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annotate pytouhou/ui/texture.pyx @ 368:71cd4461bb7f

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Minor optimizations
author Thibaut Girka <thib@sitedethib.com>
date Wed, 11 Jul 2012 15:19:44 +0200
parents 98c64ffcbdff
children 45e1a9a37e66
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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 from libc.stdlib cimport malloc, free
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17 import pyglet
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18 from pyglet.gl import (glTexParameteri,
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19 GL_TEXTURE_MIN_FILTER, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
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20 import os
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23 cdef class TextureManager:
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24 def __init__(self, loader=None):
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25 self.loader = loader
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26 self.textures = {}
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29 def __getitem__(self, key):
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30 if not key in self.textures:
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31 self.textures[key] = self.load_texture(key)
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32 return self.textures[key]
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35 def preload(self, anm_wrapper):
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36 try:
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37 anms = anm_wrapper.anm_files
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38 except AttributeError:
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39 anms = anm_wrapper
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41 for anm in anms:
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42 key = anm.first_name, anm.secondary_name
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43 texture = self[key]
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46 def load_texture(self, key):
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47 cdef bytes data, alpha_data
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48 cdef char *new_data
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49 cdef unsigned int i, width, height, pixels
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51 first_name, secondary_name = key
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53 image_file = pyglet.image.load(first_name, file=self.loader.get_file(os.path.basename(first_name)))
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55 if secondary_name:
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56 alpha_file = pyglet.image.load(secondary_name, file=self.loader.get_file(os.path.basename(secondary_name)))
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57 assert (image_file.width, image_file.height) == (alpha_file.width, image_file.height)
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59 width, height = image_file.width, image_file.height
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60 pixels = width * height
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61 data = image_file.get_data('RGB', width * 3)
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62 alpha_data = alpha_file.get_data('RGB', width * 3)
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64 # TODO: further optimizations
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65 new_data = <char *>malloc(pixels * 4)
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66 for i in range(pixels):
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67 new_data[i*4] = (<char *>data)[i*3]
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68 new_data[i*4+1] = (<char *>data)[i*3+1]
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69 new_data[i*4+2] = (<char *>data)[i*3+2]
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70 new_data[i*4+3] = (<char *>alpha_data)[i*3]
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71 image_file = pyglet.image.ImageData(width, height, 'RGBA', new_data[:(pixels * 4)])
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72 free(new_data)
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74 texture = image_file.get_texture()
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76 glTexParameteri(texture.target, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
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77 glTexParameteri(texture.target, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
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79 return texture
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