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astc: Move Popcnt to an anonymous namespace and make it constexpr
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@ -25,6 +25,19 @@
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#include "video_core/textures/astc.h"
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namespace {
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/// Count the number of bits set in a number.
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constexpr u32 Popcnt(u32 n) {
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u32 c = 0;
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for (; n; c++) {
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n &= n - 1;
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}
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return c;
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}
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} // Anonymous namespace
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class InputBitStream {
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public:
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explicit InputBitStream(const unsigned char* ptr, int start_offset = 0)
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@ -212,15 +225,6 @@ public:
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return totalBits;
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}
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// Count the number of bits set in a number.
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static inline u32 Popcnt(u32 n) {
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u32 c;
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for (c = 0; n; c++) {
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n &= n - 1;
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}
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return c;
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}
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// Returns a new instance of this struct that corresponds to the
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// can take no more than maxval values
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static IntegerEncodedValue CreateEncoding(u32 maxVal) {
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