From 0845b1c8c8da818607fcff0a1bdb2114a0cb9729 Mon Sep 17 00:00:00 2001
From: Antonioya <blendergit@gmail.com>
Date: Thu, 30 Aug 2018 11:06:44 +0200
Subject: GP: Improve Subdivide and Simplify

Now the weights are managed in the operators.

The subdivide operator and modifier code have been replaced with a shared function.

Some cleanup also.
---
 .../gpencil_modifiers/intern/MOD_gpencilsubdiv.c   | 94 +++-------------------
 1 file changed, 10 insertions(+), 84 deletions(-)

(limited to 'source/blender/gpencil_modifiers')

diff --git a/source/blender/gpencil_modifiers/intern/MOD_gpencilsubdiv.c b/source/blender/gpencil_modifiers/intern/MOD_gpencilsubdiv.c
index dba3e028904..3ba53250abd 100644
--- a/source/blender/gpencil_modifiers/intern/MOD_gpencilsubdiv.c
+++ b/source/blender/gpencil_modifiers/intern/MOD_gpencilsubdiv.c
@@ -24,9 +24,9 @@
  *
  */
 
-/** \file blender/gpencil_modifiers/intern/MOD_gpencilsubdiv.c
- *  \ingroup modifiers
- */
+ /** \file blender/gpencil_modifiers/intern/MOD_gpencilsubdiv.c
+  *  \ingroup modifiers
+  */
 
 #include <stdio.h>
 
@@ -65,98 +65,24 @@ static void copyData(const GpencilModifierData *md, GpencilModifierData *target)
 
 /* subdivide stroke to get more control points */
 static void deformStroke(
-        GpencilModifierData *md, Depsgraph *UNUSED(depsgraph),
-        Object *ob, bGPDlayer *gpl, bGPDstroke *gps)
+	GpencilModifierData *md, Depsgraph *UNUSED(depsgraph),
+	Object *ob, bGPDlayer *gpl, bGPDstroke *gps)
 {
 	SubdivGpencilModifierData *mmd = (SubdivGpencilModifierData *)md;
-	bGPDspoint *temp_points;
-	int totnewpoints, oldtotpoints;
-	int i2;
 
 	if (!is_stroke_affected_by_modifier(ob,
-	        mmd->layername, mmd->pass_index, 3, gpl, gps,
-	        mmd->flag & GP_SUBDIV_INVERT_LAYER, mmd->flag & GP_SUBDIV_INVERT_PASS))
+		mmd->layername, mmd->pass_index, 3, gpl, gps,
+		mmd->flag & GP_SUBDIV_INVERT_LAYER, mmd->flag & GP_SUBDIV_INVERT_PASS))
 	{
 		return;
 	}
 
-	/* loop as many times as levels */
-	for (int s = 0; s < mmd->level; s++) {
-		totnewpoints = gps->totpoints - 1;
-		/* duplicate points in a temp area */
-		temp_points = MEM_dupallocN(gps->points);
-		oldtotpoints = gps->totpoints;
-
-		/* resize the points arrys */
-		gps->totpoints += totnewpoints;
-		gps->points = MEM_recallocN(gps->points, sizeof(*gps->points) * gps->totpoints);
-		gps->dvert = MEM_recallocN(gps->dvert, sizeof(*gps->dvert) * gps->totpoints);
-		gps->flag |= GP_STROKE_RECALC_CACHES;
-
-		/* move points from last to first to new place */
-		i2 = gps->totpoints - 1;
-		for (int i = oldtotpoints - 1; i > 0; i--) {
-			bGPDspoint *pt = &temp_points[i];
-			bGPDspoint *pt_final = &gps->points[i2];
-
-			MDeformVert *dvert = &gps->dvert[i];
-			MDeformVert *dvert_final = &gps->dvert[i2];
-
-			copy_v3_v3(&pt_final->x, &pt->x);
-			pt_final->pressure = pt->pressure;
-			pt_final->strength = pt->strength;
-			pt_final->time = pt->time;
-			pt_final->flag = pt->flag;
-
-			dvert_final->totweight = dvert->totweight;
-			dvert_final->dw = dvert->dw;
-			i2 -= 2;
-		}
-		/* interpolate mid points */
-		i2 = 1;
-		for (int i = 0; i < oldtotpoints - 1; i++) {
-			bGPDspoint *pt = &temp_points[i];
-			bGPDspoint *next = &temp_points[i + 1];
-			bGPDspoint *pt_final = &gps->points[i2];
-			MDeformVert *dvert_final = &gps->dvert[i2];
-
-			/* add a half way point */
-			interp_v3_v3v3(&pt_final->x, &pt->x, &next->x, 0.5f);
-			pt_final->pressure = interpf(pt->pressure, next->pressure, 0.5f);
-			pt_final->strength = interpf(pt->strength, next->strength, 0.5f);
-			CLAMP(pt_final->strength, GPENCIL_STRENGTH_MIN, 1.0f);
-			pt_final->time = interpf(pt->time, next->time, 0.5f);
-
-			dvert_final->totweight = 0;
-			dvert_final->dw = NULL;
-			i2 += 2;
-		}
-
-		MEM_SAFE_FREE(temp_points);
-
-		/* move points to smooth stroke (not simple flag )*/
-		if ((mmd->flag & GP_SUBDIV_SIMPLE) == 0) {
-			/* duplicate points in a temp area with the new subdivide data */
-			temp_points = MEM_dupallocN(gps->points);
-
-			/* extreme points are not changed */
-			for (int i = 0; i < gps->totpoints - 2; i++) {
-				bGPDspoint *pt = &temp_points[i];
-				bGPDspoint *next = &temp_points[i + 1];
-				bGPDspoint *pt_final = &gps->points[i + 1];
-
-				/* move point */
-				interp_v3_v3v3(&pt_final->x, &pt->x, &next->x, 0.5f);
-			}
-			/* free temp memory */
-			MEM_SAFE_FREE(temp_points);
-		}
-	}
+	BKE_gpencil_subdivide(gps, mmd->level, mmd->flag);
 }
 
 static void bakeModifier(
-        struct Main *UNUSED(bmain), Depsgraph *depsgraph,
-        GpencilModifierData *md, Object *ob)
+	struct Main *UNUSED(bmain), Depsgraph *depsgraph,
+	GpencilModifierData *md, Object *ob)
 {
 	bGPdata *gpd = ob->data;
 
-- 
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