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graphics: Rename sharedImage -> shareableImage

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This commit is contained in:
Hajime Hoshi 2018-03-10 23:38:27 +09:00
parent 9d0ea5c241
commit 1556db74fa
3 changed files with 61 additions and 60 deletions
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2
graphicscontext.go
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@ -134,7 +134,7 @@ func (c *graphicsContext) needsRestoring() (bool, error) {
if web.IsBrowser() { if web.IsBrowser() {
return c.invalidated, nil return c.invalidated, nil
} }
return c.offscreen.sharedImagePart.IsInvalidated() return c.offscreen.shareableImagePart.IsInvalidated()
} }
func (c *graphicsContext) restoreIfNeeded() error { func (c *graphicsContext) restoreIfNeeded() error {

32
image.go
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@ -51,7 +51,7 @@ type Image struct {
// See strings.Builder for similar examples. // See strings.Builder for similar examples.
addr *Image addr *Image
sharedImagePart *sharedImagePart shareableImagePart *shareableImagePart
filter Filter filter Filter
} }
@ -70,7 +70,7 @@ func (i *Image) copyCheck() {
// Size returns the size of the image. // Size returns the size of the image.
func (i *Image) Size() (width, height int) { func (i *Image) Size() (width, height int) {
return i.sharedImagePart.Size() return i.shareableImagePart.Size()
} }
// Clear resets the pixels of the image into 0. // Clear resets the pixels of the image into 0.
@ -116,7 +116,7 @@ func (i *Image) fill(r, g, b, a uint8) {
} }
func (i *Image) isDisposed() bool { func (i *Image) isDisposed() bool {
return i.sharedImagePart == nil return i.shareableImagePart == nil
} }
// DrawImage draws the given image on the image i. // DrawImage draws the given image on the image i.
@ -154,7 +154,7 @@ func (i *Image) DrawImage(img *Image, options *DrawImageOptions) error {
if img.isDisposed() { if img.isDisposed() {
panic("ebiten: the given image to DrawImage must not be disposed") panic("ebiten: the given image to DrawImage must not be disposed")
} }
i.sharedImagePart.ensureNotShared() i.shareableImagePart.ensureNotShared()
// Compare i and img after ensuring i is not shared, or // Compare i and img after ensuring i is not shared, or
// i and img might share the same texture even though i != img. // i and img might share the same texture even though i != img.
@ -238,7 +238,7 @@ func (i *Image) DrawImage(img *Image, options *DrawImageOptions) error {
filter = graphics.Filter(img.filter) filter = graphics.Filter(img.filter)
} }
i.sharedImagePart.DrawImage(img.sharedImagePart, sx0, sy0, sx1, sy1, geom, options.ColorM.impl, mode, filter) i.shareableImagePart.DrawImage(img.shareableImagePart, sx0, sy0, sx1, sy1, geom, options.ColorM.impl, mode, filter)
return nil return nil
} }
@ -264,7 +264,7 @@ func (i *Image) At(x, y int) color.Color {
if i.isDisposed() { if i.isDisposed() {
return color.RGBA{} return color.RGBA{}
} }
clr, err := i.sharedImagePart.At(x, y) clr, err := i.shareableImagePart.At(x, y)
if err != nil { if err != nil {
panic(err) panic(err)
} }
@ -283,8 +283,8 @@ func (i *Image) Dispose() error {
if i.isDisposed() { if i.isDisposed() {
return nil return nil
} }
i.sharedImagePart.Dispose() i.shareableImagePart.Dispose()
i.sharedImagePart = nil i.shareableImagePart = nil
runtime.SetFinalizer(i, nil) runtime.SetFinalizer(i, nil)
return nil return nil
} }
@ -305,7 +305,7 @@ func (i *Image) ReplacePixels(p []byte) error {
if i.isDisposed() { if i.isDisposed() {
return nil return nil
} }
i.sharedImagePart.ReplacePixels(p) i.shareableImagePart.ReplacePixels(p)
return nil return nil
} }
@ -359,7 +359,7 @@ type DrawImageOptions struct {
func NewImage(width, height int, filter Filter) (*Image, error) { func NewImage(width, height int, filter Filter) (*Image, error) {
s := newSharedImagePart(width, height) s := newSharedImagePart(width, height)
i := &Image{ i := &Image{
sharedImagePart: s, shareableImagePart: s,
filter: filter, filter: filter,
} }
i.fill(0, 0, 0, 0) i.fill(0, 0, 0, 0)
@ -371,7 +371,7 @@ func NewImage(width, height int, filter Filter) (*Image, error) {
func newImageWithoutInit(width, height int) *Image { func newImageWithoutInit(width, height int) *Image {
s := newSharedImagePart(width, height) s := newSharedImagePart(width, height)
i := &Image{ i := &Image{
sharedImagePart: s, shareableImagePart: s,
filter: FilterDefault, filter: FilterDefault,
} }
runtime.SetFinalizer(i, (*Image).Dispose) runtime.SetFinalizer(i, (*Image).Dispose)
@ -396,8 +396,8 @@ func newImageWithoutInit(width, height int) *Image {
func newVolatileImage(width, height int, filter Filter) *Image { func newVolatileImage(width, height int, filter Filter) *Image {
r := restorable.NewImage(width, height, true) r := restorable.NewImage(width, height, true)
i := &Image{ i := &Image{
sharedImagePart: &sharedImagePart{ shareableImagePart: &shareableImagePart{
sharedImage: &sharedImage{ shareableImage: &shareableImage{
restorable: r, restorable: r,
}, },
}, },
@ -423,7 +423,7 @@ func NewImageFromImage(source image.Image, filter Filter) (*Image, error) {
s := newSharedImagePart(width, height) s := newSharedImagePart(width, height)
i := &Image{ i := &Image{
sharedImagePart: s, shareableImagePart: s,
filter: filter, filter: filter,
} }
runtime.SetFinalizer(i, (*Image).Dispose) runtime.SetFinalizer(i, (*Image).Dispose)
@ -435,8 +435,8 @@ func NewImageFromImage(source image.Image, filter Filter) (*Image, error) {
func newImageWithScreenFramebuffer(width, height int) *Image { func newImageWithScreenFramebuffer(width, height int) *Image {
r := restorable.NewScreenFramebufferImage(width, height) r := restorable.NewScreenFramebufferImage(width, height)
i := &Image{ i := &Image{
sharedImagePart: &sharedImagePart{ shareableImagePart: &shareableImagePart{
sharedImage: &sharedImage{ shareableImage: &shareableImage{
restorable: r, restorable: r,
}, },
}, },

77
shared.go
View File

@ -26,102 +26,103 @@ import (
"github.com/hajimehoshi/ebiten/internal/sync" "github.com/hajimehoshi/ebiten/internal/sync"
) )
type sharedImage struct { type shareableImage struct {
restorable *restorable.Image restorable *restorable.Image
page *packing.Page page *packing.Page
} }
var ( var (
theSharedImages = []*sharedImage{} // theSharedImages is a set of actually shared images.
theSharedImages = []*shareableImage{}
) )
type sharedImagePart struct { type shareableImagePart struct {
sharedImage *sharedImage shareableImage *shareableImage
// If node is nil, the image is not shared. // If node is nil, the image is not shared.
node *packing.Node node *packing.Node
} }
func (s *sharedImagePart) ensureNotShared() { func (s *shareableImagePart) ensureNotShared() {
if s.node == nil { if s.node == nil {
return return
} }
x, y, w, h := s.region() x, y, w, h := s.region()
newImg := restorable.NewImage(w, h, false) newImg := restorable.NewImage(w, h, false)
newImg.DrawImage(s.sharedImage.restorable, x, y, w, h, nil, nil, opengl.CompositeModeCopy, graphics.FilterNearest) newImg.DrawImage(s.shareableImage.restorable, x, y, w, h, nil, nil, opengl.CompositeModeCopy, graphics.FilterNearest)
s.Dispose() s.Dispose()
s.sharedImage = &sharedImage{ s.shareableImage = &shareableImage{
restorable: newImg, restorable: newImg,
} }
} }
func (s *sharedImagePart) region() (x, y, width, height int) { func (s *shareableImagePart) region() (x, y, width, height int) {
if s.node == nil { if s.node == nil {
w, h := s.sharedImage.restorable.Size() w, h := s.shareableImage.restorable.Size()
return 0, 0, w, h return 0, 0, w, h
} }
return s.node.Region() return s.node.Region()
} }
func (s *sharedImagePart) Size() (width, height int) { func (s *shareableImagePart) Size() (width, height int) {
_, _, w, h := s.region() _, _, w, h := s.region()
return w, h return w, h
} }
func (s *sharedImagePart) DrawImage(img *sharedImagePart, sx0, sy0, sx1, sy1 int, geom *affine.GeoM, colorm *affine.ColorM, mode opengl.CompositeMode, filter graphics.Filter) { func (s *shareableImagePart) DrawImage(img *shareableImagePart, sx0, sy0, sx1, sy1 int, geom *affine.GeoM, colorm *affine.ColorM, mode opengl.CompositeMode, filter graphics.Filter) {
dx, dy, _, _ := img.region() dx, dy, _, _ := img.region()
sx0 += dx sx0 += dx
sy0 += dy sy0 += dy
sx1 += dx sx1 += dx
sy1 += dy sy1 += dy
s.sharedImage.restorable.DrawImage(img.sharedImage.restorable, sx0, sy0, sx1, sy1, geom, colorm, mode, filter) s.shareableImage.restorable.DrawImage(img.shareableImage.restorable, sx0, sy0, sx1, sy1, geom, colorm, mode, filter)
} }
func (s *sharedImagePart) ReplacePixels(p []byte) { func (s *shareableImagePart) ReplacePixels(p []byte) {
x, y, w, h := s.region() x, y, w, h := s.region()
if l := 4 * w * h; len(p) != l { if l := 4 * w * h; len(p) != l {
panic(fmt.Sprintf("ebiten: len(p) was %d but must be %d", len(p), l)) panic(fmt.Sprintf("ebiten: len(p) was %d but must be %d", len(p), l))
} }
s.sharedImage.restorable.ReplacePixels(p, x, y, w, h) s.shareableImage.restorable.ReplacePixels(p, x, y, w, h)
} }
func (s *sharedImagePart) At(x, y int) (color.Color, error) { func (s *shareableImagePart) At(x, y int) (color.Color, error) {
ox, oy, w, h := s.region() ox, oy, w, h := s.region()
if x < 0 || y < 0 || x >= w || y >= h { if x < 0 || y < 0 || x >= w || y >= h {
return color.RGBA{}, nil return color.RGBA{}, nil
} }
return s.sharedImage.restorable.At(x+ox, y+oy) return s.shareableImage.restorable.At(x+ox, y+oy)
} }
func (s *sharedImagePart) isDisposed() bool { func (s *shareableImagePart) isDisposed() bool {
return s.sharedImage == nil return s.shareableImage == nil
} }
func (s *sharedImagePart) Dispose() { func (s *shareableImagePart) Dispose() {
if s.isDisposed() { if s.isDisposed() {
return return
} }
defer func() { defer func() {
s.sharedImage = nil s.shareableImage = nil
s.node = nil s.node = nil
}() }()
if s.node == nil { if s.node == nil {
s.sharedImage.restorable.Dispose() s.shareableImage.restorable.Dispose()
return return
} }
s.sharedImage.page.Free(s.node) s.shareableImage.page.Free(s.node)
if !s.sharedImage.page.IsEmpty() { if !s.shareableImage.page.IsEmpty() {
return return
} }
index := -1 index := -1
for i, sh := range theSharedImages { for i, sh := range theSharedImages {
if sh == s.sharedImage { if sh == s.shareableImage {
index = i index = i
break break
} }
@ -132,36 +133,36 @@ func (s *sharedImagePart) Dispose() {
theSharedImages = append(theSharedImages[:index], theSharedImages[index+1:]...) theSharedImages = append(theSharedImages[:index], theSharedImages[index+1:]...)
} }
func (s *sharedImagePart) IsInvalidated() (bool, error) { func (s *shareableImagePart) IsInvalidated() (bool, error) {
return s.sharedImage.restorable.IsInvalidated() return s.shareableImage.restorable.IsInvalidated()
} }
var sharedImageLock sync.Mutex var shareableImageLock sync.Mutex
func newSharedImagePart(width, height int) *sharedImagePart { func newSharedImagePart(width, height int) *shareableImagePart {
const maxSize = 2048 const maxSize = 2048
sharedImageLock.Lock() shareableImageLock.Lock()
defer sharedImageLock.Unlock() defer shareableImageLock.Unlock()
if width > maxSize || height > maxSize { if width > maxSize || height > maxSize {
s := &sharedImage{ s := &shareableImage{
restorable: restorable.NewImage(width, height, false), restorable: restorable.NewImage(width, height, false),
} }
return &sharedImagePart{ return &shareableImagePart{
sharedImage: s, shareableImage: s,
} }
} }
for _, s := range theSharedImages { for _, s := range theSharedImages {
if n := s.page.Alloc(width, height); n != nil { if n := s.page.Alloc(width, height); n != nil {
return &sharedImagePart{ return &shareableImagePart{
sharedImage: s, shareableImage: s,
node: n, node: n,
} }
} }
} }
s := &sharedImage{ s := &shareableImage{
restorable: restorable.NewImage(maxSize, maxSize, false), restorable: restorable.NewImage(maxSize, maxSize, false),
page: packing.NewPage(maxSize), page: packing.NewPage(maxSize),
} }
@ -171,8 +172,8 @@ func newSharedImagePart(width, height int) *sharedImagePart {
if n == nil { if n == nil {
panic("not reached") panic("not reached")
} }
return &sharedImagePart{ return &shareableImagePart{
sharedImage: s, shareableImage: s,
node: n, node: n,
} }
} }