// This file is part of libigl, a simple c++ geometry processing library.
// 
// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
// 
// This Source Code Form is subject to the terms of the Mozilla Public License 
// v. 2.0. If a copy of the MPL was not distributed with this file, You can 
// obtain one at http://mozilla.org/MPL/2.0/.
#ifndef IGL_CREATE_SHADER_PROGRAM_H
#define IGL_CREATE_SHADER_PROGRAM_H

#ifndef IGL_NO_OPENGL
#include "igl_inline.h"
#include <string>
#include <map>

#include "OpenGL_convenience.h"

namespace igl
{
  // Create a shader program with a vertex and fragments shader loading from
  // source strings and vertex attributes assigned from a map before linking the
  // shaders to the program, making it ready to use with glUseProgram(id)
  // Inputs:
  //   vert_source  string containing source code of vertex shader
  //   frag_source  string containing source code of fragment shader
  //   attrib  map containing table of vertex attribute strings add their
  //   correspondingly ids (generated previously using glBindAttribLocation)
  // Outputs:
  //   id  index id of created shader, set to 0 on error
  // Returns true on success, false on error
  //
  // Note: Caller is responsible for making sure that current value of id is not
  // leaking a shader (since it will be overwritten)
  //
  // See also: destroy_shader_program
  IGL_INLINE bool create_shader_program(
    const std::string vert_source,
    const std::string frag_source,
    const std::map<std::string,GLuint> attrib,
    GLuint & id);
}

#ifdef IGL_HEADER_ONLY
#  include "create_shader_program.cpp"
#endif

#endif
#endif