mpeg4_animators.c File Reference

#include <gpac/internal/scenegraph_dev.h>
#include <gpac/nodes_mpeg4.h>

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Data Structures
struct	anim_nurbs
struct	AnimatorStack

Enumerations
enum	{   ANIM_LINE, ANIM_QUADRATIC, ANIM_CUBIC, ANIM_NURBS,   ANIM_SPLINE }
enum	{   ANIM_DEFAULT, ANIM_DISCRETE, ANIM_LINEAR, ANIM_PACED,   ANIM_VELOCITY }

Functions
static Fixed	Interpolate (Fixed keyValue1, Fixed keyValue2, Fixed fraction)
static Fixed	GetInterpolateFraction (Fixed key1, Fixed key2, Fixed fraction)
Fixed	do_bisection (Fixed t, SFVec2f a, SFVec2f b, SFVec2f c, SFVec2f d)
static void	anurbs_reset (anim_nurbs *nurbs)
static void	anurbs_init (anim_nurbs *nurbs, u32 type, u32 nCtrl, u32 nKnots, Fixed *knots, u32 nWeight, Fixed *weights)
static void	anurbs_basis (anim_nurbs *nurbs, s32 span, Fixed t)
static s32	anurbs_find_span (anim_nurbs *nurbs, Fixed u)
static SFVec3f	anurbs_get_vec3f (anim_nurbs *nurbs, s32 span, SFVec3f *pts)
static SFVec2f	anurbs_get_vec2f (anim_nurbs *nurbs, s32 span, SFVec2f *pts)
static Fixed	anurbs_get_float (anim_nurbs *nurbs, s32 span, Fixed *vals)
static void	Anim_Destroy (GF_Node *node, void *rs, Bool is_destroy)
static void	Animator_Update (AnimatorStack *stack, u32 keyValueType, u32 nCtrl, MFVec2f *keySpline, u32 nWeight, Fixed *weights)
static Bool	anim_check_frac (Fixed frac, SFVec2f *fromTo)
static void	PA_Update (M_PositionAnimator *pa, AnimatorStack *stack)
static void	PA_SetFraction (GF_Node *node, GF_Route *route)
void	PA_Modified (GF_Node *node, GF_FieldInfo *field)
void	PA_Init (GF_Node *n)
static void	PA2D_Update (M_PositionAnimator2D *pa, AnimatorStack *stack)
static void	PA2D_SetFraction (GF_Node *node, GF_Route *route)
void	PA2D_Modified (GF_Node *node, GF_FieldInfo *field)
void	PA2D_Init (GF_Node *n)
static void	SA_Update (M_ScalarAnimator *sa, AnimatorStack *stack)
void	SA_SetFraction (GF_Node *node, GF_Route *route)
void	SA_Modified (GF_Node *node, GF_FieldInfo *field)
void	SA_Init (GF_Node *n)

Variables
static Fixed	cubic_knots [] = {0,0,0,0, 1.0f , 1.0f , 1.0f , 1.0f }
static Fixed	quadratic_knots [] = {0,0,0, 1.0f , 1.0f , 1.0f }

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Data Structure Documentation

struct anim_nurbs

Collaboration diagram for anim_nurbs:

Data Fields
Fixed *	knots
Fixed *	weights
Fixed *	n
Fixed *	left
Fixed *	right
u32	nknots
u32	nweights
u32	npoints
u32	p
u32	type
Bool	valid

struct AnimatorStack

Collaboration diagram for AnimatorStack:

Data Fields
Bool	is_dirty
u32	anim_type
Fixed	length
SFVec2f	a
SFVec2f	b
SFVec2f	c
SFVec2f	d
anim_nurbs	anurbs

Enumeration Type Documentation

anonymous enum

Enumerator
ANIM_LINE
ANIM_QUADRATIC
ANIM_CUBIC
ANIM_NURBS
ANIM_SPLINE

anonymous enum

Enumerator
ANIM_DEFAULT
ANIM_DISCRETE
ANIM_LINEAR
ANIM_PACED
ANIM_VELOCITY

Function Documentation

static Fixed Interpolate ( Fixed  keyValue1, Fixed  keyValue2, Fixed  fraction  )

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static Fixed GetInterpolateFraction ( Fixed  key1, Fixed  key2, Fixed  fraction  )

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Fixed do_bisection	(	Fixed	t,
		SFVec2f	a,
		SFVec2f	b,
		SFVec2f	c,
		SFVec2f	d
	)

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static void anurbs_reset ( anim_nurbs *  nurbs )

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static void anurbs_init ( anim_nurbs *  nurbs, u32  type, u32  nCtrl, u32  nKnots, Fixed *  knots, u32  nWeight, Fixed *  weights  )

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static void anurbs_basis ( anim_nurbs *  nurbs, s32  span, Fixed  t  )

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static s32 anurbs_find_span ( anim_nurbs *  nurbs, Fixed  u  )

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static SFVec3f anurbs_get_vec3f ( anim_nurbs *  nurbs, s32  span, SFVec3f *  pts  )

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static SFVec2f anurbs_get_vec2f ( anim_nurbs *  nurbs, s32  span, SFVec2f *  pts  )

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static Fixed anurbs_get_float ( anim_nurbs *  nurbs, s32  span, Fixed *  vals  )

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static void Anim_Destroy ( GF_Node *  node, void *  rs, Bool  is_destroy  )

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static void Animator_Update ( AnimatorStack *  stack, u32  keyValueType, u32  nCtrl, MFVec2f *  keySpline, u32  nWeight, Fixed *  weights  )

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static Bool anim_check_frac ( Fixed  frac, SFVec2f *  fromTo  )

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static void PA_Update ( M_PositionAnimator *  pa, AnimatorStack *  stack  )

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static void PA_SetFraction ( GF_Node *  node, GF_Route *  route  )

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void PA_Modified	(	GF_Node *	node,
		GF_FieldInfo *	field
	)

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void PA_Init

(

GF_Node *

n

)

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static void PA2D_Update ( M_PositionAnimator2D *  pa, AnimatorStack *  stack  )

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static void PA2D_SetFraction ( GF_Node *  node, GF_Route *  route  )

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void PA2D_Modified	(	GF_Node *	node,
		GF_FieldInfo *	field
	)

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void PA2D_Init

(

GF_Node *

n

)

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static void SA_Update ( M_ScalarAnimator *  sa, AnimatorStack *  stack  )

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void SA_SetFraction	(	GF_Node *	node,
		GF_Route *	route
	)

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void SA_Modified	(	GF_Node *	node,
		GF_FieldInfo *	field
	)

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void SA_Init

(

GF_Node *

n

)

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Variable Documentation

Fixed cubic_knots[] = {0,0,0,0, 1.0f , 1.0f , 1.0f , 1.0f }

static

Fixed quadratic_knots[] = {0,0,0, 1.0f , 1.0f , 1.0f }

static