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author | Tavian Barnes <tavianator@gmail.com> | 2011-09-18 14:04:19 -0400 |
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committer | Tavian Barnes <tavianator@gmail.com> | 2011-09-18 14:04:19 -0400 |
commit | b2e1763c7d54e76a49f6f4434996f37882ae2171 (patch) | |
tree | cefad99c5d5d2724d432c43ef762bc9e23f2eb2e /libdimension/canvas_pigment.c | |
parent | 126211b917626fe7531310971981ee5d06026625 (diff) | |
download | dimension-b2e1763c7d54e76a49f6f4434996f37882ae2171.tar.xz |
Round correctly when converting colors to integers.
Diffstat (limited to 'libdimension/canvas_pigment.c')
-rw-r--r-- | libdimension/canvas_pigment.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libdimension/canvas_pigment.c b/libdimension/canvas_pigment.c index 3ab9de4..8a7e7d3 100644 --- a/libdimension/canvas_pigment.c +++ b/libdimension/canvas_pigment.c @@ -1,5 +1,5 @@ /************************************************************************* - * Copyright (C) 2010 Tavian Barnes <tavianator@tavianator.com> * + * Copyright (C) 2010-2011 Tavian Barnes <tavianator@tavianator.com> * * * * This file is part of The Dimension Library. * * * @@ -31,8 +31,8 @@ dmnsn_canvas_pigment_fn(const dmnsn_pigment *pigment, dmnsn_vector v) { dmnsn_canvas *canvas = pigment->ptr; - int x = (fmod(v.x, 1.0) + 1.0)*(canvas->width - 1) + 0.5; - int y = (fmod(v.y, 1.0) + 1.0)*(canvas->height - 1) + 0.5; + size_t x = llround((fmod(v.x, 1.0) + 1.0)*(canvas->width - 1)); + size_t y = llround((fmod(v.y, 1.0) + 1.0)*(canvas->height - 1)); dmnsn_color c = dmnsn_get_pixel(canvas, x%canvas->width, y%canvas->height); return c; } |