. MSDN says no hardware supports that and apps have to use software vertex processing.
 671          * We don't support this for now
 672          *
 673          * Shouldn't be too hard to support with opengl, in theory just call glDrawArrays instead of drawElements.
 674          * But the StreamSourceFreq value has a different meaning in that situation.
 675          */
 676         FIXME("Non-indexed instanced drawing is not supported\n");
 677         return;
 678     }
 679
 680     TRACE("(%p) : glElements(%x, %d, %d, ...)\n", This, glPrimitiveType, numberOfVertices, minIndex);
 681     idxData = idxData == (void *)-1 ? NULL : idxData;
 682
 683     /* First, figure out how many instances we have to draw */
 684     for(i = 0; i < MAX_STREAMS; i++) {
 685         /* Look at the streams and take the first one which matches */
 686         if(((stateblock->streamFlags[i] & WINED3DSTREAMSOURCE_INSTANCEDATA) || (stateblock->streamFlags[i] & WINED3DSTREAMSOURCE_INDEXEDDATA)) && stateblock->streamSource[i]) {
 687             /* D3D9 could set streamFreq 0 with (INSTANCEDATA or INDEXEDDATA) and then it is handled as 1. See d3d9/tests/visual.c-> stream_test() */
 688             if(stateblock->streamFreq[i] == 0){
 689                 numInstances = 1;
 690             } else {
 691                 numInstances = stateblock->streamFreq[i]; /* use the specified number of instances from the first matched stream. See d3d9/tests/visual.c-> stream_test() */
 692             }
 693             break; /* break, because only the first suitable value is interesting */
 694         }
 695     }
 696
 697     for(i = 0; i < sizeof(sd->u.input) / sizeof(sd->u.input[0]); i++) {
 698         if(stateblock->streamFlags[sd->u.input[i].streamNo] & WINED3DSTREAMSOURCE_INSTANCEDATA) {
 699             instancedData[numInstancedAttribs] = i;
 700             numInstancedAttribs++;
 701         }
 702     }
 703
 704     /* now draw numInstances instances :-) */
 705     for(i = 0; i < numInstances; i++) {
 706         /* Specify the instanced attributes using immediate mode calls */
 707         for(j = 0; j < numInstancedAttribs; j++) {
 708             const BYTE *ptr = sd->u.input[instancedData[j]].lpData +
 709                         sd->u.input[instancedData[j]].dwStride * i +
 710                         stateblock->streamOffset[sd->u.input[instancedData[j]].streamNo];
 711             if(sd->u.input[instancedData[j]].VBO) {
 712                 IWineD3DVertexBufferImpl *vb = (IWineD3DVertexBufferImpl *) stateblock->streamSource[sd->u.input[instancedData[j]].streamNo];
 713                 ptr += (long) vb->resource.allocatedMemory;
 714             }
 715
 716             send_attribute(This, sd->u.input[instancedData[j]].dwType, instancedData[j], ptr);
 717         }
 718
 719         glDrawElements(glPrimitiveType, numberOfVertices, idxSize == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
 720                     (const char *)idxData+(idxSize * startIdx));
 721         checkGLcall("glDrawElements");
 722     }
 723 }
 724
 725 static inline void remove_vbos(IWineD3DDeviceImpl *This, WineDirect3DVertexStridedData *s) {
 726     unsigned char i;
 727     IWineD3DVertexBufferImpl *vb;
 728
 729     if(s->u.s.position.VBO) {
 730         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.position.streamNo];
 731         s->u.s.position.VBO = 0;
 732         s->u.s.position.lpData = (BYTE *) ((unsigned long) s->u.s.position.lpData + (unsigned long) vb->resource.allocatedMemory);
 733     }
 734     if(s->u.s.blendWeights.VBO) {
 735         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.blendWeights.streamNo];
 736         s->u.s.blendWeights.VBO = 0;
 737         s->u.s.blendWeights.lpData = (BYTE *) ((unsigned long) s->u.s.blendWeights.lpData + (unsigned long) vb->resource.allocatedMemory);
 738     }
 739     if(s->u.s.blendMatrixIndices.VBO) {
 740         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.blendMatrixIndices.streamNo];
 741         s->u.s.blendMatrixIndices.VBO = 0;
 742         s->u.s.blendMatrixIndices.lpData = (BYTE *) ((unsigned long) s->u.s.blendMatrixIndices.lpData + (unsigned long) vb->resource.allocatedMemory);
 743     }
 744     if(s->u.s.normal.VBO) {
 745         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.normal.streamNo];
 746         s->u.s.normal.VBO = 0;
 747         s->u.s.normal.lpData = (BYTE *) ((unsigned long) s->u.s.normal.lpData + (unsigned long) vb->resource.allocatedMemory);
 748     }
 749     if(s->u.s.pSize.VBO) {
 750         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.pSize.streamNo];
 751         s->u.s.pSize.VBO = 0;
 752         s->u.s.pSize.lpData = (BYTE *) ((unsigned long) s->u.s.pSize.lpData + (unsigned long) vb->resource.allocatedMemory);
 753     }
 754     if(s->u.s.diffuse.VBO) {
 755         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.diffuse.streamNo];
 756         s->u.s.diffuse.VBO = 0;
 757         s->u.s.diffuse.lpData = (BYTE *) ((unsigned long) s->u.s.diffuse.lpData + (unsigned long) vb->resource.allocatedMemory);
 758     }
 759     if(s->u.s.specular.VBO) {
 760         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.specular.streamNo];
 761         s->u.s.specular.VBO = 0;
 762         s->u.s.specular.lpData = (BYTE *) ((unsigned long) s->u.s.specular.lpData + (unsigned long) vb->resource.allocatedMemory);
 763     }
 764     for(i = 0; i < WINED3DDP_MAXTEXCOORD; i++) {
 765         if(s->u.s.texCoords[i].VBO) {
 766             vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.texCoords[i].streamNo];
 767             s->u.s.texCoords[i].VBO = 0;
 768             s->u.s.texCoords[i].lpData = (BYTE *) ((unsigned long) s->u.s.texCoords[i].lpData + (unsigned long) vb->resource.allocatedMemory);
 769         }
 770     }
 771     if(s->u.s.position2.VBO) {
 772         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.position2.streamNo];
 773         s->u.s.position2.VBO = 0;
 774         s->u.s.position2.lpData = (BYTE *) ((unsigned long) s->u.s.position2.lpData + (unsigned long) vb->resource.allocatedMemory);
 775     }
 776     if(s->u.s.normal2.VBO) {
 777         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.normal2.streamNo];
 778         s->u.s.normal2.VBO = 0;
 779         s->u.s.normal2.lpData = (BYTE *) ((unsigned long) s->u.s.normal2.lpData + (unsigned long) vb->resource.allocatedMemory);
 780     }
 781     if(s->u.s.tangent.VBO) {
 782         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.tangent.streamNo];
 783         s->u.s.tangent.VBO = 0;
 784         s->u.s.tangent.lpData = (BYTE *) ((unsigned long) s->u.s.tangent.lpData + (unsigned long) vb->resource.allocatedMemory);
 785     }
 786     if(s->u.s.binormal.VBO) {
 787         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.binormal.streamNo];
 788         s->u.s.binormal.VBO = 0;
 789         s->u.s.binormal.lpData = (BYTE *) ((unsigned long) s->u.s.binormal.lpData + (unsigned long) vb->resource.allocatedMemory);
 790     }
 791     if(s->u.s.tessFactor.VBO) {
 792         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.tessFactor.streamNo];
 793         s->u.s.tessFactor.VBO = 0;
 794         s->u.s.tessFactor.lpData = (BYTE *) ((unsigned long) s->u.s.tessFactor.lpData + (unsigned long) vb->resource.allocatedMemory);
 795     }
 796     if(s->u.s.fog.VBO) {
 797         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.fog.streamNo];
 798         s->u.s.fog.VBO = 0;
 799         s->u.s.fog.lpData = (BYTE *) ((unsigned long) s->u.s.fog.lpData + (unsigned long) vb->resource.allocatedMemory);
 800     }
 801     if(s->u.s.depth.VBO) {
 802         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.depth.streamNo];
 803         s->u.s.depth.VBO = 0;
 804         s->u.s.depth.lpData = (BYTE *) ((unsigned long) s->u.s.depth.lpData + (unsigned long) vb->resource.allocatedMemory);
 805     }
 806     if(s->u.s.sample.VBO) {
 807         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[s->u.s.sample.streamNo];
 808         s->u.s.sample.VBO = 0;
 809         s->u.s.sample.lpData = (BYTE *) ((unsigned long) s->u.s.sample.lpData + (unsigned long) vb->resource.allocatedMemory);
 810     }
 811 }
 812
 813 /* Routine common to the draw primitive and draw indexed primitive routines */
 814 void drawPrimitive(IWineD3DDevice *iface,
 815                    int PrimitiveType,
 816                    long NumPrimitives,
 817                    /* for Indexed: */
 818                    long  StartVertexIndex,
 819                    UINT  numberOfVertices,
 820                    long  StartIdx,
 821                    short idxSize,
 822                    const void *idxData,
 823                    int   minIndex) {
 824
 825     IWineD3DDeviceImpl           *This = (IWineD3DDeviceImpl *)iface;
 826     IWineD3DSurfaceImpl          *target;
 827     unsigned int i;
 828
 829     if (NumPrimitives == 0) return;
 830
 831     /* Invalidate the back buffer memory so LockRect will read it the next time */
 832     for(i = 0; i < GL_LIMITS(buffers); i++) {
 833         target = (IWineD3DSurfaceImpl *) This->render_targets[i];
 834         if (target) {
 835             IWineD3DSurface_LoadLocation((IWineD3DSurface *) target, SFLAG_INDRAWABLE, NULL);
 836             IWineD3DSurface_ModifyLocation((IWineD3DSurface *) target, SFLAG_INDRAWABLE, TRUE);
 837         }
 838     }
 839
 840     /* Signals other modules that a drawing is in progress and the stateblock finalized */
 841     This->isInDraw = TRUE;
 842
 843     ActivateContext(This, This->render_targets[0], CTXUSAGE_DRAWPRIM);
 844
 845     if (This->stencilBufferTarget) {
 846         /* Note that this depends on the ActivateContext call above to set
 847          * This->render_offscreen properly */
 848         DWORD location = This->render_offscreen ? SFLAG_DS_OFFSCREEN : SFLAG_DS_ONSCREEN;
 849         surface_load_ds_location(This->stencilBufferTarget, location);
 850         surface_modify_ds_location(This->stencilBufferTarget, location);
 851     }
 852
 853     /* Ok, we will be updating the screen from here onwards so grab the lock */
 854     ENTER_GL();
 855     {
 856         GLenum glPrimType;
 857         BOOL emulation = FALSE;
 858         const WineDirect3DVertexStridedData *strided = &This->strided_streams;
 859         WineDirect3DVertexStridedData stridedlcl;
 860         /* Ok, Work out which primitive is requested and how many vertexes that
 861            will be                                                              */
 862         UINT calculatedNumberOfindices = primitiveToGl(PrimitiveType, NumPrimitives, &glPrimType);
 863         if (numberOfVertices == 0 )
 864             numberOfVertices = calculatedNumberOfindices;
 865
 866         if(!use_vs(This)) {
 867             if(!This->strided_streams.u.s.position_transformed && This->activeContext->num_untracked_materials &&
 868                 This->stateBlock->renderState[WINED3DRS_LIGHTING]) {
 869                 static BOOL warned;
 870                 if (!warned) {
 871                     FIXME("Using software emulation because not all material properties could be tracked\n");
 872                     warned = TRUE;
 873                 } else {
 874                     TRACE("Using software emulation because not all material properties could be tracked\n");
 875                 }
 876                 emulation = TRUE;
 877             }
 878             else if(This->activeContext->fog_coord && This->stateBlock->renderState[WINED3DRS_FOGENABLE]) {
 879                 /* Either write a pipeline replacement shader or convert the specular alpha from unsigned byte
 880                  * to a float in the vertex buffer
 881                  */
 882                 static BOOL warned;
 883                 if (!warned) {
 884                     FIXME("Using software emulation because manual fog coordinates are provided\n");
 885                     warned = TRUE;
 886                 } else {
 887                     TRACE("Using software emulation because manual fog coordinates are provided\n");
 888                 }
 889                 emulation = TRUE;
 890             }
 891
 892             if(emulation) {
 893                 strided = &stridedlcl;
 894                 memcpy(&stridedlcl, &This->strided_streams, sizeof(stridedlcl));
 895                 remove_vbos(This, &stridedlcl);
 896             }
 897         }
 898
 899         if (This->useDrawStridedSlow || emulation) {
 900             /* Immediate mode drawing */
 901             if(use_vs(This)) {
 902                 static BOOL warned;
 903                 if (!warned) {
 904                     FIXME("Using immediate mode with vertex shaders for half float emulation\n");
 905                     warned = TRUE;
 906                 } else {
 907                     TRACE("Using immediate mode with vertex shaders for half float emulation\n");
 908                 }
 909                 drawStridedSlowVs(iface, strided, calculatedNumberOfindices, glPrimType,
 910                                   idxData, idxSize, minIndex, StartIdx, StartVertexIndex);
 911             } else {
 912                 drawStridedSlow(iface, strided, calculatedNumberOfindices,
 913                                 glPrimType, idxData, idxSize, minIndex, StartIdx, StartVertexIndex);
 914             }
 915         } else if(This->instancedDraw) {
 916             /* Instancing emulation with mixing immediate mode and arrays */
 917             drawStridedInstanced(iface, &This->strided_streams, calculatedNumberOfindices, glPrimType,
 918                             idxData, idxSize, minIndex, StartIdx, StartVertexIndex);
 919         } else {
 920             drawStridedFast(iface, calculatedNumberOfindices, glPrimType,
 921                             idxData, idxSize, minIndex, StartIdx, StartVertexIndex);
 922         }
 923     }
 924
 925     /* Finished updating the screen, restore lock */
 926     LEAVE_GL();
 927     TRACE("Done all gl drawing\n");
 928
 929     /* Diagnostics */
 930 #ifdef SHOW_FRAME_MAKEUP
 931     {
 932         static long int primCounter = 0;
 933         /* NOTE: set primCounter to the value reported by drawprim
 934            before you want to to write frame makeup to /tmp */
 935         if (primCounter >= 0) {
 936             WINED3DLOCKED_RECT r;
 937             char buffer[80];
 938             IWineD3DSurface_LockRect(This->render_targets[0], &r, NULL, WINED3DLOCK_READONLY);
 939             sprintf(buffer, "/tmp/backbuffer_%ld.tga", primCounter);
 940             TRACE("Saving screenshot %s\n", buffer);
 941             IWineD3DSurface_SaveSnapshot(This->render_targets[0], buffer);
 942             IWineD3DSurface_UnlockRect(This->render_targets[0]);
 943
 944 #ifdef SHOW_TEXTURE_MAKEUP
 945            {
 946             IWineD3DSurface *pSur;
 947             int textureNo;
 948             for (textureNo = 0; textureNo < MAX_COMBINED_SAMPLERS; ++textureNo) {
 949                 if (This->stateBlock->textures[textureNo] != NULL) {
 950                     sprintf(buffer, "/tmp/texture_%p_%ld_%d.tga", This->stateBlock->textures[textureNo], primCounter, textureNo);
 951                     TRACE("Saving texture %s\n", buffer);
 952                     if (IWineD3DBaseTexture_GetType(This->stateBlock->textures[textureNo]) == WINED3DRTYPE_TEXTURE) {
 953                             IWineD3DTexture_GetSurfaceLevel((IWineD3DTexture *)This->stateBlock->textures[textureNo], 0, &pSur);
 954                             IWineD3DSurface_SaveSnapshot(pSur, buffer);
 955                             IWineD3DSurface_Release(pSur);
 956                     } else  {
 957                         FIXME("base Texture isn't of type texture %d\n", IWineD3DBaseTexture_GetType(This->stateBlock->textures[textureNo]));
 958                     }
 959                 }
 960             }
 961            }
 962 #endif
 963         }
 964         TRACE("drawprim #%ld\n", primCounter);
 965         ++primCounter;
 966     }
 967 #endif
 968
 969     /* Control goes back to the device, stateblock values may change again */
 970     This->isInDraw = FALSE;
 971 }
 972
 973 static void normalize_normal(float *n) {
 974     float length = n[0] * n[0] + n[1] * n[1] + n[2] * n[2];
 975     if(length == 0.0) return;
 976     length = sqrt(length);
 977     n[0] = n[0] / length;
 978     n[1] = n[1] / length;
 979     n[2] = n[2] / length;
 980 }
 981
 982 /* Tesselates a high order rectangular patch into single triangles using gl evaluators
 983  *
 984  * The problem is that OpenGL does not offer a direct way to return the tesselated primitives,
 985  * and they can't be sent off for rendering directly either. Tesselating is slow, so we want
 986  * to cache the patches in a vertex buffer. But more importantly, gl can't bind generated
 987  * attributes to numbered shader attributes, so we have to store them and rebind them as needed
 988  * in drawprim.
 989  *
 990  * To read back, the opengl feedback mode is used. This creates a problem because we want
 991  * untransformed, unlit vertices, but feedback runs everything through transform and lighting.
 992  * Thus disable lighting and set identity matrices to get unmodified colors and positions.
 993  * To overcome clipping find the biggest x, y and z values of the vertices in the patch and scale
 994  * them to [-1.0;+1.0] and set the viewport up to scale them back.
 995  *
 996  * Normals are more tricky: Draw white vertices with 3 directional lights, and calculate the
 997  * resulting colors back to the normals.
 998  *
 999  * NOTE: This function activates a context for blitting, modifies matrices & viewport, but
1000  * does not restore it because normally a draw follows immediately afterwards. The caller is
1001  * responsible of taking care that either the gl states are restored, or the context activated
1002  * for drawing to reset the lastWasBlit flag.
1003  */
1004 HRESULT tesselate_rectpatch(IWineD3DDeviceImpl *This,
1005                             struct WineD3DRectPatch *patch) {
1006     unsigned int i, j, num_quads, out_vertex_size, buffer_size, d3d_out_vertex_size;
1007     float max_x = 0.0, max_y = 0.0, max_z = 0.0, neg_z = 0.0;
1008     WineDirect3DVertexStridedData strided;
1009     const BYTE *data;
1010     const WINED3DRECTPATCH_INFO *info = &patch->RectPatchInfo;
1011     DWORD vtxStride;
1012     GLenum feedback_type;
1013     GLfloat *feedbuffer;
1014
1015     /* First, locate the position data. This is provided in a vertex buffer in the stateblock.
1016      * Beware of vbos
1017      */
1018     memset(&strided, 0, sizeof(strided));
1019     primitiveDeclarationConvertToStridedData((IWineD3DDevice *) This, FALSE, &strided, NULL);
1020     if(strided.u.s.position.VBO) {
1021         IWineD3DVertexBufferImpl *vb;
1022         vb = (IWineD3DVertexBufferImpl *) This->stateBlock->streamSource[strided.u.s.position.streamNo];
1023         strided.u.s.position.lpData = (BYTE *) ((unsigned long) strided.u.s.position.lpData +
1024                                                 (unsigned long) vb->resource.allocatedMemory);
1025     }
1026     vtxStride = strided.u.s.position.dwStride;
1027     data = strided.u.s.position.lpData +
1028            vtxStride * info->Stride * info->StartVertexOffsetHeight +
1029            vtxStride * info->StartVertexOffsetWidth;
1030
1031     /* Not entirely sure about what happens with transformed vertices */
1032     if(strided.u.s.position_transformed) {
1033         FIXME("Transformed position in rectpatch generation\n");
1034     }
1035     if(vtxStride % sizeof(GLfloat)) {
1036         /* glMap2f reads vertex sizes in GLfloats, the d3d stride is in bytes.
1037          * I don't see how the stride could not be a multiple of 4, but make sure
1038          * to check it
1039          */
1040         ERR("Vertex stride is not a multiple of sizeof(GLfloat)\n");
1041     }
1042     if(info->Basis != WINED3DBASIS_BEZIER) {
1043         FIXME("Basis is %s, how to handle this?\n", debug_d3dbasis(info->Basis));
1044     }
1045     if(info->Degree != WINED3DDEGREE_CUBIC) {
1046         FIXME("Degree is %s, how to handle this?\n", debug_d3ddegree(info->Degree));
1047     }
1048
1049     /* First, get the boundary cube of the input data */
1050     for(j = 0; j < info->Height; j++) {
1051         for(i = 0; i < info->Width; i++) {
1052             const float *v = (const float *)(data + vtxStride * i + vtxStride * info->Stride * j);
1053             if(fabs(v[0]) > max_x) max_x = fabs(v[0]);
1054             if(fabs(v[1]) > max_y) max_y = fabs(v[1]);
1055             if(fabs(v[2]) > max_z) max_z = fabs(v[2]);
1056             if(v[2] < neg_z) neg_z = v[2];
1057         }
1058     }
1059
1060     /* This needs some improvements in the vertex decl code */
1061     FIXME("Cannot find data to generate. Only generating position and normals\n");
1062     patch->has_normals = TRUE;
1063     patch->has_texcoords = FALSE;
1064
1065     /* Simply activate the context for blitting. This disables all the things we don't want and
1066      * takes care of dirtifying. Dirtifying is preferred over pushing / popping, since drawing the
1067      * patch (as opposed to normal draws) will most likely need different changes anyway
1068      */
1069     ActivateContext(This, This->lastActiveRenderTarget, CTXUSAGE_BLIT);
1070     ENTER_GL();
1071
1072     glMatrixMode(GL_PROJECTION);
1073     checkGLcall("glMatrixMode(GL_PROJECTION)");
1074     glLoadIdentity();
1075     checkGLcall("glLoadIndentity()");
1076     glScalef(1 / (max_x) , 1 / (max_y), max_z == 0 ? 1 : 1 / ( 2 * max_z));
1077     glTranslatef(0, 0, 0.5);
1078     checkGLcall("glScalef");
1079     glViewport(-max_x, -max_y, 2 * (max_x), 2 * (max_y));
1080     checkGLcall("glViewport");
1081
1082     /* Some states to take care of. If we're in wireframe opengl will produce lines, and confuse
1083      * our feedback buffer parser
1084      */
1085     glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
1086     checkGLcall("glPolygonMode(GL_FRONT_AND_BACK, GL_FILL)");
1087     IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_FILLMODE));
1088     if(patch->has_normals) {
1089         static const GLfloat black[] = {0, 0, 0, 0};
1090         static const GLfloat red[]   = {1, 0, 0, 0};
1091         static const GLfloat green[] = {0, 1, 0, 0};
1092         static const GLfloat blue[]  = {0, 0, 1, 0};
1093         static const GLfloat white[] = {1, 1, 1, 1};
1094         glEnable(GL_LIGHTING);
1095         checkGLcall("glEnable(GL_LIGHTING)");
1096         glLightModelfv(GL_LIGHT_MODEL_AMBIENT, black);
1097         checkGLcall("glLightModel for MODEL_AMBIENT");
1098         IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_AMBIENT));
1099
1100         for(i = 3; i < GL_LIMITS(lights); i++) {
1101             glDisable(GL_LIGHT0 + i);
1102             checkGLcall("glDisable(GL_LIGHT0 + i)");
1103             IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(i));
1104         }
1105
1106         IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(0));
1107         glLightfv(GL_LIGHT0, GL_DIFFUSE, red);
1108         glLightfv(GL_LIGHT0, GL_SPECULAR, black);
1109         glLightfv(GL_LIGHT0, GL_AMBIENT, black);
1110         glLightfv(GL_LIGHT0, GL_POSITION, red);
1111         glEnable(GL_LIGHT0);
1112         checkGLcall("Setting up light 1\n");
1113         IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(1));
1114         glLightfv(GL_LIGHT1, GL_DIFFUSE, green);
1115         glLightfv(GL_LIGHT1, GL_SPECULAR, black);
1116         glLightfv(GL_LIGHT1, GL_AMBIENT, black);
1117         glLightfv(GL_LIGHT1, GL_POSITION, green);
1118         glEnable(GL_LIGHT1);
1119         checkGLcall("Setting up light 2\n");
1120         IWineD3DDeviceImpl_MarkStateDirty(This, STATE_ACTIVELIGHT(2));
1121         glLightfv(GL_LIGHT2, GL_DIFFUSE, blue);
1122         glLightfv(GL_LIGHT2, GL_SPECULAR, black);
1123         glLightfv(GL_LIGHT2, GL_AMBIENT, black);
1124         glLightfv(GL_LIGHT2, GL_POSITION, blue);
1125         glEnable(GL_LIGHT2);
1126         checkGLcall("Setting up light 3\n");
1127
1128         IWineD3DDeviceImpl_MarkStateDirty(This, STATE_MATERIAL);
1129         IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_COLORVERTEX));
1130         glDisable(GL_COLOR_MATERIAL);
1131         glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, black);
1132         glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, black);
1133         glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, white);
1134         checkGLcall("Setting up materials\n");
1135     }
1136
1137     /* Enable the needed maps.
1138      * GL_MAP2_VERTEX_3 is needed for positional data.
1139      * GL_AUTO_NORMAL to generate normals from the position. Do not use GL_MAP2_NORMAL.
1140      * GL_MAP2_TEXTURE_COORD_4 for texture coords
1141      */
1142     num_quads = ceilf(patch->numSegs[0]) * ceilf(patch->numSegs[1]);
1143     out_vertex_size = 3 /* position */;
1144     d3d_out_vertex_size = 3;
1145     glEnable(GL_MAP2_VERTEX_3);
1146     if(patch->has_normals && patch->has_texcoords) {
1147         FIXME("Texcoords not handled yet\n");
1148         feedback_type = GL_3D_COLOR_TEXTURE;
1149         out_vertex_size += 8;
1150         d3d_out_vertex_size += 7;
1151         glEnable(GL_AUTO_NORMAL);
1152         glEnable(GL_MAP2_TEXTURE_COORD_4);
1153     } else if(patch->has_texcoords) {
1154         FIXME("Texcoords not handled yet\n");
1155         feedback_type = GL_3D_COLOR_TEXTURE;
1156         out_vertex_size += 7;
1157         d3d_out_vertex_size += 4;
1158         glEnable(GL_MAP2_TEXTURE_COORD_4);
1159     } else if(patch->has_normals) {
1160         feedback_type = GL_3D_COLOR;
1161         out_vertex_size += 4;
1162         d3d_out_vertex_size += 3;
1163         glEnable(GL_AUTO_NORMAL);
1164     } else {
1165         feedback_type = GL_3D;
1166     }
1167     checkGLcall("glEnable vertex attrib generation");
1168
1169     buffer_size = num_quads * out_vertex_size * 2 /* triangle list */ * 3 /* verts per tri */
1170                    + 4 * num_quads /* 2 triangle markers per quad + num verts in tri */;
1171     feedbuffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, buffer_size * sizeof(float) * 8);
1172
1173     glMap2f(GL_MAP2_VERTEX_3,
1174             0, 1, vtxStride / sizeof(float), info->Width,
1175             0, 1, info->Stride * vtxStride / sizeof(float), info->Height,
1176             (const GLfloat *)data);
1177     checkGLcall("glMap2f");
1178     if(patch->has_texcoords) {
1179         glMap2f(GL_MAP2_TEXTURE_COORD_4,
1180                 0, 1, vtxStride / sizeof(float), info->Width,
1181                 0, 1, info->Stride * vtxStride / sizeof(float), info->Height,
1182                 (const GLfloat *)data);
1183         checkGLcall("glMap2f");
1184     }
1185     glMapGrid2f(ceilf(patch->numSegs[0]), 0.0, 1.0, ceilf(patch->numSegs[1]), 0.0, 1.0);
1186     checkGLcall("glMapGrid2f");
1187
1188     glFeedbackBuffer(buffer_size * 2, feedback_type, feedbuffer);
1189     checkGLcall("glFeedbackBuffer");
1190     glRenderMode(GL_FEEDBACK);
1191
1192     glEvalMesh2(GL_FILL, 0, ceilf(patch->numSegs[0]), 0, ceilf(patch->numSegs[1]));
1193     checkGLcall("glEvalMesh2\n");
1194
1195     i = glRenderMode(GL_RENDER);
1196     if(i == -1) {
1197         LEAVE_GL();
1198         ERR("Feedback failed. Expected %d elements back\n", buffer_size);
1199         Sleep(10000);
1200         HeapFree(GetProcessHeap(), 0, feedbuffer);
1201         return WINED3DERR_DRIVERINTERNALERROR;
1202     } else if(i != buffer_size) {
1203         LEAVE_GL();
1204         ERR("Unexpected amount of elements returned. Expected %d, got %d\n", buffer_size, i);
1205         Sleep(10000);
1206         HeapFree(GetProcessHeap(), 0, feedbuffer);
1207         return WINED3DERR_DRIVERINTERNALERROR;
1208     } else {
1209         TRACE("Got %d elements as expected\n", i);
1210     }
1211
1212     HeapFree(GetProcessHeap(), 0, patch->mem);
1213     patch->mem = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, num_quads * 6 * d3d_out_vertex_size * sizeof(float) * 8);
1214     i = 0;
1215     for(j = 0; j < buffer_size; j += (3 /* num verts */ * out_vertex_size + 2 /* tri marker */)) {
1216         if(feedbuffer[j] != GL_POLYGON_TOKEN) {
1217             ERR("Unexpected token: %f\n", feedbuffer[j]);
1218             continue;
1219         }
1220         if(feedbuffer[j + 1] != 3) {
1221             ERR("Unexpected polygon: %f corners\n", feedbuffer[j + 1]);
1222             continue;
1223         }
1224         /* Somehow there are different ideas about back / front facing, so fix up the
1225          * vertex order
1226          */
1227         patch->mem[i + 0] =  feedbuffer[j + out_vertex_size * 2 + 2]; /* x, triangle 2 */
1228         patch->mem[i + 1] =  feedbuffer[j + out_vertex_size * 2 + 3]; /* y, triangle 2 */
1229         patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 2 + 4] - 0.5) * 4 * max_z; /* z, triangle 3 */
1230         if(patch->has_normals) {
1231             patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 2 + 5];
1232             patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 2 + 6];
1233             patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 2 + 7];
1234         }
1235         i += d3d_out_vertex_size;
1236
1237         patch->mem[i + 0] =  feedbuffer[j + out_vertex_size * 1 + 2]; /* x, triangle 2 */
1238         patch->mem[i + 1] =  feedbuffer[j + out_vertex_size * 1 + 3]; /* y, triangle 2 */
1239         patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 1 + 4] - 0.5) * 4 * max_z; /* z, triangle 2 */
1240         if(patch->has_normals) {
1241             patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 1 + 5];
1242             patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 1 + 6];
1243             patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 1 + 7];
1244         }
1245         i += d3d_out_vertex_size;
1246
1247         patch->mem[i + 0] =  feedbuffer[j + out_vertex_size * 0 + 2]; /* x, triangle 1 */
1248         patch->mem[i + 1] =  feedbuffer[j + out_vertex_size * 0 + 3]; /* y, triangle 1 */
1249         patch->mem[i + 2] = (feedbuffer[j + out_vertex_size * 0 + 4] - 0.5) * 4 * max_z; /* z, triangle 1 */
1250         if(patch->has_normals) {
1251             patch->mem[i + 3] = feedbuffer[j + out_vertex_size * 0 + 5];
1252             patch->mem[i + 4] = feedbuffer[j + out_vertex_size * 0 + 6];
1253             patch->mem[i + 5] = feedbuffer[j + out_vertex_size * 0 + 7];
1254         }
1255         i += d3d_out_vertex_size;
1256     }
1257
1258     if(patch->has_normals) {
1259         /* Now do the same with reverse light directions */
1260         static const GLfloat x[] = {-1,  0,  0, 0};
1261         static const GLfloat y[] = { 0, -1,  0, 0};
1262         static const GLfloat z[] = { 0,  0, -1, 0};
1263         glLightfv(GL_LIGHT0, GL_POSITION, x);
1264         glLightfv(GL_LIGHT1, GL_POSITION, y);
1265         glLightfv(GL_LIGHT2, GL_POSITION, z);
1266         checkGLcall("Setting up reverse light directions\n");
1267
1268         glRenderMode(GL_FEEDBACK);
1269         checkGLcall("glRenderMode(GL_FEEDBACK)");
1270         glEvalMesh2(GL_FILL, 0, ceilf(patch->numSegs[0]), 0, ceilf(patch->numSegs[1]));
1271         checkGLcall("glEvalMesh2\n");
1272         i = glRenderMode(GL_RENDER);
1273         checkGLcall("glRenderMode(GL_RENDER)");
1274
1275         i = 0;
1276         for(j = 0; j < buffer_size; j += (3 /* num verts */ * out_vertex_size + 2 /* tri marker */)) {
1277             if(feedbuffer[j] != GL_POLYGON_TOKEN) {
1278                 ERR("Unexpected token: %f\n", feedbuffer[j]);
1279                 continue;
1280             }
1281             if(feedbuffer[j + 1] != 3) {
1282                 ERR("Unexpected polygon: %f corners\n", feedbuffer[j + 1]);
1283                 continue;
1284             }
1285             if(patch->mem[i + 3] == 0.0)
1286                 patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 2 + 5];
1287             if(patch->mem[i + 4] == 0.0)
1288                 patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 2 + 6];
1289             if(patch->mem[i + 5] == 0.0)
1290                 patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 2 + 7];
1291             normalize_normal(patch->mem + i + 3);
1292             i += d3d_out_vertex_size;
1293
1294             if(patch->mem[i + 3] == 0.0)
1295                 patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 1 + 5];
1296             if(patch->mem[i + 4] == 0.0)
1297                 patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 1 + 6];
1298             if(patch->mem[i + 5] == 0.0)
1299                 patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 1 + 7];
1300             normalize_normal(patch->mem + i + 3);
1301             i += d3d_out_vertex_size;
1302
1303             if(patch->mem[i + 3] == 0.0)
1304                 patch->mem[i + 3] = -feedbuffer[j + out_vertex_size * 0 + 5];
1305             if(patch->mem[i + 4] == 0.0)
1306                 patch->mem[i + 4] = -feedbuffer[j + out_vertex_size * 0 + 6];
1307             if(patch->mem[i + 5] == 0.0)
1308                 patch->mem[i + 5] = -feedbuffer[j + out_vertex_size * 0 + 7];
1309             normalize_normal(patch->mem + i + 3);
1310             i += d3d_out_vertex_size;
1311         }
1312     }
1313
1314     glDisable(GL_MAP2_VERTEX_3);
1315     glDisable(GL_AUTO_NORMAL);
1316     glDisable(GL_MAP2_NORMAL);
1317     glDisable(GL_MAP2_TEXTURE_COORD_4);
1318     checkGLcall("glDisable vertex attrib generation");
1319     LEAVE_GL();
1320
1321     HeapFree(GetProcessHeap(), 0, feedbuffer);
1322
1323     vtxStride = 3 * sizeof(float);
1324     if(patch->has_normals) {
1325         vtxStride += 3 * sizeof(float);
1326     }
1327     if(patch->has_texcoords) {
1328         vtxStride += 4 * sizeof(float);
1329     }
1330     memset(&patch->strided, 0, sizeof(&patch->strided));
1331     patch->strided.u.s.position.lpData = (BYTE *) patch->mem;
1332     patch->strided.u.s.position.dwStride = vtxStride;
1333     patch->strided.u.s.position.dwType = WINED3DDECLTYPE_FLOAT3;
1334     patch->strided.u.s.position.streamNo = 255;
1335
1336     if(patch->has_normals) {
1337         patch->strided.u.s.normal.lpData = (BYTE *) patch->mem + 3 * sizeof(float) /* pos */;
1338         patch->strided.u.s.normal.dwStride = vtxStride;
1339         patch->strided.u.s.normal.dwType = WINED3DDECLTYPE_FLOAT3;
1340         patch->strided.u.s.normal.streamNo = 255;
1341     }
1342     if(patch->has_texcoords) {
1343         patch->strided.u.s.texCoords[0].lpData = (BYTE *) patch->mem + 3 * sizeof(float) /* pos */;
1344         if(patch->has_normals) {
1345             patch->strided.u.s.texCoords[0].lpData += 3 * sizeof(float);
1346         }
1347         patch->strided.u.s.texCoords[0].dwStride = vtxStride;
1348         patch->strided.u.s.texCoords[0].dwType = WINED3DDECLTYPE_FLOAT4;
1349         /* MAX_STREAMS index points to an unused element in stateblock->streamOffsets which
1350          * always remains set to 0. Windows uses stream 255 here, but this is not visible to the
1351          * application.
1352          */
1353         patch->strided.u.s.texCoords[0].streamNo = MAX_STREAMS;
1354     }
1355
1356     return WINED3D_OK;
1357 }