1 files changed, 78 insertions, 0 deletions
diff --git a/src/Renderer.h b/src/Renderer.h
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index 0000000..fb98e38
--- /dev/null
+++ b/src/Renderer.h
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+/*
+ * Renderer.h
+ *
+ * Copyright (C) 2009 Matthias Schiffer <matthias@gamezock.de>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef ZOOM_RENDERER_H_
+#define ZOOM_RENDERER_H_
+
+#include "BSPTree.h"
+#include "gl.h"
+
+namespace Zoom {
+
+class Renderer {
+  public:
+    Renderer() : activeTexture(0), renderVisitor(this) {}
+
+    void render(const BSPTree &tree);
+
+    template <typename T>
+    void render(const T &triangles) {
+      typename T::const_iterator t = triangles.begin();
+      if(t == triangles.end())
+        return;
+
+      useTexture(t->triangle.getTexture());
+
+      glBegin(GL_TRIANGLES);
+      for(; t != triangles.end(); ++t) {
+        renderTriangle(t->triangle);
+      }
+      glEnd();
+    }
+
+    struct TextureSorter {
+      bool operator() (const BSPTree::TriangleRecord &t1, const BSPTree::TriangleRecord &t2) {
+        return (t1.triangle.getTexture() < t2.triangle.getTexture());
+      }
+    };
+
+  private:
+    void renderTriangle(const Triangle &t);
+    void useTexture(unsigned texture);
+
+    class RenderVisitor {
+      public:
+        RenderVisitor(Renderer *renderer0) : renderer(renderer0) {}
+
+        void operator() (const BSPTree::TriangleRecord &t) const {
+          renderer->renderTriangle(t.triangle);
+        }
+
+      private:
+        Renderer *renderer;
+    };
+
+    unsigned activeTexture;
+
+    const RenderVisitor renderVisitor;
+};
+
+}
+
+#endif /* ZOOM_RENDERER_H_ */