X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fpipeline.h;h=f8fdb5450b18d42eb621ff0fb80141918b9ecbc8;hb=904de4f7fd994886adbd3a6c03bc1b7c14ebc562;hp=85179b7d5abfb4c4263c39176b53d6fd26a0a7a5;hpb=7cbe8cc9893fe14f889321bd55e78b0ed6503e23;p=libs%2Fgl.git

diff --git a/source/pipeline.h b/source/pipeline.h
index 85179b7d..f8fdb545 100644
--- a/source/pipeline.h
+++ b/source/pipeline.h
@@ -3,20 +3,66 @@
 
 #include <map>
 #include <set>
-#include "pipelinepass.h"
+#include "framebuffer.h"
 #include "renderable.h"
+#include "renderbuffer.h"
+#include "texture2d.h"
 
 namespace Msp {
 namespace GL {
 
+class Blend;
 class Camera;
-class Framebuffer;
+class DepthTest;
+class Lighting;
 class PostProcessor;
-class Renderbuffer;
-class Texture2D;
 
+/**
+Encapsulates all of the information used to produce a complete image in the
+framebuffer.  This is the highest level rendering class, combining Renderables
+with a camera, lights and some other influential objects.
+
+A Pipeline is also a Renderable itself.  Externally, it only exposes the
+default pass.  Internally, it can hold any number of passes, which are invoked
+in sequence when rendering the default pass is requested.  Each pass can have a
+Lighting, a DepthTest and a Blend to control how it is rendered.
+
+A Pipeline's render method should normally be called without a Renderer; it
+will create one itself, using the camera specified for the Pipeline.  If a
+Renderer is passed, its camera will be used instead.
+
+Renderables are rendered in the order they were added to the Pipeline.  While
+it's possible to remove renderables as well, using a Scene is recommended if
+frequent add/remove operations are needed.
+
+Pipelines may have post-processors to apply full-screen effects. Framebuffer
+objects are automatically used to pass render results to the post-processors.
+High dynamic range and multisample rendering can also be used.
+*/
 class Pipeline: public Renderable
 {
+public:
+	class Pass
+	{
+	private:
+		Tag tag;
+		const Lighting *lighting;
+		const DepthTest *depth_test;
+		const Blend *blend;
+
+	public:
+		Pass(const Tag &);
+
+		const Tag &get_tag() const { return tag; }
+
+		void set_lighting(const Lighting *);
+		void set_depth_test(const DepthTest *);
+		void set_blend(const Blend *);
+		const Lighting *get_lighting() const { return lighting; }
+		const DepthTest *get_depth_test() const { return depth_test; }
+		const Blend *get_blend() const { return blend; }
+	};
+
 private:
 	struct Slot
 	{
@@ -26,10 +72,27 @@ private:
 		Slot(const Renderable *);
 	};
 
-	typedef std::map<Tag, PipelinePass> PassMap;
+	struct RenderTarget
+	{
+		Framebuffer fbo;
+		Texture2D color;
+		Texture2D depth;
+
+		RenderTarget(unsigned, unsigned, PixelFormat);
+	};
+
+	struct MultisampleTarget
+	{
+		Framebuffer fbo;
+		Renderbuffer color;
+		Renderbuffer depth;
+
+		MultisampleTarget(unsigned, unsigned, unsigned, PixelFormat);
+	};
+
+	typedef std::list<Pass> PassList;
 
-	PassMap passes;
-	std::vector<Tag> pass_order;
+	PassList passes;
 	const Camera *camera;
 	std::vector<Slot> renderables;
 	std::vector<PostProcessor *> postproc;
@@ -37,12 +100,8 @@ private:
 	unsigned height;
 	bool hdr;
 	unsigned samples;
-	Framebuffer *fbo;
-	Texture2D *color_buf;
-	Texture2D *depth_buf;
-	Framebuffer *fbo_ms;
-	Renderbuffer *color_buf_ms;
-	Renderbuffer *depth_buf_ms;
+	RenderTarget *target[2];
+	MultisampleTarget *target_ms;
 
 public:
 	Pipeline(unsigned, unsigned, bool = false);
@@ -52,20 +111,18 @@ public:
 	void set_multisample(unsigned);
 	void set_camera(const Camera *);
 
-	PipelinePass &add_pass(const Tag &tag);
-	PipelinePass &get_pass(const Tag &tag);
-	const PipelinePass &get_pass(const Tag &tag) const;
+	Pass &add_pass(const Tag &tag);
 
 	void add_renderable(const Renderable &);
 	void add_renderable_for_pass(const Renderable &, const Tag &);
 	void remove_renderable(const Renderable &);
 	void add_postprocessor(PostProcessor &);
 
+	virtual void render(const Tag &tag = Tag()) const;
 	virtual void render(Renderer &, const Tag &tag = Tag()) const;
-	void render_all() const;
 
 private:
-	void create_fbos();
+	void create_targets(bool);
 };
 
 } // namespace GL