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|
/**
* $Id$
*
* ***** BEGIN GPL/BL DUAL 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. The Blender
* Foundation also sells licenses for use in proprietary software under
* the Blender License. See http://www.blender.org/BL/ for information
* about this.
*
* 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) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* Contributor(s): Full recode, Ton Roosendaal, Crete 2005
*
* ***** END GPL/BL DUAL LICENSE BLOCK *****
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <math.h>
#include <stdlib.h> /* for NULL */
#include "MEM_guardedalloc.h"
#include "DNA_action_types.h"
#include "DNA_armature_types.h"
#include "DNA_constraint_types.h"
#include "DNA_curve_types.h"
#include "DNA_ipo_types.h"
#include "DNA_nla_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "BKE_action.h"
#include "BKE_anim.h"
#include "BKE_armature.h"
#include "BKE_blender.h"
#include "BKE_constraint.h"
#include "BKE_global.h"
#include "BKE_ipo.h"
#include "BKE_library.h"
#include "BKE_main.h"
#include "BKE_object.h"
#include "BKE_utildefines.h"
#include "BLI_arithb.h"
#include "BLI_blenlib.h"
#include "nla.h"
/* *********************** NOTE ON POSE AND ACTION **********************
- Pose is the local (object level) component of armature. The current
object pose is saved in files, and (will be) is presorted for dependency
- Actions have fewer (or other) channels, and write data to a Pose
- Currently ob->pose data is controlled in where_is_pose only. The (recalc)
event system takes care of calling that
- The NLA system (here too) uses Poses as interpolation format for Actions
- Therefore we assume poses to be static, and duplicates of poses have channels in
same order, for quick interpolation reasons
****************************** (ton) ************************************ */
/* ***************** Library data level operations on action ************** */
void make_local_action(bAction *act)
{
Object *ob;
bAction *actn;
int local=0, lib=0;
if(act->id.lib==0) return;
if(act->id.us==1) {
act->id.lib= 0;
act->id.flag= LIB_LOCAL;
new_id(0, (ID *)act, 0);
return;
}
ob= G.main->object.first;
while(ob) {
if(ob->action==act) {
if(ob->id.lib) lib= 1;
else local= 1;
}
ob= ob->id.next;
}
if(local && lib==0) {
act->id.lib= 0;
act->id.flag= LIB_LOCAL;
new_id(0, (ID *)act, 0);
}
else if(local && lib) {
actn= copy_action(act);
actn->id.us= 0;
ob= G.main->object.first;
while(ob) {
if(ob->action==act) {
if(ob->id.lib==0) {
ob->action = actn;
ob->activecon = NULL;
actn->id.us++;
act->id.us--;
}
}
ob= ob->id.next;
}
}
}
void free_action(bAction *act)
{
bActionChannel *chan;
/* Free channels */
for (chan=act->chanbase.first; chan; chan=chan->next){
if (chan->ipo)
chan->ipo->id.us--;
free_constraint_channels(&chan->constraintChannels);
}
if (act->chanbase.first)
BLI_freelistN (&act->chanbase);
}
bAction* copy_action(bAction *src)
{
bAction *dst = NULL;
bActionChannel *dchan, *schan;
if(!src) return NULL;
dst= copy_libblock(src);
duplicatelist(&(dst->chanbase), &(src->chanbase));
for (dchan=dst->chanbase.first, schan=src->chanbase.first; dchan; dchan=dchan->next, schan=schan->next){
dchan->ipo = copy_ipo(dchan->ipo);
copy_constraint_channels(&dchan->constraintChannels, &schan->constraintChannels);
}
dst->id.flag |= LIB_FAKEUSER;
dst->id.us++;
return dst;
}
/* ************************ Pose channels *************** */
bPoseChannel *get_pose_channel(const bPose *pose, const char *name)
{
bPoseChannel *chan;
if(pose==NULL) return NULL;
for (chan=pose->chanbase.first; chan; chan=chan->next){
if (!strcmp (chan->name, name))
return chan;
}
return NULL;
}
/* Use with care, not on Armature poses but for temporal ones */
/* (currently used for action constraints and in rebuild_pose) */
bPoseChannel *verify_pose_channel(bPose* pose, const char* name)
{
bPoseChannel *chan;
if (!pose){
return NULL;
}
/* See if this channel exists */
for (chan=pose->chanbase.first; chan; chan=chan->next){
if (!strcmp (name, chan->name))
return chan;
}
/* If not, create it and add it */
chan = MEM_callocN(sizeof(bPoseChannel), "verifyPoseChannel");
strcpy (chan->name, name);
/* init vars to prevent mat errors */
chan->quat[0] = 1.0F;
chan->size[0] = chan->size[1] = chan->size[2] = 1.0F;
Mat3One(chan->ik_mat);
BLI_addtail (&pose->chanbase, chan);
return chan;
}
/* dst should be freed already, makes entire duplicate */
void copy_pose(bPose **dst, bPose *src, int copycon)
{
bPose *outPose;
bPoseChannel *pchan;
ListBase listb;
if (!src){
*dst=NULL;
return;
}
outPose= MEM_callocN(sizeof(bPose), "pose");
duplicatelist (&outPose->chanbase, &src->chanbase);
if (copycon) {
for (pchan=outPose->chanbase.first; pchan; pchan=pchan->next) {
copy_constraints(&listb, &pchan->constraints); // copy_constraints NULLs listb
pchan->constraints= listb;
}
}
*dst=outPose;
}
void free_pose_channels(bPose *pose)
{
bPoseChannel *chan;
if (pose->chanbase.first){
for (chan = pose->chanbase.first; chan; chan=chan->next){
free_constraints(&chan->constraints);
}
BLI_freelistN (&pose->chanbase);
}
}
static void copy_pose_channel_data(bPoseChannel *pchan, const bPoseChannel *chan)
{
VECCOPY(pchan->loc, chan->loc);
VECCOPY(pchan->size, chan->size);
QUATCOPY(pchan->quat, chan->quat);
pchan->flag= chan->flag;
}
/* checks for IK constraint, can do more constraints flags later */
/* pose should be entirely OK */
void update_pose_constraint_flags(bPose *pose)
{
bPoseChannel *pchan;
bConstraint *con;
/* clear */
for (pchan = pose->chanbase.first; pchan; pchan=pchan->next) {
pchan->constflag= 0;
}
/* detect */
for (pchan = pose->chanbase.first; pchan; pchan=pchan->next) {
for(con= pchan->constraints.first; con; con= con->next) {
if(con->type==CONSTRAINT_TYPE_KINEMATIC) {
pchan->constflag |= PCHAN_HAS_IK;
}
else pchan->constflag |= PCHAN_HAS_CONST;
}
}
}
/* ************************ END Pose channels *************** */
bActionChannel *get_named_actionchannel(bAction *act, const char *name)
{
bActionChannel *chan;
if (!act)
return NULL;
for (chan = act->chanbase.first; chan; chan=chan->next){
if (!strcmp (chan->name, name))
return chan;
}
return NULL;
}
/* ************************ Blending with NLA *************** */
/* Only allowed for Poses with identical channels */
void blend_poses(bPose *dst, const bPose *src, float srcweight, short mode)
{
bPoseChannel *dchan;
const bPoseChannel *schan;
float dquat[4], squat[4];
float dstweight;
int i;
switch (mode){
case POSE_BLEND:
dstweight = 1.0F - srcweight;
break;
case POSE_ADD:
dstweight = 1.0F;
break;
default :
dstweight = 1.0F;
}
schan= src->chanbase.first;
for (dchan = dst->chanbase.first; dchan; dchan=dchan->next, schan= schan->next){
if (schan->flag & (POSE_ROT|POSE_LOC|POSE_SIZE)) {
/* replaced quat->matrix->quat conversion with decent quaternion interpol (ton) */
/* Do the transformation blend */
if (schan->flag & POSE_ROT) {
QUATCOPY(dquat, dchan->quat);
QUATCOPY(squat, schan->quat);
if(mode==POSE_BLEND)
QuatInterpol(dchan->quat, dquat, squat, srcweight);
else
QuatAdd(dchan->quat, dquat, squat, srcweight);
NormalQuat (dchan->quat);
}
for (i=0; i<3; i++){
if (schan->flag & POSE_LOC)
dchan->loc[i] = (dchan->loc[i]*dstweight) + (schan->loc[i]*srcweight);
if (schan->flag & POSE_SIZE)
dchan->size[i] = 1.0f + ((dchan->size[i]-1.0f)*dstweight) + ((schan->size[i]-1.0f)*srcweight);
}
dchan->flag |= schan->flag;
}
}
}
float calc_action_start(const bAction *act)
{
const bActionChannel *chan;
const IpoCurve *icu;
float size=999999999.0f;
int i;
int foundvert=0;
const bConstraintChannel *conchan;
if (!act)
return 0;
for (chan=act->chanbase.first; chan; chan=chan->next){
for (icu=chan->ipo->curve.first; icu; icu=icu->next)
for (i=0; i<icu->totvert; i++){
size = MIN2 (size, icu->bezt[i].vec[1][0]);
foundvert=1;
}
for (conchan=chan->constraintChannels.first; conchan; conchan=conchan->next){
for (icu=conchan->ipo->curve.first; icu; icu=icu->next)
for (i=0; i<icu->totvert; i++){
size = MIN2 (size, icu->bezt[i].vec[1][0]);
foundvert=1;
}
}
}
if (!foundvert)
return 0;
else
return size;
}
float calc_action_end(const bAction *act)
{
const bActionChannel *chan;
const bConstraintChannel *conchan;
const IpoCurve *icu;
float size=0;
int i;
if (!act)
return 0;
for (chan=act->chanbase.first; chan; chan=chan->next){
for (icu=chan->ipo->curve.first; icu; icu=icu->next)
for (i=0; i<icu->totvert; i++)
size = MAX2 (size, icu->bezt[i].vec[1][0]);
for (conchan=chan->constraintChannels.first; conchan; conchan=conchan->next){
for (icu=conchan->ipo->curve.first; icu; icu=icu->next)
for (i=0; i<icu->totvert; i++)
size = MAX2 (size, icu->bezt[i].vec[1][0]);
}
}
return size;
}
/* Copy the data from the action-pose (src) into the pose */
/* both args are assumed to be valid */
/* exported to game engine */
void extract_pose_from_pose(bPose *pose, const bPose *src)
{
const bPoseChannel *schan;
bPoseChannel *pchan= pose->chanbase.first;
for (schan=src->chanbase.first; schan; schan=schan->next, pchan= pchan->next) {
copy_pose_channel_data(pchan, schan);
}
}
/* seems to be disabled... (ton) */
#ifdef __NLA_BLENDCON
static void blend_constraints(ListBase *dst, const ListBase *src,
float srcweight, short mode)
{
bConstraint *dcon;
const bConstraint *scon;
float dstweight = 0;
switch (mode){
case POSE_BLEND:
dstweight = 1.0F - srcweight;
break;
case POSE_ADD:
dstweight = 1.0F;
break;
}
/* Blend constraints */
for (dcon=dst->first; dcon; dcon=dcon->next){
for (scon = src->first; scon; scon=scon->next){
if (!strcmp(scon->name, dcon->name))
break;
}
if (scon){
dcon->enforce = (dcon->enforce*dstweight) + (scon->enforce*srcweight);
if (mode == POSE_BLEND)
dcon->enforce/=2.0;
if (dcon->enforce>1.0)
dcon->enforce=1.0;
if (dcon->enforce<0.0)
dcon->enforce=0.0;
}
}
}
#endif
/* seems to be disabled... (ton) */
#ifdef __NLA_BLENDCON
static void get_constraint_influence_from_pose(bPose *dst, bPose *src)
{
bConstraint *dcon, *scon;
if (!src || !dst)
return;
for (dcon = dst->chanbase.first; dcon; dcon=dcon->next){
for (scon=src->chanbase.first; scon; scon=scon->next){
if (!strcmp(scon->name, dcon->name))
break;
}
if (scon){
dcon->enforce = scon->enforce;
}
}
}
#endif
/* Pose should exist, can have any number of channels too (used for constraint) */
void extract_pose_from_action(bPose *pose, bAction *act, float ctime)
{
bActionChannel *achan;
bPoseChannel *pchan;
Ipo *ipo;
if (!act)
return;
if (!pose)
return;
/* Copy the data from the action into the pose */
for (achan=act->chanbase.first; achan; achan=achan->next){
act->achan= achan; // for ipos
ipo = achan->ipo;
if (ipo) {
pchan= get_pose_channel(pose, achan->name);
if(pchan) {
act->pchan= pchan; // for ipos
/* Evaluates and sets the internal ipo value */
calc_ipo(ipo, ctime);
/* This call also sets the pchan flags */
execute_ipo((ID*)act, achan->ipo);
}
}
}
}
/* for do_all_actions, clears the pose */
static void rest_pose(bPose *pose, int clearflag)
{
bPoseChannel *chan;
int i;
if (!pose)
return;
for (chan=pose->chanbase.first; chan; chan=chan->next){
for (i=0; i<3; i++){
chan->loc[i]=0.0;
chan->quat[i+1]=0.0;
chan->size[i]=1.0;
}
chan->quat[0]=1.0;
if (clearflag)
chan->flag =0;
}
}
/* do constraint channels = execute the ipos */
static void do_pose_constraint_channels(bPose *pose, bAction *act, float ctime)
{
bPoseChannel *pchan;
bActionChannel *achan;
if (!pose || !act)
return;
for (pchan=pose->chanbase.first; pchan; pchan=pchan->next){
achan=get_named_actionchannel(act, pchan->name);
if (achan)
do_constraint_channels(&pchan->constraints, &achan->constraintChannels, ctime);
}
}
void do_all_actions(Object *only_this)
{
Base *base;
bPose *apose=NULL;
bPose *tpose=NULL;
Object *ob;
bActionStrip *strip;
int doit;
float striptime, frametime, length, actlength;
float blendfac, stripframe;
int set;
//printf("do all actions disabled\n");
//return;
/* NEW: current scene ob ipo's */
base= G.scene->base.first;
set= 0;
while(base) {
if(only_this) ob= only_this;
else ob = base->object;
/* Retrieve data from the NLA */
if(ob->type==OB_ARMATURE && ob->pose) {
bArmature *arm= ob->data;
if(arm->flag & ARM_NO_ACTION) { // no action set while transform
;
}
else {
doit=0;
/* Clear pose */
if (apose){
free_pose_channels(apose);
MEM_freeN(apose);
}
/* Clear pose */
if (tpose){
free_pose_channels(tpose);
MEM_freeN(tpose);
}
copy_pose(&apose, ob->pose, 1);
copy_pose(&tpose, ob->pose, 1);
rest_pose(apose, 1);
if (ob->nlastrips.first){
rest_pose(ob->pose, 0);
}
for (strip=ob->nlastrips.first; strip; strip=strip->next){
doit = 0;
if (strip->act){
/* Determine if the current frame is within the strip's range */
length = strip->end-strip->start;
actlength = strip->actend-strip->actstart;
striptime = (G.scene->r.cfra-(strip->start)) / length;
stripframe = (G.scene->r.cfra-(strip->start)) ;
if (striptime>=0.0){
rest_pose(tpose, 1);
/* Handle path */
if (strip->flag & ACTSTRIP_USESTRIDE){
if (ob->parent && ob->parent->type==OB_CURVE){
Curve *cu = ob->parent->data;
float ctime, pdist;
if (cu->flag & CU_PATH){
/* Ensure we have a valid path */
if(cu->path==NULL || cu->path->data==NULL) printf("action path error\n");
else {
/* Find the position on the path */
ctime= bsystem_time(ob, ob->parent, (float)G.scene->r.cfra, 0.0);
if(calc_ipo_spec(cu->ipo, CU_SPEED, &ctime)==0) {
ctime /= cu->pathlen;
CLAMP(ctime, 0.0, 1.0);
}
pdist = ctime*cu->path->totdist;
if (strip->stridelen)
striptime = pdist / strip->stridelen;
else
striptime = 0;
striptime = (float)fmod (striptime, 1.0);
frametime = (striptime * actlength) + strip->actstart;
extract_pose_from_action (tpose, strip->act, bsystem_time(ob, 0, frametime, 0.0));
#ifdef __NLA_BLENDCON
do_pose_constraint_channels(tpose, strip->act, bsystem_time(ob, 0, frametime, 0.0));
#endif
doit=1;
}
}
}
}
/* Handle repeat */
else if (striptime < 1.0){
/* Mod to repeat */
striptime*=strip->repeat;
striptime = (float)fmod (striptime, 1.0);
frametime = (striptime * actlength) + strip->actstart;
extract_pose_from_action (tpose, strip->act, bsystem_time(ob, 0, frametime, 0.0));
#ifdef __NLA_BLENDCON
do_pose_constraint_channels(tpose, strip->act, bsystem_time(ob, 0, frametime, 0.0));
#endif
doit=1;
}
/* Handle extend */
else{
if (strip->flag & ACTSTRIP_HOLDLASTFRAME){
striptime = 1.0;
frametime = (striptime * actlength) + strip->actstart;
extract_pose_from_action (tpose, strip->act, bsystem_time(ob, 0, frametime, 0.0));
#ifdef __NLA_BLENDCON
do_pose_constraint_channels(tpose, strip->act, bsystem_time(ob, 0, frametime, 0.0));
#endif
doit=1;
}
}
/* Handle blendin & blendout */
if (doit){
/* Handle blendin */
if (strip->blendin>0.0 && stripframe<=strip->blendin && G.scene->r.cfra>=strip->start){
blendfac = stripframe/strip->blendin;
}
else if (strip->blendout>0.0 && stripframe>=(length-strip->blendout) && G.scene->r.cfra<=strip->end){
blendfac = (length-stripframe)/(strip->blendout);
}
else
blendfac = 1;
/* Blend this pose with the accumulated pose */
blend_poses (apose, tpose, blendfac, strip->mode);
#ifdef __NLA_BLENDCON
blend_constraints(&apose->chanbase, &tpose->chanbase, blendfac, strip->mode);
#endif
}
}
if (apose){
extract_pose_from_pose(ob->pose, apose);
#ifdef __NLA_BLENDCON
get_constraint_influence_from_pose(ob->pose, apose);
#endif
}
}
}
/* Do local action (always overrides the nla actions) */
/* At the moment, only constraint ipos on the local action have any effect */
if(ob->action) {
extract_pose_from_action (ob->pose, ob->action, bsystem_time(ob, 0, (float) G.scene->r.cfra, 0.0));
do_pose_constraint_channels(ob->pose, ob->action, bsystem_time(ob, 0, (float) G.scene->r.cfra, 0.0));
doit = 1;
}
}
}
if(only_this) break;
base= base->next;
if(base==0 && set==0 && G.scene->set) {
set= 1;
base= G.scene->set->base.first;
}
}
if (apose){
free_pose_channels(apose);
MEM_freeN(apose);
apose = NULL;
}
if (tpose){
free_pose_channels(tpose);
MEM_freeN(tpose);
apose = NULL;
}
}
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