mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-19 21:02:18 +02:00
48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
// Copyright 2020 The Ebiten Authors
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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 ebiten_test
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import (
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"image/color"
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"testing"
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. "github.com/hajimehoshi/ebiten"
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)
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func TestShaderFill(t *testing.T) {
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const w, h = 16, 16
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dst, _ := NewImage(8, 8, FilterDefault)
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s, err := NewShader([]byte(`package main
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func Fragment(position vec4, texCoord vec2, color vec4) vec4 {
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return vec4(1, 0, 0, 1)
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}
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`))
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if err != nil {
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t.Fatal(err)
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}
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dst.DrawRectShader(16, 16, s, nil)
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if got, want := dst.At(0, 0).(color.RGBA), (color.RGBA{0xff, 0, 0, 0xff}); got != want {
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t.Errorf("got: %v, want: %v", got, want)
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}
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if got, want := dst.At(w-1, h-1).(color.RGBA), (color.RGBA{}); got != want {
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t.Errorf("got: %v, want: %v", got, want)
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}
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}
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