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Merge pull request #2476 from yuriks/shader-refactor3

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Oh No! More shader changes!
This commit is contained in:
Yuri Kunde Schlesner 2017-02-04 13:02:48 -08:00 • committed by GitHub
commit 97e06b0a0d
20 changed files with 184 additions and 180 deletions
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33
src/common/bit_set.h
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@ -121,22 +121,19 @@ public:
class Iterator {
public:
Iterator(const Iterator& other) : m_val(other.m_val), m_bit(other.m_bit) {}
Iterator(IntTy val, int bit) : m_val(val), m_bit(bit) {}
Iterator(IntTy val) : m_val(val), m_bit(0) {}
Iterator& operator=(Iterator other) {
new (this) Iterator(other);
return *this;
}
int operator*() {
return m_bit;
return m_bit + ComputeLsb();
}
Iterator& operator++() {
if (m_val == 0) {
m_bit = -1;
} else {
int bit = LeastSignificantSetBit(m_val);
m_val &= ~(1 << bit);
m_bit = bit;
}
int lsb = ComputeLsb();
m_val >>= lsb + 1;
m_bit += lsb + 1;
m_has_lsb = false;
return *this;
}
Iterator operator++(int _) {
@ -145,15 +142,24 @@ public:
return other;
}
bool operator==(Iterator other) const {
return m_bit == other.m_bit;
return m_val == other.m_val;
}
bool operator!=(Iterator other) const {
return m_bit != other.m_bit;
return m_val != other.m_val;
}
private:
int ComputeLsb() {
if (!m_has_lsb) {
m_lsb = LeastSignificantSetBit(m_val);
m_has_lsb = true;
}
return m_lsb;
}
IntTy m_val;
int m_bit;
int m_lsb = -1;
bool m_has_lsb = false;
};
BitSet() : m_val(0) {}
@ -221,11 +227,10 @@ public:
}
Iterator begin() const {
Iterator it(m_val, 0);
return ++it;
return Iterator(m_val);
}
Iterator end() const {
return Iterator(m_val, -1);
return Iterator(0);
}
IntTy m_val;