[Libreoffice-commits] core.git: Branch 'feature/fixes10' - 2 commits - vcl/inc vcl/opengl vcl/source vcl/win

Michael Meeks michael.meeks at collabora.com
Tue Sep 15 18:53:19 PDT 2015


 vcl/inc/opengl/win/gdiimpl.hxx      |    1 +
 vcl/opengl/gdiimpl.cxx              |    9 +++++++--
 vcl/opengl/win/gdiimpl.cxx          |   18 +++++++++++++++++-
 vcl/source/opengl/OpenGLContext.cxx |    3 +++
 vcl/source/window/event.cxx         |   10 +++++++++-
 vcl/source/window/status.cxx        |    6 ++++++
 vcl/win/source/window/salframe.cxx  |    2 +-
 7 files changed, 44 insertions(+), 5 deletions(-)

New commits:
commit 13651ec90278b0b80e8458e554927abc290ec55d
Author: Michael Meeks <michael.meeks at collabora.com>
Date:   Tue Sep 15 23:42:52 2015 +0100

    tdf#94213 - calc re-size flicker turns out to be the status bar.
    
    Using vdev's associated with old contexts, is un-necessary and a
    recipe for context switching & hence flicker.
    
    Change-Id: I37ed967a7816e5ca0240908ab4793ce1e68570ee

diff --git a/vcl/source/window/event.cxx b/vcl/source/window/event.cxx
index 852cc0c..35c3e38 100644
--- a/vcl/source/window/event.cxx
+++ b/vcl/source/window/event.cxx
@@ -21,6 +21,7 @@
 #include <vcl/window.hxx>
 #include <vcl/dockwin.hxx>
 #include <vcl/layout.hxx>
+#include <vcl/opengl/OpenGLWrapper.hxx>
 
 #include <window.h>
 #include <svdata.hxx>
@@ -453,7 +454,14 @@ void Window::ImplCallResize()
 {
     mpWindowImpl->mbCallResize = false;
 
-    if( GetBackground().IsGradient() )
+    // OpenGL has a charming feature of black clearing the whole window
+    // some legacy code eg. the app-menu has the beautiful feature of
+    // avoiding re-paints when width doesn't change => invalidate all.
+    if( OpenGLWrapper::isVCLOpenGLEnabled() )
+        Invalidate();
+
+    // Normally we avoid blanking on re-size unless people might notice:
+    else if( GetBackground().IsGradient() )
         Invalidate();
 
     Resize();
diff --git a/vcl/source/window/status.cxx b/vcl/source/window/status.cxx
index e8e2aaf..76c2de3 100644
--- a/vcl/source/window/status.cxx
+++ b/vcl/source/window/status.cxx
@@ -27,6 +27,7 @@
 #include <vcl/status.hxx>
 #include <vcl/virdev.hxx>
 #include <vcl/settings.hxx>
+#include <vcl/opengl/OpenGLWrapper.hxx>
 
 #include <svdata.hxx>
 #include <window.h>
@@ -731,6 +732,11 @@ void StatusBar::Paint(vcl::RenderContext& rRenderContext, const Rectangle&)
             // Do offscreen only when we are not recording layout..
             bool bOffscreen = !rRenderContext.ImplIsRecordLayout();
 
+            // tdf#94213 - un-necessary virtual-device in GL mode
+            // causes context switch & hence flicker during sizing.
+            if( OpenGLWrapper::isVCLOpenGLEnabled() )
+                bOffscreen = false;
+
             for (sal_uInt16 i = 0; i < nItemCount; i++)
             {
                 ImplDrawItem(rRenderContext, bOffscreen, i, true, true);
commit ae9723bc7ff4515ef5206f72a9eb2c18829cb42b
Author: Michael Meeks <michael.meeks at collabora.com>
Date:   Tue Sep 15 14:07:27 2015 +0100

    tdf#94213 - release offscreen texture properly on re-size.
    
    We need to ensure that we use an initialized context, and that
    (when we re-parent) we DeInit and so reset the previous OpenGLContext.
    Make UseContext more paranoid as well for good measure.
    
    Change-Id: Ia45334222045e5d2f48da47560fab8511223a9a5

diff --git a/vcl/inc/opengl/win/gdiimpl.hxx b/vcl/inc/opengl/win/gdiimpl.hxx
index 04bb151..5c91727 100644
--- a/vcl/inc/opengl/win/gdiimpl.hxx
+++ b/vcl/inc/opengl/win/gdiimpl.hxx
@@ -34,6 +34,7 @@ protected:
     virtual bool UseContext( const rtl::Reference<OpenGLContext> &pContext ) SAL_OVERRIDE;
 
 public:
+    virtual void Init() SAL_OVERRIDE;
     virtual void copyBits( const SalTwoRect& rPosAry, SalGraphics* pSrcGraphics ) SAL_OVERRIDE;
 
 
diff --git a/vcl/opengl/gdiimpl.cxx b/vcl/opengl/gdiimpl.cxx
index 10b5c35..4e29a7e 100644
--- a/vcl/opengl/gdiimpl.cxx
+++ b/vcl/opengl/gdiimpl.cxx
@@ -115,7 +115,8 @@ void OpenGLSalGraphicsImpl::Init()
     // check if we can simply re-use the same context
     if( mpContext.is() )
     {
-        if( !UseContext( mpContext ) )
+        if( !mpContext->isInitialized() ||
+            !UseContext( mpContext ) )
             ReleaseContext();
     }
 
@@ -124,8 +125,12 @@ void OpenGLSalGraphicsImpl::Init()
         maOffscreenTex.GetWidth()  != GetWidth() ||
         maOffscreenTex.GetHeight() != GetHeight() )
     {
-        if( mpContext.is() ) // valid context
+        if( maOffscreenTex && // don't work to release empty textures
+            mpContext.is() )  // valid context
+        {
+            mpContext->makeCurrent();
             mpContext->ReleaseFramebuffer( maOffscreenTex );
+        }
         maOffscreenTex = OpenGLTexture();
     }
 }
diff --git a/vcl/opengl/win/gdiimpl.cxx b/vcl/opengl/win/gdiimpl.cxx
index 30088a9..3ba2694 100644
--- a/vcl/opengl/win/gdiimpl.cxx
+++ b/vcl/opengl/win/gdiimpl.cxx
@@ -43,7 +43,23 @@ bool WinOpenGLSalGraphicsImpl::UseContext( const rtl::Reference<OpenGLContext> &
         return false;
     if( IsOffscreen() )
         return true;
-    return pContext->getOpenGLWindow().hWnd == mrParent.mhWnd;
+    return pContext->getOpenGLWindow().hWnd == mrParent.mhWnd &&
+           pContext->getOpenGLWindow().hDC == mrParent.mhLocalDC;
+}
+
+void WinOpenGLSalGraphicsImpl::Init()
+{
+    if ( !IsOffscreen() && mpContext.is() && mpContext->isInitialized() &&
+         ( mpContext->getOpenGLWindow().hWnd != mrParent.mhWnd ||
+           mpContext->getOpenGLWindow().hDC == mrParent.mhLocalDC ) )
+    {
+        // This can legitimiately happen, SalFrame keeps 2x
+        // SalGraphics which share the same hWnd and hDC.
+        // The shape 'Area' dialog does reparenting to trigger this.
+        SAL_WARN("vcl.opengl", "Unusual: Windows handle / DC changed without DeInit");
+    }
+
+    OpenGLSalGraphicsImpl::Init();
 }
 
 namespace
diff --git a/vcl/source/opengl/OpenGLContext.cxx b/vcl/source/opengl/OpenGLContext.cxx
index e14e013..240cbaa 100644
--- a/vcl/source/opengl/OpenGLContext.cxx
+++ b/vcl/source/opengl/OpenGLContext.cxx
@@ -1681,6 +1681,9 @@ void OpenGLContext::ReleaseFramebuffer( const OpenGLTexture& rTexture )
 {
     OpenGLZone aZone;
 
+    if (!rTexture) // no texture to release.
+        return;
+
     OpenGLFramebuffer* pFramebuffer = mpLastFramebuffer;
 
     while( pFramebuffer )
diff --git a/vcl/win/source/window/salframe.cxx b/vcl/win/source/window/salframe.cxx
index f8e0b69..86f72a9 100644
--- a/vcl/win/source/window/salframe.cxx
+++ b/vcl/win/source/window/salframe.cxx
@@ -1498,7 +1498,7 @@ static void ImplSetParentFrame( WinSalFrame* pThis, HWND hNewParentWnd, bool bAs
     {
         if ( pThis->mpGraphics->getDefPal() )
             SelectPalette( pThis->mpGraphics->getHDC(), pThis->mpGraphics->getDefPal(), TRUE );
-        pThis->mpGraphics->InitGraphics();
+        pThis->mpGraphics->DeInitGraphics();
         ReleaseDC( pThis->mhWnd, pThis->mpGraphics->getHDC() );
     }
 


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