Implement XToolkit2::createScreenCompatibleDeviceUsingBuffer for Android

Change-Id: I8dd16850a35cd2de7260dcbe9a8aa7afae2294be

5 files changed, 42 insertions, 11 deletions

diff --git a/vcl/headless/svpvd.cxx b/vcl/headless/svpvd.cxx
index fb752e6f0f57..a0d6aaf759e0 100644
--- a/vcl/headless/svpvd.cxx
+++ b/vcl/headless/svpvd.cxx
@@ -57,6 +57,11 @@ void SvpSalVirtualDevice::ReleaseGraphics( SalGraphics* pGraphics )
 
 sal_Bool SvpSalVirtualDevice::SetSize( long nNewDX, long nNewDY )
 {
+    return SetSizeUsingBuffer( nNewDX, nNewDY, basebmp::RawMemorySharedArray() );
+}
+
+sal_Bool SvpSalVirtualDevice::SetSizeUsingBuffer( long nNewDX, long nNewDY, const basebmp::RawMemorySharedArray &pBuffer )
+{
     B2IVector aDevSize( nNewDX, nNewDY );
     if( aDevSize.getX() == 0 )
         aDevSize.setX( 1 );
@@ -89,7 +94,10 @@ sal_Bool SvpSalVirtualDevice::SetSize( long nNewDX, long nNewDY )
 #endif
         }
         m_aDevice = aDevPal.empty()
-                    ? createBitmapDevice( aDevSize, false, nFormat )
+                    ? ( pBuffer
+                        ? createBitmapDevice( aDevSize, false, nFormat, pBuffer, PaletteMemorySharedVector() )
+                        : createBitmapDevice( aDevSize, false, nFormat )
+                       )
                     : createBitmapDevice( aDevSize, false, nFormat, PaletteMemorySharedVector( new std::vector< basebmp::Color >(aDevPal) ) );
 
         // update device in existing graphics
diff --git a/vcl/inc/headless/svpvd.hxx b/vcl/inc/headless/svpvd.hxx
index 211cf36846f9..d33c8dc5853a 100644
--- a/vcl/inc/headless/svpvd.hxx
+++ b/vcl/inc/headless/svpvd.hxx
@@ -53,7 +53,8 @@ public:
     virtual SalGraphics*    GetGraphics();
     virtual void            ReleaseGraphics( SalGraphics* pGraphics );
 
-    virtual sal_Bool            SetSize( long nNewDX, long nNewDY );
+    virtual sal_Bool        SetSize( long nNewDX, long nNewDY );
+    virtual sal_Bool        SetSizeUsingBuffer( long nNewDX, long nNewDY, const basebmp::RawMemorySharedArray &pBuffer );
     virtual void            GetSize( long& rWidth, long& rHeight );
 };
 
diff --git a/vcl/inc/salvd.hxx b/vcl/inc/salvd.hxx
index 77904ac6ccfd..5cca88d2d6ee 100644
--- a/vcl/inc/salvd.hxx
+++ b/vcl/inc/salvd.hxx
@@ -31,6 +31,7 @@
 
 #include <tools/solar.h>
 #include <vcl/dllapi.h>
+#include <basebmp/bitmapdevice.hxx>
 
 class SalGraphics;
 
@@ -49,8 +50,11 @@ public:                     // public for Sal Implementation
     virtual SalGraphics*            GetGraphics() = 0;
     virtual void                    ReleaseGraphics( SalGraphics* pGraphics ) = 0;
 
-                            // Set new size, without saving the old contents
-    virtual sal_Bool                    SetSize( long nNewDX, long nNewDY ) = 0;
+    // Set new size, without saving the old contents
+    virtual sal_Bool                SetSize( long nNewDX, long nNewDY ) = 0;
+
+    // Set new size using a buffer at the given address
+    virtual sal_Bool                SetSizeUsingBuffer( long nNewDX, long nNewDY, const basebmp::RawMemorySharedArray &pBuffer ) = 0;
 
     /// Get actual VDev size in pixel
     virtual void                    GetSize( long& rWidth, long& rHeight ) = 0;
diff --git a/vcl/inc/vcl/virdev.hxx b/vcl/inc/vcl/virdev.hxx
index d22f706b2d42..32a316721dcb 100644
--- a/vcl/inc/vcl/virdev.hxx
+++ b/vcl/inc/vcl/virdev.hxx
@@ -32,6 +32,7 @@
 #include <tools/solar.h>
 #include <vcl/dllapi.h>
 #include <vcl/outdev.hxx>
+#include <basebmp/bitmapdevice.hxx>
 
 // -----------------
 // - VirtualDevice -
@@ -56,7 +57,8 @@ private:
     sal_uInt8               meRefDevMode;
 
     SAL_DLLPRIVATE void ImplInitVirDev( const OutputDevice* pOutDev, long nDX, long nDY, sal_uInt16 nBitCount, const SystemGraphicsData *pData = NULL );
-    SAL_DLLPRIVATE sal_Bool ImplSetOutputSizePixel( const Size& rNewSize, sal_Bool bErase );
+    SAL_DLLPRIVATE sal_Bool InnerImplSetOutputSizePixel( const Size& rNewSize, sal_Bool bErase, const basebmp::RawMemorySharedArray &pBuffer );
+    SAL_DLLPRIVATE sal_Bool ImplSetOutputSizePixel( const Size& rNewSize, sal_Bool bErase, const basebmp::RawMemorySharedArray &pBuffer );
 
     // Copy assignment is forbidden and not implemented.
     VirtualDevice (const VirtualDevice &);
@@ -104,6 +106,7 @@ public:
     virtual             ~VirtualDevice();
 
     sal_Bool                SetOutputSizePixel( const Size& rNewSize, sal_Bool bErase = sal_True );
+    sal_Bool                SetOutputSizePixelAndBuffer( const Size& rNewSize, const basebmp::RawMemorySharedArray &pBuffer );
     sal_Bool                SetOutputSize( const Size& rNewSize, sal_Bool bErase = sal_True )
                             { return SetOutputSizePixel( LogicToPixel( rNewSize ), bErase ); }
 
diff --git a/vcl/source/gdi/virdev.cxx b/vcl/source/gdi/virdev.cxx
index cda84e464bcb..6c6281962e91 100644
--- a/vcl/source/gdi/virdev.cxx
+++ b/vcl/source/gdi/virdev.cxx
@@ -210,10 +210,10 @@ VirtualDevice::~VirtualDevice()
 
 // -----------------------------------------------------------------------
 
-sal_Bool VirtualDevice::ImplSetOutputSizePixel( const Size& rNewSize, sal_Bool bErase )
+sal_Bool VirtualDevice::InnerImplSetOutputSizePixel( const Size& rNewSize, sal_Bool bErase, const basebmp::RawMemorySharedArray &pBuffer )
 {
     SAL_INFO( "vcl.gdi",
-            "VirtualDevice::ImplSetOutputSizePixel( " << rNewSize.Width() << ", "
+            "VirtualDevice::InnerImplSetOutputSizePixel( " << rNewSize.Width() << ", "
             << rNewSize.Height() << ", " << bErase << " )" );
 
     if ( !mpVirDev )
@@ -222,6 +222,8 @@ sal_Bool VirtualDevice::ImplSetOutputSizePixel( const Size& rNewSize, sal_Bool b
     {
         if ( bErase )
             Erase();
+        // Yeah, so trying to re-use a VirtualDevice but this time using a
+        // pre-allocated buffer won't work. Big deal.
         return sal_True;
     }
 
@@ -236,7 +238,10 @@ sal_Bool VirtualDevice::ImplSetOutputSizePixel( const Size& rNewSize, sal_Bool b
 
     if ( bErase )
     {
-        bRet = mpVirDev->SetSize( nNewWidth, nNewHeight );
+        if ( pBuffer )
+            bRet = mpVirDev->SetSizeUsingBuffer( nNewWidth, nNewHeight, pBuffer );
+        else
+            bRet = mpVirDev->SetSize( nNewWidth, nNewHeight );
 
         if ( bRet )
         {
@@ -323,9 +328,9 @@ void VirtualDevice::ImplFillOpaqueRectangle( const Rectangle& rRect )
 
 // -----------------------------------------------------------------------
 
-sal_Bool VirtualDevice::SetOutputSizePixel( const Size& rNewSize, sal_Bool bErase )
+sal_Bool VirtualDevice::ImplSetOutputSizePixel( const Size& rNewSize, sal_Bool bErase, const basebmp::RawMemorySharedArray &pBuffer )
 {
-    if( ImplSetOutputSizePixel(rNewSize, bErase) )
+    if( InnerImplSetOutputSizePixel(rNewSize, bErase, pBuffer) )
     {
         if( mnAlphaDepth != -1 )
         {
@@ -339,7 +344,7 @@ sal_Bool VirtualDevice::SetOutputSizePixel( const Size& rNewSize, sal_Bool bEras
             if( !mpAlphaVDev )
             {
                 mpAlphaVDev = new VirtualDevice( *this, mnAlphaDepth );
-                mpAlphaVDev->ImplSetOutputSizePixel(rNewSize, bErase);
+                mpAlphaVDev->InnerImplSetOutputSizePixel(rNewSize, bErase, basebmp::RawMemorySharedArray() );
             }
 
             // TODO: copy full outdev state to new one, here. Also needed in outdev2.cxx:DrawOutDev
@@ -358,6 +363,16 @@ sal_Bool VirtualDevice::SetOutputSizePixel( const Size& rNewSize, sal_Bool bEras
     return sal_False;
 }
 
+sal_Bool VirtualDevice::SetOutputSizePixel( const Size& rNewSize, sal_Bool bErase )
+{
+    return ImplSetOutputSizePixel( rNewSize, bErase, basebmp::RawMemorySharedArray() );
+}
+
+sal_Bool VirtualDevice::SetOutputSizePixelAndBuffer( const Size& rNewSize, const basebmp::RawMemorySharedArray &pBuffer )
+{
+    return ImplSetOutputSizePixel( rNewSize, sal_True, pBuffer);
+}
+
 // -----------------------------------------------------------------------
 
 void VirtualDevice::SetReferenceDevice( RefDevMode i_eRefDevMode )