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95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
/*
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** texture.cpp
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** The base texture class
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**
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**---------------------------------------------------------------------------
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** Copyright 2004-2007 Randy Heit
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** Copyright 2006-2018 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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**
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*/
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#include "memarena.h"
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#include "bitmap.h"
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#include "image.h"
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#include "files.h"
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#include "cache1d.h"
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#include "imagehelpers.h"
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int FImageSource::NextID;
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//==========================================================================
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//
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//
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//
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//==========================================================================
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typedef FImageSource * (*CreateFunc)(FileReader & file);
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struct TexCreateInfo
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{
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CreateFunc TryCreate;
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};
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FImageSource *PNGImage_TryCreate(FileReader &);
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FImageSource *JPEGImage_TryCreate(FileReader &);
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FImageSource *DDSImage_TryCreate(FileReader &);
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FImageSource *PCXImage_TryCreate(FileReader &);
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FImageSource *TGAImage_TryCreate(FileReader &);
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FImageSource *ArtImage_TryCreate(FileReader &);
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FImageSource *StbImage_TryCreate(FileReader &);
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// Examines the lump contents to decide what type of texture to create,
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// and creates the texture.
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FImageSource * FImageSource::GetImage(const char *name)
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{
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static TexCreateInfo CreateInfo[] = {
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{ PNGImage_TryCreate },
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{ JPEGImage_TryCreate },
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{ DDSImage_TryCreate },
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{ PCXImage_TryCreate },
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{ StbImage_TryCreate },
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{ ArtImage_TryCreate },
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{ nullptr }
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};
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auto data = fileSystem.OpenFileReader(name, 0);
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if (!data.isOpen()) return nullptr;
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for (size_t i = 0; CreateInfo[i].TryCreate; i++)
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{
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auto image = CreateInfo[i].TryCreate(data);
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if (image != nullptr)
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{
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image->Name = name;
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return image;
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}
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}
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return nullptr;
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}
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