source: OGRE/trunk/ogrenew/RenderSystems/Direct3D9/src/OgreD3D9MultiRenderTarget.cpp @ 692

Revision 692, 3.3 KB checked in by mattausch, 19 years ago (diff)

adding ogre 1.2 and dependencies

RevLine 
[692]1/*
2-----------------------------------------------------------------------------
3This source file is part of OGRE
4    (Object-oriented Graphics Rendering Engine)
5For the latest info, see http://www.ogre3d.org/
6
7Copyright (c) 2000-2005 The OGRE Team
8Also see acknowledgements in Readme.html
9
10This program is free software; you can redistribute it and/or modify it under
11the terms of the GNU Lesser General Public License as published by the Free Software
12Foundation; either version 2 of the License, or (at your option) any later
13version.
14
15This program is distributed in the hope that it will be useful, but WITHOUT
16ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
18
19You should have received a copy of the GNU Lesser General Public License along with
20this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21Place - Suite 330, Boston, MA 02111-1307, USA, or go to
22http://www.gnu.org/copyleft/lesser.txt.
23-----------------------------------------------------------------------------
24*/
25#include "OgreD3D9MultiRenderTarget.h"
26#include "OgreD3D9HardwarePixelBuffer.h"
27#include "OgreException.h"
28#include "OgreLogManager.h"
29#include "OgreStringConverter.h"
30#include "OgreBitwise.h"
31
32namespace Ogre
33{
34        D3D9MultiRenderTarget::D3D9MultiRenderTarget(const String &name):
35                MultiRenderTarget(name)
36        {
37                /// Clear targets
38                for(size_t x=0; x<OGRE_MAX_MULTIPLE_RENDER_TARGETS; ++x)
39                {
40                        targets[x] = 0;
41                }
42        }
43        D3D9MultiRenderTarget::~D3D9MultiRenderTarget()
44        {
45        }
46
47        void D3D9MultiRenderTarget::bindSurface(size_t attachment, RenderTexture *target)
48        {
49                assert(attachment<OGRE_MAX_MULTIPLE_RENDER_TARGETS);
50                /// Get buffer and surface to bind to
51                D3D9HardwarePixelBuffer *buffer = 0;
52                target->getCustomAttribute("BUFFER", &buffer);
53                assert(buffer);
54
55                /// Find first non-null target
56                int y;
57                for(y=0; y<OGRE_MAX_MULTIPLE_RENDER_TARGETS && !targets[y]; ++y) ;
58               
59                if(y!=OGRE_MAX_MULTIPLE_RENDER_TARGETS)
60                {
61                        /// If there is another target bound, compare sizes
62                        if(targets[y]->getWidth() != buffer->getWidth() ||
63                                targets[y]->getHeight() != buffer->getHeight() ||
64                                targets[y]->getFormat() != buffer->getFormat())
65                        {
66                                OGRE_EXCEPT(
67                                        Exception::ERR_INVALIDPARAMS,
68                                        "MultiRenderTarget surfaces are not of same size or pixel format",
69                                        "D3D9MultiRenderTarget::checkAndUpdate"
70                                );
71                        }
72                }
73
74                targets[attachment] = buffer;
75                checkAndUpdate();
76        }
77
78        void D3D9MultiRenderTarget::unbindSurface(size_t attachment)
79        {
80                assert(attachment<OGRE_MAX_MULTIPLE_RENDER_TARGETS);
81                targets[attachment] = 0;
82                checkAndUpdate();
83        }
84
85        void D3D9MultiRenderTarget::getCustomAttribute(const String& name, void *pData)
86    {
87                if(name == "DDBACKBUFFER")
88        {
89            IDirect3DSurface9 ** pSurf = (IDirect3DSurface9 **)pData;
90                        /// Transfer surfaces
91                        for(size_t x=0; x<OGRE_MAX_MULTIPLE_RENDER_TARGETS; ++x)
92                        {
93                                if(targets[x])
94                                        pSurf[x] = targets[x]->getSurface();
95                        }
96                        return;
97        }
98        }
99
100        void D3D9MultiRenderTarget::checkAndUpdate()
101        {
102                if(targets[0])
103                {
104                        mWidth = targets[0]->getWidth();
105                        mHeight = targets[0]->getHeight();
106                }
107                else
108                {
109                        mWidth = 0;
110                        mHeight = 0;
111                }
112        }
113
114
115}
116
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