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Remove emerge and speedup addArea by using memcopy instead of one by one assignment

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This commit is contained in:
sapier 2014-06-09 13:29:22 +02:00
parent d5de0cbf71
commit 8ad83767cf
4 changed files with 83 additions and 112 deletions
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12
src/map.cpp
View File

@ -3551,12 +3551,12 @@ void MapVoxelManipulator::emerge(VoxelArea a, s32 caller_id)
flags |= VMANIP_BLOCK_DATA_INEXIST;
VoxelArea a(p*MAP_BLOCKSIZE, (p+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
// Fill with VOXELFLAG_INEXISTENT
// Fill with VOXELFLAG_NO_DATA
for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
{
s32 i = m_area.index(a.MinEdge.X,y,z);
memset(&m_flags[i], VOXELFLAG_INEXISTENT, MAP_BLOCKSIZE);
memset(&m_flags[i], VOXELFLAG_NO_DATA, MAP_BLOCKSIZE);
}
}
/*else if (block->getNode(0, 0, 0).getContent() == CONTENT_IGNORE)
@ -3601,7 +3601,7 @@ void MapVoxelManipulator::blitBack
v3s16 p(x,y,z);
u8 f = m_flags[m_area.index(p)];
if(f & (VOXELFLAG_NOT_LOADED|VOXELFLAG_INEXISTENT))
if(f & (VOXELFLAG_NO_DATA))
continue;
MapNode &n = m_data[m_area.index(p)];
@ -3655,7 +3655,7 @@ ManualMapVoxelManipulator::~ManualMapVoxelManipulator()
void ManualMapVoxelManipulator::emerge(VoxelArea a, s32 caller_id)
{
// Just create the area so that it can be pointed to
VoxelManipulator::emerge(a, caller_id);
VoxelManipulator::addArea(a);
}
void ManualMapVoxelManipulator::initialEmerge(v3s16 blockpos_min,
@ -3726,12 +3726,12 @@ void ManualMapVoxelManipulator::initialEmerge(v3s16 blockpos_min,
Mark area inexistent
*/
VoxelArea a(p*MAP_BLOCKSIZE, (p+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
// Fill with VOXELFLAG_INEXISTENT
// Fill with VOXELFLAG_NO_DATA
for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
{
s32 i = m_area.index(a.MinEdge.X,y,z);
memset(&m_flags[i], VOXELFLAG_INEXISTENT, MAP_BLOCKSIZE);
memset(&m_flags[i], VOXELFLAG_NO_DATA, MAP_BLOCKSIZE);
}
}
}

111
src/voxel.cpp
View File

@ -71,7 +71,7 @@ void VoxelManipulator::print(std::ostream &o, INodeDefManager *ndef,
v3s16 of = m_area.MinEdge;
o<<"size: "<<em.X<<"x"<<em.Y<<"x"<<em.Z
<<" offset: ("<<of.X<<","<<of.Y<<","<<of.Z<<")"<<std::endl;
for(s32 y=m_area.MaxEdge.Y; y>=m_area.MinEdge.Y; y--)
{
if(em.X >= 3 && em.Y >= 3)
@ -88,10 +88,8 @@ void VoxelManipulator::print(std::ostream &o, INodeDefManager *ndef,
{
u8 f = m_flags[m_area.index(x,y,z)];
char c;
if(f & VOXELFLAG_NOT_LOADED)
if(f & VOXELFLAG_NO_DATA)
c = 'N';
else if(f & VOXELFLAG_INEXISTENT)
c = 'I';
else
{
c = 'X';
@ -149,11 +147,11 @@ void VoxelManipulator::addArea(VoxelArea area)
// Cancel if requested area has zero volume
if(area.getExtent() == v3s16(0,0,0))
return;
// Cancel if m_area already contains the requested area
if(m_area.contains(area))
return;
TimeTaker timer("addArea", &addarea_time);
// Calculate new area
@ -186,28 +184,26 @@ void VoxelManipulator::addArea(VoxelArea area)
assert(new_data);
u8 *new_flags = new u8[new_size];
assert(new_flags);
memset(new_flags, VOXELFLAG_NOT_LOADED, new_size);
memset(new_flags, VOXELFLAG_NO_DATA, new_size);
// Copy old data
s32 old_x_width = m_area.MaxEdge.X - m_area.MinEdge.X + 1;
for(s32 z=m_area.MinEdge.Z; z<=m_area.MaxEdge.Z; z++)
for(s32 y=m_area.MinEdge.Y; y<=m_area.MaxEdge.Y; y++)
for(s32 x=m_area.MinEdge.X; x<=m_area.MaxEdge.X; x++)
{
unsigned int old_index = m_area.index(x,y,z);
// If loaded, copy data and flags
if((m_flags[old_index] & VOXELFLAG_NOT_LOADED) == false)
{
unsigned int new_index = new_area.index(x,y,z);
new_data[new_index] = m_data[old_index];
new_flags[new_index] = m_flags[old_index];
}
unsigned int old_index = m_area.index(m_area.MinEdge.X,y,z);
unsigned int new_index = new_area.index(m_area.MinEdge.X,y,z);
memcpy(&new_data[new_index], &m_data[old_index],
old_x_width * sizeof(MapNode));
memcpy(&new_flags[new_index], &m_flags[old_index],
old_x_width * sizeof(u8));
}
// Replace area, data and flags
m_area = new_area;
MapNode *old_data = m_data;
u8 *old_flags = m_flags;
@ -216,7 +212,7 @@ void VoxelManipulator::addArea(VoxelArea area)
m_data = new_data;
m_flags = new_flags;
if(old_data)
delete[] old_data;
if(old_flags)
@ -225,7 +221,7 @@ void VoxelManipulator::addArea(VoxelArea area)
//dstream<<"addArea done"<<std::endl;
}
void VoxelManipulator::copyFrom(MapNode *src, VoxelArea src_area,
void VoxelManipulator::copyFrom(MapNode *src, const VoxelArea& src_area,
v3s16 from_pos, v3s16 to_pos, v3s16 size)
{
for(s16 z=0; z<size.Z; z++)
@ -238,7 +234,7 @@ void VoxelManipulator::copyFrom(MapNode *src, VoxelArea src_area,
}
}
void VoxelManipulator::copyTo(MapNode *dst, VoxelArea dst_area,
void VoxelManipulator::copyTo(MapNode *dst, const VoxelArea& dst_area,
v3s16 dst_pos, v3s16 from_pos, v3s16 size)
{
for(s16 z=0; z<size.Z; z++)
@ -252,7 +248,6 @@ void VoxelManipulator::copyTo(MapNode *dst, VoxelArea dst_area,
i_dst++;
i_local++;
}
//memcpy(&dst[i_dst], &m_data[i_local], size.X*sizeof(MapNode));
}
}
@ -314,22 +309,22 @@ void VoxelManipulator::unspreadLight(enum LightBank bank, v3s16 p, u8 oldlight,
v3s16(0,-1,0), // bottom
v3s16(-1,0,0), // left
};
emerge(VoxelArea(p - v3s16(1,1,1), p + v3s16(1,1,1)));
addArea(VoxelArea(p - v3s16(1,1,1), p + v3s16(1,1,1)));
// Loop through 6 neighbors
for(u16 i=0; i<6; i++)
{
// Get the position of the neighbor node
v3s16 n2pos = p + dirs[i];
u32 n2i = m_area.index(n2pos);
if(m_flags[n2i] & VOXELFLAG_INEXISTENT)
if(m_flags[n2i] & VOXELFLAG_NO_DATA)
continue;
MapNode &n2 = m_data[n2i];
/*
If the neighbor is dimmer than what was specified
as oldlight (the light of the previous node)
@ -347,9 +342,9 @@ void VoxelManipulator::unspreadLight(enum LightBank bank, v3s16 p, u8 oldlight,
*/
n2.setLight(bank, 0, nodemgr);
unspreadLight(bank, n2pos, light2, light_sources, nodemgr);
/*
Remove from light_sources if it is there
NOTE: This doesn't happen nearly at all
@ -391,7 +386,7 @@ void VoxelManipulator::unspreadLight(enum LightBank bank,
{
if(from_nodes.size() == 0)
return;
for(std::map<v3s16, u8>::iterator j = from_nodes.begin();
j != from_nodes.end(); ++j)
{
@ -430,10 +425,10 @@ void VoxelManipulator::unspreadLight(enum LightBank bank,
v3s16(0,-1,0), // bottom
v3s16(-1,0,0), // left
};
if(from_nodes.size() == 0)
return;
core::map<v3s16, u8> unlighted_nodes;
core::map<v3s16, u8>::Iterator j;
j = from_nodes.getIterator();
@ -441,26 +436,26 @@ void VoxelManipulator::unspreadLight(enum LightBank bank,
for(; j.atEnd() == false; j++)
{
v3s16 pos = j.getNode()->getKey();
emerge(VoxelArea(pos - v3s16(1,1,1), pos + v3s16(1,1,1)));
addArea(VoxelArea(pos - v3s16(1,1,1), pos + v3s16(1,1,1)));
//MapNode &n = m_data[m_area.index(pos)];
u8 oldlight = j.getNode()->getValue();
// Loop through 6 neighbors
for(u16 i=0; i<6; i++)
{
// Get the position of the neighbor node
v3s16 n2pos = pos + dirs[i];
u32 n2i = m_area.index(n2pos);
if(m_flags[n2i] & VOXELFLAG_INEXISTENT)
if(m_flags[n2i] & VOXELFLAG_NO_DATA)
continue;
MapNode &n2 = m_data[n2i];
/*
If the neighbor is dimmer than what was specified
as oldlight (the light of the previous node)
@ -480,7 +475,7 @@ void VoxelManipulator::unspreadLight(enum LightBank bank,
n2.setLight(bank, 0);
unlighted_nodes.insert(n2pos, current_light);
/*
Remove from light_sources if it is there
NOTE: This doesn't happen nearly at all
@ -502,7 +497,7 @@ void VoxelManipulator::unspreadLight(enum LightBank bank,
<<blockchangecount<<" times"
<<" for "<<from_nodes.size()<<" nodes"
<<std::endl;*/
if(unlighted_nodes.size() > 0)
unspreadLight(bank, unlighted_nodes, light_sources);
}
@ -520,11 +515,11 @@ void VoxelManipulator::spreadLight(enum LightBank bank, v3s16 p,
v3s16(-1,0,0), // left
};
emerge(VoxelArea(p - v3s16(1,1,1), p + v3s16(1,1,1)));
addArea(VoxelArea(p - v3s16(1,1,1), p + v3s16(1,1,1)));
u32 i = m_area.index(p);
if(m_flags[i] & VOXELFLAG_INEXISTENT)
if(m_flags[i] & VOXELFLAG_NO_DATA)
return;
MapNode &n = m_data[i];
@ -537,16 +532,16 @@ void VoxelManipulator::spreadLight(enum LightBank bank, v3s16 p,
{
// Get the position of the neighbor node
v3s16 n2pos = p + dirs[i];
u32 n2i = m_area.index(n2pos);
if(m_flags[n2i] & VOXELFLAG_INEXISTENT)
if(m_flags[n2i] & VOXELFLAG_NO_DATA)
continue;
MapNode &n2 = m_data[n2i];
u8 light2 = n2.getLight(bank, nodemgr);
/*
If the neighbor is brighter than the current node,
add to list (it will light up this node on its turn)
@ -583,7 +578,7 @@ void VoxelManipulator::spreadLight(enum LightBank bank,
{
if(from_nodes.size() == 0)
return;
core::map<v3s16, bool> lighted_nodes;
core::map<v3s16, bool>::Iterator j;
j = from_nodes.getIterator();
@ -616,7 +611,7 @@ void VoxelManipulator::spreadLight(enum LightBank bank,
if(from_nodes.size() == 0)
return;
std::set<v3s16> lighted_nodes;
for(std::set<v3s16>::iterator j = from_nodes.begin();
@ -624,11 +619,11 @@ void VoxelManipulator::spreadLight(enum LightBank bank,
{
v3s16 pos = *j;
emerge(VoxelArea(pos - v3s16(1,1,1), pos + v3s16(1,1,1)));
addArea(VoxelArea(pos - v3s16(1,1,1), pos + v3s16(1,1,1)));
u32 i = m_area.index(pos);
if(m_flags[i] & VOXELFLAG_INEXISTENT)
if(m_flags[i] & VOXELFLAG_NO_DATA)
continue;
MapNode &n = m_data[i];
@ -641,18 +636,18 @@ void VoxelManipulator::spreadLight(enum LightBank bank,
{
// Get the position of the neighbor node
v3s16 n2pos = pos + dirs[i];
try
{
u32 n2i = m_area.index(n2pos);
if(m_flags[n2i] & VOXELFLAG_INEXISTENT)
if(m_flags[n2i] & VOXELFLAG_NO_DATA)
continue;
MapNode &n2 = m_data[n2i];
u8 light2 = n2.getLight(bank, nodemgr);
/*
If the neighbor is brighter than the current node,
add to list (it will light up this node on its turn)
@ -685,7 +680,7 @@ void VoxelManipulator::spreadLight(enum LightBank bank,
<<blockchangecount<<" times"
<<" for "<<from_nodes.size()<<" nodes"
<<std::endl;*/
if(lighted_nodes.size() > 0)
spreadLight(bank, lighted_nodes, nodemgr);
}

68
src/voxel.h
View File

@ -320,10 +320,10 @@ public:
v3s16 MaxEdge;
};
// Hasn't been copied from source (emerged)
#define VOXELFLAG_NOT_LOADED (1<<0)
// Checked as being inexistent in source
#define VOXELFLAG_INEXISTENT (1<<1)
// unused
#define VOXELFLAG_UNUSED (1<<0)
// no data about that node
#define VOXELFLAG_NO_DATA (1<<1)
// Algorithm-dependent
#define VOXELFLAG_CHECKED1 (1<<2)
// Algorithm-dependent
@ -356,8 +356,8 @@ public:
}
bool isValidPosition(v3s16 p)
{
emerge(p);
return !(m_flags[m_area.index(p)] & VOXELFLAG_INEXISTENT);
addArea(p);
return !(m_flags[m_area.index(p)] & VOXELFLAG_NO_DATA);
}*/
/*
@ -366,9 +366,9 @@ public:
*/
MapNode getNode(v3s16 p)
{
emerge(p);
addArea(p);
if(m_flags[m_area.index(p)] & VOXELFLAG_INEXISTENT)
if(m_flags[m_area.index(p)] & VOXELFLAG_NO_DATA)
{
/*dstream<<"EXCEPT: VoxelManipulator::getNode(): "
<<"p=("<<p.X<<","<<p.Y<<","<<p.Z<<")"
@ -383,9 +383,9 @@ public:
}
MapNode getNodeNoEx(v3s16 p)
{
emerge(p);
addArea(p);
if(m_flags[m_area.index(p)] & VOXELFLAG_INEXISTENT)
if(m_flags[m_area.index(p)] & VOXELFLAG_NO_DATA)
{
return MapNode(CONTENT_IGNORE);
}
@ -396,12 +396,12 @@ public:
{
if(m_area.contains(p) == false)
return MapNode(CONTENT_IGNORE);
if(m_flags[m_area.index(p)] & VOXELFLAG_INEXISTENT)
if(m_flags[m_area.index(p)] & VOXELFLAG_NO_DATA)
return MapNode(CONTENT_IGNORE);
return m_data[m_area.index(p)];
}
// Stuff explodes if non-emerged area is touched with this.
// Emerge first, and check VOXELFLAG_INEXISTENT if appropriate.
// Emerge first, and check VOXELFLAG_NO_DATA if appropriate.
MapNode & getNodeRefUnsafe(v3s16 p)
{
return m_data[m_area.index(p)];
@ -413,12 +413,12 @@ public:
bool exists(v3s16 p)
{
return m_area.contains(p) &&
!(getFlagsRefUnsafe(p) & VOXELFLAG_INEXISTENT);
!(getFlagsRefUnsafe(p) & VOXELFLAG_NO_DATA);
}
MapNode & getNodeRef(v3s16 p)
{
emerge(p);
if(getFlagsRefUnsafe(p) & VOXELFLAG_INEXISTENT)
addArea(p);
if(getFlagsRefUnsafe(p) & VOXELFLAG_NO_DATA)
{
/*dstream<<"EXCEPT: VoxelManipulator::getNode(): "
<<"p=("<<p.X<<","<<p.Y<<","<<p.Z<<")"
@ -432,11 +432,10 @@ public:
}
void setNode(v3s16 p, const MapNode &n)
{
emerge(p);
addArea(p);
m_data[m_area.index(p)] = n;
m_flags[m_area.index(p)] &= ~VOXELFLAG_INEXISTENT;
m_flags[m_area.index(p)] &= ~VOXELFLAG_NOT_LOADED;
m_flags[m_area.index(p)] &= ~VOXELFLAG_NO_DATA;
}
// TODO: Should be removed and replaced with setNode
void setNodeNoRef(v3s16 p, const MapNode &n)
@ -446,12 +445,12 @@ public:
/*void setExists(VoxelArea a)
{
emerge(a);
addArea(a);
for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
for(s32 x=a.MinEdge.X; x<=a.MaxEdge.X; x++)
{
m_flags[m_area.index(x,y,z)] &= ~VOXELFLAG_INEXISTENT;
m_flags[m_area.index(x,y,z)] &= ~VOXELFLAG_NO_DATA;
}
}*/
@ -459,7 +458,7 @@ public:
{
//dstream<<"operator[] p=("<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;
if(isValidPosition(p) == false)
emerge(VoxelArea(p));
addArea(VoxelArea(p));
return m_data[m_area.index(p)];
}*/
@ -506,11 +505,11 @@ public:
Copy data and set flags to 0
dst_area.getExtent() <= src_area.getExtent()
*/
void copyFrom(MapNode *src, VoxelArea src_area,
void copyFrom(MapNode *src, const VoxelArea& src_area,
v3s16 from_pos, v3s16 to_pos, v3s16 size);
// Copy data
void copyTo(MapNode *dst, VoxelArea dst_area,
void copyTo(MapNode *dst, const VoxelArea& dst_area,
v3s16 dst_pos, v3s16 from_pos, v3s16 size);
/*
@ -535,29 +534,6 @@ public:
Virtual functions
*/
/*
Get the contents of the requested area from somewhere.
Shall touch only nodes that have VOXELFLAG_NOT_LOADED
Shall reset VOXELFLAG_NOT_LOADED
If not found from source, add with VOXELFLAG_INEXISTENT
*/
virtual void emerge(VoxelArea a, s32 caller_id=-1)
{
//dstream<<"emerge p=("<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;
addArea(a);
for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
for(s32 x=a.MinEdge.X; x<=a.MaxEdge.X; x++)
{
s32 i = m_area.index(x,y,z);
// Don't touch nodes that have already been loaded
if(!(m_flags[i] & VOXELFLAG_NOT_LOADED))
continue;
m_flags[i] = VOXELFLAG_INEXISTENT;
}
}
/*
Member variables
*/

4
src/voxelalgorithms.cpp
View File

@ -46,7 +46,7 @@ void clearLightAndCollectSources(VoxelManipulator &v, VoxelArea a,
VoxelArea required_a = a;
required_a.pad(v3s16(0,0,0));
// Make sure we have access to it
v.emerge(a);
v.addArea(a);
for(s32 x=a.MinEdge.X; x<=a.MaxEdge.X; x++)
for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
@ -85,7 +85,7 @@ SunlightPropagateResult propagateSunlight(VoxelManipulator &v, VoxelArea a,
VoxelArea required_a = a;
required_a.pad(v3s16(0,1,0));
// Make sure we have access to it
v.emerge(a);
v.addArea(a);
s16 max_y = a.MaxEdge.Y;
s16 min_y = a.MinEdge.Y;