mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-25 11:18:54 +01:00
0f21829867
Fixes #1320
86 lines
1.9 KiB
Go
86 lines
1.9 KiB
Go
// Copyright 2020 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 ebiten_test
|
|
|
|
import (
|
|
"image/color"
|
|
"testing"
|
|
|
|
. "github.com/hajimehoshi/ebiten"
|
|
)
|
|
|
|
func TestShaderFill(t *testing.T) {
|
|
const w, h = 16, 16
|
|
|
|
dst, _ := NewImage(w, h, FilterDefault)
|
|
s, err := NewShader([]byte(`package main
|
|
|
|
func Fragment(position vec4, texCoord vec2, color vec4) vec4 {
|
|
return vec4(1, 0, 0, 1)
|
|
}
|
|
`))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
dst.DrawRectShader(w/2, h/2, s, nil)
|
|
|
|
for j := 0; j < h; j++ {
|
|
for i := 0; i < w; i++ {
|
|
got := dst.At(i, j).(color.RGBA)
|
|
var want color.RGBA
|
|
if i < w/2 && j < h/2 {
|
|
want = color.RGBA{0xff, 0, 0, 0xff}
|
|
}
|
|
if got != want {
|
|
t.Errorf("dst.At(%d, %d): got: %v, want: %v", i, j, got, want)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestShaderFillWithDrawImage(t *testing.T) {
|
|
const w, h = 16, 16
|
|
|
|
dst, _ := NewImage(w, h, FilterDefault)
|
|
s, err := NewShader([]byte(`package main
|
|
|
|
func Fragment(position vec4, texCoord vec2, color vec4) vec4 {
|
|
return vec4(1, 0, 0, 1)
|
|
}
|
|
`))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
src, _ := NewImage(w/2, h/2, FilterDefault)
|
|
op := &DrawImageOptions{}
|
|
op.Shader = s
|
|
dst.DrawImage(src, op)
|
|
|
|
for j := 0; j < h; j++ {
|
|
for i := 0; i < w; i++ {
|
|
got := dst.At(i, j).(color.RGBA)
|
|
var want color.RGBA
|
|
if i < w/2 && j < h/2 {
|
|
want = color.RGBA{0xff, 0, 0, 0xff}
|
|
}
|
|
if got != want {
|
|
t.Errorf("dst.At(%d, %d): got: %v, want: %v", i, j, got, want)
|
|
}
|
|
}
|
|
}
|
|
}
|