mth/ebiten
1
0
Fork 0
mirror of https://github.com/hajimehoshi/ebiten.git synced 2024-12-24 18:58:54 +01:00
Code Issues Packages Projects Releases Wiki Activity

text/v2: add copyCheck to GoTextFaceSource

Browse Source
This commit is contained in:
Hajime Hoshi 2023-11-19 23:15:18 +09:00
parent d2d86fbddd
commit 7a08737326
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
text/v2/gotextfacesource.go
View File

@ -58,6 +58,8 @@ type GoTextFaceSource struct {
outputCache map[goTextOutputCacheKey]*goTextOutputCacheValue
addr *GoTextFaceSource
m sync.Mutex
}
@ -95,6 +97,7 @@ func NewGoTextFaceSource(source io.ReadSeeker) (*GoTextFaceSource, error) {
f: f,
id: nextUniqueID(),
}
s.addr = s
runtime.SetFinalizer(s, finalizeGoTextFaceSource)
return s, nil
}
@ -117,6 +120,7 @@ func NewGoTextFaceSourcesFromCollection(source io.ReadSeeker) ([]*GoTextFaceSour
f: f,
id: nextUniqueID(),
}
s.addr = s
runtime.SetFinalizer(s, finalizeGoTextFaceSource)
sources[i] = s
}
@ -130,7 +134,15 @@ func finalizeGoTextFaceSource(source *GoTextFaceSource) {
})
}
func (g *GoTextFaceSource) copyCheck() {
if g.addr != g {
panic("text: illegal use of non-zero GoTextFaceSource copied by value")
}
}
func (g *GoTextFaceSource) shape(text string, face *GoTextFace) (shaping.Output, []glyph) {
g.copyCheck()
g.m.Lock()
defer g.m.Unlock()