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annotate pytouhou/opengl/texture.py @ 42:1b0ca2fb89f9

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Refactor ECL parsing/etc.
author Thibaut Girka <thib@sitedethib.com>
date Thu, 18 Aug 2011 22:11:39 +0200
parents cc864aadc733
children ab826bc29aa2
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1 import pygame
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2 import os
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3 from io import BytesIO
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5 import OpenGL
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6 OpenGL.FORWARD_COMPATIBLE_ONLY = True
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7 from OpenGL.GL import *
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8 from OpenGL.GLU import *
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11 class TextureManager(object):
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12 def __init__(self, archive):
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13 self.archive = archive
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14 self.textures = {}
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16 def __getitem__(self, key):
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17 if not key in self.textures:
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18 self.textures[key] = self.load_texture(key)
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19 return self.textures[key]
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22 def preload(self, anms):
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23 for anm in anms:
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24 key = anm.first_name, anm.secondary_name
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25 texture = self[key]
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28 def set_archive(self, archive):
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29 self.archive = archive
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32 def load_texture(self, key):
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33 first_name, secondary_name = key
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35 image_file = BytesIO(self.archive.extract(os.path.basename(first_name)))
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36 textureSurface = pygame.image.load(image_file).convert_alpha()
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38 if secondary_name:
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39 alpha_image_file = BytesIO(self.archive.extract(os.path.basename(secondary_name)))
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40 alphaSurface = pygame.image.load(alpha_image_file)
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41 assert textureSurface.get_size() == alphaSurface.get_size()
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42 for x in range(alphaSurface.get_width()):
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43 for y in range(alphaSurface.get_height()):
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44 r, g, b, a = textureSurface.get_at((x, y))
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45 color2 = alphaSurface.get_at((x, y))
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46 textureSurface.set_at((x, y), (r, g, b, color2[0]))
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48 textureData = pygame.image.tostring(textureSurface, 'RGBA', 1)
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50 width = textureSurface.get_width()
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51 height = textureSurface.get_height()
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52
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53 texture = glGenTextures(1)
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54 glBindTexture(GL_TEXTURE_2D, texture)
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56 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA,
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57 GL_UNSIGNED_BYTE, textureData)
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59 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
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60 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
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62 return texture
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