mod_skeletal_animatevertices_generic.c

   1 #include "mod_skeletal_animatevertices_generic.h"
   2
   3 typedef struct
   4 {
   5         float f[12];
   6 }
   7 float12_t;
   8
   9 void Mod_Skeletal_AnimateVertices_Generic(const dp_model_t * RESTRICT model, const frameblend_t * RESTRICT frameblend, const skeleton_t *skeleton, float * RESTRICT vertex3f, float * RESTRICT normal3f, float * RESTRICT svector3f, float * RESTRICT tvector3f)
  10 {
  11         // vertex weighted skeletal
  12         int i, k;
  13         int blends;
  14         float12_t *bonepose;
  15         float12_t *boneposerelative;
  16         float m[12];
  17         const blendweights_t * RESTRICT weights;
  18
  19         //unsigned long long ts = rdtsc();
  20         bonepose = (float12_t *) Mod_Skeletal_AnimateVertices_AllocBuffers(sizeof(float12_t) * (model->num_bones*2 + model->surfmesh.num_blends));
  21         boneposerelative = bonepose + model->num_bones;
  22
  23         if (skeleton && !skeleton->relativetransforms)
  24                 skeleton = NULL;
  25
  26         // interpolate matrices
  27         if (skeleton)
  28         {
  29                 for (i = 0;i < model->num_bones;i++)
  30                 {
  31                         Matrix4x4_ToArray12FloatD3D(&skeleton->relativetransforms[i], m);
  32                         if (model->data_bones[i].parent >= 0)
  33                                 R_ConcatTransforms(bonepose[model->data_bones[i].parent].f, m, bonepose[i].f);
  34                         else
  35                                 memcpy(bonepose[i].f, m, sizeof(m));
  36
  37                         // create a relative deformation matrix to describe displacement
  38                         // from the base mesh, which is used by the actual weighting
  39                         R_ConcatTransforms(bonepose[i].f, model->data_baseboneposeinverse + i * 12, boneposerelative[i].f);
  40                 }
  41         }
  42         else
  43         {
  44                 for (i = 0;i < model->num_bones;i++)
  45                 {
  46                     const short * RESTRICT pose7s = model->data_poses7s + 7 * (frameblend[0].subframe * model->num_bones + i);
  47                         float lerp = frameblend[0].lerp,
  48                                 tx = pose7s[0], ty = pose7s[1], tz = pose7s[2],
  49                                 rx = pose7s[3] * lerp,
  50                                 ry = pose7s[4] * lerp,
  51                                 rz = pose7s[5] * lerp,
  52                                 rw = pose7s[6] * lerp,
  53                                 dx = tx*rw + ty*rz - tz*ry,
  54                                 dy = -tx*rz + ty*rw + tz*rx,
  55                                 dz = tx*ry - ty*rx + tz*rw,
  56                                 dw = -tx*rx - ty*ry - tz*rz,
  57                                 scale, sx, sy, sz, sw;
  58                         for (blends = 1;blends < MAX_FRAMEBLENDS && frameblend[blends].lerp > 0;blends++)
  59                         {
  60                                 const short * RESTRICT pose7s = model->data_poses7s + 7 * (frameblend[blends].subframe * model->num_bones + i);
  61                                 float lerp = frameblend[blends].lerp,
  62                                         tx = pose7s[0], ty = pose7s[1], tz = pose7s[2],
  63                                         qx = pose7s[3], qy = pose7s[4], qz = pose7s[5], qw = pose7s[6];
  64                                 if(rx*qx + ry*qy + rz*qz + rw*qw < 0) lerp = -lerp;
  65                                 qx *= lerp;
  66                                 qy *= lerp;
  67                                 qz *= lerp;
  68                                 qw *= lerp;
  69                                 rx += qx;
  70                                 ry += qy;
  71                                 rz += qz;
  72                                 rw += qw;
  73                                 dx += tx*qw + ty*qz - tz*qy;
  74                                 dy += -tx*qz + ty*qw + tz*qx;
  75                                 dz += tx*qy - ty*qx + tz*qw;
  76                                 dw += -tx*qx - ty*qy - tz*qz;
  77                         }
  78                         scale = 1.0f / (rx*rx + ry*ry + rz*rz + rw*rw);
  79                         sx = rx * scale;
  80                         sy = ry * scale;
  81                         sz = rz * scale;
  82                         sw = rw * scale;
  83                         m[0] = sw*rw + sx*rx - sy*ry - sz*rz;
  84                         m[1] = 2*(sx*ry - sw*rz);
  85                         m[2] = 2*(sx*rz + sw*ry);
  86                         m[3] = model->num_posescale*(dx*sw - dy*sz + dz*sy - dw*sx);
  87                         m[4] = 2*(sx*ry + sw*rz);
  88                         m[5] = sw*rw + sy*ry - sx*rx - sz*rz;
  89                         m[6] = 2*(sy*rz - sw*rx);
  90                         m[7] = model->num_posescale*(dx*sz + dy*sw - dz*sx - dw*sy);
  91                         m[8] = 2*(sx*rz - sw*ry);
  92                         m[9] = 2*(sy*rz + sw*rx);
  93                         m[10] = sw*rw + sz*rz - sx*rx - sy*ry;
  94                         m[11] = model->num_posescale*(dy*sx + dz*sw - dx*sy - dw*sz);
  95                         if (i == r_skeletal_debugbone.integer)
  96                                 m[r_skeletal_debugbonecomponent.integer % 12] += r_skeletal_debugbonevalue.value;
  97                         m[3] *= r_skeletal_debugtranslatex.value;
  98                         m[7] *= r_skeletal_debugtranslatey.value;
  99                         m[11] *= r_skeletal_debugtranslatez.value;
 100                         if (model->data_bones[i].parent >= 0)
 101                                 R_ConcatTransforms(bonepose[model->data_bones[i].parent].f, m, bonepose[i].f);
 102                         else
 103                                 memcpy(bonepose[i].f, m, sizeof(m));
 104                         // create a relative deformation matrix to describe displacement
 105                         // from the base mesh, which is used by the actual weighting
 106                         R_ConcatTransforms(bonepose[i].f, model->data_baseboneposeinverse + i * 12, boneposerelative[i].f);
 107                 }
 108         }
 109
 110         // generate matrices for all blend combinations
 111         weights = model->surfmesh.data_blendweights;
 112         for (i = 0;i < model->surfmesh.num_blends;i++, weights++)
 113         {
 114                 float * RESTRICT b = boneposerelative[model->num_bones + i].f;
 115                 const float * RESTRICT m = boneposerelative[weights->index[0]].f;
 116                 float f = weights->influence[0] * (1.0f / 255.0f);
 117                 b[ 0] = f*m[ 0]; b[ 1] = f*m[ 1]; b[ 2] = f*m[ 2]; b[ 3] = f*m[ 3];
 118                 b[ 4] = f*m[ 4]; b[ 5] = f*m[ 5]; b[ 6] = f*m[ 6]; b[ 7] = f*m[ 7];
 119                 b[ 8] = f*m[ 8]; b[ 9] = f*m[ 9]; b[10] = f*m[10]; b[11] = f*m[11];
 120                 for (k = 1;k < 4 && weights->influence[k];k++)
 121                 {
 122                         m = boneposerelative[weights->index[k]].f;
 123                         f = weights->influence[k] * (1.0f / 255.0f);
 124                         b[ 0] += f*m[ 0]; b[ 1] += f*m[ 1]; b[ 2] += f*m[ 2]; b[ 3] += f*m[ 3];
 125                         b[ 4] += f*m[ 4]; b[ 5] += f*m[ 5]; b[ 6] += f*m[ 6]; b[ 7] += f*m[ 7];
 126                         b[ 8] += f*m[ 8]; b[ 9] += f*m[ 9]; b[10] += f*m[10]; b[11] += f*m[11];
 127                 }
 128         }
 129
 130 #define LOAD_MATRIX_SCALAR() const float * RESTRICT m = boneposerelative[*b].f
 131
 132 #define LOAD_MATRIX3() \
 133         LOAD_MATRIX_SCALAR()
 134 #define LOAD_MATRIX4() \
 135         LOAD_MATRIX_SCALAR()
 136
 137 #define TRANSFORM_POSITION_SCALAR(in, out) \
 138         (out)[0] = ((in)[0] * m[0] + (in)[1] * m[1] + (in)[2] * m[ 2] + m[3]); \
 139         (out)[1] = ((in)[0] * m[4] + (in)[1] * m[5] + (in)[2] * m[ 6] + m[7]); \
 140         (out)[2] = ((in)[0] * m[8] + (in)[1] * m[9] + (in)[2] * m[10] + m[11]);
 141 #define TRANSFORM_VECTOR_SCALAR(in, out) \
 142         (out)[0] = ((in)[0] * m[0] + (in)[1] * m[1] + (in)[2] * m[ 2]); \
 143         (out)[1] = ((in)[0] * m[4] + (in)[1] * m[5] + (in)[2] * m[ 6]); \
 144         (out)[2] = ((in)[0] * m[8] + (in)[1] * m[9] + (in)[2] * m[10]);
 145
 146 #define TRANSFORM_POSITION(in, out) \
 147         TRANSFORM_POSITION_SCALAR(in, out)
 148 #define TRANSFORM_VECTOR(in, out) \
 149         TRANSFORM_VECTOR_SCALAR(in, out)
 150
 151         // transform vertex attributes by blended matrices
 152         if (vertex3f)
 153         {
 154                 const float * RESTRICT v = model->surfmesh.data_vertex3f;
 155                 const unsigned short * RESTRICT b = model->surfmesh.blends;
 156                 // special case common combinations of attributes to avoid repeated loading of matrices
 157                 if (normal3f)
 158                 {
 159                         const float * RESTRICT n = model->surfmesh.data_normal3f;
 160                         if (svector3f && tvector3f)
 161                         {
 162                                 const float * RESTRICT sv = model->surfmesh.data_svector3f;
 163                                 const float * RESTRICT tv = model->surfmesh.data_tvector3f;
 164
 165                                 // Note that for SSE each iteration stores one element past end, so we break one vertex short
 166                                 // and handle that with scalars in that case
 167                                 for (i = 0; i < model->surfmesh.num_vertices; i++, v += 3, n += 3, sv += 3, tv += 3, b++,
 168                                                 vertex3f += 3, normal3f += 3, svector3f += 3, tvector3f += 3)
 169                                 {
 170                                         LOAD_MATRIX4();
 171                                         TRANSFORM_POSITION(v, vertex3f);
 172                                         TRANSFORM_VECTOR(n, normal3f);
 173                                         TRANSFORM_VECTOR(sv, svector3f);
 174                                         TRANSFORM_VECTOR(tv, tvector3f);
 175                                 }
 176
 177                                 return;
 178                         }
 179
 180                         for (i = 0;i < model->surfmesh.num_vertices; i++, v += 3, n += 3, b++, vertex3f += 3, normal3f += 3)
 181                         {
 182                                 LOAD_MATRIX4();
 183                                 TRANSFORM_POSITION(v, vertex3f);
 184                                 TRANSFORM_VECTOR(n, normal3f);
 185                         }
 186                 }
 187                 else
 188                 {
 189                         for (i = 0;i < model->surfmesh.num_vertices; i++, v += 3, b++, vertex3f += 3)
 190                         {
 191                                 LOAD_MATRIX4();
 192                                 TRANSFORM_POSITION(v, vertex3f);
 193                         }
 194                 }
 195         }
 196
 197         else if (normal3f)
 198         {
 199                 const float * RESTRICT n = model->surfmesh.data_normal3f;
 200                 const unsigned short * RESTRICT b = model->surfmesh.blends;
 201                 for (i = 0; i < model->surfmesh.num_vertices; i++, n += 3, b++, normal3f += 3)
 202                 {
 203                         LOAD_MATRIX3();
 204                         TRANSFORM_VECTOR(n, normal3f);
 205                 }
 206         }
 207
 208         if (svector3f)
 209         {
 210                 const float * RESTRICT sv = model->surfmesh.data_svector3f;
 211                 const unsigned short * RESTRICT b = model->surfmesh.blends;
 212                 for (i = 0; i < model->surfmesh.num_vertices; i++, sv += 3, b++, svector3f += 3)
 213                 {
 214                         LOAD_MATRIX3();
 215                         TRANSFORM_VECTOR(sv, svector3f);
 216                 }
 217         }
 218
 219         if (tvector3f)
 220         {
 221                 const float * RESTRICT tv = model->surfmesh.data_tvector3f;
 222                 const unsigned short * RESTRICT b = model->surfmesh.blends;
 223                 for (i = 0; i < model->surfmesh.num_vertices; i++, tv += 3, b++, tvector3f += 3)
 224                 {
 225                         LOAD_MATRIX3();
 226                         TRANSFORM_VECTOR(tv, tvector3f);
 227                 }
 228         }
 229 }