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 #define GLINFO_LOCATION This->wineD3DDevice->adapter->gl_info
  30
  31 static void dump_wined3dvertexelement(const WINED3DVERTEXELEMENT *element) {
  32     TRACE("     Stream: %d\n", element->Stream);
  33     TRACE("     Offset: %d\n", element->Offset);
  34     TRACE("       Type: %s (%#x)\n", debug_d3ddecltype(element->Type), element->Type);
  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 index: %d\n", element->UsageIndex);
  38     TRACE("   Register: %d\n", element->Reg);
  39 }
  40
  41 /* *******************************************
  42    IWineD3DVertexDeclaration IUnknown parts follow
  43    ******************************************* */
  44 static HRESULT WINAPI IWineD3DVertexDeclarationImpl_QueryInterface(IWineD3DVertexDeclaration *iface, REFIID riid, LPVOID *ppobj)
  45 {
  46     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
  47     TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
  48     if (IsEqualGUID(riid, &IID_IUnknown)
  49         || IsEqualGUID(riid, &IID_IWineD3DBase)
  50         || IsEqualGUID(riid, &IID_IWineD3DVertexDeclaration)){
  51         IUnknown_AddRef(iface);
  52         *ppobj = This;
  53         return S_OK;
  54     }
  55     *ppobj = NULL;
  56     return E_NOINTERFACE;
  57 }
  58
  59 static ULONG WINAPI IWineD3DVertexDeclarationImpl_AddRef(IWineD3DVertexDeclaration *iface) {
  60     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
  61     TRACE("(%p) : AddRef increasing from %d\n", This, This->ref);
  62     return InterlockedIncrement(&This->ref);
  63 }
  64
  65 static ULONG WINAPI IWineD3DVertexDeclarationImpl_Release(IWineD3DVertexDeclaration *iface) {
  66     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
  67     ULONG ref;
  68     TRACE("(%p) : Releasing from %d\n", This, This->ref);
  69     ref = InterlockedDecrement(&This->ref);
  70     if (ref == 0) {
  71         if(iface == This->wineD3DDevice->stateBlock->vertexDecl) {
  72             /* See comment in PixelShader::Release */
  73             IWineD3DDeviceImpl_MarkStateDirty(This->wineD3DDevice, STATE_VDECL);
  74         }
  75
  76         HeapFree(GetProcessHeap(), 0, This->pDeclarationWine);
  77         HeapFree(GetProcessHeap(), 0, This);
  78     }
  79     return ref;
  80 }
  81
  82 /* *******************************************
  83    IWineD3DVertexDeclaration parts follow
  84    ******************************************* */
  85
  86 static HRESULT WINAPI IWineD3DVertexDeclarationImpl_GetParent(IWineD3DVertexDeclaration *iface, IUnknown** parent){
  87     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
  88
  89     *parent= This->parent;
  90     IUnknown_AddRef(*parent);
  91     TRACE("(%p) : returning %p\n", This, *parent);
  92     return WINED3D_OK;
  93 }
  94
  95 static HRESULT WINAPI IWineD3DVertexDeclarationImpl_GetDevice(IWineD3DVertexDeclaration *iface, IWineD3DDevice** ppDevice) {
  96     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
  97     TRACE("(%p) : returning %p\n", This, This->wineD3DDevice);
  98
  99     *ppDevice = (IWineD3DDevice *) This->wineD3DDevice;
 100     IWineD3DDevice_AddRef(*ppDevice);
 101
 102     return WINED3D_OK;
 103 }
 104
 105 static HRESULT WINAPI IWineD3DVertexDeclarationImpl_GetDeclaration(IWineD3DVertexDeclaration *iface,
 106         WINED3DVERTEXELEMENT *elements, size_t *element_count) {
 107     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
 108     HRESULT hr = WINED3D_OK;
 109
 110     TRACE("(%p) : d3d version %d, elements %p, element_count %p\n",
 111             This, ((IWineD3DImpl *)This->wineD3DDevice->wineD3D)->dxVersion, elements, element_count);
 112
 113     *element_count = This->declarationWNumElements;
 114     if (elements) {
 115         CopyMemory(elements, This->pDeclarationWine, This->declarationWNumElements * sizeof(WINED3DVERTEXELEMENT));
 116     }
 117
 118     return hr;
 119 }
 120
 121 static HRESULT WINAPI IWineD3DVertexDeclarationImpl_SetDeclaration(IWineD3DVertexDeclaration *iface,
 122         const WINED3DVERTEXELEMENT *elements, size_t element_count) {
 123     IWineD3DVertexDeclarationImpl *This = (IWineD3DVertexDeclarationImpl *)iface;
 124     HRESULT hr = WINED3D_OK;
 125     int i, j;
 126     char isPreLoaded[MAX_STREAMS];
 127
 128     TRACE("(%p) : d3d version %d\n", This, ((IWineD3DImpl *)This->wineD3DDevice->wineD3D)->dxVersion);
 129     memset(isPreLoaded, 0, sizeof(isPreLoaded));
 130
 131     if (TRACE_ON(d3d_decl)) {
 132         for (i = 0; i < element_count; ++i) {
 133             dump_wined3dvertexelement(elements+i);
 134         }
 135     }
 136
 137     This->declarationWNumElements = element_count;
 138     This->pDeclarationWine = HeapAlloc(GetProcessHeap(), 0, sizeof(WINED3DVERTEXELEMENT) * element_count);
 139     if (!This->pDeclarationWine) {
 140         ERR("Memory allocation failed\n");
 141         return WINED3DERR_OUTOFVIDEOMEMORY;
 142     } else {
 143         CopyMemory(This->pDeclarationWine, elements, sizeof(WINED3DVERTEXELEMENT) * element_count);
 144     }
 145
 146     /* Do some static analysis on the elements to make reading the declaration more comfortable
 147      * for the drawing code
 148      */
 149     This->num_streams = 0;
 150     This->position_transformed = FALSE;
 151     for (i = 0; i < element_count; ++i) {
 152
 153         if(This->pDeclarationWine[i].Usage == WINED3DDECLUSAGE_POSITIONT) {
 154             This->position_transformed = TRUE;
 155         }
 156
 157         /* Find the Streams used in the declaration. The vertex buffers have to be loaded
 158          * when drawing, but filter tesselation pseudo streams
 159          */
 160         if(This->pDeclarationWine[i].Stream >= MAX_STREAMS) continue;
 161
 162         if(!isPreLoaded[This->pDeclarationWine[i].Stream]) {
 163             This->streams[This->num_streams] = This->pDeclarationWine[i].Stream;
 164             This->num_streams++;
 165             isPreLoaded[This->pDeclarationWine[i].Stream] = 1;
 166         }
 167
 168         /* Create a sorted array containing the attribute declarations that are of type
 169          * D3DCOLOR. D3DCOLOR requires swizzling of the r and b component, and if the
 170          * declaration of one attribute changes the vertex shader needs recompilation.
 171          * Having a sorted array of the attributes allows efficient comparison of the
 172          * declaration against a shader
 173          */
 174         if(This->pDeclarationWine[i].Type == WINED3DDECLTYPE_D3DCOLOR) {
 175             for(j = 0; j < This->num_swizzled_attribs; j++) {
 176                 if(This->swizzled_attribs[j].usage >  This->pDeclarationWine[i].Usage ||
 177                   (This->swizzled_attribs[j].usage == This->pDeclarationWine[i].Usage &&
 178                    This->swizzled_attribs[j].idx   >   This->pDeclarationWine[i].UsageIndex)) {
 179                     memmove(&This->swizzled_attribs[j + 1], &This->swizzled_attribs[j],
 180                              sizeof(This->swizzled_attribs) - (sizeof(This->swizzled_attribs[0]) * (j + 1)));
 181                     break;
 182                 }
 183             }
 184
 185             This->swizzled_attribs[j].usage = This->pDeclarationWine[i].Usage;
 186             This->swizzled_attribs[j].idx = This->pDeclarationWine[i].UsageIndex;
 187             This->num_swizzled_attribs++;
 188         } else if(This->pDeclarationWine[i].Type == WINED3DDECLTYPE_FLOAT16_2 ||
 189                   This->pDeclarationWine[i].Type == WINED3DDECLTYPE_FLOAT16_4) {
 190             if(!GL_SUPPORT(NV_HALF_FLOAT)) {
 191                 This->half_float_conv_needed = TRUE;
 192             }
 193         }
 194     }
 195
 196     TRACE("Swizzled attributes found:\n");
 197     for(i = 0; i < This->num_swizzled_attribs; i++) {
 198         TRACE("%u: %s%d\n", i,
 199               debug_d3ddeclusage(This->swizzled_attribs[i].usage), This->swizzled_attribs[i].idx);
 200     }
 201     TRACE("Returning\n");
 202     return hr;
 203 }
 204
 205 const IWineD3DVertexDeclarationVtbl IWineD3DVertexDeclaration_Vtbl =
 206 {
 207     /* IUnknown */
 208     IWineD3DVertexDeclarationImpl_QueryInterface,
 209     IWineD3DVertexDeclarationImpl_AddRef,
 210     IWineD3DVertexDeclarationImpl_Release,
 211     /* IWineD3DVertexDeclaration */
 212     IWineD3DVertexDeclarationImpl_GetParent,
 213     IWineD3DVertexDeclarationImpl_GetDevice,
 214     IWineD3DVertexDeclarationImpl_GetDeclaration,
 215     IWineD3DVertexDeclarationImpl_SetDeclaration
 216 };