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         if (!model->surfmesh.num_vertices)
  20                 return;
  21
  22         if (!model->num_bones)
  23         {
  24                 if (vertex3f) memcpy(vertex3f, model->surfmesh.data_vertex3f, model->surfmesh.num_vertices*sizeof(float[3]));
  25                 if (normal3f) memcpy(normal3f, model->surfmesh.data_normal3f, model->surfmesh.num_vertices*sizeof(float[3]));
  26                 if (svector3f) memcpy(svector3f, model->surfmesh.data_svector3f, model->surfmesh.num_vertices*sizeof(float[3]));
  27                 if (tvector3f) memcpy(tvector3f, model->surfmesh.data_tvector3f, model->surfmesh.num_vertices*sizeof(float[3]));
  28                 return;
  29         }
  30
  31         //unsigned long long ts = rdtsc();
  32         bonepose = (float12_t *) Mod_Skeletal_AnimateVertices_AllocBuffers(sizeof(float12_t) * (model->num_bones*2 + model->surfmesh.num_blends));
  33         boneposerelative = bonepose + model->num_bones;
  34
  35         if (skeleton && !skeleton->relativetransforms)
  36                 skeleton = NULL;
  37
  38         // interpolate matrices
  39         if (skeleton)
  40         {
  41                 for (i = 0;i < model->num_bones;i++)
  42                 {
  43                         Matrix4x4_ToArray12FloatD3D(&skeleton->relativetransforms[i], m);
  44                         if (model->data_bones[i].parent >= 0)
  45                                 R_ConcatTransforms(bonepose[model->data_bones[i].parent].f, m, bonepose[i].f);
  46                         else
  47                                 memcpy(bonepose[i].f, m, sizeof(m));
  48
  49                         // create a relative deformation matrix to describe displacement
  50                         // from the base mesh, which is used by the actual weighting
  51                         R_ConcatTransforms(bonepose[i].f, model->data_baseboneposeinverse + i * 12, boneposerelative[i].f);
  52                 }
  53         }
  54         else
  55         {
  56                 float originscale = model->num_posescale;
  57                 float x,y,z,w,lerp;
  58                 const short * RESTRICT pose6s;
  59
  60                 for (i = 0;i < model->num_bones;i++)
  61                 {
  62                         memset(m, 0, sizeof(m));
  63                         for (blends = 0;blends < MAX_FRAMEBLENDS && frameblend[blends].lerp > 0;blends++)
  64                         {
  65                                 pose6s = model->data_poses6s + 6 * (frameblend[blends].subframe * model->num_bones + i);
  66                                 lerp = frameblend[blends].lerp;
  67                                 x = pose6s[3] * (1.0f / 32767.0f);
  68                                 y = pose6s[4] * (1.0f / 32767.0f);
  69                                 z = pose6s[5] * (1.0f / 32767.0f);
  70                                 w = 1.0f - (x*x+y*y+z*z);
  71                                 w = w > 0.0f ? -sqrt(w) : 0.0f;
  72                                 m[ 0] += (1-2*(y*y+z*z)) * lerp;
  73                                 m[ 1] += (  2*(x*y-z*w)) * lerp;
  74                                 m[ 2] += (  2*(x*z+y*w)) * lerp;
  75                                 m[ 3] += (pose6s[0] * originscale) * lerp;
  76                                 m[ 4] += (  2*(x*y+z*w)) * lerp;
  77                                 m[ 5] += (1-2*(x*x+z*z)) * lerp;
  78                                 m[ 6] += (  2*(y*z-x*w)) * lerp;
  79                                 m[ 7] += (pose6s[1] * originscale) * lerp;
  80                                 m[ 8] += (  2*(x*z-y*w)) * lerp;
  81                                 m[ 9] += (  2*(y*z+x*w)) * lerp;
  82                                 m[10] += (1-2*(x*x+y*y)) * lerp;
  83                                 m[11] += (pose6s[2] * originscale) * lerp;
  84                         }
  85                         VectorNormalize(m       );
  86                         VectorNormalize(m + 4);
  87                         VectorNormalize(m + 8);
  88                         if (i == r_skeletal_debugbone.integer)
  89                                 m[r_skeletal_debugbonecomponent.integer % 12] += r_skeletal_debugbonevalue.value;
  90                         m[3] *= r_skeletal_debugtranslatex.value;
  91                         m[7] *= r_skeletal_debugtranslatey.value;
  92                         m[11] *= r_skeletal_debugtranslatez.value;
  93                         if (model->data_bones[i].parent >= 0)
  94                                 R_ConcatTransforms(bonepose[model->data_bones[i].parent].f, m, bonepose[i].f);
  95                         else
  96                                 memcpy(bonepose[i].f, m, sizeof(m));
  97                         // create a relative deformation matrix to describe displacement
  98                         // from the base mesh, which is used by the actual weighting
  99                         R_ConcatTransforms(bonepose[i].f, model->data_baseboneposeinverse + i * 12, boneposerelative[i].f);
 100                 }
 101         }
 102
 103         // generate matrices for all blend combinations
 104         weights = model->surfmesh.data_blendweights;
 105         for (i = 0;i < model->surfmesh.num_blends;i++, weights++)
 106         {
 107                 float * RESTRICT b = boneposerelative[model->num_bones + i].f;
 108                 const float * RESTRICT m = boneposerelative[weights->index[0]].f;
 109                 float f = weights->influence[0] * (1.0f / 255.0f);
 110                 b[ 0] = f*m[ 0]; b[ 1] = f*m[ 1]; b[ 2] = f*m[ 2]; b[ 3] = f*m[ 3];
 111                 b[ 4] = f*m[ 4]; b[ 5] = f*m[ 5]; b[ 6] = f*m[ 6]; b[ 7] = f*m[ 7];
 112                 b[ 8] = f*m[ 8]; b[ 9] = f*m[ 9]; b[10] = f*m[10]; b[11] = f*m[11];
 113                 for (k = 1;k < 4 && weights->influence[k];k++)
 114                 {
 115                         m = boneposerelative[weights->index[k]].f;
 116                         f = weights->influence[k] * (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                 }
 121         }
 122
 123 #define LOAD_MATRIX_SCALAR() const float * RESTRICT m = boneposerelative[*b].f
 124
 125 #define LOAD_MATRIX3() \
 126         LOAD_MATRIX_SCALAR()
 127 #define LOAD_MATRIX4() \
 128         LOAD_MATRIX_SCALAR()
 129
 130 #define TRANSFORM_POSITION_SCALAR(in, out) \
 131         (out)[0] = ((in)[0] * m[0] + (in)[1] * m[1] + (in)[2] * m[ 2] + m[3]); \
 132         (out)[1] = ((in)[0] * m[4] + (in)[1] * m[5] + (in)[2] * m[ 6] + m[7]); \
 133         (out)[2] = ((in)[0] * m[8] + (in)[1] * m[9] + (in)[2] * m[10] + m[11]);
 134 #define TRANSFORM_VECTOR_SCALAR(in, out) \
 135         (out)[0] = ((in)[0] * m[0] + (in)[1] * m[1] + (in)[2] * m[ 2]); \
 136         (out)[1] = ((in)[0] * m[4] + (in)[1] * m[5] + (in)[2] * m[ 6]); \
 137         (out)[2] = ((in)[0] * m[8] + (in)[1] * m[9] + (in)[2] * m[10]);
 138
 139 #define TRANSFORM_POSITION(in, out) \
 140         TRANSFORM_POSITION_SCALAR(in, out)
 141 #define TRANSFORM_VECTOR(in, out) \
 142         TRANSFORM_VECTOR_SCALAR(in, out)
 143
 144         // transform vertex attributes by blended matrices
 145         if (vertex3f)
 146         {
 147                 const float * RESTRICT v = model->surfmesh.data_vertex3f;
 148                 const unsigned short * RESTRICT b = model->surfmesh.blends;
 149                 // special case common combinations of attributes to avoid repeated loading of matrices
 150                 if (normal3f)
 151                 {
 152                         const float * RESTRICT n = model->surfmesh.data_normal3f;
 153                         if (svector3f && tvector3f)
 154                         {
 155                                 const float * RESTRICT sv = model->surfmesh.data_svector3f;
 156                                 const float * RESTRICT tv = model->surfmesh.data_tvector3f;
 157
 158                                 // Note that for SSE each iteration stores one element past end, so we break one vertex short
 159                                 // and handle that with scalars in that case
 160                                 for (i = 0; i < model->surfmesh.num_vertices; i++, v += 3, n += 3, sv += 3, tv += 3, b++,
 161                                                 vertex3f += 3, normal3f += 3, svector3f += 3, tvector3f += 3)
 162                                 {
 163                                         LOAD_MATRIX4();
 164                                         TRANSFORM_POSITION(v, vertex3f);
 165                                         TRANSFORM_VECTOR(n, normal3f);
 166                                         TRANSFORM_VECTOR(sv, svector3f);
 167                                         TRANSFORM_VECTOR(tv, tvector3f);
 168                                 }
 169
 170                                 return;
 171                         }
 172
 173                         for (i = 0;i < model->surfmesh.num_vertices; i++, v += 3, n += 3, b++, vertex3f += 3, normal3f += 3)
 174                         {
 175                                 LOAD_MATRIX4();
 176                                 TRANSFORM_POSITION(v, vertex3f);
 177                                 TRANSFORM_VECTOR(n, normal3f);
 178                         }
 179                 }
 180                 else
 181                 {
 182                         for (i = 0;i < model->surfmesh.num_vertices; i++, v += 3, b++, vertex3f += 3)
 183                         {
 184                                 LOAD_MATRIX4();
 185                                 TRANSFORM_POSITION(v, vertex3f);
 186                         }
 187                 }
 188         }
 189
 190         else if (normal3f)
 191         {
 192                 const float * RESTRICT n = model->surfmesh.data_normal3f;
 193                 const unsigned short * RESTRICT b = model->surfmesh.blends;
 194                 for (i = 0; i < model->surfmesh.num_vertices; i++, n += 3, b++, normal3f += 3)
 195                 {
 196                         LOAD_MATRIX3();
 197                         TRANSFORM_VECTOR(n, normal3f);
 198                 }
 199         }
 200
 201         if (svector3f)
 202         {
 203                 const float * RESTRICT sv = model->surfmesh.data_svector3f;
 204                 const unsigned short * RESTRICT b = model->surfmesh.blends;
 205                 for (i = 0; i < model->surfmesh.num_vertices; i++, sv += 3, b++, svector3f += 3)
 206                 {
 207                         LOAD_MATRIX3();
 208                         TRANSFORM_VECTOR(sv, svector3f);
 209                 }
 210         }
 211
 212         if (tvector3f)
 213         {
 214                 const float * RESTRICT tv = model->surfmesh.data_tvector3f;
 215                 const unsigned short * RESTRICT b = model->surfmesh.blends;
 216                 for (i = 0; i < model->surfmesh.num_vertices; i++, tv += 3, b++, tvector3f += 3)
 217                 {
 218                         LOAD_MATRIX3();
 219                         TRANSFORM_VECTOR(tv, tvector3f);
 220                 }
 221         }
 222 }