From: eihrul <eihrul@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Mon, 11 Jul 2011 09:17:39 +0000 (+0000)
Subject: handle IQM models with no blend weights
X-Git-Tag: xonotic-v0.5.0~74
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=e324d619299123c36326aeabb8326dca04ab2df4;p=xonotic%2Fdarkplaces.git

handle IQM models with no blend weights

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@11245 d7cf8633-e32d-0410-b094-e92efae38249
::stable-branch::merge=3d33cdedf26c48222748feebed9dff29b687dcb0
---

diff --git a/model_alias.c b/model_alias.c
index 94f09361..1a75f9b0 100644
--- a/model_alias.c
+++ b/model_alias.c
@@ -3100,7 +3100,7 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
 			break;
 		}
 	}
-	if (!vposition || !vtexcoord || !vblendindexes || !vblendweights)
+	if (!vposition || !vtexcoord || ((header->num_frames > 0 || header->num_anims > 0) && (!vblendindexes || !vblendweights)))
 	{
 		Con_Printf("%s is missing vertex array data\n", loadmodel->name);
 		return;
@@ -3140,7 +3140,7 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
 	meshtriangles = header->num_triangles;
 
 	// do most allocations as one merged chunk
-	data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + (meshvertices <= 65536 ? meshtriangles * sizeof(unsigned short[3]) : 0) + (r_enableshadowvolumes.integer ? meshtriangles * sizeof(int[3]) : 0) + meshvertices * (sizeof(float[14]) + sizeof(unsigned short)) + loadmodel->num_poses * loadmodel->num_bones * sizeof(short[6]) + loadmodel->num_bones * sizeof(float[12]) + loadmodel->numskins * sizeof(animscene_t) + loadmodel->num_bones * sizeof(aliasbone_t) + loadmodel->numframes * sizeof(animscene_t));
+	data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + (meshvertices <= 65536 ? meshtriangles * sizeof(unsigned short[3]) : 0) + (r_enableshadowvolumes.integer ? meshtriangles * sizeof(int[3]) : 0) + meshvertices * sizeof(float[14]) + (vblendindexes && vblendweights ? meshvertices * sizeof(unsigned short) : 0) + loadmodel->num_poses * loadmodel->num_bones * sizeof(short[6]) + loadmodel->num_bones * sizeof(float[12]) + loadmodel->numskins * sizeof(animscene_t) + loadmodel->num_bones * sizeof(aliasbone_t) + loadmodel->numframes * sizeof(animscene_t));
 	loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
 	loadmodel->sortedmodelsurfaces = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
 	loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
@@ -3160,14 +3160,18 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
 	loadmodel->skinscenes = (animscene_t *)data;data += loadmodel->numskins * sizeof(animscene_t);
 	loadmodel->data_bones = (aliasbone_t *)data;data += loadmodel->num_bones * sizeof(aliasbone_t);
 	loadmodel->animscenes = (animscene_t *)data;data += loadmodel->numframes * sizeof(animscene_t);
-	loadmodel->surfmesh.num_blends = 0;
-	loadmodel->surfmesh.blends = (unsigned short *)data;data += meshvertices * sizeof(unsigned short);
+	if (vblendindexes && vblendweights)
+	{
+		loadmodel->surfmesh.num_blends = 0;
+		loadmodel->surfmesh.blends = (unsigned short *)data;data += meshvertices * sizeof(unsigned short);
+	}
 	if (meshvertices <= 65536)
 	{
 		loadmodel->surfmesh.data_element3s = (unsigned short *)data;data += meshtriangles * sizeof(unsigned short[3]);
 	}
 	loadmodel->data_poses6s = (short *)data;data += loadmodel->num_poses * loadmodel->num_bones * sizeof(short[6]);
-	loadmodel->surfmesh.data_blendweights = (blendweights_t *)Mem_Alloc(loadmodel->mempool, meshvertices * sizeof(blendweights_t));
+	if (vblendindexes && vblendweights)
+		loadmodel->surfmesh.data_blendweights = (blendweights_t *)Mem_Alloc(loadmodel->mempool, meshvertices * sizeof(blendweights_t));
 
 	for (i = 0;i < loadmodel->numskins;i++)
 	{
@@ -3531,7 +3535,7 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
 		}
 	}
 
-	for (i = 0; i < (int)header->num_vertexes;i++)
+	if (vblendindexes && vblendweights) for (i = 0; i < (int)header->num_vertexes;i++)
 	{
 		blendweights_t weights;
 		memcpy(weights.index, vblendindexes + i*4, 4);