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restorable: Remove arguments from restoring functions

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This commit is contained in:
Hajime Hoshi 2016-09-04 00:57:23 +09:00
parent 02151e48ea
commit b8b7e97511
2 changed files with 29 additions and 16 deletions
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6
imageimpl.go
View File

@ -233,18 +233,18 @@ func (i *imageImpl) restore(context *opengl.Context) error {
return nil
}
if i.screen {
if err := i.restorable.RestoreAsScreen(i.width, i.height); err != nil {
if err := i.restorable.RestoreAsScreen(); err != nil {
return err
}
return nil
}
if i.volatile {
if err := i.restorable.Recreate(i.width, i.height, glFilter(i.filter)); err != nil {
if err := i.restorable.Recreate(); err != nil {
return err
}
return nil
}
if err := i.restorable.RestoreImage(context, i.width, i.height, glFilter(i.filter)); err != nil {
if err := i.restorable.RestoreImage(context); err != nil {
return err
}
return nil

31
internal/restorable/image.go
View File

@ -34,6 +34,9 @@ type drawImageHistoryItem struct {
// Image represents an image of an image for restoring when GL context is lost.
type Image struct {
image *graphics.Image
width int
height int
filter opengl.Filter
// baseImage and baseColor are exclusive.
basePixels []uint8
@ -49,6 +52,9 @@ func NewImage(width, height int, filter opengl.Filter) (*Image, error) {
}
return &Image{
image: img,
width: width,
height: height,
filter: filter,
}, nil
}
@ -58,8 +64,13 @@ func NewImageFromImage(source *image.RGBA, filter opengl.Filter) (*Image, error)
// TODO: texture should be removed here?
return nil, err
}
size := source.Bounds().Size()
width, height := size.X, size.Y
return &Image{
image: img,
width: width,
height: height,
filter: filter,
}, nil
}
@ -70,6 +81,8 @@ func NewScreenFramebufferImage(width, height int) (*Image, error) {
}
return &Image{
image: img,
width: width,
height: height,
}, nil
}
@ -202,17 +215,17 @@ func (p *Image) HasDependency() bool {
}
// RestoreImage restores *graphics.Image from the pixels using its state.
func (p *Image) RestoreImage(context *opengl.Context, width, height int, filter opengl.Filter) error {
func (p *Image) RestoreImage(context *opengl.Context) error {
if p.stale {
return errors.New("restorable: pixels must not be stale when restoring")
}
img := image.NewRGBA(image.Rect(0, 0, width, height))
img := image.NewRGBA(image.Rect(0, 0, p.width, p.height))
if p.basePixels != nil {
for j := 0; j < height; j++ {
copy(img.Pix[j*img.Stride:], p.basePixels[j*width*4:(j+1)*width*4])
for j := 0; j < p.height; j++ {
copy(img.Pix[j*img.Stride:], p.basePixels[j*p.width*4:(j+1)*p.width*4])
}
}
gimg, err := graphics.NewImageFromImage(img, filter)
gimg, err := graphics.NewImageFromImage(img, p.filter)
if err != nil {
return err
}
@ -245,11 +258,11 @@ func (p *Image) RestoreImage(context *opengl.Context, width, height int, filter
return nil
}
func (p *Image) RestoreAsScreen(width, height int) error {
func (p *Image) RestoreAsScreen() error {
// The screen image should also be recreated because framebuffer might
// be changed.
var err error
p.image, err = graphics.NewScreenFramebufferImage(width, height)
p.image, err = graphics.NewScreenFramebufferImage(p.width, p.height)
if err != nil {
return err
}
@ -257,9 +270,9 @@ func (p *Image) RestoreAsScreen(width, height int) error {
return nil
}
func (p *Image) Recreate(width, height int, filter opengl.Filter) error {
func (p *Image) Recreate() error {
var err error
p.image, err = graphics.NewImage(width, height, filter)
p.image, err = graphics.NewImage(p.width, p.height, p.filter)
if err != nil {
return err
}