gfxResource.cpp

Detailed Description

 1
 2//-----------------------------------------------------------------------------
 3// Copyright (c) 2012 GarageGames, LLC
 4//
 5// Permission is hereby granted, free of charge, to any person obtaining a copy
 6// of this software and associated documentation files (the "Software"), to
 7// deal in the Software without restriction, including without limitation the
 8// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 9// sell copies of the Software, and to permit persons to whom the Software is
10// furnished to do so, subject to the following conditions:
11//
12// The above copyright notice and this permission notice shall be included in
13// all copies or substantial portions of the Software.
14//
15// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21// IN THE SOFTWARE.
22//-----------------------------------------------------------------------------
23
24#include "gfx/gfxResource.h"
25#include "gfx/gfxDevice.h"
26
27GFXResource::GFXResource()
28{
29   mPrevResource = mNextResource = NULL;
30   mOwningDevice = NULL;
31   mFlagged = false;
32}
33
34GFXResource::~GFXResource()
35{
36   // Make sure we're not the head of the list and referencd on the device.
37   if(mOwningDevice && mOwningDevice->mResourceListHead == this)
38   {
39      AssertFatal(mPrevResource == NULL, 
40         "GFXResource::~GFXResource - head of list but have a previous item!");
41      mOwningDevice->mResourceListHead = mNextResource;
42   }
43
44   // Unlink ourselves from the list.
45   if(mPrevResource)
46      mPrevResource->mNextResource = mNextResource;
47   if(mNextResource)
48      mNextResource->mPrevResource = mPrevResource;
49
50   mPrevResource = mNextResource = NULL;
51}
52
53void GFXResource::registerResourceWithDevice( GFXDevice *device )
54{
55   mOwningDevice = device;
56   mNextResource = device->mResourceListHead;
57   device->mResourceListHead = this;
58
59   if(mNextResource)
60      mNextResource->mPrevResource = this;
61}
62