dlls/ddraw/executebuffer.c

   1 /* Direct3D ExecuteBuffer
   2  * Copyright (c) 1998-2004 Lionel ULMER
   3  * Copyright (c) 2002-2004 Christian Costa
   4  * Copyright (c) 2006      Stefan Dösinger
   5  *
   6  * This file contains the implementation of IDirect3DExecuteBuffer.
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include "config.h"
  24 #include "wine/port.h"
  25
  26 #include "ddraw_private.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
  29
  30 /*****************************************************************************
  31  * _dump_executedata
  32  * _dump_D3DEXECUTEBUFFERDESC
  33  *
  34  * Debug functions which write the executebuffer data to the console
  35  *
  36  *****************************************************************************/
  37
  38 static void _dump_executedata(const D3DEXECUTEDATA *lpData) {
  39     TRACE("dwSize : %d\n", lpData->dwSize);
  40     TRACE("Vertex      Offset : %d  Count  : %d\n", lpData->dwVertexOffset, lpData->dwVertexCount);
  41     TRACE("Instruction Offset : %d  Length : %d\n", lpData->dwInstructionOffset, lpData->dwInstructionLength);
  42     TRACE("HVertex     Offset : %d\n", lpData->dwHVertexOffset);
  43 }
  44
  45 static void _dump_D3DEXECUTEBUFFERDESC(const D3DEXECUTEBUFFERDESC *lpDesc) {
  46     TRACE("dwSize       : %d\n", lpDesc->dwSize);
  47     TRACE("dwFlags      : %x\n", lpDesc->dwFlags);
  48     TRACE("dwCaps       : %x\n", lpDesc->dwCaps);
  49     TRACE("dwBufferSize : %d\n", lpDesc->dwBufferSize);
  50     TRACE("lpData       : %p\n", lpDesc->lpData);
  51 }
  52
  53 HRESULT d3d_execute_buffer_execute(struct d3d_execute_buffer *buffer,
  54         struct d3d_device *device, struct d3d_viewport *viewport)
  55 {
  56     DWORD vs = buffer->data.dwVertexOffset;
  57     DWORD is = buffer->data.dwInstructionOffset;
  58     char *instr = (char *)buffer->desc.lpData + is;
  59
  60     if (viewport->active_device != device)
  61     {
  62         WARN("Viewport %p active device is %p.\n",
  63                 viewport, viewport->active_device);
  64         return DDERR_INVALIDPARAMS;
  65     }
  66
  67     /* Activate the viewport */
  68     viewport_activate(viewport, FALSE);
  69
  70     TRACE("ExecuteData :\n");
  71     if (TRACE_ON(ddraw))
  72         _dump_executedata(&(buffer->data));
  73
  74     for (;;)
  75     {
  76         D3DINSTRUCTION *current = (D3DINSTRUCTION *)instr;
  77         BYTE size;
  78         WORD count;
  79
  80         count = current->wCount;
  81         size = current->bSize;
  82         instr += sizeof(D3DINSTRUCTION);
  83
  84         switch (current->bOpcode) {
  85             case D3DOP_POINT: {
  86                 WARN("POINT-s          (%d)\n", count);
  87                 instr += count * size;
  88             } break;
  89
  90             case D3DOP_LINE: {
  91                 WARN("LINE-s           (%d)\n", count);
  92                 instr += count * size;
  93             } break;
  94
  95             case D3DOP_TRIANGLE: {
  96                 DWORD i;
  97                 D3DTLVERTEX *tl_vx = buffer->vertex_data;
  98                 TRACE("TRIANGLE         (%d)\n", count);
  99
 100                 if (buffer->nb_indices < count * 3)
 101                 {
 102                     buffer->nb_indices = count * 3;
 103                     HeapFree(GetProcessHeap(), 0, buffer->indices);
 104                     buffer->indices = HeapAlloc(GetProcessHeap(), 0, sizeof(*buffer->indices) * buffer->nb_indices);
 105                 }
 106
 107                 for (i = 0; i < count; ++i)
 108                 {
 109                     D3DTRIANGLE *ci = (D3DTRIANGLE *)instr;
 110                     TRACE("  v1: %d  v2: %d  v3: %d\n",ci->u1.v1, ci->u2.v2, ci->u3.v3);
 111                     TRACE("  Flags : ");
 112                     if (TRACE_ON(ddraw))
 113                     {
 114                         /* Wireframe */
 115                         if (ci->wFlags & D3DTRIFLAG_EDGEENABLE1)
 116                             TRACE("EDGEENABLE1 ");
 117                         if (ci->wFlags & D3DTRIFLAG_EDGEENABLE2)
 118                             TRACE("EDGEENABLE2 ");
 119                         if (ci->wFlags & D3DTRIFLAG_EDGEENABLE1)
 120                             TRACE("EDGEENABLE3 ");
 121                         /* Strips / Fans */
 122                         if (ci->wFlags == D3DTRIFLAG_EVEN)
 123                             TRACE("EVEN ");
 124                         if (ci->wFlags == D3DTRIFLAG_ODD)
 125                             TRACE("ODD ");
 126                         if (ci->wFlags == D3DTRIFLAG_START)
 127                             TRACE("START ");
 128                         if ((ci->wFlags > 0) && (ci->wFlags < 30))
 129                             TRACE("STARTFLAT(%u) ", ci->wFlags);
 130                         TRACE("\n");
 131                     }
 132                     buffer->indices[(i * 3)    ] = ci->u1.v1;
 133                     buffer->indices[(i * 3) + 1] = ci->u2.v2;
 134                     buffer->indices[(i * 3) + 2] = ci->u3.v3;
 135                     instr += size;
 136                 }
 137                 IDirect3DDevice7_DrawIndexedPrimitive(&device->IDirect3DDevice7_iface,
 138                         D3DPT_TRIANGLELIST, D3DFVF_TLVERTEX, tl_vx, buffer->nb_vertices,
 139                         buffer->indices, count * 3, 0);
 140             } break;
 141
 142             case D3DOP_MATRIXLOAD:
 143                 WARN("MATRIXLOAD-s     (%d)\n", count);
 144                 instr += count * size;
 145                 break;
 146
 147             case D3DOP_MATRIXMULTIPLY: {
 148                 DWORD  i;
 149                 TRACE("MATRIXMULTIPLY   (%d)\n", count);
 150
 151                 for (i = 0; i < count; ++i)
 152                 {
 153                     D3DMATRIXMULTIPLY *ci = (D3DMATRIXMULTIPLY *)instr;
 154                     D3DMATRIX *a, *b, *c;
 155
 156                     a = ddraw_get_object(&device->handle_table, ci->hDestMatrix - 1, DDRAW_HANDLE_MATRIX);
 157                     b = ddraw_get_object(&device->handle_table, ci->hSrcMatrix1 - 1, DDRAW_HANDLE_MATRIX);
 158                     c = ddraw_get_object(&device->handle_table, ci->hSrcMatrix2 - 1, DDRAW_HANDLE_MATRIX);
 159
 160                     if (!a || !b || !c)
 161                     {
 162                         ERR("Invalid matrix handle (a %#x -> %p, b %#x -> %p, c %#x -> %p).\n",
 163                                 ci->hDestMatrix, a, ci->hSrcMatrix1, b, ci->hSrcMatrix2, c);
 164                     }
 165                     else
 166                     {
 167                         TRACE("dst %p, src1 %p, src2 %p.\n", a, b, c);
 168                         multiply_matrix(a, c, b);
 169                     }
 170
 171                     instr += size;
 172                 }
 173             } break;
 174
 175             case D3DOP_STATETRANSFORM: {
 176                 DWORD i;
 177                 TRACE("STATETRANSFORM   (%d)\n", count);
 178
 179                 for (i = 0; i < count; ++i)
 180                 {
 181                     D3DSTATE *ci = (D3DSTATE *)instr;
 182                     D3DMATRIX *m;
 183
 184                     m = ddraw_get_object(&device->handle_table, ci->u2.dwArg[0] - 1, DDRAW_HANDLE_MATRIX);
 185                     if (!m)
 186                     {
 187                         ERR("Invalid matrix handle %#x.\n", ci->u2.dwArg[0]);
 188                     }
 189                     else
 190                     {
 191                         if (ci->u1.dtstTransformStateType == D3DTRANSFORMSTATE_WORLD)
 192                             device->world = ci->u2.dwArg[0];
 193                         if (ci->u1.dtstTransformStateType == D3DTRANSFORMSTATE_VIEW)
 194                             device->view = ci->u2.dwArg[0];
 195                         if (ci->u1.dtstTransformStateType == D3DTRANSFORMSTATE_PROJECTION)
 196                             device->proj = ci->u2.dwArg[0];
 197                         IDirect3DDevice7_SetTransform(&device->IDirect3DDevice7_iface,
 198                                 ci->u1.dtstTransformStateType, m);
 199                     }
 200
 201                     instr += size;
 202                 }
 203             } break;
 204
 205             case D3DOP_STATELIGHT: {
 206                 DWORD i;
 207                 TRACE("STATELIGHT       (%d)\n", count);
 208
 209                 for (i = 0; i < count; ++i)
 210                 {
 211                     D3DSTATE *ci = (D3DSTATE *)instr;
 212
 213                     TRACE("(%08x,%08x)\n", ci->u1.dlstLightStateType, ci->u2.dwArg[0]);
 214
 215                     if (!ci->u1.dlstLightStateType || (ci->u1.dlstLightStateType > D3DLIGHTSTATE_COLORVERTEX))
 216                         ERR("Unexpected Light State Type %d\n", ci->u1.dlstLightStateType);
 217                     else if (ci->u1.dlstLightStateType == D3DLIGHTSTATE_MATERIAL /* 1 */)
 218                     {
 219                         struct d3d_material *m;
 220
 221                         m = ddraw_get_object(&device->handle_table, ci->u2.dwArg[0] - 1, DDRAW_HANDLE_MATERIAL);
 222                         if (!m)
 223                             ERR("Invalid material handle %#x.\n", ci->u2.dwArg[0]);
 224                         else
 225                             material_activate(m);
 226                     }
 227                     else if (ci->u1.dlstLightStateType == D3DLIGHTSTATE_COLORMODEL /* 3 */)
 228                     {
 229                         switch (ci->u2.dwArg[0]) {
 230                             case D3DCOLOR_MONO:
 231                                 ERR("DDCOLOR_MONO should not happen!\n");
 232                                 break;
 233                             case D3DCOLOR_RGB:
 234                                 /* We are already in this mode */
 235                                 break;
 236                             default:
 237                                 ERR("Unknown color model!\n");
 238                         }
 239                     } else {
 240                         D3DRENDERSTATETYPE rs = 0;
 241                         switch (ci->u1.dlstLightStateType) {
 242
 243                             case D3DLIGHTSTATE_AMBIENT:       /* 2 */
 244                                 rs = D3DRENDERSTATE_AMBIENT;
 245                                 break;
 246                             case D3DLIGHTSTATE_FOGMODE:       /* 4 */
 247                                 rs = D3DRENDERSTATE_FOGVERTEXMODE;
 248                                 break;
 249                             case D3DLIGHTSTATE_FOGSTART:      /* 5 */
 250                                 rs = D3DRENDERSTATE_FOGSTART;
 251                                 break;
 252                             case D3DLIGHTSTATE_FOGEND:        /* 6 */
 253                                 rs = D3DRENDERSTATE_FOGEND;
 254                                 break;
 255                             case D3DLIGHTSTATE_FOGDENSITY:    /* 7 */
 256                                 rs = D3DRENDERSTATE_FOGDENSITY;
 257                                 break;
 258                             case D3DLIGHTSTATE_COLORVERTEX:   /* 8 */
 259                                 rs = D3DRENDERSTATE_COLORVERTEX;
 260                                 break;
 261                             default:
 262                                 break;
 263                         }
 264
 265                         IDirect3DDevice7_SetRenderState(&device->IDirect3DDevice7_iface, rs, ci->u2.dwArg[0]);
 266                     }
 267
 268                     instr += size;
 269                 }
 270             } break;
 271
 272             case D3DOP_STATERENDER: {
 273                 DWORD i;
 274                 IDirect3DDevice2 *d3d_device2 = &device->IDirect3DDevice2_iface;
 275                 TRACE("STATERENDER      (%d)\n", count);
 276
 277                 for (i = 0; i < count; ++i)
 278                 {
 279                     D3DSTATE *ci = (D3DSTATE *)instr;
 280
 281                     IDirect3DDevice2_SetRenderState(d3d_device2, ci->u1.drstRenderStateType, ci->u2.dwArg[0]);
 282
 283                     instr += size;
 284                 }
 285             } break;
 286
 287             case D3DOP_PROCESSVERTICES:
 288             {
 289                 /* TODO: Share code with IDirect3DVertexBuffer::ProcessVertices and / or
 290                  * IWineD3DDevice::ProcessVertices
 291                  */
 292                 DWORD i;
 293                 D3DMATRIX view_mat, world_mat, proj_mat;
 294                 TRACE("PROCESSVERTICES  (%d)\n", count);
 295
 296                 /* Get the transform and world matrix */
 297                 /* Note: D3DMATRIX is compatible with struct wined3d_matrix. */
 298                 wined3d_device_get_transform(device->wined3d_device,
 299                         D3DTRANSFORMSTATE_VIEW, (struct wined3d_matrix *)&view_mat);
 300                 wined3d_device_get_transform(device->wined3d_device,
 301                         D3DTRANSFORMSTATE_PROJECTION, (struct wined3d_matrix *)&proj_mat);
 302                 wined3d_device_get_transform(device->wined3d_device,
 303                         WINED3D_TS_WORLD_MATRIX(0), (struct wined3d_matrix *)&world_mat);
 304
 305                 for (i = 0; i < count; ++i)
 306                 {
 307                     D3DPROCESSVERTICES *ci = (D3DPROCESSVERTICES *)instr;
 308
 309                     TRACE("  Start : %d Dest : %d Count : %d\n",
 310                           ci->wStart, ci->wDest, ci->dwCount);
 311                     TRACE("  Flags : ");
 312                     if (TRACE_ON(ddraw))
 313                     {
 314                         if (ci->dwFlags & D3DPROCESSVERTICES_COPY)
 315                             TRACE("COPY ");
 316                         if (ci->dwFlags & D3DPROCESSVERTICES_NOCOLOR)
 317                             TRACE("NOCOLOR ");
 318                         if (ci->dwFlags == D3DPROCESSVERTICES_OPMASK)
 319                             TRACE("OPMASK ");
 320                         if (ci->dwFlags & D3DPROCESSVERTICES_TRANSFORM)
 321                             TRACE("TRANSFORM ");
 322                         if (ci->dwFlags == D3DPROCESSVERTICES_TRANSFORMLIGHT)
 323                             TRACE("TRANSFORMLIGHT ");
 324                         if (ci->dwFlags & D3DPROCESSVERTICES_UPDATEEXTENTS)
 325                             TRACE("UPDATEEXTENTS ");
 326                         TRACE("\n");
 327                     }
 328
 329                     /* This is where doing Direct3D on top on OpenGL is quite difficult.
 330                        This method transforms a set of vertices using the CURRENT state
 331                        (lighting, projection, ...) but does not rasterize them.
 332                        They will only be put on screen later (with the POINT / LINE and
 333                        TRIANGLE op-codes). The problem is that you can have a triangle
 334                        with each point having been transformed using another state...
 335
 336                        In this implementation, I will emulate only ONE thing : each
 337                        vertex can have its own "WORLD" transformation (this is used in the
 338                        TWIST.EXE demo of the 5.2 SDK). I suppose that all vertices of the
 339                        execute buffer use the same state.
 340
 341                        If I find applications that change other states, I will try to do a
 342                        more 'fine-tuned' state emulation (but I may become quite tricky if
 343                        it changes a light position in the middle of a triangle).
 344
 345                        In this case, a 'direct' approach (i.e. without using OpenGL, but
 346                        writing our own 3D rasterizer) would be easier. */
 347
 348                     /* The current method (with the hypothesis that only the WORLD matrix
 349                        will change between two points) is like this :
 350                        - I transform 'manually' all the vertices with the current WORLD
 351                          matrix and store them in the vertex buffer
 352                        - during the rasterization phase, the WORLD matrix will be set to
 353                          the Identity matrix */
 354
 355                     /* Enough for the moment */
 356                     if (ci->dwFlags == D3DPROCESSVERTICES_TRANSFORMLIGHT) {
 357                         unsigned int nb;
 358                         D3DVERTEX *src = ((D3DVERTEX *)((char *)buffer->desc.lpData + vs)) + ci->wStart;
 359                         D3DTLVERTEX *dst = ((D3DTLVERTEX *)buffer->vertex_data) + ci->wDest;
 360                         D3DVIEWPORT *Viewport = &viewport->viewports.vp1;
 361                         D3DMATRIX mat;
 362
 363                         if (TRACE_ON(ddraw))
 364                         {
 365                             TRACE("  Projection Matrix : (%p)\n", &proj_mat);
 366                             dump_D3DMATRIX(&proj_mat);
 367                             TRACE("  View       Matrix : (%p)\n", &view_mat);
 368                             dump_D3DMATRIX(&view_mat);
 369                             TRACE("  World Matrix : (%p)\n", &world_mat);
 370                             dump_D3DMATRIX(&world_mat);
 371                         }
 372
 373                         multiply_matrix(&mat,&view_mat,&world_mat);
 374                         multiply_matrix(&mat,&proj_mat,&mat);
 375
 376                         for (nb = 0; nb < ci->dwCount; nb++) {
 377                             /* No lighting yet */
 378                             dst->u5.color = 0xFFFFFFFF; /* Opaque white */
 379                             dst->u6.specular = 0xFF000000; /* No specular and no fog factor */
 380
 381                             dst->u7.tu  = src->u7.tu;
 382                             dst->u8.tv  = src->u8.tv;
 383
 384                             dst->u1.sx = (src->u1.x * mat._11) + (src->u2.y * mat._21) + (src->u3.z * mat._31) + mat._41;
 385                             dst->u2.sy = (src->u1.x * mat._12) + (src->u2.y * mat._22) + (src->u3.z * mat._32) + mat._42;
 386                             dst->u3.sz = (src->u1.x * mat._13) + (src->u2.y * mat._23) + (src->u3.z * mat._33) + mat._43;
 387                             dst->u4.rhw = (src->u1.x * mat._14) + (src->u2.y * mat._24) + (src->u3.z * mat._34) + mat._44;
 388
 389                             dst->u1.sx = dst->u1.sx / dst->u4.rhw * Viewport->dvScaleX
 390                                        + Viewport->dwX + Viewport->dwWidth / 2;
 391                             dst->u2.sy = (-dst->u2.sy) / dst->u4.rhw * Viewport->dvScaleY
 392                                        + Viewport->dwY + Viewport->dwHeight / 2;
 393                             dst->u3.sz /= dst->u4.rhw;
 394                             dst->u4.rhw = 1 / dst->u4.rhw;
 395
 396                             src++;
 397                             dst++;
 398
 399                         }
 400                     } else if (ci->dwFlags == D3DPROCESSVERTICES_TRANSFORM) {
 401                         unsigned int nb;
 402                         D3DLVERTEX *src = ((D3DLVERTEX *)((char *)buffer->desc.lpData + vs)) + ci->wStart;
 403                         D3DTLVERTEX *dst = ((D3DTLVERTEX *)buffer->vertex_data) + ci->wDest;
 404                         D3DVIEWPORT *Viewport = &viewport->viewports.vp1;
 405                         D3DMATRIX mat;
 406
 407                         if (TRACE_ON(ddraw))
 408                         {
 409                             TRACE("  Projection Matrix : (%p)\n", &proj_mat);
 410                             dump_D3DMATRIX(&proj_mat);
 411                             TRACE("  View       Matrix : (%p)\n",&view_mat);
 412                             dump_D3DMATRIX(&view_mat);
 413                             TRACE("  World Matrix : (%p)\n", &world_mat);
 414                             dump_D3DMATRIX(&world_mat);
 415                         }
 416
 417                         multiply_matrix(&mat,&view_mat,&world_mat);
 418                         multiply_matrix(&mat,&proj_mat,&mat);
 419
 420                         for (nb = 0; nb < ci->dwCount; nb++) {
 421                             dst->u5.color = src->u4.color;
 422                             dst->u6.specular = src->u5.specular;
 423                             dst->u7.tu = src->u6.tu;
 424                             dst->u8.tv = src->u7.tv;
 425
 426                             dst->u1.sx = (src->u1.x * mat._11) + (src->u2.y * mat._21) + (src->u3.z * mat._31) + mat._41;
 427                             dst->u2.sy = (src->u1.x * mat._12) + (src->u2.y * mat._22) + (src->u3.z * mat._32) + mat._42;
 428                             dst->u3.sz = (src->u1.x * mat._13) + (src->u2.y * mat._23) + (src->u3.z * mat._33) + mat._43;
 429                             dst->u4.rhw = (src->u1.x * mat._14) + (src->u2.y * mat._24) + (src->u3.z * mat._34) + mat._44;
 430
 431                             dst->u1.sx = dst->u1.sx / dst->u4.rhw * Viewport->dvScaleX
 432                                        + Viewport->dwX + Viewport->dwWidth / 2;
 433                             dst->u2.sy = (-dst->u2.sy) / dst->u4.rhw * Viewport->dvScaleY
 434                                        + Viewport->dwY + Viewport->dwHeight / 2;
 435
 436                             dst->u3.sz /= dst->u4.rhw;
 437                             dst->u4.rhw = 1 / dst->u4.rhw;
 438
 439                             src++;
 440                             dst++;
 441                         }
 442                     }
 443                     else if (ci->dwFlags == D3DPROCESSVERTICES_COPY)
 444                     {
 445                         D3DTLVERTEX *src = ((D3DTLVERTEX *)((char *)buffer->desc.lpData + vs)) + ci->wStart;
 446                         D3DTLVERTEX *dst = ((D3DTLVERTEX *)buffer->vertex_data) + ci->wDest;
 447
 448                         memcpy(dst, src, ci->dwCount * sizeof(D3DTLVERTEX));
 449                     } else {
 450                         ERR("Unhandled vertex processing flag %#x.\n", ci->dwFlags);
 451                     }
 452
 453                     instr += size;
 454                 }
 455             } break;
 456
 457             case D3DOP_TEXTURELOAD: {
 458                 WARN("TEXTURELOAD-s    (%d)\n", count);
 459
 460                 instr += count * size;
 461             } break;
 462
 463             case D3DOP_EXIT: {
 464                 TRACE("EXIT             (%d)\n", count);
 465                 /* We did this instruction */
 466                 instr += size;
 467                 /* Exit this loop */
 468                 goto end_of_buffer;
 469             } break;
 470
 471             case D3DOP_BRANCHFORWARD: {
 472                 DWORD i;
 473                 TRACE("BRANCHFORWARD    (%d)\n", count);
 474
 475                 for (i = 0; i < count; ++i)
 476                 {
 477                     D3DBRANCH *ci = (D3DBRANCH *)instr;
 478
 479                     if ((buffer->data.dsStatus.dwStatus & ci->dwMask) == ci->dwValue)
 480                     {
 481                         if (!ci->bNegate)
 482                         {
 483                             TRACE(" Branch to %d\n", ci->dwOffset);
 484                             if (ci->dwOffset) {
 485                                 instr = (char*)current + ci->dwOffset;
 486                                 break;
 487                             }
 488                         }
 489                     } else {
 490                         if (ci->bNegate) {
 491                             TRACE(" Branch to %d\n", ci->dwOffset);
 492                             if (ci->dwOffset) {
 493                                 instr = (char*)current + ci->dwOffset;
 494                                 break;
 495                             }
 496                         }
 497                     }
 498
 499                     instr += size;
 500                 }
 501             } break;
 502
 503             case D3DOP_SPAN: {
 504                 WARN("SPAN-s           (%d)\n", count);
 505
 506                 instr += count * size;
 507             } break;
 508
 509             case D3DOP_SETSTATUS: {
 510                 DWORD i;
 511                 TRACE("SETSTATUS        (%d)\n", count);
 512
 513                 for (i = 0; i < count; ++i)
 514                 {
 515                     buffer->data.dsStatus = *(D3DSTATUS *)instr;
 516                     instr += size;
 517                 }
 518             } break;
 519
 520             default:
 521                 ERR("Unhandled OpCode %d !!!\n",current->bOpcode);
 522                 /* Try to save ... */
 523                 instr += count * size;
 524                 break;
 525         }
 526     }
 527
 528 end_of_buffer:
 529     return D3D_OK;
 530 }
 531
 532 static inline struct d3d_execute_buffer *impl_from_IDirect3DExecuteBuffer(IDirect3DExecuteBuffer *iface)
 533 {
 534     return CONTAINING_RECORD(iface, struct d3d_execute_buffer, IDirect3DExecuteBuffer_iface);
 535 }
 536
 537 /*****************************************************************************
 538  * IDirect3DExecuteBuffer::QueryInterface
 539  *
 540  * Well, a usual QueryInterface function. Don't know fur sure which
 541  * interfaces it can Query.
 542  *
 543  * Params:
 544  *  riid: The interface ID queried for
 545  *  obj: Address to return the interface pointer at
 546  *
 547  * Returns:
 548  *  D3D_OK in case of a success (S_OK? Think it's the same)
 549  *  OLE_E_ENUM_NOMORE if the interface wasn't found.
 550  *   (E_NOINTERFACE?? Don't know what I really need)
 551  *
 552  *****************************************************************************/
 553 static HRESULT WINAPI d3d_execute_buffer_QueryInterface(IDirect3DExecuteBuffer *iface, REFIID riid, void **obj)
 554 {
 555     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), obj);
 556
 557     *obj = NULL;
 558
 559     if ( IsEqualGUID( &IID_IUnknown,  riid ) ) {
 560         IDirect3DExecuteBuffer_AddRef(iface);
 561         *obj = iface;
 562         TRACE("  Creating IUnknown interface at %p.\n", *obj);
 563         return S_OK;
 564     }
 565     if ( IsEqualGUID( &IID_IDirect3DExecuteBuffer, riid ) ) {
 566         IDirect3DExecuteBuffer_AddRef(iface);
 567         *obj = iface;
 568         TRACE("  Creating IDirect3DExecuteBuffer interface %p\n", *obj);
 569         return S_OK;
 570     }
 571     FIXME("(%p): interface for IID %s NOT found!\n", iface, debugstr_guid(riid));
 572     return E_NOINTERFACE;
 573 }
 574
 575
 576 /*****************************************************************************
 577  * IDirect3DExecuteBuffer::AddRef
 578  *
 579  * A normal AddRef method, nothing special
 580  *
 581  * Returns:
 582  *  The new refcount
 583  *
 584  *****************************************************************************/
 585 static ULONG WINAPI d3d_execute_buffer_AddRef(IDirect3DExecuteBuffer *iface)
 586 {
 587     struct d3d_execute_buffer *buffer = impl_from_IDirect3DExecuteBuffer(iface);
 588     ULONG ref = InterlockedIncrement(&buffer->ref);
 589
 590     TRACE("%p increasing refcount to %u.\n", buffer, ref);
 591
 592     return ref;
 593 }
 594
 595 /*****************************************************************************
 596  * IDirect3DExecuteBuffer::Release
 597  *
 598  * A normal Release method, nothing special
 599  *
 600  * Returns:
 601  *  The new refcount
 602  *
 603  *****************************************************************************/
 604 static ULONG WINAPI d3d_execute_buffer_Release(IDirect3DExecuteBuffer *iface)
 605 {
 606     struct d3d_execute_buffer *buffer = impl_from_IDirect3DExecuteBuffer(iface);
 607     ULONG ref = InterlockedDecrement(&buffer->ref);
 608
 609     TRACE("%p decreasing refcount to %u.\n", buffer, ref);
 610
 611     if (!ref)
 612     {
 613         if (buffer->need_free)
 614             HeapFree(GetProcessHeap(), 0, buffer->desc.lpData);
 615         HeapFree(GetProcessHeap(), 0, buffer->vertex_data);
 616         HeapFree(GetProcessHeap(), 0, buffer->indices);
 617         HeapFree(GetProcessHeap(), 0, buffer);
 618     }
 619
 620     return ref;
 621 }
 622
 623 /*****************************************************************************
 624  * IDirect3DExecuteBuffer::Initialize
 625  *
 626  * Initializes the Execute Buffer. This method exists for COM compliance
 627  * Nothing to do here.
 628  *
 629  * Returns:
 630  *  D3D_OK
 631  *
 632  *****************************************************************************/
 633 static HRESULT WINAPI d3d_execute_buffer_Initialize(IDirect3DExecuteBuffer *iface,
 634         IDirect3DDevice *device, D3DEXECUTEBUFFERDESC *desc)
 635 {
 636     TRACE("iface %p, device %p, desc %p.\n", iface, device, desc);
 637
 638     return D3D_OK;
 639 }
 640
 641 /*****************************************************************************
 642  * IDirect3DExecuteBuffer::Lock
 643  *
 644  * Locks the buffer, so the app can write into it.
 645  *
 646  * Params:
 647  *  Desc: Pointer to return the buffer description. This Description contains
 648  *        a pointer to the buffer data.
 649  *
 650  * Returns:
 651  *  This implementation always returns D3D_OK
 652  *
 653  *****************************************************************************/
 654 static HRESULT WINAPI d3d_execute_buffer_Lock(IDirect3DExecuteBuffer *iface, D3DEXECUTEBUFFERDESC *desc)
 655 {
 656     struct d3d_execute_buffer *buffer = impl_from_IDirect3DExecuteBuffer(iface);
 657     DWORD dwSize;
 658
 659     TRACE("iface %p, desc %p.\n", iface, desc);
 660
 661     dwSize = desc->dwSize;
 662     memcpy(desc, &buffer->desc, dwSize);
 663
 664     if (TRACE_ON(ddraw))
 665     {
 666         TRACE("  Returning description :\n");
 667         _dump_D3DEXECUTEBUFFERDESC(desc);
 668     }
 669     return D3D_OK;
 670 }
 671
 672 /*****************************************************************************
 673  * IDirect3DExecuteBuffer::Unlock
 674  *
 675  * Unlocks the buffer. We don't have anything to do here
 676  *
 677  * Returns:
 678  *  This implementation always returns D3D_OK
 679  *
 680  *****************************************************************************/
 681 static HRESULT WINAPI d3d_execute_buffer_Unlock(IDirect3DExecuteBuffer *iface)
 682 {
 683     TRACE("iface %p.\n", iface);
 684
 685     return D3D_OK;
 686 }
 687
 688 /*****************************************************************************
 689  * IDirect3DExecuteBuffer::SetExecuteData
 690  *
 691  * Sets the execute data. This data is used to describe the buffer's content
 692  *
 693  * Params:
 694  *  Data: Pointer to a D3DEXECUTEDATA structure containing the data to
 695  *  assign
 696  *
 697  * Returns:
 698  *  D3D_OK on success
 699  *  DDERR_OUTOFMEMORY if the vertex buffer allocation failed
 700  *
 701  *****************************************************************************/
 702 static HRESULT WINAPI d3d_execute_buffer_SetExecuteData(IDirect3DExecuteBuffer *iface, D3DEXECUTEDATA *data)
 703 {
 704     struct d3d_execute_buffer *buffer = impl_from_IDirect3DExecuteBuffer(iface);
 705     DWORD nbvert;
 706
 707     TRACE("iface %p, data %p.\n", iface, data);
 708
 709     memcpy(&buffer->data, data, data->dwSize);
 710
 711     /* Get the number of vertices in the execute buffer */
 712     nbvert = buffer->data.dwVertexCount;
 713
 714     /* Prepares the transformed vertex buffer */
 715     HeapFree(GetProcessHeap(), 0, buffer->vertex_data);
 716     buffer->vertex_data = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, nbvert * sizeof(D3DTLVERTEX));
 717     buffer->nb_vertices = nbvert;
 718
 719     if (TRACE_ON(ddraw))
 720         _dump_executedata(data);
 721
 722     return D3D_OK;
 723 }
 724
 725 /*****************************************************************************
 726  * IDirect3DExecuteBuffer::GetExecuteData
 727  *
 728  * Returns the data in the execute buffer
 729  *
 730  * Params:
 731  *  Data: Pointer to a D3DEXECUTEDATA structure used to return data
 732  *
 733  * Returns:
 734  *  D3D_OK on success
 735  *
 736  *****************************************************************************/
 737 static HRESULT WINAPI d3d_execute_buffer_GetExecuteData(IDirect3DExecuteBuffer *iface, D3DEXECUTEDATA *data)
 738 {
 739     struct d3d_execute_buffer *buffer = impl_from_IDirect3DExecuteBuffer(iface);
 740     DWORD dwSize;
 741
 742     TRACE("iface %p, data %p.\n", iface, data);
 743
 744     dwSize = data->dwSize;
 745     memcpy(data, &buffer->data, dwSize);
 746
 747     if (TRACE_ON(ddraw))
 748     {
 749         TRACE("Returning data :\n");
 750         _dump_executedata(data);
 751     }
 752
 753     return DD_OK;
 754 }
 755
 756 /*****************************************************************************
 757  * IDirect3DExecuteBuffer::Validate
 758  *
 759  * DirectX 5 SDK: "The IDirect3DExecuteBuffer::Validate method is not
 760  * currently implemented"
 761  *
 762  * Params:
 763  *  ?
 764  *
 765  * Returns:
 766  *  DDERR_UNSUPPORTED, because it's not implemented in Windows.
 767  *
 768  *****************************************************************************/
 769 static HRESULT WINAPI d3d_execute_buffer_Validate(IDirect3DExecuteBuffer *iface,
 770         DWORD *offset, LPD3DVALIDATECALLBACK callback, void *context, DWORD reserved)
 771 {
 772     TRACE("iface %p, offset %p, callback %p, context %p, reserved %#x.\n",
 773             iface, offset, callback, context, reserved);
 774
 775     WARN("Not implemented.\n");
 776
 777     return DDERR_UNSUPPORTED; /* Unchecked */
 778 }
 779
 780 /*****************************************************************************
 781  * IDirect3DExecuteBuffer::Optimize
 782  *
 783  * DirectX5 SDK: "The IDirect3DExecuteBuffer::Optimize method is not
 784  * currently supported"
 785  *
 786  * Params:
 787  *  Dummy: Seems to be an unused dummy ;)
 788  *
 789  * Returns:
 790  *  DDERR_UNSUPPORTED, because it's not implemented in Windows.
 791  *
 792  *****************************************************************************/
 793 static HRESULT WINAPI d3d_execute_buffer_Optimize(IDirect3DExecuteBuffer *iface, DWORD reserved)
 794 {
 795     TRACE("iface %p, reserved %#x.\n", iface, reserved);
 796
 797     WARN("Not implemented.\n");
 798
 799     return DDERR_UNSUPPORTED; /* Unchecked */
 800 }
 801
 802 static const struct IDirect3DExecuteBufferVtbl d3d_execute_buffer_vtbl =
 803 {
 804     d3d_execute_buffer_QueryInterface,
 805     d3d_execute_buffer_AddRef,
 806     d3d_execute_buffer_Release,
 807     d3d_execute_buffer_Initialize,
 808     d3d_execute_buffer_Lock,
 809     d3d_execute_buffer_Unlock,
 810     d3d_execute_buffer_SetExecuteData,
 811     d3d_execute_buffer_GetExecuteData,
 812     d3d_execute_buffer_Validate,
 813     d3d_execute_buffer_Optimize,
 814 };
 815
 816 HRESULT d3d_execute_buffer_init(struct d3d_execute_buffer *execute_buffer,
 817         struct d3d_device *device, D3DEXECUTEBUFFERDESC *desc)
 818 {
 819     execute_buffer->IDirect3DExecuteBuffer_iface.lpVtbl = &d3d_execute_buffer_vtbl;
 820     execute_buffer->ref = 1;
 821     execute_buffer->d3ddev = device;
 822
 823     /* Initializes memory */
 824     memcpy(&execute_buffer->desc, desc, desc->dwSize);
 825
 826     /* No buffer given */
 827     if (!(execute_buffer->desc.dwFlags & D3DDEB_LPDATA))
 828         execute_buffer->desc.lpData = NULL;
 829
 830     /* No buffer size given */
 831     if (!(execute_buffer->desc.dwFlags & D3DDEB_BUFSIZE))
 832         execute_buffer->desc.dwBufferSize = 0;
 833
 834     /* Create buffer if asked */
 835     if (!execute_buffer->desc.lpData && execute_buffer->desc.dwBufferSize)
 836     {
 837         execute_buffer->need_free = TRUE;
 838         execute_buffer->desc.lpData = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, execute_buffer->desc.dwBufferSize);
 839         if (!execute_buffer->desc.lpData)
 840         {
 841             ERR("Failed to allocate execute buffer data.\n");
 842             return DDERR_OUTOFMEMORY;
 843         }
 844     }
 845
 846     execute_buffer->desc.dwFlags |= D3DDEB_LPDATA;
 847
 848     return D3D_OK;
 849 }
 850
 851 struct d3d_execute_buffer *unsafe_impl_from_IDirect3DExecuteBuffer(IDirect3DExecuteBuffer *iface)
 852 {
 853     if (!iface)
 854         return NULL;
 855     assert(iface->lpVtbl == &d3d_execute_buffer_vtbl);
 856
 857     return impl_from_IDirect3DExecuteBuffer(iface);
 858 }