fix crashes with last patch to model loaders

load vertex colors in iqm model format if they exist (can be accessed in
GLSL Shaders)

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@11405 d7cf8633-e32d-0410-b094-e92efae38249
::stable-branch::merge=b081b91727d6a51377d07c83245f8a22bac3755c

diff --git a/model_alias.c b/model_alias.c
index 6c3de25fcd4ef89dc7737722161ebc7a97995c3a..f1bdb3a98d570bb6ca162b5066465cbb25d0b1d1 100644 (file)
--- a/model_alias.c
+++ b/model_alias.c
@@ -529,19 +529,51 @@ static void Mod_Alias_CalculateBoundingBox(void)
        qboolean firstvertex = true;
        float dist, yawradius, radius;
        float *v;
-       float *vertex3f;
-       frameblend_t frameblend[MAX_FRAMEBLENDS];
-       memset(frameblend, 0, sizeof(frameblend));
-       frameblend[0].lerp = 1;
-       vertex3f = (float *) Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_vertices * sizeof(float[3]));
        VectorClear(loadmodel->normalmins);
        VectorClear(loadmodel->normalmaxs);
        yawradius = 0;
        radius = 0;
-       for (frameblend[0].subframe = 0;frameblend[0].subframe < loadmodel->num_poses;frameblend[0].subframe++)
+       if (loadmodel->AnimateVertices)
+       {
+               float *vertex3f;
+               frameblend_t frameblend[MAX_FRAMEBLENDS];
+               memset(frameblend, 0, sizeof(frameblend));
+               frameblend[0].lerp = 1;
+               vertex3f = (float *) Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_vertices * sizeof(float[3]));
+               for (frameblend[0].subframe = 0;frameblend[0].subframe < loadmodel->num_poses;frameblend[0].subframe++)
+               {
+                       loadmodel->AnimateVertices(loadmodel, frameblend, NULL, vertex3f, NULL, NULL, NULL);
+                       for (vnum = 0, v = vertex3f;vnum < loadmodel->surfmesh.num_vertices;vnum++, v += 3)
+                       {
+                               if (firstvertex)
+                               {
+                                       firstvertex = false;
+                                       VectorCopy(v, loadmodel->normalmins);
+                                       VectorCopy(v, loadmodel->normalmaxs);
+                               }
+                               else
+                               {
+                                       if (loadmodel->normalmins[0] > v[0]) loadmodel->normalmins[0] = v[0];
+                                       if (loadmodel->normalmins[1] > v[1]) loadmodel->normalmins[1] = v[1];
+                                       if (loadmodel->normalmins[2] > v[2]) loadmodel->normalmins[2] = v[2];
+                                       if (loadmodel->normalmaxs[0] < v[0]) loadmodel->normalmaxs[0] = v[0];
+                                       if (loadmodel->normalmaxs[1] < v[1]) loadmodel->normalmaxs[1] = v[1];
+                                       if (loadmodel->normalmaxs[2] < v[2]) loadmodel->normalmaxs[2] = v[2];
+                               }
+                               dist = v[0] * v[0] + v[1] * v[1];
+                               if (yawradius < dist)
+                                       yawradius = dist;
+                               dist += v[2] * v[2];
+                               if (radius < dist)
+                                       radius = dist;
+                       }
+               }
+               if (vertex3f)
+                       Mem_Free(vertex3f);
+       }
+       else
        {
-               loadmodel->AnimateVertices(loadmodel, frameblend, NULL, vertex3f, NULL, NULL, NULL);
-               for (vnum = 0, v = vertex3f;vnum < loadmodel->surfmesh.num_vertices;vnum++, v += 3)
+               for (vnum = 0, v = loadmodel->surfmesh.data_vertex3f;vnum < loadmodel->surfmesh.num_vertices;vnum++, v += 3)
                {
                        if (firstvertex)
                        {
@@ -566,8 +598,6 @@ static void Mod_Alias_CalculateBoundingBox(void)
                                radius = dist;
                }
        }
-       if (vertex3f)
-               Mem_Free(vertex3f);
        radius = sqrt(radius);
        yawradius = sqrt(yawradius);
        loadmodel->yawmins[0] = loadmodel->yawmins[1] = -yawradius;
@@ -1071,10 +1101,13 @@ void Mod_IDP0_Load(dp_model_t *mod, void *buffer, void *bufferend)
                loadmodel->surfmesh.data_neighbor3i = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_triangles * sizeof(int[3]));
        }
        Mod_MDL_LoadFrames (startframes, numverts, vertremap);
+       loadmodel->surfmesh.isanimated = loadmodel->num_bones > 1 || loadmodel->numframes > 1 || (loadmodel->animscenes && loadmodel->animscenes[0].framecount > 1);
+       loadmodel->AnimateVertices = Mod_MDL_AnimateVertices; // needed during loading, may be cleared by code later in this function
        if (loadmodel->surfmesh.data_neighbor3i)
                Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
        Mod_Alias_CalculateBoundingBox();
        Mod_Alias_MorphMesh_CompileFrames();
+       loadmodel->AnimateVertices = loadmodel->surfmesh.isanimated ? Mod_MDL_AnimateVertices : NULL;
 
        Mem_Free(vertst);
        Mem_Free(vertremap);
@@ -1453,12 +1486,12 @@ void Mod_IDP2_Load(dp_model_t *mod, void *buffer, void *bufferend)
        Mem_Free(vertremap);
 
        loadmodel->surfmesh.isanimated = loadmodel->num_bones > 1 || loadmodel->numframes > 1 || (loadmodel->animscenes && loadmodel->animscenes[0].framecount > 1);
-       loadmodel->AnimateVertices = loadmodel->surfmesh.isanimated ? Mod_MDL_AnimateVertices : NULL;
-
+       loadmodel->AnimateVertices = Mod_MDL_AnimateVertices; // needed during loading, may be cleared by code later in this function
        if (loadmodel->surfmesh.data_neighbor3i)
                Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
        Mod_Alias_CalculateBoundingBox();
        Mod_Alias_MorphMesh_CompileFrames();
+       loadmodel->AnimateVertices = loadmodel->surfmesh.isanimated ? Mod_MDL_AnimateVertices : NULL;
 
        surface = loadmodel->data_surfaces;
        surface->texture = loadmodel->data_textures;
@@ -1588,8 +1621,6 @@ void Mod_IDP3_Load(dp_model_t *mod, void *buffer, void *bufferend)
        loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
        loadmodel->num_textures = loadmodel->num_surfaces * loadmodel->numskins;
        loadmodel->num_texturesperskin = loadmodel->num_surfaces;
-       loadmodel->surfmesh.isanimated = loadmodel->num_bones > 1 || loadmodel->numframes > 1 || (loadmodel->animscenes && loadmodel->animscenes[0].framecount > 1);
-       loadmodel->AnimateVertices = loadmodel->surfmesh.isanimated ? Mod_MD3_AnimateVertices : NULL;
        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]) + (r_enableshadowvolumes.integer ? meshtriangles * sizeof(int[3]) : 0) + (meshvertices <= 65536 ? meshtriangles * sizeof(unsigned short[3]) : 0) + meshvertices * sizeof(float[2]) + meshvertices * loadmodel->numframes * sizeof(md3vertex_t));
        loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
        loadmodel->sortedmodelsurfaces = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
@@ -1654,12 +1685,15 @@ void Mod_IDP3_Load(dp_model_t *mod, void *buffer, void *bufferend)
        if (loadmodel->surfmesh.data_element3s)
                for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
                        loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
+       loadmodel->surfmesh.isanimated = loadmodel->num_bones > 1 || loadmodel->numframes > 1 || (loadmodel->animscenes && loadmodel->animscenes[0].framecount > 1);
+       loadmodel->AnimateVertices = Mod_MDL_AnimateVertices; // needed during loading, may be cleared by code later in this function
        if (loadmodel->surfmesh.data_neighbor3i)
                Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
        Mod_Alias_MorphMesh_CompileFrames();
        Mod_Alias_CalculateBoundingBox();
        Mod_FreeSkinFiles(skinfiles);
        Mod_MakeSortedSurfaces(loadmodel);
+       loadmodel->AnimateVertices = loadmodel->surfmesh.isanimated ? Mod_MDL_AnimateVertices : NULL;
 
        if (!loadmodel->surfmesh.isanimated)
        {
@@ -3042,14 +3076,16 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        int *outelements;
        const int *inneighbors;
        int *outneighbors;
-       float *outvertex, *outnormal, *outtexcoord, *outsvector, *outtvector;
+       float *outvertex, *outnormal, *outtexcoord, *outsvector, *outtvector, *outcolor;
        // this pointers into the file data are read only through Little* functions so they can be unaligned memory
        const float *vnormal = NULL;
        const float *vposition = NULL;
        const float *vtangent = NULL;
        const float *vtexcoord = NULL;
+       const float *vcolor4f = NULL;
        const unsigned char *vblendindexes = NULL;
        const unsigned char *vblendweights = NULL;
+       const unsigned char *vcolor4ub = NULL;
        const unsigned short *framedata = NULL;
        // temporary memory allocations (because the data in the file may be misaligned)
        iqmanim_t *anims = NULL;
@@ -3197,6 +3233,12 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                        if (va.format == IQM_UBYTE && va.size == 4)
                                vblendweights = (const unsigned char *)(pbase + va.offset);
                        break;
+               case IQM_COLOR:
+                       if (va.format == IQM_FLOAT && va.size == 4)
+                               vcolor4f = (const float *)(pbase + va.offset);
+                       if (va.format == IQM_UBYTE && va.size == 4)
+                               vcolor4ub = (const unsigned char *)(pbase + va.offset);
+                       break;
                }
        }
        if (header.num_vertexes > 0 && (!vposition || !vtexcoord || ((header.num_frames > 0 || header.num_anims > 0) && (!vblendindexes || !vblendweights))))
@@ -3240,7 +3282,7 @@ 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]) + (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));
+       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]) + (vcolor4f || vcolor4ub ? sizeof(float[4]) : 0)) + (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);
@@ -3256,6 +3298,10 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
        loadmodel->surfmesh.data_tvector3f = (float *)data;data += meshvertices * sizeof(float[3]);
        loadmodel->surfmesh.data_normal3f = (float *)data;data += meshvertices * sizeof(float[3]);
        loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += meshvertices * sizeof(float[2]);
+       if (vcolor4f || vcolor4ub)
+       {
+               loadmodel->surfmesh.data_lightmapcolor4f = (float *)data;data += meshvertices * sizeof(float[4]);
+       }
        loadmodel->data_baseboneposeinverse = (float *)data;data += loadmodel->num_bones * sizeof(float[12]);
        loadmodel->skinscenes = (animscene_t *)data;data += loadmodel->numskins * sizeof(animscene_t);
        loadmodel->data_bones = (aliasbone_t *)data;data += loadmodel->num_bones * sizeof(aliasbone_t);
@@ -3662,6 +3708,35 @@ void Mod_INTERQUAKEMODEL_Load(dp_model_t *mod, void *buffer, void *bufferend)
                }
        }
 
+       if (vcolor4f)
+       {
+               outcolor = loadmodel->surfmesh.data_lightmapcolor4f;
+               // this unaligned memory access is safe (LittleFloat reads as bytes)
+               for (i = 0;i < (int)header.num_vertexes;i++)
+               {
+                       outcolor[0] = LittleFloat(vcolor4f[0]);
+                       outcolor[1] = LittleFloat(vcolor4f[1]);
+                       outcolor[2] = LittleFloat(vcolor4f[2]);
+                       outcolor[3] = LittleFloat(vcolor4f[3]);
+                       vcolor4f += 4;
+                       outcolor += 4;
+               }
+       }
+       else if (vcolor4ub)
+       {
+               outcolor = loadmodel->surfmesh.data_lightmapcolor4f;
+               // this unaligned memory access is safe (all bytes)
+               for (i = 0;i < (int)header.num_vertexes;i++)
+               {
+                       outcolor[0] = vcolor4ub[0] * (1.0f / 128.0f);
+                       outcolor[1] = vcolor4ub[1] * (1.0f / 128.0f);
+                       outcolor[2] = vcolor4ub[2] * (1.0f / 128.0f);
+                       outcolor[3] = vcolor4ub[3] * (1.0f / 128.0f);
+                       vcolor4ub += 4;
+                       outcolor += 4;
+               }
+       }
+
        // load meshes
        for (i = 0;i < (int)header.num_meshes;i++)
        {