mod_skeletal_animatevertices_generic.c

   1 #include "mod_skeletal_animatevertices_generic.h"
   2
   3 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)
   4 {
   5         // vertex weighted skeletal
   6         int i, k;
   7         float *bonepose;
   8         float *boneposerelative;
   9         const blendweights_t * RESTRICT weights;
  10
  11         //unsigned long long ts = rdtsc();
  12         bonepose = (float *) Mod_Skeletal_AnimateVertices_AllocBuffers(sizeof(float[12]) * (model->num_bones*2 + model->surfmesh.num_blends));
  13         boneposerelative = bonepose + model->num_bones * 12;
  14
  15         Mod_Skeletal_BuildTransforms(model, frameblend, skeleton, bonepose, boneposerelative);
  16
  17         // generate matrices for all blend combinations
  18         weights = model->surfmesh.data_blendweights;
  19         for (i = 0;i < model->surfmesh.num_blends;i++, weights++)
  20         {
  21                 float * RESTRICT b = boneposerelative + 12 * (model->num_bones + i);
  22                 const float * RESTRICT m = boneposerelative + 12 * (unsigned int)weights->index[0];
  23                 float f = weights->influence[0] * (1.0f / 255.0f);
  24                 b[ 0] = f*m[ 0]; b[ 1] = f*m[ 1]; b[ 2] = f*m[ 2]; b[ 3] = f*m[ 3];
  25                 b[ 4] = f*m[ 4]; b[ 5] = f*m[ 5]; b[ 6] = f*m[ 6]; b[ 7] = f*m[ 7];
  26                 b[ 8] = f*m[ 8]; b[ 9] = f*m[ 9]; b[10] = f*m[10]; b[11] = f*m[11];
  27                 for (k = 1;k < 4 && weights->influence[k];k++)
  28                 {
  29                         m = boneposerelative + 12 * (unsigned int)weights->index[k];
  30                         f = weights->influence[k] * (1.0f / 255.0f);
  31                         b[ 0] += f*m[ 0]; b[ 1] += f*m[ 1]; b[ 2] += f*m[ 2]; b[ 3] += f*m[ 3];
  32                         b[ 4] += f*m[ 4]; b[ 5] += f*m[ 5]; b[ 6] += f*m[ 6]; b[ 7] += f*m[ 7];
  33                         b[ 8] += f*m[ 8]; b[ 9] += f*m[ 9]; b[10] += f*m[10]; b[11] += f*m[11];
  34                 }
  35         }
  36
  37 #define LOAD_MATRIX_SCALAR() const float * RESTRICT m = boneposerelative + 12 * (unsigned int)*b
  38
  39 #define LOAD_MATRIX3() \
  40         LOAD_MATRIX_SCALAR()
  41 #define LOAD_MATRIX4() \
  42         LOAD_MATRIX_SCALAR()
  43
  44 #define TRANSFORM_POSITION_SCALAR(in, out) \
  45         (out)[0] = ((in)[0] * m[0] + (in)[1] * m[1] + (in)[2] * m[ 2] + m[3]); \
  46         (out)[1] = ((in)[0] * m[4] + (in)[1] * m[5] + (in)[2] * m[ 6] + m[7]); \
  47         (out)[2] = ((in)[0] * m[8] + (in)[1] * m[9] + (in)[2] * m[10] + m[11]);
  48 #define TRANSFORM_VECTOR_SCALAR(in, out) \
  49         (out)[0] = ((in)[0] * m[0] + (in)[1] * m[1] + (in)[2] * m[ 2]); \
  50         (out)[1] = ((in)[0] * m[4] + (in)[1] * m[5] + (in)[2] * m[ 6]); \
  51         (out)[2] = ((in)[0] * m[8] + (in)[1] * m[9] + (in)[2] * m[10]);
  52
  53 #define TRANSFORM_POSITION(in, out) \
  54         TRANSFORM_POSITION_SCALAR(in, out)
  55 #define TRANSFORM_VECTOR(in, out) \
  56         TRANSFORM_VECTOR_SCALAR(in, out)
  57
  58         // transform vertex attributes by blended matrices
  59         if (vertex3f)
  60         {
  61                 const float * RESTRICT v = model->surfmesh.data_vertex3f;
  62                 const unsigned short * RESTRICT b = model->surfmesh.blends;
  63                 // special case common combinations of attributes to avoid repeated loading of matrices
  64                 if (normal3f)
  65                 {
  66                         const float * RESTRICT n = model->surfmesh.data_normal3f;
  67                         if (svector3f && tvector3f)
  68                         {
  69                                 const float * RESTRICT svec = model->surfmesh.data_svector3f;
  70                                 const float * RESTRICT tvec = model->surfmesh.data_tvector3f;
  71
  72                                 // Note that for SSE each iteration stores one element past end, so we break one vertex short
  73                                 // and handle that with scalars in that case
  74                                 for (i = 0; i < model->surfmesh.num_vertices; i++, v += 3, n += 3, svec += 3, tvec += 3, b++,
  75                                                 vertex3f += 3, normal3f += 3, svector3f += 3, tvector3f += 3)
  76                                 {
  77                                         LOAD_MATRIX4();
  78                                         TRANSFORM_POSITION(v, vertex3f);
  79                                         TRANSFORM_VECTOR(n, normal3f);
  80                                         TRANSFORM_VECTOR(svec, svector3f);
  81                                         TRANSFORM_VECTOR(tvec, tvector3f);
  82                                 }
  83
  84                                 return;
  85                         }
  86
  87                         for (i = 0;i < model->surfmesh.num_vertices; i++, v += 3, n += 3, b++, vertex3f += 3, normal3f += 3)
  88                         {
  89                                 LOAD_MATRIX4();
  90                                 TRANSFORM_POSITION(v, vertex3f);
  91                                 TRANSFORM_VECTOR(n, normal3f);
  92                         }
  93                 }
  94                 else
  95                 {
  96                         for (i = 0;i < model->surfmesh.num_vertices; i++, v += 3, b++, vertex3f += 3)
  97                         {
  98                                 LOAD_MATRIX4();
  99                                 TRANSFORM_POSITION(v, vertex3f);
 100                         }
 101                 }
 102         }
 103
 104         else if (normal3f)
 105         {
 106                 const float * RESTRICT n = model->surfmesh.data_normal3f;
 107                 const unsigned short * RESTRICT b = model->surfmesh.blends;
 108                 for (i = 0; i < model->surfmesh.num_vertices; i++, n += 3, b++, normal3f += 3)
 109                 {
 110                         LOAD_MATRIX3();
 111                         TRANSFORM_VECTOR(n, normal3f);
 112                 }
 113         }
 114
 115         if (svector3f)
 116         {
 117                 const float * RESTRICT svec = model->surfmesh.data_svector3f;
 118                 const unsigned short * RESTRICT b = model->surfmesh.blends;
 119                 for (i = 0; i < model->surfmesh.num_vertices; i++, svec += 3, b++, svector3f += 3)
 120                 {
 121                         LOAD_MATRIX3();
 122                         TRANSFORM_VECTOR(svec, svector3f);
 123                 }
 124         }
 125
 126         if (tvector3f)
 127         {
 128                 const float * RESTRICT tvec = model->surfmesh.data_tvector3f;
 129                 const unsigned short * RESTRICT b = model->surfmesh.blends;
 130                 for (i = 0; i < model->surfmesh.num_vertices; i++, tvec += 3, b++, tvector3f += 3)
 131                 {
 132                         LOAD_MATRIX3();
 133                         TRANSFORM_VECTOR(tvec, tvector3f);
 134                 }
 135         }
 136 }