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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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/* SCCSid "$SunId$ SGI" */ |
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/* RCSid: $Id$ */ |
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/* |
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* sm.h |
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*/ |
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#ifndef _SM_H_ |
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#define _SM_H_ |
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#include "rhd_sample.h" |
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#include "sm_qtree.h" |
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#include "sm_stree.h" |
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#define NEWSETS |
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#ifndef TRUE |
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#define FALSE 0 |
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#endif |
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#define P_REPLACE_EPS 0.5 |
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#define SQRT3_2 0.8660254 |
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#define MAX_EDGES 200 |
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#define ON_V 1 |
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#define ON_P 2 |
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#define ON_E 3 |
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#define IN_T 4 |
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#define SM_INVALID -1 |
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#define SM_DEFAULT 0 |
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#define SM_EXTRA_POINTS 5 |
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#define SM_EXTRA_VERTS SM_EXTRA_POINTS |
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#define SM_POINTSIZ (3*sizeof(float)+ sizeof(int4)) |
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#define SM_POINT_SPACE SM_EXTRA_POINTS * SM_POINTSIZ |
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#ifdef SMLFLT |
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#define VERT_EPS 2e-3 /* min edge length in radians */ |
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#define COS_VERT_EPS 0.999998 /* cos min edge length in radians */ |
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#define EDGE_EPS 2e-5 /* min distance until considered "on-edge"*/ |
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#define COLINEAR_EPS 1e-10 /* min sine of between edges angle :amount off PI */ |
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#else |
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#define VERT_EPS 5e-4 /* min edge length in radians */ |
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#define COS_VERT_EPS 0.999999875 /* cos min edge length in radians */ |
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#define EDGE_EPS 2e-7 /* min distance until considered "on-edge"*/ |
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#define COLINEAR_EPS 1e-10 /* min sine of between edges angle :amount off PI*/ |
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#endif |
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#define SM_INC_PERCENT 0.60 |
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#define EV_EPS EDGE_EPS /* Minimum edge-vertex distance */ |
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#define S_REPLACE_SCALE (5.*5.) /* if (distance to new point squared) is |
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> (triangle edge length squared*S_REPLACE_SCALE):for all edges/ |
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triangle vertices: new point is puncture point: dont add*/ |
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#define S_REPLACE_TRI 2e-8 /* .052 radians to the sixth power */ |
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#define SM_DEFAULT 0 |
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#define SM_BASE_POINTS 162 |
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#define SM_BASE_TRIS 320 |
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#define SM_BASE_VERTS SM_BASE_POINTS |
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#define SM_VIEW_FRAC 0.1 |
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#define SM_ALL_LEVELS -1 |
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typedef int VERT; /* One triangle that vertex belongs to- the rest |
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are derived by traversing neighbors */ |
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typedef struct _EDGE { |
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int verts[2]; |
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S_ID verts[2]; |
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int tris[2]; |
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} EDGE; |
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#define E_NTH_VERT(e,i) ((e>0)?Edges[(e)].verts[(i)]:Edges[-(e)].verts[(1-i)]) |
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#define SET_E_NTH_VERT(e,i,v) if(e>0) Edges[(e)].verts[(i)]=(v); \ |
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else Edges[-(e)].verts[(1-i)]=(v) |
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#define E_NTH_TRI(e,i) ((e>0)?Edges[(e)].tris[(i)]:Edges[-(e)].tris[(1-i)]) |
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#define SET_E_NTH_TRI(e,i,v) if(e>0) Edges[(e)].tris[(i)]=(v); \ |
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else Edges[-(e)].tris[(1-i)]=(v) |
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#define eNew_edge() (((Ecnt) < MAX_EDGES)?(++Ecnt):SM_INVALID) |
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#define eClear_edges() (Ecnt = 0) |
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#define eClear_edges() (Ecnt = 0,free(Edges),Edges=NULL) |
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#define FOR_ALL_EDGES(i) for((i)=1; (i) <= Ecnt; i++) |
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#define FOR_ALL_EDGES_FROM(e,i) for((i)=++e; (i) <= Ecnt; i++) |
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#define FOR_ALL_EDGES_FROM(e,i) for((i)=e+1; (i) <= Ecnt; i++) |
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typedef struct _TRI { |
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int verts[3]; /* Ids into sample and vertex array for each vertex*/ |
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S_ID verts[3]; /* Ids into sample and vertex array for each vertex*/ |
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int nbrs[3]; /* Ids for neighboring triangles: -1 if invalid */ |
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}TRI; |
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#define T_NTH_V(t,i) ((t)->verts[(i)]) |
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#define T_WHICH_V(t,i) \ |
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(T_NTH_V(t,0)==(i)?0:T_NTH_V(t,1)==(i)?1:T_NTH_V(t,2)==(i)?2:-1) |
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#define T_NEXT_FREE(t) ((t)->verts[0]) |
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#define T_VALID_FLAG(t) ((t)->verts[1]) |
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#define T_NEXT_FREE(t) ((t)->nbrs[0]) |
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#define T_VALID_FLAG(t) ((t)->nbrs[1]) |
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#define T_IS_VALID(t) (T_VALID_FLAG(t)!=-1) |
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#define T_FLAGS 4 |
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#define T_FLAG_BYTES T_FLAGS/8.0 |
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#define T_TOTAL_FLAG_BYTES(c) ((((c)+31)>>5)*sizeof(int4)) |
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typedef struct _SM { |
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FVECT view_center; /* Canonical view center defining unit sphere */ |
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RSAMP *samples; /* Sample point information */ |
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STREE locator; /* spherical quadtree for point/triangle location */ |
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SAMP *samples; /* Sample point information */ |
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STREE locator; /* spherical quadtree for point/triangle location */ |
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int max_tris; /* Maximum number of triangles */ |
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int tri_cnt; /* Total number of tris ever alloc at one time*/ |
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int num_tris; /* Current number of sample (nonbase)triangles */ |
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int num_tri; /* Current number of triangles */ |
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int free_tris; /* pointer to free_list */ |
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int max_verts; /* Maximum number of vertices in the mesh */ |
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TRI *tris; /* Pointer to list of triangle structs */ |
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VERT *verts; /* List of vertices */ |
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int4 *flags[T_FLAGS]; /* Bit 0 set if active(in current frustum) */ |
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/* Bit 1 set if not rendered since created */ |
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/* Bit 2 set if base triangle */ |
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/* Bit 3 set used for LRU replacement */ |
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char *base; /* Allocated space */ |
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/* Bit 1 set if not rendered since created */ |
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/* Bit 2 set if base triangle */ |
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}SM; |
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#define T_ACTIVE_FLAG 0 |
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#define T_NEW_FLAG 1 |
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#define T_BASE_FLAG 2 |
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#define T_LRU_FLAG 3 |
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#define T_BG_FLAG 3 |
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#define SM_VIEW_CENTER(m) ((m)->view_center) |
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#define SM_SAMP(m) ((m)->samples) |
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#define SM_LOCATOR(m) (&((m)->locator)) |
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#define SM_MAX_TRIS(m) ((m)->max_tris) |
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#define SM_TRI_CNT(m) ((m)->tri_cnt) |
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#define SM_NUM_TRIS(m) ((m)->num_tris) |
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#define SM_NUM_TRI(m) ((m)->num_tri) |
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#define SM_FREE_TRIS(m) ((m)->free_tris) |
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#define SM_MAX_VERTS(m) ((m)->max_verts) |
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#define SM_TRIS(m) ((m)->tris) |
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#define SM_VERTS(m) ((m)->verts) |
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#define SM_NTH_FLAGS(m,n) ((m)->flags[(n)]) |
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#define SM_BASE(m) ((m)->base) |
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#define SM_FLAGS(m) ((m)->flags) |
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#define TF_OFFSET(n) ((n) >> 5) |
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#define TF_BIT(n) ((n) & 0x1f) |
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#define SM_IS_NTH_T_FLAG(sm,n,f) (SM_NTH_FLAGS(sm,f)[TF_OFFSET(n)] & (0x1 <<TF_BIT(n))) |
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#define SM_SET_NTH_T_FLAG(sm,n,f) (SM_NTH_FLAGS(sm,f)[TF_OFFSET(n)] |= (0x1<<TF_BIT(n))) |
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#define SM_CLEAR_NTH_T_FLAG(sm,n,f) (SM_NTH_FLAGS(sm,f)[TF_OFFSET(n)] &= ~(0x1<<TF_BIT(n))) |
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#define SM_IS_NTH_T_FLAG(sm,n,f) IS_FLAG(SM_NTH_FLAGS(sm,f),n) |
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#define SM_SET_NTH_T_FLAG(sm,n,f) SET_FLAG(SM_NTH_FLAGS(sm,f),n) |
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#define SM_CLR_NTH_T_FLAG(sm,n,f) CLR_FLAG(SM_NTH_FLAGS(sm,f),n) |
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#define SM_IS_NTH_T_ACTIVE(sm,n) SM_IS_NTH_T_FLAG(sm,n,T_ACTIVE_FLAG) |
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#define SM_IS_NTH_T_BASE(sm,n) SM_IS_NTH_T_FLAG(sm,n,T_BASE_FLAG) |
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#define SM_IS_NTH_T_NEW(sm,n) SM_IS_NTH_T_FLAG(sm,n,T_NEW_FLAG) |
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#define SM_IS_NTH_T_LRU(sm,n) SM_IS_NTH_T_FLAG(sm,n,T_LRU_FLAG) |
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#define SM_IS_NTH_T_BG(sm,n) SM_IS_NTH_T_FLAG(sm,n,T_BG_FLAG) |
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#define SM_SET_NTH_T_ACTIVE(sm,n) SM_SET_NTH_T_FLAG(sm,n,T_ACTIVE_FLAG) |
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#define SM_SET_NTH_T_BASE(sm,n) SM_SET_NTH_T_FLAG(sm,n,T_BASE_FLAG) |
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#define SM_SET_NTH_T_NEW(sm,n) SM_SET_NTH_T_FLAG(sm,n,T_NEW_FLAG) |
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#define SM_SET_NTH_T_LRU(sm,n) SM_SET_NTH_T_FLAG(sm,n,T_LRU_FLAG) |
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#define SM_SET_NTH_T_NEW(sm,n) SM_SET_NTH_T_FLAG(sm,n,T_NEW_FLAG) |
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#define SM_SET_NTH_T_BG(sm,n) SM_SET_NTH_T_FLAG(sm,n,T_BG_FLAG) |
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#define SM_CLEAR_NTH_T_ACTIVE(sm,n) SM_CLEAR_NTH_T_FLAG(sm,n,T_ACTIVE_FLAG) |
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#define SM_CLEAR_NTH_T_BASE(sm,n) SM_CLEAR_NTH_T_FLAG(sm,n,T_BASE_FLAG) |
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#define SM_CLEAR_NTH_T_NEW(sm,n) SM_CLEAR_NTH_T_FLAG(sm,n,T_NEW_FLAG) |
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#define SM_CLEAR_NTH_T_LRU(sm,n) SM_CLEAR_NTH_T_FLAG(sm,n,T_LRU_FLAG) |
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#define SM_CLR_NTH_T_ACTIVE(sm,n) SM_CLR_NTH_T_FLAG(sm,n,T_ACTIVE_FLAG) |
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#define SM_CLR_NTH_T_BASE(sm,n) SM_CLR_NTH_T_FLAG(sm,n,T_BASE_FLAG) |
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#define SM_CLR_NTH_T_NEW(sm,n) SM_CLR_NTH_T_FLAG(sm,n,T_NEW_FLAG) |
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#define SM_CLR_NTH_T_BG(sm,n) SM_CLR_NTH_T_FLAG(sm,n,T_BG_FLAG) |
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#define SM_NTH_TRI(m,n) (&(SM_TRIS(m)[(n)])) |
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#define SM_NTH_VERT(m,n) (SM_VERTS(m)[(n)]) |
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#define SM_FREE_TRI_ID(m,n) (n = SM_FREE_TRIS(m)==-1? \ |
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(SM_TRI_CNT(m)<SM_MAX_TRIS(m)?SM_TRI_CNT(m)++:-1):(n=SM_FREE_TRIS(m), \ |
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SM_FREE_TRIS(m)=T_NEXT_FREE(SM_NTH_TRI(m,SM_FREE_TRIS(m))),n)) |
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#define SM_NTH_VERT(m,n) S_NTH_INFO(SM_SAMP(m),n) |
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#define SM_T_ID_VALID(s,t_id) T_IS_VALID(SM_NTH_TRI(s,t_id)) |
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#define SM_SAMP_BASE(m) RS_BASE(SM_SAMP(m)) |
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#define SM_SAMP_FREE(m) RS_FREE(SM_SAMP(m)) |
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#define SM_SAMP_EOL(m) RS_EOL(SM_SAMP(m)) |
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#define SM_MAX_SAMP(m) RS_MAX_SAMP(SM_SAMP(m)) |
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#define SM_MAX_AUX_PT(m) RS_MAX_AUX_PT(SM_SAMP(m)) |
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#define SM_NTH_WV(m,i) RS_NTH_W_PT(SM_SAMP(m),i) |
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#define SM_NTH_W_DIR(m,i) RS_NTH_W_DIR(SM_SAMP(m),i) |
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#define SM_NTH_RGB(m,i) RS_NTH_RGB(SM_SAMP(m),i) |
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#define SM_RGB(m) RS_RGB(SM_SAMP(m)) |
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#define SM_BRT(m) RS_BRT(SM_SAMP(m)) |
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#define SM_NTH_BRT(m,i) RS_NTH_BRT(SM_SAMP(m),i) |
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#define SM_CHR(m) RS_CHR(SM_SAMP(m)) |
152 |
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#define SM_NTH_CHR(m,i) RS_NTH_CHR(SM_SAMP(m),i) |
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#define SM_NUM_SAMP(m) RS_NUM_SAMP(SM_SAMP(m)) |
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#define SM_TONE_MAP(m) RS_TONE_MAP(SM_SAMP(m)) |
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#define SM_MAX_SAMP(m) S_MAX_SAMP(SM_SAMP(m)) |
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#define SM_MAX_POINTS(m) S_MAX_POINTS(SM_SAMP(m)) |
153 |
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#define SM_SAMP_BASE(m) S_BASE(SM_SAMP(m)) |
154 |
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#define SM_NTH_WV(m,i) S_NTH_W_PT(SM_SAMP(m),i) |
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#define SM_NTH_W_DIR(m,i) S_NTH_W_DIR(SM_SAMP(m),i) |
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#define SM_DIR_ID(m,i) (!SM_BASE_ID(m,i) && SM_NTH_W_DIR(m,i)==-1) |
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#define SM_NTH_RGB(m,i) S_NTH_RGB(SM_SAMP(m),i) |
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#define SM_RGB(m) S_RGB(SM_SAMP(m)) |
159 |
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#define SM_WP(m) S_W_PT(SM_SAMP(m)) |
160 |
+ |
#define SM_BRT(m) S_BRT(SM_SAMP(m)) |
161 |
+ |
#define SM_NTH_BRT(m,i) S_NTH_BRT(SM_SAMP(m),i) |
162 |
+ |
#define SM_CHR(m) S_CHR(SM_SAMP(m)) |
163 |
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#define SM_NTH_CHR(m,i) S_NTH_CHR(SM_SAMP(m),i) |
164 |
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#define SM_NUM_SAMP(m) S_NUM_SAMP(SM_SAMP(m)) |
165 |
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#define SM_TONE_MAP(m) S_TONE_MAP(SM_SAMP(m)) |
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|
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#define SM_ALLOWED_VIEW_CHANGE(m) (SM_NUM_SAMP(m)/smDist_sum*SM_VIEW_FRAC) |
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#define SM_FOR_ALL_FLAGGED_TRIS(m,i,w,b) for(i=smNext_tri_flag_set(m,0,w,b); \ |
159 |
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i < SM_TRI_CNT(m); i=smNext_tri_flag_set(m,i+1,w,b)) |
160 |
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|
161 |
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#define SM_FOR_ALL_ACTIVE_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_ACTIVE_FLAG,0) |
162 |
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#define SM_FOR_ALL_NEW_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_NEW_FLAG,0) |
163 |
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#define SM_FOR_ALL_BASE_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_BASE_FLAG,0) |
164 |
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#define SM_FOR_ALL_VALID_TRIS(m,i) for(i=smNext_valid_tri(m,0); \ |
165 |
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i < SM_TRI_CNT(m); i=smNext_valid_tri(m,i+1)) |
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|
167 |
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#define SM_FOR_ALL_ACTIVE_FG_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_ACTIVE_FLAG,1) |
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|
169 |
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#define SM_FOR_ALL_ACTIVE_BG_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_ACTIVE_FLAG,2) |
170 |
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171 |
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169 |
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#define SM_FOR_ALL_ADJACENT_TRIS(sm,id,t) for(t=smTri_next_ccw_nbr(sm,t,id); \ |
170 |
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t!=SM_NTH_TRI(sm,SM_NTH_VERT(sm,id)); t=smTri_next_ccw_nbr(sm,t,id)) |
171 |
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172 |
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#define SM_INVALID_SAMP_ID(sm,id) (((id) < 0) || ((id) >= SM_MAX_SAMP(sm))) |
173 |
< |
#define SM_INVALID_POINT_ID(sm,id) (((id) < 0) || ((id) >= SM_MAX_AUX_PT(sm))) |
177 |
< |
#define SM_T_CENTROID(sm,t,c) tri_centroid(SM_NTH_WV(sm,T_NTH_V(t,0)),SM_NTH_WV(sm,T_NTH_V(t,1)),SM_NTH_WV(sm,T_NTH_V(t,2)),c) |
173 |
> |
#define SM_INVALID_POINT_ID(sm,id) (((id) < 0) || ((id) >= SM_MAX_POINTS(sm))) |
174 |
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#define SM_T_NTH_WV(sm,t,i) (SM_NTH_WV(sm,T_NTH_V(t,i))) |
175 |
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176 |
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#define SM_BASE_ID(s,i) \ |
177 |
< |
((i) >= RS_MAX_SAMP(SM_SAMP(s)) && (i) < RS_MAX_AUX_PT(SM_SAMP(s))) |
177 |
> |
((i) >= S_MAX_SAMP(SM_SAMP(s)) && (i) < S_MAX_BASE_PT(SM_SAMP(s))) |
178 |
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179 |
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#define SM_BG_SAMPLE(sm,i) (SM_NTH_W_DIR(sm,i)==-1) |
180 |
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187 |
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188 |
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#define SM_FOR_ALL_SAMPLES(sm,i) for((i)=0;i < SM_NUM_SAMP(sm);(i)++) |
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190 |
< |
typedef struct _T_DEPTH { |
191 |
< |
int tri; |
196 |
< |
double depth; |
197 |
< |
}T_DEPTH; |
190 |
> |
#define SM_FOR_ALL_VALID_TRIS(m,i) for((i)=0,(i)=smNext_valid_tri(m,i);(i)< \ |
191 |
> |
SM_NUM_TRI(m); (i)++,(i)= smNext_valid_tri(m,i)) |
192 |
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193 |
+ |
#define SM_FOR_ALL_FLAGGED_TRIS(m,i,w,b) for(i=0,i=smNext_tri_flag_set(m,i,w,b);i < SM_NUM_TRI(m);i++,i=smNext_tri_flag_set(m,i,w,b)) |
194 |
+ |
#define SM_FOR_ALL_ACTIVE_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_ACTIVE_FLAG,0) |
195 |
+ |
#define smInit_locator(sm) stInit(SM_LOCATOR(sm)) |
196 |
+ |
#define smAlloc_locator(sm) stAlloc(SM_LOCATOR(sm)) |
197 |
+ |
#define smFree_locator(sm) stFree(SM_LOCATOR(sm)) |
198 |
+ |
#define smUnalloc_samp(sm,id) sUnalloc_samp(SM_SAMP(sm),id) |
199 |
+ |
#define smPoint_locate_cell(sm,pt) stPoint_locate(SM_LOCATOR(sm),pt) |
200 |
+ |
#define smFree_samples(sm) sFree(SM_SAMP(sm)) |
201 |
+ |
#define smInit_samples(sm) sInit(SM_SAMP(sm)) |
202 |
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203 |
+ |
#define SM_S_NTH_QT(sm,s_id) S_NTH_INFO1(SM_SAMP(sm),s_id) |
204 |
+ |
#define smClear_vert(sm,id) (SM_NTH_VERT(sm,id) = INVALID) |
205 |
+ |
|
206 |
+ |
#define freebuf(b) tempbuf(-1) |
207 |
+ |
|
208 |
+ |
typedef struct _RT_ARGS_{ |
209 |
+ |
FVECT orig,dir; |
210 |
+ |
int t_id; |
211 |
+ |
S_ID *os; |
212 |
+ |
}RT_ARGS; |
213 |
+ |
|
214 |
+ |
typedef struct _S_ARGS_{ |
215 |
+ |
S_ID s_id; |
216 |
+ |
S_ID n_id; |
217 |
+ |
}S_ARGS; |
218 |
+ |
|
219 |
+ |
|
220 |
+ |
typedef struct _ADD_ARGS { |
221 |
+ |
int t_id; |
222 |
+ |
S_ID *del_set; |
223 |
+ |
}ADD_ARGS; |
224 |
+ |
|
225 |
|
extern SM *smMesh; |
201 |
– |
extern int smNew_tri_cnt; |
226 |
|
extern double smDist_sum; |
227 |
|
|
228 |
+ |
|
229 |
|
#ifdef TEST_DRIVER |
230 |
|
extern VIEW View; |
231 |
|
extern VIEW Current_View; |
232 |
|
extern int Pick_tri,Picking,Pick_samp; |
233 |
|
extern FVECT Pick_point[500],Pick_origin,Pick_dir; |
234 |
|
extern FVECT Pick_v0[500],Pick_v1[500],Pick_v2[500]; |
235 |
+ |
extern int Pick_q[500]; |
236 |
|
extern FVECT P0,P1,P2; |
237 |
|
extern int Pick_cnt; |
238 |
|
extern FVECT FrustumNear[4],FrustumFar[4]; |
239 |
|
#endif |
240 |
|
|
241 |
< |
#ifdef DEBUG |
242 |
< |
extern int Malloc_cnt; |
243 |
< |
#endif |
241 |
> |
|
242 |
> |
/* |
243 |
> |
* int |
244 |
> |
* smInit(n) : Initialize/clear data structures for n entries |
245 |
> |
* int n; |
246 |
> |
* |
247 |
> |
* Initialize sampL and other data structures for at least n samples. |
248 |
> |
* If n is 0, then free data structures. Return number actually allocated. |
249 |
> |
* |
250 |
> |
* |
251 |
> |
* int |
252 |
> |
* smNewSamp(c, p, v) : register new sample point and return index |
253 |
> |
* COLR c; : pixel color (RGBE) |
254 |
> |
* FVECT p; : world intersection point |
255 |
> |
* FVECT v; : ray direction vector |
256 |
> |
* |
257 |
> |
* Add new sample point to data structures, removing old values as necessary. |
258 |
> |
* New sample representation will be output in next call to smUpdate(). |
259 |
> |
* |
260 |
> |
* |
261 |
> |
* int |
262 |
> |
* smFindSamp(orig, dir): intersect ray with 3D rep. and find closest sample |
263 |
> |
* FVECT orig, dir; |
264 |
> |
* |
265 |
> |
* Find the closest sample to the given ray. Return -1 on failure. |
266 |
> |
* |
267 |
> |
*/ |
268 |
|
#endif |
269 |
|
|
270 |
|
|