svp: replace basebmp surfaces with native cairo surfaces

so we can then

a) drop all of our own clipping code in favour of cairos clipping code
b) just pass cairo surfaces around the place instead of constantly
creating and tearing down surfaces based on basebmp data
c) we can additionally drop various flushing of the surfaces as it
doesn't matter anymore
d) use a lot less of our own code and far more of some one elses
hopefully more drawing optimized code
e) seeing as the graphics context are always cairo now, then they
are always cairo compatible, so those checks can go also

still need to figure out drawMask

Change-Id: I320cd14cdc714ea59d00e90233f1171f821cf953

1 files changed, 16 insertions, 41 deletions

diff --git a/vcl/headless/svpframe.cxx b/vcl/headless/svpframe.cxx
index 609db130fcaf..952f0ab7d143 100644
--- a/vcl/headless/svpframe.cxx
+++ b/vcl/headless/svpframe.cxx
@@ -28,6 +28,8 @@
 #include <basebmp/scanlineformats.hxx>
 #include <basegfx/vector/b2ivector.hxx>
 
+#include <cairo.h>
+
 using namespace basebmp;
 using namespace basegfx;
 
@@ -37,48 +39,15 @@ SvpSalFrame* SvpSalFrame::s_pFocusFrame = nullptr;
 #define SvpSalGraphics AquaSalGraphics
 #endif
 
-#ifndef IOS
-namespace {
-    /// Decouple SalFrame lifetime from damagetracker lifetime
-    struct DamageTracker : public basebmp::IBitmapDeviceDamageTracker
-    {
-        virtual ~DamageTracker() {}
-        virtual void damaged( const basegfx::B2IBox& ) const override {}
-    };
-}
-#endif
-
-#ifdef ANDROID
-void SvpSalFrame::enableDamageTracker( bool bOn )
-{
-    if( m_bDamageTracking == bOn )
-        return;
-    if( m_aFrame.get() )
-    {
-        if( m_bDamageTracking )
-            m_aFrame->setDamageTracker( basebmp::IBitmapDeviceDamageTrackerSharedPtr() );
-        else
-            m_aFrame->setDamageTracker(
-                basebmp::IBitmapDeviceDamageTrackerSharedPtr( new DamageTracker ) );
-    }
-    m_bDamageTracking = bOn;
-}
-#endif
-
-
 SvpSalFrame::SvpSalFrame( SvpSalInstance* pInstance,
                           SalFrame* pParent,
                           SalFrameStyleFlags nSalFrameStyle,
-                          basebmp::Format nScanlineFormat,
                           SystemParentData* ) :
     m_pInstance( pInstance ),
     m_pParent( static_cast<SvpSalFrame*>(pParent) ),
     m_nStyle( nSalFrameStyle ),
     m_bVisible( false ),
-#ifndef IOS
-    m_bDamageTracking( false ),
-    m_nScanlineFormat( nScanlineFormat ),
-#endif
+    m_pSurface( nullptr ),
     m_nMinWidth( 0 ),
     m_nMinHeight( 0 ),
     m_nMaxWidth( 0 ),
@@ -145,6 +114,8 @@ SvpSalFrame::~SvpSalFrame()
             }
         }
     }
+    if (m_pSurface)
+        cairo_surface_destroy(m_pSurface);
 }
 
 void SvpSalFrame::GetFocus()
@@ -176,7 +147,7 @@ SalGraphics* SvpSalFrame::AcquireGraphics()
 {
     SvpSalGraphics* pGraphics = new SvpSalGraphics();
 #ifndef IOS
-    pGraphics->setDevice( m_aFrame );
+    pGraphics->setSurface( m_pSurface );
 #endif
     m_aGraphics.push_back( pGraphics );
     return pGraphics;
@@ -284,21 +255,25 @@ void SvpSalFrame::SetPosSize( long nX, long nY, long nWidth, long nHeight, sal_u
     }
 #ifndef IOS
     B2IVector aFrameSize( maGeometry.nWidth, maGeometry.nHeight );
-    if( ! m_aFrame.get() || m_aFrame->getSize() != aFrameSize )
+    if (!m_pSurface || cairo_image_surface_get_width(m_pSurface) != aFrameSize.getX() ||
+                       cairo_image_surface_get_height(m_pSurface) != aFrameSize.getY() )
     {
         if( aFrameSize.getX() == 0 )
             aFrameSize.setX( 1 );
         if( aFrameSize.getY() == 0 )
             aFrameSize.setY( 1 );
-        m_aFrame = createBitmapDevice( aFrameSize, true, m_nScanlineFormat );
-        if (m_bDamageTracking)
-            m_aFrame->setDamageTracker(
-                basebmp::IBitmapDeviceDamageTrackerSharedPtr( new DamageTracker ) );
+
+        if (m_pSurface)
+            cairo_surface_destroy(m_pSurface);
+        m_pSurface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
+                            aFrameSize.getX(),
+                            aFrameSize.getY());
+
         // update device in existing graphics
         for( std::list< SvpSalGraphics* >::iterator it = m_aGraphics.begin();
              it != m_aGraphics.end(); ++it )
         {
-             (*it)->setDevice( m_aFrame );
+             (*it)->setSurface(m_pSurface);
         }
     }
     if( m_bVisible )