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Applied mrdoob's optimizations from ascii loader also to binary loader.

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TODO: still could save some more multiplication by precomputing offsets for individual components of the elements.
This commit is contained in:
alteredq
2010-11-11 21:49:29 +01:00
parent 453c6efc0d
commit 1e36ddee47
3 changed files with 111 additions and 100 deletions
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build/Three.js
+2 -2
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build/ThreeDebug.js
+2 -2
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src/io/Loader.js
+107 -96
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@@ -290,13 +290,14 @@ THREE.Loader.prototype = {
function init_vertices( start ) {
var i, x, y, z,
stride = md.vertex_coordinate_bytes * 3;
stride = md.vertex_coordinate_bytes * 3,
end = start + md.nvertices * stride;
for( i = 0; i < md.nvertices; ++i ) {
for( i = start; i < end; i += stride ) {
x = parseFloat32( data, start + i*stride );
y = parseFloat32( data, start + i*stride + md.vertex_coordinate_bytes );
z = parseFloat32( data, start + i*stride + md.vertex_coordinate_bytes*2 );
x = parseFloat32( data, i );
y = parseFloat32( data, i + md.vertex_coordinate_bytes );
z = parseFloat32( data, i + md.vertex_coordinate_bytes*2 );
THREE.Loader.prototype.v( scope, x, y, z );
@@ -309,13 +310,14 @@ THREE.Loader.prototype = {
function init_normals( start ) {
var i, x, y, z,
stride = md.normal_coordinate_bytes * 3;
stride = md.normal_coordinate_bytes * 3.
end = start + md.nnormals * stride;
for( i = 0; i < md.nnormals; ++i ) {
for( i = start; i < end; i += stride ) {
x = parseSChar8( data, start + i*stride );
y = parseSChar8( data, start + i*stride + md.normal_coordinate_bytes );
z = parseSChar8( data, start + i*stride + md.normal_coordinate_bytes*2 );
x = parseSChar8( data, i );
y = parseSChar8( data, i + md.normal_coordinate_bytes );
z = parseSChar8( data, i + md.normal_coordinate_bytes*2 );
normals.push( x/127, y/127, z/127 );
@@ -328,129 +330,130 @@ THREE.Loader.prototype = {
function init_uvs( start ) {
var i, u, v,
stride = md.uv_coordinate_bytes * 2;
stride = md.uv_coordinate_bytes * 2,
end = start + md.nuvs * stride;
for( i = 0; i < md.nuvs; ++i ) {
for( i = start; i < end; i += stride ) {
u = parseFloat32( data, start + i*stride );
v = parseFloat32( data, start + i*stride + md.uv_coordinate_bytes );
u = parseFloat32( data, i );
v = parseFloat32( data, i + md.uv_coordinate_bytes );
uvs.push( u, v );
}
return md.nuvs * stride;
}
function add_tri( start, i, stride ) {
function add_tri( i ) {
var a, b, c, m;
a = parseUInt32( data, start + i*stride );
b = parseUInt32( data, start + i*stride + md.vertex_index_bytes );
c = parseUInt32( data, start + i*stride + md.vertex_index_bytes*2 );
a = parseUInt32( data, i );
b = parseUInt32( data, i + md.vertex_index_bytes );
c = parseUInt32( data, i + md.vertex_index_bytes*2 );
m = parseUInt16( data, start + i*stride + md.vertex_index_bytes*3 );
m = parseUInt16( data, i + md.vertex_index_bytes*3 );
THREE.Loader.prototype.f3( scope, a, b, c, m );
}
function add_tri_n( start, i, stride ) {
function add_tri_n( i ) {
var a, b, c, m, na, nb, nc;
a = parseUInt32( data, start + i*stride );
b = parseUInt32( data, start + i*stride + md.vertex_index_bytes );
c = parseUInt32( data, start + i*stride + md.vertex_index_bytes*2 );
a = parseUInt32( data, i );
b = parseUInt32( data, i + md.vertex_index_bytes );
c = parseUInt32( data, i + md.vertex_index_bytes*2 );
m = parseUInt16( data, start + i*stride + md.vertex_index_bytes*3 );
m = parseUInt16( data, i + md.vertex_index_bytes*3 );
na = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 + md.material_index_bytes );
nb = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 + md.material_index_bytes + md.normal_index_bytes );
nc = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 + md.material_index_bytes + md.normal_index_bytes*2 );
na = parseUInt32( data, i + md.vertex_index_bytes*3 + md.material_index_bytes );
nb = parseUInt32( data, i + md.vertex_index_bytes*3 + md.material_index_bytes + md.normal_index_bytes );
nc = parseUInt32( data, i + md.vertex_index_bytes*3 + md.material_index_bytes + md.normal_index_bytes*2 );
THREE.Loader.prototype.f3n( scope, normals, a, b, c, m, na, nb, nc );
}
function add_quad( start, i, stride ) {
function add_quad( i ) {
var a, b, c, d, m;
a = parseUInt32( data, start + i*stride );
b = parseUInt32( data, start + i*stride + md.vertex_index_bytes );
c = parseUInt32( data, start + i*stride + md.vertex_index_bytes*2 );
d = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 );
a = parseUInt32( data, i );
b = parseUInt32( data, i + md.vertex_index_bytes );
c = parseUInt32( data, i + md.vertex_index_bytes*2 );
d = parseUInt32( data, i + md.vertex_index_bytes*3 );
m = parseUInt16( data, start + i*stride + md.vertex_index_bytes*4 );
m = parseUInt16( data, i + md.vertex_index_bytes*4 );
THREE.Loader.prototype.f4( scope, a, b, c, d, m );
}
function add_quad_n( start, i, stride ) {
function add_quad_n( i ) {
var a, b, c, d, m, na, nb, nc, nd;
a = parseUInt32( data, start + i*stride );
b = parseUInt32( data, start + i*stride + md.vertex_index_bytes );
c = parseUInt32( data, start + i*stride + md.vertex_index_bytes*2 );
d = parseUInt32( data, start + i*stride + md.vertex_index_bytes*3 );
a = parseUInt32( data, i );
b = parseUInt32( data, i + md.vertex_index_bytes );
c = parseUInt32( data, i + md.vertex_index_bytes*2 );
d = parseUInt32( data, i + md.vertex_index_bytes*3 );
m = parseUInt16( data, start + i*stride + md.vertex_index_bytes*4 );
m = parseUInt16( data, i + md.vertex_index_bytes*4 );
na = parseUInt32( data, start + i*stride + md.vertex_index_bytes*4 + md.material_index_bytes );
nb = parseUInt32( data, start + i*stride + md.vertex_index_bytes*4 + md.material_index_bytes + md.normal_index_bytes );
nc = parseUInt32( data, start + i*stride + md.vertex_index_bytes*4 + md.material_index_bytes + md.normal_index_bytes*2 );
nd = parseUInt32( data, start + i*stride + md.vertex_index_bytes*4 + md.material_index_bytes + md.normal_index_bytes*3 );
na = parseUInt32( data, i + md.vertex_index_bytes*4 + md.material_index_bytes );
nb = parseUInt32( data, i + md.vertex_index_bytes*4 + md.material_index_bytes + md.normal_index_bytes );
nc = parseUInt32( data, i + md.vertex_index_bytes*4 + md.material_index_bytes + md.normal_index_bytes*2 );
nd = parseUInt32( data, i + md.vertex_index_bytes*4 + md.material_index_bytes + md.normal_index_bytes*3 );
THREE.Loader.prototype.f4n( scope, normals, a, b, c, d, m, na, nb, nc, nd );
}
function add_uv3( start, i, stride, offset ) {
function add_uv3( i ) {
var uva, uvb, uvc, u1, u2, u3, v1, v2, v3;
uva = parseUInt32( data, start + i*stride + offset );
uvb = parseUInt32( data, start + i*stride + offset + md.uv_index_bytes );
uvc = parseUInt32( data, start + i*stride + offset + md.uv_index_bytes * 2 );
uva = parseUInt32( data, i );
uvb = parseUInt32( data, i + md.uv_index_bytes );
uvc = parseUInt32( data, i + md.uv_index_bytes * 2 );
u1 = uvs[ uva*2 ];
v1 = uvs[ uva*2 + 1];
v1 = uvs[ uva*2 + 1 ];
u2 = uvs[ uvb*2 ];
v2 = uvs[ uvb*2 + 1];
v2 = uvs[ uvb*2 + 1 ];
u3 = uvs[ uvc*2 ];
v3 = uvs[ uvc*2 + 1];
v3 = uvs[ uvc*2 + 1 ];
THREE.Loader.prototype.uv( scope, u1, v1, u2, v2, u3, v3 );
}
function add_uv4( start, i, stride, offset ) {
function add_uv4( i ) {
var uva, uvb, uvc, uvd, u1, u2, u3, u4, v1, v2, v3, v4;
uva = parseUInt32( data, start + i*stride + offset );
uvb = parseUInt32( data, start + i*stride + offset + md.uv_index_bytes );
uvc = parseUInt32( data, start + i*stride + offset + md.uv_index_bytes * 2 );
uvd = parseUInt32( data, start + i*stride + offset + md.uv_index_bytes * 3 );
uva = parseUInt32( data, i );
uvb = parseUInt32( data, i + md.uv_index_bytes );
uvc = parseUInt32( data, i + md.uv_index_bytes * 2 );
uvd = parseUInt32( data, i + md.uv_index_bytes * 3 );
u1 = uvs[ uva*2 ];
v1 = uvs[ uva*2 + 1];
v1 = uvs[ uva*2 + 1 ];
u2 = uvs[ uvb*2 ];
v2 = uvs[ uvb*2 + 1];
v2 = uvs[ uvb*2 + 1 ];
u3 = uvs[ uvc*2 ];
v3 = uvs[ uvc*2 + 1];
v3 = uvs[ uvc*2 + 1 ];
u4 = uvs[ uvd*2 ];
v4 = uvs[ uvd*2 + 1];
v4 = uvs[ uvd*2 + 1 ];
THREE.Loader.prototype.uv( scope, u1, v1, u2, v2, u3, v3, u4, v4 );
@@ -458,120 +461,128 @@ THREE.Loader.prototype = {
function init_triangles_flat( start ) {
var i, stride = md.vertex_index_bytes * 3 + md.material_index_bytes;
var i, stride = md.vertex_index_bytes * 3 + md.material_index_bytes,
end = start + md.ntri_flat * stride;
for( i = 0; i < md.ntri_flat; ++i ) {
for( i = start; i < end; i += stride ) {
add_tri( start, i, stride );
add_tri( i );
}
return md.ntri_flat * stride;
return end - start;
}
function init_triangles_flat_uv( start ) {
var i, offset = md.vertex_index_bytes * 3 + md.material_index_bytes,
stride = offset + md.uv_index_bytes * 3;
stride = offset + md.uv_index_bytes * 3
end = start + md.ntri_flat_uv * stride;
for( i = 0; i < md.ntri_flat_uv; ++i ) {
for( i = start; i < end; i += stride ) {
add_tri( start, i, stride );
add_uv3( start, i, stride, md.vertex_index_bytes*3 + md.material_index_bytes );
add_tri( i );
add_uv3( i + offset );
}
return md.ntri_flat_uv * stride;
return end - start;
}
function init_triangles_smooth( start ) {
var i, stride = md.vertex_index_bytes * 3 + md.material_index_bytes + md.normal_index_bytes * 3;
var i, stride = md.vertex_index_bytes * 3 + md.material_index_bytes + md.normal_index_bytes * 3,
end = start + md.ntri_smooth * stride;
for( i = 0; i < md.ntri_smooth; ++i ) {
for( i = start; i < end; i += stride ) {
add_tri_n( start, i, stride );
add_tri_n( i );
}
return md.ntri_smooth * stride;
return end - start;
}
function init_triangles_smooth_uv( start ) {
var i, offset = md.vertex_index_bytes * 3 + md.material_index_bytes + md.normal_index_bytes * 3,
stride = offset + md.uv_index_bytes * 3;
stride = offset + md.uv_index_bytes * 3,
end = start + md.ntri_smooth_uv * stride;
for( i = 0; i < md.ntri_smooth_uv; ++i ) {
for( i = start; i < end; i += stride ) {
add_tri_n( start, i, stride );
add_uv3( start, i, stride, offset );
add_tri_n( i );
add_uv3( i + offset );
}
return md.ntri_smooth * stride;
return end - start;
}
function init_quads_flat( start ) {
var i, stride = md.vertex_index_bytes * 4 + md.material_index_bytes;
var i, stride = md.vertex_index_bytes * 4 + md.material_index_bytes,
end = start + md.nquad_flat * stride;
for( i = 0; i < md.nquad_flat; ++i ) {
for( i = start; i < end; i += stride ) {
add_quad( start, i, stride );
add_quad( i );
}
return md.nquad_flat * stride;
return end - start;
}
function init_quads_flat_uv( start ) {
var i, offset = md.vertex_index_bytes * 4 + md.material_index_bytes,
stride = offset + md.uv_index_bytes * 4;
stride = offset + md.uv_index_bytes * 4,
end = start + md.nquad_flat_uv * stride;
for( i = 0; i < md.nquad_flat_uv; ++i ) {
for( i = start; i < end; i += stride ) {
add_quad( start, i, stride );
add_uv4( start, i, offset );
add_quad( i );
add_uv4( i + offset );
}
return md.nquad_flat * stride;
return end - start;
}
function init_quads_smooth( start ) {
var i, stride = md.vertex_index_bytes * 4 + md.material_index_bytes + md.normal_index_bytes * 4;
var i, stride = md.vertex_index_bytes * 4 + md.material_index_bytes + md.normal_index_bytes * 4,
end = start + md.nquad_smooth * stride;
for( i = 0; i < md.nquad_smooth; ++i ) {
for( i = start; i < end; i += stride ) {
add_quad_n( start, i, stride );
add_quad_n( i );
}
return md.nquad_smooth * stride;
return end - start;
}
function init_quads_smooth_uv( start ) {
var i, offset = md.vertex_index_bytes * 4 + md.material_index_bytes + md.normal_index_bytes * 4,
stride = offset + md.uv_index_bytes * 4;
stride = offset + md.uv_index_bytes * 4,
end = start + md.nquad_smooth_uv * stride;
for( i = 0; i < md.nquad_smooth_uv; ++i ) {
for( i = start; i < end; i += stride ) {
add_quad_n( start, i, stride );
add_uv4( start, i, stride, offset );
add_quad_n( i );
add_uv4( i + offset );
}
return md.nquad_smooth * stride;
return end - start;
}