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