Fixed overlapping segment endings in OpenGL view.

common/gal/graphics_abstraction_layer.cpp

@@ -248,3 +248,7 @@ VECTOR2D GAL::GetGridPoint( const VECTOR2D& aPoint ) const
     return VECTOR2D( round( ( aPoint.x - gridOffset.x ) / gridSize.x ) * gridSize.x + gridOffset.x,
                      round( ( aPoint.y - gridOffset.y ) / gridSize.y ) * gridSize.y + gridOffset.y );
 }
+
+const int GAL::MIN_DEPTH = -256;
+const int GAL::MAX_DEPTH = 255;
+const int GAL::GRID_DEPTH = MAX_DEPTH - 1;

common/gal/opengl/opengl_gal.cpp

@@ -42,7 +42,7 @@ using namespace KIGFX;
 // Prototypes
 void InitTesselatorCallbacks( GLUtesselator* aTesselator );
 
-const int glAttributes[] = { WX_GL_RGBA, WX_GL_DOUBLEBUFFER, WX_GL_DEPTH_SIZE, 16, 0 };
+const int glAttributes[] = { WX_GL_RGBA, WX_GL_DOUBLEBUFFER, WX_GL_DEPTH_SIZE, 8, 0 };
 
 wxGLContext* OPENGL_GAL::glContext = NULL;
 

common/gal/opengl/shader.frag

@@ -27,16 +27,16 @@
 #version 120
 
 // Shader types
-const float SHADER_LINE                 = 1.0f;
-const float SHADER_FILLED_CIRCLE        = 2.0f;
-const float SHADER_STROKED_CIRCLE       = 3.0f;
+const float SHADER_LINE                 = 1.0;
+const float SHADER_FILLED_CIRCLE        = 2.0;
+const float SHADER_STROKED_CIRCLE       = 3.0;
 
 varying vec4 shaderParams;
 varying vec2 circleCoords;
 
 void filledCircle( vec2 aCoord )
 {
-    if( dot( aCoord, aCoord ) < 1.0f )
+    if( dot( aCoord, aCoord ) < 1.0 )
         gl_FragColor = gl_Color;
     else
         discard;
@@ -49,7 +49,7 @@ void strokedCircle( vec2 aCoord, float aRadius, float aWidth )
     float innerRadius = aRadius - ( aWidth / 2 );
     float relWidth = innerRadius / outerRadius;
 
-    if( ( dot( aCoord, aCoord ) < 1.0f ) &&
+    if( ( dot( aCoord, aCoord ) < 1.0 ) &&
         ( dot( aCoord, aCoord ) > relWidth * relWidth ) )
         gl_FragColor = gl_Color;
     else

common/gal/opengl/shader.vert

@@ -27,12 +27,12 @@
 #version 120
 
 // Shader types
-const float SHADER_LINE                 = 1.0f;
-const float SHADER_FILLED_CIRCLE        = 2.0f;
-const float SHADER_STROKED_CIRCLE       = 3.0f;
+const float SHADER_LINE                 = 1.0;
+const float SHADER_FILLED_CIRCLE        = 2.0;
+const float SHADER_STROKED_CIRCLE       = 3.0;
 
 // Minimum line width
-const float MIN_WIDTH = 1.0f;
+const float MIN_WIDTH = 1.0;
 
 attribute vec4 attrShaderParams;
 varying vec4 shaderParams;
@@ -47,42 +47,39 @@ void main()
     {
         float lineWidth = shaderParams[3];
         float worldScale = gl_ModelViewMatrix[0][0];
-        float scale;
 
         // Make lines appear to be at least 1 pixel wide
         if( worldScale * lineWidth < MIN_WIDTH )
-            scale = MIN_WIDTH / ( worldScale * lineWidth );
+            gl_Position = gl_ModelViewProjectionMatrix *
+                ( gl_Vertex + vec4( shaderParams.yz * MIN_WIDTH / ( worldScale * lineWidth ), 0.0, 0.0 ) );
         else
-            scale = 1.0f;
-
-        gl_Position = gl_ModelViewProjectionMatrix *
-            ( gl_Vertex + vec4( shaderParams.yz * scale, 0.0, 0.0 ) );
+            gl_Position = gl_ModelViewProjectionMatrix *
+                ( gl_Vertex + vec4( shaderParams.yz, 0.0, 0.0 ) );
     }
     else if( ( shaderParams[0] == SHADER_STROKED_CIRCLE ) ||
              ( shaderParams[0] == SHADER_FILLED_CIRCLE  ) )
     {
         // Compute relative circle coordinates basing on indices
         // Circle
-        if( shaderParams[1] == 1.0f )
-            circleCoords = vec2( -sqrt( 3.0f ), -1.0f );
-        else if( shaderParams[1] == 2.0f )
-            circleCoords = vec2( sqrt( 3.0f ), -1.0f );
-        else if( shaderParams[1] == 3.0f )
-            circleCoords = vec2( 0.0f, 2.0f );
+        if( shaderParams[1] == 1.0 )
+            circleCoords = vec2( -sqrt( 3.0 ), -1.0 );
+        else if( shaderParams[1] == 2.0 )
+            circleCoords = vec2( sqrt( 3.0 ), -1.0 );
+        else if( shaderParams[1] == 3.0 )
+            circleCoords = vec2( 0.0, 2.0 );
 
         // Semicircle
-        else if( shaderParams[1] == 4.0f )
-            circleCoords = vec2( -3.0f / sqrt( 3.0f ), 0.0f );
-        else if( shaderParams[1] == 5.0f )
-            circleCoords = vec2( 3.0f / sqrt( 3.0f ), 0.0f );
-        else if( shaderParams[1] == 6.0f )
-            circleCoords = vec2( 0.0f, 2.0f );
+        else if( shaderParams[1] == 4.0 )
+            circleCoords = vec2( -3.0 / sqrt( 3.0 ), 0.0 );
+        else if( shaderParams[1] == 5.0 )
+            circleCoords = vec2( 3.0 / sqrt( 3.0 ), 0.0 );
+        else if( shaderParams[1] == 6.0 )
+            circleCoords = vec2( 0.0, 2.0 );
 
         // Make the line appear to be at least 1 pixel wide
         float lineWidth = shaderParams[3];
         float worldScale = gl_ModelViewMatrix[0][0];
 
-        // Make lines appear to be at least 1 pixel width
         if( worldScale * lineWidth < MIN_WIDTH )
             shaderParams[3] = shaderParams[3] / ( worldScale * lineWidth );
 

common/view/view.cpp

@@ -1041,7 +1041,7 @@ struct VIEW::extentsVisitor
 };
 
 
-const BOX2I VIEW::CalculateExtents() 
+const BOX2I VIEW::CalculateExtents()
 {
     extentsVisitor v;
     BOX2I fullScene;
@@ -1051,6 +1051,9 @@ const BOX2I VIEW::CalculateExtents()
     {
         l->items->Query( fullScene, v );
     }
-    
+
     return v.extents;
 }
+
+
+const int VIEW::TOP_LAYER_MODIFIER = -VIEW_MAX_LAYERS;

include/gal/graphics_abstraction_layer.h

@@ -836,9 +836,6 @@ public:
         depthStack.pop();
     }
 
-    /// Depth level on which the grid is drawn
-    static const int GRID_DEPTH = 1024;
-
     static const double METRIC_UNIT_LENGTH;
 
 protected:
@@ -903,8 +900,13 @@ protected:
      */
     virtual void drawGridLine( const VECTOR2D& aStartPoint, const VECTOR2D& aEndPoint ) = 0;
 
-    static const int MIN_DEPTH = -2048;
-    static const int MAX_DEPTH = 2047;
+    /// Possible depth range
+    static const int MIN_DEPTH;
+    static const int MAX_DEPTH;
+
+    /// Depth level on which the grid is drawn
+    static const int GRID_DEPTH;
+
 };
 }    // namespace KIGFX
 

include/view/view.h

@@ -670,7 +670,7 @@ private:
     bool m_dirtyTargets[TARGETS_NUMBER];
 
     /// Rendering order modifier for layers that are marked as top layers
-    static const int TOP_LAYER_MODIFIER = -VIEW_MAX_LAYERS;
+    static const int TOP_LAYER_MODIFIER;
 
     /// Items to be updated
     std::vector<VIEW_ITEM*> m_needsUpdate;

pcbnew/tools/edit_points.cpp

@@ -211,7 +211,7 @@ void EDIT_POINTS::ViewDraw( int aLayer, KIGFX::GAL* aGal ) const
     aGal->SetIsFill( true );
     aGal->SetIsStroke( false );
     aGal->PushDepth();
-    aGal->SetLayerDepth( -512.0 );      // TODO no hardcoded depths?
+    aGal->SetLayerDepth( aGal->GetMinDepth() );
 
     float size = m_view->ToWorld( EDIT_POINT::POINT_SIZE );