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Speed-up when VT100 escape codes are enabled on the console #60

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Merged
MrcSnm merged 1 commit into from
Nov 24, 2025
Merged

Speed-up when VT100 escape codes are enabled on the console #60

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6 changes: 6 additions & 0 deletions colorize/source/redub/libs/colorize/cwrite.d
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,12 @@ void cwrite(S...)(File f, S args)
{
WinTermEmulation winterm;
winterm.initialize();
if (winterm.supportVT100)
{
f.write(s);
return;
}

foreach(dchar c ; s)
{
auto charAction = winterm.feed(c);
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7 changes: 6 additions & 1 deletion colorize/source/redub/libs/colorize/winterm.d
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Original file line number Diff line number Diff line change
Expand Up @@ -19,12 +19,17 @@ version(Windows)
struct WinTermEmulation
{
public:
@nogc void initialize() nothrow
bool supportVT100; // if true, that whole emulation is useless.

void initialize() nothrow
{
// saves console attributes
_console = GetStdHandle(STD_OUTPUT_HANDLE);
_savedInitialColor = (0 != GetConsoleScreenBufferInfo(_console, &consoleInfo));
_state = State.initial;
uint mode;
if (GetConsoleMode(_console, &mode))
supportVT100 = (mode & ENABLE_VIRTUAL_TERMINAL_INPUT) != 0;
}

@nogc ~this() nothrow
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