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graphics: Image.Clear/Fill now always return nil (#331)

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This commit is contained in:
Hajime Hoshi 2017-03-04 00:53:49 +09:00
parent 1c7ce07edf
commit 7ba18a5d0d
2 changed files with 16 additions and 11 deletions
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22
image.go
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@ -144,18 +144,28 @@ func (i *Image) Size() (width, height int) {
// Clear resets the pixels of the image into 0.
//
// When the image is disposed, this function does nothing.
//
// This function always returns nil as of 1.5.0-alpha.
//
// This function is concurrent-safe.
func (i *Image) Clear() error {
theImagesForRestoring.resetPixelsIfDependingOn(i, glContext())
return i.impl.Fill(color.Transparent)
i.impl.Fill(color.Transparent)
return nil
}
// Fill fills the image with a solid color.
//
// When the image is disposed, this function does nothing.
//
// This function always returns nil as of 1.5.0-alpha.
//
// This function is concurrent-safe.
func (i *Image) Fill(clr color.Color) error {
theImagesForRestoring.resetPixelsIfDependingOn(i, glContext())
return i.impl.Fill(clr)
i.impl.Fill(clr)
return nil
}
// DrawImage draws the given image on the receiver image.
@ -254,9 +264,7 @@ func NewImage(width, height int, filter Filter) (*Image, error) {
if err != nil {
return nil, err
}
if err := img.Fill(color.Transparent); err != nil {
return nil, err
}
img.Fill(color.Transparent)
eimg, err := theImagesForRestoring.add(img)
if err != nil {
return nil, err
@ -280,9 +288,7 @@ func newVolatileImage(width, height int, filter Filter) (*Image, error) {
if err != nil {
return nil, err
}
if err := img.Fill(color.Transparent); err != nil {
return nil, err
}
img.Fill(color.Transparent)
eimg, err := theImagesForRestoring.add(img)
if err != nil {
return nil, err

5
imageimpl.go
View File

@ -90,15 +90,14 @@ func newScreenImageImpl(width, height int) (*imageImpl, error) {
return i, nil
}
func (i *imageImpl) Fill(clr color.Color) error {
func (i *imageImpl) Fill(clr color.Color) {
i.m.Lock()
defer i.m.Unlock()
if i.restorable == nil {
return errors.New("ebiten: image is already disposed")
return
}
rgba := color.RGBAModel.Convert(clr).(color.RGBA)
i.restorable.Fill(rgba)
return nil
}
func (i *imageImpl) clearIfVolatile() {