dlls/ddraw/vertexbuffer.c

   1 /* Direct3D Vertex Buffer
   2  * Copyright (c) 2002 Lionel ULMER
   3  * Copyright (c) 2006 Stefan DÖSINGER
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include "ddraw_private.h"
  21
  22 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
  23
  24 static inline struct d3d_vertex_buffer *impl_from_IDirect3DVertexBuffer7(IDirect3DVertexBuffer7 *iface)
  25 {
  26     return CONTAINING_RECORD(iface, struct d3d_vertex_buffer, IDirect3DVertexBuffer7_iface);
  27 }
  28
  29 /*****************************************************************************
  30  * IUnknown Methods
  31  *****************************************************************************/
  32
  33 static HRESULT WINAPI d3d_vertex_buffer7_QueryInterface(IDirect3DVertexBuffer7 *iface, REFIID riid, void  **obj)
  34 {
  35     struct d3d_vertex_buffer *buffer = impl_from_IDirect3DVertexBuffer7(iface);
  36
  37     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), obj);
  38
  39     *obj = NULL;
  40
  41     if (IsEqualGUID(&IID_IUnknown, riid))
  42     {
  43         IDirect3DVertexBuffer7_AddRef(iface);
  44         *obj = iface;
  45         return S_OK;
  46     }
  47     if (IsEqualGUID(&IID_IDirect3DVertexBuffer7, riid) && buffer->version == 7)
  48     {
  49         IDirect3DVertexBuffer7_AddRef(iface);
  50         *obj = iface;
  51         return S_OK;
  52     }
  53     if (IsEqualGUID(&IID_IDirect3DVertexBuffer, riid) && buffer->version == 3)
  54     {
  55         IDirect3DVertexBuffer7_AddRef(iface);
  56         *obj = iface;
  57         return S_OK;
  58     }
  59
  60     WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(riid));
  61     return E_NOINTERFACE;
  62 }
  63
  64 static ULONG WINAPI d3d_vertex_buffer7_AddRef(IDirect3DVertexBuffer7 *iface)
  65 {
  66     struct d3d_vertex_buffer *buffer = impl_from_IDirect3DVertexBuffer7(iface);
  67     ULONG ref = InterlockedIncrement(&buffer->ref);
  68
  69     TRACE("%p increasing refcount to %u.\n", buffer, ref);
  70
  71     return ref;
  72 }
  73
  74 static ULONG WINAPI d3d_vertex_buffer7_Release(IDirect3DVertexBuffer7 *iface)
  75 {
  76     struct d3d_vertex_buffer *buffer = impl_from_IDirect3DVertexBuffer7(iface);
  77     ULONG ref = InterlockedDecrement(&buffer->ref);
  78
  79     TRACE("%p decreasing refcount to %u.\n", buffer, ref);
  80
  81     if (!ref)
  82     {
  83         /* D3D7 vertex buffers don't stay bound in the device, they are passed
  84          * as a parameter to DrawPrimitiveVB. DrawPrimitiveVB sets them as the
  85          * stream source in wined3d and they should get unset there before
  86          * they are destroyed. */
  87         wined3d_mutex_lock();
  88         if (buffer->ddraw->stateblock_state->streams[0].buffer == buffer->wined3d_buffer)
  89             wined3d_stateblock_set_stream_source(buffer->ddraw->state, 0, NULL, 0, 0);
  90
  91         wined3d_vertex_declaration_decref(buffer->wined3d_declaration);
  92         wined3d_buffer_decref(buffer->wined3d_buffer);
  93         wined3d_mutex_unlock();
  94
  95         if (buffer->version == 7)
  96             IDirectDraw7_Release(&buffer->ddraw->IDirectDraw7_iface);
  97
  98         heap_free(buffer);
  99     }
 100
 101     return ref;
 102 }
 103
 104 /*****************************************************************************
 105  * IDirect3DVertexBuffer Methods
 106  *****************************************************************************/
 107
 108 static HRESULT d3d_vertex_buffer_create_wined3d_buffer(struct d3d_vertex_buffer *buffer, BOOL dynamic,
 109         struct wined3d_buffer **wined3d_buffer)
 110 {
 111     struct wined3d_buffer_desc desc;
 112
 113     desc.byte_width = buffer->size;
 114     desc.usage = WINED3DUSAGE_STATICDECL;
 115     if (dynamic)
 116         desc.usage |= WINED3DUSAGE_DYNAMIC;
 117     desc.bind_flags = WINED3D_BIND_VERTEX_BUFFER;
 118     if (buffer->Caps & D3DVBCAPS_SYSTEMMEMORY)
 119         desc.access = WINED3D_RESOURCE_ACCESS_CPU | WINED3D_RESOURCE_ACCESS_MAP_R | WINED3D_RESOURCE_ACCESS_MAP_W;
 120     else
 121         desc.access = WINED3D_RESOURCE_ACCESS_GPU | WINED3D_RESOURCE_ACCESS_MAP_R | WINED3D_RESOURCE_ACCESS_MAP_W;
 122     desc.misc_flags = 0;
 123     desc.structure_byte_stride = 0;
 124
 125     return wined3d_buffer_create(buffer->ddraw->wined3d_device, &desc,
 126             NULL, buffer, &ddraw_null_wined3d_parent_ops, wined3d_buffer);
 127 }
 128
 129 /*****************************************************************************
 130  * IDirect3DVertexBuffer7::Lock
 131  *
 132  * Locks the vertex buffer and returns a pointer to the vertex data
 133  * Locking vertex buffers is similar to locking surfaces, because Windows
 134  * uses surfaces to store vertex data internally (According to the DX sdk)
 135  *
 136  * Params:
 137  *  Flags: Locking flags. Relevant here are DDLOCK_READONLY, DDLOCK_WRITEONLY,
 138  *         DDLOCK_DISCARDCONTENTS and DDLOCK_NOOVERWRITE.
 139  *  Data:  Returns a pointer to the vertex data
 140  *  Size:  Returns the size of the buffer if not NULL
 141  *
 142  * Returns:
 143  *  D3D_OK on success
 144  *  DDERR_INVALIDPARAMS if Data is NULL
 145  *  D3DERR_VERTEXBUFFEROPTIMIZED if called on an optimized buffer(WineD3D)
 146  *
 147  *****************************************************************************/
 148 static HRESULT WINAPI d3d_vertex_buffer7_Lock(IDirect3DVertexBuffer7 *iface,
 149         DWORD flags, void **data, DWORD *data_size)
 150 {
 151     struct d3d_vertex_buffer *buffer = impl_from_IDirect3DVertexBuffer7(iface);
 152     struct wined3d_resource_desc wined3d_desc;
 153     struct wined3d_resource *wined3d_resource;
 154     struct wined3d_map_desc wined3d_map_desc;
 155     HRESULT hr;
 156
 157     TRACE("iface %p, flags %#x, data %p, data_size %p.\n", iface, flags, data, data_size);
 158
 159     if (buffer->version != 7)
 160         flags &= ~(DDLOCK_NOOVERWRITE | DDLOCK_DISCARDCONTENTS);
 161
 162     if (!(flags & DDLOCK_WAIT))
 163         flags |= DDLOCK_DONOTWAIT;
 164     if (flags & DDLOCK_DISCARDCONTENTS)
 165     {
 166         if (!buffer->dynamic)
 167         {
 168             struct wined3d_buffer *new_buffer;
 169             wined3d_mutex_lock();
 170             hr = d3d_vertex_buffer_create_wined3d_buffer(buffer, TRUE, &new_buffer);
 171             if (SUCCEEDED(hr))
 172             {
 173                 buffer->dynamic = TRUE;
 174                 wined3d_buffer_decref(buffer->wined3d_buffer);
 175                 buffer->wined3d_buffer = new_buffer;
 176             }
 177             else
 178             {
 179                 WARN("Failed to create a dynamic buffer\n");
 180             }
 181             wined3d_mutex_unlock();
 182         }
 183     }
 184
 185     wined3d_mutex_lock();
 186     if (data_size)
 187     {
 188         /* Get the size, for returning it, and for locking */
 189         wined3d_resource = wined3d_buffer_get_resource(buffer->wined3d_buffer);
 190         wined3d_resource_get_desc(wined3d_resource, &wined3d_desc);
 191         *data_size = wined3d_desc.size;
 192     }
 193
 194     hr = wined3d_resource_map(wined3d_buffer_get_resource(buffer->wined3d_buffer),
 195             0, &wined3d_map_desc, NULL, wined3dmapflags_from_ddrawmapflags(flags));
 196     *data = wined3d_map_desc.data;
 197
 198     wined3d_mutex_unlock();
 199
 200     return hr;
 201 }
 202
 203 /*****************************************************************************
 204  * IDirect3DVertexBuffer7::Unlock
 205  *
 206  * Unlocks a vertex Buffer
 207  *
 208  * Returns:
 209  *  D3D_OK on success
 210  *
 211  *****************************************************************************/
 212 static HRESULT WINAPI d3d_vertex_buffer7_Unlock(IDirect3DVertexBuffer7 *iface)
 213 {
 214     struct d3d_vertex_buffer *buffer = impl_from_IDirect3DVertexBuffer7(iface);
 215
 216     TRACE("iface %p.\n", iface);
 217
 218     wined3d_mutex_lock();
 219     wined3d_resource_unmap(wined3d_buffer_get_resource(buffer->wined3d_buffer), 0);
 220     wined3d_mutex_unlock();
 221
 222     return D3D_OK;
 223 }
 224
 225 /*****************************************************************************
 226  * IDirect3DVertexBuffer7::ProcessVertices
 227  *
 228  * Processes untransformed Vertices into a transformed or optimized vertex
 229  * buffer. It can also perform other operations, such as lighting or clipping
 230  *
 231  * Params
 232  *  VertexOp: Operation(s) to perform: D3DVOP_CLIP, _EXTENTS, _LIGHT, _TRANSFORM
 233  *  DestIndex: Index in the destination buffer(This), where the vertices are
 234  *             placed
 235  *  Count: Number of Vertices in the Source buffer to process
 236  *  SrcBuffer: Source vertex buffer
 237  *  SrcIndex: Index of the first vertex in the src buffer to process
 238  *  D3DDevice: Device to use for transformation
 239  *  Flags: 0 for default, D3DPV_DONOTCOPYDATA to prevent copying
 240  *         unchanged vertices
 241  *
 242  * Returns:
 243  *  D3D_OK on success
 244  *  DDERR_INVALIDPARAMS If D3DVOP_TRANSFORM wasn't passed
 245  *
 246  *****************************************************************************/
 247 static HRESULT WINAPI d3d_vertex_buffer7_ProcessVertices(IDirect3DVertexBuffer7 *iface,
 248         DWORD vertex_op, DWORD dst_idx, DWORD count, IDirect3DVertexBuffer7 *src_buffer,
 249         DWORD src_idx, IDirect3DDevice7 *device, DWORD flags)
 250 {
 251     struct d3d_vertex_buffer *dst_buffer_impl = impl_from_IDirect3DVertexBuffer7(iface);
 252     struct d3d_vertex_buffer *src_buffer_impl = unsafe_impl_from_IDirect3DVertexBuffer7(src_buffer);
 253     struct d3d_device *device_impl = dst_buffer_impl->version == 7
 254             ? unsafe_impl_from_IDirect3DDevice7(device)
 255             : unsafe_impl_from_IDirect3DDevice3((IDirect3DDevice3 *)device);
 256     BOOL old_clip, do_clip, old_lighting, do_lighting;
 257     const struct wined3d_stateblock_state *state;
 258     HRESULT hr;
 259
 260     TRACE("iface %p, vertex_op %#x, dst_idx %u, count %u, src_buffer %p, src_idx %u, device %p, flags %#x.\n",
 261             iface, vertex_op, dst_idx, count, src_buffer, src_idx, device, flags);
 262
 263     /* Vertex operations:
 264      * D3DVOP_CLIP: Clips vertices outside the viewing frustrum. Needs clipping information
 265      * in the vertex buffer (Buffer may not be created with D3DVBCAPS_DONOTCLIP)
 266      * D3DVOP_EXTENTS: Causes the screen extents to be updated when rendering the vertices
 267      * D3DVOP_LIGHT: Lights the vertices
 268      * D3DVOP_TRANSFORM: Transform the vertices. This flag is necessary
 269      *
 270      * WineD3D only transforms and clips the vertices by now, so EXTENTS and LIGHT
 271      * are not implemented. Clipping is disabled ATM, because of unsure conditions.
 272      */
 273     if (!(vertex_op & D3DVOP_TRANSFORM))
 274         return DDERR_INVALIDPARAMS;
 275
 276     wined3d_mutex_lock();
 277
 278     state = device_impl->stateblock_state;
 279
 280     /* WineD3D doesn't know d3d7 vertex operation, it uses
 281      * render states instead. Set the render states according to
 282      * the vertex ops
 283      */
 284     do_clip = !!(vertex_op & D3DVOP_CLIP);
 285     old_clip = !!state->rs[WINED3D_RS_CLIPPING];
 286     if (do_clip != old_clip)
 287         wined3d_stateblock_set_render_state(device_impl->state, WINED3D_RS_CLIPPING, do_clip);
 288
 289     old_lighting = !!state->rs[WINED3D_RS_LIGHTING];
 290     if (dst_buffer_impl->version == 3)
 291         do_lighting = device_impl->material && (src_buffer_impl->fvf & D3DFVF_NORMAL)
 292                 && (vertex_op & D3DVOP_LIGHT);
 293     else
 294         do_lighting = old_lighting && (vertex_op & D3DVOP_LIGHT);
 295
 296     if (do_lighting != old_lighting)
 297         wined3d_stateblock_set_render_state(device_impl->state, WINED3D_RS_LIGHTING, do_lighting);
 298
 299     wined3d_stateblock_set_stream_source(device_impl->state,
 300             0, src_buffer_impl->wined3d_buffer, 0, get_flexible_vertex_size(src_buffer_impl->fvf));
 301     wined3d_stateblock_set_vertex_declaration(device_impl->state, src_buffer_impl->wined3d_declaration);
 302     wined3d_device_apply_stateblock(device_impl->wined3d_device, device_impl->state);
 303     hr = wined3d_device_process_vertices(device_impl->wined3d_device, src_idx, dst_idx,
 304             count, dst_buffer_impl->wined3d_buffer, NULL, flags, dst_buffer_impl->fvf);
 305
 306     /* Restore the states if needed */
 307     if (do_clip != old_clip)
 308         wined3d_stateblock_set_render_state(device_impl->state, WINED3D_RS_CLIPPING, old_clip);
 309     if (do_lighting != old_lighting)
 310         wined3d_stateblock_set_render_state(device_impl->state, WINED3D_RS_LIGHTING, old_lighting);
 311
 312     wined3d_mutex_unlock();
 313
 314     return hr;
 315 }
 316
 317 /*****************************************************************************
 318  * IDirect3DVertexBuffer7::GetVertexBufferDesc
 319  *
 320  * Returns the description of a vertex buffer
 321  *
 322  * Params:
 323  *  Desc: Address to write the description to
 324  *
 325  * Returns
 326  *  DDERR_INVALIDPARAMS if Desc is NULL
 327  *  D3D_OK on success
 328  *
 329  *****************************************************************************/
 330 static HRESULT WINAPI d3d_vertex_buffer7_GetVertexBufferDesc(IDirect3DVertexBuffer7 *iface, D3DVERTEXBUFFERDESC *desc)
 331 {
 332     struct d3d_vertex_buffer *buffer = impl_from_IDirect3DVertexBuffer7(iface);
 333     struct wined3d_resource_desc wined3d_desc;
 334     struct wined3d_resource *wined3d_resource;
 335
 336     TRACE("iface %p, desc %p.\n", iface, desc);
 337
 338     if (!desc) return DDERR_INVALIDPARAMS;
 339
 340     wined3d_mutex_lock();
 341     wined3d_resource = wined3d_buffer_get_resource(buffer->wined3d_buffer);
 342     wined3d_resource_get_desc(wined3d_resource, &wined3d_desc);
 343     wined3d_mutex_unlock();
 344
 345     /* Now fill the desc structure */
 346     desc->dwCaps = buffer->Caps;
 347     desc->dwFVF = buffer->fvf;
 348     desc->dwNumVertices = wined3d_desc.size / get_flexible_vertex_size(buffer->fvf);
 349
 350     return D3D_OK;
 351 }
 352
 353 /*****************************************************************************
 354  * IDirect3DVertexBuffer7::Optimize
 355  *
 356  * Converts an unoptimized vertex buffer into an optimized buffer
 357  *
 358  * Params:
 359  *  D3DDevice: Device for which this buffer is optimized
 360  *  Flags: Not used, should be set to 0
 361  *
 362  * Returns
 363  *  D3D_OK, because it's a stub
 364  *
 365  *****************************************************************************/
 366 static HRESULT WINAPI d3d_vertex_buffer7_Optimize(IDirect3DVertexBuffer7 *iface,
 367         IDirect3DDevice7 *device, DWORD flags)
 368 {
 369     struct d3d_vertex_buffer *buffer = impl_from_IDirect3DVertexBuffer7(iface);
 370     static BOOL hide = FALSE;
 371
 372     TRACE("iface %p, device %p, flags %#x.\n", iface, device, flags);
 373
 374     if (!hide)
 375     {
 376         FIXME("iface %p, device %p, flags %#x stub!\n", iface, device, flags);
 377         hide = TRUE;
 378     }
 379
 380     /* We could forward this call to WineD3D and take advantage
 381      * of it once we use OpenGL vertex buffers
 382      */
 383     wined3d_mutex_lock();
 384     buffer->Caps |= D3DVBCAPS_OPTIMIZED;
 385     wined3d_mutex_unlock();
 386
 387     return DD_OK;
 388 }
 389
 390 /*****************************************************************************
 391  * IDirect3DVertexBuffer7::ProcessVerticesStrided
 392  *
 393  * This method processes untransformed strided vertices into a processed
 394  * or optimized vertex buffer.
 395  *
 396  * For more details on the parameters, see
 397  * IDirect3DVertexBuffer7::ProcessVertices
 398  *
 399  * Params:
 400  *  VertexOp: Operations to perform
 401  *  DestIndex: Destination index to write the vertices to
 402  *  Count: Number of input vertices
 403  *  StrideData: Array containing the input vertices
 404  *  VertexTypeDesc: Vertex Description or source index?????????
 405  *  D3DDevice: IDirect3DDevice7 to use for processing
 406  *  Flags: Can be D3DPV_DONOTCOPYDATA to avoid copying unmodified vertices
 407  *
 408  * Returns
 409  *  D3D_OK on success, or DDERR_*
 410  *
 411  *****************************************************************************/
 412 static HRESULT WINAPI d3d_vertex_buffer7_ProcessVerticesStrided(IDirect3DVertexBuffer7 *iface,
 413         DWORD vertex_op, DWORD dst_idx, DWORD count, D3DDRAWPRIMITIVESTRIDEDDATA *data,
 414         DWORD fvf, IDirect3DDevice7 *device, DWORD flags)
 415 {
 416     FIXME("iface %p, vertex_op %#x, dst_idx %u, count %u, data %p, fvf %#x, device %p, flags %#x stub!\n",
 417             iface, vertex_op, dst_idx, count, data, fvf, device, flags);
 418
 419     return DD_OK;
 420 }
 421
 422 /*****************************************************************************
 423  * The VTables
 424  *****************************************************************************/
 425
 426 static const struct IDirect3DVertexBuffer7Vtbl d3d_vertex_buffer7_vtbl =
 427 {
 428     d3d_vertex_buffer7_QueryInterface,
 429     d3d_vertex_buffer7_AddRef,
 430     d3d_vertex_buffer7_Release,
 431     d3d_vertex_buffer7_Lock,
 432     d3d_vertex_buffer7_Unlock,
 433     d3d_vertex_buffer7_ProcessVertices,
 434     d3d_vertex_buffer7_GetVertexBufferDesc,
 435     d3d_vertex_buffer7_Optimize,
 436     d3d_vertex_buffer7_ProcessVerticesStrided,
 437 };
 438
 439 HRESULT d3d_vertex_buffer_create(struct d3d_vertex_buffer **vertex_buf,
 440         struct ddraw *ddraw, D3DVERTEXBUFFERDESC *desc)
 441 {
 442     struct d3d_vertex_buffer *buffer;
 443     HRESULT hr = D3D_OK;
 444
 445     TRACE("Vertex buffer description:\n");
 446     TRACE("    dwSize %u\n", desc->dwSize);
 447     TRACE("    dwCaps %#x\n", desc->dwCaps);
 448     TRACE("    FVF %#x\n", desc->dwFVF);
 449     TRACE("    dwNumVertices %u\n", desc->dwNumVertices);
 450
 451     if (!(buffer = heap_alloc_zero(sizeof(*buffer))))
 452         return DDERR_OUTOFMEMORY;
 453
 454     buffer->IDirect3DVertexBuffer7_iface.lpVtbl = &d3d_vertex_buffer7_vtbl;
 455     buffer->ref = 1;
 456     buffer->version = ddraw->d3dversion;
 457     if (buffer->version == 7)
 458         IDirectDraw7_AddRef(&ddraw->IDirectDraw7_iface);
 459     buffer->ddraw = ddraw;
 460     buffer->Caps = desc->dwCaps;
 461     buffer->fvf = desc->dwFVF;
 462     buffer->size = get_flexible_vertex_size(desc->dwFVF) * desc->dwNumVertices;
 463
 464     wined3d_mutex_lock();
 465
 466     if (FAILED(hr = d3d_vertex_buffer_create_wined3d_buffer(buffer, FALSE, &buffer->wined3d_buffer)))
 467     {
 468         WARN("Failed to create wined3d vertex buffer, hr %#x.\n", hr);
 469         if (hr == WINED3DERR_INVALIDCALL)
 470             hr = DDERR_INVALIDPARAMS;
 471         goto end;
 472     }
 473
 474     if (!(buffer->wined3d_declaration = ddraw_find_decl(ddraw, desc->dwFVF)))
 475     {
 476         ERR("Failed to find vertex declaration for fvf %#x.\n", desc->dwFVF);
 477         wined3d_buffer_decref(buffer->wined3d_buffer);
 478         hr = DDERR_INVALIDPARAMS;
 479         goto end;
 480     }
 481     wined3d_vertex_declaration_incref(buffer->wined3d_declaration);
 482
 483 end:
 484     wined3d_mutex_unlock();
 485     if (hr == D3D_OK)
 486         *vertex_buf = buffer;
 487     else
 488         heap_free(buffer);
 489
 490     return hr;
 491 }
 492
 493 struct d3d_vertex_buffer *unsafe_impl_from_IDirect3DVertexBuffer7(IDirect3DVertexBuffer7 *iface)
 494 {
 495     if (!iface)
 496         return NULL;
 497     assert(iface->lpVtbl == &d3d_vertex_buffer7_vtbl);
 498
 499     return impl_from_IDirect3DVertexBuffer7(iface);
 500 }