Usermode/axwin4 - Continuing

[tpg/acess2.git] / Usermode / Applications / axwin4_src / Server / compositor.cpp

diff --git a/Usermode/Applications/axwin4_src/Server/compositor.cpp b/Usermode/Applications/axwin4_src/Server/compositor.cpp
index 497bf74..61d42e3 100644 (file)
--- a/Usermode/Applications/axwin4_src/Server/compositor.cpp
+++ b/Usermode/Applications/axwin4_src/Server/compositor.cpp
@@ -11,7 +11,8 @@
 
 namespace AxWin {
 
-CCompositor::CCompositor()
+CCompositor::CCompositor(CVideo& video):
+       m_video(video)
 {
        // 
 }
@@ -33,13 +34,19 @@ void CCompositor::Redraw()
        // For all windows, check for intersection with damage rects
        for( auto rect : m_damageRects )
        {
+               // window list should be sorted by draw order (lowest first)
                for( auto window : m_windows )
                {
-                       if( rect.Contains( window->m_rect ) )
+                       if( rect.HasIntersection( window->m_surface.m_rect ) )
                        {
-                               window->Repaint( rect );
+                               // TODO: just reblit
+                               CRect   rel_rect = window->m_surface.m_rect.RelativeIntersection(rect);
+                               BlitFromSurface( window->m_surface, rel_rect );
+                               //window->Repaint( rel_rect );
                        }
                }
+               
+               // TODO: Blit from windows to a local surface, then blit from there to screen here
        }
 
        m_damageRects.clear();
@@ -47,9 +54,23 @@ void CCompositor::Redraw()
 
 void CCompositor::DamageArea(const CRect& area)
 {
+       m_damageRects.push_back( area );
        // 1. Locate intersection with any existing damaged areas
        // 2. Append after removing intersections
 }
 
+void CCompositor::BlitFromSurface(const CSurface& dest, const CRect& src_rect)
+{
+       for( unsigned int i = 0; i < src_rect.m_h; i ++ )
+       {
+               m_video.BlitLine(
+                       dest.GetScanline(src_rect.m_y, src_rect.m_y),
+                       dest.m_rect.m_y + src_rect.m_y + i,
+                       dest.m_rect.m_x + src_rect.m_x,
+                       src_rect.m_w
+                       );
+       }
+}
+
 }      // namespace AxWin