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annotate pytouhou/ui/window.pyx @ 537:63440d1e0717

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Fix a segfault happening at exit time on Windows.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sat, 19 Apr 2014 19:03:38 +0200
parents de778a80820a
children aad758aef26d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # -*- encoding: utf-8 -*-
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2 ##
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3 ## Copyright (C) 2013 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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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 cimport cython
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16
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17 IF USE_OPENGL:
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18 from pytouhou.lib.opengl cimport \
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19 (glEnable, glHint, glEnableClientState, GL_TEXTURE_2D, GL_BLEND,
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20 GL_PERSPECTIVE_CORRECTION_HINT, GL_FOG_HINT, GL_NICEST,
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21 GL_COLOR_ARRAY, GL_VERTEX_ARRAY, GL_TEXTURE_COORD_ARRAY)
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22
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23 IF USE_GLEW:
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24 from pytouhou.lib.opengl cimport glewInit
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27 cdef class Clock:
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28 def __init__(self, long fps=-1):
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29 self._target_fps = 0
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30 self._ref_tick = 0
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31 self._ref_frame = 0
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32 self._fps_tick = 0
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33 self._fps_frame = 0
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34 self.fps = 0
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35 self.set_target_fps(fps)
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36
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38 cdef void set_target_fps(self, long fps) nogil:
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39 self._target_fps = fps
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40 self._ref_tick = 0
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41 self._fps_tick = 0
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43
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44 @cython.cdivision(True)
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45 cdef void tick(self) nogil except *:
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46 current = sdl.get_ticks()
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47
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48 if not self._ref_tick:
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49 self._ref_tick = current
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50 self._ref_frame = 0
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51
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52 if self._fps_frame >= (self._target_fps if self._target_fps > 0 else 60):
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53 self.fps = self._fps_frame * 1000. / (current - self._fps_tick)
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54 self._fps_tick = current
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55 self._fps_frame = 0
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56 # If we are relying on vsync, but vsync doesn't work or is higher
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57 # than 60 fps, limit ourselves to 60 fps.
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58 if self._target_fps < 0 and self.fps > 64.:
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59 self._target_fps = 60
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60
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61 self._ref_frame += 1
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62 self._fps_frame += 1
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63
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64 target_tick = self._ref_tick
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65 if self._target_fps > 0:
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66 target_tick += <unsigned long>(self._ref_frame * 1000 / self._target_fps)
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67
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68 if current <= target_tick:
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69 sdl.delay(target_tick - current)
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70 else:
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71 self._ref_tick = current
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72 self._ref_frame = 0
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73
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74
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75
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76 cdef class Runner:
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77 cdef void start(self) except *:
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78 pass
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79
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80 cdef void finish(self) except *:
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81 pass
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82
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83 cdef bint update(self) except *:
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84 return False
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85
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86
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87
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88 cdef class Window:
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89 def __init__(self, bint double_buffer=True, long fps_limit=-1,
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90 bint fixed_pipeline=False, bint sound=True, bint opengl=True):
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91 self.fps_limit = fps_limit
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92 self.use_fixed_pipeline = fixed_pipeline
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93 self.runner = None
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94
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95 flags = sdl.WINDOW_SHOWN
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96
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97 if USE_OPENGL and opengl:
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98 sdl.gl_set_attribute(sdl.GL_CONTEXT_MAJOR_VERSION, 2)
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99 sdl.gl_set_attribute(sdl.GL_CONTEXT_MINOR_VERSION, 1)
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100 sdl.gl_set_attribute(sdl.GL_DOUBLEBUFFER, int(double_buffer))
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101 sdl.gl_set_attribute(sdl.GL_DEPTH_SIZE, 24)
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102
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103 flags |= sdl.WINDOW_OPENGL
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104
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105 #TODO: implement it in the SDL backend too.
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106 if not self.use_fixed_pipeline:
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107 flags |= sdl.WINDOW_RESIZABLE
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108
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109 self.win = sdl.Window('PyTouhou',
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110 sdl.WINDOWPOS_CENTERED, sdl.WINDOWPOS_CENTERED,
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111 640, 480, #XXX
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112 flags)
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113
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114 if USE_OPENGL and opengl:
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115 self.win.gl_create_context()
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116
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117 IF USE_GLEW:
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118 if glewInit() != 0:
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119 raise Exception('GLEW init fail!')
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120
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121 # Initialize OpenGL
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122 glEnable(GL_BLEND)
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123 if self.use_fixed_pipeline:
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124 glEnable(GL_TEXTURE_2D)
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125 glHint(GL_FOG_HINT, GL_NICEST)
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126 glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST)
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127 glEnableClientState(GL_COLOR_ARRAY)
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128 glEnableClientState(GL_VERTEX_ARRAY)
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129 glEnableClientState(GL_TEXTURE_COORD_ARRAY)
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130 else:
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131 self.win.create_renderer(0)
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132
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133 self.clock = Clock(self.fps_limit)
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134
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135
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136 cdef void set_size(self, int width, int height) nogil:
422
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137 self.win.set_window_size(width, height)
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138
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139
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140 cpdef set_runner(self, Runner runner=None):
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141 self.runner = runner
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142 if runner is not None:
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143 runner.start()
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144
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145
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146 cpdef run(self):
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147 try:
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148 while self.run_frame():
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149 pass
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150 finally:
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151 self.runner.finish()
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152
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153
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154 cdef bint run_frame(self) except? False:
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155 cdef bint running = False
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156 if self.runner is not None:
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157 running = self.runner.update()
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158 self.win.present()
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159 self.clock.tick()
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160 return running
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161
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162
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163 cdef double get_fps(self) nogil:
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164 return self.clock.fps