utils.py

from OpenGL.GL import *
from PIL import Image
import numpy as np


def sizeof(x: np.array) -> int:
    return x.size * x.itemsize


def create_texture(texturePath: str):
    texture = glGenTextures(1)
    glBindTexture(GL_TEXTURE_2D, texture)

    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)

    tex = Image.open(texturePath, mode='r')
    img_data = np.array(list(tex.getdata()), np.uint8)
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, tex.width, tex.height, 0,
                 GL_RGB, GL_UNSIGNED_BYTE, img_data)
    glGenerateMipmap(GL_TEXTURE_2D)
    glBindTexture(GL_TEXTURE_2D, 0)  # Unbind texture

    return texture