From f1e01466f0791c499f74a34df58edf4c94eb4b15 Mon Sep 17 00:00:00 2001
From: Mike Kaganski <mike.kaganski@collabora.com>
Date: Wed, 19 Aug 2026 11:12:58 +0000
Subject: [PATCH] CreateAlphaMask + CreateColorBitmap -> SplitIntoColorAndAlpha

See commit f7b67e6c8c5981790fb9ac162dcc68e470b53112 (pdfexport: reduce
the number of times we split images, 2026-08-19) for rationale.

Change-Id: If2caeff175ed120dde336c40f5e96ccd8157d5ad
Signed-off-by: Mike Kaganski <mike.kaganski@collabora.com>
Reviewed-on: https://gerrit.collaboraoffice.com/c/online/+/9528
Reviewed-by: Noel Grandin <noel.grandin@collabora.com>
Tested-by: Jenkins CPCI <releng@collaboraoffice.com>
(cherry picked from commit 86514450b4655f8e5623362c54d0153f5887d753)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/209517
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>
Tested-by: Xisco Fauli <xiscofauli@libreoffice.org>
---
 vcl/source/gdi/gdimetafiletools.cxx | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/vcl/source/gdi/gdimetafiletools.cxx b/vcl/source/gdi/gdimetafiletools.cxx
index b3343911d2a5..c008658bc26c 100644
--- a/vcl/source/gdi/gdimetafiletools.cxx
+++ b/vcl/source/gdi/gdimetafiletools.cxx
@@ -174,10 +174,13 @@ namespace
         aVDev->SetFillColor( COL_WHITE);
         aVDev->SetLineColor();
 
+        Bitmap aColorBitmap(rBitmap);
         if(rBitmap.HasAlpha())
         {
             // use given alpha channel
-            aVDev->DrawBitmap(Point(0, 0), rBitmap.CreateAlphaMask().GetBitmap());
+            AlphaMask aAlpha;
+            std::tie(aColorBitmap, aAlpha) = rBitmap.SplitIntoColorAndAlpha();
+            aVDev->DrawBitmap(Point(0, 0), aAlpha.GetBitmap());
         }
         else
         {
@@ -229,7 +232,7 @@ namespace
                 Size(
                     basegfx::fround<tools::Long>(aLogicBitmapRange.getWidth()),
                     basegfx::fround<tools::Long>(aLogicBitmapRange.getHeight())),
-                Bitmap(rBitmap.CreateColorBitmap(), aAlpha)));
+                Bitmap(aColorBitmap, aAlpha)));
 
         return true;
     }