source: OGRE/trunk/ogrenew/OgreMain/src/OgreRenderTexture.cpp @ 692

Revision 692, 3.8 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 "OgreStableHeaders.h"
26
27#include "OgreRenderTexture.h"
28#include "OgreException.h"
29#include "OgreHardwarePixelBuffer.h"
30#include "OgreImage.h"
31#include "OgreImageCodec.h"
32
33namespace Ogre
34{
35
36    //-----------------------------------------------------------------------------
37        RenderTexture::RenderTexture(HardwarePixelBuffer *buffer, size_t zoffset):
38                mBuffer(buffer), mZOffset(zoffset)
39    {
40        mPriority = OGRE_REND_TO_TEX_RT_GROUP;
41                mWidth = mBuffer->getWidth();
42                mHeight = mBuffer->getHeight();
43        mColourDepth = Ogre::PixelUtil::getNumElemBits(mBuffer->getFormat());
44    }
45    RenderTexture::~RenderTexture()
46    {
47                mBuffer->_clearSliceRTT(0);
48    }
49
50        void RenderTexture::writeContentsToFile( const String & filename )
51    {
52                // copyToMemory
53        ImageCodec::ImageData *imgData = new ImageCodec::ImageData();
54       
55        imgData->width = mWidth;
56        imgData->height = mHeight;
57                imgData->depth = 1;
58        imgData->format = PF_BYTE_RGBA;
59                size_t size = imgData->width * imgData->height * 4;
60
61        // Allocate buffer
62        uchar* pBuffer = new uchar[size];
63
64        // Read pixels
65        mBuffer->blitToMemory(
66                        Box(0,0,mZOffset,mWidth,mHeight,mZOffset+1),
67                        PixelBox(mWidth, mHeight, 1, imgData->format, pBuffer)
68                );
69
70        // Wrap buffer in a chunk
71        MemoryDataStreamPtr stream(new MemoryDataStream(
72            pBuffer, size, false));
73
74        // Get codec
75        size_t pos = filename.find_last_of(".");
76            String extension;
77        if( pos == String::npos )
78            OGRE_EXCEPT(
79                Exception::ERR_INVALIDPARAMS,
80            "Unable to determine image type for '" + filename + "' - invalid extension.",
81                "GLRenderTexture::writeContentsToFile" );
82
83        while( pos != filename.length() - 1 )
84            extension += filename[++pos];
85
86        // Get the codec
87        Codec * pCodec = Codec::getCodec(extension);
88
89        // Write out
90        Codec::CodecDataPtr codecDataPtr(imgData);
91        pCodec->codeToFile(stream, filename, codecDataPtr);
92
93                delete [] pBuffer;
94    }
95        //-----------------------------------------------------------------------------
96        MultiRenderTarget::MultiRenderTarget(const String &name)
97    {
98        mPriority = OGRE_REND_TO_TEX_RT_GROUP;
99                mName = name;
100                /// Width and height is unknown with no targets attached
101                mWidth = mHeight = 0;
102    }
103        //-----------------------------------------------------------------------------
104        void MultiRenderTarget::writeContentsToFile( const String & filename )
105        {
106                OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
107                                "Cannot write MultiRenderTargets to disk",
108                "MultiRenderTarget::writeContentsToFile");
109        }
110
111}
Note: See TracBrowser for help on using the repository browser.