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 /*****************************************************************************
  54  * IDirect3DExecuteBufferImpl_Execute
  55  *
  56  * The main functionality of the execute buffer
  57  * It transforms the vertices if necessary, and calls IDirect3DDevice7
  58  * for drawing the vertices. It is called from
  59  * IDirect3DDevice::Execute
  60  *
  61  * TODO: Perhaps some comments about the various opcodes wouldn't hurt
  62  *
  63  * Don't declare this static, as it's called from device.c,
  64  * IDirect3DDevice::Execute
  65  *
  66  * Params:
  67  *  Device: 3D Device associated to use for drawing
  68  *  Viewport: Viewport for this operation
  69  *
  70  *****************************************************************************/
  71 void
  72 IDirect3DExecuteBufferImpl_Execute(IDirect3DExecuteBufferImpl *This,
  73                                    IDirect3DDeviceImpl *lpDevice,
  74                                    IDirect3DViewportImpl *lpViewport)
  75 {
  76     /* DWORD bs = This->desc.dwBufferSize; */
  77     DWORD vs = This->data.dwVertexOffset;
  78     /* DWORD vc = This->data.dwVertexCount; */
  79     DWORD is = This->data.dwInstructionOffset;
  80     /* DWORD il = This->data.dwInstructionLength; */
  81
  82     char *instr = (char *)This->desc.lpData + is;
  83
  84     /* Should check if the viewport was added or not to the device */
  85
  86     /* Activate the viewport */
  87     lpViewport->active_device = lpDevice;
  88     viewport_activate(lpViewport, FALSE);
  89
  90     TRACE("ExecuteData :\n");
  91     if (TRACE_ON(ddraw))
  92       _dump_executedata(&(This->data));
  93
  94     while (1) {
  95         LPD3DINSTRUCTION current = (LPD3DINSTRUCTION) instr;
  96         BYTE size;
  97         WORD count;
  98
  99         count = current->wCount;
 100         size = current->bSize;
 101         instr += sizeof(D3DINSTRUCTION);
 102
 103         switch (current->bOpcode) {
 104             case D3DOP_POINT: {
 105                 WARN("POINT-s          (%d)\n", count);
 106                 instr += count * size;
 107             } break;
 108
 109             case D3DOP_LINE: {
 110                 WARN("LINE-s           (%d)\n", count);
 111                 instr += count * size;
 112             } break;
 113
 114             case D3DOP_TRIANGLE: {
 115                 int i;
 116                 D3DTLVERTEX *tl_vx = This->vertex_data;
 117                 TRACE("TRIANGLE         (%d)\n", count);
 118
 119                 if (count*3>This->nb_indices) {
 120                     This->nb_indices = count * 3;
 121                     HeapFree(GetProcessHeap(),0,This->indices);
 122                     This->indices = HeapAlloc(GetProcessHeap(),0,sizeof(WORD)*This->nb_indices);
 123                 }
 124
 125                 for (i = 0; i < count; i++) {
 126                     LPD3DTRIANGLE ci = (LPD3DTRIANGLE) instr;
 127                     TRACE("  v1: %d  v2: %d  v3: %d\n",ci->u1.v1, ci->u2.v2, ci->u3.v3);
 128                     TRACE("  Flags : ");
 129                     if (TRACE_ON(ddraw))
 130                     {
 131                         /* Wireframe */
 132                         if (ci->wFlags & D3DTRIFLAG_EDGEENABLE1)
 133                             TRACE("EDGEENABLE1 ");
 134                         if (ci->wFlags & D3DTRIFLAG_EDGEENABLE2)
 135                             TRACE("EDGEENABLE2 ");
 136                         if (ci->wFlags & D3DTRIFLAG_EDGEENABLE1)
 137                             TRACE("EDGEENABLE3 ");
 138                         /* Strips / Fans */
 139                         if (ci->wFlags == D3DTRIFLAG_EVEN)
 140                             TRACE("EVEN ");
 141                         if (ci->wFlags == D3DTRIFLAG_ODD)
 142                             TRACE("ODD ");
 143                         if (ci->wFlags == D3DTRIFLAG_START)
 144                             TRACE("START ");
 145                         if ((ci->wFlags > 0) && (ci->wFlags < 30))
 146                             TRACE("STARTFLAT(%u) ", ci->wFlags);
 147                         TRACE("\n");
 148                     }
 149                     This->indices[(i * 3)    ] = ci->u1.v1;
 150                     This->indices[(i * 3) + 1] = ci->u2.v2;
 151                     This->indices[(i * 3) + 2] = ci->u3.v3;
 152                     instr += size;
 153                 }
 154                 /* IDirect3DDevices have color keying always enabled -
 155                  * enable it before drawing. This overwrites any ALPHA*
 156                  * render state
 157                  */
 158                 IWineD3DDevice_SetRenderState(lpDevice->wineD3DDevice,
 159                                               WINED3DRS_COLORKEYENABLE,
 160                                               1);
 161                 IDirect3DDevice7_DrawIndexedPrimitive((IDirect3DDevice7 *)lpDevice,
 162                         D3DPT_TRIANGLELIST, D3DFVF_TLVERTEX, tl_vx, 0, This->indices, count * 3, 0);
 163             } break;
 164
 165             case D3DOP_MATRIXLOAD:
 166                 WARN("MATRIXLOAD-s     (%d)\n", count);
 167                 instr += count * size;
 168                 break;
 169
 170             case D3DOP_MATRIXMULTIPLY: {
 171                 int i;
 172                 TRACE("MATRIXMULTIPLY   (%d)\n", count);
 173
 174                 for (i = 0; i < count; ++i)
 175                 {
 176                     D3DMATRIXMULTIPLY *ci = (D3DMATRIXMULTIPLY *)instr;
 177                     D3DMATRIX *a, *b, *c;
 178
 179                     a = ddraw_get_object(&lpDevice->handle_table, ci->hDestMatrix - 1, DDRAW_HANDLE_MATRIX);
 180                     b = ddraw_get_object(&lpDevice->handle_table, ci->hSrcMatrix1 - 1, DDRAW_HANDLE_MATRIX);
 181                     c = ddraw_get_object(&lpDevice->handle_table, ci->hSrcMatrix2 - 1, DDRAW_HANDLE_MATRIX);
 182
 183                     if (!a || !b || !c)
 184                     {
 185                         ERR("Invalid matrix handle (a %#x -> %p, b %#x -> %p, c %#x -> %p).\n",
 186                                 ci->hDestMatrix, a, ci->hSrcMatrix1, b, ci->hSrcMatrix2, c);
 187                     }
 188                     else
 189                     {
 190                         TRACE("dst %p, src1 %p, src2 %p.\n", a, b, c);
 191                         multiply_matrix(a, c, b);
 192                     }
 193
 194                     instr += size;
 195                 }
 196             } break;
 197
 198             case D3DOP_STATETRANSFORM: {
 199                 int i;
 200                 TRACE("STATETRANSFORM   (%d)\n", count);
 201
 202                 for (i = 0; i < count; ++i)
 203                 {
 204                     D3DSTATE *ci = (D3DSTATE *)instr;
 205                     D3DMATRIX *m;
 206
 207                     m = ddraw_get_object(&lpDevice->handle_table, ci->u2.dwArg[0] - 1, DDRAW_HANDLE_MATRIX);
 208                     if (!m)
 209                     {
 210                         ERR("Invalid matrix handle %#x.\n", ci->u2.dwArg[0]);
 211                     }
 212                     else
 213                     {
 214                         if (ci->u1.dtstTransformStateType == D3DTRANSFORMSTATE_WORLD)
 215                             lpDevice->world = ci->u2.dwArg[0];
 216                         if (ci->u1.dtstTransformStateType == D3DTRANSFORMSTATE_VIEW)
 217                             lpDevice->view = ci->u2.dwArg[0];
 218                         if (ci->u1.dtstTransformStateType == D3DTRANSFORMSTATE_PROJECTION)
 219                             lpDevice->proj = ci->u2.dwArg[0];
 220                         IDirect3DDevice7_SetTransform((IDirect3DDevice7 *)lpDevice,
 221                                 ci->u1.dtstTransformStateType, m);
 222                     }
 223
 224                     instr += size;
 225                 }
 226             } break;
 227
 228             case D3DOP_STATELIGHT: {
 229                 int i;
 230                 TRACE("STATELIGHT       (%d)\n", count);
 231
 232                 for (i = 0; i < count; i++) {
 233                     LPD3DSTATE ci = (LPD3DSTATE) instr;
 234
 235                     TRACE("(%08x,%08x)\n", ci->u1.dlstLightStateType, ci->u2.dwArg[0]);
 236
 237                     if (!ci->u1.dlstLightStateType || (ci->u1.dlstLightStateType > D3DLIGHTSTATE_COLORVERTEX))
 238                         ERR("Unexpected Light State Type %d\n", ci->u1.dlstLightStateType);
 239                     else if (ci->u1.dlstLightStateType == D3DLIGHTSTATE_MATERIAL /* 1 */)
 240                     {
 241                         IDirect3DMaterialImpl *m;
 242
 243                         m = ddraw_get_object(&lpDevice->handle_table, ci->u2.dwArg[0] - 1, DDRAW_HANDLE_MATERIAL);
 244                         if (!m)
 245                             ERR("Invalid material handle %#x.\n", ci->u2.dwArg[0]);
 246                         else
 247                             material_activate(m);
 248                     }
 249                     else if (ci->u1.dlstLightStateType == D3DLIGHTSTATE_COLORMODEL /* 3 */)
 250                     {
 251                         switch (ci->u2.dwArg[0]) {
 252                             case D3DCOLOR_MONO:
 253                                 ERR("DDCOLOR_MONO should not happen!\n");
 254                                 break;
 255                             case D3DCOLOR_RGB:
 256                                 /* We are already in this mode */
 257                                 break;
 258                             default:
 259                                 ERR("Unknown color model!\n");
 260                         }
 261                     } else {
 262                         D3DRENDERSTATETYPE rs = 0;
 263                         switch (ci->u1.dlstLightStateType) {
 264
 265                             case D3DLIGHTSTATE_AMBIENT:       /* 2 */
 266                                 rs = D3DRENDERSTATE_AMBIENT;
 267                                 break;
 268                             case D3DLIGHTSTATE_FOGMODE:       /* 4 */
 269                                 rs = D3DRENDERSTATE_FOGVERTEXMODE;
 270                                 break;
 271                             case D3DLIGHTSTATE_FOGSTART:      /* 5 */
 272                                 rs = D3DRENDERSTATE_FOGSTART;
 273                                 break;
 274                             case D3DLIGHTSTATE_FOGEND:        /* 6 */
 275                                 rs = D3DRENDERSTATE_FOGEND;
 276                                 break;
 277                             case D3DLIGHTSTATE_FOGDENSITY:    /* 7 */
 278                                 rs = D3DRENDERSTATE_FOGDENSITY;
 279                                 break;
 280                             case D3DLIGHTSTATE_COLORVERTEX:   /* 8 */
 281                                 rs = D3DRENDERSTATE_COLORVERTEX;
 282                                 break;
 283                             default:
 284                                 break;
 285                         }
 286
 287                         IDirect3DDevice7_SetRenderState((IDirect3DDevice7 *)lpDevice, rs, ci->u2.dwArg[0]);
 288                     }
 289
 290                     instr += size;
 291                 }
 292             } break;
 293
 294             case D3DOP_STATERENDER: {
 295                 int i;
 296                 IDirect3DDevice2 *d3d_device2 = (IDirect3DDevice2 *)&lpDevice->IDirect3DDevice2_vtbl;
 297                 TRACE("STATERENDER      (%d)\n", count);
 298
 299                 for (i = 0; i < count; i++) {
 300                     LPD3DSTATE ci = (LPD3DSTATE) instr;
 301
 302                     IDirect3DDevice2_SetRenderState(d3d_device2, ci->u1.drstRenderStateType, ci->u2.dwArg[0]);
 303
 304                     instr += size;
 305                 }
 306             } break;
 307
 308             case D3DOP_PROCESSVERTICES:
 309             {
 310                 /* TODO: Share code with IDirect3DVertexBuffer::ProcessVertices and / or
 311                  * IWineD3DDevice::ProcessVertices
 312                  */
 313                 int i;
 314                 D3DMATRIX view_mat, world_mat, proj_mat;
 315                 TRACE("PROCESSVERTICES  (%d)\n", count);
 316
 317                 /* Get the transform and world matrix */
 318                 /* Note: D3DMATRIX is compatible with WINED3DMATRIX */
 319
 320                 IWineD3DDevice_GetTransform(lpDevice->wineD3DDevice,
 321                                             D3DTRANSFORMSTATE_VIEW,
 322                                             (WINED3DMATRIX*) &view_mat);
 323
 324                 IWineD3DDevice_GetTransform(lpDevice->wineD3DDevice,
 325                                             D3DTRANSFORMSTATE_PROJECTION,
 326                                             (WINED3DMATRIX*) &proj_mat);
 327
 328                 IWineD3DDevice_GetTransform(lpDevice->wineD3DDevice,
 329                                             WINED3DTS_WORLDMATRIX(0),
 330                                             (WINED3DMATRIX*) &world_mat);
 331
 332                 for (i = 0; i < count; i++) {
 333                     LPD3DPROCESSVERTICES ci = (LPD3DPROCESSVERTICES) instr;
 334
 335                     TRACE("  Start : %d Dest : %d Count : %d\n",
 336                           ci->wStart, ci->wDest, ci->dwCount);
 337                     TRACE("  Flags : ");
 338                     if (TRACE_ON(ddraw))
 339                     {
 340                         if (ci->dwFlags & D3DPROCESSVERTICES_COPY)
 341                             TRACE("COPY ");
 342                         if (ci->dwFlags & D3DPROCESSVERTICES_NOCOLOR)
 343                             TRACE("NOCOLOR ");
 344                         if (ci->dwFlags == D3DPROCESSVERTICES_OPMASK)
 345                             TRACE("OPMASK ");
 346                         if (ci->dwFlags & D3DPROCESSVERTICES_TRANSFORM)
 347                             TRACE("TRANSFORM ");
 348                         if (ci->dwFlags == D3DPROCESSVERTICES_TRANSFORMLIGHT)
 349                             TRACE("TRANSFORMLIGHT ");
 350                         if (ci->dwFlags & D3DPROCESSVERTICES_UPDATEEXTENTS)
 351                             TRACE("UPDATEEXTENTS ");
 352                         TRACE("\n");
 353                     }
 354
 355                     /* This is where doing Direct3D on top on OpenGL is quite difficult.
 356                        This method transforms a set of vertices using the CURRENT state
 357                        (lighting, projection, ...) but does not rasterize them.
 358                        They will only be put on screen later (with the POINT / LINE and
 359                        TRIANGLE op-codes). The problem is that you can have a triangle
 360                        with each point having been transformed using another state...
 361
 362                        In this implementation, I will emulate only ONE thing : each
 363                        vertex can have its own "WORLD" transformation (this is used in the
 364                        TWIST.EXE demo of the 5.2 SDK). I suppose that all vertices of the
 365                        execute buffer use the same state.
 366
 367                        If I find applications that change other states, I will try to do a
 368                        more 'fine-tuned' state emulation (but I may become quite tricky if
 369                        it changes a light position in the middle of a triangle).
 370
 371                        In this case, a 'direct' approach (i.e. without using OpenGL, but
 372                        writing our own 3D rasterizer) would be easier. */
 373
 374                     /* The current method (with the hypothesis that only the WORLD matrix
 375                        will change between two points) is like this :
 376                        - I transform 'manually' all the vertices with the current WORLD
 377                          matrix and store them in the vertex buffer
 378                        - during the rasterization phase, the WORLD matrix will be set to
 379                          the Identity matrix */
 380
 381                     /* Enough for the moment */
 382                     if (ci->dwFlags == D3DPROCESSVERTICES_TRANSFORMLIGHT) {
 383                         unsigned int nb;
 384                         D3DVERTEX  *src = ((LPD3DVERTEX)  ((char *)This->desc.lpData + vs)) + ci->wStart;
 385                         D3DTLVERTEX *dst = ((LPD3DTLVERTEX) (This->vertex_data)) + ci->wDest;
 386                         D3DMATRIX mat;
 387                         D3DVIEWPORT* Viewport = &lpViewport->viewports.vp1;
 388
 389                         if (TRACE_ON(ddraw))
 390                         {
 391                             TRACE("  Projection Matrix : (%p)\n", &proj_mat);
 392                             dump_D3DMATRIX(&proj_mat);
 393                             TRACE("  View       Matrix : (%p)\n", &view_mat);
 394                             dump_D3DMATRIX(&view_mat);
 395                             TRACE("  World Matrix : (%p)\n", &world_mat);
 396                             dump_D3DMATRIX(&world_mat);
 397                         }
 398
 399                         multiply_matrix(&mat,&view_mat,&world_mat);
 400                         multiply_matrix(&mat,&proj_mat,&mat);
 401
 402                         for (nb = 0; nb < ci->dwCount; nb++) {
 403                             /* No lighting yet */
 404                             dst->u5.color = 0xFFFFFFFF; /* Opaque white */
 405                             dst->u6.specular = 0xFF000000; /* No specular and no fog factor */
 406
 407                             dst->u7.tu  = src->u7.tu;
 408                             dst->u8.tv  = src->u8.tv;
 409
 410                             /* Now, the matrix multiplication */
 411                             dst->u1.sx = (src->u1.x * mat._11) + (src->u2.y * mat._21) + (src->u3.z * mat._31) + (1.0 * mat._41);
 412                             dst->u2.sy = (src->u1.x * mat._12) + (src->u2.y * mat._22) + (src->u3.z * mat._32) + (1.0 * mat._42);
 413                             dst->u3.sz = (src->u1.x * mat._13) + (src->u2.y * mat._23) + (src->u3.z * mat._33) + (1.0 * mat._43);
 414                             dst->u4.rhw = (src->u1.x * mat._14) + (src->u2.y * mat._24) + (src->u3.z * mat._34) + (1.0 * mat._44);
 415
 416                             dst->u1.sx = dst->u1.sx / dst->u4.rhw * Viewport->dvScaleX
 417                                        + Viewport->dwX + Viewport->dwWidth / 2;
 418                             dst->u2.sy = (-dst->u2.sy) / dst->u4.rhw * Viewport->dvScaleY
 419                                        + Viewport->dwY + Viewport->dwHeight / 2;
 420                             dst->u3.sz /= dst->u4.rhw;
 421                             dst->u4.rhw = 1 / dst->u4.rhw;
 422
 423                             src++;
 424                             dst++;
 425
 426                         }
 427                     } else if (ci->dwFlags == D3DPROCESSVERTICES_TRANSFORM) {
 428                         unsigned int nb;
 429                         D3DLVERTEX *src  = ((LPD3DLVERTEX) ((char *)This->desc.lpData + vs)) + ci->wStart;
 430                         D3DTLVERTEX *dst = ((LPD3DTLVERTEX) (This->vertex_data)) + ci->wDest;
 431                         D3DMATRIX mat;
 432                         D3DVIEWPORT* Viewport = &lpViewport->viewports.vp1;
 433
 434                         if (TRACE_ON(ddraw))
 435                         {
 436                             TRACE("  Projection Matrix : (%p)\n", &proj_mat);
 437                             dump_D3DMATRIX(&proj_mat);
 438                             TRACE("  View       Matrix : (%p)\n",&view_mat);
 439                             dump_D3DMATRIX(&view_mat);
 440                             TRACE("  World Matrix : (%p)\n", &world_mat);
 441                             dump_D3DMATRIX(&world_mat);
 442                         }
 443
 444                         multiply_matrix(&mat,&view_mat,&world_mat);
 445                         multiply_matrix(&mat,&proj_mat,&mat);
 446
 447                         for (nb = 0; nb < ci->dwCount; nb++) {
 448                             dst->u5.color = src->u4.color;
 449                             dst->u6.specular = src->u5.specular;
 450                             dst->u7.tu = src->u6.tu;
 451                             dst->u8.tv = src->u7.tv;
 452
 453                             /* Now, the matrix multiplication */
 454                             dst->u1.sx = (src->u1.x * mat._11) + (src->u2.y * mat._21) + (src->u3.z * mat._31) + (1.0 * mat._41);
 455                             dst->u2.sy = (src->u1.x * mat._12) + (src->u2.y * mat._22) + (src->u3.z * mat._32) + (1.0 * mat._42);
 456                             dst->u3.sz = (src->u1.x * mat._13) + (src->u2.y * mat._23) + (src->u3.z * mat._33) + (1.0 * mat._43);
 457                             dst->u4.rhw = (src->u1.x * mat._14) + (src->u2.y * mat._24) + (src->u3.z * mat._34) + (1.0 * mat._44);
 458
 459                             dst->u1.sx = dst->u1.sx / dst->u4.rhw * Viewport->dvScaleX
 460                                        + Viewport->dwX + Viewport->dwWidth / 2;
 461                             dst->u2.sy = (-dst->u2.sy) / dst->u4.rhw * Viewport->dvScaleY
 462                                        + Viewport->dwY + Viewport->dwHeight / 2;
 463
 464                             dst->u3.sz /= dst->u4.rhw;
 465                             dst->u4.rhw = 1 / dst->u4.rhw;
 466
 467                             src++;
 468                             dst++;
 469                         }
 470                     } else if (ci->dwFlags == D3DPROCESSVERTICES_COPY) {
 471                         D3DTLVERTEX *src = ((LPD3DTLVERTEX) ((char *)This->desc.lpData + vs)) + ci->wStart;
 472                         D3DTLVERTEX *dst = ((LPD3DTLVERTEX) (This->vertex_data)) + ci->wDest;
 473
 474                         memcpy(dst, src, ci->dwCount * sizeof(D3DTLVERTEX));
 475                     } else {
 476                         ERR("Unhandled vertex processing flag %#x.\n", ci->dwFlags);
 477                     }
 478
 479                     instr += size;
 480                 }
 481             } break;
 482
 483             case D3DOP_TEXTURELOAD: {
 484                 WARN("TEXTURELOAD-s    (%d)\n", count);
 485
 486                 instr += count * size;
 487             } break;
 488
 489             case D3DOP_EXIT: {
 490                 TRACE("EXIT             (%d)\n", count);
 491                 /* We did this instruction */
 492                 instr += size;
 493                 /* Exit this loop */
 494                 goto end_of_buffer;
 495             } break;
 496
 497             case D3DOP_BRANCHFORWARD: {
 498                 int i;
 499                 TRACE("BRANCHFORWARD    (%d)\n", count);
 500
 501                 for (i = 0; i < count; i++) {
 502                     LPD3DBRANCH ci = (LPD3DBRANCH) instr;
 503
 504                     if ((This->data.dsStatus.dwStatus & ci->dwMask) == ci->dwValue) {
 505                         if (!ci->bNegate) {
 506                             TRACE(" Branch to %d\n", ci->dwOffset);
 507                             if (ci->dwOffset) {
 508                                 instr = (char*)current + ci->dwOffset;
 509                                 break;
 510                             }
 511                         }
 512                     } else {
 513                         if (ci->bNegate) {
 514                             TRACE(" Branch to %d\n", ci->dwOffset);
 515                             if (ci->dwOffset) {
 516                                 instr = (char*)current + ci->dwOffset;
 517                                 break;
 518                             }
 519                         }
 520                     }
 521
 522                     instr += size;
 523                 }
 524             } break;
 525
 526             case D3DOP_SPAN: {
 527                 WARN("SPAN-s           (%d)\n", count);
 528
 529                 instr += count * size;
 530             } break;
 531
 532             case D3DOP_SETSTATUS: {
 533                 int i;
 534                 TRACE("SETSTATUS        (%d)\n", count);
 535
 536                 for (i = 0; i < count; i++) {
 537                     LPD3DSTATUS ci = (LPD3DSTATUS) instr;
 538
 539                     This->data.dsStatus = *ci;
 540
 541                     instr += size;
 542                 }
 543             } break;
 544
 545             default:
 546                 ERR("Unhandled OpCode %d !!!\n",current->bOpcode);
 547                 /* Try to save ... */
 548                 instr += count * size;
 549                 break;
 550         }
 551     }
 552
 553 end_of_buffer:
 554     ;
 555 }
 556
 557 /*****************************************************************************
 558  * IDirect3DExecuteBuffer::QueryInterface
 559  *
 560  * Well, a usual QueryInterface function. Don't know fur sure which
 561  * interfaces it can Query.
 562  *
 563  * Params:
 564  *  riid: The interface ID queried for
 565  *  obj: Address to return the interface pointer at
 566  *
 567  * Returns:
 568  *  D3D_OK in case of a success (S_OK? Think it's the same)
 569  *  OLE_E_ENUM_NOMORE if the interface wasn't found.
 570  *   (E_NOINTERFACE?? Don't know what I really need)
 571  *
 572  *****************************************************************************/
 573 static HRESULT WINAPI
 574 IDirect3DExecuteBufferImpl_QueryInterface(IDirect3DExecuteBuffer *iface,
 575                                           REFIID riid,
 576                                           void **obj)
 577 {
 578     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), obj);
 579
 580     *obj = NULL;
 581
 582     if ( IsEqualGUID( &IID_IUnknown,  riid ) ) {
 583         IDirect3DExecuteBuffer_AddRef(iface);
 584         *obj = iface;
 585         TRACE("  Creating IUnknown interface at %p.\n", *obj);
 586         return S_OK;
 587     }
 588     if ( IsEqualGUID( &IID_IDirect3DExecuteBuffer, riid ) ) {
 589         IDirect3DExecuteBuffer_AddRef(iface);
 590         *obj = iface;
 591         TRACE("  Creating IDirect3DExecuteBuffer interface %p\n", *obj);
 592         return S_OK;
 593     }
 594     FIXME("(%p): interface for IID %s NOT found!\n", iface, debugstr_guid(riid));
 595     return E_NOINTERFACE;
 596 }
 597
 598
 599 /*****************************************************************************
 600  * IDirect3DExecuteBuffer::AddRef
 601  *
 602  * A normal AddRef method, nothing special
 603  *
 604  * Returns:
 605  *  The new refcount
 606  *
 607  *****************************************************************************/
 608 static ULONG WINAPI
 609 IDirect3DExecuteBufferImpl_AddRef(IDirect3DExecuteBuffer *iface)
 610 {
 611     IDirect3DExecuteBufferImpl *This = (IDirect3DExecuteBufferImpl *)iface;
 612     ULONG ref = InterlockedIncrement(&This->ref);
 613
 614     TRACE("%p increasing refcount to %u.\n", This, ref);
 615
 616     return ref;
 617 }
 618
 619 /*****************************************************************************
 620  * IDirect3DExecuteBuffer::Release
 621  *
 622  * A normal Release method, nothing special
 623  *
 624  * Returns:
 625  *  The new refcount
 626  *
 627  *****************************************************************************/
 628 static ULONG WINAPI
 629 IDirect3DExecuteBufferImpl_Release(IDirect3DExecuteBuffer *iface)
 630 {
 631     IDirect3DExecuteBufferImpl *This = (IDirect3DExecuteBufferImpl *)iface;
 632     ULONG ref = InterlockedDecrement(&This->ref);
 633
 634     TRACE("%p decreasing refcount to %u.\n", This, ref);
 635
 636     if (!ref) {
 637         if (This->need_free)
 638             HeapFree(GetProcessHeap(),0,This->desc.lpData);
 639         HeapFree(GetProcessHeap(),0,This->vertex_data);
 640         HeapFree(GetProcessHeap(),0,This->indices);
 641         HeapFree(GetProcessHeap(),0,This);
 642         return 0;
 643     }
 644
 645     return ref;
 646 }
 647
 648 /*****************************************************************************
 649  * IDirect3DExecuteBuffer::Initialize
 650  *
 651  * Initializes the Execute Buffer. This method exists for COM compliance
 652  * Nothing to do here.
 653  *
 654  * Returns:
 655  *  D3D_OK
 656  *
 657  *****************************************************************************/
 658 static HRESULT WINAPI IDirect3DExecuteBufferImpl_Initialize(IDirect3DExecuteBuffer *iface,
 659         IDirect3DDevice *device, D3DEXECUTEBUFFERDESC *desc)
 660 {
 661     TRACE("iface %p, device %p, desc %p.\n", iface, device, desc);
 662
 663     return D3D_OK;
 664 }
 665
 666 /*****************************************************************************
 667  * IDirect3DExecuteBuffer::Lock
 668  *
 669  * Locks the buffer, so the app can write into it.
 670  *
 671  * Params:
 672  *  Desc: Pointer to return the buffer description. This Description contains
 673  *        a pointer to the buffer data.
 674  *
 675  * Returns:
 676  *  This implementation always returns D3D_OK
 677  *
 678  *****************************************************************************/
 679 static HRESULT WINAPI
 680 IDirect3DExecuteBufferImpl_Lock(IDirect3DExecuteBuffer *iface,
 681                                 D3DEXECUTEBUFFERDESC *lpDesc)
 682 {
 683     IDirect3DExecuteBufferImpl *This = (IDirect3DExecuteBufferImpl *)iface;
 684     DWORD dwSize;
 685
 686     TRACE("iface %p, desc %p.\n", iface, lpDesc);
 687
 688     dwSize = lpDesc->dwSize;
 689     memcpy(lpDesc, &This->desc, dwSize);
 690
 691     if (TRACE_ON(ddraw))
 692     {
 693         TRACE("  Returning description :\n");
 694         _dump_D3DEXECUTEBUFFERDESC(lpDesc);
 695     }
 696     return D3D_OK;
 697 }
 698
 699 /*****************************************************************************
 700  * IDirect3DExecuteBuffer::Unlock
 701  *
 702  * Unlocks the buffer. We don't have anything to do here
 703  *
 704  * Returns:
 705  *  This implementation always returns D3D_OK
 706  *
 707  *****************************************************************************/
 708 static HRESULT WINAPI IDirect3DExecuteBufferImpl_Unlock(IDirect3DExecuteBuffer *iface)
 709 {
 710     TRACE("iface %p.\n", iface);
 711
 712     return D3D_OK;
 713 }
 714
 715 /*****************************************************************************
 716  * IDirect3DExecuteBuffer::SetExecuteData
 717  *
 718  * Sets the execute data. This data is used to describe the buffer's content
 719  *
 720  * Params:
 721  *  Data: Pointer to a D3DEXECUTEDATA structure containing the data to
 722  *  assign
 723  *
 724  * Returns:
 725  *  D3D_OK on success
 726  *  DDERR_OUTOFMEMORY if the vertex buffer allocation failed
 727  *
 728  *****************************************************************************/
 729 static HRESULT WINAPI
 730 IDirect3DExecuteBufferImpl_SetExecuteData(IDirect3DExecuteBuffer *iface,
 731                                           D3DEXECUTEDATA *lpData)
 732 {
 733     IDirect3DExecuteBufferImpl *This = (IDirect3DExecuteBufferImpl *)iface;
 734     DWORD nbvert;
 735
 736     TRACE("iface %p, data %p.\n", iface, lpData);
 737
 738     memcpy(&This->data, lpData, lpData->dwSize);
 739
 740     /* Get the number of vertices in the execute buffer */
 741     nbvert = This->data.dwVertexCount;
 742
 743     /* Prepares the transformed vertex buffer */
 744     HeapFree(GetProcessHeap(), 0, This->vertex_data);
 745     This->vertex_data = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, nbvert * sizeof(D3DTLVERTEX));
 746
 747     if (TRACE_ON(ddraw))
 748         _dump_executedata(lpData);
 749
 750     return D3D_OK;
 751 }
 752
 753 /*****************************************************************************
 754  * IDirect3DExecuteBuffer::GetExecuteData
 755  *
 756  * Returns the data in the execute buffer
 757  *
 758  * Params:
 759  *  Data: Pointer to a D3DEXECUTEDATA structure used to return data
 760  *
 761  * Returns:
 762  *  D3D_OK on success
 763  *
 764  *****************************************************************************/
 765 static HRESULT WINAPI
 766 IDirect3DExecuteBufferImpl_GetExecuteData(IDirect3DExecuteBuffer *iface,
 767                                           D3DEXECUTEDATA *lpData)
 768 {
 769     IDirect3DExecuteBufferImpl *This = (IDirect3DExecuteBufferImpl *)iface;
 770     DWORD dwSize;
 771
 772     TRACE("iface %p, data %p.\n", iface, lpData);
 773
 774     dwSize = lpData->dwSize;
 775     memcpy(lpData, &This->data, dwSize);
 776
 777     if (TRACE_ON(ddraw))
 778     {
 779         TRACE("Returning data :\n");
 780         _dump_executedata(lpData);
 781     }
 782
 783     return DD_OK;
 784 }
 785
 786 /*****************************************************************************
 787  * IDirect3DExecuteBuffer::Validate
 788  *
 789  * DirectX 5 SDK: "The IDirect3DExecuteBuffer::Validate method is not
 790  * currently implemented"
 791  *
 792  * Params:
 793  *  ?
 794  *
 795  * Returns:
 796  *  DDERR_UNSUPPORTED, because it's not implemented in Windows.
 797  *
 798  *****************************************************************************/
 799 static HRESULT WINAPI IDirect3DExecuteBufferImpl_Validate(IDirect3DExecuteBuffer *iface,
 800         DWORD *offset, LPD3DVALIDATECALLBACK callback, void *context, DWORD reserved)
 801 {
 802     TRACE("iface %p, offset %p, callback %p, context %p, reserved %#x.\n",
 803             iface, offset, callback, context, reserved);
 804
 805     WARN("Not implemented.\n");
 806
 807     return DDERR_UNSUPPORTED; /* Unchecked */
 808 }
 809
 810 /*****************************************************************************
 811  * IDirect3DExecuteBuffer::Optimize
 812  *
 813  * DirectX5 SDK: "The IDirect3DExecuteBuffer::Optimize method is not
 814  * currently supported"
 815  *
 816  * Params:
 817  *  Dummy: Seems to be an unused dummy ;)
 818  *
 819  * Returns:
 820  *  DDERR_UNSUPPORTED, because it's not implemented in Windows.
 821  *
 822  *****************************************************************************/
 823 static HRESULT WINAPI IDirect3DExecuteBufferImpl_Optimize(IDirect3DExecuteBuffer *iface, DWORD reserved)
 824 {
 825     TRACE("iface %p, reserved %#x.\n", iface, reserved);
 826
 827     WARN("Not implemented.\n");
 828
 829     return DDERR_UNSUPPORTED; /* Unchecked */
 830 }
 831
 832 static const struct IDirect3DExecuteBufferVtbl d3d_execute_buffer_vtbl =
 833 {
 834     IDirect3DExecuteBufferImpl_QueryInterface,
 835     IDirect3DExecuteBufferImpl_AddRef,
 836     IDirect3DExecuteBufferImpl_Release,
 837     IDirect3DExecuteBufferImpl_Initialize,
 838     IDirect3DExecuteBufferImpl_Lock,
 839     IDirect3DExecuteBufferImpl_Unlock,
 840     IDirect3DExecuteBufferImpl_SetExecuteData,
 841     IDirect3DExecuteBufferImpl_GetExecuteData,
 842     IDirect3DExecuteBufferImpl_Validate,
 843     IDirect3DExecuteBufferImpl_Optimize,
 844 };
 845
 846 HRESULT d3d_execute_buffer_init(IDirect3DExecuteBufferImpl *execute_buffer,
 847         IDirect3DDeviceImpl *device, D3DEXECUTEBUFFERDESC *desc)
 848 {
 849     execute_buffer->lpVtbl = &d3d_execute_buffer_vtbl;
 850     execute_buffer->ref = 1;
 851     execute_buffer->d3ddev = device;
 852
 853     /* Initializes memory */
 854     memcpy(&execute_buffer->desc, desc, desc->dwSize);
 855
 856     /* No buffer given */
 857     if (!(execute_buffer->desc.dwFlags & D3DDEB_LPDATA))
 858         execute_buffer->desc.lpData = NULL;
 859
 860     /* No buffer size given */
 861     if (!(execute_buffer->desc.dwFlags & D3DDEB_BUFSIZE))
 862         execute_buffer->desc.dwBufferSize = 0;
 863
 864     /* Create buffer if asked */
 865     if (!execute_buffer->desc.lpData && execute_buffer->desc.dwBufferSize)
 866     {
 867         execute_buffer->need_free = TRUE;
 868         execute_buffer->desc.lpData = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, execute_buffer->desc.dwBufferSize);
 869         if (!execute_buffer->desc.lpData)
 870         {
 871             ERR("Failed to allocate execute buffer data.\n");
 872             return DDERR_OUTOFMEMORY;
 873         }
 874     }
 875
 876     execute_buffer->desc.dwFlags |= D3DDEB_LPDATA;
 877
 878     return D3D_OK;
 879 }