annotate pytouhou/opengl/texture.py @ 110:3ac41b966fed

Add writing support to pytouhou.formats.std!
author Thibaut Girka <thib@sitedethib.com>
date Tue, 06 Sep 2011 16:40:32 +0200
parents ac2e5e1c2c3c
children fad7b44cebf2
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1 # -*- encoding: utf-8 -*-
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2 ##
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3 ## Copyright (C) 2011 Thibaut Girka <thib@sitedethib.com>
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4 ##
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5 ## This program is free software; you can redistribute it and/or modify
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6 ## it under the terms of the GNU General Public License as published
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7 ## by the Free Software Foundation; version 3 only.
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8 ##
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9 ## This program is distributed in the hope that it will be useful,
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10 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 ## GNU General Public License for more details.
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13 ##
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15 import pygame
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16 import os
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17 from io import BytesIO
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18
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19 import OpenGL
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20 OpenGL.FORWARD_COMPATIBLE_ONLY = True
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21 from OpenGL.GL import *
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22 from OpenGL.GLU import *
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25 class TextureManager(object):
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26 def __init__(self, loader=None):
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27 self.loader = loader
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28 self.textures = {}
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30 def __getitem__(self, key):
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31 if not key in self.textures:
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32 self.textures[key] = self.load_texture(key)
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33 return self.textures[key]
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36 def preload(self, anm_wrapper):
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37 try:
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38 anms = anm_wrapper.anm_files
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39 except AttributeError:
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40 anms = anm_wrapper
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42 for anm in anms:
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43 key = anm.first_name, anm.secondary_name
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44 texture = self[key]
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47 def load_texture(self, key):
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48 first_name, secondary_name = key
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50 image_file = self.loader.get_file(os.path.basename(first_name))
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51 textureSurface = pygame.image.load(image_file).convert_alpha()
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53 if secondary_name:
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54 alpha_image_file = self.loader.get_file(os.path.basename(secondary_name))
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55 alphaSurface = pygame.image.load(alpha_image_file)
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56 assert textureSurface.get_size() == alphaSurface.get_size()
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57 for x in range(alphaSurface.get_width()):
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58 for y in range(alphaSurface.get_height()):
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59 r, g, b, a = textureSurface.get_at((x, y))
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60 color2 = alphaSurface.get_at((x, y))
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61 textureSurface.set_at((x, y), (r, g, b, color2[0]))
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63 textureData = pygame.image.tostring(textureSurface, 'RGBA', 1)
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65 width = textureSurface.get_width()
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66 height = textureSurface.get_height()
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68 texture = glGenTextures(1)
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69 glBindTexture(GL_TEXTURE_2D, texture)
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71 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA,
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72 GL_UNSIGNED_BYTE, textureData)
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74 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
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75 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
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77 return texture
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