diff options
| -rw-r--r-- | packages/fcl-image/src/fpwritepng.pp | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/packages/fcl-image/src/fpwritepng.pp b/packages/fcl-image/src/fpwritepng.pp index 2eac31ea26..ede21806a9 100644 --- a/packages/fcl-image/src/fpwritepng.pp +++ b/packages/fcl-image/src/fpwritepng.pp @@ -36,6 +36,7 @@ type FTransparentColor : TFPColor; FSwitchLine, FCurrentLine, FPreviousLine : pByteArray; FPalette : TFPPalette; + OwnsPalette : boolean; FHeader : THeaderChunk; FGetPixel : TGetPixelFunc; FDatalineLength : longword; @@ -115,6 +116,7 @@ end; destructor TFPWriterPNG.destroy; begin + if OwnsPalette then FreeAndNil(FPalette); with Fchunk do if acapacity > 0 then freemem (data); @@ -407,13 +409,15 @@ begin c := 0; if FIndexed then begin - if TheImage.UsePalette then - FPalette := TheImage.Palette - else + if OwnsPalette then FreeAndNil(FPalette); + OwnsPalette := not TheImage.UsePalette; + if OwnsPalette then begin FPalette := TFPPalette.Create (16); FPalette.Build (TheImage); - end; + end + else + FPalette := TheImage.Palette; if ThePalette.count > 256 then raise PNGImageException.Create ('Too many colors to use indexed PNG color type'); ColorType := 3; |