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  * Copyright 2007 Stefan Dösinger 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);
  29 #define GLINFO_LOCATION This->resource.wineD3DDevice->adapter->gl_info
  30
  31 /* *******************************************
  32    IWineD3DIndexBuffer IUnknown parts follow
  33    ******************************************* */
  34 static HRESULT WINAPI IWineD3DIndexBufferImpl_QueryInterface(IWineD3DIndexBuffer *iface, REFIID riid, LPVOID *ppobj)
  35 {
  36     IWineD3DIndexBufferImpl *This = (IWineD3DIndexBufferImpl *)iface;
  37     TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
  38     if (IsEqualGUID(riid, &IID_IUnknown)
  39         || IsEqualGUID(riid, &IID_IWineD3DBase)
  40         || IsEqualGUID(riid, &IID_IWineD3DResource)
  41         || IsEqualGUID(riid, &IID_IWineD3DIndexBuffer)){
  42         IUnknown_AddRef(iface);
  43         *ppobj = This;
  44         return S_OK;
  45     }
  46     *ppobj = NULL;
  47     return E_NOINTERFACE;
  48 }
  49
  50 static ULONG WINAPI IWineD3DIndexBufferImpl_AddRef(IWineD3DIndexBuffer *iface) {
  51     IWineD3DIndexBufferImpl *This = (IWineD3DIndexBufferImpl *)iface;
  52     ULONG ref = InterlockedIncrement(&This->resource.ref);
  53     TRACE("(%p) : AddRef increasing from %d\n", This, ref - 1);
  54     return ref;
  55 }
  56
  57 static ULONG WINAPI IWineD3DIndexBufferImpl_Release(IWineD3DIndexBuffer *iface) {
  58     IWineD3DIndexBufferImpl *This = (IWineD3DIndexBufferImpl *)iface;
  59     ULONG ref = InterlockedDecrement(&This->resource.ref);
  60     TRACE("(%p) : Releasing from %d\n", This, ref + 1);
  61     if (ref == 0) {
  62         if(This->vbo) {
  63             IWineD3DDeviceImpl *device = This->resource.wineD3DDevice;
  64
  65             ActivateContext(device, device->lastActiveRenderTarget, CTXUSAGE_RESOURCELOAD);
  66             ENTER_GL();
  67             /* No need to manually unset the buffer. glDeleteBuffers unsets it for the current context,
  68              * but not for other contexts. However, because the d3d buffer is destroyed the app has to
  69              * unset it before doing the next draw, thus dirtifying the index buffer state and forcing
  70              * binding a new buffer
  71              */
  72             GL_EXTCALL(glDeleteBuffersARB(1, &This->vbo));
  73             checkGLcall("glDeleteBuffersARB");
  74             LEAVE_GL();
  75         }
  76
  77         IWineD3DResourceImpl_CleanUp((IWineD3DResource *)iface);
  78         HeapFree(GetProcessHeap(), 0, This);
  79     }
  80     return ref;
  81 }
  82
  83 /* ****************************************************
  84    IWineD3DIndexBuffer IWineD3DResource parts follow
  85    **************************************************** */
  86 static HRESULT WINAPI IWineD3DIndexBufferImpl_GetDevice(IWineD3DIndexBuffer *iface, IWineD3DDevice** ppDevice) {
  87     return IWineD3DResourceImpl_GetDevice((IWineD3DResource *)iface, ppDevice);
  88 }
  89
  90 static HRESULT WINAPI IWineD3DIndexBufferImpl_SetPrivateData(IWineD3DIndexBuffer *iface, REFGUID refguid, CONST void* pData, DWORD SizeOfData, DWORD Flags) {
  91     return IWineD3DResourceImpl_SetPrivateData((IWineD3DResource *)iface, refguid, pData, SizeOfData, Flags);
  92 }
  93
  94 static HRESULT WINAPI IWineD3DIndexBufferImpl_GetPrivateData(IWineD3DIndexBuffer *iface, REFGUID refguid, void* pData, DWORD* pSizeOfData) {
  95     return IWineD3DResourceImpl_GetPrivateData((IWineD3DResource *)iface, refguid, pData, pSizeOfData);
  96 }
  97
  98 static HRESULT WINAPI IWineD3DIndexBufferImpl_FreePrivateData(IWineD3DIndexBuffer *iface, REFGUID refguid) {
  99     return IWineD3DResourceImpl_FreePrivateData((IWineD3DResource *)iface, refguid);
 100 }
 101
 102 static DWORD WINAPI IWineD3DIndexBufferImpl_SetPriority(IWineD3DIndexBuffer *iface, DWORD PriorityNew) {
 103     return IWineD3DResourceImpl_SetPriority((IWineD3DResource *)iface, PriorityNew);
 104 }
 105
 106 static DWORD WINAPI IWineD3DIndexBufferImpl_GetPriority(IWineD3DIndexBuffer *iface) {
 107     return IWineD3DResourceImpl_GetPriority((IWineD3DResource *)iface);
 108 }
 109
 110 static void WINAPI IWineD3DIndexBufferImpl_PreLoad(IWineD3DIndexBuffer *iface) {
 111     IWineD3DResourceImpl_PreLoad((IWineD3DResource *)iface);
 112 }
 113
 114 static void WINAPI IWineD3DIndexBufferImpl_UnLoad(IWineD3DIndexBuffer *iface) {
 115     IWineD3DIndexBufferImpl *This = (IWineD3DIndexBufferImpl *) iface;
 116     IWineD3DDeviceImpl *device = This->resource.wineD3DDevice;
 117     TRACE("(%p)\n", This);
 118
 119     /* This is easy: The whole content is shadowed in This->resource.allocatedMemory,
 120      * so we only have to destroy the vbo. Only do it if we have a vbo, which implies
 121      * that vbos are supported.
 122      * (TODO: Make a IWineD3DBuffer base class for index and vertex buffers and share
 123      * this code. Also needed for D3D10)
 124      */
 125     if(This->vbo) {
 126         ActivateContext(device, device->lastActiveRenderTarget, CTXUSAGE_RESOURCELOAD);
 127         ENTER_GL();
 128         GL_EXTCALL(glDeleteBuffersARB(1, &This->vbo));
 129         checkGLcall("glDeleteBuffersARB");
 130         LEAVE_GL();
 131         This->vbo = 0;
 132     }
 133 }
 134
 135 static WINED3DRESOURCETYPE WINAPI IWineD3DIndexBufferImpl_GetType(IWineD3DIndexBuffer *iface) {
 136     return IWineD3DResourceImpl_GetType((IWineD3DResource *)iface);
 137 }
 138
 139 static HRESULT WINAPI IWineD3DIndexBufferImpl_GetParent(IWineD3DIndexBuffer *iface, IUnknown **pParent) {
 140     return IWineD3DResourceImpl_GetParent((IWineD3DResource *)iface, pParent);
 141 }
 142
 143 /* ******************************************************
 144    IWineD3DIndexBuffer IWineD3DIndexBuffer parts follow
 145    ****************************************************** */
 146 static HRESULT WINAPI IWineD3DIndexBufferImpl_Lock(IWineD3DIndexBuffer *iface, UINT OffsetToLock, UINT SizeToLock, BYTE** ppbData, DWORD Flags) {
 147     IWineD3DIndexBufferImpl *This = (IWineD3DIndexBufferImpl *)iface;
 148     TRACE("(%p) : offset %d, size %d, Flags=%x\n", This, OffsetToLock, SizeToLock, Flags);
 149
 150     InterlockedIncrement(&This->lockcount);
 151     *ppbData = This->resource.allocatedMemory + OffsetToLock;
 152
 153     if(Flags & (WINED3DLOCK_READONLY | WINED3DLOCK_NO_DIRTY_UPDATE) || This->vbo == 0) {
 154         return WINED3D_OK;
 155     }
 156
 157     if(This->dirtystart != This->dirtyend) {
 158         if(This->dirtystart > OffsetToLock) This->dirtystart = OffsetToLock;
 159         if(SizeToLock) {
 160             if(This->dirtyend < OffsetToLock + SizeToLock) This->dirtyend = OffsetToLock + SizeToLock;
 161         } else {
 162             This->dirtyend = This->resource.size;
 163         }
 164     } else {
 165         This->dirtystart = OffsetToLock;
 166         if(SizeToLock)
 167             This->dirtyend = OffsetToLock + SizeToLock;
 168         else
 169             This->dirtyend = This->resource.size;
 170     }
 171
 172     return WINED3D_OK;
 173 }
 174 static HRESULT WINAPI IWineD3DIndexBufferImpl_Unlock(IWineD3DIndexBuffer *iface) {
 175     IWineD3DIndexBufferImpl *This = (IWineD3DIndexBufferImpl *)iface;
 176     unsigned long locks = InterlockedDecrement(&This->lockcount);
 177     TRACE("(%p)\n", This);
 178
 179     /* For now load in unlock */
 180     if(locks == 0 && This->vbo && (This->dirtyend - This->dirtystart) > 0) {
 181         IWineD3DDeviceImpl *device = This->resource.wineD3DDevice;
 182
 183         ActivateContext(device, device->lastActiveRenderTarget, CTXUSAGE_RESOURCELOAD);
 184
 185         ENTER_GL();
 186         GL_EXTCALL(glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, This->vbo));
 187         checkGLcall("glBindBufferARB");
 188         GL_EXTCALL(glBufferSubDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB,
 189                 This->dirtystart, This->dirtyend - This->dirtystart, This->resource.allocatedMemory + This->dirtystart));
 190         checkGLcall("glBufferSubDataARB");
 191         LEAVE_GL();
 192         This->dirtystart = 0;
 193         This->dirtyend = 0;
 194         /* TODO: Move loading into preload when the buffer is used, that avoids dirtifying the state */
 195         IWineD3DDeviceImpl_MarkStateDirty(device, STATE_INDEXBUFFER);
 196     }
 197     return WINED3D_OK;
 198 }
 199 static HRESULT WINAPI IWineD3DIndexBufferImpl_GetDesc(IWineD3DIndexBuffer *iface, WINED3DINDEXBUFFER_DESC *pDesc) {
 200     IWineD3DIndexBufferImpl *This = (IWineD3DIndexBufferImpl *)iface;
 201
 202     TRACE("(%p)\n", This);
 203     pDesc->Format = This->resource.format;
 204     pDesc->Type   = This->resource.resourceType;
 205     pDesc->Usage  = This->resource.usage;
 206     pDesc->Pool   = This->resource.pool;
 207     pDesc->Size   = This->resource.size;
 208     return WINED3D_OK;
 209 }
 210
 211 const IWineD3DIndexBufferVtbl IWineD3DIndexBuffer_Vtbl =
 212 {
 213     /* IUnknown */
 214     IWineD3DIndexBufferImpl_QueryInterface,
 215     IWineD3DIndexBufferImpl_AddRef,
 216     IWineD3DIndexBufferImpl_Release,
 217     /* IWineD3DResource */
 218     IWineD3DIndexBufferImpl_GetParent,
 219     IWineD3DIndexBufferImpl_GetDevice,
 220     IWineD3DIndexBufferImpl_SetPrivateData,
 221     IWineD3DIndexBufferImpl_GetPrivateData,
 222     IWineD3DIndexBufferImpl_FreePrivateData,
 223     IWineD3DIndexBufferImpl_SetPriority,
 224     IWineD3DIndexBufferImpl_GetPriority,
 225     IWineD3DIndexBufferImpl_PreLoad,
 226     IWineD3DIndexBufferImpl_UnLoad,
 227     IWineD3DIndexBufferImpl_GetType,
 228     /* IWineD3DIndexBuffer */
 229     IWineD3DIndexBufferImpl_Lock,
 230     IWineD3DIndexBufferImpl_Unlock,
 231     IWineD3DIndexBufferImpl_GetDesc
 232 };