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/* Copyright 2015-2019 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 "StringTools.h"
using namespace Diligent;
namespace Diligent
{
EImageFileFormat CreateImageFromFile(const Char* FilePath,
Image** ppImage,
IDataBlob** ppRawData)
{
EImageFileFormat ImgFileFormat = EImageFileFormat::unknown;
try
{
RefCntAutoPtr<BasicFileStream> pFileStream(MakeNewRCObj<BasicFileStream>()(FilePath, EFileAccessMode::Read));
if(!pFileStream->IsValid())
LOG_ERROR_AND_THROW("Failed to open image file \"", FilePath, '\"');
RefCntAutoPtr<IDataBlob> pFileData(MakeNewRCObj<DataBlobImpl>()(0));
pFileStream->Read(pFileData);
ImgFileFormat = Image::GetFileFormat(reinterpret_cast<Uint8*>(pFileData->GetDataPtr()), pFileData->GetSize());
if (ImgFileFormat == EImageFileFormat::unknown)
{
LOG_WARNING_MESSAGE("Unable to derive image format from the header for file \"", FilePath, "\". Trying to analyze extension.");
// Try to use extension to derive format
auto *pDotPos = strrchr(FilePath, '.');
if (pDotPos == nullptr)
LOG_ERROR_AND_THROW("Unable to recognize file format: file name \"", FilePath, "\" does not contain extension");
auto *pExtension = pDotPos + 1;
if (*pExtension == 0)
LOG_ERROR_AND_THROW("Unable to recognize file format: file name \"", FilePath, "\" contain empty extension");
String Extension = StrToLower(pExtension);
if (Extension == "png")
ImgFileFormat = EImageFileFormat::png;
else if (Extension == "jpeg" || Extension == "jpg")
ImgFileFormat = EImageFileFormat::jpeg;
else if (Extension == "tiff" || Extension == "tif")
ImgFileFormat = EImageFileFormat::tiff;
else if (Extension == "dds")
ImgFileFormat = EImageFileFormat::dds;
else if (Extension == "ktx")
ImgFileFormat = EImageFileFormat::ktx;
else
LOG_ERROR_AND_THROW("Unsupported file format ", Extension);
}
if (ImgFileFormat == EImageFileFormat::png ||
ImgFileFormat == EImageFileFormat::jpeg ||
ImgFileFormat == EImageFileFormat::tiff)
{
ImageLoadInfo ImgLoadInfo;
ImgLoadInfo.Format = ImgFileFormat;
Image::CreateFromDataBlob(pFileData, ImgLoadInfo, ppImage);
}
else
{
*ppRawData = pFileData.Detach();
}
}
catch (std::runtime_error &err)
{
LOG_ERROR("Failed to create image from file: ", err.what());
}
return ImgFileFormat;
}
void CreateTextureFromFile(const Char* FilePath,
const TextureLoadInfo& TexLoadInfo,
IRenderDevice* pDevice,
ITexture** ppTexture )
{
RefCntAutoPtr<Image> pImage;
RefCntAutoPtr<IDataBlob> pRawData;
auto ImgFmt = CreateImageFromFile( FilePath, &pImage, &pRawData );
if (pImage)
CreateTextureFromImage( pImage, TexLoadInfo, pDevice, ppTexture );
else if (pRawData)
{
if (ImgFmt == EImageFileFormat::dds)
CreateTextureFromDDS( pRawData, TexLoadInfo, pDevice, ppTexture );
else if (ImgFmt == EImageFileFormat::ktx)
CreateTextureFromKTX( pRawData, TexLoadInfo, pDevice, ppTexture );
else
UNEXPECTED("Unexpected format");
}
}
}
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