ebiten/internal/graphics/image_test.go
2016-12-27 01:57:36 +09:00

101 lines
2.4 KiB
Go

// Copyright 2016 The Ebiten Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package graphics_test
import (
"image"
"image/color"
"image/color/palette"
"testing"
. "github.com/hajimehoshi/ebiten/internal/graphics"
)
func TestCopyImage(t *testing.T) {
cases := []struct {
In image.Image
Out *image.RGBA
}{
{
In: &image.Paletted{
Pix: []uint8{0, 1, 1, 0},
Stride: 2,
Rect: image.Rect(0, 0, 2, 2),
Palette: color.Palette([]color.Color{
color.Transparent, color.White,
}),
},
Out: &image.RGBA{
Pix: []uint8{0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0, 0},
Stride: 8,
Rect: image.Rect(0, 0, 2, 2),
},
},
{
In: &image.RGBA{
Pix: []uint8{0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0, 0},
Stride: 8,
Rect: image.Rect(0, 0, 2, 2),
},
Out: &image.RGBA{
Pix: []uint8{0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0, 0},
Stride: 8,
Rect: image.Rect(0, 0, 2, 2),
},
},
}
for _, c := range cases {
got := CopyImage(c.In)
if got.Rect != c.Out.Rect {
t.Errorf("Rect: %v, want: %v", got.Rect, c.Out.Rect)
}
size := got.Rect.Size()
w, h := size.X, size.Y
for j := 0; j < h; j++ {
for i := 0; i < w; i++ {
got := got.At(i, j)
want := c.Out.At(i, j)
if got != want {
t.Errorf("At(%d, %d): %v, want: %v", i, j, got, want)
}
}
}
}
}
func BenchmarkCopyImageRGBA(b *testing.B) {
img := image.NewRGBA(image.Rect(0, 0, 4096, 4096))
b.ResetTimer()
for i := 0; i < b.N; i++ {
CopyImage(img)
}
}
func BenchmarkCopyImageNRGBA(b *testing.B) {
img := image.NewNRGBA(image.Rect(0, 0, 4096, 4096))
b.ResetTimer()
for i := 0; i < b.N; i++ {
CopyImage(img)
}
}
func BenchmarkCopyImagePaletted(b *testing.B) {
img := image.NewPaletted(image.Rect(0, 0, 4096, 4096), palette.Plan9)
b.ResetTimer()
for i := 0; i < b.N; i++ {
CopyImage(img)
}
}