Use standard binary multiple unit symbols for game size display.
Use integer math for the calculation as we cannot rely on floats for something as important as game size display!
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@ -152,6 +152,28 @@ float MathFloatVectorSum(const std::vector<float>&);
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#define ROUND_UP(x, a) (((x) + (a) - 1) & ~((a) - 1))
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#define ROUND_DOWN(x, a) ((x) & ~((a) - 1))
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template <typename T>
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T Log2(T val)
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{
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#if defined(_M_X64)
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T result;
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asm
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(
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"bsr %1, %0"
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: "=r"(result)
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: "r"(val)
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);
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return result;
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#else
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T result = -1;
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while (val != 0)
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{
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val >>= 1;
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++result;
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}
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return result;
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#endif
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}
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// Tiny matrix/vector library.
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// Used for things like Free-Look in the gfx backend.
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@ -35,6 +35,7 @@
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#include "CDUtils.h"
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#include "WxUtils.h"
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#include "Main.h"
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#include "MathUtil.h"
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#include "../resources/Flag_Europe.xpm"
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#include "../resources/Flag_Germany.xpm"
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@ -380,26 +381,18 @@ void CGameListCtrl::Update()
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SetFocus();
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}
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wxString NiceSizeFormat(s64 _size)
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wxString NiceSizeFormat(u64 _size)
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{
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const char* sizes[] = {"b", "KB", "MB", "GB", "TB", "PB", "EB"};
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int s = 0;
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int frac = 0;
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const char* const unit_symbols[] = {"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"};
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auto const unit = Log2(std::max<u64>(_size, 1)) / 10;
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auto const unit_size = (1 << (unit * 10));
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// ugly rounding integer math
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auto const value = (_size + unit_size / 2) / unit_size;
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auto const frac = (_size % unit_size * 10 + unit_size / 2) / unit_size % 10;
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while (_size > (s64)1024)
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{
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s++;
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frac = (int)_size & 1023;
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_size /= (s64)1024;
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}
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float f = (float)_size + ((float)frac / 1024.0f);
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wxString NiceString;
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char tempstr[32];
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sprintf(tempstr,"%3.1f %s", f, sizes[s]);
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NiceString = StrToWxStr(tempstr);
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return(NiceString);
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return StrToWxStr(StringFromFormat("%llu.%llu %s", value, frac, unit_symbols[unit]));
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}
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void CGameListCtrl::InsertItemInReportView(long _Index)
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