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/* Copyright 2015-2016 Egor Yusov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS.
*
* In no event and under no legal theory, whether in tort (including negligence),
* contract, or otherwise, unless required by applicable law (such as deliberate
* and grossly negligent acts) or agreed to in writing, shall any Contributor be
* liable for any damages, including any direct, indirect, special, incidental,
* or consequential damages of any character arising as a result of this License or
* out of the use or inability to use the software (including but not limited to damages
* for loss of goodwill, work stoppage, computer failure or malfunction, or any and
* all other commercial damages or losses), even if such Contributor has been advised
* of the possibility of such damages.
*/
#include "pch.h"
#include "TextureUtilities.h"
#include "Errors.h"
#include "TextureLoader.h"
#include "Image.h"
#include "BasicFileStream.h"
#include "RefCntAutoPtr.h"
#include "DataBlobImpl.h"
#include <algorithm>
using namespace Diligent;
namespace Diligent
{
void CreateImageFromFile( const Diligent::Char *FilePath,
Image **ppImage,
IDataBlob **ppDDSData)
{
auto *pDotPos = strrchr( FilePath, '.' );
if( pDotPos == nullptr )
LOG_ERROR_AND_THROW( "File path ", FilePath, " does not contain extension" );
auto *pExtension = pDotPos + 1;
if( *pExtension == 0 )
LOG_ERROR_AND_THROW( "File path ", FilePath, " contains empty extension" );
String Extension(pExtension);
std::transform( Extension.begin(), Extension.end(), Extension.begin(), ::tolower );
Diligent::RefCntAutoPtr<BasicFileStream> pFileStream( new BasicFileStream( FilePath, EFileAccessMode::Read ) );
if( Extension == "dds" )
{
VERIFY_EXPR(ppDDSData != nullptr);
*ppDDSData = new DataBlobImpl;
pFileStream->Read(*ppDDSData);
(*ppDDSData)->AddRef();
}
else
{
ImageLoadInfo ImgLoadInfo;
if( Extension == "png" )
ImgLoadInfo.Format = EImageFileFormat::png;
else if( Extension == "jpeg" || Extension == "jpg" )
ImgLoadInfo.Format = EImageFileFormat::jpeg;
else if( Extension == "tiff" || Extension == "tif" )
ImgLoadInfo.Format = EImageFileFormat::tiff;
else
LOG_ERROR_AND_THROW( "Unsupported file format ", Extension );
*ppImage = new Image(pFileStream, ImgLoadInfo);
(*ppImage)->AddRef();
}
}
void CreateTextureFromFile( const Diligent::Char *FilePath,
const TextureLoadInfo& TexLoadInfo,
IRenderDevice *pDevice,
ITexture **ppTexture )
{
RefCntAutoPtr<Image> pImage;
RefCntAutoPtr<IDataBlob> pDDSData;
CreateImageFromFile( FilePath, &pImage, &pDDSData );
if( pImage )
CreateTextureFromImage( pImage, TexLoadInfo, pDevice, ppTexture );
else if(pDDSData)
CreateTextureFromDDS( pDDSData, TexLoadInfo, pDevice, ppTexture );
}
}
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