你不需要PyOpenGL来完成这个任务。你可以用Pygame和pygame.transform.scale或pygame.transform.scale_by来实现。在pygame.Surface上绘制所需大小的所有内容。在应用程序循环结束时，曲面被缩放并在窗口中显示blit。在下面的示例中，display是缩放曲面。在循环结束时，它被缩放16倍并绘制在窗口中：

的数据

import pygame

pygame.init()
window = pygame.display.set_mode((320, 320))
clock = pygame.time.Clock()

scale = 16
display = pygame.Surface((window.get_width() // scale, window.get_height() // scale))

surf = pygame.image.load('sunglasses.png').convert_alpha()

run = True
while run:
    clock.tick(60)
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False

    display.fill('gray')
    display.blit(surf, surf.get_rect(center = display.get_rect().center))
    
    scaled_disaply = pygame.transform.scale_by(display, scale)
    window.blit(scaled_disaply, (0, 0))
    pygame.display.flip()

pygame.quit()
exit()

字符集
glOrtho是一个传统的OpenGL函数，仅在使用glBegin / glEnd序列或使用固定函数属性进行绘制时才有效。当你想得到复古风格的纹理时，你需要用'GL_NEAREST'参数设置纹理缩小函数和放大函数（参见glTexParameter）。请注意，所有坐标都必须设置在您使用glOrtho指定的空间中。请参见以下基本示例：

的

import pygame
from OpenGL.GL import *

def surfaceToTexture(pygame_surface):
    texture_oj = glGenTextures(1)
    glBindTexture(GL_TEXTURE_2D, texture_oj)
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST)
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST)
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE)
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE)
    rgba_surface = pygame.image.tostring(pygame_surface, 'RGBA')
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, *pygame_surface.get_size(), 0, GL_RGBA, GL_UNSIGNED_BYTE, rgba_surface)
    glBindTexture(GL_TEXTURE_2D, 0)
    return texture_oj

def drawTextrue(texture_obj, rect):
    glEnable(GL_TEXTURE_2D)
    glBindTexture(GL_TEXTURE_2D, texture_obj)
    glBegin(GL_QUADS)
    glTexCoord2f(0, 0); glVertex2f(rect.left, rect.bottom)
    glTexCoord2f(0, 1); glVertex2f(rect.left, rect.top)
    glTexCoord2f(1, 1); glVertex2f(rect.right, rect.top)
    glTexCoord2f(1, 0); glVertex2f(rect.right, rect.bottom)
    glEnd()
    glDisable(GL_TEXTURE_2D)

pygame.init()
window = pygame.display.set_mode((320, 320), pygame.OPENGL | pygame.DOUBLEBUF | pygame.OPENGLBLIT)
clock = pygame.time.Clock()

surf = pygame.image.load('sunglasses.png').convert_alpha()
surf_rect = surf.get_rect()
surf_tecture = surfaceToTexture(surf)

scale = 16
run = True
while run:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False

    width = window.get_width() // scale
    height = window.get_height() // scale

    glMatrixMode(GL_PROJECTION)
    glLoadIdentity()
    glOrtho(0, width, 0, height, -1, 1)
    glMatrixMode(GL_MODELVIEW)
    glLoadIdentity()

    glClearColor(0.5, 0.5, 0.5, 1)
    glClear(GL_COLOR_BUFFER_BIT)

    glDisable(GL_DEPTH_TEST)
    glEnable(GL_BLEND)
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)

    surf_rect.center = (width // 2, height // 2)
    drawTextrue(surf_tecture, surf_rect)

    pygame.display.flip()
    clock.tick(100)

pygame.quit()
exit()

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