Rearrange soucre files into subdirectories

[libs/gl.git] / source / effects / effect.h

diff --git a/source/effects/effect.h b/source/effects/effect.h
new file mode 100644 (file)
index 0000000..bc9e19e
--- /dev/null
+++ b/source/effects/effect.h
@@ -0,0 +1,48 @@
+#ifndef MSP_GL_EFFECT_H_
+#define MSP_GL_EFFECT_H_
+
+#include <set>
+#include <msp/core/refptr.h>
+#include "renderable.h"
+
+namespace Msp {
+namespace GL {
+
+class Sampler;
+
+/**
+Effects are used to wrap other renderables and give them additional visual
+properties.  An Effect's render method should set up the necessary state, call
+the wrapped Renderable's render method, and clean up after itself.
+*/
+class Effect: public Renderable
+{
+protected:
+       Renderable &renderable;
+       std::set<Tag> enabled_passes;
+
+private:
+       static WeakPtr<Sampler> linear_sampler;
+
+protected:
+       Effect(Renderable &);
+public:
+       virtual ~Effect() { }
+
+       void enable_for_pass(const Tag &);
+       void disable_for_pass(const Tag &);
+
+       virtual const Matrix *get_matrix() const { return renderable.get_matrix(); }
+       virtual const Geometry::BoundingSphere<float, 3> *get_bounding_sphere() const { return renderable.get_bounding_sphere(); }
+
+       virtual void setup_frame(Renderer &r) { renderable.setup_frame(r); }
+       virtual void finish_frame() { renderable.finish_frame(); }
+
+protected:
+       static RefPtr<Sampler> get_linear_sampler();
+};
+
+} // namespace GL
+} // namespace Msp
+
+#endif