mesh.c File Reference

#include <gpac/internal/mesh.h>
#include <gpac/nodes_mpeg4.h>
#include <gpac/nodes_x3d.h>
#include <gpac/color.h>
#include "gl_inc.h"

Include dependency graph for mesh.c:

Data Structures
struct	face_info
struct	pt_info
struct	SCP
struct	SCPInfo

Macros
#define	HIGH_SPEED_RATIO   2
#define	MESH_CHECK_VERTEX(m)
#define	MESH_CHECK_IDX(m)
#define	CYLINDER_SUBDIV   24
#define	CONE_SUBDIV   24
#define	SPHERE_SUBDIV   12
#define	ELLIPSE_SUBDIV   32
#define	COL_TO_RGBA(res, col)   { res.red = col.red; res.green = col.green; res.blue = col.blue; res.alpha = FIX_ONE; }
#define	MESH_GET_COL(thecol, index)
#define	GET_IDX(idx, array)
#define	REGISTER_POINT_FACE(FACE_IDX)
#define	NEAR_ZERO(__x)   (ABS(__x)<=FIX_EPSILON)

Functions
static void	del_aabb_node (AABBNode *node)
void	mesh_reset (GF_Mesh *mesh)
void	mesh_free (GF_Mesh *mesh)
GF_Mesh *	new_mesh ()
static void	mesh_fit_alloc (GF_Mesh *m)
void	mesh_update_bounds (GF_Mesh *mesh)
void	mesh_clone (GF_Mesh *dest, GF_Mesh *orig)
static GF_Vertex	set_vertex (Fixed x, Fixed y, Fixed z, Fixed nx, Fixed ny, Fixed nz, Fixed u, Fixed v)
void	mesh_set_vertex (GF_Mesh *mesh, Fixed x, Fixed y, Fixed z, Fixed nx, Fixed ny, Fixed nz, Fixed u, Fixed v)
void	mesh_set_vertex_v (GF_Mesh *mesh, SFVec3f pt, SFVec3f nor, SFVec2f tx, SFColorRGBA col)
void	mesh_set_vertex_vx (GF_Mesh *mesh, GF_Vertex *vx)
void	mesh_set_point (GF_Mesh *mesh, Fixed x, Fixed y, Fixed z, SFColorRGBA col)
void	mesh_set_index (GF_Mesh *mesh, u32 idx)
void	mesh_set_triangle (GF_Mesh *mesh, u32 v1_idx, u32 v2_idx, u32 v3_idx)
void	mesh_set_line (GF_Mesh *mesh, u32 v1_idx, u32 v2_idx)
void	mesh_recompute_normals (GF_Mesh *mesh)
void	mesh_generate_tex_coords (GF_Mesh *mesh, GF_Node *__texCoords)
void	mesh_new_box (GF_Mesh *mesh, SFVec3f size)
void	mesh_new_unit_bbox (GF_Mesh *mesh)
static void	compute_cylinder (Fixed height, Fixed radius, s32 numFacets, SFVec3f *coords, SFVec2f *texcoords)
void	mesh_new_cylinder (GF_Mesh *mesh, Fixed height, Fixed radius, Bool bottom, Bool side, Bool top, Bool low_res)
void	mesh_new_cone (GF_Mesh *mesh, Fixed height, Fixed radius, Bool bottom, Bool side, Bool low_res)
void	compute_sphere (Fixed radius, SFVec3f *coords, SFVec2f *texcoords, u32 num_steps)
void	mesh_new_sphere (GF_Mesh *mesh, Fixed radius, Bool low_res)
void	mesh_new_rectangle (GF_Mesh *mesh, SFVec2f size, SFVec2f *orig, Bool flip)
void	mesh_new_ellipse (GF_Mesh *mesh, Fixed a_dia, Fixed b_dia, Bool low_res)
void	mesh_from_path_intern (GF_Mesh *mesh, GF_Path *path, Bool make_ccw)
void	mesh_from_path (GF_Mesh *mesh, GF_Path *path)
void	mesh_get_outline (GF_Mesh *mesh, GF_Path *path)
void	mesh_new_ils (GF_Mesh *mesh, GF_Node *__coord, MFInt32 *coordIndex, GF_Node *__color, MFInt32 *colorIndex, Bool colorPerVertex, Bool do_close)
void	mesh_new_ps (GF_Mesh *mesh, GF_Node *__coord, GF_Node *__color)
void	register_point_in_face (struct face_info *fi, u32 pt_index)
void	register_face_in_point (struct pt_info *pi, u32 face_index)
static SFVec3f	smooth_face_normals (struct pt_info *pts, u32 nb_pts, struct face_info *faces, u32 nb_faces, u32 pt_idx_in_face, u32 face_idx, Fixed creaseAngleCos)
void	mesh_new_ifs_intern (GF_Mesh *mesh, GF_Node *__coord, MFInt32 *coordIndex, GF_Node *__color, MFInt32 *colorIndex, Bool colorPerVertex, GF_Node *__normal, MFInt32 *normalIndex, Bool normalPerVertex, GF_Node *__texCoords, MFInt32 *texCoordIndex, Fixed creaseAngle)
void	mesh_new_ifs2d (GF_Mesh *mesh, GF_Node *node)
void	mesh_new_ifs (GF_Mesh *mesh, GF_Node *node)
void	mesh_new_elevation_grid (GF_Mesh *mesh, GF_Node *node)
static void	mesh_extrude_path_intern (GF_Mesh *mesh, GF_Path *path, MFVec3f *thespine, Fixed creaseAngle, Fixed min_cx, Fixed min_cy, Fixed width_cx, Fixed width_cy, Bool begin_cap, Bool end_cap, MFRotation *spine_ori, MFVec2f *spine_scale, Bool tx_along_spine)
void	mesh_extrude_path_ext (GF_Mesh *mesh, GF_Path *path, MFVec3f *thespine, Fixed creaseAngle, Fixed min_cx, Fixed min_cy, Fixed width_cx, Fixed width_cy, Bool begin_cap, Bool end_cap, MFRotation *spine_ori, MFVec2f *spine_scale, Bool tx_along_spine)
void	mesh_extrude_path (GF_Mesh *mesh, GF_Path *path, MFVec3f *thespine, Fixed creaseAngle, Bool begin_cap, Bool end_cap, MFRotation *spine_ori, MFVec2f *spine_scale, Bool tx_along_spine)
void	mesh_new_extrusion (GF_Mesh *mesh, GF_Node *node)

---

Data Structure Documentation

struct face_info

Collaboration diagram for face_info:

Data Fields
SFVec3f	nor
u32	idx_alloc
u32	idx_count
u32 *	idx

struct pt_info

Collaboration diagram for pt_info:

Data Fields
u32	face_alloc
u32	face_count
u32 *	faces

struct SCP

Collaboration diagram for SCP:

Data Fields
SFVec3f	yaxis
SFVec3f	zaxis
SFVec3f	xaxis

struct SCPInfo

Collaboration diagram for SCPInfo:

Data Fields
SFVec3f	pt
SFVec3f	yaxis
SFVec3f	zaxis
SFVec3f	xaxis
u32	max_idx

Macro Definition Documentation

#define HIGH_SPEED_RATIO   2

#define MESH_CHECK_VERTEX

(

m

)

Value:

if (m->v_count == m->v_alloc) { \
                m->v_alloc *= 2;        \
                m->vertices = (GF_Vertex *)gf_realloc(m->vertices, sizeof(GF_Vertex)*m->v_alloc);       \
        }       \

#define MESH_CHECK_IDX

(

m

)

Value:

if (m->i_count == m->i_alloc) { \
                m->i_alloc *= 2;        \
                m->indices = (IDX_TYPE*)gf_realloc(m->indices, sizeof(IDX_TYPE)*m->i_alloc);    \
        }       \

#define CYLINDER_SUBDIV   24

#define CONE_SUBDIV   24

#define SPHERE_SUBDIV   12

#define ELLIPSE_SUBDIV   32

#define COL_TO_RGBA	(		res,
			col
	)		{ res.red = col.red; res.green = col.green; res.blue = col.blue; res.alpha = FIX_ONE; }

#define MESH_GET_COL	(		thecol,
			index
	)

Value:

{\
        if (colorRGB && ((u32) index < colorRGB->color.count) ) COL_TO_RGBA(thecol, colorRGB->color.vals[index])        \
        else if (colorRGBA && (u32) index < colorRGBA->color.count) thecol = colorRGBA->color.vals[index]; \
        } \

#define GET_IDX	(		idx,
			array
	)

Value:

if (idx<array->count && (array->vals[idx]>=0) ) index = array->vals[idx];       \
                else if (idx<c_count) index = idx;      \
                else index = 0; \

#define REGISTER_POINT_FACE

(

FACE_IDX

)

Value:

{       u32 fidx;       \
                fidx = FACE_IDX; \
		mesh_set_vertex_vx(faces[fidx], &vx); \
                if (smooth_normals) {   \
			register_point_in_face(&faces_info[fidx], pidx);     \
			register_face_in_point(&pts_info[pidx], fidx);       \
                } \
        } \

#define NEAR_ZERO

(

__x

)

(ABS(__x)<=FIX_EPSILON)

Function Documentation

static void del_aabb_node ( AABBNode *  node )

static

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void mesh_reset

(

GF_Mesh *

mesh

)

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void mesh_free

(

GF_Mesh *

mesh

)

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GF_Mesh* new_mesh

(

)

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static void mesh_fit_alloc ( GF_Mesh *  m )

static

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void mesh_update_bounds

(

GF_Mesh *

mesh

)

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void mesh_clone	(	GF_Mesh *	dest,
		GF_Mesh *	orig
	)

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static GF_Vertex set_vertex ( Fixed  x, Fixed  y, Fixed  z, Fixed  nx, Fixed  ny, Fixed  nz, Fixed  u, Fixed  v  )

static

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void mesh_set_vertex	(	GF_Mesh *	mesh,
		Fixed	x,
		Fixed	y,
		Fixed	z,
		Fixed	nx,
		Fixed	ny,
		Fixed	nz,
		Fixed	u,
		Fixed	v
	)

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void mesh_set_vertex_v	(	GF_Mesh *	mesh,
		SFVec3f	pt,
		SFVec3f	nor,
		SFVec2f	tx,
		SFColorRGBA	col
	)

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void mesh_set_vertex_vx	(	GF_Mesh *	mesh,
		GF_Vertex *	vx
	)

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void mesh_set_point	(	GF_Mesh *	mesh,
		Fixed	x,
		Fixed	y,
		Fixed	z,
		SFColorRGBA	col
	)

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void mesh_set_index	(	GF_Mesh *	mesh,
		u32	idx
	)

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void mesh_set_triangle	(	GF_Mesh *	mesh,
		u32	v1_idx,
		u32	v2_idx,
		u32	v3_idx
	)

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void mesh_set_line	(	GF_Mesh *	mesh,
		u32	v1_idx,
		u32	v2_idx
	)

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void mesh_recompute_normals

(

GF_Mesh *

mesh

)

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void mesh_generate_tex_coords	(	GF_Mesh *	mesh,
		GF_Node *	__texCoords
	)

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void mesh_new_box	(	GF_Mesh *	mesh,
		SFVec3f	size
	)

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void mesh_new_unit_bbox

(

GF_Mesh *

mesh

)

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static void compute_cylinder ( Fixed  height, Fixed  radius, s32  numFacets, SFVec3f *  coords, SFVec2f *  texcoords  )

static

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void mesh_new_cylinder	(	GF_Mesh *	mesh,
		Fixed	height,
		Fixed	radius,
		Bool	bottom,
		Bool	side,
		Bool	top,
		Bool	low_res
	)

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void mesh_new_cone	(	GF_Mesh *	mesh,
		Fixed	height,
		Fixed	radius,
		Bool	bottom,
		Bool	side,
		Bool	low_res
	)

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void compute_sphere	(	Fixed	radius,
		SFVec3f *	coords,
		SFVec2f *	texcoords,
		u32	num_steps
	)

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void mesh_new_sphere	(	GF_Mesh *	mesh,
		Fixed	radius,
		Bool	low_res
	)

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void mesh_new_rectangle	(	GF_Mesh *	mesh,
		SFVec2f	size,
		SFVec2f *	orig,
		Bool	flip
	)

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void mesh_new_ellipse	(	GF_Mesh *	mesh,
		Fixed	a_dia,
		Fixed	b_dia,
		Bool	low_res
	)

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void mesh_from_path_intern	(	GF_Mesh *	mesh,
		GF_Path *	path,
		Bool	make_ccw
	)

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void mesh_from_path	(	GF_Mesh *	mesh,
		GF_Path *	path
	)

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void mesh_get_outline	(	GF_Mesh *	mesh,
		GF_Path *	path
	)

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void mesh_new_ils	(	GF_Mesh *	mesh,
		GF_Node *	__coord,
		MFInt32 *	coordIndex,
		GF_Node *	__color,
		MFInt32 *	colorIndex,
		Bool	colorPerVertex,
		Bool	do_close
	)

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void mesh_new_ps	(	GF_Mesh *	mesh,
		GF_Node *	__coord,
		GF_Node *	__color
	)

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void register_point_in_face	(	struct face_info *	fi,
		u32	pt_index
	)

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void register_face_in_point	(	struct pt_info *	pi,
		u32	face_index
	)

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static SFVec3f smooth_face_normals ( struct pt_info *  pts, u32  nb_pts, struct face_info *  faces, u32  nb_faces, u32  pt_idx_in_face, u32  face_idx, Fixed  creaseAngleCos  )

static

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void mesh_new_ifs_intern	(	GF_Mesh *	mesh,
		GF_Node *	__coord,
		MFInt32 *	coordIndex,
		GF_Node *	__color,
		MFInt32 *	colorIndex,
		Bool	colorPerVertex,
		GF_Node *	__normal,
		MFInt32 *	normalIndex,
		Bool	normalPerVertex,
		GF_Node *	__texCoords,
		MFInt32 *	texCoordIndex,
		Fixed	creaseAngle
	)

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void mesh_new_ifs2d	(	GF_Mesh *	mesh,
		GF_Node *	node
	)

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void mesh_new_ifs	(	GF_Mesh *	mesh,
		GF_Node *	node
	)

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void mesh_new_elevation_grid	(	GF_Mesh *	mesh,
		GF_Node *	node
	)

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static void mesh_extrude_path_intern ( GF_Mesh *  mesh, GF_Path *  path, MFVec3f *  thespine, Fixed  creaseAngle, Fixed  min_cx, Fixed  min_cy, Fixed  width_cx, Fixed  width_cy, Bool  begin_cap, Bool  end_cap, MFRotation *  spine_ori, MFVec2f *  spine_scale, Bool  tx_along_spine  )

static

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void mesh_extrude_path_ext	(	GF_Mesh *	mesh,
		GF_Path *	path,
		MFVec3f *	thespine,
		Fixed	creaseAngle,
		Fixed	min_cx,
		Fixed	min_cy,
		Fixed	width_cx,
		Fixed	width_cy,
		Bool	begin_cap,
		Bool	end_cap,
		MFRotation *	spine_ori,
		MFVec2f *	spine_scale,
		Bool	tx_along_spine
	)

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void mesh_extrude_path	(	GF_Mesh *	mesh,
		GF_Path *	path,
		MFVec3f *	thespine,
		Fixed	creaseAngle,
		Bool	begin_cap,
		Bool	end_cap,
		MFRotation *	spine_ori,
		MFVec2f *	spine_scale,
		Bool	tx_along_spine
	)

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void mesh_new_extrusion	(	GF_Mesh *	mesh,
		GF_Node *	node
	)

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