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comparison pytouhou/ui/opengl/backend.pyx @ 585:e0166cda75d5

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Use primitive-restart to lower the size of our ibo, if supported.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Wed, 08 Oct 2014 14:28:37 +0200
parents 47cf4e3d159d
children 6c9d8a3d853f
comparison
equal deleted inserted replaced
584:538b52aafbca 585:e0166cda75d5
4 from pytouhou.lib.opengl cimport \ 4 from pytouhou.lib.opengl cimport \
5 (glEnable, glHint, glEnableClientState, GL_TEXTURE_2D, GL_BLEND, 5 (glEnable, glHint, glEnableClientState, GL_TEXTURE_2D, GL_BLEND,
6 GL_PERSPECTIVE_CORRECTION_HINT, GL_FOG_HINT, GL_NICEST, 6 GL_PERSPECTIVE_CORRECTION_HINT, GL_FOG_HINT, GL_NICEST,
7 GL_COLOR_ARRAY, GL_VERTEX_ARRAY, GL_TEXTURE_COORD_ARRAY, 7 GL_COLOR_ARRAY, GL_VERTEX_ARRAY, GL_TEXTURE_COORD_ARRAY,
8 glPushDebugGroup, GL_DEBUG_SOURCE_APPLICATION, glPopDebugGroup, 8 glPushDebugGroup, GL_DEBUG_SOURCE_APPLICATION, glPopDebugGroup,
9 epoxy_gl_version, epoxy_is_desktop_gl, epoxy_has_gl_extension) 9 epoxy_gl_version, epoxy_is_desktop_gl, epoxy_has_gl_extension,
10 GL_PRIMITIVE_RESTART, glPrimitiveRestartIndex)
10 11
11 12
12 GameRenderer = None 13 GameRenderer = None
13 14
14 15
43 44
44 45
45 def discover_features(): 46 def discover_features():
46 '''Discover which features are supported by our context.''' 47 '''Discover which features are supported by our context.'''
47 48
48 global use_debug_group, use_vao, shader_header 49 global use_debug_group, use_vao, use_primitive_restart, shader_header
49 50
50 version = epoxy_gl_version() 51 version = epoxy_gl_version()
51 is_desktop = epoxy_is_desktop_gl() 52 is_desktop = epoxy_is_desktop_gl()
52 53
53 use_debug_group = (is_desktop and version >= 43) or epoxy_has_gl_extension('GL_KHR_debug') 54 use_debug_group = (is_desktop and version >= 43) or epoxy_has_gl_extension('GL_KHR_debug')
54 use_vao = (is_desktop and version >= 30) or epoxy_has_gl_extension('GL_ARB_vertex_array_object') 55 use_vao = (is_desktop and version >= 30) or epoxy_has_gl_extension('GL_ARB_vertex_array_object')
56 use_primitive_restart = (is_desktop and version >= 31)
55 57
56 if is_desktop: 58 if is_desktop:
57 # gl_FragColor isn’t supported anymore starting with GLSL 4.2. 59 # gl_FragColor isn’t supported anymore starting with GLSL 4.2.
58 if version >= 42: 60 if version >= 42:
59 version = 41 61 version = 41
103 glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST) 105 glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST)
104 glEnableClientState(GL_COLOR_ARRAY) 106 glEnableClientState(GL_COLOR_ARRAY)
105 glEnableClientState(GL_VERTEX_ARRAY) 107 glEnableClientState(GL_VERTEX_ARRAY)
106 glEnableClientState(GL_TEXTURE_COORD_ARRAY) 108 glEnableClientState(GL_TEXTURE_COORD_ARRAY)
107 109
110 if use_primitive_restart:
111 glEnable(GL_PRIMITIVE_RESTART)
112 glPrimitiveRestartIndex(0xFFFF);
113
108 if use_debug_group: 114 if use_debug_group:
109 glPopDebugGroup() 115 glPopDebugGroup()
110 116
111 return window 117 return window