From 1cc30679765ce996a009865e6bad3e5b74b96b41 Mon Sep 17 00:00:00 2001
From: Tomaž Vajngerl <tomaz.vajngerl@collabora.com>
Date: Thu, 10 Dec 2015 13:44:05 +0100
Subject: tdf#94851 can't use OpenGLSalBitmap with WinSalGraphics

Printing is done with the WinSalGraphics and not with
WinOpenGLSalGraphics on Windows even when OpenGL is enabled, but
the SalBitmap is still using the OpenGLSalBitmap which can't be
used with WinSalGraphics. So detect when the implementation of
SalGraphic is "wrong" and convert.

Change-Id: I99cd6b6403e9bd42d6f5b7d7cb07f48588c17ab8
---
 vcl/win/gdi/salgdi2.cxx | 32 +++++++++++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

(limited to 'vcl/win')

diff --git a/vcl/win/gdi/salgdi2.cxx b/vcl/win/gdi/salgdi2.cxx
index 64516c248569..aa08d9145568 100644
--- a/vcl/win/gdi/salgdi2.cxx
+++ b/vcl/win/gdi/salgdi2.cxx
@@ -34,6 +34,8 @@
 #include "vcl/bmpacc.hxx"
 #include "outdata.hxx"
 #include "salgdiimpl.hxx"
+#include "opengl/win/gdiimpl.hxx"
+
 
 bool WinSalGraphics::supportsOperation( OutDevSupportType eType ) const
 {
@@ -71,7 +73,35 @@ void WinSalGraphics::copyArea( long nDestX, long nDestY,
 
 void WinSalGraphics::drawBitmap(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap)
 {
-    mpImpl->drawBitmap( rPosAry, rSalBitmap );
+    if (dynamic_cast<WinOpenGLSalGraphicsImpl*>(mpImpl.get()) == nullptr &&
+        dynamic_cast<const WinSalBitmap*>(&rSalBitmap) == nullptr)
+    {
+        SalBitmap& rConstBitmap = const_cast<SalBitmap&>(rSalBitmap);
+        BitmapBuffer* pRead = rConstBitmap.AcquireBuffer(BITMAP_READ_ACCESS);
+
+        std::unique_ptr<WinSalBitmap> pWinSalBitmap(new WinSalBitmap());
+        pWinSalBitmap->Create(rConstBitmap.GetSize(), rConstBitmap.GetBitCount(), BitmapPalette());
+        BitmapBuffer* pWrite = pWinSalBitmap->AcquireBuffer(BITMAP_WRITE_ACCESS);
+
+        sal_uInt8* pSource(pRead->mpBits);
+        sal_uInt8* pDestination(pWrite->mpBits);
+
+        for (long y = 0; y < pRead->mnHeight; y++)
+        {
+            memcpy(pDestination, pSource, pRead->mnScanlineSize);
+            pSource += pRead->mnScanlineSize;
+            pDestination += pWrite->mnScanlineSize;
+        }
+        pWinSalBitmap->ReleaseBuffer(pWrite, BITMAP_WRITE_ACCESS);
+
+        rConstBitmap.ReleaseBuffer(pRead, BITMAP_READ_ACCESS);
+
+        mpImpl->drawBitmap(rPosAry, *pWinSalBitmap.get());
+    }
+    else
+    {
+        mpImpl->drawBitmap(rPosAry, rSalBitmap);
+    }
 }
 
 void WinSalGraphics::drawBitmap( const SalTwoRect& rPosAry,
-- 
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