mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 18:45:43 +00:00
23aeff054e
Previously it used a version of the decode routines from lodepng inside the decode functionality.
38 lines
1.2 KiB
C++
38 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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#ifndef vtk_m_rendering_DecodePNG_h
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#define vtk_m_rendering_DecodePNG_h
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#include <vtkm/Types.h>
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#include <vtkm/rendering/vtkm_rendering_export.h>
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#include <vector>
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namespace vtkm
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{
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namespace rendering
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{
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/// Decodes a PNG file buffer in memory, into a raw pixel buffer
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/// Output is RGBA 32-bit (8 bit per channel) color format
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/// no matter what color type the original PNG image had. This gives predictable,
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/// usable data from any random input PNG.
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///
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VTKM_RENDERING_EXPORT
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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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} // vtkm::rendering
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#endif //vtk_m_rendering_DecodePNG_h
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