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  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #include "config.h"
  25 #include "wined3d_private.h"
  26
  27 WINE_DEFAULT_DEBUG_CHANNEL(d3d_decl);
  28
  29 static void dump_wined3dvertexelement(const WINED3DVERTEXELEMENT *element) {
  30     TRACE("     Stream: %d\n", element->Stream);
  31     TRACE("     Offset: %d\n", element->Offset);
  32     TRACE("       Type: %s (%#x)\n", debug_d3ddecltype(element->Type), element->Type);
  33     TRACE("     Method: %s (%#x)\n", debug_d3ddeclmethod(element->Method), element->Method);
  34     TRACE("      Usage: %s (%#x)\n", debug_d3ddeclusage(element->Usage), element->Usage);
  35     TRACE("Usage index: %d\n", element->UsageIndex);
  36     TRACE("   Register: %d\n", element->Reg);
  37 }
  38
  39 /* *******************************************
  40    IWineD3DVertexDeclaration IUnknown parts follow
  41    ******************************************* */
  42 static HRESULT WINAPI IWineD3DVertexDeclarationImpl_QueryInterface(IWineD3DVertexDeclaration *iface, REFIID riid, LPVOID *ppobj)
  43 {
  44     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
  45     TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
  46     if (IsEqualGUID(riid, &IID_IUnknown)
  47         || IsEqualGUID(riid, &IID_IWineD3DBase)
  48         || IsEqualGUID(riid, &IID_IWineD3DVertexDeclaration)){
  49         IUnknown_AddRef(iface);
  50         *ppobj = This;
  51         return S_OK;
  52     }
  53     *ppobj = NULL;
  54     return E_NOINTERFACE;
  55 }
  56
  57 static ULONG WINAPI IWineD3DVertexDeclarationImpl_AddRef(IWineD3DVertexDeclaration *iface) {
  58     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
  59     TRACE("(%p) : AddRef increasing from %d\n", This, This->ref);
  60     return InterlockedIncrement(&This->ref);
  61 }
  62
  63 static ULONG WINAPI IWineD3DVertexDeclarationImpl_Release(IWineD3DVertexDeclaration *iface) {
  64     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
  65     ULONG ref;
  66     TRACE("(%p) : Releasing from %d\n", This, This->ref);
  67     ref = InterlockedDecrement(&This->ref);
  68     if (ref == 0) {
  69         if(iface == This->wineD3DDevice->stateBlock->vertexDecl) {
  70             /* See comment in PixelShader::Release */
  71             IWineD3DDeviceImpl_MarkStateDirty(This->wineD3DDevice, STATE_VDECL);
  72         }
  73
  74         HeapFree(GetProcessHeap(), 0, This->pDeclarationWine);
  75         HeapFree(GetProcessHeap(), 0, This);
  76     }
  77     return ref;
  78 }
  79
  80 /* *******************************************
  81    IWineD3DVertexDeclaration parts follow
  82    ******************************************* */
  83
  84 static HRESULT WINAPI IWineD3DVertexDeclarationImpl_GetParent(IWineD3DVertexDeclaration *iface, IUnknown** parent){
  85     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
  86
  87     *parent= This->parent;
  88     IUnknown_AddRef(*parent);
  89     TRACE("(%p) : returning %p\n", This, *parent);
  90     return WINED3D_OK;
  91 }
  92
  93 static HRESULT WINAPI IWineD3DVertexDeclarationImpl_GetDevice(IWineD3DVertexDeclaration *iface, IWineD3DDevice** ppDevice) {
  94     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
  95     TRACE("(%p) : returning %p\n", This, This->wineD3DDevice);
  96
  97     *ppDevice = (IWineD3DDevice *) This->wineD3DDevice;
  98     IWineD3DDevice_AddRef(*ppDevice);
  99
 100     return WINED3D_OK;
 101 }
 102
 103 static HRESULT WINAPI IWineD3DVertexDeclarationImpl_GetDeclaration(IWineD3DVertexDeclaration *iface,
 104         WINED3DVERTEXELEMENT *elements, size_t *element_count) {
 105     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
 106     HRESULT hr = WINED3D_OK;
 107
 108     TRACE("(%p) : d3d version %d, elements %p, element_count %p\n",
 109             This, ((IWineD3DImpl *)This->wineD3DDevice->wineD3D)->dxVersion, elements, element_count);
 110
 111     *element_count = This->declarationWNumElements;
 112     if (elements) {
 113         CopyMemory(elements, This->pDeclarationWine, This->declarationWNumElements * sizeof(WINED3DVERTEXELEMENT));
 114     }
 115
 116     return hr;
 117 }
 118
 119 static HRESULT WINAPI IWineD3DVertexDeclarationImpl_SetDeclaration(IWineD3DVertexDeclaration *iface,
 120         const WINED3DVERTEXELEMENT *elements, size_t element_count) {
 121     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
 122     HRESULT hr = WINED3D_OK;
 123     int i, j;
 124     char isPreLoaded[MAX_STREAMS];
 125
 126     TRACE("(%p) : d3d version %d\n", This, ((IWineD3DImpl *)This->wineD3DDevice->wineD3D)->dxVersion);
 127     memset(isPreLoaded, 0, sizeof(isPreLoaded));
 128
 129     if (TRACE_ON(d3d_decl)) {
 130         for (i = 0; i < element_count; ++i) {
 131             dump_wined3dvertexelement(elements+i);
 132         }
 133     }
 134
 135     This->declarationWNumElements = element_count;
 136     This->pDeclarationWine = HeapAlloc(GetProcessHeap(), 0, sizeof(WINED3DVERTEXELEMENT) * element_count);
 137     if (!This->pDeclarationWine) {
 138         ERR("Memory allocation failed\n");
 139         return WINED3DERR_OUTOFVIDEOMEMORY;
 140     } else {
 141         CopyMemory(This->pDeclarationWine, elements, sizeof(WINED3DVERTEXELEMENT) * element_count);
 142     }
 143
 144     /* Do some static analysis on the elements to make reading the declaration more comfortable
 145      * for the drawing code
 146      */
 147     This->num_streams = 0;
 148     This->position_transformed = FALSE;
 149     for (i = 0; i < element_count; ++i) {
 150
 151         if(This->pDeclarationWine[i].Usage == WINED3DDECLUSAGE_POSITIONT) {
 152             This->position_transformed = TRUE;
 153         }
 154
 155         /* Find the Streams used in the declaration. The vertex buffers have to be loaded
 156          * when drawing, but filter tesselation pseudo streams
 157          */
 158         if(This->pDeclarationWine[i].Stream >= MAX_STREAMS) continue;
 159
 160         if(!isPreLoaded[This->pDeclarationWine[i].Stream]) {
 161             This->streams[This->num_streams] = This->pDeclarationWine[i].Stream;
 162             This->num_streams++;
 163             isPreLoaded[This->pDeclarationWine[i].Stream] = 1;
 164         }
 165
 166         /* Create a sorted array containing the attribute declarations that are of type
 167          * D3DCOLOR. D3DCOLOR requires swizzling of the r and b component, and if the
 168          * declaration of one attribute changes the vertex shader needs recompilation.
 169          * Having a sorted array of the attributes allows efficient comparison of the
 170          * declaration against a shader
 171          */
 172         if(This->pDeclarationWine[i].Type == WINED3DDECLTYPE_D3DCOLOR) {
 173             for(j = 0; j < This->num_swizzled_attribs; j++) {
 174                 if(This->swizzled_attribs[j].usage >  This->pDeclarationWine[i].Usage ||
 175                   (This->swizzled_attribs[j].usage == This->pDeclarationWine[i].Usage &&
 176                    This->swizzled_attribs[j].idx   >   This->pDeclarationWine[i].UsageIndex)) {
 177                     memmove(&This->swizzled_attribs[j + 1], &This->swizzled_attribs[j],
 178                              sizeof(This->swizzled_attribs) - (sizeof(This->swizzled_attribs[0]) * (j + 1)));
 179                     break;
 180                 }
 181             }
 182
 183             This->swizzled_attribs[j].usage = This->pDeclarationWine[i].Usage;
 184             This->swizzled_attribs[j].idx = This->pDeclarationWine[i].UsageIndex;
 185             This->num_swizzled_attribs++;
 186         }
 187     }
 188
 189     TRACE("Swizzled attributes found:\n");
 190     for(i = 0; i < This->num_swizzled_attribs; i++) {
 191         TRACE("%u: %s%d\n", i,
 192               debug_d3ddeclusage(This->swizzled_attribs[i].usage), This->swizzled_attribs[i].idx);
 193     }
 194     TRACE("Returning\n");
 195     return hr;
 196 }
 197
 198 const IWineD3DVertexDeclarationVtbl IWineD3DVertexDeclaration_Vtbl =
 199 {
 200     /* IUnknown */
 201     IWineD3DVertexDeclarationImpl_QueryInterface,
 202     IWineD3DVertexDeclarationImpl_AddRef,
 203     IWineD3DVertexDeclarationImpl_Release,
 204     /* IWineD3DVertexDeclaration */
 205     IWineD3DVertexDeclarationImpl_GetParent,
 206     IWineD3DVertexDeclarationImpl_GetDevice,
 207     IWineD3DVertexDeclarationImpl_GetDeclaration,
 208     IWineD3DVertexDeclarationImpl_SetDeclaration
 209 };