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Use parallel ENC maps data loading in ENC atlases

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This commit is contained in:
Martin Tůma 2024-06-09 13:34:13 +02:00
parent 8b51f3ff04
commit 1186cb104b
4 changed files with 66 additions and 33 deletions
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56
src/map/ENC/atlasdata.cpp
View File

@ -2,45 +2,71 @@
using namespace ENC;
bool AtlasData::pointCb(const QString *map, void *context)
bool AtlasData::pointCb(MapEntry *map, void *context)
{
PointCTX *ctx = (PointCTX*)context;
ctx->lock.lock();
start:
ctx->cacheLock.lock();
MapData *cached = ctx->cache.object(map);
MapData *cached = ctx->cache.object(map->path);
if (!cached) {
MapData *data = new MapData(*map);
ctx->cacheLock.unlock();
if (map->lock.tryLock()) {
MapData *data = new MapData(map->path);
data->points(ctx->rect, ctx->points);
ctx->cache.insert(map, data);
ctx->cacheLock.lock();
ctx->cache.insert(map->path, data);
map->lock.unlock();
} else {
map->lock.lock();
map->lock.unlock();
goto start;
}
} else
cached->points(ctx->rect, ctx->points);
ctx->lock.unlock();
ctx->cacheLock.unlock();
return true;
}
bool AtlasData::polyCb(const QString *map, void *context)
bool AtlasData::polyCb(MapEntry *map, void *context)
{
PolyCTX *ctx = (PolyCTX*)context;
ctx->lock.lock();
start:
ctx->cacheLock.lock();
MapData *cached = ctx->cache.object(map);
MapData *cached = ctx->cache.object(map->path);
if (!cached) {
MapData *data = new MapData(*map);
ctx->cacheLock.unlock();
if (map->lock.tryLock()) {
MapData *data = new MapData(map->path);
data->polygons(ctx->rect, ctx->polygons);
data->lines(ctx->rect, ctx->lines);
ctx->cache.insert(map, data);
ctx->cacheLock.lock();
ctx->cache.insert(map->path, data);
map->lock.unlock();
} else {
map->lock.lock();
map->lock.unlock();
goto start;
}
} else {
cached->polygons(ctx->rect, ctx->polygons);
cached->lines(ctx->rect, ctx->lines);
}
ctx->lock.unlock();
ctx->cacheLock.unlock();
return true;
}
@ -61,14 +87,14 @@ void AtlasData::addMap(const RectC &bounds, const QString &path)
max[0] = bounds.right();
max[1] = bounds.top();
_tree.Insert(min, max, new QString(path));
_tree.Insert(min, max, new MapEntry(path));
}
void AtlasData::polys(const RectC &rect, QList<MapData::Poly> *polygons,
QList<MapData::Line> *lines)
{
double min[2], max[2];
PolyCTX polyCtx(rect, polygons, lines, _cache, _lock);
PolyCTX polyCtx(rect, polygons, lines, _cache, _cacheLock);
min[0] = rect.left();
min[1] = rect.bottom();
@ -81,7 +107,7 @@ void AtlasData::polys(const RectC &rect, QList<MapData::Poly> *polygons,
void AtlasData::points(const RectC &rect, QList<MapData::Point> *points)
{
double min[2], max[2];
PointCTX pointCtx(rect, points, _cache, _lock);
PointCTX pointCtx(rect, points, _cache, _cacheLock);
min[0] = rect.left();
min[1] = rect.bottom();

33
src/map/ENC/atlasdata.h
View File

@ -8,13 +8,13 @@
namespace ENC {
typedef QCache<const QString*, MapData> MapCache;
typedef QCache<QString, MapData> MapCache;
class AtlasData
{
public:
AtlasData(MapCache &cache, QMutex &lock)
: _cache(cache), _lock(lock) {}
AtlasData(MapCache &cache, QMutex &cacheLock)
: _cache(cache), _cacheLock(cacheLock) {}
~AtlasData();
void addMap(const RectC &bounds, const QString &path);
@ -24,40 +24,47 @@ public:
void points(const RectC &rect, QList<MapData::Point> *points);
private:
typedef RTree<const QString*, double, 2> MapTree;
struct MapEntry {
MapEntry(const QString &path) : path(path) {}
QString path;
QMutex lock;
};
typedef RTree<MapEntry*, double, 2> MapTree;
struct PolyCTX
{
PolyCTX(const RectC &rect, QList<MapData::Poly> *polygons,
QList<MapData::Line> *lines, MapCache &cache, QMutex &lock)
QList<MapData::Line> *lines, MapCache &cache, QMutex &cacheLock)
: rect(rect), polygons(polygons), lines(lines), cache(cache),
lock(lock) {}
cacheLock(cacheLock) {}
const RectC &rect;
QList<MapData::Poly> *polygons;
QList<MapData::Line> *lines;
MapCache &cache;
QMutex &lock;
QMutex &cacheLock;
};
struct PointCTX
{
PointCTX(const RectC &rect, QList<MapData::Point> *points,
MapCache &cache, QMutex &lock) : rect(rect), points(points),
cache(cache), lock(lock) {}
MapCache &cache, QMutex &cacheLock)
: rect(rect), points(points), cache(cache), cacheLock(cacheLock) {}
const RectC &rect;
QList<MapData::Point> *points;
MapCache &cache;
QMutex &lock;
QMutex &cacheLock;
};
static bool polyCb(const QString *map, void *context);
static bool pointCb(const QString *map, void *context);
static bool polyCb(MapEntry *map, void *context);
static bool pointCb(MapEntry *map, void *context);
MapTree _tree;
MapCache &_cache;
QMutex &_lock;
QMutex &_cacheLock;
};
}

2
src/map/encatlas.cpp
View File

@ -113,7 +113,7 @@ void ENCAtlas::addMap(const QDir &dir, const QByteArray &file,
IntendedUsage iu = usage(path);
auto it = _data.find(iu);
if (it == _data.end())
it = _data.insert(iu, new AtlasData(_cache, _lock));
it = _data.insert(iu, new AtlasData(_cache, _cacheLock));
it.value()->addMap(bounds, path);

2
src/map/encatlas.h
View File

@ -89,7 +89,7 @@ private:
QMap<IntendedUsage, ENC::AtlasData*> _data;
ENC::Style *_style;
ENC::MapCache _cache;
QMutex _lock;
QMutex _cacheLock;
IntendedUsage _usage;
int _zoom;