git.oblomov.eu Git - wine/blob - 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 HRESULT d3d_execute_buffer_execute(IDirect3DExecuteBufferImpl *This,
  72         IDirect3DDeviceImpl *lpDevice, IDirect3DViewportImpl *lpViewport)
  73 {
  74     /* DWORD bs = This->desc.dwBufferSize; */
  75     DWORD vs = This->data.dwVertexOffset;
  76     /* DWORD vc = This->data.dwVertexCount; */
  77     DWORD is = This->data.dwInstructionOffset;
  78     /* DWORD il = This->data.dwInstructionLength; */
  79
  80     char *instr = (char *)This->desc.lpData + is;
  81
  82     if (lpViewport->active_device != lpDevice)
  83     {
  84         WARN("Viewport %p active device is %p.\n",
  85                 lpViewport, lpViewport->active_device);
  86         return DDERR_INVALIDPARAMS;
  87     }
  88
  89     /* Activate the viewport */
  90     viewport_activate(lpViewport, FALSE);
  91
  92     TRACE("ExecuteData :\n");
  93     if (TRACE_ON(ddraw))
  94       _dump_executedata(&(This->data));
  95
  96     while (1) {
  97         LPD3DINSTRUCTION current = (LPD3DINSTRUCTION) instr;
  98         BYTE size;
  99         WORD count;
 100
 101         count = current->wCount;
 102         size = current->bSize;
 103         instr += sizeof(D3DINSTRUCTION);
 104
 105         switch (current->bOpcode) {
 106             case D3DOP_POINT: {
 107                 WARN("POINT-s          (%d)\n", count);
 108                 instr += count * size;
 109             } break;
 110
 111             case D3DOP_LINE: {
 112                 WARN("LINE-s           (%d)\n", count);
 113                 instr += count * size;
 114             } break;
 115
 116             case D3DOP_TRIANGLE: {
 117                 int i;
 118                 D3DTLVERTEX *tl_vx = This->vertex_data;
 119                 TRACE("TRIANGLE         (%d)\n", count);
 120
 121                 if (count*3>This->nb_indices) {
 122                     This->nb_indices = count * 3;
 123                     HeapFree(GetProcessHeap(),0,This->indices);
 124                     This->indices = HeapAlloc(GetProcessHeap(),0,sizeof(WORD)*This->nb_indices);
 125                 }
 126
 127                 for (i = 0; i < count; i++) {
 128                     LPD3DTRIANGLE ci = (LPD3DTRIANGLE) instr;
 129                     TRACE("  v1: %d  v2: %d  v3: %d\n",ci->u1.v1, ci->u2.v2, ci->u3.v3);
 130                     TRACE("  Flags : ");
 131                     if (TRACE_ON(ddraw))
 132                     {
 133                         /* Wireframe */
 134                         if (ci->wFlags & D3DTRIFLAG_EDGEENABLE1)
 135                             TRACE("EDGEENABLE1 ");
 136                         if (ci->wFlags & D3DTRIFLAG_EDGEENABLE2)
 137                             TRACE("EDGEENABLE2 ");
 138                         if (ci->wFlags & D3DTRIFLAG_EDGEENABLE1)
 139                             TRACE("EDGEENABLE3 ");
 140                         /* Strips / Fans */
 141                         if (ci->wFlags == D3DTRIFLAG_EVEN)
 142                             TRACE("EVEN ");
 143                         if (ci->wFlags == D3DTRIFLAG_ODD)
 144                             TRACE("ODD ");
 145                         if (ci->wFlags == D3DTRIFLAG_START)
 146                             TRACE("START ");
 147                         if ((ci->wFlags > 0) && (ci->wFlags < 30))
 148                             TRACE("STARTFLAT(%u) ", ci->wFlags);
 149                         TRACE("\n");
 150                     }
 151                     This->indices[(i * 3)    ] = ci->u1.v1;
 152                     This->indices[(i * 3) + 1] = ci->u2.v2;
 153                     This->indices[(i * 3) + 2] = ci->u3.v3;
 154                     instr += size;
 155                 }
 156                 /* IDirect3DDevices have color keying always enabled -
 157                  * enable it before drawing. This overwrites any ALPHA*
 158                  * render state. */
 159                 wined3d_device_set_render_state(lpDevice->wined3d_device, WINED3DRS_COLORKEYENABLE, 1);
 160                 IDirect3DDevice7_DrawIndexedPrimitive((IDirect3DDevice7 *)lpDevice,
 161                         D3DPT_TRIANGLELIST, D3DFVF_TLVERTEX, tl_vx, 0, This->indices, count * 3, 0);
 162             } break;
 163
 164             case D3DOP_MATRIXLOAD:
 165                 WARN("MATRIXLOAD-s     (%d)\n", count);
 166                 instr += count * size;
 167                 break;
 168
 169             case D3DOP_MATRIXMULTIPLY: {
 170                 int i;
 171                 TRACE("MATRIXMULTIPLY   (%d)\n", count);
 172
 173                 for (i = 0; i < count; ++i)
 174                 {
 175                     D3DMATRIXMULTIPLY *ci = (D3DMATRIXMULTIPLY *)instr;
 176                     D3DMATRIX *a, *b, *c;
 177
 178                     a = ddraw_get_object(&lpDevice->handle_table, ci->hDestMatrix - 1, DDRAW_HANDLE_MATRIX);
 179                     b = ddraw_get_object(&lpDevice->handle_table, ci->hSrcMatrix1 - 1, DDRAW_HANDLE_MATRIX);
 180                     c = ddraw_get_object(&lpDevice->handle_table, ci->hSrcMatrix2 - 1, DDRAW_HANDLE_MATRIX);
 181
 182                     if (!a || !b || !c)
 183                     {
 184                         ERR("Invalid matrix handle (a %#x -> %p, b %#x -> %p, c %#x -> %p).\n",
 185                                 ci->hDestMatrix, a, ci->hSrcMatrix1, b, ci->hSrcMatrix2, c);
 186                     }
 187                     else
 188                     {
 189                         TRACE("dst %p, src1 %p, src2 %p.\n", a, b, c);
 190                         multiply_matrix(a, c, b);
 191                     }
 192
 193                     instr += size;
 194                 }
 195             } break;
 196
 197             case D3DOP_STATETRANSFORM: {
 198                 int i;
 199                 TRACE("STATETRANSFORM   (%d)\n", count);
 200
 201                 for (i = 0; i < count; ++i)
 202                 {
 203                     D3DSTATE *ci = (D3DSTATE *)instr;
 204                     D3DMATRIX *m;
 205
 206                     m = ddraw_get_object(&lpDevice->handle_table, ci->u2.dwArg[0] - 1, DDRAW_HANDLE_MATRIX);
 207                     if (!m)
 208                     {
 209                         ERR("Invalid matrix handle %#x.\n", ci->u2.dwArg[0]);
 210                     }
 211                     else
 212                     {
 213                         if (ci->u1.dtstTransformStateType == D3DTRANSFORMSTATE_WORLD)
 214                             lpDevice->world = ci->u2.dwArg[0];
 215                         if (ci->u1.dtstTransformStateType == D3DTRANSFORMSTATE_VIEW)
 216                             lpDevice->view = ci->u2.dwArg[0];
 217                         if (ci->u1.dtstTransformStateType == D3DTRANSFORMSTATE_PROJECTION)
 218                             lpDevice->proj = ci->u2.dwArg[0];
 219                         IDirect3DDevice7_SetTransform((IDirect3DDevice7 *)lpDevice,
 220                                 ci->u1.dtstTransformStateType, m);
 221                     }
 222
 223                     instr += size;
 224                 }
 225             } break;
 226
 227             case D3DOP_STATELIGHT: {
 228                 int i;
 229                 TRACE("STATELIGHT       (%d)\n", count);
 230
 231                 for (i = 0; i < count; i++) {
 232                     LPD3DSTATE ci = (LPD3DSTATE) instr;
 233
 234                     TRACE("(%08x,%08x)\n", ci->u1.dlstLightStateType, ci->u2.dwArg[0]);
 235
 236                     if (!ci->u1.dlstLightStateType || (ci->u1.dlstLightStateType > D3DLIGHTSTATE_COLORVERTEX))
 237                         ERR("Unexpected Light State Type %d\n", ci->u1.dlstLightStateType);
 238                     else if (ci->u1.dlstLightStateType == D3DLIGHTSTATE_MATERIAL /* 1 */)
 239                     {
 240                         IDirect3DMaterialImpl *m;
 241
 242                         m = ddraw_get_object(&lpDevice->handle_table, ci->u2.dwArg[0] - 1, DDRAW_HANDLE_MATERIAL);
 243                         if (!m)
 244                             ERR("Invalid material handle %#x.\n", ci->u2.dwArg[0]);
 245                         else
 246                             material_activate(m);
 247                     }
 248                     else if (ci->u1.dlstLightStateType == D3DLIGHTSTATE_COLORMODEL /* 3 */)
 249                     {
 250                         switch (ci->u2.dwArg[0]) {
 251                             case D3DCOLOR_MONO:
 252                                 ERR("DDCOLOR_MONO should not happen!\n");
 253                                 break;
 254                             case D3DCOLOR_RGB:
 255                                 /* We are already in this mode */
 256                                 break;
 257                             default:
 258                                 ERR("Unknown color model!\n");
 259                         }
 260                     } else {
 261                         D3DRENDERSTATETYPE rs = 0;
 262                         switch (ci->u1.dlstLightStateType) {
 263
 264                             case D3DLIGHTSTATE_AMBIENT:       /* 2 */
 265                                 rs = D3DRENDERSTATE_AMBIENT;
 266                                 break;
 267                             case D3DLIGHTSTATE_FOGMODE:       /* 4 */
 268                                 rs = D3DRENDERSTATE_FOGVERTEXMODE;
 269                                 break;
 270                             case D3DLIGHTSTATE_FOGSTART:      /* 5 */
 271                                 rs = D3DRENDERSTATE_FOGSTART;
 272                                 break;
 273                             case D3DLIGHTSTATE_FOGEND:        /* 6 */
 274                                 rs = D3DRENDERSTATE_FOGEND;
 275                                 break;
 276                             case D3DLIGHTSTATE_FOGDENSITY:    /* 7 */
 277                                 rs = D3DRENDERSTATE_FOGDENSITY;
 278                                 break;
 279                             case D3DLIGHTSTATE_COLORVERTEX:   /* 8 */
 280                                 rs = D3DRENDERSTATE_COLORVERTEX;
 281                                 break;
 282                             default:
 283                                 break;
 284                         }
 285
 286                         IDirect3DDevice7_SetRenderState((IDirect3DDevice7 *)lpDevice, rs, ci->u2.dwArg[0]);
 287                     }
 288
 289                     instr += size;
 290                 }
 291             } break;
 292
 293             case D3DOP_STATERENDER: {
 294                 int i;
 295                 IDirect3DDevice2 *d3d_device2 = (IDirect3DDevice2 *)&lpDevice->IDirect3DDevice2_vtbl;
 296                 TRACE("STATERENDER      (%d)\n", count);
 297
 298                 for (i = 0; i < count; i++) {
 299                     LPD3DSTATE ci = (LPD3DSTATE) instr;
 300
 301                     IDirect3DDevice2_SetRenderState(d3d_device2, ci->u1.drstRenderStateType, ci->u2.dwArg[0]);
 302
 303                     instr += size;
 304                 }
 305             } break;
 306
 307             case D3DOP_PROCESSVERTICES:
 308             {
 309                 /* TODO: Share code with IDirect3DVertexBuffer::ProcessVertices and / or
 310                  * IWineD3DDevice::ProcessVertices
 311                  */
 312                 int i;
 313                 D3DMATRIX view_mat, world_mat, proj_mat;
 314                 TRACE("PROCESSVERTICES  (%d)\n", count);
 315
 316                 /* Get the transform and world matrix */
 317                 /* Note: D3DMATRIX is compatible with WINED3DMATRIX */
 318                 wined3d_device_get_transform(lpDevice->wined3d_device,
 319                         D3DTRANSFORMSTATE_VIEW, (WINED3DMATRIX *)&view_mat);
 320                 wined3d_device_get_transform(lpDevice->wined3d_device,
 321                         D3DTRANSFORMSTATE_PROJECTION, (WINED3DMATRIX *)&proj_mat);
 322                 wined3d_device_get_transform(lpDevice->wined3d_device,
 323                         WINED3DTS_WORLDMATRIX(0), (WINED3DMATRIX *)&world_mat);
 324
 325                 for (i = 0; i < count; i++) {
 326                     LPD3DPROCESSVERTICES ci = (LPD3DPROCESSVERTICES) instr;
 327
 328                     TRACE("  Start : %d Dest : %d Count : %d\n",
 329                           ci->wStart, ci->wDest, ci->dwCount);
 330                     TRACE("  Flags : ");
 331                     if (TRACE_ON(ddraw))
 332                     {
 333                         if (ci->dwFlags & D3DPROCESSVERTICES_COPY)
 334                             TRACE("COPY ");
 335                         if (ci->dwFlags & D3DPROCESSVERTICES_NOCOLOR)
 336                             TRACE("NOCOLOR ");
 337                         if (ci->dwFlags == D3DPROCESSVERTICES_OPMASK)
 338                             TRACE("OPMASK ");
 339                         if (ci->dwFlags & D3DPROCESSVERTICES_TRANSFORM)
 340                             TRACE("TRANSFORM ");
 341                         if (ci->dwFlags == D3DPROCESSVERTICES_TRANSFORMLIGHT)
 342                             TRACE("TRANSFORMLIGHT ");
 343                         if (ci->dwFlags & D3DPROCESSVERTICES_UPDATEEXTENTS)
 344                             TRACE("UPDATEEXTENTS ");
 345                         TRACE("\n");
 346                     }
 347
 348                     /* This is where doing Direct3D on top on OpenGL is quite difficult.
 349                        This method transforms a set of vertices using the CURRENT state
 350                        (lighting, projection, ...) but does not rasterize them.
 351                        They will only be put on screen later (with the POINT / LINE and
 352                        TRIANGLE op-codes). The problem is that you can have a triangle
 353                        with each point having been transformed using another state...
 354
 355                        In this implementation, I will emulate only ONE thing : each
 356                        vertex can have its own "WORLD" transformation (this is used in the
 357                        TWIST.EXE demo of the 5.2 SDK). I suppose that all vertices of the
 358                        execute buffer use the same state.
 359
 360                        If I find applications that change other states, I will try to do a
 361                        more 'fine-tuned' state emulation (but I may become quite tricky if
 362                        it changes a light position in the middle of a triangle).
 363
 364                        In this case, a 'direct' approach (i.e. without using OpenGL, but
 365                        writing our own 3D rasterizer) would be easier. */
 366
 367                     /* The current method (with the hypothesis that only the WORLD matrix
 368                        will change between two points) is like this :
 369                        - I transform 'manually' all the vertices with the current WORLD
 370                          matrix and store them in the vertex buffer
 371                        - during the rasterization phase, the WORLD matrix will be set to
 372                          the Identity matrix */
 373
 374                     /* Enough for the moment */
 375                     if (ci->dwFlags == D3DPROCESSVERTICES_TRANSFORMLIGHT) {
 376                         unsigned int nb;
 377                         D3DVERTEX  *src = ((LPD3DVERTEX)  ((char *)This->desc.lpData + vs)) + ci->wStart;
 378                         D3DTLVERTEX *dst = ((LPD3DTLVERTEX) (This->vertex_data)) + ci->wDest;
 379                         D3DMATRIX mat;
 380                         D3DVIEWPORT* Viewport = &lpViewport->viewports.vp1;
 381
 382                         if (TRACE_ON(ddraw))
 383                         {
 384                             TRACE("  Projection Matrix : (%p)\n", &proj_mat);
 385                             dump_D3DMATRIX(&proj_mat);
 386                             TRACE("  View       Matrix : (%p)\n", &view_mat);
 387                             dump_D3DMATRIX(&view_mat);
 388                             TRACE("  World Matrix : (%p)\n", &world_mat);
 389                             dump_D3DMATRIX(&world_mat);
 390                         }
 391
 392                         multiply_matrix(&mat,&view_mat,&world_mat);
 393                         multiply_matrix(&mat,&proj_mat,&mat);
 394
 395                         for (nb = 0; nb < ci->dwCount; nb++) {
 396                             /* No lighting yet */
 397                             dst->u5.color = 0xFFFFFFFF; /* Opaque white */
 398                             dst->u6.specular = 0xFF000000; /* No specular and no fog factor */
 399
 400                             dst->u7.tu  = src->u7.tu;
 401                             dst->u8.tv  = src->u8.tv;
 402
 403                             /* Now, the matrix multiplication */
 404                             dst->u1.sx = (src->u1.x * mat._11) + (src->u2.y * mat._21) + (src->u3.z * mat._31) + (1.0 * mat._41);
 405                             dst->u2.sy = (src->u1.x * mat._12) + (src->u2.y * mat._22) + (src->u3.z * mat._32) + (1.0 * mat._42);
 406                             dst->u3.sz = (src->u1.x * mat._13) + (src->u2.y * mat._23) + (src->u3.z * mat._33) + (1.0 * mat._43);
 407                             dst->u4.rhw = (src->u1.x * mat._14) + (src->u2.y * mat._24) + (src->u3.z * mat._34) + (1.0 * mat._44);
 408
 409                             dst->u1.sx = dst->u1.sx / dst->u4.rhw * Viewport->dvScaleX
 410                                        + Viewport->dwX + Viewport->dwWidth / 2;
 411                             dst->u2.sy = (-dst->u2.sy) / dst->u4.rhw * Viewport->dvScaleY
 412                                        + Viewport->dwY + Viewport->dwHeight / 2;
 413                             dst->u3.sz /= dst->u4.rhw;
 414                             dst->u4.rhw = 1 / dst->u4.rhw;
 415
 416                             src++;
 417                             dst++;
 418
 419                         }
 420                     } else if (ci->dwFlags == D3DPROCESSVERTICES_TRANSFORM) {
 421                         unsigned int nb;
 422                         D3DLVERTEX *src  = ((LPD3DLVERTEX) ((char *)This->desc.lpData + vs)) + ci->wStart;
 423                         D3DTLVERTEX *dst = ((LPD3DTLVERTEX) (This->vertex_data)) + ci->wDest;
 424                         D3DMATRIX mat;
 425                         D3DVIEWPORT* Viewport = &lpViewport->viewports.vp1;
 426
 427                         if (TRACE_ON(ddraw))
 428                         {
 429                             TRACE("  Projection Matrix : (%p)\n", &proj_mat);
 430                             dump_D3DMATRIX(&proj_mat);
 431                             TRACE("  View       Matrix : (%p)\n",&view_mat);
 432                             dump_D3DMATRIX(&view_mat);
 433                             TRACE("  World Matrix : (%p)\n", &world_mat);
 434                             dump_D3DMATRIX(&world_mat);
 435                         }
 436
 437                         multiply_matrix(&mat,&view_mat,&world_mat);
 438                         multiply_matrix(&mat,&proj_mat,&mat);
 439
 440                         for (nb = 0; nb < ci->dwCount; nb++) {
 441                             dst->u5.color = src->u4.color;
 442                             dst->u6.specular = src->u5.specular;
 443                             dst->u7.tu = src->u6.tu;
 444                             dst->u8.tv = src->u7.tv;
 445
 446                             /* Now, the matrix multiplication */
 447                             dst->u1.sx = (src->u1.x * mat._11) + (src->u2.y * mat._21) + (src->u3.z * mat._31) + (1.0 * mat._41);
 448                             dst->u2.sy = (src->u1.x * mat._12) + (src->u2.y * mat._22) + (src->u3.z * mat._32) + (1.0 * mat._42);
 449                             dst->u3.sz = (src->u1.x * mat._13) + (src->u2.y * mat._23) + (src->u3.z * mat._33) + (1.0 * mat._43);
 450                             dst->u4.rhw = (src->u1.x * mat._14) + (src->u2.y * mat._24) + (src->u3.z * mat._34) + (1.0 * mat._44);
 451
 452                             dst->u1.sx = dst->u1.sx / dst->u4.rhw * Viewport->dvScaleX
 453                                        + Viewport->dwX + Viewport->dwWidth / 2;
 454                             dst->u2.sy = (-dst->u2.sy) / dst->u4.rhw * Viewport->dvScaleY
 455                                        + Viewport->dwY + Viewport->dwHeight / 2;
 456
 457                             dst->u3.sz /= dst->u4.rhw;
 458                             dst->u4.rhw = 1 / dst->u4.rhw;
 459
 460                             src++;
 461                             dst++;
 462                         }
 463                     } else if (ci->dwFlags == D3DPROCESSVERTICES_COPY) {
 464                         D3DTLVERTEX *src = ((LPD3DTLVERTEX) ((char *)This->desc.lpData + vs)) + ci->wStart;
 465                         D3DTLVERTEX *dst = ((LPD3DTLVERTEX) (This->vertex_data)) + ci->wDest;
 466
 467                         memcpy(dst, src, ci->dwCount * sizeof(D3DTLVERTEX));
 468                     } else {
 469                         ERR("Unhandled vertex processing flag %#x.\n", ci->dwFlags);
 470                     }
 471
 472                     instr += size;
 473                 }
 474             } break;
 475
 476             case D3DOP_TEXTURELOAD: {
 477                 WARN("TEXTURELOAD-s    (%d)\n", count);
 478
 479                 instr += count * size;
 480             } break;
 481
 482             case D3DOP_EXIT: {
 483                 TRACE("EXIT             (%d)\n", count);
 484                 /* We did this instruction */
 485                 instr += size;
 486                 /* Exit this loop */
 487                 goto end_of_buffer;
 488             } break;
 489
 490             case D3DOP_BRANCHFORWARD: {
 491                 int i;
 492                 TRACE("BRANCHFORWARD    (%d)\n", count);
 493
 494                 for (i = 0; i < count; i++) {
 495                     LPD3DBRANCH ci = (LPD3DBRANCH) instr;
 496
 497                     if ((This->data.dsStatus.dwStatus & ci->dwMask) == ci->dwValue) {
 498                         if (!ci->bNegate) {
 499                             TRACE(" Branch to %d\n", ci->dwOffset);
 500                             if (ci->dwOffset) {
 501                                 instr = (char*)current + ci->dwOffset;
 502                                 break;
 503                             }
 504                         }
 505                     } else {
 506                         if (ci->bNegate) {
 507                             TRACE(" Branch to %d\n", ci->dwOffset);
 508                             if (ci->dwOffset) {
 509                                 instr = (char*)current + ci->dwOffset;
 510                                 break;
 511                             }
 512                         }
 513                     }
 514
 515                     instr += size;
 516                 }
 517             } break;
 518
 519             case D3DOP_SPAN: {
 520                 WARN("SPAN-s           (%d)\n", count);
 521
 522                 instr += count * size;
 523             } break;
 524
 525             case D3DOP_SETSTATUS: {
 526                 int i;
 527                 TRACE("SETSTATUS        (%d)\n", count);
 528
 529                 for (i = 0; i < count; i++) {
 530                     LPD3DSTATUS ci = (LPD3DSTATUS) instr;
 531
 532                     This->data.dsStatus = *ci;
 533
 534                     instr += size;
 535                 }
 536             } break;
 537
 538             default:
 539                 ERR("Unhandled OpCode %d !!!\n",current->bOpcode);
 540                 /* Try to save ... */
 541                 instr += count * size;
 542                 break;
 543         }
 544     }
 545
 546 end_of_buffer:
 547     return D3D_OK;
 548 }
 549
 550 /*****************************************************************************
 551  * IDirect3DExecuteBuffer::QueryInterface
 552  *
 553  * Well, a usual QueryInterface function. Don't know fur sure which
 554  * interfaces it can Query.
 555  *
 556  * Params:
 557  *  riid: The interface ID queried for
 558  *  obj: Address to return the interface pointer at
 559  *
 560  * Returns:
 561  *  D3D_OK in case of a success (S_OK? Think it's the same)
 562  *  OLE_E_ENUM_NOMORE if the interface wasn't found.
 563  *   (E_NOINTERFACE?? Don't know what I really need)
 564  *
 565  *****************************************************************************/
 566 static HRESULT WINAPI
 567 IDirect3DExecuteBufferImpl_QueryInterface(IDirect3DExecuteBuffer *iface,
 568                                           REFIID riid,
 569                                           void **obj)
 570 {
 571     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), obj);
 572
 573     *obj = NULL;
 574
 575     if ( IsEqualGUID( &IID_IUnknown,  riid ) ) {
 576         IDirect3DExecuteBuffer_AddRef(iface);
 577         *obj = iface;
 578         TRACE("  Creating IUnknown interface at %p.\n", *obj);
 579         return S_OK;
 580     }
 581     if ( IsEqualGUID( &IID_IDirect3DExecuteBuffer, riid ) ) {
 582         IDirect3DExecuteBuffer_AddRef(iface);
 583         *obj = iface;
 584         TRACE("  Creating IDirect3DExecuteBuffer interface %p\n", *obj);
 585         return S_OK;
 586     }
 587     FIXME("(%p): interface for IID %s NOT found!\n", iface, debugstr_guid(riid));
 588     return E_NOINTERFACE;
 589 }
 590
 591
 592 /*****************************************************************************
 593  * IDirect3DExecuteBuffer::AddRef
 594  *
 595  * A normal AddRef method, nothing special
 596  *
 597  * Returns:
 598  *  The new refcount
 599  *
 600  *****************************************************************************/
 601 static ULONG WINAPI
 602 IDirect3DExecuteBufferImpl_AddRef(IDirect3DExecuteBuffer *iface)
 603 {
 604     IDirect3DExecuteBufferImpl *This = (IDirect3DExecuteBufferImpl *)iface;
 605     ULONG ref = InterlockedIncrement(&This->ref);
 606
 607     TRACE("%p increasing refcount to %u.\n", This, ref);
 608
 609     return ref;
 610 }
 611
 612 /*****************************************************************************
 613  * IDirect3DExecuteBuffer::Release
 614  *
 615  * A normal Release method, nothing special
 616  *
 617  * Returns:
 618  *  The new refcount
 619  *
 620  *****************************************************************************/
 621 static ULONG WINAPI
 622 IDirect3DExecuteBufferImpl_Release(IDirect3DExecuteBuffer *iface)
 623 {
 624     IDirect3DExecuteBufferImpl *This = (IDirect3DExecuteBufferImpl *)iface;
 625     ULONG ref = InterlockedDecrement(&This->ref);
 626
 627     TRACE("%p decreasing refcount to %u.\n", This, ref);
 628
 629     if (!ref) {
 630         if (This->need_free)
 631             HeapFree(GetProcessHeap(),0,This->desc.lpData);
 632         HeapFree(GetProcessHeap(),0,This->vertex_data);
 633         HeapFree(GetProcessHeap(),0,This->indices);
 634         HeapFree(GetProcessHeap(),0,This);
 635         return 0;
 636     }
 637
 638     return ref;
 639 }
 640
 641 /*****************************************************************************
 642  * IDirect3DExecuteBuffer::Initialize
 643  *
 644  * Initializes the Execute Buffer. This method exists for COM compliance
 645  * Nothing to do here.
 646  *
 647  * Returns:
 648  *  D3D_OK
 649  *
 650  *****************************************************************************/
 651 static HRESULT WINAPI IDirect3DExecuteBufferImpl_Initialize(IDirect3DExecuteBuffer *iface,
 652         IDirect3DDevice *device, D3DEXECUTEBUFFERDESC *desc)
 653 {
 654     TRACE("iface %p, device %p, desc %p.\n", iface, device, desc);
 655
 656     return D3D_OK;
 657 }
 658
 659 /*****************************************************************************
 660  * IDirect3DExecuteBuffer::Lock
 661  *
 662  * Locks the buffer, so the app can write into it.
 663  *
 664  * Params:
 665  *  Desc: Pointer to return the buffer description. This Description contains
 666  *        a pointer to the buffer data.
 667  *
 668  * Returns:
 669  *  This implementation always returns D3D_OK
 670  *
 671  *****************************************************************************/
 672 static HRESULT WINAPI
 673 IDirect3DExecuteBufferImpl_Lock(IDirect3DExecuteBuffer *iface,
 674                                 D3DEXECUTEBUFFERDESC *lpDesc)
 675 {
 676     IDirect3DExecuteBufferImpl *This = (IDirect3DExecuteBufferImpl *)iface;
 677     DWORD dwSize;
 678
 679     TRACE("iface %p, desc %p.\n", iface, lpDesc);
 680
 681     dwSize = lpDesc->dwSize;
 682     memcpy(lpDesc, &This->desc, dwSize);
 683
 684     if (TRACE_ON(ddraw))
 685     {
 686         TRACE("  Returning description :\n");
 687         _dump_D3DEXECUTEBUFFERDESC(lpDesc);
 688     }
 689     return D3D_OK;
 690 }
 691
 692 /*****************************************************************************
 693  * IDirect3DExecuteBuffer::Unlock
 694  *
 695  * Unlocks the buffer. We don't have anything to do here
 696  *
 697  * Returns:
 698  *  This implementation always returns D3D_OK
 699  *
 700  *****************************************************************************/
 701 static HRESULT WINAPI IDirect3DExecuteBufferImpl_Unlock(IDirect3DExecuteBuffer *iface)
 702 {
 703     TRACE("iface %p.\n", iface);
 704
 705     return D3D_OK;
 706 }
 707
 708 /*****************************************************************************
 709  * IDirect3DExecuteBuffer::SetExecuteData
 710  *
 711  * Sets the execute data. This data is used to describe the buffer's content
 712  *
 713  * Params:
 714  *  Data: Pointer to a D3DEXECUTEDATA structure containing the data to
 715  *  assign
 716  *
 717  * Returns:
 718  *  D3D_OK on success
 719  *  DDERR_OUTOFMEMORY if the vertex buffer allocation failed
 720  *
 721  *****************************************************************************/
 722 static HRESULT WINAPI
 723 IDirect3DExecuteBufferImpl_SetExecuteData(IDirect3DExecuteBuffer *iface,
 724                                           D3DEXECUTEDATA *lpData)
 725 {
 726     IDirect3DExecuteBufferImpl *This = (IDirect3DExecuteBufferImpl *)iface;
 727     DWORD nbvert;
 728
 729     TRACE("iface %p, data %p.\n", iface, lpData);
 730
 731     memcpy(&This->data, lpData, lpData->dwSize);
 732
 733     /* Get the number of vertices in the execute buffer */
 734     nbvert = This->data.dwVertexCount;
 735
 736     /* Prepares the transformed vertex buffer */
 737     HeapFree(GetProcessHeap(), 0, This->vertex_data);
 738     This->vertex_data = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, nbvert * sizeof(D3DTLVERTEX));
 739
 740     if (TRACE_ON(ddraw))
 741         _dump_executedata(lpData);
 742
 743     return D3D_OK;
 744 }
 745
 746 /*****************************************************************************
 747  * IDirect3DExecuteBuffer::GetExecuteData
 748  *
 749  * Returns the data in the execute buffer
 750  *
 751  * Params:
 752  *  Data: Pointer to a D3DEXECUTEDATA structure used to return data
 753  *
 754  * Returns:
 755  *  D3D_OK on success
 756  *
 757  *****************************************************************************/
 758 static HRESULT WINAPI
 759 IDirect3DExecuteBufferImpl_GetExecuteData(IDirect3DExecuteBuffer *iface,
 760                                           D3DEXECUTEDATA *lpData)
 761 {
 762     IDirect3DExecuteBufferImpl *This = (IDirect3DExecuteBufferImpl *)iface;
 763     DWORD dwSize;
 764
 765     TRACE("iface %p, data %p.\n", iface, lpData);
 766
 767     dwSize = lpData->dwSize;
 768     memcpy(lpData, &This->data, dwSize);
 769
 770     if (TRACE_ON(ddraw))
 771     {
 772         TRACE("Returning data :\n");
 773         _dump_executedata(lpData);
 774     }
 775
 776     return DD_OK;
 777 }
 778
 779 /*****************************************************************************
 780  * IDirect3DExecuteBuffer::Validate
 781  *
 782  * DirectX 5 SDK: "The IDirect3DExecuteBuffer::Validate method is not
 783  * currently implemented"
 784  *
 785  * Params:
 786  *  ?
 787  *
 788  * Returns:
 789  *  DDERR_UNSUPPORTED, because it's not implemented in Windows.
 790  *
 791  *****************************************************************************/
 792 static HRESULT WINAPI IDirect3DExecuteBufferImpl_Validate(IDirect3DExecuteBuffer *iface,
 793         DWORD *offset, LPD3DVALIDATECALLBACK callback, void *context, DWORD reserved)
 794 {
 795     TRACE("iface %p, offset %p, callback %p, context %p, reserved %#x.\n",
 796             iface, offset, callback, context, reserved);
 797
 798     WARN("Not implemented.\n");
 799
 800     return DDERR_UNSUPPORTED; /* Unchecked */
 801 }
 802
 803 /*****************************************************************************
 804  * IDirect3DExecuteBuffer::Optimize
 805  *
 806  * DirectX5 SDK: "The IDirect3DExecuteBuffer::Optimize method is not
 807  * currently supported"
 808  *
 809  * Params:
 810  *  Dummy: Seems to be an unused dummy ;)
 811  *
 812  * Returns:
 813  *  DDERR_UNSUPPORTED, because it's not implemented in Windows.
 814  *
 815  *****************************************************************************/
 816 static HRESULT WINAPI IDirect3DExecuteBufferImpl_Optimize(IDirect3DExecuteBuffer *iface, DWORD reserved)
 817 {
 818     TRACE("iface %p, reserved %#x.\n", iface, reserved);
 819
 820     WARN("Not implemented.\n");
 821
 822     return DDERR_UNSUPPORTED; /* Unchecked */
 823 }
 824
 825 static const struct IDirect3DExecuteBufferVtbl d3d_execute_buffer_vtbl =
 826 {
 827     IDirect3DExecuteBufferImpl_QueryInterface,
 828     IDirect3DExecuteBufferImpl_AddRef,
 829     IDirect3DExecuteBufferImpl_Release,
 830     IDirect3DExecuteBufferImpl_Initialize,
 831     IDirect3DExecuteBufferImpl_Lock,
 832     IDirect3DExecuteBufferImpl_Unlock,
 833     IDirect3DExecuteBufferImpl_SetExecuteData,
 834     IDirect3DExecuteBufferImpl_GetExecuteData,
 835     IDirect3DExecuteBufferImpl_Validate,
 836     IDirect3DExecuteBufferImpl_Optimize,
 837 };
 838
 839 HRESULT d3d_execute_buffer_init(IDirect3DExecuteBufferImpl *execute_buffer,
 840         IDirect3DDeviceImpl *device, D3DEXECUTEBUFFERDESC *desc)
 841 {
 842     execute_buffer->lpVtbl = &d3d_execute_buffer_vtbl;
 843     execute_buffer->ref = 1;
 844     execute_buffer->d3ddev = device;
 845
 846     /* Initializes memory */
 847     memcpy(&execute_buffer->desc, desc, desc->dwSize);
 848
 849     /* No buffer given */
 850     if (!(execute_buffer->desc.dwFlags & D3DDEB_LPDATA))
 851         execute_buffer->desc.lpData = NULL;
 852
 853     /* No buffer size given */
 854     if (!(execute_buffer->desc.dwFlags & D3DDEB_BUFSIZE))
 855         execute_buffer->desc.dwBufferSize = 0;
 856
 857     /* Create buffer if asked */
 858     if (!execute_buffer->desc.lpData && execute_buffer->desc.dwBufferSize)
 859     {
 860         execute_buffer->need_free = TRUE;
 861         execute_buffer->desc.lpData = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, execute_buffer->desc.dwBufferSize);
 862         if (!execute_buffer->desc.lpData)
 863         {
 864             ERR("Failed to allocate execute buffer data.\n");
 865             return DDERR_OUTOFMEMORY;
 866         }
 867     }
 868
 869     execute_buffer->desc.dwFlags |= D3DDEB_LPDATA;
 870
 871     return D3D_OK;
 872 }