eeschema-gal: implemented EnableDepthTest() in GAL, fixed drawing order in eeschema

common/gal/opengl/gpu_manager.cpp

@@ -49,7 +49,7 @@ GPU_MANAGER* GPU_MANAGER::MakeManager( VERTEX_CONTAINER* aContainer )
 
 
 GPU_MANAGER::GPU_MANAGER( VERTEX_CONTAINER* aContainer ) :
-    m_isDrawing( false ), m_container( aContainer ), m_shader( NULL ), m_shaderAttrib( 0 )
+    m_isDrawing( false ), m_container( aContainer ), m_shader( NULL ), m_shaderAttrib( 0 ), m_enableDepthTest( true )
 {
 }
 
@@ -154,6 +154,11 @@ void GPU_CACHED_MANAGER::EndDrawing()
         return;
     }
 
+    if( m_enableDepthTest )
+        glEnable( GL_DEPTH_TEST );
+    else
+        glDisable( GL_DEPTH_TEST );
+
     // Prepare buffers
     glEnableClientState( GL_VERTEX_ARRAY );
     glEnableClientState( GL_COLOR_ARRAY );
@@ -254,6 +259,11 @@ void GPU_NONCACHED_MANAGER::EndDrawing()
     GLfloat* coordinates    = (GLfloat*) ( vertices );
     GLubyte* colors         = (GLubyte*) ( vertices ) + COLOR_OFFSET;
 
+    if( m_enableDepthTest )
+        glEnable( GL_DEPTH_TEST );
+    else
+        glDisable( GL_DEPTH_TEST );
+
     // Prepare buffers
     glEnableClientState( GL_VERTEX_ARRAY );
     glEnableClientState( GL_COLOR_ARRAY );
@@ -295,3 +305,8 @@ void GPU_NONCACHED_MANAGER::EndDrawing()
                 wxT( "GPU_NONCACHED_MANAGER::EndDrawing(): %.1f ms" ), totalRealTime.msecs() );
 #endif /* __WXDEBUG__ */
 }
+
+void GPU_MANAGER::EnableDepthTest( bool aEnabled )
+{
+    m_enableDepthTest = aEnabled;
+}

common/gal/opengl/opengl_gal.cpp

@@ -1159,6 +1159,8 @@ void OPENGL_GAL::DrawGrid()
     SetTarget( TARGET_NONCACHED );
     compositor->SetBuffer( mainBuffer );
 
+    nonCachedManager->EnableDepthTest( false );
+
     // sub-pixel lines all render the same
     double minorLineWidth = std::max( 1.0, gridLineWidth ) * getWorldPixelSize();
     double majorLineWidth = minorLineWidth * 2.0;
@@ -2072,10 +2074,7 @@ static void InitTesselatorCallbacks( GLUtesselator* aTesselator )
 
 void OPENGL_GAL::EnableDepthTest( bool aEnabled )
 {
-    if( aEnabled )
-        glEnable( GL_DEPTH_TEST );
-    else
-    {
-        glDisable( GL_DEPTH_TEST );
-    }
+    cachedManager->EnableDepthTest( aEnabled );
+    nonCachedManager->EnableDepthTest( aEnabled );
+    overlayManager->EnableDepthTest( aEnabled );
 }

common/gal/opengl/vertex_manager.cpp

@@ -284,3 +284,8 @@ void VERTEX_MANAGER::putVertex( VERTEX& aTarget, GLfloat aX, GLfloat aY, GLfloat
         aTarget.shader[j] = m_shader[j];
     }
 }
+
+void VERTEX_MANAGER::EnableDepthTest( bool aEnabled )
+{
+    m_gpu->EnableDepthTest( aEnabled );
+}

eeschema/sch_edit_frame.cpp

@@ -1427,6 +1427,9 @@ void SCH_EDIT_FRAME::addCurrentItemToScreen( bool aRedraw )
     }
 
     item->ClearFlags();
+
+    GetCanvas()->GetView()->Update( item );
+
     screen->SetModify();
     screen->SetCurItem( NULL );
     m_canvas->SetMouseCapture( NULL, NULL );

eeschema/sch_painter.cpp

@@ -144,8 +144,6 @@ bool SCH_PAINTER::Draw( const VIEW_ITEM *aItem, int aLayer )
 
     m_schSettings.ImportLegacyColors( nullptr );
 
-    m_gal->EnableDepthTest( false );
-
 	switch( item->Type() )
 	{
 	HANDLE_ITEM(LIB_ALIAS_T, LIB_ALIAS);
@@ -1079,6 +1077,8 @@ void SCH_PAINTER::draw( SCH_COMPONENT *aComp, int aLayer )
     std::vector<SCH_FIELD*> fields;
     aComp->GetFields( fields, false );
 
+    m_gal->AdvanceDepth();
+
     for( SCH_FIELD* field : fields )
     {
         if( field->GetId() == REFERENCE || !field->IsMoving() )

eeschema/sch_view.cpp

@@ -222,6 +222,9 @@ void SCH_VIEW::Redraw()
         ( *i )->items->Query( rect, visitor );
     }
 
+
+    m_gal->EnableDepthTest( false );
+
     VIEW::Redraw();
 }
 

include/gal/opengl/gpu_manager.h

@@ -79,6 +79,12 @@ public:
      */
     virtual void SetShader( SHADER& aShader );
 
+    /**
+     * Function EnableDepthTest()
+     * Enables/disables Z buffer depth test.
+     */
+    void EnableDepthTest( bool aEnabled );
+
 protected:
     GPU_MANAGER( VERTEX_CONTAINER* aContainer );
 
@@ -93,6 +99,9 @@ protected:
 
     ///> Location of shader attributes (for glVertexAttribPointer)
     int m_shaderAttrib;
+
+    ///> true: enable Z test when drawing
+    bool m_enableDepthTest;
 };
 
 

include/gal/opengl/vertex_manager.h

@@ -349,6 +349,12 @@ public:
      */
     void EndDrawing() const;
 
+    /**
+     * Function EnableDepthTest()
+     * Enables/disables Z buffer depth test.
+     */
+    void EnableDepthTest( bool aEnabled );
+
 protected:
     /**
      * Function putVertex()