1 files changed, 86 insertions, 0 deletions
diff --git a/source/blender/freestyle/intern/rendering/GLXOffscreenViewer.cpp b/source/blender/freestyle/intern/rendering/GLXOffscreenViewer.cpp
new file mode 100755
index 00000000000..7135cedd7ad
--- /dev/null
+++ b/source/blender/freestyle/intern/rendering/GLXOffscreenViewer.cpp
@@ -0,0 +1,86 @@
+
+//
+//  Copyright (C) : Please refer to the COPYRIGHT file distributed 
+//   with this source distribution. 
+//
+//  This program is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU General Public License
+//  as published by the Free Software Foundation; either version 2
+//  of the License, or (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef WIN32
+# include "GLRenderer.h"
+# include "GLXOffscreenViewer.h"
+
+
+GLXOffscreenViewer::GLXOffscreenViewer(int w, int h){
+    _offscreenArea = new OffScreenArea(OffScreenArea::PIXMAP_OFFSCREEN_TYPE);
+    _offscreenArea->AllocateOffScreenArea(w,h);
+    _RootNode.SetLightingEnabled(false);
+    _RootNode.SetLineWidth(1.0);
+    _pGLRenderer = new GLRenderer;
+} 
+
+GLXOffscreenViewer::~GLXOffscreenViewer(){
+    if(_offscreenArea)
+      delete _offscreenArea;
+    if(_pGLRenderer)
+      delete _pGLRenderer;
+    _RootNode.destroy();  
+}
+
+void GLXOffscreenViewer::AddNode(Node* iNode){
+  _RootNode.AddChild(iNode);
+}
+
+void GLXOffscreenViewer::DetachNode(Node* iNode){
+  _RootNode.DetachChild(iNode);
+}
+
+void GLXOffscreenViewer::init(){
+  glClearColor(_clearColor[0],_clearColor[1],_clearColor[2],1);
+}
+
+void GLXOffscreenViewer::readPixels(int x,
+                                int y,
+                                int width,
+                                int height,
+                                float *pixels){
+  _offscreenArea->MakeCurrent();
+  glReadBuffer(GL_FRONT);
+  GLenum glformat = GL_RED;
+  glReadPixels(x,y,width, height, glformat, GL_FLOAT, (GLfloat*)pixels);
+} 
+
+
+
+void GLXOffscreenViewer::draw()
+{
+  _offscreenArea->MakeCurrent();
+  glPushAttrib(GL_ALL_ATTRIB_BITS);
+  glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+  //Modelview Matrix
+  //================
+  glMatrixMode(GL_MODELVIEW);
+  glLoadIdentity();
+    
+  glEnable(GL_BLEND);
+  glBlendFunc(GL_ONE, GL_ONE);
+  glDisable(GL_DEPTH_TEST);
+  _RootNode.accept(*_pGLRenderer);
+  glFlush();
+  glPopAttrib();
+}
+
+#endif