dlls/wined3d/vertexdeclaration.c

   1 /*
   2  * vertex declaration implementation
   3  *
   4  * Copyright 2002-2005 Raphael Junqueira
   5  * Copyright 2004 Jason Edmeades
   6  * Copyright 2004 Christian Costa
   7  * Copyright 2005 Oliver Stieber
   8  * Copyright 2009 Henri Verbeet for CodeWeavers
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  */
  24
  25 #include "config.h"
  26 #include "wined3d_private.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(d3d_decl);
  29
  30 static void dump_wined3d_vertex_element(const struct wined3d_vertex_element *element)
  31 {
  32     TRACE("     format: %s (%#x)\n", debug_d3dformat(element->format), element->format);
  33     TRACE(" input_slot: %u\n", element->input_slot);
  34     TRACE("     offset: %u\n", element->offset);
  35     TRACE("output_slot: %u\n", element->output_slot);
  36     TRACE("     method: %s (%#x)\n", debug_d3ddeclmethod(element->method), element->method);
  37     TRACE("      usage: %s (%#x)\n", debug_d3ddeclusage(element->usage), element->usage);
  38     TRACE("  usage_idx: %u\n", element->usage_idx);
  39 }
  40
  41 ULONG CDECL wined3d_vertex_declaration_incref(struct wined3d_vertex_declaration *declaration)
  42 {
  43     ULONG refcount = InterlockedIncrement(&declaration->ref);
  44
  45     TRACE("%p increasing refcount to %u.\n", declaration, refcount);
  46
  47     return refcount;
  48 }
  49
  50 ULONG CDECL wined3d_vertex_declaration_decref(struct wined3d_vertex_declaration *declaration)
  51 {
  52     ULONG refcount = InterlockedDecrement(&declaration->ref);
  53
  54     TRACE("%p decreasing refcount to %u.\n", declaration, refcount);
  55
  56     if (!refcount)
  57     {
  58         HeapFree(GetProcessHeap(), 0, declaration->elements);
  59         declaration->parent_ops->wined3d_object_destroyed(declaration->parent);
  60         HeapFree(GetProcessHeap(), 0, declaration);
  61     }
  62
  63     return refcount;
  64 }
  65
  66 void * CDECL wined3d_vertex_declaration_get_parent(const struct wined3d_vertex_declaration *declaration)
  67 {
  68     TRACE("declaration %p.\n", declaration);
  69
  70     return declaration->parent;
  71 }
  72
  73 static BOOL declaration_element_valid_ffp(const struct wined3d_vertex_element *element)
  74 {
  75     switch(element->usage)
  76     {
  77         case WINED3D_DECL_USAGE_POSITION:
  78         case WINED3D_DECL_USAGE_POSITIONT:
  79             switch(element->format)
  80             {
  81                 case WINED3DFMT_R32G32_FLOAT:
  82                 case WINED3DFMT_R32G32B32_FLOAT:
  83                 case WINED3DFMT_R32G32B32A32_FLOAT:
  84                 case WINED3DFMT_R16G16_SINT:
  85                 case WINED3DFMT_R16G16B16A16_SINT:
  86                 case WINED3DFMT_R16G16_FLOAT:
  87                 case WINED3DFMT_R16G16B16A16_FLOAT:
  88                     return TRUE;
  89                 default:
  90                     return FALSE;
  91             }
  92
  93         case WINED3D_DECL_USAGE_BLEND_WEIGHT:
  94             switch(element->format)
  95             {
  96                 case WINED3DFMT_R32_FLOAT:
  97                 case WINED3DFMT_R32G32_FLOAT:
  98                 case WINED3DFMT_R32G32B32_FLOAT:
  99                 case WINED3DFMT_R32G32B32A32_FLOAT:
 100                 case WINED3DFMT_B8G8R8A8_UNORM:
 101                 case WINED3DFMT_R8G8B8A8_UINT:
 102                 case WINED3DFMT_R16G16_SINT:
 103                 case WINED3DFMT_R16G16B16A16_SINT:
 104                 case WINED3DFMT_R16G16_FLOAT:
 105                 case WINED3DFMT_R16G16B16A16_FLOAT:
 106                     return TRUE;
 107                 default:
 108                     return FALSE;
 109             }
 110
 111         case WINED3D_DECL_USAGE_NORMAL:
 112             switch(element->format)
 113             {
 114                 case WINED3DFMT_R32G32B32_FLOAT:
 115                 case WINED3DFMT_R32G32B32A32_FLOAT:
 116                 case WINED3DFMT_R16G16B16A16_SINT:
 117                 case WINED3DFMT_R16G16B16A16_FLOAT:
 118                     return TRUE;
 119                 default:
 120                     return FALSE;
 121             }
 122
 123         case WINED3D_DECL_USAGE_TEXCOORD:
 124             switch(element->format)
 125             {
 126                 case WINED3DFMT_R32_FLOAT:
 127                 case WINED3DFMT_R32G32_FLOAT:
 128                 case WINED3DFMT_R32G32B32_FLOAT:
 129                 case WINED3DFMT_R32G32B32A32_FLOAT:
 130                 case WINED3DFMT_R16G16_SINT:
 131                 case WINED3DFMT_R16G16B16A16_SINT:
 132                 case WINED3DFMT_R16G16_FLOAT:
 133                 case WINED3DFMT_R16G16B16A16_FLOAT:
 134                     return TRUE;
 135                 default:
 136                     return FALSE;
 137             }
 138
 139         case WINED3D_DECL_USAGE_COLOR:
 140             switch(element->format)
 141             {
 142                 case WINED3DFMT_R32G32B32_FLOAT:
 143                 case WINED3DFMT_R32G32B32A32_FLOAT:
 144                 case WINED3DFMT_B8G8R8A8_UNORM:
 145                 case WINED3DFMT_R8G8B8A8_UINT:
 146                 case WINED3DFMT_R16G16B16A16_SINT:
 147                 case WINED3DFMT_R8G8B8A8_UNORM:
 148                 case WINED3DFMT_R16G16B16A16_SNORM:
 149                 case WINED3DFMT_R16G16B16A16_UNORM:
 150                 case WINED3DFMT_R16G16B16A16_FLOAT:
 151                     return TRUE;
 152                 default:
 153                     return FALSE;
 154             }
 155
 156         default:
 157             return FALSE;
 158     }
 159 }
 160
 161 static HRESULT vertexdeclaration_init(struct wined3d_vertex_declaration *declaration,
 162         struct wined3d_device *device, const struct wined3d_vertex_element *elements, UINT element_count,
 163         void *parent, const struct wined3d_parent_ops *parent_ops)
 164 {
 165     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
 166     WORD preloaded = 0; /* MAX_STREAMS, 16 */
 167     unsigned int i;
 168
 169     if (TRACE_ON(d3d_decl))
 170     {
 171         for (i = 0; i < element_count; ++i)
 172         {
 173             dump_wined3d_vertex_element(elements + i);
 174         }
 175     }
 176
 177     declaration->ref = 1;
 178     declaration->parent = parent;
 179     declaration->parent_ops = parent_ops;
 180     declaration->device = device;
 181     declaration->elements = HeapAlloc(GetProcessHeap(), 0, sizeof(*declaration->elements) * element_count);
 182     if (!declaration->elements)
 183     {
 184         ERR("Failed to allocate elements memory.\n");
 185         return E_OUTOFMEMORY;
 186     }
 187     declaration->element_count = element_count;
 188
 189     /* Do some static analysis on the elements to make reading the
 190      * declaration more comfortable for the drawing code. */
 191     for (i = 0; i < element_count; ++i)
 192     {
 193         struct wined3d_vertex_declaration_element *e = &declaration->elements[i];
 194
 195         e->format = wined3d_get_format(gl_info, elements[i].format);
 196         e->ffp_valid = declaration_element_valid_ffp(&elements[i]);
 197         e->input_slot = elements[i].input_slot;
 198         e->offset = elements[i].offset;
 199         e->output_slot = elements[i].output_slot;
 200         e->method = elements[i].method;
 201         e->usage = elements[i].usage;
 202         e->usage_idx = elements[i].usage_idx;
 203
 204         if (e->usage == WINED3D_DECL_USAGE_POSITIONT)
 205             declaration->position_transformed = TRUE;
 206
 207         /* Find the streams used in the declaration. The vertex buffers have
 208          * to be loaded when drawing, but filter tesselation pseudo streams. */
 209         if (e->input_slot >= MAX_STREAMS) continue;
 210
 211         if (!e->format->gl_vtx_format)
 212         {
 213             FIXME("The application tries to use an unsupported format (%s), returning E_FAIL.\n",
 214                     debug_d3dformat(elements[i].format));
 215             HeapFree(GetProcessHeap(), 0, declaration->elements);
 216             return E_FAIL;
 217         }
 218
 219         if (e->offset & 0x3)
 220         {
 221             WARN("Declaration element %u is not 4 byte aligned(%u), returning E_FAIL.\n", i, e->offset);
 222             HeapFree(GetProcessHeap(), 0, declaration->elements);
 223             return E_FAIL;
 224         }
 225
 226         if (!(preloaded & (1 << e->input_slot)))
 227         {
 228             declaration->streams[declaration->num_streams] = e->input_slot;
 229             ++declaration->num_streams;
 230             preloaded |= 1 << e->input_slot;
 231         }
 232
 233         if (elements[i].format == WINED3DFMT_R16G16_FLOAT || elements[i].format == WINED3DFMT_R16G16B16A16_FLOAT)
 234         {
 235             if (!gl_info->supported[ARB_HALF_FLOAT_VERTEX]) declaration->half_float_conv_needed = TRUE;
 236         }
 237     }
 238
 239     return WINED3D_OK;
 240 }
 241
 242 HRESULT CDECL wined3d_vertex_declaration_create(struct wined3d_device *device,
 243         const struct wined3d_vertex_element *elements, UINT element_count, void *parent,
 244         const struct wined3d_parent_ops *parent_ops, struct wined3d_vertex_declaration **declaration)
 245 {
 246     struct wined3d_vertex_declaration *object;
 247     HRESULT hr;
 248
 249     TRACE("device %p, elements %p, element_count %u, parent %p, parent_ops %p, declaration %p.\n",
 250             device, elements, element_count, parent, parent_ops, declaration);
 251
 252     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
 253     if(!object)
 254     {
 255         ERR("Failed to allocate vertex declaration memory.\n");
 256         return E_OUTOFMEMORY;
 257     }
 258
 259     hr = vertexdeclaration_init(object, device, elements, element_count, parent, parent_ops);
 260     if (FAILED(hr))
 261     {
 262         WARN("Failed to initialize vertex declaration, hr %#x.\n", hr);
 263         HeapFree(GetProcessHeap(), 0, object);
 264         return hr;
 265     }
 266
 267     TRACE("Created vertex declaration %p.\n", object);
 268     *declaration = object;
 269
 270     return WINED3D_OK;
 271 }
 272
 273 struct wined3d_fvf_convert_state
 274 {
 275     const struct wined3d_gl_info *gl_info;
 276     struct wined3d_vertex_element *elements;
 277     UINT offset;
 278     UINT idx;
 279 };
 280
 281 static void append_decl_element(struct wined3d_fvf_convert_state *state,
 282         enum wined3d_format_id format_id, enum wined3d_decl_usage usage, UINT usage_idx)
 283 {
 284     struct wined3d_vertex_element *elements = state->elements;
 285     const struct wined3d_format *format;
 286     UINT offset = state->offset;
 287     UINT idx = state->idx;
 288
 289     elements[idx].format = format_id;
 290     elements[idx].input_slot = 0;
 291     elements[idx].offset = offset;
 292     elements[idx].output_slot = 0;
 293     elements[idx].method = WINED3D_DECL_METHOD_DEFAULT;
 294     elements[idx].usage = usage;
 295     elements[idx].usage_idx = usage_idx;
 296
 297     format = wined3d_get_format(state->gl_info, format_id);
 298     state->offset += format->component_count * format->component_size;
 299     ++state->idx;
 300 }
 301
 302 static unsigned int convert_fvf_to_declaration(const struct wined3d_gl_info *gl_info,
 303         DWORD fvf, struct wined3d_vertex_element **elements)
 304 {
 305     BOOL has_pos = !!(fvf & WINED3DFVF_POSITION_MASK);
 306     BOOL has_blend = (fvf & WINED3DFVF_XYZB5) > WINED3DFVF_XYZRHW;
 307     BOOL has_blend_idx = has_blend &&
 308        (((fvf & WINED3DFVF_XYZB5) == WINED3DFVF_XYZB5) ||
 309         (fvf & WINED3DFVF_LASTBETA_D3DCOLOR) ||
 310         (fvf & WINED3DFVF_LASTBETA_UBYTE4));
 311     BOOL has_normal = !!(fvf & WINED3DFVF_NORMAL);
 312     BOOL has_psize = !!(fvf & WINED3DFVF_PSIZE);
 313     BOOL has_diffuse = !!(fvf & WINED3DFVF_DIFFUSE);
 314     BOOL has_specular = !!(fvf & WINED3DFVF_SPECULAR);
 315
 316     DWORD num_textures = (fvf & WINED3DFVF_TEXCOUNT_MASK) >> WINED3DFVF_TEXCOUNT_SHIFT;
 317     DWORD texcoords = (fvf & 0xFFFF0000) >> 16;
 318     struct wined3d_fvf_convert_state state;
 319     unsigned int size;
 320     unsigned int idx;
 321     DWORD num_blends = 1 + (((fvf & WINED3DFVF_XYZB5) - WINED3DFVF_XYZB1) >> 1);
 322     if (has_blend_idx) num_blends--;
 323
 324     /* Compute declaration size */
 325     size = has_pos + (has_blend && num_blends > 0) + has_blend_idx + has_normal +
 326            has_psize + has_diffuse + has_specular + num_textures;
 327
 328     state.gl_info = gl_info;
 329     state.elements = HeapAlloc(GetProcessHeap(), 0, size * sizeof(*state.elements));
 330     if (!state.elements) return ~0U;
 331     state.offset = 0;
 332     state.idx = 0;
 333
 334     if (has_pos)
 335     {
 336         if (!has_blend && (fvf & WINED3DFVF_XYZRHW))
 337             append_decl_element(&state, WINED3DFMT_R32G32B32A32_FLOAT, WINED3D_DECL_USAGE_POSITIONT, 0);
 338         else if ((fvf & WINED3DFVF_XYZW) == WINED3DFVF_XYZW)
 339             append_decl_element(&state, WINED3DFMT_R32G32B32A32_FLOAT, WINED3D_DECL_USAGE_POSITION, 0);
 340         else
 341             append_decl_element(&state, WINED3DFMT_R32G32B32_FLOAT, WINED3D_DECL_USAGE_POSITION, 0);
 342     }
 343
 344     if (has_blend && (num_blends > 0))
 345     {
 346         if ((fvf & WINED3DFVF_XYZB5) == WINED3DFVF_XYZB2 && (fvf & WINED3DFVF_LASTBETA_D3DCOLOR))
 347             append_decl_element(&state, WINED3DFMT_B8G8R8A8_UNORM, WINED3D_DECL_USAGE_BLEND_WEIGHT, 0);
 348         else
 349         {
 350             switch (num_blends)
 351             {
 352                 case 1:
 353                     append_decl_element(&state, WINED3DFMT_R32_FLOAT, WINED3D_DECL_USAGE_BLEND_WEIGHT, 0);
 354                     break;
 355                 case 2:
 356                     append_decl_element(&state, WINED3DFMT_R32G32_FLOAT, WINED3D_DECL_USAGE_BLEND_WEIGHT, 0);
 357                     break;
 358                 case 3:
 359                     append_decl_element(&state, WINED3DFMT_R32G32B32_FLOAT, WINED3D_DECL_USAGE_BLEND_WEIGHT, 0);
 360                     break;
 361                 case 4:
 362                     append_decl_element(&state, WINED3DFMT_R32G32B32A32_FLOAT, WINED3D_DECL_USAGE_BLEND_WEIGHT, 0);
 363                     break;
 364                 default:
 365                     ERR("Unexpected amount of blend values: %u\n", num_blends);
 366             }
 367         }
 368     }
 369
 370     if (has_blend_idx)
 371     {
 372         if ((fvf & WINED3DFVF_LASTBETA_UBYTE4)
 373                 || ((fvf & WINED3DFVF_XYZB5) == WINED3DFVF_XYZB2 && (fvf & WINED3DFVF_LASTBETA_D3DCOLOR)))
 374             append_decl_element(&state, WINED3DFMT_R8G8B8A8_UINT, WINED3D_DECL_USAGE_BLEND_INDICES, 0);
 375         else if (fvf & WINED3DFVF_LASTBETA_D3DCOLOR)
 376             append_decl_element(&state, WINED3DFMT_B8G8R8A8_UNORM, WINED3D_DECL_USAGE_BLEND_INDICES, 0);
 377         else
 378             append_decl_element(&state, WINED3DFMT_R32_FLOAT, WINED3D_DECL_USAGE_BLEND_INDICES, 0);
 379     }
 380
 381     if (has_normal)
 382         append_decl_element(&state, WINED3DFMT_R32G32B32_FLOAT, WINED3D_DECL_USAGE_NORMAL, 0);
 383     if (has_psize)
 384         append_decl_element(&state, WINED3DFMT_R32_FLOAT, WINED3D_DECL_USAGE_PSIZE, 0);
 385     if (has_diffuse)
 386         append_decl_element(&state, WINED3DFMT_B8G8R8A8_UNORM, WINED3D_DECL_USAGE_COLOR, 0);
 387     if (has_specular)
 388         append_decl_element(&state, WINED3DFMT_B8G8R8A8_UNORM, WINED3D_DECL_USAGE_COLOR, 1);
 389
 390     for (idx = 0; idx < num_textures; ++idx)
 391     {
 392         switch ((texcoords >> (idx * 2)) & 0x03)
 393         {
 394             case WINED3DFVF_TEXTUREFORMAT1:
 395                 append_decl_element(&state, WINED3DFMT_R32_FLOAT, WINED3D_DECL_USAGE_TEXCOORD, idx);
 396                 break;
 397             case WINED3DFVF_TEXTUREFORMAT2:
 398                 append_decl_element(&state, WINED3DFMT_R32G32_FLOAT, WINED3D_DECL_USAGE_TEXCOORD, idx);
 399                 break;
 400             case WINED3DFVF_TEXTUREFORMAT3:
 401                 append_decl_element(&state, WINED3DFMT_R32G32B32_FLOAT, WINED3D_DECL_USAGE_TEXCOORD, idx);
 402                 break;
 403             case WINED3DFVF_TEXTUREFORMAT4:
 404                 append_decl_element(&state, WINED3DFMT_R32G32B32A32_FLOAT, WINED3D_DECL_USAGE_TEXCOORD, idx);
 405                 break;
 406         }
 407     }
 408
 409     *elements = state.elements;
 410     return size;
 411 }
 412
 413 HRESULT CDECL wined3d_vertex_declaration_create_from_fvf(struct wined3d_device *device,
 414         DWORD fvf, void *parent, const struct wined3d_parent_ops *parent_ops,
 415         struct wined3d_vertex_declaration **declaration)
 416 {
 417     struct wined3d_vertex_element *elements;
 418     unsigned int size;
 419     DWORD hr;
 420
 421     TRACE("device %p, fvf %#x, parent %p, parent_ops %p, declaration %p.\n",
 422             device, fvf, parent, parent_ops, declaration);
 423
 424     size = convert_fvf_to_declaration(&device->adapter->gl_info, fvf, &elements);
 425     if (size == ~0U) return E_OUTOFMEMORY;
 426
 427     hr = wined3d_vertex_declaration_create(device, elements, size, parent, parent_ops, declaration);
 428     HeapFree(GetProcessHeap(), 0, elements);
 429     return hr;
 430 }