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#ifndef __PARAMETRIZER_INTERN_H__
#define __PARAMETRIZER_INTERN_H__
/* Utils */
#if 0
#define param_assert(condition);
#define param_warning(message);
#define param_test_equals_ptr(condition);
#define param_test_equals_int(condition);
#else
#define param_assert(condition) \
if (!(condition)) \
{ /*printf("Assertion %s:%d\n", __FILE__, __LINE__); abort();*/ }
#define param_warning(message) \
{ /*printf("Warning %s:%d: %s\n", __FILE__, __LINE__, message);*/ }
#define param_test_equals_ptr(str, a, b) \
if (a != b) \
{ /*printf("Equals %s => %p != %p\n", str, a, b);*/ };
#define param_test_equals_int(str, a, b) \
if (a != b) \
{ /*printf("Equals %s => %d != %d\n", str, a, b);*/ };
#endif
typedef enum PBool {
P_TRUE = 1,
P_FALSE = 0
} PBool;
/* Special Purpose Hash */
typedef long PHashKey;
typedef struct PHashLink {
struct PHashLink *next;
PHashKey key;
} PHashLink;
typedef struct PHash {
PHashLink **list;
PHashLink **buckets;
int size, cursize, cursize_id;
} PHash;
struct PVert;
struct PEdge;
struct PFace;
struct PChart;
struct PHandle;
/* Simplices */
typedef struct PVert {
struct PVert *nextlink;
union PVertUnion {
PHashKey key; /* construct */
int id; /* abf/lscm matrix index */
float distortion; /* area smoothing */
HeapNode *heaplink; /* edge collapsing */
} u;
struct PEdge *edge;
float *co;
float uv[2];
unsigned char flag;
} PVert;
typedef struct PEdge {
struct PEdge *nextlink;
union PEdgeUnion {
PHashKey key; /* construct */
int id; /* abf matrix index */
HeapNode *heaplink; /* fill holes */
struct PEdge *nextcollapse; /* simplification */
} u;
struct PVert *vert;
struct PEdge *pair;
struct PEdge *next;
struct PFace *face;
float *orig_uv, old_uv[2];
unsigned short flag;
} PEdge;
typedef struct PFace {
struct PFace *nextlink;
union PFaceUnion {
PHashKey key; /* construct */
int chart; /* construct splitting*/
float area3d; /* stretch */
int id; /* abf matrix index */
} u;
struct PEdge *edge;
unsigned char flag;
} PFace;
enum PVertFlag {
PVERT_PIN = 1,
PVERT_SELECT = 2,
PVERT_INTERIOR = 4,
PVERT_COLLAPSE = 8,
PVERT_SPLIT = 16
};
enum PEdgeFlag {
PEDGE_SEAM = 1,
PEDGE_VERTEX_SPLIT = 2,
PEDGE_PIN = 4,
PEDGE_SELECT = 8,
PEDGE_DONE = 16,
PEDGE_FILLED = 32,
PEDGE_COLLAPSE = 64,
PEDGE_COLLAPSE_EDGE = 128,
PEDGE_COLLAPSE_PAIR = 256
};
/* for flipping faces */
#define PEDGE_VERTEX_FLAGS (PEDGE_PIN)
enum PFaceFlag {
PFACE_CONNECTED = 1,
PFACE_FILLED = 2,
PFACE_COLLAPSE = 4
};
/* Chart */
typedef struct PChart {
PVert *verts;
PEdge *edges;
PFace *faces;
int nverts, nedges, nfaces;
PVert *collapsed_verts;
PEdge *collapsed_edges;
PFace *collapsed_faces;
union PChartUnion {
struct PChartLscm {
NLContext context;
float *abf_alpha;
PVert *pin1, *pin2;
} lscm;
struct PChartPack {
float rescale, area;
float size[2], trans[2];
} pack;
} u;
unsigned char flag;
struct PHandle *handle;
} PChart;
enum PChartFlag {
PCHART_NOPACK = 1
};
enum PHandleState {
PHANDLE_STATE_ALLOCATED,
PHANDLE_STATE_CONSTRUCTED,
PHANDLE_STATE_LSCM,
PHANDLE_STATE_STRETCH
};
typedef struct PHandle {
enum PHandleState state;
MemArena *arena;
PChart *construction_chart;
PHash *hash_verts;
PHash *hash_edges;
PHash *hash_faces;
PChart **charts;
int ncharts;
float aspx, aspy;
RNG *rng;
float blend;
} PHandle;
#endif /*__PARAMETRIZER_INTERN_H__*/
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