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pixels: Remove image member

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This commit is contained in:
Hajime Hoshi 2016-07-27 12:24:30 +09:00
parent 3bc2239a3b
commit 9b6b5372ef
2 changed files with 11 additions and 23 deletions
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13
imageimpl.go
View File

@ -34,7 +34,7 @@ type imageImpl struct {
width int
height int
filter Filter
pixels *pixels.Pixels
pixels pixels.Pixels
volatile bool
screen bool
m sync.Mutex
@ -51,7 +51,6 @@ func newImageImpl(width, height int, filter Filter, volatile bool) (*imageImpl,
height: height,
filter: filter,
volatile: volatile,
pixels: pixels.NewPixels(img),
}
runtime.SetFinalizer(i, (*imageImpl).Dispose)
return i, nil
@ -83,7 +82,6 @@ func newImageImplFromImage(source image.Image, filter Filter) (*imageImpl, error
width: w,
height: h,
filter: filter,
pixels: pixels.NewPixels(img),
}
i.pixels.ReplacePixels(p)
runtime.SetFinalizer(i, (*imageImpl).Dispose)
@ -101,7 +99,6 @@ func newScreenImageImpl(width, height int) (*imageImpl, error) {
height: height,
volatile: true,
screen: true,
pixels: pixels.NewPixels(img),
}
runtime.SetFinalizer(i, (*imageImpl).Dispose)
return i, nil
@ -181,7 +178,7 @@ func (i *imageImpl) At(x, y int, context *opengl.Context) color.Color {
return color.Transparent
}
idx := 4*x + 4*y*i.width
clr, err := i.pixels.At(idx, context)
clr, err := i.pixels.At(idx, i.image, context)
if err != nil {
panic(err)
}
@ -197,7 +194,7 @@ func (i *imageImpl) ensurePixels(context *opengl.Context) error {
if i.volatile {
return nil
}
if err := i.pixels.ReadPixelsFromVRAMIfStale(context); err != nil {
if err := i.pixels.ReadPixelsFromVRAMIfStale(i.image, context); err != nil {
return err
}
return nil
@ -225,7 +222,7 @@ func (i *imageImpl) resetPixelsIfDependingOn(target *imageImpl, context *opengl.
i.pixels.MakeStale()
return nil
}
if err := i.pixels.ReadPixelsFromVRAM(context); err != nil {
if err := i.pixels.ReadPixelsFromVRAM(i.image, context); err != nil {
return err
}
return nil
@ -282,7 +279,7 @@ func (i *imageImpl) Dispose() error {
}
i.image = nil
i.disposed = true
i.pixels = nil
i.pixels.Clear()
runtime.SetFinalizer(i, nil)
return nil
}

21
internal/pixels/pixels.go
View File

@ -33,8 +33,6 @@ type drawImageHistoryItem struct {
// Pixels represents pixels of an image for restoring when GL context is lost.
type Pixels struct {
image *graphics.Image
// basePixels and baseColor are exclusive.
basePixels []uint8
baseColor color.Color
@ -42,12 +40,6 @@ type Pixels struct {
stale bool
}
func NewPixels(image *graphics.Image) *Pixels {
return &Pixels{
image: image,
}
}
func (p *Pixels) MakeStale() {
p.basePixels = nil
p.baseColor = nil
@ -97,9 +89,9 @@ func (p *Pixels) AppendDrawImageHistory(image *graphics.Image, vertices []int16,
//
// Note that this must not be called until context is available.
// This means Pixels members must match with acutal state in VRAM.
func (p *Pixels) At(idx int, context *opengl.Context) (color.Color, error) {
func (p *Pixels) At(idx int, image *graphics.Image, context *opengl.Context) (color.Color, error) {
if p.basePixels == nil || p.drawImageHistory != nil || p.stale {
if err := p.ReadPixelsFromVRAM(context); err != nil {
if err := p.ReadPixelsFromVRAM(image, context); err != nil {
return nil, err
}
}
@ -119,9 +111,9 @@ func (p *Pixels) DependsOn(target *graphics.Image) bool {
return false
}
func (p *Pixels) ReadPixelsFromVRAM(context *opengl.Context) error {
func (p *Pixels) ReadPixelsFromVRAM(image *graphics.Image, context *opengl.Context) error {
var err error
p.basePixels, err = p.image.Pixels(context)
p.basePixels, err = image.Pixels(context)
if err != nil {
return err
}
@ -131,11 +123,11 @@ func (p *Pixels) ReadPixelsFromVRAM(context *opengl.Context) error {
return nil
}
func (p *Pixels) ReadPixelsFromVRAMIfStale(context *opengl.Context) error {
func (p *Pixels) ReadPixelsFromVRAMIfStale(image *graphics.Image, context *opengl.Context) error {
if !p.stale {
return nil
}
return p.ReadPixelsFromVRAM(context)
return p.ReadPixelsFromVRAM(image, context)
}
func (p *Pixels) HasDependency() bool {
@ -177,7 +169,6 @@ func (p *Pixels) CreateImage(context *opengl.Context, width, height int, filter
return nil, err
}
}
p.image = gimg
p.basePixels, err = gimg.Pixels(context)
if err != nil {
return nil, err