From f7727b5366f74596ae21dcd878856e2c2ba1b99b Mon Sep 17 00:00:00 2001
From: Bastien Montagne <montagne29@wanadoo.fr>
Date: Tue, 8 May 2018 18:41:43 +0200
Subject: Modifier stack: Port Warp to new Mesh-based system.

---
 source/blender/modifiers/intern/MOD_warp.c | 63 ++++++++++++++----------------
 1 file changed, 29 insertions(+), 34 deletions(-)

(limited to 'source/blender/modifiers/intern/MOD_warp.c')

diff --git a/source/blender/modifiers/intern/MOD_warp.c b/source/blender/modifiers/intern/MOD_warp.c
index 07babc5b12f..34e69f570d5 100644
--- a/source/blender/modifiers/intern/MOD_warp.c
+++ b/source/blender/modifiers/intern/MOD_warp.c
@@ -29,14 +29,17 @@
 
 #include "MEM_guardedalloc.h"
 
-#include "DNA_object_types.h"
+#include "DNA_mesh_types.h"
 #include "DNA_meshdata_types.h"
+#include "DNA_object_types.h"
 
 #include "BLI_math.h"
 #include "BLI_utildefines.h"
 
-#include "BKE_cdderivedmesh.h"
+#include "BKE_editmesh.h"
+#include "BKE_library.h"
 #include "BKE_library_query.h"
+#include "BKE_mesh.h"
 #include "BKE_modifier.h"
 #include "BKE_deform.h"
 #include "BKE_texture.h"
@@ -146,7 +149,7 @@ static void updateDepsgraph(ModifierData *md, const ModifierUpdateDepsgraphConte
 }
 
 static void warpModifier_do(WarpModifierData *wmd, Object *ob,
-                            DerivedMesh *dm, float (*vertexCos)[3], int numVerts)
+                            Mesh *mesh, float (*vertexCos)[3], int numVerts)
 {
 	float obinv[4][4];
 	float mat_from[4][4];
@@ -169,7 +172,7 @@ static void warpModifier_do(WarpModifierData *wmd, Object *ob,
 	if (!(wmd->object_from && wmd->object_to))
 		return;
 
-	modifier_get_vgroup(ob, dm, wmd->defgrp_name, &dvert, &defgrp_index);
+	modifier_get_vgroup_mesh(ob, mesh, wmd->defgrp_name, &dvert, &defgrp_index);
 	if (dvert == NULL) {
 		defgrp_index = -1;
 	}
@@ -207,7 +210,7 @@ static void warpModifier_do(WarpModifierData *wmd, Object *ob,
 
 	if (wmd->texture) {
 		tex_co = MEM_malloc_arrayN(numVerts, sizeof(*tex_co), "warpModifier_do tex_co");
-		get_texture_coords((MappingInfoModifierData *)wmd, ob, dm, vertexCos, tex_co, numVerts);
+		get_texture_coords_mesh((MappingInfoModifierData *)wmd, ob, mesh, vertexCos, tex_co);
 
 		modifier_init_texture(wmd->modifier.scene, wmd->texture);
 	}
@@ -295,48 +298,40 @@ static void warpModifier_do(WarpModifierData *wmd, Object *ob,
 		}
 	}
 
-	if (tex_co)
+	if (tex_co) {
 		MEM_freeN(tex_co);
-
-}
-
-static int warp_needs_dm(WarpModifierData *wmd)
-{
-	return wmd->texture || wmd->defgrp_name[0];
+	}
 }
 
-static void deformVerts(ModifierData *md, const ModifierEvalContext *ctx, DerivedMesh *derivedData,
+static void deformVerts(ModifierData *md, const ModifierEvalContext *ctx, Mesh *mesh,
                         float (*vertexCos)[3], int numVerts)
 {
-	DerivedMesh *dm = NULL;
-	int use_dm = warp_needs_dm((WarpModifierData *)md);
+	Mesh *mesh_src = mesh;
 
-	if (use_dm) {
-		dm = get_cddm(ctx->object, NULL, derivedData, vertexCos, false);
+	if (mesh_src == NULL) {
+		mesh_src = ctx->object->data;
 	}
 
-	warpModifier_do((WarpModifierData *)md, ctx->object, dm, vertexCos, numVerts);
+	BLI_assert(mesh_src->totvert == numVerts);
 
-	if (use_dm) {
-		if (dm != derivedData) dm->release(dm);
-	}
+	warpModifier_do((WarpModifierData *)md, ctx->object, mesh_src, vertexCos, numVerts);
 }
 
 static void deformVertsEM(ModifierData *md, const ModifierEvalContext *ctx, struct BMEditMesh *em,
-                          DerivedMesh *derivedData, float (*vertexCos)[3], int numVerts)
+                          Mesh *mesh, float (*vertexCos)[3], int numVerts)
 {
-	DerivedMesh *dm = derivedData;
-	int use_dm = warp_needs_dm((WarpModifierData *)md);
+	Mesh *mesh_src = mesh;
 
-	if (use_dm) {
-		if (!derivedData)
-			dm = CDDM_from_editbmesh(em, false, false);
+	if (mesh_src == NULL) {
+		mesh_src = BKE_bmesh_to_mesh_nomain(em->bm, &(struct BMeshToMeshParams){0});
 	}
 
-	deformVerts(md, ctx, dm, vertexCos, numVerts);
+	BLI_assert(mesh_src->totvert == numVerts);
+
+	warpModifier_do((WarpModifierData *)md, ctx->object, mesh_src, vertexCos, numVerts);
 
-	if (use_dm) {
-		if (!derivedData) dm->release(dm);
+	if (!mesh) {
+		BKE_id_free(NULL, mesh_src);
 	}
 }
 
@@ -351,16 +346,16 @@ ModifierTypeInfo modifierType_Warp = {
 	                        eModifierTypeFlag_SupportsEditmode,
 	/* copyData */          copyData,
 
-	/* deformVerts_DM */    deformVerts,
+	/* deformVerts_DM */    NULL,
 	/* deformMatrices_DM */ NULL,
-	/* deformVertsEM_DM */  deformVertsEM,
+	/* deformVertsEM_DM */  NULL,
 	/* deformMatricesEM_DM*/NULL,
 	/* applyModifier_DM */  NULL,
 	/* applyModifierEM_DM */NULL,
 
-	/* deformVerts */       NULL,
+	/* deformVerts */       deformVerts,
 	/* deformMatrices */    NULL,
-	/* deformVertsEM */     NULL,
+	/* deformVertsEM */     deformVertsEM,
 	/* deformMatricesEM */  NULL,
 	/* applyModifier */     NULL,
 	/* applyModifierEM */   NULL,
-- 
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