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Console: Use ANSI escape codes and remove entirely Win32's legacy WriteConsoleA code. 

Also fixes android build failure (missing unistd.h)
This commit is contained in:
Jake Stine 2021-01-07 07:05:33 -08:00
parent c9b8dc13fd
commit f26b094cf7
1 changed files with 26 additions and 88 deletions
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114
src/common/log.cpp
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@ -11,6 +11,7 @@
#include "windows_headers.h"
#elif defined(__ANDROID__)
#include <android/log.h>
#include <unistd.h>
#else
#include <unistd.h>
#endif
@ -140,6 +141,10 @@ static void FormatLogMessageForDisplay(const char* channelName, const char* func
static void StandardOutputLogCallback(void* pUserParam, const char* channelName, const char* functionName,
LOGLEVEL level, const char* message)
{
if (!s_consoleOutputEnabled || level > s_consoleOutputLevelFilter ||
s_consoleOutputChannelFilter.Find(channelName) >= 0)
return;
static const char* const colorCodes[LOGLEVEL_COUNT] = {
"\033[0m", // NONE
"\033[1;31m", // ERROR
@ -260,60 +265,9 @@ bool msw_AllocLegacyConsole()
return true;
}
static void msw_ConsoleOutputLogCallback(void* pUserParam, const char* channelName, const char* functionName,
LOGLEVEL level, const char* message)
{
if (!s_consoleOutputEnabled || level > s_consoleOutputLevelFilter ||
s_consoleOutputChannelFilter.Find(channelName) >= 0)
return;
if (level > LOGLEVEL_COUNT)
level = LOGLEVEL_TRACE;
HANDLE hConsole = GetStdHandle((level <= LOGLEVEL_WARNING) ? STD_ERROR_HANDLE : STD_OUTPUT_HANDLE);
if (hConsole != INVALID_HANDLE_VALUE)
{
static const WORD levelColors[LOGLEVEL_COUNT] = {
FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_GREEN, // NONE
FOREGROUND_RED | FOREGROUND_INTENSITY, // ERROR
FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_INTENSITY, // WARNING
FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY, // PERF
FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_INTENSITY, // INFO
FOREGROUND_GREEN | FOREGROUND_INTENSITY, // VERBOSE
FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_GREEN, // DEV
FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_INTENSITY, // PROFILE
FOREGROUND_GREEN, // DEBUG
FOREGROUND_BLUE, // TRACE
};
CONSOLE_SCREEN_BUFFER_INFO oldConsoleScreenBufferInfo;
GetConsoleScreenBufferInfo(hConsole, &oldConsoleScreenBufferInfo);
SetConsoleTextAttribute(hConsole, levelColors[level]);
// write message in the formatted way
FormatLogMessageForDisplay(
channelName, functionName, level, message,
[](const char* text, void* hConsole) {
DWORD written;
WriteConsoleA(static_cast<HANDLE>(hConsole), text, static_cast<DWORD>(std::strlen(text)), &written, nullptr);
},
(void*)hConsole);
// write newline
DWORD written;
WriteConsoleA(hConsole, "\r\n", 2, &written, nullptr);
// restore color
SetConsoleTextAttribute(hConsole, oldConsoleScreenBufferInfo.wAttributes);
}
}
static void msw_DebugOutputLogCallback(void* pUserParam, const char* channelName, const char* functionName, LOGLEVEL level,
const char* message)
{
if (!s_debugOutputEnabled || level > s_debugOutputLevelFilter || s_debugOutputChannelFilter.Find(channelName) >= 0)
return;
FormatLogMessageForDisplay(
channelName, functionName, level, message, [](const char* text, void*) { OutputDebugStringA(text); }, nullptr);
@ -325,9 +279,6 @@ static void msw_DebugOutputLogCallback(void* pUserParam, const char* channelName
static void android_DebugOutputLogCallback(void* pUserParam, const char* channelName, const char* functionName, LOGLEVEL level,
const char* message)
{
if (!s_debugOutputEnabled || level > s_debugOutputLevelFilter || s_debugOutputChannelFilter.Find(functionName) >= 0)
return;
static const int logPriority[LOGLEVEL_COUNT] = {
ANDROID_LOG_INFO, // NONE
ANDROID_LOG_ERROR, // ERROR
@ -345,30 +296,12 @@ static void android_DebugOutputLogCallback(void* pUserParam, const char* channel
}
#endif
static void PlatformStandardOutputLogCallback(void* pUserParam, const char* channelName, const char* functionName,
LOGLEVEL level, const char* message)
{
#if defined(__ANDROID__)
return;
#endif
if (!s_consoleOutputEnabled || level > s_consoleOutputLevelFilter ||
s_consoleOutputChannelFilter.Find(channelName) >= 0)
return;
#if defined(_WIN32)
if (s_msw_console_allocated) {
msw_ConsoleOutputLogCallback(pUserParam, channelName, functionName, level, message);
}
else {
StandardOutputLogCallback(pUserParam, channelName, functionName, level, message);
}
#endif
}
static void DebugOutputLogCallback(void* pUserParam, const char* channelName, const char* functionName, LOGLEVEL level,
const char* message)
{
if (!s_debugOutputEnabled || level > s_debugOutputLevelFilter || s_debugOutputChannelFilter.Find(channelName) >= 0)
return;
#if defined(_WIN32)
msw_DebugOutputLogCallback(pUserParam, channelName, functionName, level, message);
#endif
@ -390,11 +323,11 @@ void SetConsoleOutputParams(bool Enabled, const char* ChannelFilter, LOGLEVEL Le
s_consoleOutputEnabled = Enabled;
if (Enabled)
RegisterCallback(PlatformStandardOutputLogCallback, NULL);
RegisterCallback(StandardOutputLogCallback, NULL);
else
UnregisterCallback(PlatformStandardOutputLogCallback, NULL);
UnregisterCallback(StandardOutputLogCallback, NULL);
#if defined(WIN32)
#if defined(_WIN32) && !defined(_CONSOLE)
if (Enabled) {
// Windows Console behavior is very tricky, and depends on:
// - Whether the application is built with defined(_CONSOLE) or not.
@ -407,16 +340,21 @@ void SetConsoleOutputParams(bool Enabled, const char* ChannelFilter, LOGLEVEL Le
//
// To maintain some level of personal sanity, I'll disregard all the DLL/CRT caveats for now.
//
// Microsoft CMD.EXE "does us a favor" and DETACHES the standard console pipes when it spawns
// windowed applications, but only if redirections are not specified at the command line.
// This creates all kinds of confusion and havok that could easy fill pages of the screen with
// comments. The TL;DR version is:
// - only call AllocConsole() if the stdout/stderr pipes are DETACHED (null) - this avoids
// clobbering pipe redirections specified from any shell (cmd/bash) and avoids creating
// spurious console windows when running from MSYS/ConEmu/GitBash.
// - Only use Microsoft's over-engineered Console text-coloring APIs if we called AllocConsole,
// because those APIs result in a whole lot of black screen if you call them while attached to
// a terminal app (ConEmu, ConsoleX, etc).
// Console Mode (_CONSOLE) vs Windowed Application
// Microsoft CMD.EXE "does us a favor" and DETACHES the standard console pipes when it spawns
// windowed applications, but only if redirections are not specified at the command line.
// This creates all kinds of confusion and havok that could easy fill pages of the screen with
// comments. The TL;DR version is:
// - only call AllocConsole() if the stdout/stderr pipes are DETACHED (null) - this avoids
// clobbering pipe redirections specified from any shell (cmd/bash) and avoids creating
// spurious console windows when running from MSYS/ConEmu/GitBash.
// - Only use Microsoft's over-engineered Console text-coloring APIs if we called AllocConsole,
// because those APIs result in a whole lot of black screen if you call them while attached to
// a terminal app (ConEmu, ConsoleX, etc).
// - Ignore all of this if defined(_CONSOLE), in that case the OS behavior straightforward and a
// console is always allocated/attached. This is its own annoyance, and thus why few devs use
// it, even for console apps, because actually we DON'T want the console window popping up
// every time we run some console app in the background. --jstine
s_msw_prev_stdin = ::GetStdHandle(STD_INPUT_HANDLE );
s_msw_prev_stdout = ::GetStdHandle(STD_OUTPUT_HANDLE);