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FCurve RNA API: add funcs to convert to samples/to keyframes.

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So far, we had an operator to 'bake' keyframe curves into samples, but no
way to make the fcurve editable again (i.e. to convert it back into a keyframes one).

Needed to fix mocap addon (see T43259).

Also, fixed a glitch in `fcurve_store_samples()`, since given end frame is included in range,
it is valid to give same start and end frame (in case you want a single point in samples,
not much practical cases, but...).
This commit is contained in:
Bastien Montagne 2015-01-16 16:12:03 +01:00
parent 913e2bae19
commit da8f16e288
4 changed files with 114 additions and 1 deletions
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2
source/blender/blenkernel/intern/fcurve.c
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@ -820,7 +820,7 @@ void fcurve_store_samples(FCurve *fcu, void *data, int start, int end, FcuSample
printf("Error: No F-Curve with F-Curve Modifiers to Bake\n");
return;
}
if (start >= end) {
if (start > end) {
printf("Error: Frame range for Sampled F-Curve creation is inappropriate\n");
return;
}

4
source/blender/makesrna/intern/rna_fcurve.c
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@ -1948,6 +1948,10 @@ static void rna_def_fcurve(BlenderRNA *brna)
parm = RNA_def_pointer(func, "data", "AnyType", "Data",
"Data containing the property controlled by given FCurve");
RNA_def_property_flag(parm, PROP_REQUIRED | PROP_RNAPTR | PROP_NEVER_NULL);
/* Functions */
RNA_api_fcurves(srna);
}
/* *********************** */

108
source/blender/makesrna/intern/rna_fcurve_api.c
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@ -39,6 +39,7 @@
#include "RNA_define.h"
#include "DNA_anim_types.h"
#include "DNA_scene_types.h"
#include "rna_internal.h" /* own include */
@ -49,8 +50,115 @@
#include "BKE_animsys.h"
#include "BKE_fcurve.h"
#include "BLI_math.h"
static void rna_FCurve_convert_to_samples(FCurve *fcu, ReportList *reports, int start, int end)
{
/* XXX fcurve_store_samples uses end frame included, which is not consistent with usual behavior in Blender,
* nor python slices, etc. Let have public py API be consistent here at least. */
end--;
if (start > end) {
BKE_reportf(reports, RPT_ERROR, "Invalid frame range (%d - %d)", start, end + 1);
}
else if (fcu->fpt) {
BKE_report(reports, RPT_WARNING, "FCurve has already sample points");
}
else if (!fcu->bezt) {
BKE_report(reports, RPT_WARNING, "FCurve has no keyframes");
}
else {
fcurve_store_samples(fcu, NULL, start, end, fcurve_samplingcb_evalcurve);
WM_main_add_notifier(NC_ANIMATION | ND_ANIMCHAN | NA_EDITED, NULL);
}
}
static void rna_FCurve_convert_to_keyframes(FCurve *fcu, ReportList *reports, int start, int end)
{
if (start >= end) {
BKE_reportf(reports, RPT_ERROR, "Invalid frame range (%d - %d)", start, end);
}
else if (fcu->bezt) {
BKE_report(reports, RPT_WARNING, "FCurve has already keyframes");
}
else if (!fcu->fpt) {
BKE_report(reports, RPT_WARNING, "FCurve has no sample points");
}
else {
BezTriple *bezt;
FPoint *fpt = fcu->fpt;
int tot_kf = end - start;
int tot_sp = fcu->totvert;
bezt = fcu->bezt = MEM_callocN(sizeof(*fcu->bezt) * (size_t)tot_kf, __func__);
fcu->totvert = tot_kf;
/* Get first sample point to 'copy' as keyframe. */
for (; tot_sp && (fpt->vec[0] < (float)start); fpt++, tot_sp--);
/* Add heading dummy flat points if needed. */
for (; tot_kf && (fpt->vec[0] > (float)start); start++, bezt++, tot_kf--) {
/* Linear interpolation, of course. */
bezt->f1 = bezt->f2 = bezt->f3 = SELECT;
bezt->ipo = BEZT_IPO_LIN;
bezt->h1 = bezt->h2 = HD_AUTO_ANIM;
bezt->vec[1][0] = (float)start;
bezt->vec[1][1] = fpt->vec[1];
}
/* Copy actual sample points. */
for (; tot_kf && tot_sp; start++, bezt++, tot_kf--, fpt++, tot_sp--) {
/* Linear interpolation, of course. */
bezt->f1 = bezt->f2 = bezt->f3 = SELECT;
bezt->ipo = BEZT_IPO_LIN;
bezt->h1 = bezt->h2 = HD_AUTO_ANIM;
copy_v2_v2(bezt->vec[1], fpt->vec);
}
/* Add leading dummy flat points if needed. */
for (fpt--; tot_kf; start++, bezt++, tot_kf--) {
/* Linear interpolation, of course. */
bezt->f1 = bezt->f2 = bezt->f3 = SELECT;
bezt->ipo = BEZT_IPO_LIN;
bezt->h1 = bezt->h2 = HD_AUTO_ANIM;
bezt->vec[1][0] = (float)start;
bezt->vec[1][1] = fpt->vec[1];
}
MEM_SAFE_FREE(fcu->fpt);
/* Not strictly needed since we use linear interpolation, but better be consistent here. */
calchandles_fcurve(fcu);
WM_main_add_notifier(NC_ANIMATION | ND_ANIMCHAN | NA_EDITED, NULL);
}
}
#else
void RNA_api_fcurves(StructRNA *srna)
{
FunctionRNA *func;
PropertyRNA *parm;
func = RNA_def_function(srna, "convert_to_samples", "rna_FCurve_convert_to_samples");
RNA_def_function_ui_description(func,
"Convert current FCurve from keyframes to sample points, if necessary");
RNA_def_function_flag(func, FUNC_USE_REPORTS);
parm = RNA_def_int(func, "start", 0, MINAFRAME, MAXFRAME, "Start Frame", "", MINAFRAME, MAXFRAME);
RNA_def_property_flag(parm, PROP_REQUIRED);
parm = RNA_def_int(func, "end", 0, MINAFRAME, MAXFRAME, "End Frame", "", MINAFRAME, MAXFRAME);
RNA_def_property_flag(parm, PROP_REQUIRED);
func = RNA_def_function(srna, "convert_to_keyframes", "rna_FCurve_convert_to_keyframes");
RNA_def_function_ui_description(func,
"Convert current FCurve from sample points to keyframes (linear interpolation), "
"if necessary");
RNA_def_function_flag(func, FUNC_USE_REPORTS);
parm = RNA_def_int(func, "start", 0, MINAFRAME, MAXFRAME, "Start Frame", "", MINAFRAME, MAXFRAME);
RNA_def_property_flag(parm, PROP_REQUIRED);
parm = RNA_def_int(func, "end", 0, MINAFRAME, MAXFRAME, "End Frame", "", MINAFRAME, MAXFRAME);
RNA_def_property_flag(parm, PROP_REQUIRED);
}
void RNA_api_drivers(StructRNA *UNUSED(srna))
{
/* FunctionRNA *func; */

1
source/blender/makesrna/intern/rna_internal.h
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@ -259,6 +259,7 @@ void RNA_api_armature_edit_bone(StructRNA *srna);
void RNA_api_bone(StructRNA *srna);
void RNA_api_camera(StructRNA *srna);
void RNA_api_curve(StructRNA *srna);
void RNA_api_fcurves(StructRNA *srna);
void RNA_api_drivers(StructRNA *srna);
void RNA_api_image(struct StructRNA *srna);
void RNA_api_lattice(struct StructRNA *srna);