dlls/wined3d/indexbuffer.c

   1 /*
   2  * IWineD3DIndexBuffer Implementation
   3  *
   4  * Copyright 2002-2004 Jason Edmeades
   5  * Copyright 2003-2004 Raphael Junqueira
   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);
  28 #define GLINFO_LOCATION This->resource.wineD3DDevice->adapter->gl_info
  29
  30 /* *******************************************
  31    IWineD3DIndexBuffer IUnknown parts follow
  32    ******************************************* */
  33 static HRESULT WINAPI IWineD3DIndexBufferImpl_QueryInterface(IWineD3DIndexBuffer *iface, REFIID riid, LPVOID *ppobj)
  34 {
  35     IWineD3DIndexBufferImpl *This = (IWineD3DIndexBufferImpl *)iface;
  36     TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
  37     if (IsEqualGUID(riid, &IID_IUnknown)
  38         || IsEqualGUID(riid, &IID_IWineD3DBase)
  39         || IsEqualGUID(riid, &IID_IWineD3DResource)
  40         || IsEqualGUID(riid, &IID_IWineD3DIndexBuffer)){
  41         IUnknown_AddRef(iface);
  42         *ppobj = This;
  43         return S_OK;
  44     }
  45     *ppobj = NULL;
  46     return E_NOINTERFACE;
  47 }
  48
  49 static ULONG WINAPI IWineD3DIndexBufferImpl_AddRef(IWineD3DIndexBuffer *iface) {
  50     IWineD3DIndexBufferImpl *This = (IWineD3DIndexBufferImpl *)iface;
  51     ULONG ref = InterlockedIncrement(&This->resource.ref);
  52     TRACE("(%p) : AddRef increasing from %d\n", This, ref - 1);
  53     return ref;
  54 }
  55
  56 static ULONG WINAPI IWineD3DIndexBufferImpl_Release(IWineD3DIndexBuffer *iface) {
  57     IWineD3DIndexBufferImpl *This = (IWineD3DIndexBufferImpl *)iface;
  58     ULONG ref = InterlockedDecrement(&This->resource.ref);
  59     TRACE("(%p) : Releasing from %d\n", This, ref + 1);
  60     if (ref == 0) {
  61         if(This->vbo) {
  62             IWineD3DDeviceImpl *device = This->resource.wineD3DDevice;
  63
  64             ActivateContext(device, device->lastActiveRenderTarget, CTXUSAGE_RESOURCELOAD);
  65             ENTER_GL();
  66             /* No need to manually unset the buffer. glDeleteBuffers unsets it for the current context,
  67              * but not for other contexts. However, because the d3d buffer is destroyed the app has to
  68              * unset it before doing the next draw, thus dirtifying the index buffer state and forcing
  69              * binding a new buffer
  70              */
  71             GL_EXTCALL(glDeleteBuffersARB(1, &This->vbo));
  72             checkGLcall("glDeleteBuffersARB");
  73             LEAVE_GL();
  74         }
  75
  76         IWineD3DResourceImpl_CleanUp((IWineD3DResource *)iface);
  77         HeapFree(GetProcessHeap(), 0, This);
  78     }
  79     return ref;
  80 }
  81
  82 /* ****************************************************
  83    IWineD3DIndexBuffer IWineD3DResource parts follow
  84    **************************************************** */
  85 static HRESULT WINAPI IWineD3DIndexBufferImpl_GetDevice(IWineD3DIndexBuffer *iface, IWineD3DDevice** ppDevice) {
  86     return IWineD3DResourceImpl_GetDevice((IWineD3DResource *)iface, ppDevice);
  87 }
  88
  89 static HRESULT WINAPI IWineD3DIndexBufferImpl_SetPrivateData(IWineD3DIndexBuffer *iface, REFGUID refguid, CONST void* pData, DWORD SizeOfData, DWORD Flags) {
  90     return IWineD3DResourceImpl_SetPrivateData((IWineD3DResource *)iface, refguid, pData, SizeOfData, Flags);
  91 }
  92
  93 static HRESULT WINAPI IWineD3DIndexBufferImpl_GetPrivateData(IWineD3DIndexBuffer *iface, REFGUID refguid, void* pData, DWORD* pSizeOfData) {
  94     return IWineD3DResourceImpl_GetPrivateData((IWineD3DResource *)iface, refguid, pData, pSizeOfData);
  95 }
  96
  97 static HRESULT WINAPI IWineD3DIndexBufferImpl_FreePrivateData(IWineD3DIndexBuffer *iface, REFGUID refguid) {
  98     return IWineD3DResourceImpl_FreePrivateData((IWineD3DResource *)iface, refguid);
  99 }
 100
 101 static DWORD WINAPI IWineD3DIndexBufferImpl_SetPriority(IWineD3DIndexBuffer *iface, DWORD PriorityNew) {
 102     return IWineD3DResourceImpl_SetPriority((IWineD3DResource *)iface, PriorityNew);
 103 }
 104
 105 static DWORD WINAPI IWineD3DIndexBufferImpl_GetPriority(IWineD3DIndexBuffer *iface) {
 106     return IWineD3DResourceImpl_GetPriority((IWineD3DResource *)iface);
 107 }
 108
 109 static void WINAPI IWineD3DIndexBufferImpl_PreLoad(IWineD3DIndexBuffer *iface) {
 110     IWineD3DResourceImpl_PreLoad((IWineD3DResource *)iface);
 111 }
 112
 113 static void WINAPI IWineD3DIndexBufferImpl_UnLoad(IWineD3DIndexBuffer *iface) {
 114     IWineD3DIndexBufferImpl *This = (IWineD3DIndexBufferImpl *) iface;
 115     IWineD3DDeviceImpl *device = This->resource.wineD3DDevice;
 116     TRACE("(%p)\n", This);
 117
 118     /* This is easy: The whole content is shadowed in This->resource.allocatedMemory,
 119      * so we only have to destroy the vbo. Only do it if we have a vbo, which implies
 120      * that vbos are supported.
 121      * (TODO: Make a IWineD3DBuffer base class for index and vertex buffers and share
 122      * this code. Also needed for D3D10)
 123      */
 124     if(This->vbo) {
 125         ActivateContext(device, device->lastActiveRenderTarget, CTXUSAGE_RESOURCELOAD);
 126         ENTER_GL();
 127         GL_EXTCALL(glDeleteBuffersARB(1, &This->vbo));
 128         checkGLcall("glDeleteBuffersARB");
 129         LEAVE_GL();
 130         This->vbo = 0;
 131     }
 132 }
 133
 134 static WINED3DRESOURCETYPE WINAPI IWineD3DIndexBufferImpl_GetType(IWineD3DIndexBuffer *iface) {
 135     return IWineD3DResourceImpl_GetType((IWineD3DResource *)iface);
 136 }
 137
 138 static HRESULT WINAPI IWineD3DIndexBufferImpl_GetParent(IWineD3DIndexBuffer *iface, IUnknown **pParent) {
 139     return IWineD3DResourceImpl_GetParent((IWineD3DResource *)iface, pParent);
 140 }
 141
 142 /* ******************************************************
 143    IWineD3DIndexBuffer IWineD3DIndexBuffer parts follow
 144    ****************************************************** */
 145 static HRESULT WINAPI IWineD3DIndexBufferImpl_Lock(IWineD3DIndexBuffer *iface, UINT OffsetToLock, UINT SizeToLock, BYTE** ppbData, DWORD Flags) {
 146     IWineD3DIndexBufferImpl *This = (IWineD3DIndexBufferImpl *)iface;
 147     TRACE("(%p) : offset %d, size %d, Flags=%x\n", This, OffsetToLock, SizeToLock, Flags);
 148
 149     InterlockedIncrement(&This->lockcount);
 150     *ppbData = This->resource.allocatedMemory + OffsetToLock;
 151
 152     if(Flags & (WINED3DLOCK_READONLY | WINED3DLOCK_NO_DIRTY_UPDATE) || This->vbo == 0) {
 153         return WINED3D_OK;
 154     }
 155
 156     if(This->dirtystart != This->dirtyend) {
 157         if(This->dirtystart > OffsetToLock) This->dirtystart = OffsetToLock;
 158         if(SizeToLock) {
 159             if(This->dirtyend < OffsetToLock + SizeToLock) This->dirtyend = OffsetToLock + SizeToLock;
 160         } else {
 161             This->dirtyend = This->resource.size;
 162         }
 163     } else {
 164         This->dirtystart = OffsetToLock;
 165         if(SizeToLock)
 166             This->dirtyend = OffsetToLock + SizeToLock;
 167         else
 168             This->dirtyend = This->resource.size;
 169     }
 170
 171     return WINED3D_OK;
 172 }
 173 static HRESULT WINAPI IWineD3DIndexBufferImpl_Unlock(IWineD3DIndexBuffer *iface) {
 174     IWineD3DIndexBufferImpl *This = (IWineD3DIndexBufferImpl *)iface;
 175     unsigned long locks = InterlockedDecrement(&This->lockcount);
 176     TRACE("(%p)\n", This);
 177
 178     /* For now load in unlock */
 179     if(locks == 0 && This->vbo && (This->dirtyend - This->dirtystart) > 0) {
 180         IWineD3DDeviceImpl *device = This->resource.wineD3DDevice;
 181
 182         ActivateContext(device, device->lastActiveRenderTarget, CTXUSAGE_RESOURCELOAD);
 183
 184         ENTER_GL();
 185         GL_EXTCALL(glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, This->vbo));
 186         checkGLcall("glBindBufferARB");
 187         GL_EXTCALL(glBufferSubDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB,
 188                 This->dirtystart, This->dirtyend - This->dirtystart, This->resource.allocatedMemory + This->dirtystart));
 189         checkGLcall("glBufferSubDataARB");
 190         LEAVE_GL();
 191         This->dirtystart = 0;
 192         This->dirtyend = 0;
 193         /* TODO: Move loading into preload when the buffer is used, that avoids dirtifying the state */
 194         IWineD3DDeviceImpl_MarkStateDirty(device, STATE_INDEXBUFFER);
 195     }
 196     return WINED3D_OK;
 197 }
 198 static HRESULT WINAPI IWineD3DIndexBufferImpl_GetDesc(IWineD3DIndexBuffer *iface, WINED3DINDEXBUFFER_DESC *pDesc) {
 199     IWineD3DIndexBufferImpl *This = (IWineD3DIndexBufferImpl *)iface;
 200
 201     TRACE("(%p)\n", This);
 202     pDesc->Format = This->resource.format;
 203     pDesc->Type   = This->resource.resourceType;
 204     pDesc->Usage  = This->resource.usage;
 205     pDesc->Pool   = This->resource.pool;
 206     pDesc->Size   = This->resource.size;
 207     return WINED3D_OK;
 208 }
 209
 210 const IWineD3DIndexBufferVtbl IWineD3DIndexBuffer_Vtbl =
 211 {
 212     /* IUnknown */
 213     IWineD3DIndexBufferImpl_QueryInterface,
 214     IWineD3DIndexBufferImpl_AddRef,
 215     IWineD3DIndexBufferImpl_Release,
 216     /* IWineD3DResource */
 217     IWineD3DIndexBufferImpl_GetParent,
 218     IWineD3DIndexBufferImpl_GetDevice,
 219     IWineD3DIndexBufferImpl_SetPrivateData,
 220     IWineD3DIndexBufferImpl_GetPrivateData,
 221     IWineD3DIndexBufferImpl_FreePrivateData,
 222     IWineD3DIndexBufferImpl_SetPriority,
 223     IWineD3DIndexBufferImpl_GetPriority,
 224     IWineD3DIndexBufferImpl_PreLoad,
 225     IWineD3DIndexBufferImpl_UnLoad,
 226     IWineD3DIndexBufferImpl_GetType,
 227     /* IWineD3DIndexBuffer */
 228     IWineD3DIndexBufferImpl_Lock,
 229     IWineD3DIndexBufferImpl_Unlock,
 230     IWineD3DIndexBufferImpl_GetDesc
 231 };