Merge pull request #288 from openscad/issue11_2

Issue11 2

1 files changed, 48 insertions, 0 deletions

diff --git a/src/OffscreenView.cc b/src/OffscreenView.cc
new file mode 100644
index 0000000..430d4ea
--- /dev/null
+++ b/src/OffscreenView.cc
@@ -0,0 +1,48 @@
+#include <GL/glew.h>
+#include "OffscreenView.h"
+#include "system-gl.h"
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+#include <cstdlib>
+#include <sstream>
+
+OffscreenView::OffscreenView(size_t width, size_t height)
+{
+  this->ctx = create_offscreen_context(width, height);
+  if ( this->ctx == NULL ) throw -1;
+  GLView::initializeGL();
+  GLView::resizeGL(width, height);
+}
+
+OffscreenView::~OffscreenView()
+{
+  teardown_offscreen_context(this->ctx);
+}
+
+#ifdef ENABLE_OPENCSG
+void OffscreenView::display_opencsg_warning()
+{
+  fprintf(stderr, "OpenSCAD recommended OpenGL version is 2.0. \n");
+}
+#endif
+
+bool OffscreenView::save(const char *filename)
+{
+  return save_framebuffer(this->ctx, filename);
+}
+
+bool OffscreenView::save(std::ostream &output)
+{
+  return save_framebuffer(this->ctx, output);
+}
+
+std::string OffscreenView::getRendererInfo() const
+{
+  std::stringstream out;
+
+  out << glew_dump()
+      << offscreen_context_getinfo(this->ctx);
+
+  return out.str();
+}