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comparison pytouhou/ui/opengl/sprite.pyx @ 525:43ecf0f98f4d

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Precalculate the inverse of the texture size at ANM load, to not recalculate at every sprite change.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Wed, 18 Dec 2013 18:15:45 +0100
parents 6e3b3d5d4691
children db28538cd399
comparison
equal deleted inserted replaced
524:7f016dfbdfb1 525:43ecf0f98f4d
55 if sprite.allow_dest_offset: 55 if sprite.allow_dest_offset:
56 translate(&vertmat, sprite.dest_offset[0], sprite.dest_offset[1], sprite.dest_offset[2]) 56 translate(&vertmat, sprite.dest_offset[0], sprite.dest_offset[1], sprite.dest_offset[2])
57 if sprite.corner_relative_placement: # Reposition 57 if sprite.corner_relative_placement: # Reposition
58 translate2d(&vertmat, width / 2, height / 2) 58 translate2d(&vertmat, width / 2, height / 2)
59 59
60 size = sprite.anm.size 60 x_1 = sprite.anm.size_inv[0]
61 x_1 = 1 / <double>size[0] 61 y_1 = sprite.anm.size_inv[1]
62 y_1 = 1 / <double>size[1]
63 tox, toy = sprite.texoffsets 62 tox, toy = sprite.texoffsets
64 uvs = (tx * x_1 + tox, 63 uvs = (tx * x_1 + tox,
65 (tx + tw) * x_1 + tox, 64 (tx + tw) * x_1 + tox,
66 ty * y_1 + toy, 65 ty * y_1 + toy,
67 (ty + th) * y_1 + toy) 66 (ty + th) * y_1 + toy)