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 /* *******************************************
  41    IWineD3DVertexDeclaration IUnknown parts follow
  42    ******************************************* */
  43 static HRESULT WINAPI IWineD3DVertexDeclarationImpl_QueryInterface(IWineD3DVertexDeclaration *iface, REFIID riid, LPVOID *ppobj)
  44 {
  45     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
  46     TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
  47     if (IsEqualGUID(riid, &IID_IUnknown)
  48         || IsEqualGUID(riid, &IID_IWineD3DBase)
  49         || IsEqualGUID(riid, &IID_IWineD3DVertexDeclaration)){
  50         IUnknown_AddRef(iface);
  51         *ppobj = This;
  52         return S_OK;
  53     }
  54     *ppobj = NULL;
  55     return E_NOINTERFACE;
  56 }
  57
  58 static ULONG WINAPI IWineD3DVertexDeclarationImpl_AddRef(IWineD3DVertexDeclaration *iface) {
  59     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
  60     TRACE("(%p) : AddRef increasing from %d\n", This, This->ref);
  61     return InterlockedIncrement(&This->ref);
  62 }
  63
  64 static ULONG WINAPI IWineD3DVertexDeclarationImpl_Release(IWineD3DVertexDeclaration *iface) {
  65     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
  66     ULONG ref;
  67     TRACE("(%p) : Releasing from %d\n", This, This->ref);
  68     ref = InterlockedDecrement(&This->ref);
  69     if (!ref)
  70     {
  71         HeapFree(GetProcessHeap(), 0, This->elements);
  72         This->parent_ops->wined3d_object_destroyed(This->parent);
  73         HeapFree(GetProcessHeap(), 0, This);
  74     }
  75     return ref;
  76 }
  77
  78 /* *******************************************
  79    IWineD3DVertexDeclaration parts follow
  80    ******************************************* */
  81
  82 static void * WINAPI IWineD3DVertexDeclarationImpl_GetParent(IWineD3DVertexDeclaration *iface)
  83 {
  84     TRACE("iface %p.\n", iface);
  85
  86     return ((IWineD3DVertexDeclarationImpl *)iface)->parent;
  87 }
  88
  89 static BOOL declaration_element_valid_ffp(const WINED3DVERTEXELEMENT *element)
  90 {
  91     switch(element->usage)
  92     {
  93         case WINED3DDECLUSAGE_POSITION:
  94         case WINED3DDECLUSAGE_POSITIONT:
  95             switch(element->format)
  96             {
  97                 case WINED3DFMT_R32G32_FLOAT:
  98                 case WINED3DFMT_R32G32B32_FLOAT:
  99                 case WINED3DFMT_R32G32B32A32_FLOAT:
 100                 case WINED3DFMT_R16G16_SINT:
 101                 case WINED3DFMT_R16G16B16A16_SINT:
 102                 case WINED3DFMT_R16G16_FLOAT:
 103                 case WINED3DFMT_R16G16B16A16_FLOAT:
 104                     return TRUE;
 105                 default:
 106                     return FALSE;
 107             }
 108
 109         case WINED3DDECLUSAGE_BLENDWEIGHT:
 110             switch(element->format)
 111             {
 112                 case WINED3DFMT_R32_FLOAT:
 113                 case WINED3DFMT_R32G32_FLOAT:
 114                 case WINED3DFMT_R32G32B32_FLOAT:
 115                 case WINED3DFMT_R32G32B32A32_FLOAT:
 116                 case WINED3DFMT_B8G8R8A8_UNORM:
 117                 case WINED3DFMT_R8G8B8A8_UINT:
 118                 case WINED3DFMT_R16G16_SINT:
 119                 case WINED3DFMT_R16G16B16A16_SINT:
 120                 case WINED3DFMT_R16G16_FLOAT:
 121                 case WINED3DFMT_R16G16B16A16_FLOAT:
 122                     return TRUE;
 123                 default:
 124                     return FALSE;
 125             }
 126
 127         case WINED3DDECLUSAGE_NORMAL:
 128             switch(element->format)
 129             {
 130                 case WINED3DFMT_R32G32B32_FLOAT:
 131                 case WINED3DFMT_R32G32B32A32_FLOAT:
 132                 case WINED3DFMT_R16G16B16A16_SINT:
 133                 case WINED3DFMT_R16G16B16A16_FLOAT:
 134                     return TRUE;
 135                 default:
 136                     return FALSE;
 137             }
 138
 139         case WINED3DDECLUSAGE_TEXCOORD:
 140             switch(element->format)
 141             {
 142                 case WINED3DFMT_R32_FLOAT:
 143                 case WINED3DFMT_R32G32_FLOAT:
 144                 case WINED3DFMT_R32G32B32_FLOAT:
 145                 case WINED3DFMT_R32G32B32A32_FLOAT:
 146                 case WINED3DFMT_R16G16_SINT:
 147                 case WINED3DFMT_R16G16B16A16_SINT:
 148                 case WINED3DFMT_R16G16_FLOAT:
 149                 case WINED3DFMT_R16G16B16A16_FLOAT:
 150                     return TRUE;
 151                 default:
 152                     return FALSE;
 153             }
 154
 155         case WINED3DDECLUSAGE_COLOR:
 156             switch(element->format)
 157             {
 158                 case WINED3DFMT_R32G32B32_FLOAT:
 159                 case WINED3DFMT_R32G32B32A32_FLOAT:
 160                 case WINED3DFMT_B8G8R8A8_UNORM:
 161                 case WINED3DFMT_R8G8B8A8_UINT:
 162                 case WINED3DFMT_R16G16B16A16_SINT:
 163                 case WINED3DFMT_R8G8B8A8_UNORM:
 164                 case WINED3DFMT_R16G16B16A16_SNORM:
 165                 case WINED3DFMT_R16G16B16A16_UNORM:
 166                 case WINED3DFMT_R16G16B16A16_FLOAT:
 167                     return TRUE;
 168                 default:
 169                     return FALSE;
 170             }
 171
 172         default:
 173             return FALSE;
 174     }
 175 }
 176
 177 static const IWineD3DVertexDeclarationVtbl IWineD3DVertexDeclaration_Vtbl =
 178 {
 179     /* IUnknown */
 180     IWineD3DVertexDeclarationImpl_QueryInterface,
 181     IWineD3DVertexDeclarationImpl_AddRef,
 182     IWineD3DVertexDeclarationImpl_Release,
 183     /* IWineD3DVertexDeclaration */
 184     IWineD3DVertexDeclarationImpl_GetParent,
 185 };
 186
 187 HRESULT vertexdeclaration_init(IWineD3DVertexDeclarationImpl *declaration, IWineD3DDeviceImpl *device,
 188         const WINED3DVERTEXELEMENT *elements, UINT element_count,
 189         void *parent, const struct wined3d_parent_ops *parent_ops)
 190 {
 191     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
 192     WORD preloaded = 0; /* MAX_STREAMS, 16 */
 193     unsigned int i;
 194
 195     if (TRACE_ON(d3d_decl))
 196     {
 197         for (i = 0; i < element_count; ++i)
 198         {
 199             dump_wined3dvertexelement(elements + i);
 200         }
 201     }
 202
 203     declaration->lpVtbl = &IWineD3DVertexDeclaration_Vtbl;
 204     declaration->ref = 1;
 205     declaration->parent = parent;
 206     declaration->parent_ops = parent_ops;
 207     declaration->device = device;
 208     declaration->elements = HeapAlloc(GetProcessHeap(), 0, sizeof(*declaration->elements) * element_count);
 209     if (!declaration->elements)
 210     {
 211         ERR("Failed to allocate elements memory.\n");
 212         return E_OUTOFMEMORY;
 213     }
 214     declaration->element_count = element_count;
 215
 216     /* Do some static analysis on the elements to make reading the
 217      * declaration more comfortable for the drawing code. */
 218     for (i = 0; i < element_count; ++i)
 219     {
 220         struct wined3d_vertex_declaration_element *e = &declaration->elements[i];
 221
 222         e->format = wined3d_get_format(gl_info, elements[i].format);
 223         e->ffp_valid = declaration_element_valid_ffp(&elements[i]);
 224         e->input_slot = elements[i].input_slot;
 225         e->offset = elements[i].offset;
 226         e->output_slot = elements[i].output_slot;
 227         e->method = elements[i].method;
 228         e->usage = elements[i].usage;
 229         e->usage_idx = elements[i].usage_idx;
 230
 231         if (e->usage == WINED3DDECLUSAGE_POSITIONT) declaration->position_transformed = TRUE;
 232
 233         /* Find the streams used in the declaration. The vertex buffers have
 234          * to be loaded when drawing, but filter tesselation pseudo streams. */
 235         if (e->input_slot >= MAX_STREAMS) continue;
 236
 237         if (!e->format->gl_vtx_format)
 238         {
 239             FIXME("The application tries to use an unsupported format (%s), returning E_FAIL.\n",
 240                     debug_d3dformat(elements[i].format));
 241             HeapFree(GetProcessHeap(), 0, declaration->elements);
 242             return E_FAIL;
 243         }
 244
 245         if (e->offset & 0x3)
 246         {
 247             WARN("Declaration element %u is not 4 byte aligned(%u), returning E_FAIL.\n", i, e->offset);
 248             HeapFree(GetProcessHeap(), 0, declaration->elements);
 249             return E_FAIL;
 250         }
 251
 252         if (!(preloaded & (1 << e->input_slot)))
 253         {
 254             declaration->streams[declaration->num_streams] = e->input_slot;
 255             ++declaration->num_streams;
 256             preloaded |= 1 << e->input_slot;
 257         }
 258
 259         if (elements[i].format == WINED3DFMT_R16G16_FLOAT || elements[i].format == WINED3DFMT_R16G16B16A16_FLOAT)
 260         {
 261             if (!gl_info->supported[ARB_HALF_FLOAT_VERTEX]) declaration->half_float_conv_needed = TRUE;
 262         }
 263     }
 264
 265     return WINED3D_OK;
 266 }