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Improve memory reserve policy for Clipboard/ImGuiBuffer
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parent
3a20671802
commit
a372d67f47
14
imgui.cpp
14
imgui.cpp
@ -1195,11 +1195,16 @@ void ImGuiTextBuffer::appendv(const char* fmt, va_list args)
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int len = vsnprintf(NULL, 0, fmt, args); // FIXME-OPT: could do a first pass write attempt, likely successful on first pass.
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if (len <= 0)
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return;
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const size_t write_off = Buf.size();
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if (write_off + (size_t)len >= Buf.capacity())
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Buf.reserve(Buf.capacity() * 2);
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Buf.resize(write_off + (size_t)len);
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const size_t write_off = Buf.size();
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const size_t needed_sz = write_off + (size_t)len;
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if (write_off + (size_t)len >= Buf.capacity())
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{
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const size_t double_capacity = Buf.capacity() * 2;
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Buf.reserve(needed_sz > double_capacity ? needed_sz : double_capacity);
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}
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Buf.resize(needed_sz);
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ImFormatStringV(&Buf[write_off] - 1, (size_t)len+1, fmt, args_copy);
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}
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@ -1844,6 +1849,7 @@ static void LogText(const ImVec2& ref_pos, const char* text, const char* text_en
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const int tree_depth = (window->DC.TreeDepth - g.LogStartDepth);
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while (true)
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{
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// Split the string. Each new line (after a '\n') is followed by spacing corresponding to the current depth of our log entry.
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const char* line_end = text_remaining;
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while (line_end < text_end)
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if (*line_end == '\n')
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