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graphics: Simplify vertices

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This commit is contained in:
Hajime Hoshi 2016-11-03 19:10:45 +09:00
parent b2780fb585
commit 6f97374326
1 changed files with 2 additions and 10 deletions
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12
vertices.go
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@ -31,7 +31,6 @@ func vertices(parts ImageParts, width, height int, geo *GeoM) []float32 {
float32(geo.Element(1, 1)),
float32(geo.Element(0, 2)),
float32(geo.Element(1, 2))}
n := 0
w := float32(1)
h := float32(1)
for w < float32(width) {
@ -42,16 +41,10 @@ func vertices(parts ImageParts, width, height int, geo *GeoM) []float32 {
}
for i := 0; i < l; i++ {
dx0, dy0, dx1, dy1 := parts.Dst(i)
if dx0 == dx1 || dy0 == dy1 {
continue
}
x0, y0, x1, y1 := float32(dx0), float32(dy0), float32(dx1), float32(dy1)
sx0, sy0, sx1, sy1 := parts.Src(i)
if sx0 == sx1 || sy0 == sy1 {
continue
}
u0, v0, u1, v1 := float32(sx0)/w, float32(sy0)/h, float32(sx1)/w, float32(sy1)/h
offset := n * totalSize
offset := i * totalSize
vs[offset] = x0
vs[offset+1] = y0
vs[offset+2] = u0
@ -83,7 +76,6 @@ func vertices(parts ImageParts, width, height int, geo *GeoM) []float32 {
for j, g := range geos {
vs[offset+4+j] = g
}
n++
}
return vs[:n*totalSize]
return vs
}