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 HRESULT WINAPI IWineD3DVertexDeclarationImpl_GetParent(IWineD3DVertexDeclaration *iface, IUnknown** parent){
  83     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
  84
  85     *parent= This->parent;
  86     IUnknown_AddRef(*parent);
  87     TRACE("(%p) : returning %p\n", This, *parent);
  88     return WINED3D_OK;
  89 }
  90
  91 static BOOL declaration_element_valid_ffp(const WINED3DVERTEXELEMENT *element)
  92 {
  93     switch(element->usage)
  94     {
  95         case WINED3DDECLUSAGE_POSITION:
  96         case WINED3DDECLUSAGE_POSITIONT:
  97             switch(element->format)
  98             {
  99                 case WINED3DFMT_R32G32_FLOAT:
 100                 case WINED3DFMT_R32G32B32_FLOAT:
 101                 case WINED3DFMT_R32G32B32A32_FLOAT:
 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 WINED3DDECLUSAGE_BLENDWEIGHT:
 112             switch(element->format)
 113             {
 114                 case WINED3DFMT_R32_FLOAT:
 115                 case WINED3DFMT_R32G32_FLOAT:
 116                 case WINED3DFMT_R32G32B32_FLOAT:
 117                 case WINED3DFMT_R32G32B32A32_FLOAT:
 118                 case WINED3DFMT_B8G8R8A8_UNORM:
 119                 case WINED3DFMT_R8G8B8A8_UINT:
 120                 case WINED3DFMT_R16G16_SINT:
 121                 case WINED3DFMT_R16G16B16A16_SINT:
 122                 case WINED3DFMT_R16G16_FLOAT:
 123                 case WINED3DFMT_R16G16B16A16_FLOAT:
 124                     return TRUE;
 125                 default:
 126                     return FALSE;
 127             }
 128
 129         case WINED3DDECLUSAGE_NORMAL:
 130             switch(element->format)
 131             {
 132                 case WINED3DFMT_R32G32B32_FLOAT:
 133                 case WINED3DFMT_R32G32B32A32_FLOAT:
 134                 case WINED3DFMT_R16G16B16A16_SINT:
 135                 case WINED3DFMT_R16G16B16A16_FLOAT:
 136                     return TRUE;
 137                 default:
 138                     return FALSE;
 139             }
 140
 141         case WINED3DDECLUSAGE_TEXCOORD:
 142             switch(element->format)
 143             {
 144                 case WINED3DFMT_R32_FLOAT:
 145                 case WINED3DFMT_R32G32_FLOAT:
 146                 case WINED3DFMT_R32G32B32_FLOAT:
 147                 case WINED3DFMT_R32G32B32A32_FLOAT:
 148                 case WINED3DFMT_R16G16_SINT:
 149                 case WINED3DFMT_R16G16B16A16_SINT:
 150                 case WINED3DFMT_R16G16_FLOAT:
 151                 case WINED3DFMT_R16G16B16A16_FLOAT:
 152                     return TRUE;
 153                 default:
 154                     return FALSE;
 155             }
 156
 157         case WINED3DDECLUSAGE_COLOR:
 158             switch(element->format)
 159             {
 160                 case WINED3DFMT_R32G32B32_FLOAT:
 161                 case WINED3DFMT_R32G32B32A32_FLOAT:
 162                 case WINED3DFMT_B8G8R8A8_UNORM:
 163                 case WINED3DFMT_R8G8B8A8_UINT:
 164                 case WINED3DFMT_R16G16B16A16_SINT:
 165                 case WINED3DFMT_R8G8B8A8_UNORM:
 166                 case WINED3DFMT_R16G16B16A16_SNORM:
 167                 case WINED3DFMT_R16G16B16A16_UNORM:
 168                 case WINED3DFMT_R16G16B16A16_FLOAT:
 169                     return TRUE;
 170                 default:
 171                     return FALSE;
 172             }
 173
 174         default:
 175             return FALSE;
 176     }
 177 }
 178
 179 static const IWineD3DVertexDeclarationVtbl IWineD3DVertexDeclaration_Vtbl =
 180 {
 181     /* IUnknown */
 182     IWineD3DVertexDeclarationImpl_QueryInterface,
 183     IWineD3DVertexDeclarationImpl_AddRef,
 184     IWineD3DVertexDeclarationImpl_Release,
 185     /* IWineD3DVertexDeclaration */
 186     IWineD3DVertexDeclarationImpl_GetParent,
 187 };
 188
 189 HRESULT vertexdeclaration_init(IWineD3DVertexDeclarationImpl *declaration, IWineD3DDeviceImpl *device,
 190         const WINED3DVERTEXELEMENT *elements, UINT element_count,
 191         IUnknown *parent, const struct wined3d_parent_ops *parent_ops)
 192 {
 193     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
 194     WORD preloaded = 0; /* MAX_STREAMS, 16 */
 195     unsigned int i;
 196
 197     if (TRACE_ON(d3d_decl))
 198     {
 199         for (i = 0; i < element_count; ++i)
 200         {
 201             dump_wined3dvertexelement(elements + i);
 202         }
 203     }
 204
 205     declaration->lpVtbl = &IWineD3DVertexDeclaration_Vtbl;
 206     declaration->ref = 1;
 207     declaration->parent = parent;
 208     declaration->parent_ops = parent_ops;
 209     declaration->device = device;
 210     declaration->elements = HeapAlloc(GetProcessHeap(), 0, sizeof(*declaration->elements) * element_count);
 211     if (!declaration->elements)
 212     {
 213         ERR("Failed to allocate elements memory.\n");
 214         return E_OUTOFMEMORY;
 215     }
 216     declaration->element_count = element_count;
 217
 218     /* Do some static analysis on the elements to make reading the
 219      * declaration more comfortable for the drawing code. */
 220     for (i = 0; i < element_count; ++i)
 221     {
 222         struct wined3d_vertex_declaration_element *e = &declaration->elements[i];
 223
 224         e->format_desc = getFormatDescEntry(elements[i].format, gl_info);
 225         e->ffp_valid = declaration_element_valid_ffp(&elements[i]);
 226         e->input_slot = elements[i].input_slot;
 227         e->offset = elements[i].offset;
 228         e->output_slot = elements[i].output_slot;
 229         e->method = elements[i].method;
 230         e->usage = elements[i].usage;
 231         e->usage_idx = elements[i].usage_idx;
 232
 233         if (e->usage == WINED3DDECLUSAGE_POSITIONT) declaration->position_transformed = TRUE;
 234
 235         /* Find the streams used in the declaration. The vertex buffers have
 236          * to be loaded when drawing, but filter tesselation pseudo streams. */
 237         if (e->input_slot >= MAX_STREAMS) continue;
 238
 239         if (!e->format_desc->gl_vtx_format)
 240         {
 241             FIXME("The application tries to use an unsupported format (%s), returning E_FAIL.\n",
 242                     debug_d3dformat(elements[i].format));
 243             HeapFree(GetProcessHeap(), 0, declaration->elements);
 244             return E_FAIL;
 245         }
 246
 247         if (e->offset & 0x3)
 248         {
 249             WARN("Declaration element %u is not 4 byte aligned(%u), returning E_FAIL.\n", i, e->offset);
 250             HeapFree(GetProcessHeap(), 0, declaration->elements);
 251             return E_FAIL;
 252         }
 253
 254         if (!(preloaded & (1 << e->input_slot)))
 255         {
 256             declaration->streams[declaration->num_streams] = e->input_slot;
 257             ++declaration->num_streams;
 258             preloaded |= 1 << e->input_slot;
 259         }
 260
 261         if (elements[i].format == WINED3DFMT_R16G16_FLOAT || elements[i].format == WINED3DFMT_R16G16B16A16_FLOAT)
 262         {
 263             if (!gl_info->supported[ARB_HALF_FLOAT_VERTEX]) declaration->half_float_conv_needed = TRUE;
 264         }
 265     }
 266
 267     return WINED3D_OK;
 268 }