Merge branch 'master' into blender2.8

1 files changed, 237 insertions, 0 deletions

diff --git a/source/gameengine/Converter/BL_ShapeDeformer.cpp b/source/gameengine/Converter/BL_ShapeDeformer.cpp
new file mode 100644
index 00000000000..ca32e49ef5d
--- /dev/null
+++ b/source/gameengine/Converter/BL_ShapeDeformer.cpp
@@ -0,0 +1,237 @@
+/*
+ * ***** 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) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file gameengine/Converter/BL_ShapeDeformer.cpp
+ *  \ingroup bgeconv
+ */
+
+#ifdef _MSC_VER
+#  pragma warning (disable:4786)
+#endif
+
+#include "MEM_guardedalloc.h"
+#include "BL_ShapeDeformer.h"
+#include "CTR_Map.h"
+#include "STR_HashedString.h"
+#include "RAS_IPolygonMaterial.h"
+#include "RAS_MeshObject.h"
+
+#include "DNA_anim_types.h"
+#include "DNA_armature_types.h"
+#include "DNA_action_types.h"
+#include "DNA_key_types.h"
+#include "DNA_mesh_types.h"
+#include "DNA_meshdata_types.h"
+#include "BKE_armature.h"
+#include "BKE_action.h"
+#include "BKE_global.h"
+#include "BKE_main.h"
+#include "BKE_key.h"
+#include "BKE_fcurve.h"
+#include "BKE_ipo.h"
+#include "BKE_library.h"
+#include "MT_Point3.h"
+
+extern "C"{
+	#include "BKE_lattice.h"
+	#include "BKE_animsys.h"
+}
+
+#include "BLI_blenlib.h"
+#include "BLI_math.h"
+
+#define __NLA_DEFNORMALS
+//#undef __NLA_DEFNORMALS
+
+BL_ShapeDeformer::BL_ShapeDeformer(BL_DeformableGameObject *gameobj,
+                                   Object *bmeshobj,
+                                   RAS_MeshObject *mesh)
+    :
+      BL_SkinDeformer(gameobj,bmeshobj, mesh),
+      m_useShapeDrivers(false),
+      m_lastShapeUpdate(-1)
+{
+	m_key = m_bmesh->key ? BKE_key_copy(G.main, m_bmesh->key) : NULL;
+};
+
+/* this second constructor is needed for making a mesh deformable on the fly. */
+BL_ShapeDeformer::BL_ShapeDeformer(BL_DeformableGameObject *gameobj,
+				Object *bmeshobj_old,
+				Object *bmeshobj_new,
+				RAS_MeshObject *mesh,
+				bool release_object,
+				bool recalc_normal,
+				BL_ArmatureObject* arma)
+				:
+					BL_SkinDeformer(gameobj, bmeshobj_old, bmeshobj_new, mesh, release_object, recalc_normal, arma),
+					m_useShapeDrivers(false),
+					m_lastShapeUpdate(-1)
+{
+	m_key = m_bmesh->key ? BKE_key_copy(G.main, m_bmesh->key) : NULL;
+};
+
+BL_ShapeDeformer::~BL_ShapeDeformer()
+{
+	if (m_key)
+	{
+		BKE_libblock_free(G.main, m_key);
+		m_key = NULL;
+	}
+};
+
+RAS_Deformer *BL_ShapeDeformer::GetReplica()
+{
+	BL_ShapeDeformer *result;
+
+	result = new BL_ShapeDeformer(*this);
+	result->ProcessReplica();
+	return result;
+}
+
+void BL_ShapeDeformer::ProcessReplica()
+{
+	BL_SkinDeformer::ProcessReplica();
+	m_lastShapeUpdate = -1;
+
+	m_key = m_key ? BKE_key_copy(G.main, m_key) : NULL;
+}
+
+bool BL_ShapeDeformer::LoadShapeDrivers(KX_GameObject* parent)
+{
+	// Only load shape drivers if we have a key
+	if (GetKey() == NULL) {
+		m_useShapeDrivers = false;
+		return false;
+	}
+
+	// Fix drivers since BL_ArmatureObject makes copies
+	if (parent->GetGameObjectType() == SCA_IObject::OBJ_ARMATURE && GetKey()->adt) {
+		BL_ArmatureObject *arma = (BL_ArmatureObject*)parent;
+		FCurve *fcu;
+
+		for (fcu = (FCurve*)GetKey()->adt->drivers.first; fcu; fcu = (FCurve*)fcu->next) {
+
+			DriverVar *dvar;
+			for (dvar = (DriverVar*)fcu->driver->variables.first; dvar; dvar = (DriverVar*)dvar->next) {
+				DRIVER_TARGETS_USED_LOOPER_BEGIN(dvar)
+				{
+					if (dtar->id) {
+						if ((Object*)dtar->id == arma->GetOrigArmatureObject())
+							dtar->id = (ID*)arma->GetArmatureObject();
+					}
+				}
+				DRIVER_TARGETS_LOOPER_END;
+			}
+		}
+	}
+
+	// This used to check if we had drivers from this armature,
+	// now we just assume we want to use shape drivers
+	// and let the animsys handle things.
+	m_useShapeDrivers = true;
+
+	return true;
+}
+
+bool BL_ShapeDeformer::ExecuteShapeDrivers(void)
+{
+	if (m_useShapeDrivers && PoseUpdated()) {
+		// We don't need an actual time, just use 0
+		BKE_animsys_evaluate_animdata(NULL, &GetKey()->id, GetKey()->adt, 0.f, ADT_RECALC_DRIVERS);
+
+		ForceUpdate();
+		m_bDynamic = true;
+		return true;
+	}
+	return false;
+}
+
+bool BL_ShapeDeformer::Update(void)
+{
+	bool bShapeUpdate = false;
+	bool bSkinUpdate = false;
+
+	ExecuteShapeDrivers();
+
+	/* See if the object shape has changed */
+	if (m_lastShapeUpdate != m_gameobj->GetLastFrame()) {
+		/* the key coefficient have been set already, we just need to blend the keys */
+		Object* blendobj = m_gameobj->GetBlendObject();
+
+		/* we will blend the key directly in m_transverts array: it is used by armature as the start position */
+		/* m_key can be NULL in case of Modifier deformer */
+		if (m_key) {
+			WeightsArrayCache cache = {0, NULL};
+			float **per_keyblock_weights;
+
+			/* store verts locally */
+			VerifyStorage();
+
+			per_keyblock_weights = BKE_keyblock_get_per_block_weights(blendobj, m_key, &cache);
+			BKE_key_evaluate_relative(0, m_bmesh->totvert, m_bmesh->totvert, (char *)(float *)m_transverts,
+			                          m_key, NULL, per_keyblock_weights, 0); /* last arg is ignored */
+			BKE_keyblock_free_per_block_weights(m_key, per_keyblock_weights, &cache);
+
+			m_bDynamic = true;
+		}
+
+		// Don't release the weight array as in Blender, it will most likely be reusable on next frame
+		// The weight array are ultimately deleted when the skin mesh is destroyed
+
+		/* Update the current frame */
+		m_lastShapeUpdate=m_gameobj->GetLastFrame();
+
+		// As we have changed, the mesh, the skin deformer must update as well.
+		// This will force the update
+		BL_SkinDeformer::ForceUpdate();
+		bShapeUpdate = true;
+	}
+	// check for armature deform
+	bSkinUpdate = BL_SkinDeformer::UpdateInternal(bShapeUpdate && m_bDynamic);
+
+	// non dynamic deformer = Modifer without armature and shape keys, no need to create storage
+	if (!bSkinUpdate && bShapeUpdate && m_bDynamic) {
+		// this means that there is no armature, we still need to
+		// update the normal (was not done after shape key calculation)
+
+#ifdef __NLA_DEFNORMALS
+		if (m_recalcNormal)
+			RecalcNormals();
+#endif
+
+		// We also need to handle transverts now (used to be in BL_SkinDeformer::Apply())
+		UpdateTransverts();
+		bSkinUpdate = true;
+	}
+
+	return bSkinUpdate;
+}
+
+Key *BL_ShapeDeformer::GetKey()
+{
+	return m_key;
+}