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Use as much as possible of the 64b hash in Qt6

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This commit is contained in:
Martin Tůma 2023-05-11 21:31:10 +02:00
parent 9b3c11cc68
commit 60e83b24f9
2 changed files with 8 additions and 9 deletions
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10
src/common/hash.h
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@ -6,13 +6,13 @@
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
#define HASH_T uint
inline uint qHash(const QPoint &p)
{
return qHash(QPair<int, int>(p.x(), p.y()));
}
#else // QT6
#define HASH_T size_t
#endif // QT6
inline HASH_T qHash(const QPoint &p)
{
return ::qHash(p.x()) ^ ::qHash(p.y());
}
#endif // HASH_H

7
src/map/IMG/rgnfile.cpp
View File

@ -1,5 +1,6 @@
#include "common/rectc.h"
#include "common/garmin.h"
#include "common/hash.h"
#include "deltastream.h"
#include "huffmanstream.h"
#include "style.h"
@ -15,10 +16,8 @@ using namespace IMG;
static quint64 pointId(const QPoint &pos, quint32 type)
{
quint64 id;
uint hash = (uint)qHash(QPair<int, int>(pos.x(), pos.y()));
id = ((quint64)type)<<32 | hash;
quint64 hash = qHash(pos);
quint64 id = ((quint64)type)<<40 | (hash & 0xFFFFFFFFFF);
// Increase rendering priorities for some special items
if (!Style::isCountry(type) && !Style::isMarina(type))