X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;ds=sidebyside;f=source%2Fanimation%2Fanimation.h;fp=source%2Fanimation%2Fanimation.h;h=6845d23ee3e1652c9f7e49a86e5145f3faa6aa52;hb=7aaec9a70b8d7733429bec043f8e33e02956f266;hp=0000000000000000000000000000000000000000;hpb=bec07999d95b76f4b47cffcc564d0cd0afc0435e;p=libs%2Fgl.git

diff --git a/source/animation/animation.h b/source/animation/animation.h
new file mode 100644
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--- /dev/null
+++ b/source/animation/animation.h
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+#ifndef MSP_GL_ANIMATION_H_
+#define MSP_GL_ANIMATION_H_
+
+#include <msp/core/refptr.h>
+#include <msp/datafile/objectloader.h>
+#include <msp/interpolate/spline.h>
+#include <msp/time/timedelta.h>
+#include "keyframe.h"
+
+namespace Msp {
+namespace GL {
+
+class AnimationEventObserver;
+class Armature;
+class Matrix;
+class Pose;
+
+/**
+An Animation is a sequence of KeyFrames combined with timing information.  The
+state at any point in the animation can be interpolated from the keyframes.
+*/
+class Animation
+{
+public:
+	class Loader: public DataFile::CollectionObjectLoader<Animation>
+	{
+	private:
+		Time::TimeDelta current_time;
+		float start_slope;
+		float end_slope;
+		int slopes_set;
+
+	public:
+		Loader(Animation &);
+		Loader(Animation &, Collection &);
+	private:
+		void init();
+		virtual void finish();
+
+		void check_slopes_and_control(bool, bool);
+		void add_kf(const KeyFrame *, bool, bool);
+		void load_kf(const std::string &, bool);
+		void load_kf_inline(bool);
+
+		void control_keyframe(const std::string &);
+		void control_keyframe_inline();
+		void event(const std::string &);
+		void event1i(const std::string &, int);
+		void event1f(const std::string &, float);
+		void event2f(const std::string &, float, float);
+		void event3f(const std::string &, float, float, float);
+		void event4f(const std::string &, float, float, float, float);
+		void interval(float);
+		void keyframe(const std::string &);
+		void keyframe_inline();
+		void slopes(float, float);
+	};
+
+private:
+	enum CurveTarget
+	{
+		POSITION,
+		EULER,
+		SCALE,
+		UNIFORM
+	};
+
+	class Curve
+	{
+	protected:
+		CurveTarget target;
+		int component;
+
+		Curve(CurveTarget, int);
+	public:
+		virtual ~Curve() { }
+
+		virtual void apply(float, Matrix &) const = 0;
+		virtual void apply(float, KeyFrame::AnimatedUniform &) const = 0;
+	};
+
+	template<unsigned N>
+	class ValueCurve: public Curve
+	{
+	public:
+		typedef typename Interpolate::SplineKnot<double, N> Knot;
+
+	private:
+		Interpolate::Spline<double, 3, N> spline;
+
+	public:
+		ValueCurve(CurveTarget, int, const std::vector<Knot> &);
+
+		virtual void apply(float, Matrix &) const;
+		virtual void apply(float, KeyFrame::AnimatedUniform &) const;
+	};
+
+	struct ExtractComponent
+	{
+		typedef bool (*Extract)(const KeyFrame &, Vector3 &);
+
+		Extract extract;
+		unsigned index;
+		Transform::ComponentMask mask;
+
+		ExtractComponent(Extract e, unsigned i, Transform::ComponentMask m): extract(e), index(i), mask(m) { }
+
+		bool operator()(const KeyFrame &, float &) const;
+	};
+
+	template<unsigned N>
+	struct ExtractUniform
+	{
+		const std::string &name;
+
+		ExtractUniform(const std::string &n): name(n) { }
+
+		bool operator()(const KeyFrame &, typename Interpolate::SplineValue<float, N>::Type &) const;
+	};
+
+	struct TimedKeyFrame
+	{
+		Time::TimeDelta time;
+		RefPtr<const KeyFrame> keyframe;
+		bool control;
+	};
+
+	struct Event
+	{
+		Time::TimeDelta time;
+		std::string name;
+		Variant value;
+	};
+
+	struct UniformInfo
+	{
+		std::string name;
+		unsigned size;
+
+		UniformInfo(const std::string &, unsigned);
+	};
+
+public:
+	class Iterator
+	{
+	private:
+		const Animation *animation;
+		Time::TimeDelta elapsed;
+		std::vector<Event>::const_iterator event_iter;
+		bool end;
+
+	public:
+		Iterator(const Animation &);
+
+		Iterator &operator+=(const Time::TimeDelta &);
+		void dispatch_events(AnimationEventObserver &);
+
+		bool is_end() const { return end; }
+		Matrix get_matrix() const;
+		KeyFrame::AnimatedUniform get_uniform(unsigned) const;
+		Matrix get_pose_matrix(unsigned) const;
+	};
+
+private:
+	const Armature *armature;
+	std::vector<TimedKeyFrame> keyframes;
+	std::vector<Event> events;
+	bool looping;
+	std::vector<UniformInfo> uniforms;
+	std::vector<Curve *> curves;
+	unsigned uniform_curve_offset;
+
+public:
+	Animation();
+	~Animation();
+
+	void set_armature(const Armature &);
+	const Armature *get_armature() const { return armature; }
+
+	unsigned get_n_uniforms() const { return uniforms.size(); }
+	unsigned get_slot_for_uniform(const std::string &) const;
+	const std::string &get_uniform_name(unsigned) const;
+
+	void add_keyframe(const Time::TimeDelta &, const KeyFrame &);
+	void add_keyframe_owned(const Time::TimeDelta &, const KeyFrame *);
+	DEPRECATED void add_keyframe(const Time::TimeDelta &, const KeyFrame &, float);
+	DEPRECATED void add_keyframe(const Time::TimeDelta &, const KeyFrame &, float, float);
+	void add_control_keyframe(const KeyFrame &);
+	void add_control_keyframe_owned(const KeyFrame *);
+private:
+	void add_keyframe(const Time::TimeDelta &, const KeyFrame *, float, float, bool);
+	void add_keyframe(const Time::TimeDelta &, const KeyFrame *, bool, bool);
+	void prepare_keyframe(TimedKeyFrame &);
+	void create_curves();
+	void create_curve(CurveTarget, Transform::ComponentMask, ExtractComponent::Extract);
+	template<unsigned N, typename T>
+	void create_curve(CurveTarget target, int, const T &);
+	static bool extract_position(const KeyFrame &, Vector3 &);
+	static bool extract_euler(const KeyFrame &, Vector3 &);
+	static bool extract_scale(const KeyFrame &, Vector3 &);
+public:
+	void add_event(const Time::TimeDelta &, const std::string &, const Variant & = Variant());
+
+	const Msp::Time::TimeDelta &get_duration() const;
+
+	void set_looping(bool);
+	bool is_looping() const { return looping; }
+};
+
+} // namespace GL
+} // namespace Msp
+
+#endif