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_wined3dvertexelement(const WINED3DVERTEXELEMENT *element) {
  31     TRACE("     format: %s (%#x)\n", debug_d3dformat(element->format), element->format);
  32     TRACE(" input_slot: %u\n", element->input_slot);
  33     TRACE("     offset: %u\n", element->offset);
  34     TRACE("output_slot: %u\n", element->output_slot);
  35     TRACE("     method: %s (%#x)\n", debug_d3ddeclmethod(element->method), element->method);
  36     TRACE("      usage: %s (%#x)\n", debug_d3ddeclusage(element->usage), element->usage);
  37     TRACE("  usage_idx: %u\n", element->usage_idx);
  38 }
  39
  40 ULONG CDECL wined3d_vertex_declaration_incref(struct wined3d_vertex_declaration *declaration)
  41 {
  42     ULONG refcount = InterlockedIncrement(&declaration->ref);
  43
  44     TRACE("%p increasing refcount to %u.\n", declaration, refcount);
  45
  46     return refcount;
  47 }
  48
  49 ULONG CDECL wined3d_vertex_declaration_decref(struct wined3d_vertex_declaration *declaration)
  50 {
  51     ULONG refcount = InterlockedDecrement(&declaration->ref);
  52
  53     TRACE("%p decreasing refcount to %u.\n", declaration, refcount);
  54
  55     if (!refcount)
  56     {
  57         HeapFree(GetProcessHeap(), 0, declaration->elements);
  58         declaration->parent_ops->wined3d_object_destroyed(declaration->parent);
  59         HeapFree(GetProcessHeap(), 0, declaration);
  60     }
  61
  62     return refcount;
  63 }
  64
  65 void * CDECL wined3d_vertex_declaration_get_parent(const struct wined3d_vertex_declaration *declaration)
  66 {
  67     TRACE("declaration %p.\n", declaration);
  68
  69     return declaration->parent;
  70 }
  71
  72 static BOOL declaration_element_valid_ffp(const WINED3DVERTEXELEMENT *element)
  73 {
  74     switch(element->usage)
  75     {
  76         case WINED3DDECLUSAGE_POSITION:
  77         case WINED3DDECLUSAGE_POSITIONT:
  78             switch(element->format)
  79             {
  80                 case WINED3DFMT_R32G32_FLOAT:
  81                 case WINED3DFMT_R32G32B32_FLOAT:
  82                 case WINED3DFMT_R32G32B32A32_FLOAT:
  83                 case WINED3DFMT_R16G16_SINT:
  84                 case WINED3DFMT_R16G16B16A16_SINT:
  85                 case WINED3DFMT_R16G16_FLOAT:
  86                 case WINED3DFMT_R16G16B16A16_FLOAT:
  87                     return TRUE;
  88                 default:
  89                     return FALSE;
  90             }
  91
  92         case WINED3DDECLUSAGE_BLENDWEIGHT:
  93             switch(element->format)
  94             {
  95                 case WINED3DFMT_R32_FLOAT:
  96                 case WINED3DFMT_R32G32_FLOAT:
  97                 case WINED3DFMT_R32G32B32_FLOAT:
  98                 case WINED3DFMT_R32G32B32A32_FLOAT:
  99                 case WINED3DFMT_B8G8R8A8_UNORM:
 100                 case WINED3DFMT_R8G8B8A8_UINT:
 101                 case WINED3DFMT_R16G16_SINT:
 102                 case WINED3DFMT_R16G16B16A16_SINT:
 103                 case WINED3DFMT_R16G16_FLOAT:
 104                 case WINED3DFMT_R16G16B16A16_FLOAT:
 105                     return TRUE;
 106                 default:
 107                     return FALSE;
 108             }
 109
 110         case WINED3DDECLUSAGE_NORMAL:
 111             switch(element->format)
 112             {
 113                 case WINED3DFMT_R32G32B32_FLOAT:
 114                 case WINED3DFMT_R32G32B32A32_FLOAT:
 115                 case WINED3DFMT_R16G16B16A16_SINT:
 116                 case WINED3DFMT_R16G16B16A16_FLOAT:
 117                     return TRUE;
 118                 default:
 119                     return FALSE;
 120             }
 121
 122         case WINED3DDECLUSAGE_TEXCOORD:
 123             switch(element->format)
 124             {
 125                 case WINED3DFMT_R32_FLOAT:
 126                 case WINED3DFMT_R32G32_FLOAT:
 127                 case WINED3DFMT_R32G32B32_FLOAT:
 128                 case WINED3DFMT_R32G32B32A32_FLOAT:
 129                 case WINED3DFMT_R16G16_SINT:
 130                 case WINED3DFMT_R16G16B16A16_SINT:
 131                 case WINED3DFMT_R16G16_FLOAT:
 132                 case WINED3DFMT_R16G16B16A16_FLOAT:
 133                     return TRUE;
 134                 default:
 135                     return FALSE;
 136             }
 137
 138         case WINED3DDECLUSAGE_COLOR:
 139             switch(element->format)
 140             {
 141                 case WINED3DFMT_R32G32B32_FLOAT:
 142                 case WINED3DFMT_R32G32B32A32_FLOAT:
 143                 case WINED3DFMT_B8G8R8A8_UNORM:
 144                 case WINED3DFMT_R8G8B8A8_UINT:
 145                 case WINED3DFMT_R16G16B16A16_SINT:
 146                 case WINED3DFMT_R8G8B8A8_UNORM:
 147                 case WINED3DFMT_R16G16B16A16_SNORM:
 148                 case WINED3DFMT_R16G16B16A16_UNORM:
 149                 case WINED3DFMT_R16G16B16A16_FLOAT:
 150                     return TRUE;
 151                 default:
 152                     return FALSE;
 153             }
 154
 155         default:
 156             return FALSE;
 157     }
 158 }
 159
 160 HRESULT vertexdeclaration_init(struct wined3d_vertex_declaration *declaration, IWineD3DDeviceImpl *device,
 161         const WINED3DVERTEXELEMENT *elements, UINT element_count,
 162         void *parent, const struct wined3d_parent_ops *parent_ops)
 163 {
 164     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
 165     WORD preloaded = 0; /* MAX_STREAMS, 16 */
 166     unsigned int i;
 167
 168     if (TRACE_ON(d3d_decl))
 169     {
 170         for (i = 0; i < element_count; ++i)
 171         {
 172             dump_wined3dvertexelement(elements + i);
 173         }
 174     }
 175
 176     declaration->ref = 1;
 177     declaration->parent = parent;
 178     declaration->parent_ops = parent_ops;
 179     declaration->device = device;
 180     declaration->elements = HeapAlloc(GetProcessHeap(), 0, sizeof(*declaration->elements) * element_count);
 181     if (!declaration->elements)
 182     {
 183         ERR("Failed to allocate elements memory.\n");
 184         return E_OUTOFMEMORY;
 185     }
 186     declaration->element_count = element_count;
 187
 188     /* Do some static analysis on the elements to make reading the
 189      * declaration more comfortable for the drawing code. */
 190     for (i = 0; i < element_count; ++i)
 191     {
 192         struct wined3d_vertex_declaration_element *e = &declaration->elements[i];
 193
 194         e->format = wined3d_get_format(gl_info, elements[i].format);
 195         e->ffp_valid = declaration_element_valid_ffp(&elements[i]);
 196         e->input_slot = elements[i].input_slot;
 197         e->offset = elements[i].offset;
 198         e->output_slot = elements[i].output_slot;
 199         e->method = elements[i].method;
 200         e->usage = elements[i].usage;
 201         e->usage_idx = elements[i].usage_idx;
 202
 203         if (e->usage == WINED3DDECLUSAGE_POSITIONT) declaration->position_transformed = TRUE;
 204
 205         /* Find the streams used in the declaration. The vertex buffers have
 206          * to be loaded when drawing, but filter tesselation pseudo streams. */
 207         if (e->input_slot >= MAX_STREAMS) continue;
 208
 209         if (!e->format->gl_vtx_format)
 210         {
 211             FIXME("The application tries to use an unsupported format (%s), returning E_FAIL.\n",
 212                     debug_d3dformat(elements[i].format));
 213             HeapFree(GetProcessHeap(), 0, declaration->elements);
 214             return E_FAIL;
 215         }
 216
 217         if (e->offset & 0x3)
 218         {
 219             WARN("Declaration element %u is not 4 byte aligned(%u), returning E_FAIL.\n", i, e->offset);
 220             HeapFree(GetProcessHeap(), 0, declaration->elements);
 221             return E_FAIL;
 222         }
 223
 224         if (!(preloaded & (1 << e->input_slot)))
 225         {
 226             declaration->streams[declaration->num_streams] = e->input_slot;
 227             ++declaration->num_streams;
 228             preloaded |= 1 << e->input_slot;
 229         }
 230
 231         if (elements[i].format == WINED3DFMT_R16G16_FLOAT || elements[i].format == WINED3DFMT_R16G16B16A16_FLOAT)
 232         {
 233             if (!gl_info->supported[ARB_HALF_FLOAT_VERTEX]) declaration->half_float_conv_needed = TRUE;
 234         }
 235     }
 236
 237     return WINED3D_OK;
 238 }