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annotate pytouhou/ui/texture.pyx @ 455:6864a38b2413

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Make pytouhou.lib.sdl cimportable, and convert pytouhou.ui.window.* to extension types.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Mon, 02 Sep 2013 22:16:38 +0200
parents d56536ef28e8
children cae1ae9de430
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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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14
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15 from pytouhou.lib.opengl cimport \
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16 (glTexParameteri, GL_TEXTURE_MIN_FILTER, GL_TEXTURE_MAG_FILTER,
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17 GL_LINEAR, GL_BGRA, GL_RGBA, GL_RGB, GL_LUMINANCE, GL_UNSIGNED_BYTE,
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18 GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_SHORT_4_4_4_4_REV,
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19 glGenTextures, glBindTexture, glTexImage2D, GL_TEXTURE_2D, GLuint,
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20 glDeleteTextures)
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22 from pytouhou.lib.sdl cimport load_png, create_rgb_surface
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23 from pytouhou.formats.thtx import Texture #TODO: perhaps define that elsewhere?
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24
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25 import os
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28 class TextureId(int):
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29 def __del__(self):
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30 cdef GLuint texture = self
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31 glDeleteTextures(1, &texture)
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32 self.renderer.remove_texture(self)
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35 class TextureManager(object):
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36 def __init__(self, loader=None, renderer=None):
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37 self.loader = loader
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38 self.renderer = renderer
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41 def load(self, anm_list):
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42 for anm in sorted(anm_list, key=lambda x: x[0].first_name.endswith('ascii.png')):
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43 for entry in anm:
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44 if not hasattr(entry, 'texture'):
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45 texture = decode_png(self.loader, entry.first_name, entry.secondary_name)
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46 entry.texture = load_texture(texture)
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47 elif not isinstance(entry.texture, TextureId):
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48 entry.texture = load_texture(entry.texture)
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49 self.renderer.add_texture(entry.texture)
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50 entry.texture.renderer = self.renderer
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51
cc864aadc733 Preload enemy and background textures
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52
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53 cdef decode_png(loader, first_name, secondary_name):
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54 image_file = load_png(loader.get_file(os.path.basename(first_name)))
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55 width, height = image_file.surface.w, image_file.surface.h
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57 # Support only 32 bits RGBA. Paletted surfaces are awful to work with.
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58 #TODO: verify it doesn’t blow up on big-endian systems.
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59 new_image = create_rgb_surface(width, height, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000)
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60 new_image.blit(image_file)
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62 if secondary_name:
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63 alpha_file = load_png(loader.get_file(os.path.basename(secondary_name)))
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64 assert (width == alpha_file.surface.w and height == alpha_file.surface.h)
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66 new_alpha_file = create_rgb_surface(width, height, 24)
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67 new_alpha_file.blit(alpha_file)
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69 new_image.set_alpha(new_alpha_file)
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71 return Texture(width, height, -4, new_image.pixels)
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72
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73
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74 cdef load_texture(thtx):
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75 cdef GLuint texture
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76
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77 if thtx.fmt == 1:
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78 format_ = GL_BGRA
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79 type_ = GL_UNSIGNED_BYTE
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80 composants = GL_RGBA
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81 elif thtx.fmt == 3:
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82 format_ = GL_RGB
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83 type_ = GL_UNSIGNED_SHORT_5_6_5
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84 composants = GL_RGB
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85 elif thtx.fmt == 5:
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86 format_ = GL_BGRA
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87 type_ = GL_UNSIGNED_SHORT_4_4_4_4_REV
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88 composants = GL_RGBA
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89 elif thtx.fmt == 7:
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90 format_ = GL_LUMINANCE
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91 type_ = GL_UNSIGNED_BYTE
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92 composants = GL_LUMINANCE
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93 elif thtx.fmt == -4: #XXX: non-standard
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94 format_ = GL_RGBA
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95 type_ = GL_UNSIGNED_BYTE
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96 composants = GL_RGBA
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97 else:
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98 raise Exception('Unknown texture type')
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99
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100 glGenTextures(1, &texture)
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101 glBindTexture(GL_TEXTURE_2D, texture)
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102 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
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103 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
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104
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105 glTexImage2D(GL_TEXTURE_2D, 0,
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106 composants,
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107 thtx.width, thtx.height,
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108 0,
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109 format_, type_,
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110 <char*>thtx.data)
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111
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112 return TextureId(texture)