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// SPDX-License-Identifier: GPL-2.0
/* main.c */
#include <locale.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include "core/dive.h"
#include "core/qt-gui.h"
#include "core/subsurfacestartup.h"
#include "desktop-widgets/mainwindow.h"
#include "desktop-widgets/tab-widgets/maintab.h"
#include "profile-widget/profilewidget2.h"
#include "desktop-widgets/preferences/preferencesdialog.h"
#include "desktop-widgets/diveplanner.h"
#include "core/color.h"
#include "core/qthelper.h"
#include "core/downloadfromdcthread.h" // for fill_computer_list
#include <QStringList>
#include <QApplication>
#include <QLoggingCategory>
#include <QOpenGLContext>
#include <QOffscreenSurface>
#include <QOpenGLFunctions>
#include <QQuickWindow>
#include <git2.h>
static bool filesOnCommandLine = false;
static void validateGL();
static void messageHandler(QtMsgType type, const QMessageLogContext &ctx, const QString &msg);
int main(int argc, char **argv)
{
int i;
bool no_filenames = true;
QLoggingCategory::setFilterRules(QStringLiteral("qt.bluetooth* = true"));
qInstallMessageHandler(messageHandler);
QApplication *application = new QApplication(argc, argv);
(void)application;
QStringList files;
QStringList importedFiles;
QStringList arguments = QCoreApplication::arguments();
subsurface_console_init();
const char *default_directory = system_default_directory();
const char *default_filename = system_default_filename();
subsurface_mkdir(default_directory);
for (i = 1; i < arguments.length(); i++) {
QString a = arguments.at(i);
if (a.isEmpty())
continue;
if (a.at(0) == '-') {
parse_argument(a.toLocal8Bit().data());
continue;
}
if (imported) {
importedFiles.push_back(a);
} else {
no_filenames = false;
files.push_back(a);
}
}
if (subsurface_user_is_root() && !force_root) {
printf("You are running Subsurface as root. This is not recommended.\n");
printf("If you insist to do so, run with option --allow_run_as_root.\n");
exit(0);
}
validateGL();
#if !LIBGIT2_VER_MAJOR && LIBGIT2_VER_MINOR < 22
git_threads_init();
#else
git_libgit2_init();
#endif
/*
* Initialize the random number generator - not really secure as
* this is based only on current time, but it should not matter
* that much in our context. Moreover this is better than
* the constant numbers we used to get before.
*/
qsrand(time(NULL));
setup_system_prefs();
copy_prefs(&default_prefs, &prefs);
fill_profile_color();
fill_computer_list();
parse_xml_init();
taglist_init_global();
init_ui();
if (no_filenames) {
if (prefs.default_file_behavior == LOCAL_DEFAULT_FILE) {
QString defaultFile(prefs.default_filename);
if (!defaultFile.isEmpty())
files.push_back(QString(prefs.default_filename));
} else if (prefs.default_file_behavior == CLOUD_DEFAULT_FILE) {
QString cloudURL;
if (getCloudURL(cloudURL) == 0)
files.push_back(cloudURL);
}
}
MainWindow *m = MainWindow::instance();
filesOnCommandLine = !files.isEmpty() || !importedFiles.isEmpty();
if (verbose && !files.isEmpty())
qDebug() << "loading dive data from" << files;
m->loadFiles(files);
if (verbose && !importedFiles.isEmpty())
qDebug() << "importing dive data from" << importedFiles;
m->importFiles(importedFiles);
if (verbose > 0)
print_files();
if (!quit)
run_ui();
exit_ui();
taglist_free(g_tag_list);
parse_xml_exit();
free((void *)default_directory);
free((void *)default_filename);
subsurface_console_exit();
free_prefs();
return 0;
}
bool haveFilesOnCommandLine()
{
return filesOnCommandLine;
}
#define VALIDATE_GL_PREFIX "validateGL(): "
void validateGL()
{
QString quickBackend = qgetenv("QT_QUICK_BACKEND");
/* an empty QT_QUICK_BACKEND env. variable means OpenGL (default).
* only validate OpenGL; for everything else print out and return.
* https://doc.qt.io/qt-5/qtquick-visualcanvas-adaptations.html
*/
if (!quickBackend.isEmpty()) {
if (verbose) {
qDebug() << QStringLiteral(VALIDATE_GL_PREFIX "'QT_QUICK_BACKEND' is set to '%1'. "
"Skipping validation.").arg(quickBackend).toUtf8().data();
}
return;
}
GLint verMajor = -1, verMinor;
const char *glError = NULL;
QOpenGLContext ctx;
QOffscreenSurface surface;
QOpenGLFunctions *func;
const char *verChar;
float verFloat;
surface.setFormat(ctx.format());
surface.create();
if (!ctx.create()) {
glError = "Cannot create OpenGL context";
goto exit;
}
if (verbose)
qDebug() << QStringLiteral(VALIDATE_GL_PREFIX "created OpenGLContext.").toUtf8().data();
ctx.makeCurrent(&surface);
func = ctx.functions();
if (!func) {
glError = "Cannot obtain QOpenGLFunctions";
goto exit;
}
if (verbose)
qDebug() << QStringLiteral(VALIDATE_GL_PREFIX "obtained QOpenGLFunctions.").toUtf8().data();
// detect version for legacy profiles
verChar = (const char *)func->glGetString(GL_VERSION);
if (verChar) {
// detect GLES, show a warning and return early as we don't handle it's versioning
if (strstr(verChar, " ES ") != NULL) {
qWarning() << QStringLiteral(VALIDATE_GL_PREFIX "WARNING: Detected OpenGL ES!\n"
"Attempting to run with the available profile!\n"
"If this fails try manually setting the environment variable\n"
"'QT_QUICK_BACKEND' with the value of 'software'\n"
"before running Subsurface!\n").toUtf8().data();
return;
}
if (sscanf(verChar, "%f", &verFloat) == 1) {
verMajor = (GLint)verFloat;
verMinor = (GLint)roundf((verFloat - verMajor) * 10.f);
}
}
// attempt to detect version using the newer API
if (verMajor == -1) {
func->glGetIntegerv(GL_MAJOR_VERSION, &verMajor);
func->glGetIntegerv(GL_MINOR_VERSION, &verMinor);
}
if (verMajor == -1) {
glError = "Cannot detect OpenGL version";
goto exit;
}
if (verbose)
qDebug() << QStringLiteral(VALIDATE_GL_PREFIX "detected OpenGL version %1.%2.").arg(verMajor).arg(verMinor).toUtf8().data();
if (verMajor * 10 + verMinor < 21) { // set 2.1 as the minimal version
glError = "OpenGL 2.1 or later is required";
goto exit;
}
exit:
ctx.makeCurrent(NULL);
surface.destroy();
if (glError) {
#if QT_VERSION < QT_VERSION_CHECK(5, 8, 0)
qWarning() << QStringLiteral(VALIDATE_GL_PREFIX "ERROR: %1.\n"
"Cannot automatically fallback to a software renderer!\n"
"Set the environment variable 'QT_QUICK_BACKEND' with the value of 'software'\n"
"before running Subsurface!\n").arg(glError).toUtf8().data();
exit(0);
#else
qWarning() << QStringLiteral(VALIDATE_GL_PREFIX "WARNING: %1. Using a software renderer!").arg(glError).toUtf8().data();
QQuickWindow::setSceneGraphBackend(QSGRendererInterface::Software);
#endif
}
}
// install this message handler primarily so that the Windows build can log to files
void messageHandler(QtMsgType type, const QMessageLogContext &ctx, const QString &msg)
{
Q_UNUSED(ctx);
QByteArray localMsg = msg.toLocal8Bit();
switch (type) {
case QtDebugMsg:
fprintf(stdout, "%s\n", localMsg.constData());
break;
case QtInfoMsg:
fprintf(stdout, "%s\n", localMsg.constData());
break;
case QtWarningMsg:
fprintf(stderr, "%s\n", localMsg.constData());
break;
case QtCriticalMsg:
fprintf(stderr, "%s\n", localMsg.constData());
break;
case QtFatalMsg:
fprintf(stderr, "%s\n", localMsg.constData());
abort();
}
}
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