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/*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2018, Blender Foundation
* This is a new part of Blender
*/
/** \file
* \ingroup modifiers
*/
#include <stdio.h>
#include <string.h>
#include "BLI_utildefines.h"
#include "DNA_meshdata_types.h"
#include "DNA_scene_types.h"
#include "DNA_object_types.h"
#include "DNA_gpencil_types.h"
#include "DNA_gpencil_modifier_types.h"
#include "BKE_colortools.h"
#include "BKE_deform.h"
#include "BKE_gpencil.h"
#include "BKE_gpencil_modifier.h"
#include "DEG_depsgraph.h"
#include "MOD_gpencil_util.h"
#include "MOD_gpencil_modifiertypes.h"
static void initData(GpencilModifierData *md)
{
TimeGpencilModifierData *gpmd = (TimeGpencilModifierData *)md;
gpmd->layername[0] = '\0';
gpmd->offset = 1;
gpmd->frame_scale = 1.0f;
gpmd->flag |= GP_TIME_KEEP_LOOP;
gpmd->sfra = 1;
gpmd->efra = 250;
}
static void copyData(const GpencilModifierData *md, GpencilModifierData *target)
{
BKE_gpencil_modifier_copyData_generic(md, target);
}
static int remapTime(struct GpencilModifierData *md,
struct Depsgraph *UNUSED(depsgraph),
struct Scene *scene,
struct Object *UNUSED(ob),
struct bGPDlayer *gpl,
int cfra)
{
TimeGpencilModifierData *mmd = (TimeGpencilModifierData *)md;
const bool custom = mmd->flag & GP_TIME_CUSTOM_RANGE;
const bool invgpl = mmd->flag & GP_TIME_INVERT_LAYER;
const bool invpass = mmd->flag & GP_TIME_INVERT_LAYERPASS;
int sfra = custom ? mmd->sfra : scene->r.sfra;
int efra = custom ? mmd->efra : scene->r.efra;
CLAMP_MIN(sfra, 0);
CLAMP_MIN(efra, 0);
/* Avoid inverse ranges. */
if (efra < sfra) {
return cfra;
}
const int time_range = efra - sfra + 1;
int offset = mmd->offset;
int segments = 0;
/* omit if filter by layer */
if (mmd->layername[0] != '\0') {
if (invgpl == false) {
if (!STREQ(mmd->layername, gpl->info)) {
return cfra;
}
}
else {
if (STREQ(mmd->layername, gpl->info)) {
return cfra;
}
}
}
/* verify pass */
if (mmd->layer_pass > 0) {
if (invpass == false) {
if (gpl->pass_index != mmd->layer_pass) {
return cfra;
}
}
else {
if (gpl->pass_index == mmd->layer_pass) {
return cfra;
}
}
}
/* if fix mode, return predefined frame number */
if (mmd->mode == GP_TIME_MODE_FIX) {
return offset;
}
/* invert current frame number */
if (mmd->mode == GP_TIME_MODE_REVERSE) {
cfra = efra - cfra + sfra;
}
/* apply frame scale */
cfra *= mmd->frame_scale;
/* verify offset never is greater than frame range */
if (abs(offset) > time_range) {
offset = offset - ((offset / time_range) * time_range);
}
/* verify not outside range if loop is disabled */
if ((mmd->flag & GP_TIME_KEEP_LOOP) == 0) {
if (cfra + offset < sfra) {
return sfra;
}
if (cfra + offset > efra) {
return efra;
}
}
/* check frames before start */
if (cfra < sfra) {
segments = ((cfra + sfra) / time_range);
cfra = cfra + (segments * time_range);
}
/* check frames after end */
if (cfra > efra) {
segments = ((cfra - sfra) / time_range);
cfra = cfra - (segments * time_range);
}
if (mmd->flag & GP_TIME_KEEP_LOOP) {
const int nfra = cfra + offset;
/* if the sum of the cfra is out scene frame range, recalc */
if (cfra + offset < sfra) {
const int delta = abs(sfra - nfra);
return efra - delta + 1;
}
else if (cfra + offset > efra) {
return nfra - efra + sfra - 1;
}
}
return cfra + offset;
}
GpencilModifierTypeInfo modifierType_Gpencil_Time = {
/* name */ "Time Offset",
/* structName */ "TimeGpencilModifierData",
/* structSize */ sizeof(TimeGpencilModifierData),
/* type */ eGpencilModifierTypeType_Gpencil,
/* flags */ eGpencilModifierTypeFlag_NoApply,
/* copyData */ copyData,
/* deformStroke */ NULL,
/* generateStrokes */ NULL,
/* bakeModifier */ NULL,
/* remapTime */ remapTime,
/* initData */ initData,
/* freeData */ NULL,
/* isDisabled */ NULL,
/* updateDepsgraph */ NULL,
/* dependsOnTime */ NULL,
/* foreachObjectLink */ NULL,
/* foreachIDLink */ NULL,
/* foreachTexLink */ NULL,
};
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