mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-08 13:23:51 +00:00
43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#include <vtkm/io/DecodePNG.h>
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#include <vtkm/cont/Logging.h>
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#include <vtkm/internal/Configure.h>
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VTKM_THIRDPARTY_PRE_INCLUDE
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#include <vtkm/thirdparty/lodepng/vtkmlodepng/lodepng.h>
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VTKM_THIRDPARTY_POST_INCLUDE
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namespace vtkm
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{
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namespace io
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{
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vtkm::UInt32 DecodePNG(std::vector<unsigned char>& out_image,
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unsigned long& image_width,
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unsigned long& image_height,
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const unsigned char* in_png,
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std::size_t in_size)
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{
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using namespace vtkm::png;
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constexpr std::size_t bitdepth = 8;
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vtkm::UInt32 iw = 0;
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vtkm::UInt32 ih = 0;
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auto retcode = lodepng::decode(out_image, iw, ih, in_png, in_size, LCT_RGBA, bitdepth);
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image_width = iw;
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image_height = ih;
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return retcode;
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}
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}
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} // namespace vtkm::io
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