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graphics: Refactoring

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This commit is contained in:
Hajime Hoshi 2016-06-14 02:10:43 +09:00
parent ceea24ab95
commit 4d8897b785
1 changed files with 18 additions and 20 deletions
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38
graphicscontext.go
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@ -84,6 +84,22 @@ func (c *graphicsContext) initializeIfNeeded() error {
return nil return nil
} }
func (c *graphicsContext) drawToDefaultRenderTarget() error {
if err := c.defaultRenderTarget.Clear(); err != nil {
return err
}
scale := float64(c.screenScale)
options := &DrawImageOptions{}
options.GeoM.Scale(scale, scale)
if err := c.defaultRenderTarget.DrawImage(c.screen, options); err != nil {
return err
}
if err := c.flush(); err != nil {
return err
}
return nil
}
func (c *graphicsContext) UpdateAndDraw() error { func (c *graphicsContext) UpdateAndDraw() error {
if err := c.initializeIfNeeded(); err != nil { if err := c.initializeIfNeeded(); err != nil {
return err return err
@ -97,16 +113,7 @@ func (c *graphicsContext) UpdateAndDraw() error {
if IsRunningSlowly() { if IsRunningSlowly() {
return nil return nil
} }
if err := c.defaultRenderTarget.Clear(); err != nil { if err := c.drawToDefaultRenderTarget(); err != nil {
return err
}
scale := float64(c.screenScale)
options := &DrawImageOptions{}
options.GeoM.Scale(scale, scale)
if err := c.defaultRenderTarget.DrawImage(c.screen, options); err != nil {
return err
}
if err := c.flush(); err != nil {
return err return err
} }
exceptions := map[*imageImpl]struct{}{ exceptions := map[*imageImpl]struct{}{
@ -123,16 +130,7 @@ func (c *graphicsContext) Draw() error {
if err := c.initializeIfNeeded(); err != nil { if err := c.initializeIfNeeded(); err != nil {
return err return err
} }
if err := c.defaultRenderTarget.Clear(); err != nil { if err := c.drawToDefaultRenderTarget(); err != nil {
return err
}
scale := float64(c.screenScale)
options := &DrawImageOptions{}
options.GeoM.Scale(scale, scale)
if err := c.defaultRenderTarget.DrawImage(c.screen, options); err != nil {
return err
}
if err := c.flush(); err != nil {
return err return err
} }
return nil return nil