Mercurial > touhou

annotate pytouhou/ui/window.pyx @ 612:73f134f84c7f

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Request a RGB888 context, since SDL2’s default of RGB332 sucks. On X11/GLX, it will select the first config available, that is the best one, while on EGL it will iterate over them to select the one closest to what the application requested. Of course, anything lower than RGB888 looks bad and we really don’t want that.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Thu, 26 Mar 2015 20:20:37 +0100
parents 3c2f96f1d715
children a6af3ff86612
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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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18 cdef class Clock:
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19 def __init__(self, long fps=-1):
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20 self._target_fps = 0
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21 self._ref_tick = 0
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22 self._ref_frame = 0
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23 self._fps_tick = 0
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24 self._fps_frame = 0
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25 self.fps = 0
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26 self.set_target_fps(fps)
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27
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29 cdef void set_target_fps(self, long fps) nogil:
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30 self._target_fps = fps
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31 self._ref_tick = 0
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32 self._fps_tick = 0
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33
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34
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35 @cython.cdivision(True)
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36 cdef void tick(self) nogil except *:
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37 current = sdl.get_ticks()
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38
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39 if not self._ref_tick:
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40 self._ref_tick = current
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41 self._ref_frame = 0
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42
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43 if self._fps_frame >= (self._target_fps if self._target_fps > 0 else 60):
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44 self.fps = self._fps_frame * 1000. / (current - self._fps_tick)
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45 self._fps_tick = current
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46 self._fps_frame = 0
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47 # If we are relying on vsync, but vsync doesn't work or is higher
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48 # than 60 fps, limit ourselves to 60 fps.
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49 if self._target_fps < 0 and self.fps > 64.:
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50 self._target_fps = 60
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51
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52 self._ref_frame += 1
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53 self._fps_frame += 1
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54
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55 target_tick = self._ref_tick
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56 if self._target_fps > 0:
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57 target_tick += <unsigned long>(self._ref_frame * 1000 / self._target_fps)
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58
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59 if current <= target_tick:
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60 sdl.delay(target_tick - current)
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61 else:
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62 self._ref_tick = current
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63 self._ref_frame = 0
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64
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66
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67 cdef class Runner:
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68 cdef void start(self) except *:
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69 pass
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70
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71 cdef void finish(self) except *:
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72 pass
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73
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74 cpdef bint update(self, bint render) except -1:
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75 return False
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76
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78
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79 cdef class Window:
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80 def __init__(self, backend, int width=640, int height=480, long fps_limit=-1, frameskip=1):
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81 if backend is not None:
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82 self.win = backend.create_window(
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83 'PyTouhou',
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84 sdl.WINDOWPOS_CENTERED, sdl.WINDOWPOS_CENTERED,
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85 width, height,
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86 frameskip)
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87
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88 self.clock = Clock(fps_limit)
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89 self.frame = 0
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90 self.frameskip = frameskip
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91 self.width = width
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92 self.height = height
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93
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94
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95 cdef void set_size(self, int width, int height) nogil:
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96 self.win.set_window_size(width, height)
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97
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98
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99 cpdef set_runner(self, Runner runner=None):
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100 self.runner = runner
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101 if runner is not None:
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102 runner.start()
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103
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104
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105 cpdef run(self):
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106 try:
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107 while self.run_frame():
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108 pass
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109 finally:
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110 if self.runner is not None:
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111 self.runner.finish()
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112
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113
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114 @cython.cdivision(True)
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115 cdef bint run_frame(self) except -1:
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116 cdef bint render = (self.win is not None and
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117 (self.frameskip <= 1 or not self.frame % self.frameskip))
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118
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119 running = False
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120 if self.runner is not None:
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121 running = self.runner.update(render)
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122 if render:
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123 self.win.present()
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124
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125 self.clock.tick()
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126 self.frame += 1
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127
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128 return running
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130
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11708a1d0a1a Make GameRunner inherit from a Runner base class, to bypass Python calls in Window.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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131 cdef double get_fps(self) nogil:
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de778a80820a Optimise Clock a bit more.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 513
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132 return self.clock.fps