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- Merge BSP-able polyobjects back into the trunk.

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SVN r2480 (trunk)
This commit is contained in:
Randy Heit 2010-08-01 02:41:56 +00:00
commit 677d07f837
17 changed files with 1171 additions and 739 deletions
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50
src/nodebuild_classify_sse2.cpp
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@ -1,18 +1,16 @@
#ifndef DISABLE_SSE
#include "doomtype.h"
#include "nodebuild.h"
#define FAR_ENOUGH 17179869184.f // 4<<32
// This function is identical to the ClassifyLine2 version. So how does it use SSE2?
// Easy! By explicitly enabling SSE2 in the configuration properties for this one
// file, we can build it with SSE2 enabled without forcing SSE2 on the rest of the
// project.
// You may notice that this function is identical to ClassifyLine2.
// The reason it is SSE2 is because this file is explicitly compiled
// with SSE2 math enabled, but the other files are not.
int FNodeBuilder::ClassifyLineSSE2 (node_t &node, const FPrivSeg *seg, int &sidev1, int &sidev2)
extern "C" int ClassifyLineSSE2 (node_t &node, const FSimpleVert *v1, const FSimpleVert *v2, int sidev[2])
{
const FPrivVert *v1 = &Vertices[seg->v1];
const FPrivVert *v2 = &Vertices[seg->v2];
double d_x1 = double(node.x);
double d_y1 = double(node.y);
double d_dx = double(node.dx);
@ -31,13 +29,13 @@ int FNodeBuilder::ClassifyLineSSE2 (node_t &node, const FPrivSeg *seg, int &side
{
if (s_num2 <= -FAR_ENOUGH)
{
sidev1 = sidev2 = 1;
sidev[0] = sidev[1] = 1;
return 1;
}
if (s_num2 >= FAR_ENOUGH)
{
sidev1 = 1;
sidev2 = -1;
sidev[0] = 1;
sidev[1] = -1;
return -1;
}
nears = 1;
@ -46,13 +44,13 @@ int FNodeBuilder::ClassifyLineSSE2 (node_t &node, const FPrivSeg *seg, int &side
{
if (s_num2 >= FAR_ENOUGH)
{
sidev1 = sidev2 = -1;
sidev[0] = sidev[1] = -1;
return 0;
}
if (s_num2 <= -FAR_ENOUGH)
{
sidev1 = -1;
sidev2 = 1;
sidev[0] = -1;
sidev[1] = 1;
return -1;
}
nears = 1;
@ -70,41 +68,41 @@ int FNodeBuilder::ClassifyLineSSE2 (node_t &node, const FPrivSeg *seg, int &side
double dist = s_num1 * s_num1 * l;
if (dist < SIDE_EPSILON*SIDE_EPSILON)
{
sidev1 = 0;
sidev[0] = 0;
}
else
{
sidev1 = s_num1 > 0.0 ? -1 : 1;
sidev[0] = s_num1 > 0.0 ? -1 : 1;
}
}
else
{
sidev1 = s_num1 > 0.0 ? -1 : 1;
sidev[0] = s_num1 > 0.0 ? -1 : 1;
}
if (nears & 1)
{
double dist = s_num2 * s_num2 * l;
if (dist < SIDE_EPSILON*SIDE_EPSILON)
{
sidev2 = 0;
sidev[1] = 0;
}
else
{
sidev2 = s_num2 > 0.0 ? -1 : 1;
sidev[1] = s_num2 > 0.0 ? -1 : 1;
}
}
else
{
sidev2 = s_num2 > 0.0 ? -1 : 1;
sidev[1] = s_num2 > 0.0 ? -1 : 1;
}
}
else
{
sidev1 = s_num1 > 0.0 ? -1 : 1;
sidev2 = s_num2 > 0.0 ? -1 : 1;
sidev[0] = s_num1 > 0.0 ? -1 : 1;
sidev[1] = s_num2 > 0.0 ? -1 : 1;
}
if ((sidev1 | sidev2) == 0)
if ((sidev[0] | sidev[1]) == 0)
{ // seg is coplanar with the splitter, so use its orientation to determine
// which child it ends up in. If it faces the same direction as the splitter,
// it goes in front. Otherwise, it goes in back.
@ -132,13 +130,15 @@ int FNodeBuilder::ClassifyLineSSE2 (node_t &node, const FPrivSeg *seg, int &side
}
}
}
else if (sidev1 <= 0 && sidev2 <= 0)
else if (sidev[0] <= 0 && sidev[1] <= 0)
{
return 0;
}
else if (sidev1 >= 0 && sidev2 >= 0)
else if (sidev[0] >= 0 && sidev[1] >= 0)
{
return 1;
}
return -1;
}
#endif