core.git: vcl/source

[Noel Grandin (via logerrit)]

 vcl/source/bitmap/bitmappaint.cxx |    3 +++
 1 file changed, 3 insertions(+)

New commits:
commit d367142731f09c7be03ce1707e3aeab3c55b4f21
Author:     Noel Grandin <noelgran...@gmail.com>
AuthorDate: Sun Feb 18 16:12:52 2024 +0200
Commit:     Noel Grandin <noel.gran...@collabora.co.uk>
CommitDate: Sun Feb 18 17:02:49 2024 +0100

    restore comment I removed in
    
    bb3157e38bfffd23505abc35f790043392f43d2c
    
    Change-Id: Ib0b81a5e39657bdd73dd3a8659bb0c346b5532e4
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/163554
    Tested-by: Jenkins
    Reviewed-by: Noel Grandin <noel.gran...@collabora.co.uk>

diff --git a/vcl/source/bitmap/bitmappaint.cxx 
b/vcl/source/bitmap/bitmappaint.cxx
index bbf3239905f6..8cf32d3cde6f 100644
--- a/vcl/source/bitmap/bitmappaint.cxx
+++ b/vcl/source/bitmap/bitmappaint.cxx
@@ -86,6 +86,9 @@ bool Bitmap::Invert()
 
         if (pWriteAcc->GetPalette().IsGreyPalette8Bit())
         {
+            // For alpha masks, we need to actually invert the underlying data
+            // or the optimisations elsewhere do not always work right. If 
this is a bottleneck,
+            // probably better to try improving it inside the 
mxSalBmp->Invert() call above.
             for (tools::Long nY = 0; nY < nHeight; nY++)
             {
                 Scanline pScanline = pWriteAcc->GetScanline(nY);