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internal/atlas: remove borders at the upper and the left sides

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Updates #2657
This commit is contained in:
Hajime Hoshi 2023-04-27 09:02:09 +09:00
parent 2a1d23d926
commit 6c5477adea
1 changed files with 23 additions and 32 deletions
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55
internal/atlas/image.go
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@ -373,7 +373,7 @@ func (i *Image) regionWithPadding() (x, y, width, height int) {
panic("atlas: backend must not be nil: not allocated yet?")
}
if !i.isOnAtlas() {
return 0, 0, i.width + 2*i.paddingSize(), i.height + 2*i.paddingSize()
return 0, 0, i.width + i.paddingSize(), i.height + i.paddingSize()
}
return i.node.Region()
}
@ -444,8 +444,7 @@ func (i *Image) drawTriangles(srcs [graphics.ShaderImageCount]*Image, vertices [
}
x, y, _, _ := i.regionWithPadding()
ps := i.paddingSize()
dx, dy := float32(x+ps), float32(y+ps)
dx, dy := float32(x), float32(y)
// TODO: Check if dstRegion does not to violate the region.
dstRegion.X += dx
@ -454,8 +453,7 @@ func (i *Image) drawTriangles(srcs [graphics.ShaderImageCount]*Image, vertices [
var oxf, oyf float32
if srcs[0] != nil {
ox, oy, _, _ := srcs[0].regionWithPadding()
ps := srcs[0].paddingSize()
oxf, oyf = float32(ox+ps), float32(oy+ps)
oxf, oyf = float32(ox), float32(oy)
n := len(vertices)
for i := 0; i < n; i += graphics.VertexFloatCount {
vertices[i] += dx
@ -493,9 +491,8 @@ func (i *Image) drawTriangles(srcs [graphics.ShaderImageCount]*Image, vertices [
continue
}
ox, oy, _, _ := src.regionWithPadding()
ps := src.paddingSize()
offsets[i][0] = float32(ox+ps) - oxf + subimageOffset[0]
offsets[i][1] = float32(oy+ps) - oyf + subimageOffset[1]
offsets[i][0] = float32(ox) - oxf + subimageOffset[0]
offsets[i][1] = float32(oy) - oyf + subimageOffset[1]
}
for i, src := range srcs {
if src == nil {
@ -546,8 +543,8 @@ func (i *Image) writePixels(pix []byte, x, y, width, height int) {
px, py, pw, ph := i.regionWithPadding()
if x != 0 || y != 0 || width != i.width || height != i.height || i.paddingSize() == 0 {
x += px + i.paddingSize()
y += py + i.paddingSize()
x += px
y += py
if pix == nil {
i.backend.restorable.WritePixels(nil, x, y, width, height)
@ -572,23 +569,18 @@ func (i *Image) writePixels(pix []byte, x, y, width, height int) {
}
rowPixels := 4 * pw
for i := 0; i < rowPixels; i++ {
pixb[i] = 0
pixb[rowPixels*(ph-1)+i] = 0
}
for j := 1; j < ph-1; j++ {
pixb[rowPixels*j] = 0
pixb[rowPixels*j+1] = 0
pixb[rowPixels*j+2] = 0
pixb[rowPixels*j+3] = 0
pixb[rowPixels*(j+1)-4] = 0
pixb[rowPixels*(j+1)-3] = 0
pixb[rowPixels*(j+1)-2] = 0
pixb[rowPixels*(j+1)-1] = 0
for j := 1; j < ph; j++ {
pixb[rowPixels*j-4] = 0
pixb[rowPixels*j-3] = 0
pixb[rowPixels*j-2] = 0
pixb[rowPixels*j-1] = 0
}
// Copy the content.
for j := 0; j < height; j++ {
copy(pixb[4*((j+paddingSize)*pw+paddingSize):], pix[4*j*width:4*(j+1)*width])
copy(pixb[4*j*pw:], pix[4*j*width:4*(j+1)*width])
}
x += px
@ -611,10 +603,9 @@ func (i *Image) ReadPixels(graphicsDriver graphicsdriver.Graphics, pixels []byte
return nil
}
ps := i.paddingSize()
ox, oy, _, _ := i.regionWithPadding()
x += ox + ps
y += oy + ps
x += ox
y += oy
return i.backend.restorable.ReadPixels(graphicsDriver, pixels, x, y, width, height)
}
@ -697,7 +688,7 @@ func (i *Image) canBePutOnAtlas() bool {
if i.imageType != ImageTypeRegular {
return false
}
return i.width+2*i.paddingSize() <= maxSize && i.height+2*i.paddingSize() <= maxSize
return i.width+i.paddingSize() <= maxSize && i.height+i.paddingSize() <= maxSize
}
func (i *Image) allocate(forbiddenBackends []*backend, asSource bool) {
@ -719,7 +710,7 @@ func (i *Image) allocate(forbiddenBackends []*backend, asSource bool) {
}
if !i.canBePutOnAtlas() {
if i.width+2*i.paddingSize() > maxSize || i.height+2*i.paddingSize() > maxSize {
if i.width+i.paddingSize() > maxSize || i.height+i.paddingSize() > maxSize {
panic(fmt.Sprintf("atlas: the image being put on an atlas is too big: width: %d, height: %d", i.width, i.height))
}
@ -728,7 +719,7 @@ func (i *Image) allocate(forbiddenBackends []*backend, asSource bool) {
typ = restorable.ImageTypeVolatile
}
i.backend = &backend{
restorable: restorable.NewImage(i.width+2*i.paddingSize(), i.height+2*i.paddingSize(), typ),
restorable: restorable.NewImage(i.width+i.paddingSize(), i.height+i.paddingSize(), typ),
source: asSource && typ == restorable.ImageTypeRegular,
}
return
@ -746,7 +737,7 @@ loop:
}
}
if n, ok := b.tryAlloc(i.width+2*i.paddingSize(), i.height+2*i.paddingSize()); ok {
if n, ok := b.tryAlloc(i.width+i.paddingSize(), i.height+i.paddingSize()); ok {
i.backend = b
i.node = n
return
@ -759,13 +750,13 @@ loop:
} else {
width, height = minDestinationSize, minDestinationSize
}
for i.width+2*i.paddingSize() > width {
for i.width+i.paddingSize() > width {
if width == maxSize {
panic(fmt.Sprintf("atlas: the image being put on an atlas is too big: width: %d, height: %d", i.width, i.height))
}
width *= 2
}
for i.height+2*i.paddingSize() > height {
for i.height+i.paddingSize() > height {
if height == maxSize {
panic(fmt.Sprintf("atlas: the image being put on an atlas is too big: width: %d, height: %d", i.width, i.height))
}
@ -783,7 +774,7 @@ loop:
}
theBackends = append(theBackends, b)
n := b.page.Alloc(i.width+2*i.paddingSize(), i.height+2*i.paddingSize())
n := b.page.Alloc(i.width+i.paddingSize(), i.height+i.paddingSize())
if n == nil {
panic("atlas: Alloc result must not be nil at allocate")
}
@ -795,7 +786,7 @@ func (i *Image) DumpScreenshot(graphicsDriver graphicsdriver.Graphics, path stri
backendsM.Lock()
defer backendsM.Unlock()
return i.backend.restorable.Dump(graphicsDriver, path, blackbg, image.Rect(i.paddingSize(), i.paddingSize(), i.width+i.paddingSize(), i.height+i.paddingSize()))
return i.backend.restorable.Dump(graphicsDriver, path, blackbg, image.Rect(0, 0, i.width, i.height))
}
func EndFrame(graphicsDriver graphicsdriver.Graphics) error {