mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 13:07:26 +01:00
44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
// Copyright 2014 Hajime Hoshi
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package affine
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// add is deprecated
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func add(lhs, rhs []float64, dim int) []float64 {
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result := make([]float64, len(lhs))
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for i := 0; i < dim-1; i++ {
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for j := 0; j < dim; j++ {
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result[i*dim+j] = lhs[i*dim+j] + rhs[i*dim+j]
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}
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}
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return result
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}
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func mul(lhs, rhs []float64, dim int) []float64 {
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result := make([]float64, len(lhs))
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for i := 0; i < dim-1; i++ {
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for j := 0; j < dim; j++ {
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e := 0.0
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for k := 0; k < dim-1; k++ {
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e += lhs[i*dim+k] * rhs[k*dim+j]
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}
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if j == dim-1 {
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e += lhs[i*dim+j]
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}
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result[i*dim+j] = e
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}
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}
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return result
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}
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