archive/blender-archive
Archived
1
1
Fork 0
Code Pull Requests Packages Activity

2.5/Sculpt:

Browse Source 
* Deleted unused file
This commit is contained in:
Nicholas Bishop
2009-08-23 17:03:06 +00:00
parent 19b81733cc
commit 2c5cbd4c7c
1 changed files with 0 additions and 274 deletions
Download Patch File Download Diff File Expand all files Collapse all files

274
source/blender/editors/sculpt_paint/sculpt_stroke.c
View File

@@ -1,274 +0,0 @@
/*
* $Id$
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2007 by Nicholas Bishop
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*
* Storage and manipulation of sculptmode brush strokes.
*
*/
#include "MEM_guardedalloc.h"
#include "DNA_listBase.h"
#include "DNA_scene_types.h"
#include "BKE_sculpt.h"
#include "BLI_blenlib.h"
#include "BIF_gl.h"
#include "sculpt_intern.h"
#include <math.h>
/* Temporary storage of input stroke control points */
typedef struct StrokePoint {
struct StrokePoint *next, *prev;
short x, y;
} StrokePoint;
typedef struct SculptStroke {
short (*loc)[2];
int max;
int index;
float length;
ListBase final;
StrokePoint *final_mem;
float offset;
} SculptStroke;
SculptStroke *sculpt_stroke_new(const int max)
{
SculptStroke *stroke = MEM_callocN(sizeof(SculptStroke), "SculptStroke");
stroke->loc = MEM_callocN(sizeof(short) * 4 * max, "SculptStroke.loc");
stroke->max = max;
stroke->index = -1;
return stroke;
}
void sculpt_stroke_free(SculptStroke *stroke)
{
if(stroke) {
if(stroke->loc) MEM_freeN(stroke->loc);
if(stroke->final_mem) MEM_freeN(stroke->final_mem);
MEM_freeN(stroke);
}
}
void sculpt_stroke_add_point(SculptStroke *stroke, const short x, const short y)
{
const int next = stroke->index + 1;
if(stroke->index == -1) {
stroke->loc[0][0] = x;
stroke->loc[0][1] = y;
stroke->index = 0;
}
else if(next < stroke->max) {
const int dx = x - stroke->loc[stroke->index][0];
const int dy = y - stroke->loc[stroke->index][1];
stroke->loc[next][0] = x;
stroke->loc[next][1] = y;
stroke->length += sqrt(dx*dx + dy*dy);
stroke->index = next;
}
}
static void sculpt_stroke_smooth(SculptStroke *stroke)
{
/* Apply smoothing (exclude the first and last points)*/
StrokePoint *p = stroke->final.first;
if(p && p->next && p->next->next) {
for(p = p->next->next; p && p->next && p->next->next; p = p->next) {
p->x = p->prev->prev->x*0.1 + p->prev->x*0.2 + p->x*0.4 + p->next->x*0.2 + p->next->next->x*0.1;
p->y = p->prev->prev->y*0.1 + p->prev->y*0.2 + p->y*0.4 + p->next->y*0.2 + p->next->next->y*0.1;
}
}
}
static void sculpt_stroke_create_final(SculptStroke *stroke)
{
if(stroke) {
StrokePoint *p, *pnext;
int i;
/* Copy loc into final */
if(stroke->final_mem)
MEM_freeN(stroke->final_mem);
stroke->final_mem = MEM_callocN(sizeof(StrokePoint) * (stroke->index + 1) * 2, "SculptStroke.final");
stroke->final.first = stroke->final.last = NULL;
for(i = 0; i <= stroke->index; ++i) {
p = &stroke->final_mem[i];
p->x = stroke->loc[i][0];
p->y = stroke->loc[i][1];
BLI_addtail(&stroke->final, p);
}
/* Remove shortest edges */
if(stroke->final.first) {
for(p = ((StrokePoint*)stroke->final.first)->next; p && p->next; p = pnext) {
const int dx = p->x - p->prev->x;
const int dy = p->y - p->prev->y;
const float len = sqrt(dx*dx + dy*dy);
pnext = p->next;
if(len < 10) {
BLI_remlink(&stroke->final, p);
}
}
}
sculpt_stroke_smooth(stroke);
/* Subdivide edges */
for(p = stroke->final.first; p && p->next; p = pnext) {
StrokePoint *np = &stroke->final_mem[i++];
pnext = p->next;
np->x = (p->x + p->next->x) / 2;
np->y = (p->y + p->next->y) / 2;
BLI_insertlink(&stroke->final, p, np);
}
sculpt_stroke_smooth(stroke);
}
}
static float sculpt_stroke_seglen(StrokePoint *p1, StrokePoint *p2)
{
int dx = p2->x - p1->x;
int dy = p2->y - p1->y;
return sqrt(dx*dx + dy*dy);
}
static float sculpt_stroke_final_length(SculptStroke *stroke)
{
StrokePoint *p;
float len = 0;
for(p = stroke->final.first; p && p->next; ++p)
len += sculpt_stroke_seglen(p, p->next);
return len;
}
/* If partial is nonzero, cuts off apply after that length has been processed */
static StrokePoint *sculpt_stroke_apply_generic(Sculpt *sd, SculptStroke *stroke, const int partial)
{
const int sdspace = 0; //XXX: sd->spacing;
const short spacing = sdspace > 0 ? sdspace : 2;
const int dots = sculpt_stroke_final_length(stroke) / spacing;
int i;
StrokePoint *p = stroke->final.first;
float startloc = stroke->offset;
for(i = 0; i < dots && p && p->next; ++i) {
const float dotloc = spacing * i;
short co[2];
float len = sculpt_stroke_seglen(p, p->next);
float u, v;
/* Find edge containing dot */
while(dotloc > startloc + len && p && p->next && p->next->next) {
p = p->next;
startloc += len;
len = sculpt_stroke_seglen(p, p->next);
}
if(!p || !p->next || dotloc > startloc + len)
break;
if(partial && startloc > partial) {
/* Calculate offset for next stroke segment */
stroke->offset = startloc + len - dotloc;
break;
}
u = (dotloc - startloc) / len;
v = 1 - u;
co[0] = p->x*v + p->next->x*u;
co[1] = p->y*v + p->next->y*u;
//do_symmetrical_brush_actions(sd, a, co, NULL);
}
return p ? p->next : NULL;
}
void sculpt_stroke_apply(Sculpt *sd, SculptStroke *stroke)
{
/* TODO: make these values user-modifiable? */
const int partial_len = 100;
const int min_len = 200;
if(stroke) {
sculpt_stroke_create_final(stroke);
if(sculpt_stroke_final_length(stroke) > min_len) {
StrokePoint *p = sculpt_stroke_apply_generic(sd, stroke, partial_len);
/* Replace remaining values in stroke->loc with remaining stroke->final values */
stroke->index = -1;
stroke->length = 0;
for(; p; p = p->next) {
++stroke->index;
stroke->loc[stroke->index][0] = p->x;
stroke->loc[stroke->index][1] = p->y;
if(p->next) {
stroke->length += sculpt_stroke_seglen(p, p->next);
}
}
}
}
}
void sculpt_stroke_apply_all(Sculpt *sd, SculptStroke *stroke)
{
sculpt_stroke_create_final(stroke);
if(stroke) {
sculpt_stroke_apply_generic(sd, stroke, 0);
}
}
/* XXX: drawing goes elsewhere */
void sculpt_stroke_draw(SculptStroke *stroke)
{
if(stroke) {
StrokePoint *p;
/* Draws the original stroke */
/*glColor3f(1, 0, 0);
glBegin(GL_LINE_STRIP);
for(i = 0; i <= stroke->index; ++i)
glVertex2s(stroke->loc[i][0], stroke->loc[i][1]);
glEnd();*/
/* Draws the smoothed stroke */
glColor3f(0, 1, 0);
glBegin(GL_LINE_STRIP);
for(p = stroke->final.first; p; p = p->next)
glVertex2s(p->x, p->y);
glEnd();
}
}