From: havoc <havoc@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Fri, 23 Feb 2007 09:19:36 +0000 (+0000)
Subject: memset arrays before writing skeletal vertices into them (as the code did long ago... 
X-Git-Tag: xonotic-v0.1.0preview~3513
X-Git-Url: http://git.xonotic.org/?a=commitdiff_plain;h=6bce8e557eab50a45b2ee90016142119113e763b;p=xonotic%2Fdarkplaces.git

memset arrays before writing skeletal vertices into them (as the code did long ago), this is an 8% improvement in Mod_Alias_GetMesh_Vertices in my benchmarking (7.58 seconds in profile before, 6.95 seconds after)


git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@6903 d7cf8633-e32d-0410-b094-e92efae38249
---

diff --git a/model_alias.c b/model_alias.c
index 590ee02d..ebec7560 100644
--- a/model_alias.c
+++ b/model_alias.c
@@ -86,6 +86,7 @@ void Mod_Alias_GetMesh_Vertices(const model_t *model, const frameblend_t *frameb
 			const float *v = model->surfmesh.data_vertex3f;
 			const int *wi = model->surfmesh.data_vertexweightindex4i;
 			const float *wf = model->surfmesh.data_vertexweightinfluence4f;
+			memset(vertex3f, 0, sizeof(float[3]) * model->surfmesh.num_vertices);
 			for (i = 0;i < model->surfmesh.num_vertices;i++, v += 3, wi += 4, wf += 4, vertex3f += 3)
 			{
 				if (wf[0] == 1)
@@ -118,6 +119,7 @@ void Mod_Alias_GetMesh_Vertices(const model_t *model, const frameblend_t *frameb
 			const float *n = model->surfmesh.data_normal3f;
 			const int *wi = model->surfmesh.data_vertexweightindex4i;
 			const float *wf = model->surfmesh.data_vertexweightinfluence4f;
+			memset(normal3f, 0, sizeof(float[3]) * model->surfmesh.num_vertices);
 			for (i = 0;i < model->surfmesh.num_vertices;i++, n += 3, wi += 4, wf += 4, normal3f += 3)
 			{
 				if (wf[0] == 1)
@@ -150,6 +152,7 @@ void Mod_Alias_GetMesh_Vertices(const model_t *model, const frameblend_t *frameb
 			const float *sv = model->surfmesh.data_svector3f;
 			const int *wi = model->surfmesh.data_vertexweightindex4i;
 			const float *wf = model->surfmesh.data_vertexweightinfluence4f;
+			memset(svector3f, 0, sizeof(float[3]) * model->surfmesh.num_vertices);
 			for (i = 0;i < model->surfmesh.num_vertices;i++, sv += 3, wi += 4, wf += 4, svector3f += 3)
 			{
 				if (wf[0] == 1)
@@ -182,6 +185,7 @@ void Mod_Alias_GetMesh_Vertices(const model_t *model, const frameblend_t *frameb
 			const float *tv = model->surfmesh.data_tvector3f;
 			const int *wi = model->surfmesh.data_vertexweightindex4i;
 			const float *wf = model->surfmesh.data_vertexweightinfluence4f;
+			memset(tvector3f, 0, sizeof(float[3]) * model->surfmesh.num_vertices);
 			for (i = 0;i < model->surfmesh.num_vertices;i++, tv += 3, wi += 4, wf += 4, tvector3f += 3)
 			{
 				if (wf[0] == 1)