mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 13:07:26 +01:00
455 lines
12 KiB
Go
455 lines
12 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 shareable_test
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import (
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"image/color"
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"runtime"
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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/shareable"
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t "github.com/hajimehoshi/ebiten/internal/testing"
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)
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func TestMain(m *testing.M) {
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t.MainWithRunLoop(m)
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}
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func quadVertices(sw, sh, x, y int, scalex float32) []float32 {
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dx0 := float32(x)
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dy0 := float32(y)
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dx1 := float32(x) + float32(sw)*scalex
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dy1 := float32(y) + float32(sh)
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sx0 := float32(0)
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sy0 := float32(0)
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sx1 := float32(sw)
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sy1 := float32(sh)
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return []float32{
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dx0, dy0, sx0, sy0, sx0, sy0, sx1, sy1, 1, 1, 1, 1,
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dx1, dy0, sx1, sy0, sx0, sy0, sx1, sy1, 1, 1, 1, 1,
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dx0, dy1, sx0, sy1, sx0, sy0, sx1, sy1, 1, 1, 1, 1,
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dx1, dy1, sx1, sy1, sx0, sy0, sx1, sy1, 1, 1, 1, 1,
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}
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}
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const bigSize = 2049
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func TestEnsureNotShared(t *testing.T) {
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// Create img1 and img2 with this size so that the next images are allocated
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// with non-upper-left location.
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img1 := NewImage(bigSize, 100, false)
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defer img1.MarkDisposed()
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// Ensure img1's region is allocated.
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img1.ReplacePixels(make([]byte, 4*bigSize*100))
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img2 := NewImage(100, bigSize, false)
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defer img2.MarkDisposed()
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img2.ReplacePixels(make([]byte, 4*100*bigSize))
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const size = 32
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img3 := NewImage(size/2, size/2, false)
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defer img3.MarkDisposed()
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img3.ReplacePixels(make([]byte, (size/2)*(size/2)*4))
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img4 := NewImage(size, size, false)
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defer img4.MarkDisposed()
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pix := make([]byte, size*size*4)
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for j := 0; j < size; j++ {
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for i := 0; i < size; i++ {
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pix[4*(i+j*size)] = byte(i + j)
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pix[4*(i+j*size)+1] = byte(i + j)
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pix[4*(i+j*size)+2] = byte(i + j)
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pix[4*(i+j*size)+3] = byte(i + j)
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}
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}
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img4.ReplacePixels(pix)
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const (
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dx0 = size / 4
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dy0 = size / 4
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dx1 = size * 3 / 4
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dy1 = size * 3 / 4
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)
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// img4.ensureNotShared() should be called.
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vs := quadVertices(size/2, size/2, size/4, size/4, 1)
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is := graphics.QuadIndices()
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img4.DrawTriangles(img3, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
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want := false
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if got := img4.IsSharedForTesting(); got != want {
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t.Errorf("got: %v, want: %v", got, want)
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}
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pix, err := img4.Pixels(0, 0, size, size)
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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 < size; j++ {
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for i := 0; i < size; i++ {
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r := pix[4*(size*j+i)]
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g := pix[4*(size*j+i)+1]
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b := pix[4*(size*j+i)+2]
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a := pix[4*(size*j+i)+3]
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got := color.RGBA{r, g, b, a}
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var want color.RGBA
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if i < dx0 || dx1 <= i || j < dy0 || dy1 <= j {
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c := byte(i + j)
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want = color.RGBA{c, c, c, c}
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}
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if got != want {
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t.Errorf("at(%d, %d): got: %v, want: %v", i, j, got, want)
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}
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}
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}
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// Check further drawing doesn't cause panic.
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// This bug was fixed by 03dcd948.
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img4.DrawTriangles(img3, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
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}
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func TestReshared(t *testing.T) {
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const size = 16
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img0 := NewImage(size, size, false)
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defer img0.MarkDisposed()
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img0.ReplacePixels(make([]byte, 4*size*size))
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img1 := NewImage(size, size, false)
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defer img1.MarkDisposed()
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img1.ReplacePixels(make([]byte, 4*size*size))
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if got, want := img1.IsSharedForTesting(), true; got != want {
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t.Errorf("got: %v, want: %v", got, want)
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}
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img2 := NewImage(size, size, false)
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defer img2.MarkDisposed()
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pix := make([]byte, 4*size*size)
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for j := 0; j < size; j++ {
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for i := 0; i < size; i++ {
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pix[4*(i+j*size)] = byte(i + j)
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pix[4*(i+j*size)+1] = byte(i + j)
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pix[4*(i+j*size)+2] = byte(i + j)
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pix[4*(i+j*size)+3] = byte(i + j)
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}
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}
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img2.ReplacePixels(pix)
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img3 := NewImage(size, size, true /* volatile */)
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defer img3.MarkDisposed()
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img1.ReplacePixels(make([]byte, 4*size*size))
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if got, want := img3.IsSharedForTesting(), false; got != want {
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t.Errorf("got: %v, want: %v", got, want)
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}
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// Use img1 as a render target.
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vs := quadVertices(size, size, 0, 0, 1)
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is := graphics.QuadIndices()
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img1.DrawTriangles(img2, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
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if got, want := img1.IsSharedForTesting(), false; got != want {
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t.Errorf("got: %v, want: %v", got, want)
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}
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// Use img1 as a render source.
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for i := 0; i < MaxCountForShare; i++ {
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if err := MakeImagesSharedForTesting(); err != nil {
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t.Fatal(err)
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}
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img0.DrawTriangles(img1, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
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if got, want := img1.IsSharedForTesting(), false; 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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if err := MakeImagesSharedForTesting(); err != nil {
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t.Fatal(err)
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}
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pix, err := img1.Pixels(0, 0, size, size)
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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 < size; j++ {
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for i := 0; i < size; i++ {
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want := color.RGBA{byte(i + j), byte(i + j), byte(i + j), byte(i + j)}
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r := pix[4*(size*j+i)]
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g := pix[4*(size*j+i)+1]
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b := pix[4*(size*j+i)+2]
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a := pix[4*(size*j+i)+3]
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got := color.RGBA{r, g, b, a}
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if 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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}
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img0.DrawTriangles(img1, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
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if got, want := img1.IsSharedForTesting(), true; got != want {
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t.Errorf("got: %v, want: %v", got, want)
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}
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pix, err = img1.Pixels(0, 0, size, size)
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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 < size; j++ {
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for i := 0; i < size; i++ {
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want := color.RGBA{byte(i + j), byte(i + j), byte(i + j), byte(i + j)}
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r := pix[4*(size*j+i)]
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g := pix[4*(size*j+i)+1]
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b := pix[4*(size*j+i)+2]
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a := pix[4*(size*j+i)+3]
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got := color.RGBA{r, g, b, a}
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if 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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}
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// Use img3 as a render source. img3 never uses a shared texture.
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for i := 0; i < MaxCountForShare*2; i++ {
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if err := MakeImagesSharedForTesting(); err != nil {
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t.Fatal(err)
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}
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img0.DrawTriangles(img3, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
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if got, want := img3.IsSharedForTesting(), false; 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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runtime.GC()
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}
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func TestExtend(t *testing.T) {
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const w0, h0 = 100, 100
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img0 := NewImage(w0, h0, false)
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defer img0.MarkDisposed()
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p0 := make([]byte, 4*w0*h0)
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for i := 0; i < w0*h0; i++ {
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p0[4*i] = byte(i)
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p0[4*i+1] = byte(i)
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p0[4*i+2] = byte(i)
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p0[4*i+3] = byte(i)
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}
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img0.ReplacePixels(p0)
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const w1, h1 = 1025, 100
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img1 := NewImage(w1, h1, false)
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defer img1.MarkDisposed()
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p1 := make([]byte, 4*w1*h1)
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for i := 0; i < w1*h1; i++ {
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p1[4*i] = byte(i)
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p1[4*i+1] = byte(i)
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p1[4*i+2] = byte(i)
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p1[4*i+3] = byte(i)
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}
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// Ensure to allocate
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img1.ReplacePixels(p1)
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pix0, err := img0.Pixels(0, 0, w0, h0)
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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 < h0; j++ {
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for i := 0; i < w0; i++ {
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r := pix0[4*(w0*j+i)]
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g := pix0[4*(w0*j+i)+1]
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b := pix0[4*(w0*j+i)+2]
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a := pix0[4*(w0*j+i)+3]
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got := color.RGBA{r, g, b, a}
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c := byte(i + w0*j)
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want := color.RGBA{c, c, c, c}
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if got != want {
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t.Errorf("at(%d, %d): got: %v, want: %v", i, j, got, want)
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}
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}
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}
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pix1, err := img1.Pixels(0, 0, w1, h1)
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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 < h1; j++ {
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for i := 0; i < w1; i++ {
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r := pix1[4*(w1*j+i)]
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g := pix1[4*(w1*j+i)+1]
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b := pix1[4*(w1*j+i)+2]
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a := pix1[4*(w1*j+i)+3]
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got := color.RGBA{r, g, b, a}
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c := byte(i + w1*j)
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want := color.RGBA{c, c, c, c}
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if got != want {
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t.Errorf("at(%d, %d): got: %v, want: %v", i, j, got, want)
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}
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}
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}
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img0.MarkDisposed()
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img1.MarkDisposed()
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}
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func TestReplacePixelsAfterDrawTriangles(t *testing.T) {
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const w, h = 256, 256
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src := NewImage(w, h, false)
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defer src.MarkDisposed()
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dst := NewImage(w, h, false)
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defer dst.MarkDisposed()
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pix := make([]byte, 4*w*h)
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for i := 0; i < w*h; i++ {
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pix[4*i] = byte(i)
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pix[4*i+1] = byte(i)
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pix[4*i+2] = byte(i)
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pix[4*i+3] = byte(i)
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}
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src.ReplacePixels(pix)
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vs := quadVertices(w, h, 0, 0, 1)
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is := graphics.QuadIndices()
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dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
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dst.ReplacePixels(pix)
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pix, err := dst.Pixels(0, 0, w, h)
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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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r := pix[4*(w*j+i)]
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g := pix[4*(w*j+i)+1]
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b := pix[4*(w*j+i)+2]
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a := pix[4*(w*j+i)+3]
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got := color.RGBA{r, g, b, a}
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c := byte(i + w*j)
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want := color.RGBA{c, c, c, c}
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if got != want {
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t.Errorf("at(%d, %d): 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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// Issue #887
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func TestSmallImages(t *testing.T) {
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const w, h = 4, 8
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src := NewImage(w, h, false)
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defer src.MarkDisposed()
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dst := NewImage(w, h, false)
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defer dst.MarkDisposed()
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pix := make([]byte, 4*w*h)
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for i := 0; i < w*h; i++ {
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pix[4*i] = 0xff
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pix[4*i+1] = 0xff
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pix[4*i+2] = 0xff
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pix[4*i+3] = 0xff
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}
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src.ReplacePixels(pix)
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vs := quadVertices(w, h, 0, 0, 1)
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is := graphics.QuadIndices()
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dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
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pix, err := dst.Pixels(0, 0, w, h)
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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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r := pix[4*(w*j+i)]
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a := pix[4*(w*j+i)+3]
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if got, want := r, byte(0xff); got != want {
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t.Errorf("at(%d, %d) red: got: %d, want: %d", i, j, got, want)
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}
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if got, want := a, byte(0xff); got != want {
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t.Errorf("at(%d, %d) alpha: got: %d, want: %d", i, j, got, want)
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}
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}
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}
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}
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// Issue #887
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func TestLongImages(t *testing.T) {
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const w, h = 1, 6
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src := NewImage(w, h, false)
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defer src.MarkDisposed()
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const dstW, dstH = 256, 256
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dst := NewImage(dstW, dstH, false)
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defer dst.MarkDisposed()
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pix := make([]byte, 4*w*h)
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for i := 0; i < w*h; i++ {
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pix[4*i] = 0xff
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pix[4*i+1] = 0xff
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pix[4*i+2] = 0xff
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pix[4*i+3] = 0xff
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}
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src.ReplacePixels(pix)
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const scale = 120
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vs := quadVertices(w, h, 0, 0, scale)
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is := graphics.QuadIndices()
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dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
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pix, err := dst.Pixels(0, 0, dstW, dstH)
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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*scale; i++ {
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r := pix[4*(dstW*j+i)]
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a := pix[4*(dstW*j+i)+3]
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if got, want := r, byte(0xff); got != want {
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t.Errorf("at(%d, %d) red: got: %d, want: %d", i, j, got, want)
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}
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if got, want := a, byte(0xff); got != want {
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t.Errorf("at(%d, %d) alpha: got: %d, want: %d", 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 TestDisposeImmediately(t *testing.T) {
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// This tests restorable.Image.ClearPixels is called but ReplacePixels is not called.
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img0 := NewImage(16, 16, false)
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img0.EnsureNotSharedForTesting()
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img1 := NewImage(16, 16, false)
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img1.EnsureNotSharedForTesting()
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// img0 and img1 should share the same backend in 99.9999% possibility.
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img0.MarkDisposed()
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img1.MarkDisposed()
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}
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// Issue #1028
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func TestExtendWithBigImage(t *testing.T) {
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img0 := NewImage(1, 1, false)
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defer img0.MarkDisposed()
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img0.ReplacePixels(make([]byte, 4*1*1))
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img1 := NewImage(1025, 1025, false)
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defer img1.MarkDisposed()
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img1.ReplacePixels(make([]byte, 4*1025*1025))
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}
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// TODO: Add tests to extend shareable image out of the main loop
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