mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-20 13:22:19 +02:00
109 lines
3.6 KiB
Go
109 lines
3.6 KiB
Go
// Copyright 2018 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 graphicscommand_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/internal/driver"
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"github.com/hajimehoshi/ebiten/internal/graphics"
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. "github.com/hajimehoshi/ebiten/internal/graphicscommand"
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etesting "github.com/hajimehoshi/ebiten/internal/testing"
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)
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func TestMain(m *testing.M) {
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etesting.MainWithRunLoop(m)
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}
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func quadVertices(w, h float32) []float32 {
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return []float32{
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0, 0, 0, 0, 1, 1, 1, 1,
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w, 0, w, 0, 1, 1, 1, 1,
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0, w, 0, h, 1, 1, 1, 1,
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w, h, w, h, 1, 1, 1, 1,
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}
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}
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func TestClear(t *testing.T) {
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const w, h = 1024, 1024
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src := NewImage(w/2, h/2)
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dst := NewImage(w, h)
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vs := quadVertices(w/2, h/2)
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is := graphics.QuadIndices()
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dst.DrawTriangles([graphics.ShaderImageNum]*Image{src}, [graphics.ShaderImageNum - 1][2]float32{}, vs, is, nil, driver.CompositeModeClear, driver.FilterNearest, driver.AddressUnsafe, driver.Region{}, nil, nil)
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pix, err := dst.Pixels()
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if err != nil {
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t.Fatal(err)
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}
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for j := 0; j < h/2; j++ {
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for i := 0; i < w/2; i++ {
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idx := 4 * (i + w*j)
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got := color.RGBA{pix[idx], pix[idx+1], pix[idx+2], pix[idx+3]}
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want := color.RGBA{}
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if got != want {
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t.Errorf("dst.At(%d, %d) after DrawTriangles: got %v, want: %v", i, j, got, want)
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}
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}
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}
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}
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func TestReplacePixelsPartAfterDrawTriangles(t *testing.T) {
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defer func() {
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if r := recover(); r == nil {
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t.Errorf("ReplacePixels must panic but not")
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}
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}()
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const w, h = 32, 32
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clr := NewImage(w, h)
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src := NewImage(w/2, h/2)
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dst := NewImage(w, h)
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vs := quadVertices(w/2, h/2)
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is := graphics.QuadIndices()
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dst.DrawTriangles([graphics.ShaderImageNum]*Image{clr}, [graphics.ShaderImageNum - 1][2]float32{}, vs, is, nil, driver.CompositeModeClear, driver.FilterNearest, driver.AddressUnsafe, driver.Region{}, nil, nil)
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dst.DrawTriangles([graphics.ShaderImageNum]*Image{src}, [graphics.ShaderImageNum - 1][2]float32{}, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressUnsafe, driver.Region{}, nil, nil)
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dst.ReplacePixels(make([]byte, 4), 0, 0, 1, 1)
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}
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func TestShader(t *testing.T) {
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const w, h = 16, 16
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clr := NewImage(w, h)
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dst := NewImage(w, h)
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vs := quadVertices(w, h)
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is := graphics.QuadIndices()
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dst.DrawTriangles([graphics.ShaderImageNum]*Image{clr}, [graphics.ShaderImageNum - 1][2]float32{}, vs, is, nil, driver.CompositeModeClear, driver.FilterNearest, driver.AddressUnsafe, driver.Region{}, nil, nil)
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ir := etesting.ShaderProgramFill(0xff, 0, 0, 0xff)
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s := NewShader(&ir)
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dst.DrawTriangles([graphics.ShaderImageNum]*Image{}, [graphics.ShaderImageNum - 1][2]float32{}, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressUnsafe, driver.Region{}, s, nil)
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pix, err := dst.Pixels()
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if err != nil {
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t.Fatal(err)
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}
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for j := 0; j < h; j++ {
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for i := 0; i < w; i++ {
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idx := 4 * (i + w*j)
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got := color.RGBA{pix[idx], pix[idx+1], pix[idx+2], pix[idx+3]}
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want := color.RGBA{0xff, 0, 0, 0xff}
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if got != want {
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t.Errorf("dst.At(%d, %d) after DrawTriangles: got %v, want: %v", i, j, got, want)
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}
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}
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}
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}
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