Function lf_load_texture_resized

leif.c:1933–1971

}

LfTexture lf_load_texture_resized(const char* filepath, bool flip, LfTextureFiltering filter, uint32_t w, uint32_t h) {
  LfTexture tex; 
  int32_t width, height, channels;
  stbi_uc* image_data = stbi_load(filepath, &width, &height, &channels, 0);

  unsigned char* downscaled_image = (unsigned char*)malloc(sizeof(unsigned char) * w * h * channels);

  // Resize the original image to the downscaled size
  stbir_resize_uint8_linear(image_data, width, height, 0, downscaled_image, w, h, 0,(stbir_pixel_layout)channels);

  glCreateTextures(GL_TEXTURE_2D, 1, &tex.id);
  glBindTexture(GL_TEXTURE_2D, tex.id);

  switch(filter) {
    case LF_TEX_FILTER_LINEAR:
      glTextureParameteri(tex.id, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
      glTextureParameteri(tex.id, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
      break;
    case LF_TEX_FILTER_NEAREST:
      glTextureParameteri(tex.id, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
      glTextureParameteri(tex.id, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
      break;
  }

  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB, GL_UNSIGNED_BYTE, downscaled_image);
  glGenerateMipmap(GL_TEXTURE_2D);

  stbi_image_free(image_data);
  free(downscaled_image);

  tex.width = width;
  tex.height = height;

  return tex;

}

LfTexture lf_load_texture_resized_factor(const char* filepath, bool flip, LfTextureFiltering filter, float wfactor, float hfactor) {
  // Loading the texture into memory with stb_image