Commit: da8f16e288d667e8b8c487b3192f962d71dec3aa
Author: Bastien Montagne
Date: Fri Jan 16 16:12:03 2015 +0100
Branches: master
https://developer.blender.org/rBda8f16e288d667e8b8c487b3192f962d71dec3aa
FCurve RNA API: add funcs to convert to samples/to keyframes.
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...).
===================================================================
M source/blender/blenkernel/intern/fcurve.c
M source/blender/makesrna/intern/rna_fcurve.c
M source/blender/makesrna/intern/rna_fcurve_api.c
M source/blender/makesrna/intern/rna_internal.h
===================================================================
diff --git a/source/blender/blenkernel/intern/fcurve.c
b/source/blender/blenkernel/intern/fcurve.c
index b50e563..4648d70 100644
--- a/source/blender/blenkernel/intern/fcurve.c
+++ b/source/blender/blenkernel/intern/fcurve.c
@@ -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;
}
diff --git a/source/blender/makesrna/intern/rna_fcurve.c
b/source/blender/makesrna/intern/rna_fcurve.c
index 3b90781..6c89325 100644
--- a/source/blender/makesrna/intern/rna_fcurve.c
+++ b/source/blender/makesrna/intern/rna_fcurve.c
@@ -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);
}
/* *********************** */
diff --git a/source/blender/makesrna/intern/rna_fcurve_api.c
b/source/blender/makesrna/intern/rna_fcurve_api.c
index ab96f6f..8551ca6 100644
--- a/source/blender/makesrna/intern/rna_fcurve_api.c
+++ b/source/blender/makesrna/intern/rna_fcurve_api.c
@@ -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; */
diff --git a/source/blender/makesrna/intern/rna_internal.h
b/source/blender/makesrna/intern/rna_internal.h
index 64a50d4..bd1d969 100644
--- a/source/blender/makesrna/intern/rna_internal.h
+++ b/source/blender/makesrna/intern/rna_internal.h
@@ -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);
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