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Fix a problem when bg_color == fg_color

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Invert the intensity bit if the background_color == foreground_color
This commit is contained in:
Zulkarnine Mahmud 2017-06-22 11:06:17 +09:00 committed by GitHub
parent 365df11427
commit 271fb8ff5e
1 changed files with 24 additions and 3 deletions
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27
googletest/src/gtest.cc
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@ -2979,16 +2979,37 @@ void ColoredPrintf(GTestColor color, const char* fmt, ...) {
CONSOLE_SCREEN_BUFFER_INFO buffer_info; CONSOLE_SCREEN_BUFFER_INFO buffer_info;
GetConsoleScreenBufferInfo(stdout_handle, &buffer_info); GetConsoleScreenBufferInfo(stdout_handle, &buffer_info);
const WORD old_color_attrs = buffer_info.wAttributes; const WORD old_color_attrs = buffer_info.wAttributes;
// Let's reuse the BG // Let's reuse the BG
const WORD background_mask = BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_INTENSITY; const WORD background_mask = BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_INTENSITY;
const WORD foreground_mask = FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_INTENSITY;
const WORD existing_bg = old_color_attrs & background_mask; const WORD existing_bg = old_color_attrs & background_mask;
WORD new_color = GetColorAttribute(color) | existing_bg | FOREGROUND_INTENSITY;
#if 1 // do we really need to waste these cpu cycles every time?
int bg_bitOffset = 0;
WORD bg_mask = background_mask;
while((bg_mask & 0x01) == 0x00) {
bg_mask >>= 1;
++bg_bitOffset;
}
#else
const int bg_bitOffset = 4;
#endif
if (((new_color & background_mask) >> bg_bitOffset) == (new_color & foreground_mask)) {
//revert intensity
new_color ^= FOREGROUND_INTENSITY;
}
// We need to flush the stream buffers into the console before each // We need to flush the stream buffers into the console before each
// SetConsoleTextAttribute call lest it affect the text that is already // SetConsoleTextAttribute call lest it affect the text that is already
// printed but has not yet reached the console. // printed but has not yet reached the console.
fflush(stdout); fflush(stdout);
SetConsoleTextAttribute(stdout_handle, SetConsoleTextAttribute(stdout_handle, new_color);
GetColorAttribute(color) | existing_bg | FOREGROUND_INTENSITY);
vprintf(fmt, args); vprintf(fmt, args);
fflush(stdout); fflush(stdout);