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annotate pytouhou/ui/opengl/backend.pyx @ 556:c34b23e29d16

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Make the OpenGL flavor and version options work.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Fri, 30 May 2014 16:40:36 +0200
parents 98380e4a0ee5
children 0f2af7552462
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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553
8f51e34d911c Refactor graphics backend selection, to make them fallbackable and optional.
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1 from pytouhou.lib cimport sdl
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2 from pytouhou.lib.sdl cimport Window
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3
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4 from pytouhou.lib.opengl cimport \
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5 (glEnable, glHint, glEnableClientState, GL_TEXTURE_2D, GL_BLEND,
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6 GL_PERSPECTIVE_CORRECTION_HINT, GL_FOG_HINT, GL_NICEST,
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7 GL_COLOR_ARRAY, GL_VERTEX_ARRAY, GL_TEXTURE_COORD_ARRAY)
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8
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9
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10 GameRenderer = None
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11
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12
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13 def init(options):
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14 global flavor, version, major, minor, double_buffer, is_legacy, GameRenderer
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15
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16 flavor_name = options['flavor']
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17 assert flavor_name in ('core', 'es', 'compatibility', 'legacy')
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18 flavor = (sdl.GL_CONTEXT_PROFILE_CORE if flavor_name == 'core' else
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19 sdl.GL_CONTEXT_PROFILE_ES if flavor_name == 'es' else
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20 sdl.GL_CONTEXT_PROFILE_COMPATIBILITY)
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21
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22 version = str(options['version'])
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23 assert len(version) == 3 and version[1] == '.'
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24 major = int(version[0])
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25 minor = int(version[2])
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26
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27 maybe_double_buffer = options['double-buffer']
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28 double_buffer = maybe_double_buffer if maybe_double_buffer is not None else -1
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29
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30 is_legacy = flavor_name == 'legacy'
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31
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32 #TODO: check for framebuffer/renderbuffer support.
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33
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34 from pytouhou.ui.opengl.gamerenderer import GameRenderer
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36
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37 def create_window(title, x, y, width, height):
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38 sdl.gl_set_attribute(sdl.GL_CONTEXT_PROFILE_MASK, flavor)
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39 sdl.gl_set_attribute(sdl.GL_CONTEXT_MAJOR_VERSION, major)
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40 sdl.gl_set_attribute(sdl.GL_CONTEXT_MINOR_VERSION, minor)
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41 sdl.gl_set_attribute(sdl.GL_DEPTH_SIZE, 24)
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42 if double_buffer >= 0:
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43 sdl.gl_set_attribute(sdl.GL_DOUBLEBUFFER, double_buffer)
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44
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45 flags = sdl.WINDOW_SHOWN | sdl.WINDOW_OPENGL
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46
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47 #TODO: legacy can support one of the framebuffer extensions.
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48 if not is_legacy:
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49 flags |= sdl.WINDOW_RESIZABLE
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50
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51 window = Window(title, x, y, width, height, flags)
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52 window.gl_create_context()
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53
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54 # Initialize OpenGL
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55 glEnable(GL_BLEND)
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56 if is_legacy:
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57 glEnable(GL_TEXTURE_2D)
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58 glHint(GL_FOG_HINT, GL_NICEST)
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59 glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST)
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60 glEnableClientState(GL_COLOR_ARRAY)
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61 glEnableClientState(GL_VERTEX_ARRAY)
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62 glEnableClientState(GL_TEXTURE_COORD_ARRAY)
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63
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64 return window