blend.cpp

Ray tracing on PS3, using the acceleration of PPU, No SPE acceleration is used. The code must be com

  xform_vec3_v(&px_temp, &py_temp, &pz_temp, &pw_temp, p_x, p_y, p_z, (vector float*)&matrix);
  thisID = spu_cmpeq(hp.materialID, spu_splats(id1));
  px_res = spu_sel(px_res, px_temp, thisID);
  py_res = spu_sel(py_res, py_temp, thisID);
  pz_res = spu_sel(pz_res, pz_temp, thisID);
  //pw_res = spu_sel(pw_res, pw_temp, thisID);

  //Do material2's matrix 
  splat_matrix4x4((vector float*)&matrix, &materials[id2].colorDSRT_r);
  xform_vec3_v(&px_temp, &py_temp, &pz_temp, &pw_temp, p_x, p_y, p_z, (vector float*)&matrix);
  thisID = spu_cmpeq(hp.materialID, spu_splats(id2));
  px_res = spu_sel(px_res, px_temp, thisID);
  py_res = spu_sel(py_res, py_temp, thisID);
  pz_res = spu_sel(pz_res, pz_temp, thisID);
  //pw_res = spu_sel(pw_res, pw_temp, thisID);

  //Do material3's matrix 
  splat_matrix4x4((vector float*)&matrix, &materials[id3].colorDSRT_r);
  xform_vec3_v(&px_temp, &py_temp, &pz_temp, &pw_temp, p_x, p_y, p_z, (vector float*)&matrix);
  thisID = spu_cmpeq(hp.materialID, spu_splats(id3));
  px_res = spu_sel(px_res, px_temp, thisID);
  py_res = spu_sel(py_res, py_temp, thisID);
  pz_res = spu_sel(pz_res, pz_temp, thisID);
  //pw_res = spu_sel(pw_res, pw_temp, thisID);

  //Do material4's matrix
  splat_matrix4x4((vector float*)&matrix, &materials[id4].colorDSRT_r);
  xform_vec3_v(&px_temp, &py_temp, &pz_temp, &pw_temp, p_x, p_y, p_z, (vector float*)&matrix);
  thisID = spu_cmpeq(hp.materialID, spu_splats(id4));
  px_res = spu_sel(px_res, px_temp, thisID);
  py_res = spu_sel(py_res, py_temp, thisID);
  pz_res = spu_sel(pz_res, pz_temp, thisID);
  //pw_res = spu_sel(pw_res, pw_temp, thisID);

  union {
    vector unsigned int matTypes;
    struct {
      unsigned int mat1_type;
      unsigned int mat2_type;
      unsigned int mat3_type;
      unsigned int mat4_type;
    };
  };
  
  matTypes = (vector unsigned int)
    {(unsigned int)materials[id1].materialType, 
     (unsigned int)materials[id2].materialType, 
     (unsigned int)materials[id3].materialType, 
     (unsigned int)materials[id4].materialType};
  
  vector unsigned int type_eq_blender = spu_or(spu_cmpeq(spu_splats((unsigned int)MATERIAL_WOOD), matTypes), spu_cmpeq(spu_splats((unsigned int)MATERIAL_MARBLE), matTypes));

  vector unsigned int valid = spu_and(shadeBits, type_eq_blender);
  
  union {
    vector unsigned int functions;
    struct {
      material_shader_blendfactor f1;
      material_shader_blendfactor f2;
      material_shader_blendfactor f3;
      material_shader_blendfactor f4;
    };   
  };
  
  functions = (vector unsigned int){
							(unsigned int)fp_shader[mat1_type].blendfactor,
							(unsigned int)fp_shader[mat2_type].blendfactor,
							(unsigned int)fp_shader[mat3_type].blendfactor,
							(unsigned int)fp_shader[mat4_type].blendfactor};
  
  vector unsigned int zero_i = spu_splats((unsigned int)0);
  vector unsigned int ones_i = spu_splats((unsigned int)1);

  union {
    vector float blendFactors_v;
    struct {
      float blendFactor[4];
    };
  };
  union {
    vector unsigned int materials_v;
    struct {
      material *material1;
      material *material2;
      material *material3;
      material *material4;
    };
  };
  material1 = &materials[id1];
  material2 = &materials[id2];
  material3 = &materials[id3];
  material4 = &materials[id4];

  blendFactors_v = _zero;
  
  thisID = spu_cmpeq(matTypes, spu_splats(mat1_type));
  (*f1)(materials_v, blendFactors_v, px_res, py_res, pz_res, thisID);
  functions = spu_sel(functions, spu_splats((unsigned int)material_getBlendFactorDummy), thisID);
  
  thisID = spu_cmpeq(matTypes, spu_splats(mat2_type));
  (*f2)(materials_v, blendFactors_v, px_res, py_res, pz_res, thisID);
  functions = spu_sel(functions, spu_splats((unsigned int)material_getBlendFactorDummy), thisID);
  
  thisID = spu_cmpeq(matTypes, spu_splats(mat3_type));
  (*f3)(materials_v, blendFactors_v, px_res, py_res, pz_res, thisID);
  functions = spu_sel(functions, spu_splats((unsigned int)material_getBlendFactorDummy), thisID);

  thisID = spu_cmpeq(matTypes, spu_splats(mat4_type));  
  (*f4)(materials_v, blendFactors_v, px_res, py_res, pz_res, thisID);
  //functions = spu_sel(functions, spu_splats((unsigned int)material_getBlendFactorDummy), thisID);
  

  vector unsigned int mat1s = (vector unsigned int){materials[id1].arg1_i, materials[id2].arg1_i, materials[id3].arg1_i, materials[id4].arg1_i};
  vector unsigned int mat2s = (vector unsigned int){materials[id1].arg2_i, materials[id2].arg2_i, materials[id3].arg2_i, materials[id4].arg2_i};
  
  RGBPacket shade1, shade2;
  shade1.r = shade2.r = rgbp.r;
  shade1.g = shade2.g = rgbp.g;
  shade1.b = shade2.b = rgbp.b;

  HitPacket newhp;
  
  newhp.nx = hp.nx;
  newhp.ny = hp.ny;
  newhp.nz = hp.nz;
  newhp.t = hp.t;
  
  newhp.materialID = mat1s;
  newhp.materialID = spu_sel(spu_splats((unsigned int)0), newhp.materialID, valid);
  material_getDiffuseColor(materials, shade1, newhp, p_x, p_y, p_z, valid);
  
  newhp.materialID = mat2s;
  newhp.materialID = spu_sel(spu_splats((unsigned int)0), newhp.materialID, valid);
  material_getDiffuseColor(materials, shade2, newhp, p_x, p_y, p_z, valid);

  // result = (1-t) * v1 + t * v2
  lerp_vec3_v(&shade1.r, &shade1.g, &shade1.b, shade2.r, shade2.g, shade2.b, shade1.r, shade1.g, shade1.b, blendFactors_v);

  rgbp.r = spu_sel(rgbp.r, shade1.r, valid);
  rgbp.g = spu_sel(rgbp.g, shade1.g, valid);
  rgbp.b = spu_sel(rgbp.b, shade1.b, valid);
  
}

MATERIAL_SHADER_REFLECTIVE(material_getBlenderReflectiveColor) {
  dprintf("material_getBlenderReflectiveColor\r\n");
  
  vector float _zero = spu_splats(0.0f);

  union {
    vector unsigned int ids;
    struct {
      unsigned int id1, id2, id3, id4;
    };
  };
  ids = hp.materialID;
   
  vector float px_temp, py_temp, pz_temp, pw_temp;
  vector float px_res, py_res, pz_res;
  px_res = py_res = pz_res =  _zero;
  vector unsigned int thisID;
  vector float matrix[16];

  //Do material1's matrix 
  splat_matrix4x4((vector float*)&matrix, &materials[id1].colorDSRT_r);
  xform_vec3_v(&px_temp, &py_temp, &pz_temp, &pw_temp, p_x, p_y, p_z, (vector float*)&matrix);
  thisID = spu_cmpeq(hp.materialID, spu_splats(id1));
  px_res = spu_sel(px_res, px_temp, thisID);
  py_res = spu_sel(py_res, py_temp, thisID);
  pz_res = spu_sel(pz_res, pz_temp, thisID);
  //pw_res = spu_sel(pw_res, pw_temp, thisID);

  //Do material2's matrix 
  splat_matrix4x4((vector float*)&matrix, &materials[id2].colorDSRT_r);
  xform_vec3_v(&px_temp, &py_temp, &pz_temp, &pw_temp, p_x, p_y, p_z, (vector float*)&matrix);
  thisID = spu_cmpeq(hp.materialID, spu_splats(id2));
  px_res = spu_sel(px_res, px_temp, thisID);
  py_res = spu_sel(py_res, py_temp, thisID);
  pz_res = spu_sel(pz_res, pz_temp, thisID);
  //pw_res = spu_sel(pw_res, pw_temp, thisID);

  //Do material3's matrix 
  splat_matrix4x4((vector float*)&matrix, &materials[id3].colorDSRT_r);
  xform_vec3_v(&px_temp, &py_temp, &pz_temp, &pw_temp, p_x, p_y, p_z, (vector float*)&matrix);
  thisID = spu_cmpeq(hp.materialID, spu_splats(id3));
  px_res = spu_sel(px_res, px_temp, thisID);
  py_res = spu_sel(py_res, py_temp, thisID);
  pz_res = spu_sel(pz_res, pz_temp, thisID);
  //pw_res = spu_sel(pw_res, pw_temp, thisID);

  //Do material4's matrix
  splat_matrix4x4((vector float*)&matrix, &materials[id4].colorDSRT_r);
  xform_vec3_v(&px_temp, &py_temp, &pz_temp, &pw_temp, p_x, p_y, p_z, (vector float*)&matrix);
  thisID = spu_cmpeq(hp.materialID, spu_splats(id4));
  px_res = spu_sel(px_res, px_temp, thisID);
  py_res = spu_sel(py_res, py_temp, thisID);
  pz_res = spu_sel(pz_res, pz_temp, thisID);
  //pw_res = spu_sel(pw_res, pw_temp, thisID);

  union {
    vector unsigned int matTypes;
    struct {
      unsigned int mat1_type;
      unsigned int mat2_type;
      unsigned int mat3_type;
      unsigned int mat4_type;
    };
  };
  
  matTypes = (vector unsigned int)
    {(unsigned int)materials[id1].materialType, 
     (unsigned int)materials[id2].materialType, 
     (unsigned int)materials[id3].materialType, 
     (unsigned int)materials[id4].materialType};
  
  vector unsigned int type_eq_blender = spu_or(spu_cmpeq(spu_splats((unsigned int)MATERIAL_WOOD), matTypes), spu_cmpeq(spu_splats((unsigned int)MATERIAL_MARBLE), matTypes));

  vector unsigned int valid = spu_and(shadeBits, type_eq_blender);
  
  union {
    vector unsigned int functions;
    struct {
      material_shader_blendfactor f1;
      material_shader_blendfactor f2;
      material_shader_blendfactor f3;
      material_shader_blendfactor f4;
    };   
  };
  
  functions = (vector unsigned int){
							(unsigned int)fp_shader[mat1_type].blendfactor,
							(unsigned int)fp_shader[mat2_type].blendfactor,
							(unsigned int)fp_shader[mat3_type].blendfactor,
							(unsigned int)fp_shader[mat4_type].blendfactor};
  
  vector unsigned int zero_i = spu_splats((unsigned int)0);
  vector unsigned int ones_i = spu_splats((unsigned int)1);

  union {
    vector float blendFactors_v;
    struct {
      float blendFactor[4];
    };
  };
  union {
    vector unsigned int materials_v;
    struct {
      material *material1;
      material *material2;
      material *material3;
      material *material4;
    };
  };
  material1 = &materials[id1];
  material2 = &materials[id2];
  material3 = &materials[id3];
  material4 = &materials[id4];

  blendFactors_v = _zero;
  
  thisID = spu_cmpeq(matTypes, spu_splats(mat1_type));
  (*f1)(materials_v, blendFactors_v, px_res, py_res, pz_res, thisID);
  functions = spu_sel(functions, spu_splats((unsigned int)material_getBlendFactorDummy), thisID);
  
  thisID = spu_cmpeq(matTypes, spu_splats(mat2_type));
  (*f2)(materials_v, blendFactors_v, px_res, py_res, pz_res, thisID);
  functions = spu_sel(functions, spu_splats((unsigned int)material_getBlendFactorDummy), thisID);
  
  thisID = spu_cmpeq(matTypes, spu_splats(mat3_type));
  (*f3)(materials_v, blendFactors_v, px_res, py_res, pz_res, thisID);
  functions = spu_sel(functions, spu_splats((unsigned int)material_getBlendFactorDummy), thisID);

  thisID = spu_cmpeq(matTypes, spu_splats(mat4_type));  
  (*f4)(materials_v, blendFactors_v, px_res, py_res, pz_res, thisID);
  //functions = spu_sel(functions, spu_splats((unsigned int)material_getBlendFactorDummy), thisID);
  

  vector unsigned int mat1s = (vector unsigned int){materials[id1].arg1_i, materials[id2].arg1_i, materials[id3].arg1_i, materials[id4].arg1_i};
  vector unsigned int mat2s = (vector unsigned int){materials[id1].arg2_i, materials[id2].arg2_i, materials[id3].arg2_i, materials[id4].arg2_i};
  
  RGBPacket shade1, shade2;
  shade1.r = shade2.r = rgbp.r;
  shade1.g = shade2.g = rgbp.g;
  shade1.b = shade2.b = rgbp.b;

  HitPacket newhp;
  
  newhp.nx = hp.nx;
  newhp.ny = hp.ny;
  newhp.nz = hp.nz;
  newhp.t = hp.t;
  
  newhp.materialID = mat1s;
  newhp.materialID = spu_sel(spu_splats((unsigned int)0), newhp.materialID, valid);
  material_getReflectiveColor(materials, shade1, newhp, p_x, p_y, p_z, valid);
  
  newhp.materialID = mat2s;
  newhp.materialID = spu_sel(spu_splats((unsigned int)0), newhp.materialID, valid);
  material_getReflectiveColor(materials, shade2, newhp, p_x, p_y, p_z, valid);

  // result = (1-t) * v1 + t * v2
  lerp_vec3_v(&shade1.r, &shade1.g, &shade1.b, shade2.r, shade2.g, shade2.b, shade1.r, shade1.g, shade1.b, blendFactors_v);

  rgbp.r = spu_sel(rgbp.r, shade1.r, valid);
  rgbp.g = spu_sel(rgbp.g, shade1.g, valid);
  rgbp.b = spu_sel(rgbp.b, shade1.b, valid);
  
}

MATERIAL_SHADER_TRANSPARENT(material_getBlenderTransparentColor) {
  dprintf("material_getBlenderTransparentColor\r\n");
  
  vector float _zero = spu_splats(0.0f);
  
  union {
    vector unsigned int ids;
    struct {
      unsigned int id1, id2, id3, id4;