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internal/atlas: refactoring

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Hajime Hoshi 2024-06-30 22:38:25 +09:00
parent ec7ef5e6a3
commit 3f91d8cdf1
1 changed files with 4 additions and 4 deletions
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8
internal/atlas/image.go
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@ -89,7 +89,7 @@ func putImagesOnSourceBackend() {
if i.usedAsSourceCount < math.MaxInt {
i.usedAsSourceCount++
}
if int64(i.usedAsSourceCount) >= int64(baseCountToPutOnSourceBackend*(1<<uint(min(i.usedAsDestinationCount, 31)))) {
if i.usedAsSourceCount >= baseCountToPutOnSourceBackend*(1<<uint(min(i.usedAsDestinationCount, 31))) {
i.putOnSourceBackend()
i.usedAsSourceCount = 0
}
@ -147,8 +147,6 @@ func (b *backend) extendIfNeeded(width, height int) {
// Assume that the screen image is never extended.
newImg := newClearedImage(width, height, false)
// Use DrawTriangles instead of WritePixels because the image i might be stale and not have its pixels
// information.
srcs := [graphics.ShaderSrcImageCount]*graphicscommand.Image{b.image}
sw, sh := b.image.InternalSize()
vs := quadVertices(0, 0, float32(sw), float32(sh), 0, 0, float32(sw), float32(sh), 1, 1, 1, 1)
@ -254,11 +252,13 @@ type Image struct {
// In the current implementation, if an image is being modified by DrawTriangles, the image is separated from
// a graphicscommand.Image on an atlas by ensureIsolatedFromSource.
//
// The type is int64 instead of int to avoid overflow when comparing the limitation.
//
// usedAsSourceCount is increased if the image is used as a rendering source, or set to 0 if the image is
// modified.
//
// WritePixels doesn't affect this value since WritePixels can be done on images on an atlas.
usedAsSourceCount int
usedAsSourceCount int64
// usedAsDestinationCount represents how many times an image is used as a rendering destination at DrawTriangles.
// usedAsDestinationCount affects the calculation when to put the image onto a texture atlas again.