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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkGLTFTexture.h"
#include "vtkGLTFDocumentLoader.h"
#include "vtkImageData.h"
#include "vtkObjectFactory.h"
#include "vtkTexture.h"
VTK_ABI_NAMESPACE_BEGIN
//------------------------------------------------------------------------------
vtkStandardNewMacro(vtkGLTFTexture);
//------------------------------------------------------------------------------
vtkSmartPointer<vtkTexture> vtkGLTFTexture::GetVTKTexture()
{
vtkNew<vtkTexture> texture;
texture->SetColorModeToDirectScalars();
texture->SetBlendingMode(vtkTexture::VTK_TEXTURE_BLENDING_MODE_MODULATE);
// Approximate filtering settings
if (this->Sampler.MinFilter == vtkGLTFDocumentLoader::Sampler::FilterType::NEAREST ||
this->Sampler.MinFilter == vtkGLTFDocumentLoader::Sampler::FilterType::LINEAR)
{
texture->MipmapOff();
}
else
{
texture->MipmapOn();
}
if (this->Sampler.WrapS == vtkGLTFDocumentLoader::Sampler::WrapType::CLAMP_TO_EDGE ||
this->Sampler.WrapT == vtkGLTFDocumentLoader::Sampler::WrapType::CLAMP_TO_EDGE)
{
texture->RepeatOff();
texture->EdgeClampOn();
}
else if (this->Sampler.WrapS == vtkGLTFDocumentLoader::Sampler::WrapType::REPEAT ||
this->Sampler.WrapT == vtkGLTFDocumentLoader::Sampler::WrapType::REPEAT)
{
texture->RepeatOn();
texture->EdgeClampOff();
}
else
{
vtkWarningWithObjectMacro(nullptr, "Mirrored texture wrapping is not supported!");
}
if (this->Sampler.MinFilter == vtkGLTFDocumentLoader::Sampler::FilterType::LINEAR ||
this->Sampler.MinFilter == vtkGLTFDocumentLoader::Sampler::FilterType::LINEAR_MIPMAP_NEAREST ||
this->Sampler.MinFilter == vtkGLTFDocumentLoader::Sampler::FilterType::NEAREST_MIPMAP_LINEAR ||
this->Sampler.MinFilter == vtkGLTFDocumentLoader::Sampler::FilterType::LINEAR_MIPMAP_LINEAR ||
this->Sampler.MagFilter == vtkGLTFDocumentLoader::Sampler::FilterType::LINEAR ||
this->Sampler.MagFilter == vtkGLTFDocumentLoader::Sampler::FilterType::LINEAR_MIPMAP_NEAREST ||
this->Sampler.MagFilter == vtkGLTFDocumentLoader::Sampler::FilterType::NEAREST_MIPMAP_LINEAR ||
this->Sampler.MagFilter == vtkGLTFDocumentLoader::Sampler::FilterType::LINEAR_MIPMAP_LINEAR)
{
texture->InterpolateOn();
}
texture->SetInputData(this->Image);
return texture;
}
//------------------------------------------------------------------------------
void vtkGLTFTexture::PrintSelf(ostream& os, vtkIndent indent)
{
// XXX(c++23) AppleClang 11 and older complain `error: use of overloaded operator '<<' is
// ambiguous` And so these enums are cast to their raw integer equivalents.
using FilterType = typename std::underlying_type<GLTFSampler::FilterType>::type;
using WrapType = typename std::underlying_type<GLTFSampler::WrapType>::type;
this->Superclass::PrintSelf(os, indent);
os << indent << "MagFilter: " << static_cast<FilterType>(this->Sampler.MagFilter) << "\n"
<< indent << "MinFilter: " << static_cast<FilterType>(this->Sampler.MinFilter) << "\n"
<< indent << "WrapS: " << static_cast<WrapType>(this->Sampler.WrapS) << "\n"
<< indent << "WrapT: " << static_cast<WrapType>(this->Sampler.WrapT) << "\n"
<< indent << "Image: " << this->Image << "\n";
}
VTK_ABI_NAMESPACE_END
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