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graphicsutil: Accept matrix parameters directly for performance

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This commit is contained in:
Hajime Hoshi 2018-06-17 20:38:07 +09:00
parent 459600e507
commit 840c4d24df
6 changed files with 34 additions and 92 deletions
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20
image.go
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@ -126,14 +126,6 @@ func (i *Image) fill(r, g, b, a uint8) {
_ = i.DrawImage(emptyImage, op) _ = i.DrawImage(emptyImage, op)
} }
type geoM32 struct {
inner *GeoM
}
func (g geoM32) Elements() (a, b, c, d, tx, ty float32) {
return g.inner.elements()
}
// DrawImage draws the given image on the image i. // DrawImage draws the given image on the image i.
// //
// DrawImage accepts the options. For details, see the document of DrawImageOptions. // DrawImage accepts the options. For details, see the document of DrawImageOptions.
@ -219,7 +211,7 @@ func (i *Image) DrawImage(img *Image, options *DrawImageOptions) error {
sy1 = r.Max.Y sy1 = r.Max.Y
} }
} }
geom := geoM32{&options.GeoM} geom := &options.GeoM
if sx0 < 0 || sy0 < 0 { if sx0 < 0 || sy0 < 0 {
dx := 0.0 dx := 0.0
dy := 0.0 dy := 0.0
@ -231,10 +223,9 @@ func (i *Image) DrawImage(img *Image, options *DrawImageOptions) error {
dy = -float64(sy0) dy = -float64(sy0)
sy0 = 0 sy0 = 0
} }
g := &GeoM{} geom = &GeoM{}
g.Translate(dx, dy) geom.Translate(dx, dy)
g.Concat(options.GeoM) geom.Concat(options.GeoM)
geom = geoM32{g}
} }
mode := opengl.CompositeMode(options.CompositeMode) mode := opengl.CompositeMode(options.CompositeMode)
@ -246,7 +237,8 @@ func (i *Image) DrawImage(img *Image, options *DrawImageOptions) error {
filter = graphics.Filter(img.filter) filter = graphics.Filter(img.filter)
} }
i.shareableImage.DrawImage(img.shareableImage, sx0, sy0, sx1, sy1, geom, options.ColorM.impl, mode, filter) a, b, c, d, tx, ty := geom.elements()
i.shareableImage.DrawImage(img.shareableImage, sx0, sy0, sx1, sy1, a, b, c, d, tx, ty, options.ColorM.impl, mode, filter)
return nil return nil
} }

11
internal/graphicsutil/vertices.go
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@ -43,15 +43,11 @@ func (v *verticesBackend) sliceForOneQuad() []float32 {
return s return s
} }
type GeoM interface {
Elements() (a, b, c, d, tx, ty float32)
}
func isPowerOf2(x int) bool { func isPowerOf2(x int) bool {
return (x & (x - 1)) == 0 return (x & (x - 1)) == 0
} }
func QuadVertices(width, height int, sx0, sy0, sx1, sy1 int, geom GeoM) []float32 { func QuadVertices(width, height int, sx0, sy0, sx1, sy1 int, a, b, c, d, tx, ty float32) []float32 {
if !isPowerOf2(width) { if !isPowerOf2(width) {
panic("not reached") panic("not reached")
} }
@ -69,13 +65,12 @@ func QuadVertices(width, height int, sx0, sy0, sx1, sy1 int, geom GeoM) []float3
wf := float32(width) wf := float32(width)
hf := float32(height) hf := float32(height)
u0, v0, u1, v1 := float32(sx0)/wf, float32(sy0)/hf, float32(sx1)/wf, float32(sy1)/hf u0, v0, u1, v1 := float32(sx0)/wf, float32(sy0)/hf, float32(sx1)/wf, float32(sy1)/hf
return quadVerticesImpl(float32(sx1-sx0), float32(sy1-sy0), u0, v0, u1, v1, geom) return quadVerticesImpl(float32(sx1-sx0), float32(sy1-sy0), u0, v0, u1, v1, a, b, c, d, tx, ty)
} }
func quadVerticesImpl(x, y, u0, v0, u1, v1 float32, geom GeoM) []float32 { func quadVerticesImpl(x, y, u0, v0, u1, v1, a, b, c, d, tx, ty float32) []float32 {
vs := theVerticesBackend.sliceForOneQuad() vs := theVerticesBackend.sliceForOneQuad()
a, b, c, d, tx, ty := geom.Elements()
ax, by, cx, dy := a*x, b*y, c*x, d*y ax, by, cx, dy := a*x, b*y, c*x, d*y
// Vertex coordinates // Vertex coordinates

20
internal/restorable/image.go
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@ -136,17 +136,6 @@ var (
quadIndices = []uint16{0, 1, 2, 1, 2, 3} quadIndices = []uint16{0, 1, 2, 1, 2, 3}
) )
type geoM struct {
scaleX float32
scaleY float32
tx float32
ty float32
}
func (g *geoM) Elements() (a, b, c, d, tx, ty float32) {
return g.scaleX, 0, 0, g.scaleY, g.tx, g.ty
}
// ReplacePixels replaces the image pixels with the given pixels slice. // ReplacePixels replaces the image pixels with the given pixels slice.
// //
// If pixels is nil, ReplacePixels clears the specified reagion. // If pixels is nil, ReplacePixels clears the specified reagion.
@ -172,12 +161,9 @@ func (i *Image) ReplacePixels(pixels []byte, x, y, width, height int) {
// and this image can be restored without dummyImage. // and this image can be restored without dummyImage.
w, h := dummyImage.Size() w, h := dummyImage.Size()
colorm := (*affine.ColorM)(nil).Scale(0, 0, 0, 0) colorm := (*affine.ColorM)(nil).Scale(0, 0, 0, 0)
vs := graphicsutil.QuadVertices(w, h, 0, 0, w, h, &geoM{ vs := graphicsutil.QuadVertices(w, h, 0, 0, w, h,
scaleX: float32(width) / float32(w), float32(width)/float32(w), 0, 0, float32(height)/float32(h),
scaleY: float32(height) / float32(h), float32(x), float32(y))
tx: float32(x),
ty: float32(y),
})
i.image.DrawImage(dummyImage.image, vs, quadIndices, colorm, opengl.CompositeModeCopy, graphics.FilterNearest) i.image.DrawImage(dummyImage.image, vs, quadIndices, colorm, opengl.CompositeModeCopy, graphics.FilterNearest)
} }

47
internal/restorable/images_test.go
View File

@ -105,12 +105,6 @@ var (
quadIndices = []uint16{0, 1, 2, 1, 2, 3} quadIndices = []uint16{0, 1, 2, 1, 2, 3}
) )
type idGeoM struct{}
func (idGeoM) Elements() (a, b, c, d, tx, ty float32) {
return 1, 0, 0, 1, 0, 0
}
func TestRestoreChain(t *testing.T) { func TestRestoreChain(t *testing.T) {
const num = 10 const num = 10
imgs := []*Image{} imgs := []*Image{}
@ -128,7 +122,7 @@ func TestRestoreChain(t *testing.T) {
fill(imgs[0], clr.R, clr.G, clr.B, clr.A) fill(imgs[0], clr.R, clr.G, clr.B, clr.A)
for i := 0; i < num-1; i++ { for i := 0; i < num-1; i++ {
w, h := imgs[i].Size() w, h := imgs[i].Size()
vs := graphicsutil.QuadVertices(w, h, 0, 0, 1, 1, idGeoM{}) vs := graphicsutil.QuadVertices(w, h, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0)
imgs[i+1].DrawImage(imgs[i], vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest) imgs[i+1].DrawImage(imgs[i], vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest)
} }
if err := ResolveStaleImages(); err != nil { if err := ResolveStaleImages(); err != nil {
@ -171,7 +165,7 @@ func TestRestoreChain2(t *testing.T) {
clr8 := color.RGBA{0x00, 0x00, 0xff, 0xff} clr8 := color.RGBA{0x00, 0x00, 0xff, 0xff}
fill(imgs[8], clr8.R, clr8.G, clr8.B, clr8.A) fill(imgs[8], clr8.R, clr8.G, clr8.B, clr8.A)
vs := graphicsutil.QuadVertices(w, h, 0, 0, w, h, idGeoM{}) vs := graphicsutil.QuadVertices(w, h, 0, 0, w, h, 1, 0, 0, 1, 0, 0)
imgs[8].DrawImage(imgs[7], vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest) imgs[8].DrawImage(imgs[7], vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest)
imgs[9].DrawImage(imgs[8], vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest) imgs[9].DrawImage(imgs[8], vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest)
for i := 0; i < 7; i++ { for i := 0; i < 7; i++ {
@ -218,7 +212,7 @@ func TestRestoreOverrideSource(t *testing.T) {
clr0 := color.RGBA{0x00, 0x00, 0x00, 0xff} clr0 := color.RGBA{0x00, 0x00, 0x00, 0xff}
clr1 := color.RGBA{0x00, 0x00, 0x01, 0xff} clr1 := color.RGBA{0x00, 0x00, 0x01, 0xff}
fill(img1, clr0.R, clr0.G, clr0.B, clr0.A) fill(img1, clr0.R, clr0.G, clr0.B, clr0.A)
vs := graphicsutil.QuadVertices(w, h, 0, 0, w, h, idGeoM{}) vs := graphicsutil.QuadVertices(w, h, 0, 0, w, h, 1, 0, 0, 1, 0, 0)
img2.DrawImage(img1, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest) img2.DrawImage(img1, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest)
img3.DrawImage(img2, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest) img3.DrawImage(img2, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest)
fill(img0, clr1.R, clr1.G, clr1.B, clr1.A) fill(img0, clr1.R, clr1.G, clr1.B, clr1.A)
@ -262,15 +256,6 @@ func TestRestoreOverrideSource(t *testing.T) {
} }
} }
type geoM struct {
tx float32
ty float32
}
func (g *geoM) Elements() (a, b, c, d, tx, ty float32) {
return 1, 0, 0, 1, g.tx, g.ty
}
func TestRestoreComplexGraph(t *testing.T) { func TestRestoreComplexGraph(t *testing.T) {
const ( const (
w = 4 w = 4
@ -313,23 +298,23 @@ func TestRestoreComplexGraph(t *testing.T) {
img1.Dispose() img1.Dispose()
img0.Dispose() img0.Dispose()
}() }()
vs := graphicsutil.QuadVertices(w, h, 0, 0, w, h, &geoM{0, 0}) vs := graphicsutil.QuadVertices(w, h, 0, 0, w, h, 1, 0, 0, 1, 0, 0)
img3.DrawImage(img0, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest) img3.DrawImage(img0, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest)
vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, &geoM{1, 0}) vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, 1, 0, 0, 1, 1, 0)
img3.DrawImage(img1, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest) img3.DrawImage(img1, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest)
vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, &geoM{1, 0}) vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, 1, 0, 0, 1, 1, 0)
img4.DrawImage(img1, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest) img4.DrawImage(img1, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest)
vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, &geoM{2, 0}) vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, 1, 0, 0, 1, 2, 0)
img4.DrawImage(img2, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest) img4.DrawImage(img2, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest)
vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, &geoM{0, 0}) vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, 1, 0, 0, 1, 0, 0)
img5.DrawImage(img3, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest) img5.DrawImage(img3, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest)
vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, &geoM{0, 0}) vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, 1, 0, 0, 1, 0, 0)
img6.DrawImage(img3, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest) img6.DrawImage(img3, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest)
vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, &geoM{1, 0}) vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, 1, 0, 0, 1, 1, 0)
img6.DrawImage(img4, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest) img6.DrawImage(img4, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest)
vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, &geoM{0, 0}) vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, 1, 0, 0, 1, 0, 0)
img7.DrawImage(img2, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest) img7.DrawImage(img2, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest)
vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, &geoM{2, 0}) vs = graphicsutil.QuadVertices(w, h, 0, 0, w, h, 1, 0, 0, 1, 2, 0)
img7.DrawImage(img3, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest) img7.DrawImage(img3, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest)
if err := ResolveStaleImages(); err != nil { if err := ResolveStaleImages(); err != nil {
t.Fatal(err) t.Fatal(err)
@ -422,7 +407,7 @@ func TestRestoreRecursive(t *testing.T) {
img1.Dispose() img1.Dispose()
img0.Dispose() img0.Dispose()
}() }()
vs := graphicsutil.QuadVertices(w, h, 0, 0, w, h, &geoM{1, 0}) vs := graphicsutil.QuadVertices(w, h, 0, 0, w, h, 1, 0, 0, 1, 1, 0)
img1.DrawImage(img0, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest) img1.DrawImage(img0, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest)
img0.DrawImage(img1, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest) img0.DrawImage(img1, vs, quadIndices, nil, opengl.CompositeModeSourceOver, graphics.FilterNearest)
if err := ResolveStaleImages(); err != nil { if err := ResolveStaleImages(); err != nil {
@ -519,7 +504,7 @@ func TestDrawImageAndReplacePixels(t *testing.T) {
img1 := NewImage(2, 1, false) img1 := NewImage(2, 1, false)
defer img1.Dispose() defer img1.Dispose()
vs := graphicsutil.QuadVertices(1, 1, 0, 0, 1, 1, idGeoM{}) vs := graphicsutil.QuadVertices(1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0)
img1.DrawImage(img0, vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest) img1.DrawImage(img0, vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest)
img1.ReplacePixels([]byte{0xff, 0xff, 0xff, 0xff}, 1, 0, 1, 1) img1.ReplacePixels([]byte{0xff, 0xff, 0xff, 0xff}, 1, 0, 1, 1)
@ -555,7 +540,7 @@ func TestDispose(t *testing.T) {
img2 := newImageFromImage(base2) img2 := newImageFromImage(base2)
defer img2.Dispose() defer img2.Dispose()
vs := graphicsutil.QuadVertices(1, 1, 0, 0, 1, 1, idGeoM{}) vs := graphicsutil.QuadVertices(1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0)
img1.DrawImage(img2, vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest) img1.DrawImage(img2, vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest)
img0.DrawImage(img1, vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest) img0.DrawImage(img1, vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest)
img1.Dispose() img1.Dispose()
@ -587,7 +572,7 @@ func TestDoubleResolve(t *testing.T) {
base.Pix[3] = 0xff base.Pix[3] = 0xff
img1 := newImageFromImage(base) img1 := newImageFromImage(base)
vs := graphicsutil.QuadVertices(1, 1, 0, 0, 1, 1, idGeoM{}) vs := graphicsutil.QuadVertices(1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0)
img0.DrawImage(img1, vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest) img0.DrawImage(img1, vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest)
img0.ReplacePixels([]uint8{0x00, 0xff, 0x00, 0xff}, 1, 1, 1, 1) img0.ReplacePixels([]uint8{0x00, 0xff, 0x00, 0xff}, 1, 1, 1, 1)
// Now img0 is stale. // Now img0 is stale.

14
internal/shareable/shareable.go
View File

@ -67,7 +67,7 @@ func (b *backend) TryAlloc(width, height int) (*packing.Node, bool) {
newImg := restorable.NewImage(s, s, false) newImg := restorable.NewImage(s, s, false)
oldImg := b.restorable oldImg := b.restorable
w, h := oldImg.Size() w, h := oldImg.Size()
vs := graphicsutil.QuadVertices(w, h, 0, 0, w, h, idGeoM{}) vs := graphicsutil.QuadVertices(w, h, 0, 0, w, h, 1, 0, 0, 1, 0, 0)
newImg.DrawImage(oldImg, vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest) newImg.DrawImage(oldImg, vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest)
oldImg.Dispose() oldImg.Dispose()
b.restorable = newImg b.restorable = newImg
@ -98,12 +98,6 @@ type Image struct {
node *packing.Node node *packing.Node
} }
type idGeoM struct{}
func (idGeoM) Elements() (a, b, c, d, tx, ty float32) {
return 1, 0, 0, 1, 0, 0
}
func (i *Image) ensureNotShared() { func (i *Image) ensureNotShared() {
if i.backend == nil { if i.backend == nil {
i.allocate(false) i.allocate(false)
@ -117,7 +111,7 @@ func (i *Image) ensureNotShared() {
x, y, w, h := i.region() x, y, w, h := i.region()
newImg := restorable.NewImage(w, h, false) newImg := restorable.NewImage(w, h, false)
vw, vh := i.backend.restorable.Size() vw, vh := i.backend.restorable.Size()
vs := graphicsutil.QuadVertices(vw, vh, x, y, x+w, y+h, idGeoM{}) vs := graphicsutil.QuadVertices(vw, vh, x, y, x+w, y+h, 1, 0, 0, 1, 0, 0)
newImg.DrawImage(i.backend.restorable, vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest) newImg.DrawImage(i.backend.restorable, vs, quadIndices, nil, opengl.CompositeModeCopy, graphics.FilterNearest)
i.dispose(false) i.dispose(false)
@ -141,7 +135,7 @@ func (i *Image) Size() (width, height int) {
return i.width, i.height return i.width, i.height
} }
func (i *Image) DrawImage(img *Image, sx0, sy0, sx1, sy1 int, geom graphicsutil.GeoM, colorm *affine.ColorM, mode opengl.CompositeMode, filter graphics.Filter) { func (i *Image) DrawImage(img *Image, sx0, sy0, sx1, sy1 int, a, b, c, d, tx, ty float32, colorm *affine.ColorM, mode opengl.CompositeMode, filter graphics.Filter) {
backendsM.Lock() backendsM.Lock()
defer backendsM.Unlock() defer backendsM.Unlock()
@ -165,7 +159,7 @@ func (i *Image) DrawImage(img *Image, sx0, sy0, sx1, sy1 int, geom graphicsutil.
dx, dy, _, _ := img.region() dx, dy, _, _ := img.region()
w, h := img.backend.restorable.SizePowerOf2() w, h := img.backend.restorable.SizePowerOf2()
vs := graphicsutil.QuadVertices(w, h, sx0+dx, sy0+dy, sx1+dx, sy1+dy, geom) vs := graphicsutil.QuadVertices(w, h, sx0+dx, sy0+dy, sx1+dx, sy1+dy, a, b, c, d, tx, ty)
i.backend.restorable.DrawImage(img.backend.restorable, vs, quadIndices, colorm, mode, filter) i.backend.restorable.DrawImage(img.backend.restorable, vs, quadIndices, colorm, mode, filter)
} }

14
internal/shareable/shareable_test.go
View File

@ -45,15 +45,6 @@ func TestMain(m *testing.M) {
const bigSize = 2049 const bigSize = 2049
type geoM struct {
tx float32
ty float32
}
func (g *geoM) Elements() (a, b, c, d, tx, ty float32) {
return 1, 0, 0, 1, g.tx, g.ty
}
func TestEnsureNotShared(t *testing.T) { func TestEnsureNotShared(t *testing.T) {
// Create img1 and img2 with this size so that the next images are allocated // Create img1 and img2 with this size so that the next images are allocated
// with non-upper-left location. // with non-upper-left location.
@ -93,8 +84,7 @@ func TestEnsureNotShared(t *testing.T) {
dy1 = size * 3 / 4 dy1 = size * 3 / 4
) )
// img4.ensureNotShared() should be called. // img4.ensureNotShared() should be called.
geom := &geoM{size / 4, size / 4} img4.DrawImage(img3, 0, 0, size/2, size/2, 1, 0, 0, 1, size/4, size/4, nil, opengl.CompositeModeCopy, graphics.FilterNearest)
img4.DrawImage(img3, 0, 0, size/2, size/2, geom, nil, opengl.CompositeModeCopy, graphics.FilterNearest)
for j := 0; j < size; j++ { for j := 0; j < size; j++ {
for i := 0; i < size; i++ { for i := 0; i < size; i++ {
@ -115,5 +105,5 @@ func TestEnsureNotShared(t *testing.T) {
// Check further drawing doesn't cause panic. // Check further drawing doesn't cause panic.
// This bug was fixed by 03dcd948. // This bug was fixed by 03dcd948.
img4.DrawImage(img3, 0, 0, size/2, size/2, geom, nil, opengl.CompositeModeCopy, graphics.FilterNearest) img4.DrawImage(img3, 0, 0, size/2, size/2, 1, 0, 0, 1, size/4, size/4, nil, opengl.CompositeModeCopy, graphics.FilterNearest)
} }