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graphics: Replace copy with for-loop

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This commit is contained in:
Hajime Hoshi 2017-05-28 00:08:10 +09:00
parent 3b25289a18
commit e53262bfac
1 changed files with 5 additions and 1 deletions
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6
internal/graphics/command.go
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@ -44,7 +44,11 @@ func (q *commandQueue) appendVertices(vertices []float32) {
n := q.verticesNum + len(vertices) - len(q.vertices) n := q.verticesNum + len(vertices) - len(q.vertices)
q.vertices = append(q.vertices, make([]float32, n)...) q.vertices = append(q.vertices, make([]float32, n)...)
} }
copy(q.vertices[q.verticesNum:q.verticesNum+len(vertices)], vertices) // for-loop might be faster than copy:
// On GopherJS, copy might cause subarray calls.
for i := 0; i < len(vertices); i++ {
q.vertices[q.verticesNum+i] = vertices[i]
}
q.verticesNum += len(vertices) q.verticesNum += len(vertices)
} }