Attachment 188141 Details for Bug 155912 – Debug patch for master that prints the initial color of a VirtualDevice's alpha mask after being resized

Debug patch for master that prints the initial color of a VirtualDevice's alpha mask after being resized

alphamaskprintstartingcolor.txt (text/plain), 1.41 KB, created by Patrick Luby (volunteer) on 2023-06-30 18:06:12 UTC

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Creator: Patrick Luby (volunteer)

Created: 2023-06-30 18:06:12 UTC

Size: 1.41 KB

patch

obsolete

>diff --git a/vcl/source/gdi/virdev.cxx b/vcl/source/gdi/virdev.cxx
>index 4d10f317e93c..2c0b12bc4da0 100644
>--- a/vcl/source/gdi/virdev.cxx
>+++ b/vcl/source/gdi/virdev.cxx
>@@ -25,6 +25,7 @@
> 
> #include <vcl/pdfextoutdevdata.hxx>
> #include <vcl/virdev.hxx>
>+#include <vcl/BitmapReadAccess.hxx>
> 
> #include <ImplOutDevData.hxx>
> #include <font/PhysicalFontCollection.hxx>
>@@ -380,6 +381,26 @@ bool VirtualDevice::ImplSetOutputSizePixel( const Size& rNewSize, bool bErase,
>             mpAlphaVDev->SetMapMode( GetMapMode() );
> 
>             mpAlphaVDev->SetAntialiasing( GetAntialiasing() );
>+
>+    Bitmap aBitmap( mpAlphaVDev->GetBitmap( Point(), rNewSize ) );
>+    Bitmap::ScopedReadAccess pRead(aBitmap);
>+
>+    if (pRead)
>+    {
>+        for (sal_Int32 nY = 0; nY < sal_Int32(rNewSize.Height()); ++nY)
>+        {
>+            Scanline pScanlineRead = pRead->GetScanline(nY);
>+            for (sal_Int32 nX = 0; nX < sal_Int32(rNewSize.Width()); ++nX)
>+            {
>+                BitmapColor aBmpColor
>+                    = pRead->HasPalette()
>+                          ? pRead->GetPaletteColor(pRead->GetIndexFromData(pScanlineRead, nX))
>+                          : pRead->GetPixelFromData(pScanlineRead, nX);
>+                fprintf( stderr, "Here: %i %i %i %i %i\n", nX, nY, aBmpColor.GetRed(), aBmpColor.GetGreen(), aBmpColor.GetBlue() );
>+            }
>+        }
>+    }
>+    pRead.reset();
>         }
> 
>         return true;

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Attachments on bug 155912: 187972 | 187973 | 188073 | 188074 | 188084 | 188091 | 188092 | 188093 | 188131 | 188132 | 188141 | 188163 | 188222 | 188233 | 188268 | 188395 | 188419 | 188515 | 188536 | 188541