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annotate pytouhou/ui/window.pyx @ 460:ec327e58b477

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Add a context manager to initialize and shut down SDL outside of Window.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Fri, 06 Sep 2013 23:29:19 +0200
parents 1b56d62250ab
children 11708a1d0a1a
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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
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16 from pytouhou.lib.opengl cimport \
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17 (glEnable, glHint, glEnableClientState, GL_TEXTURE_2D, GL_BLEND,
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18 GL_PERSPECTIVE_CORRECTION_HINT, GL_FOG_HINT, GL_NICEST,
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19 GL_COLOR_ARRAY, GL_VERTEX_ARRAY, GL_TEXTURE_COORD_ARRAY)
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20
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21 IF USE_GLEW:
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22 from pytouhou.lib.opengl cimport glewInit
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23
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25 cdef class Clock:
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26 def __init__(self, long fps=-1):
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27 self._target_fps = 0
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28 self._ref_tick = 0
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29 self._ref_frame = 0
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30 self._fps_tick = 0
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31 self._fps_frame = 0
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32 self._rate = 0
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33 self.set_target_fps(fps)
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34
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35
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36 cdef void set_target_fps(self, long fps) nogil:
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37 self._target_fps = fps
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38 self._ref_tick = 0
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39 self._fps_tick = 0
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40
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41
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42 cdef double get_fps(self) nogil:
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43 return self._rate
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44
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46 cdef void tick(self) nogil except *:
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47 current = sdl.get_ticks()
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48
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49 if not self._ref_tick:
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50 self._ref_tick = current
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51 self._ref_frame = 0
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52
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53 if self._fps_frame >= (self._target_fps if self._target_fps > 0 else 60):
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54 self._rate = self._fps_frame * 1000. / (current - self._fps_tick)
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55 self._fps_tick = current
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56 self._fps_frame = 0
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57 # If we are relying on vsync, but vsync doesn't work or is higher
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58 # than 60 fps, limit ourselves to 60 fps.
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59 if self._target_fps < 0 and self._rate > 64.:
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60 self._target_fps = 60
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61
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62 self._ref_frame += 1
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63 self._fps_frame += 1
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64
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65 target_tick = self._ref_tick
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66 if self._target_fps:
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67 target_tick += <long>(self._ref_frame * 1000 / self._target_fps)
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68
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69 if current <= target_tick:
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70 sdl.delay(target_tick - current)
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71 else:
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72 self._ref_tick = current
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73 self._ref_frame = 0
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74
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75
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76
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77 cdef class Window:
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78 def __init__(self, tuple size=None, bint double_buffer=True, long fps_limit=-1,
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79 bint fixed_pipeline=False, bint sound=True):
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80 self.fps_limit = fps_limit
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81 self.use_fixed_pipeline = fixed_pipeline
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82 self.runner = None
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83
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84 sdl.gl_set_attribute(sdl.GL_CONTEXT_MAJOR_VERSION, 2)
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85 sdl.gl_set_attribute(sdl.GL_CONTEXT_MINOR_VERSION, 1)
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86 sdl.gl_set_attribute(sdl.GL_DOUBLEBUFFER, int(double_buffer))
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87 sdl.gl_set_attribute(sdl.GL_DEPTH_SIZE, 24)
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88
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89 self.width, self.height = size if size is not None else (640, 480)
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90
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91 self.win = sdl.Window('PyTouhou',
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92 sdl.WINDOWPOS_CENTERED, sdl.WINDOWPOS_CENTERED,
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93 self.width, self.height,
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94 sdl.WINDOW_OPENGL | sdl.WINDOW_SHOWN)
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95 self.win.gl_create_context()
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96
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97 IF USE_GLEW:
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98 if glewInit() != 0:
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99 raise Exception('GLEW init fail!')
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100
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101 # Initialize OpenGL
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102 glEnable(GL_BLEND)
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103 if self.use_fixed_pipeline:
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104 glEnable(GL_TEXTURE_2D)
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105 glHint(GL_FOG_HINT, GL_NICEST)
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106 glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST)
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107 glEnableClientState(GL_COLOR_ARRAY)
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108 glEnableClientState(GL_VERTEX_ARRAY)
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109 glEnableClientState(GL_TEXTURE_COORD_ARRAY)
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110
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111 self.clock = Clock(self.fps_limit)
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112
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113
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114 cdef void set_size(self, int width, int height) nogil:
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115 self.win.set_window_size(width, height)
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116
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117
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118 cpdef set_runner(self, runner=None):
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119 self.runner = runner
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120 if runner is not None:
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121 runner.start()
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122
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123
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124 cpdef run(self):
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125 try:
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126 while self.run_frame():
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127 pass
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128 finally:
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129 self.runner.finish()
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130
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131
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132 cdef bint run_frame(self) except? False:
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133 cdef bint running = False
6864a38b2413 Make pytouhou.lib.sdl cimportable, and convert pytouhou.ui.window.* to extension types.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 452
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134 if self.runner is not None:
422
52829ebe2561 Refactor window management in its own class.
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135 running = self.runner.update()
52829ebe2561 Refactor window management in its own class.
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136 self.win.gl_swap_window()
52829ebe2561 Refactor window management in its own class.
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137 self.clock.tick()
52829ebe2561 Refactor window management in its own class.
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138 return running
52829ebe2561 Refactor window management in its own class.
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139
52829ebe2561 Refactor window management in its own class.
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140
455
6864a38b2413 Make pytouhou.lib.sdl cimportable, and convert pytouhou.ui.window.* to extension types.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 452
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141 cpdef double get_fps(self):
6864a38b2413 Make pytouhou.lib.sdl cimportable, and convert pytouhou.ui.window.* to extension types.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 452
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142 return self.clock.get_fps()