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62 lines
2.1 KiB
62 lines
2.1 KiB
#ifndef IGL_OPENGL_GLFW_MAP_TEXTURE_H
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#define IGL_OPENGL_GLFW_MAP_TEXTURE_H
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#include "../../igl_inline.h"
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#include <Eigen/Core>
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#include <vector>
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namespace igl
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{
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namespace opengl
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{
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namespace glfw
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{
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/// Given a mesh (V,F) in [0,1]² and new positions (U) and a texture image
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/// (in_data), _render_ a new image (out_data) of the same size.
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/// @param[in] V #V by 2 list of undeformed mesh vertex positions ∈ [0,1]²
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/// @param[in] F #F by 3 list of mesh triangle indices into V
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/// @param[in] U #U by 2 list of deformed vertex positions ∈ [0,1]²
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/// @param[in] in_data w*h*nc array of color values, channels, then columns, then
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/// rows (e.g., what stbi_image returns and expects)
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/// @param[in] w width
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/// @param[in] h height
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/// @param[in] nc number of channels
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/// @param[out] out_data h*w*nc list of output colors in same order as input
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/// @param[out] out_w width of output image
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/// @param[out] out_h height of output image
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/// @param[out] out_nc number of channels of output image
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///
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/// \pre Seems like w,h should be equal.
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template <typename DerivedV, typename DerivedF, typename DerivedU>
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IGL_INLINE bool map_texture(
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const Eigen::MatrixBase<DerivedV> & _V,
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const Eigen::MatrixBase<DerivedF> & _F,
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const Eigen::MatrixBase<DerivedU> & _U,
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const unsigned char * in_data,
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const int w,
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const int h,
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const int nc,
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std::vector<unsigned char> & out_data,
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int & out_w,
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int & out_h,
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int & out_nc);
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/// \overload
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template <typename DerivedV, typename DerivedF, typename DerivedU>
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IGL_INLINE bool map_texture(
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const Eigen::MatrixBase<DerivedV> & V,
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const Eigen::MatrixBase<DerivedF> & F,
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const Eigen::MatrixBase<DerivedU> & U,
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const unsigned char * in_data,
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const int w,
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const int h,
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const int nc,
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std::vector<unsigned char> & out_data);
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}
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}
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "map_texture.cpp"
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#endif
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#endif
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