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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
/** \file
* \ingroup bke
*/
#include "MEM_guardedalloc.h"
#include "DNA_action_types.h"
#include "DNA_anim_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "BLT_translation.h"
#include "BKE_anim_visualization.h"
#include "BKE_report.h"
#include "GPU_batch.h"
#include "BLO_read_write.h"
/* ******************************************************************** */
/* Animation Visualization */
void animviz_settings_init(bAnimVizSettings *avs)
{
/* sanity check */
if (avs == NULL) {
return;
}
/* path settings */
avs->path_bc = avs->path_ac = 10;
avs->path_sf = 1; /* XXX: Take from scene instead? */
avs->path_ef = 250; /* XXX: Take from scene instead? */
avs->path_viewflag = (MOTIONPATH_VIEW_KFRAS | MOTIONPATH_VIEW_KFNOS);
avs->path_step = 1;
avs->path_bakeflag |= MOTIONPATH_BAKE_HEADS;
}
/* ------------------- */
void animviz_free_motionpath_cache(bMotionPath *mpath)
{
/* sanity check */
if (mpath == NULL) {
return;
}
/* free the path if necessary */
if (mpath->points) {
MEM_freeN(mpath->points);
}
GPU_VERTBUF_DISCARD_SAFE(mpath->points_vbo);
GPU_BATCH_DISCARD_SAFE(mpath->batch_line);
GPU_BATCH_DISCARD_SAFE(mpath->batch_points);
/* reset the relevant parameters */
mpath->points = NULL;
mpath->length = 0;
}
void animviz_free_motionpath(bMotionPath *mpath)
{
/* sanity check */
if (mpath == NULL) {
return;
}
/* free the cache first */
animviz_free_motionpath_cache(mpath);
/* now the instance itself */
MEM_freeN(mpath);
}
/* ------------------- */
bMotionPath *animviz_copy_motionpath(const bMotionPath *mpath_src)
{
bMotionPath *mpath_dst;
if (mpath_src == NULL) {
return NULL;
}
mpath_dst = MEM_dupallocN(mpath_src);
mpath_dst->points = MEM_dupallocN(mpath_src->points);
/* should get recreated on draw... */
mpath_dst->points_vbo = NULL;
mpath_dst->batch_line = NULL;
mpath_dst->batch_points = NULL;
return mpath_dst;
}
/* ------------------- */
bMotionPath *animviz_verify_motionpaths(ReportList *reports,
Scene *scene,
Object *ob,
bPoseChannel *pchan)
{
bAnimVizSettings *avs;
bMotionPath *mpath, **dst;
/* sanity checks */
if (ELEM(NULL, scene, ob)) {
return NULL;
}
/* get destination data */
if (pchan) {
/* paths for posechannel - assume that posechannel belongs to the object */
avs = &ob->pose->avs;
dst = &pchan->mpath;
}
else {
/* paths for object */
avs = &ob->avs;
dst = &ob->mpath;
}
/* avoid 0 size allocs */
if (avs->path_sf >= avs->path_ef) {
BKE_reportf(reports,
RPT_ERROR,
"Motion path frame extents invalid for %s (%d to %d)%s",
(pchan) ? pchan->name : ob->id.name,
avs->path_sf,
avs->path_ef,
(avs->path_sf == avs->path_ef) ? TIP_(", cannot have single-frame paths") : "");
return NULL;
}
/* if there is already a motionpath, just return that,
* provided its settings are ok (saves extra free+alloc)
*/
if (*dst != NULL) {
int expected_length = avs->path_ef - avs->path_sf;
mpath = *dst;
/* Path is "valid" if length is valid,
* but must also be of the same length as is being requested. */
if ((mpath->start_frame != mpath->end_frame) && (mpath->length > 0)) {
/* outer check ensures that we have some curve data for this path */
if (mpath->length == expected_length) {
/* return/use this as it is already valid length */
return mpath;
}
/* clear the existing path (as the range has changed), and reallocate below */
animviz_free_motionpath_cache(mpath);
}
}
else {
/* create a new motionpath, and assign it */
mpath = MEM_callocN(sizeof(bMotionPath), "bMotionPath");
*dst = mpath;
}
/* set settings from the viz settings */
mpath->start_frame = avs->path_sf;
mpath->end_frame = avs->path_ef;
mpath->length = mpath->end_frame - mpath->start_frame;
if (avs->path_bakeflag & MOTIONPATH_BAKE_HEADS) {
mpath->flag |= MOTIONPATH_FLAG_BHEAD;
}
else {
mpath->flag &= ~MOTIONPATH_FLAG_BHEAD;
}
/* set default custom values */
mpath->color[0] = 1.0; /* Red */
mpath->color[1] = 0.0;
mpath->color[2] = 0.0;
mpath->line_thickness = 2;
mpath->flag |= MOTIONPATH_FLAG_LINES; /* draw lines by default */
/* allocate a cache */
mpath->points = MEM_callocN(sizeof(bMotionPathVert) * mpath->length, "bMotionPathVerts");
/* tag viz settings as currently having some path(s) which use it */
avs->path_bakeflag |= MOTIONPATH_BAKE_HAS_PATHS;
/* return it */
return mpath;
}
void animviz_motionpath_blend_write(BlendWriter *writer, bMotionPath *mpath)
{
/* sanity checks */
if (mpath == NULL) {
return;
}
/* firstly, just write the motionpath struct */
BLO_write_struct(writer, bMotionPath, mpath);
/* now write the array of data */
BLO_write_struct_array(writer, bMotionPathVert, mpath->length, mpath->points);
}
void animviz_motionpath_blend_read_data(BlendDataReader *reader, bMotionPath *mpath)
{
/* sanity check */
if (mpath == NULL) {
return;
}
/* relink points cache */
BLO_read_data_address(reader, &mpath->points);
mpath->points_vbo = NULL;
mpath->batch_line = NULL;
mpath->batch_points = NULL;
}
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