texture_loader.cpp

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#include "texture_loader.h"
 
GLuint loadTexture(const char *filename)
{
  GLuint textureID;
  int width, height, nrChannels;
 
  // Load image using STB image library
  unsigned char *data = stbi_load(filename, &width, &height, &nrChannels, 0);
  if (data)
  {
    // Generate and bind texture
    glGenTextures(1, &textureID);
    glBindTexture(GL_TEXTURE_2D, textureID);
 
    // Set texture parameters and upload texture data
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
    glGenerateMipmap(GL_TEXTURE_2D);
 
    // Free image data
    stbi_image_free(data);
  }
  else
  {
    std::cerr << "Failed to load texture: " << filename << std::endl;
  }
 
  // Set texture wrapping and filtering parameters
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 
  return textureID;
};