1 files changed, 123 insertions, 0 deletions
diff --git a/source/blender/gpencil_modifiers/intern/MOD_gpencilsimplify.c b/source/blender/gpencil_modifiers/intern/MOD_gpencilsimplify.c
new file mode 100644
index 00000000000..f0400e39b73
--- /dev/null
+++ b/source/blender/gpencil_modifiers/intern/MOD_gpencilsimplify.c
@@ -0,0 +1,123 @@
+/* ***** BEGIN GPL 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.
+ *
+ * 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) 2017, Blender Foundation
+ * This is a new part of Blender
+ *
+ * Contributor(s): Antonio Vazquez
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ *
+ */
+
+/** \file blender/modifiers/intern/MOD_gpencilsimplify.c
+ *  \ingroup modifiers
+ */
+
+#include <stdio.h>
+
+#include "DNA_scene_types.h"
+#include "DNA_object_types.h"
+#include "DNA_gpencil_types.h"
+#include "DNA_gpencil_modifier_types.h"
+#include "DNA_vec_types.h"
+
+#include "BLI_utildefines.h"
+
+#include "BKE_context.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)
+{
+	SimplifyGpencilModifierData *gpmd = (SimplifyGpencilModifierData *)md;
+	gpmd->pass_index = 0;
+	gpmd->step = 1;
+	gpmd->factor = 0.0f;
+	gpmd->layername[0] = '\0';
+}
+
+static void copyData(const GpencilModifierData *md, GpencilModifierData *target)
+{
+	BKE_gpencil_modifier_copyData_generic(md, target);
+}
+
+static void deformStroke(
+        GpencilModifierData *md, Depsgraph *UNUSED(depsgraph),
+        Object *ob, bGPDlayer *gpl, bGPDstroke *gps)
+{
+	SimplifyGpencilModifierData *mmd = (SimplifyGpencilModifierData *)md;
+
+	if (!is_stroke_affected_by_modifier(ob,
+	        mmd->layername, mmd->pass_index, 4, gpl, gps,
+	        mmd->flag & GP_SIMPLIFY_INVERT_LAYER, mmd->flag & GP_SIMPLIFY_INVERT_PASS))
+	{
+		return;
+	}
+
+	if (mmd->mode == GP_SIMPLIFY_FIXED) {
+		for (int i = 0; i < mmd->step; i++) {
+			BKE_gpencil_simplify_fixed(gps);
+		}
+	}
+	else {
+		/* simplify stroke using Ramer-Douglas-Peucker algorithm */
+		BKE_gpencil_simplify_stroke(gps, mmd->factor);
+	}
+}
+
+static void bakeModifier(
+		struct Main *UNUSED(bmain), Depsgraph *depsgraph,
+        GpencilModifierData *md, Object *ob)
+{
+	bGPdata *gpd = ob->data;
+
+	for (bGPDlayer *gpl = gpd->layers.first; gpl; gpl = gpl->next) {
+		for (bGPDframe *gpf = gpl->frames.first; gpf; gpf = gpf->next) {
+			for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
+				deformStroke(md, depsgraph, ob, gpl, gps);
+			}
+		}
+	}
+}
+
+GpencilModifierTypeInfo modifierType_Gpencil_Simplify = {
+	/* name */              "Simplify",
+	/* structName */        "SimplifyGpencilModifierData",
+	/* structSize */        sizeof(SimplifyGpencilModifierData),
+	/* type */              eGpencilModifierTypeType_Gpencil,
+	/* flags */             eGpencilModifierTypeFlag_SupportsEditmode,
+
+	/* copyData */          copyData,
+
+	/* deformStroke */      deformStroke,
+	/* generateStrokes */   NULL,
+	/* bakeModifier */    bakeModifier,
+
+	/* initData */          initData,
+	/* freeData */          NULL,
+	/* isDisabled */        NULL,
+	/* updateDepsgraph */   NULL,
+	/* dependsOnTime */     NULL,
+	/* foreachObjectLink */ NULL,
+	/* foreachIDLink */     NULL,
+	/* foreachTexLink */    NULL,
+};