mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-25 19:28:57 +01:00
902 lines
22 KiB
Go
902 lines
22 KiB
Go
// Copyright 2017 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 restorable_test
|
|
|
|
import (
|
|
"image"
|
|
"image/color"
|
|
"testing"
|
|
|
|
"github.com/hajimehoshi/ebiten/internal/driver"
|
|
"github.com/hajimehoshi/ebiten/internal/graphics"
|
|
. "github.com/hajimehoshi/ebiten/internal/restorable"
|
|
t "github.com/hajimehoshi/ebiten/internal/testing"
|
|
)
|
|
|
|
func TestMain(m *testing.M) {
|
|
EnableRestoringForTesting()
|
|
t.MainWithRunLoop(m)
|
|
}
|
|
|
|
func pixelsToColor(p *Pixels, i, j int) color.RGBA {
|
|
r, g, b, a := p.At(i, j)
|
|
return color.RGBA{r, g, b, a}
|
|
}
|
|
|
|
func abs(x int) int {
|
|
if x < 0 {
|
|
return -x
|
|
}
|
|
return x
|
|
}
|
|
|
|
// sameColors compares c1 and c2 and returns a boolean value indicating
|
|
// if the two colors are (almost) same.
|
|
//
|
|
// Pixels read from GPU might include errors (#492), and
|
|
// sameColors considers such errors as delta.
|
|
func sameColors(c1, c2 color.RGBA, delta int) bool {
|
|
return abs(int(c1.R)-int(c2.R)) <= delta &&
|
|
abs(int(c1.G)-int(c2.G)) <= delta &&
|
|
abs(int(c1.B)-int(c2.B)) <= delta &&
|
|
abs(int(c1.A)-int(c2.A)) <= delta
|
|
}
|
|
|
|
func TestRestore(t *testing.T) {
|
|
img0 := NewImage(1, 1, false)
|
|
defer img0.Dispose()
|
|
|
|
clr0 := color.RGBA{0x00, 0x00, 0x00, 0xff}
|
|
img0.ReplacePixels([]byte{clr0.R, clr0.G, clr0.B, clr0.A}, 0, 0, 1, 1)
|
|
if err := ResolveStaleImages(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := RestoreIfNeeded(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
want := clr0
|
|
got := pixelsToColor(img0.BasePixelsForTesting(), 0, 0)
|
|
if !sameColors(got, want, 1) {
|
|
t.Errorf("got %v, want %v", got, want)
|
|
}
|
|
}
|
|
|
|
func TestRestoreWithoutDraw(t *testing.T) {
|
|
img0 := NewImage(1024, 1024, false)
|
|
defer img0.Dispose()
|
|
|
|
// If there is no drawing command on img0, img0 is cleared when restored.
|
|
|
|
if err := ResolveStaleImages(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := RestoreIfNeeded(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
for j := 0; j < 1024; j++ {
|
|
for i := 0; i < 1024; i++ {
|
|
want := color.RGBA{0x00, 0x00, 0x00, 0x00}
|
|
got := pixelsToColor(img0.BasePixelsForTesting(), i, j)
|
|
if !sameColors(got, want, 0) {
|
|
t.Errorf("got %v, want %v", got, want)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func quadVertices(sw, sh, x, y int) []float32 {
|
|
dx0 := float32(x)
|
|
dy0 := float32(y)
|
|
dx1 := float32(x + sw)
|
|
dy1 := float32(y + sh)
|
|
sx0 := float32(0)
|
|
sy0 := float32(0)
|
|
sx1 := float32(sw)
|
|
sy1 := float32(sh)
|
|
return []float32{
|
|
dx0, dy0, sx0, sy0, sx0, sy0, sx1, sy1, 1, 1, 1, 1,
|
|
dx1, dy0, sx1, sy0, sx0, sy0, sx1, sy1, 1, 1, 1, 1,
|
|
dx0, dy1, sx0, sy1, sx0, sy0, sx1, sy1, 1, 1, 1, 1,
|
|
dx1, dy1, sx1, sy1, sx0, sy0, sx1, sy1, 1, 1, 1, 1,
|
|
}
|
|
}
|
|
|
|
func TestRestoreChain(t *testing.T) {
|
|
const num = 10
|
|
imgs := []*Image{}
|
|
for i := 0; i < num; i++ {
|
|
img := NewImage(1, 1, false)
|
|
imgs = append(imgs, img)
|
|
}
|
|
defer func() {
|
|
for _, img := range imgs {
|
|
img.Dispose()
|
|
}
|
|
}()
|
|
clr := color.RGBA{0x00, 0x00, 0x00, 0xff}
|
|
imgs[0].ReplacePixels([]byte{clr.R, clr.G, clr.B, clr.A}, 0, 0, 1, 1)
|
|
for i := 0; i < num-1; i++ {
|
|
vs := quadVertices(1, 1, 0, 0)
|
|
is := graphics.QuadIndices()
|
|
imgs[i+1].DrawTriangles(imgs[i], vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
}
|
|
if err := ResolveStaleImages(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := RestoreIfNeeded(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
want := clr
|
|
for i, img := range imgs {
|
|
got := pixelsToColor(img.BasePixelsForTesting(), 0, 0)
|
|
if !sameColors(got, want, 1) {
|
|
t.Errorf("%d: got %v, want %v", i, got, want)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestRestoreChain2(t *testing.T) {
|
|
const (
|
|
num = 10
|
|
w = 1
|
|
h = 1
|
|
)
|
|
imgs := []*Image{}
|
|
for i := 0; i < num; i++ {
|
|
img := NewImage(w, h, false)
|
|
imgs = append(imgs, img)
|
|
}
|
|
defer func() {
|
|
for _, img := range imgs {
|
|
img.Dispose()
|
|
}
|
|
}()
|
|
|
|
clr0 := color.RGBA{0xff, 0x00, 0x00, 0xff}
|
|
imgs[0].ReplacePixels([]byte{clr0.R, clr0.G, clr0.B, clr0.A}, 0, 0, w, h)
|
|
clr7 := color.RGBA{0x00, 0xff, 0x00, 0xff}
|
|
imgs[7].ReplacePixels([]byte{clr7.R, clr7.G, clr7.B, clr7.A}, 0, 0, w, h)
|
|
clr8 := color.RGBA{0x00, 0x00, 0xff, 0xff}
|
|
imgs[8].ReplacePixels([]byte{clr8.R, clr8.G, clr8.B, clr8.A}, 0, 0, w, h)
|
|
|
|
is := graphics.QuadIndices()
|
|
imgs[8].DrawTriangles(imgs[7], quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
imgs[9].DrawTriangles(imgs[8], quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
for i := 0; i < 7; i++ {
|
|
imgs[i+1].DrawTriangles(imgs[i], quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
}
|
|
|
|
if err := ResolveStaleImages(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := RestoreIfNeeded(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
for i, img := range imgs {
|
|
want := clr0
|
|
if i == 8 || i == 9 {
|
|
want = clr7
|
|
}
|
|
got := pixelsToColor(img.BasePixelsForTesting(), 0, 0)
|
|
if !sameColors(got, want, 1) {
|
|
t.Errorf("%d: got %v, want %v", i, got, want)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestRestoreOverrideSource(t *testing.T) {
|
|
const (
|
|
w = 1
|
|
h = 1
|
|
)
|
|
img0 := NewImage(w, h, false)
|
|
img1 := NewImage(w, h, false)
|
|
img2 := NewImage(w, h, false)
|
|
img3 := NewImage(w, h, false)
|
|
defer func() {
|
|
img3.Dispose()
|
|
img2.Dispose()
|
|
img1.Dispose()
|
|
img0.Dispose()
|
|
}()
|
|
clr0 := color.RGBA{0x00, 0x00, 0x00, 0xff}
|
|
clr1 := color.RGBA{0x00, 0x00, 0x01, 0xff}
|
|
img1.ReplacePixels([]byte{clr0.R, clr0.G, clr0.B, clr0.A}, 0, 0, w, h)
|
|
is := graphics.QuadIndices()
|
|
img2.DrawTriangles(img1, quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
img3.DrawTriangles(img2, quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
img0.ReplacePixels([]byte{clr1.R, clr1.G, clr1.B, clr1.A}, 0, 0, w, h)
|
|
img1.DrawTriangles(img0, quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
if err := ResolveStaleImages(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := RestoreIfNeeded(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
testCases := []struct {
|
|
name string
|
|
want color.RGBA
|
|
got color.RGBA
|
|
}{
|
|
{
|
|
"0",
|
|
clr1,
|
|
pixelsToColor(img0.BasePixelsForTesting(), 0, 0),
|
|
},
|
|
{
|
|
"1",
|
|
clr1,
|
|
pixelsToColor(img1.BasePixelsForTesting(), 0, 0),
|
|
},
|
|
{
|
|
"2",
|
|
clr0,
|
|
pixelsToColor(img2.BasePixelsForTesting(), 0, 0),
|
|
},
|
|
{
|
|
"3",
|
|
clr0,
|
|
pixelsToColor(img3.BasePixelsForTesting(), 0, 0),
|
|
},
|
|
}
|
|
for _, c := range testCases {
|
|
if !sameColors(c.got, c.want, 1) {
|
|
t.Errorf("%s: got %v, want %v", c.name, c.got, c.want)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestRestoreComplexGraph(t *testing.T) {
|
|
const (
|
|
w = 4
|
|
h = 1
|
|
)
|
|
// 0 -> 3
|
|
// 1 -> 3
|
|
// 1 -> 4
|
|
// 2 -> 4
|
|
// 2 -> 7
|
|
// 3 -> 5
|
|
// 3 -> 6
|
|
// 3 -> 7
|
|
// 4 -> 6
|
|
base := image.NewRGBA(image.Rect(0, 0, w, h))
|
|
base.Pix[0] = 0xff
|
|
base.Pix[1] = 0xff
|
|
base.Pix[2] = 0xff
|
|
base.Pix[3] = 0xff
|
|
img0 := newImageFromImage(base)
|
|
img1 := newImageFromImage(base)
|
|
img2 := newImageFromImage(base)
|
|
img3 := NewImage(w, h, false)
|
|
img4 := NewImage(w, h, false)
|
|
img5 := NewImage(w, h, false)
|
|
img6 := NewImage(w, h, false)
|
|
img7 := NewImage(w, h, false)
|
|
defer func() {
|
|
img7.Dispose()
|
|
img6.Dispose()
|
|
img5.Dispose()
|
|
img4.Dispose()
|
|
img3.Dispose()
|
|
img2.Dispose()
|
|
img1.Dispose()
|
|
img0.Dispose()
|
|
}()
|
|
vs := quadVertices(w, h, 0, 0)
|
|
is := graphics.QuadIndices()
|
|
img3.DrawTriangles(img0, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
vs = quadVertices(w, h, 1, 0)
|
|
img3.DrawTriangles(img1, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
vs = quadVertices(w, h, 1, 0)
|
|
img4.DrawTriangles(img1, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
vs = quadVertices(w, h, 2, 0)
|
|
img4.DrawTriangles(img2, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
vs = quadVertices(w, h, 0, 0)
|
|
img5.DrawTriangles(img3, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
vs = quadVertices(w, h, 0, 0)
|
|
img6.DrawTriangles(img3, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
vs = quadVertices(w, h, 1, 0)
|
|
img6.DrawTriangles(img4, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
vs = quadVertices(w, h, 0, 0)
|
|
img7.DrawTriangles(img2, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
vs = quadVertices(w, h, 2, 0)
|
|
img7.DrawTriangles(img3, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
if err := ResolveStaleImages(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := RestoreIfNeeded(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
testCases := []struct {
|
|
name string
|
|
out string
|
|
image *Image
|
|
}{
|
|
{
|
|
"0",
|
|
"*---",
|
|
img0,
|
|
},
|
|
{
|
|
"1",
|
|
"*---",
|
|
img1,
|
|
},
|
|
{
|
|
"2",
|
|
"*---",
|
|
img2,
|
|
},
|
|
{
|
|
"3",
|
|
"**--",
|
|
img3,
|
|
},
|
|
{
|
|
"4",
|
|
"-**-",
|
|
img4,
|
|
},
|
|
{
|
|
"5",
|
|
"**--",
|
|
img5,
|
|
},
|
|
{
|
|
"6",
|
|
"****",
|
|
img6,
|
|
},
|
|
{
|
|
"7",
|
|
"*-**",
|
|
img7,
|
|
},
|
|
}
|
|
for _, c := range testCases {
|
|
for i := 0; i < 4; i++ {
|
|
want := color.RGBA{}
|
|
if c.out[i] == '*' {
|
|
want = color.RGBA{0xff, 0xff, 0xff, 0xff}
|
|
}
|
|
got := pixelsToColor(c.image.BasePixelsForTesting(), i, 0)
|
|
if !sameColors(got, want, 1) {
|
|
t.Errorf("%s[%d]: got %v, want %v", c.name, i, got, want)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func newImageFromImage(rgba *image.RGBA) *Image {
|
|
s := rgba.Bounds().Size()
|
|
img := NewImage(s.X, s.Y, false)
|
|
img.ReplacePixels(rgba.Pix, 0, 0, s.X, s.Y)
|
|
return img
|
|
}
|
|
|
|
func TestRestoreRecursive(t *testing.T) {
|
|
const (
|
|
w = 4
|
|
h = 1
|
|
)
|
|
base := image.NewRGBA(image.Rect(0, 0, w, h))
|
|
base.Pix[0] = 0xff
|
|
base.Pix[1] = 0xff
|
|
base.Pix[2] = 0xff
|
|
base.Pix[3] = 0xff
|
|
|
|
img0 := newImageFromImage(base)
|
|
img1 := NewImage(w, h, false)
|
|
defer func() {
|
|
img1.Dispose()
|
|
img0.Dispose()
|
|
}()
|
|
is := graphics.QuadIndices()
|
|
img1.DrawTriangles(img0, quadVertices(w, h, 1, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
img0.DrawTriangles(img1, quadVertices(w, h, 1, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
if err := ResolveStaleImages(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := RestoreIfNeeded(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
testCases := []struct {
|
|
name string
|
|
out string
|
|
image *Image
|
|
}{
|
|
{
|
|
"0",
|
|
"*-*-",
|
|
img0,
|
|
},
|
|
{
|
|
"1",
|
|
"-*--",
|
|
img1,
|
|
},
|
|
}
|
|
for _, c := range testCases {
|
|
for i := 0; i < 4; i++ {
|
|
want := color.RGBA{}
|
|
if c.out[i] == '*' {
|
|
want = color.RGBA{0xff, 0xff, 0xff, 0xff}
|
|
}
|
|
got := pixelsToColor(c.image.BasePixelsForTesting(), i, 0)
|
|
if !sameColors(got, want, 1) {
|
|
t.Errorf("%s[%d]: got %v, want %v", c.name, i, got, want)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestReplacePixels(t *testing.T) {
|
|
img := NewImage(17, 31, false)
|
|
defer img.Dispose()
|
|
|
|
pix := make([]byte, 4*4*4)
|
|
for i := range pix {
|
|
pix[i] = 0xff
|
|
}
|
|
img.ReplacePixels(pix, 5, 7, 4, 4)
|
|
// Check the region (5, 7)-(9, 11). Outside state is indeterministic.
|
|
for j := 7; j < 11; j++ {
|
|
for i := 5; i < 9; i++ {
|
|
r, g, b, a, err := img.At(i, j)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
got := color.RGBA{r, g, b, a}
|
|
want := color.RGBA{0xff, 0xff, 0xff, 0xff}
|
|
if got != want {
|
|
t.Errorf("img.At(%d, %d): got: %v, want: %v", i, j, got, want)
|
|
}
|
|
}
|
|
}
|
|
if err := ResolveStaleImages(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := RestoreIfNeeded(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
for j := 7; j < 11; j++ {
|
|
for i := 5; i < 9; i++ {
|
|
r, g, b, a, err := img.At(i, j)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
got := color.RGBA{r, g, b, a}
|
|
want := color.RGBA{0xff, 0xff, 0xff, 0xff}
|
|
if got != want {
|
|
t.Errorf("img.At(%d, %d): got: %v, want: %v", i, j, got, want)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestDrawTrianglesAndReplacePixels(t *testing.T) {
|
|
base := image.NewRGBA(image.Rect(0, 0, 1, 1))
|
|
base.Pix[0] = 0xff
|
|
base.Pix[1] = 0
|
|
base.Pix[2] = 0
|
|
base.Pix[3] = 0xff
|
|
img0 := newImageFromImage(base)
|
|
defer img0.Dispose()
|
|
img1 := NewImage(2, 1, false)
|
|
defer img1.Dispose()
|
|
|
|
vs := quadVertices(1, 1, 0, 0)
|
|
is := graphics.QuadIndices()
|
|
img1.DrawTriangles(img0, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
img1.ReplacePixels([]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, 0, 0, 2, 1)
|
|
|
|
if err := ResolveStaleImages(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := RestoreIfNeeded(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
r, g, b, a, err := img1.At(0, 0)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
got := color.RGBA{r, g, b, a}
|
|
want := color.RGBA{0xff, 0xff, 0xff, 0xff}
|
|
if !sameColors(got, want, 1) {
|
|
t.Errorf("got: %v, want: %v", got, want)
|
|
}
|
|
}
|
|
|
|
func TestDispose(t *testing.T) {
|
|
base0 := image.NewRGBA(image.Rect(0, 0, 1, 1))
|
|
img0 := newImageFromImage(base0)
|
|
defer img0.Dispose()
|
|
|
|
base1 := image.NewRGBA(image.Rect(0, 0, 1, 1))
|
|
img1 := newImageFromImage(base1)
|
|
|
|
base2 := image.NewRGBA(image.Rect(0, 0, 1, 1))
|
|
base2.Pix[0] = 0xff
|
|
base2.Pix[1] = 0xff
|
|
base2.Pix[2] = 0xff
|
|
base2.Pix[3] = 0xff
|
|
img2 := newImageFromImage(base2)
|
|
defer img2.Dispose()
|
|
|
|
is := graphics.QuadIndices()
|
|
img1.DrawTriangles(img2, quadVertices(1, 1, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
img0.DrawTriangles(img1, quadVertices(1, 1, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
img1.Dispose()
|
|
|
|
if err := ResolveStaleImages(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := RestoreIfNeeded(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
r, g, b, a, err := img0.At(0, 0)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
got := color.RGBA{r, g, b, a}
|
|
want := color.RGBA{0xff, 0xff, 0xff, 0xff}
|
|
if !sameColors(got, want, 1) {
|
|
t.Errorf("got: %v, want: %v", got, want)
|
|
}
|
|
}
|
|
|
|
func TestReplacePixelsPart(t *testing.T) {
|
|
pix := make([]uint8, 4*2*2)
|
|
for i := range pix {
|
|
pix[i] = 0xff
|
|
}
|
|
|
|
img := NewImage(4, 4, false)
|
|
// This doesn't make the image stale. Its base pixels are available.
|
|
img.ReplacePixels(pix, 1, 1, 2, 2)
|
|
|
|
cases := []struct {
|
|
i int
|
|
j int
|
|
want color.RGBA
|
|
}{
|
|
{
|
|
i: 0,
|
|
j: 0,
|
|
want: color.RGBA{0, 0, 0, 0},
|
|
},
|
|
{
|
|
i: 3,
|
|
j: 0,
|
|
want: color.RGBA{0, 0, 0, 0},
|
|
},
|
|
{
|
|
i: 0,
|
|
j: 1,
|
|
want: color.RGBA{0, 0, 0, 0},
|
|
},
|
|
{
|
|
i: 1,
|
|
j: 1,
|
|
want: color.RGBA{0xff, 0xff, 0xff, 0xff},
|
|
},
|
|
{
|
|
i: 3,
|
|
j: 1,
|
|
want: color.RGBA{0, 0, 0, 0},
|
|
},
|
|
{
|
|
i: 0,
|
|
j: 2,
|
|
want: color.RGBA{0, 0, 0, 0},
|
|
},
|
|
{
|
|
i: 2,
|
|
j: 2,
|
|
want: color.RGBA{0xff, 0xff, 0xff, 0xff},
|
|
},
|
|
{
|
|
i: 3,
|
|
j: 2,
|
|
want: color.RGBA{0, 0, 0, 0},
|
|
},
|
|
{
|
|
i: 0,
|
|
j: 3,
|
|
want: color.RGBA{0, 0, 0, 0},
|
|
},
|
|
{
|
|
i: 3,
|
|
j: 3,
|
|
want: color.RGBA{0, 0, 0, 0},
|
|
},
|
|
}
|
|
for _, c := range cases {
|
|
got := pixelsToColor(img.BasePixelsForTesting(), c.i, c.j)
|
|
want := c.want
|
|
if got != want {
|
|
t.Errorf("base pixel (%d, %d): got %v, want %v", c.i, c.j, got, want)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestReplacePixelsOnly(t *testing.T) {
|
|
const w, h = 128, 128
|
|
img0 := NewImage(w, h, false)
|
|
defer img0.Dispose()
|
|
img1 := NewImage(1, 1, false)
|
|
defer img1.Dispose()
|
|
|
|
for i := 0; i < w*h; i += 5 {
|
|
img0.ReplacePixels([]byte{1, 2, 3, 4}, i%w, i/w, 1, 1)
|
|
}
|
|
|
|
vs := quadVertices(1, 1, 0, 0)
|
|
is := graphics.QuadIndices()
|
|
img1.DrawTriangles(img0, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
img0.ReplacePixels([]byte{5, 6, 7, 8}, 0, 0, 1, 1)
|
|
|
|
// BasePixelsForTesting is available without GPU accessing.
|
|
for j := 0; j < h; j++ {
|
|
for i := 0; i < w; i++ {
|
|
idx := j*w + i
|
|
var want color.RGBA
|
|
switch {
|
|
case idx == 0:
|
|
want = color.RGBA{5, 6, 7, 8}
|
|
case idx%5 == 0:
|
|
want = color.RGBA{1, 2, 3, 4}
|
|
}
|
|
got := pixelsToColor(img0.BasePixelsForTesting(), i, j)
|
|
if !sameColors(got, want, 0) {
|
|
t.Errorf("got %v, want %v", got, want)
|
|
}
|
|
}
|
|
}
|
|
|
|
if err := ResolveStaleImages(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := RestoreIfNeeded(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
want := color.RGBA{1, 2, 3, 4}
|
|
got := pixelsToColor(img1.BasePixelsForTesting(), 0, 0)
|
|
if !sameColors(got, want, 0) {
|
|
t.Errorf("got %v, want %v", got, want)
|
|
}
|
|
}
|
|
|
|
// TODO: How about volatile/screen images?
|
|
|
|
// Issue #793
|
|
func TestReadPixelsFromVolatileImage(t *testing.T) {
|
|
const w, h = 16, 16
|
|
dst := NewImage(w, h, true /* volatile */)
|
|
src := NewImage(w, h, false)
|
|
|
|
// First, make sure that dst has pixels
|
|
dst.ReplacePixels(make([]byte, 4*w*h), 0, 0, w, h)
|
|
|
|
// Second, draw src to dst. If the implementation is correct, dst becomes stale.
|
|
pix := make([]byte, 4*w*h)
|
|
for i := range pix {
|
|
pix[i] = 0xff
|
|
}
|
|
src.ReplacePixels(pix, 0, 0, w, h)
|
|
vs := quadVertices(1, 1, 0, 0)
|
|
is := graphics.QuadIndices()
|
|
dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
|
|
// Read the pixels. If the implementation is correct, dst tries to read its pixels from GPU due to being
|
|
// stale.
|
|
want := byte(0xff)
|
|
got, _, _, _, err := dst.At(0, 0)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if got != want {
|
|
t.Errorf("got: %v, want: %v", got, want)
|
|
}
|
|
}
|
|
|
|
func TestAllowReplacePixelsAfterDrawTriangles(t *testing.T) {
|
|
const w, h = 16, 16
|
|
src := NewImage(w, h, false)
|
|
dst := NewImage(w, h, false)
|
|
|
|
vs := quadVertices(w, h, 0, 0)
|
|
is := graphics.QuadIndices()
|
|
dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
dst.ReplacePixels(make([]byte, 4*w*h), 0, 0, w, h)
|
|
// ReplacePixels for a whole image doesn't panic.
|
|
}
|
|
|
|
func TestDisallowReplacePixelsForPartAfterDrawTriangles(t *testing.T) {
|
|
defer func() {
|
|
if r := recover(); r == nil {
|
|
t.Errorf("ReplacePixels for a part after DrawTriangles must panic but not")
|
|
}
|
|
}()
|
|
|
|
const w, h = 16, 16
|
|
src := NewImage(w, h, false)
|
|
dst := NewImage(w, h, false)
|
|
|
|
vs := quadVertices(w, h, 0, 0)
|
|
is := graphics.QuadIndices()
|
|
dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
dst.ReplacePixels(make([]byte, 4), 0, 0, 1, 1)
|
|
}
|
|
|
|
func TestExtend(t *testing.T) {
|
|
pixAt := func(i, j int) byte {
|
|
return byte(17*i + 13*j + 0x40)
|
|
}
|
|
|
|
const w, h = 16, 16
|
|
orig := NewImage(w, h, false)
|
|
pix := make([]byte, 4*w*h)
|
|
for j := 0; j < h; j++ {
|
|
for i := 0; i < w; i++ {
|
|
idx := j*w + i
|
|
v := pixAt(i, j)
|
|
pix[4*idx] = v
|
|
pix[4*idx+1] = v
|
|
pix[4*idx+2] = v
|
|
pix[4*idx+3] = v
|
|
}
|
|
}
|
|
|
|
orig.ReplacePixels(pix, 0, 0, w, h)
|
|
extended := orig.Extend(w*2, h*2) // After this, orig is already disposed.
|
|
|
|
for j := 0; j < h*2; j++ {
|
|
for i := 0; i < w*2; i++ {
|
|
got, _, _, _, err := extended.At(i, j)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
want := byte(0)
|
|
if i < w && j < h {
|
|
want = pixAt(i, j)
|
|
}
|
|
if got != want {
|
|
t.Errorf("extended.At(%d, %d): got: %v, want: %v", i, j, got, want)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestClearPixels(t *testing.T) {
|
|
const w, h = 16, 16
|
|
img := NewImage(w, h, false)
|
|
img.ReplacePixels(make([]byte, 4*4*4), 0, 0, 4, 4)
|
|
img.ReplacePixels(make([]byte, 4*4*4), 4, 0, 4, 4)
|
|
img.ClearPixels(0, 0, 4, 4)
|
|
img.ClearPixels(4, 0, 4, 4)
|
|
|
|
// After clearing, the regions will be available again.
|
|
img.ReplacePixels(make([]byte, 4*8*4), 0, 0, 8, 4)
|
|
}
|
|
|
|
func TestFill(t *testing.T) {
|
|
const w, h = 16, 16
|
|
img := NewImage(w, h, false)
|
|
img.Fill(color.RGBA{0xff, 0, 0, 0xff})
|
|
if err := ResolveStaleImages(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := RestoreIfNeeded(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
for j := 0; j < h; j++ {
|
|
for i := 0; i < w; i++ {
|
|
r, g, b, a, err := img.At(i, j)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
got := color.RGBA{r, g, b, a}
|
|
want := color.RGBA{0xff, 0, 0, 0xff}
|
|
if got != want {
|
|
t.Errorf("img.At(%d, %d): got: %v, want: %v", i, j, got, want)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Issue #1170
|
|
func TestFill2(t *testing.T) {
|
|
const w, h = 16, 16
|
|
src := NewImage(w, h, false)
|
|
src.Fill(color.RGBA{0xff, 0, 0, 0xff})
|
|
|
|
dst := NewImage(w, h, false)
|
|
vs := quadVertices(w, h, 0, 0)
|
|
is := graphics.QuadIndices()
|
|
dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
|
|
// Fill src with a different color. This should not affect dst.
|
|
src.Fill(color.RGBA{0, 0xff, 0, 0xff})
|
|
|
|
if err := ResolveStaleImages(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := RestoreIfNeeded(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
for j := 0; j < h; j++ {
|
|
for i := 0; i < w; i++ {
|
|
got := pixelsToColor(dst.BasePixelsForTesting(), i, j)
|
|
want := color.RGBA{0xff, 0, 0, 0xff}
|
|
if got != want {
|
|
t.Errorf("img.At(%d, %d): got: %v, want: %v", i, j, got, want)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestMutateSlices(t *testing.T) {
|
|
const w, h = 16, 16
|
|
dst := NewImage(w, h, false)
|
|
src := NewImage(w, h, false)
|
|
pix := make([]byte, 4*w*h)
|
|
for i := 0; i < w*h; i++ {
|
|
pix[4*i] = byte(i)
|
|
pix[4*i+1] = byte(i)
|
|
pix[4*i+2] = byte(i)
|
|
pix[4*i+3] = 0xff
|
|
}
|
|
src.ReplacePixels(pix, 0, 0, w, h)
|
|
|
|
vs := quadVertices(w, h, 0, 0)
|
|
is := make([]uint16, len(graphics.QuadIndices()))
|
|
copy(is, graphics.QuadIndices())
|
|
dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
|
|
for i := range vs {
|
|
vs[i] = 0
|
|
}
|
|
for i := range is {
|
|
is[i] = 0
|
|
}
|
|
if err := ResolveStaleImages(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := RestoreIfNeeded(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
for j := 0; j < h; j++ {
|
|
for i := 0; i < w; i++ {
|
|
r, g, b, a, err := src.At(i, j)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
want := color.RGBA{r, g, b, a}
|
|
r, g, b, a, err = dst.At(i, j)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
got := color.RGBA{r, g, b, a}
|
|
if !sameColors(got, want, 1) {
|
|
t.Errorf("(%d, %d): got %v, want %v", i, j, got, want)
|
|
}
|
|
}
|
|
}
|
|
}
|