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annotate pytouhou/opengl/texture.py @ 68:a2459defd4b6

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Minor cleanup
author Thibaut Girka <thib@sitedethib.com>
date Fri, 26 Aug 2011 22:53:15 +0200
parents ab826bc29aa2
children fc0294c745b6
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ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
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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, archive):
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27 self.archive = archive
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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, anms):
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37 for anm in anms:
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38 key = anm.first_name, anm.secondary_name
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39 texture = self[key]
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42 def set_archive(self, archive):
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43 self.archive = archive
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45
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46 def load_texture(self, key):
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47 first_name, secondary_name = key
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48
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49 image_file = BytesIO(self.archive.extract(os.path.basename(first_name)))
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50 textureSurface = pygame.image.load(image_file).convert_alpha()
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52 if secondary_name:
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53 alpha_image_file = BytesIO(self.archive.extract(os.path.basename(secondary_name)))
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54 alphaSurface = pygame.image.load(alpha_image_file)
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55 assert textureSurface.get_size() == alphaSurface.get_size()
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56 for x in range(alphaSurface.get_width()):
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57 for y in range(alphaSurface.get_height()):
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58 r, g, b, a = textureSurface.get_at((x, y))
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59 color2 = alphaSurface.get_at((x, y))
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60 textureSurface.set_at((x, y), (r, g, b, color2[0]))
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62 textureData = pygame.image.tostring(textureSurface, 'RGBA', 1)
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64 width = textureSurface.get_width()
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65 height = textureSurface.get_height()
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67 texture = glGenTextures(1)
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68 glBindTexture(GL_TEXTURE_2D, texture)
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70 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA,
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71 GL_UNSIGNED_BYTE, textureData)
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73 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
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74 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
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76 return texture
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