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subsurface-desktop-main.cpp
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subsurface-desktop-main.cpp
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// SPDX-License-Identifier: GPL-2.0
/* main.c */
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "core/downloadfromdcthread.h" // for fill_computer_list
#include "core/divelog.h"
#include "core/errorhelper.h"
#include "core/parse.h"
#include "core/qt-gui.h"
#include "core/qthelper.h"
#include "core/subsurfacestartup.h"
#include "core/subsurface-string.h"
#include "core/settings/qPref.h"
#include "core/tag.h"
#include "desktop-widgets/mainwindow.h"
#include "core/checkcloudconnection.h"
#include <QApplication>
#include <QLoggingCategory>
#include <QOffscreenSurface>
#include <QOpenGLContext>
#include <QOpenGLFunctions>
#include <QQuickWindow>
#include <QStringList>
#include <git2.h>
static void validateGL();
static void messageHandler(QtMsgType type, const QMessageLogContext &ctx, const QString &msg);
int main(int argc, char **argv)
{
subsurface_console_init();
qInstallMessageHandler(messageHandler);
if (verbose) /* print the version if the Win32 console_init() code enabled verbose. */
print_version();
bool no_filenames = true;
QLoggingCategory::setFilterRules(QStringLiteral("qt.bluetooth* = true"));
std::unique_ptr<QApplication> app(new QApplication(argc, argv));
std::vector<std::string> files;
std::vector<std::string> importedFiles;
QStringList arguments = QCoreApplication::arguments();
subsurface_mkdir(system_default_directory().c_str());
for (int i = 1; i < arguments.length(); i++) {
std::string a = arguments[i].toStdString();
if (a.empty())
continue;
if (a[0] == '-') {
parse_argument(a.c_str());
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
setup_system_prefs();
prefs = default_prefs;
CheckCloudConnection ccc;
ccc.pickServer();
fill_computer_list();
reset_tank_info_table(tank_info_table);
parse_xml_init();
taglist_init_global();
init_ui();
if (no_filenames) {
if (prefs.default_file_behavior == LOCAL_DEFAULT_FILE) {
if (!prefs.default_filename.empty())
files.push_back(prefs.default_filename);
} else if (prefs.default_file_behavior == CLOUD_DEFAULT_FILE) {
auto cloudURL = getCloudURL();
if (cloudURL)
files.push_back(*cloudURL);
}
}
MainWindow *m = MainWindow::instance();
if (verbose && !files.empty())
report_info("loading dive data from: %s", join(files, std::string(", ")).c_str());
m->loadFiles(files);
if (verbose && !importedFiles.empty())
report_info("importing dive data from %s", join(importedFiles, std::string(", ")).c_str());
m->importFiles(importedFiles);
if (verbose > 0)
print_files();
if (!quit)
run_ui();
exit_ui();
parse_xml_exit();
subsurface_console_exit();
// Sync struct preferences to disk
qPref::sync();
return 0;
}
#define VALIDATE_GL_PREFIX "validateGL(): "
void validateGL()
{
std::string quickBackend = qgetenv("QT_QUICK_BACKEND").toStdString();
/* on macOS with Qt6 (maybe others), things only work with the software backend */
#if defined(Q_OS_MACOS) && QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
if (quickBackend.empty()) {
quickBackend = "software";
qputenv("QT_QUICK_BACKEND", "software");
}
#endif
/* 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.empty()) {
if (verbose) {
report_info(VALIDATE_GL_PREFIX
"'QT_QUICK_BACKEND' is set to '%s'. "
"Skipping validation.", quickBackend.c_str());
}
return;
}
GLint verMajor = -1, verMinor;
const char *glError = NULL;
QOpenGLContext ctx;
QOffscreenSurface surface;
QOpenGLFunctions *func;
const char *verChar;
surface.setFormat(ctx.format());
surface.create();
if (!ctx.create()) {
glError = "Cannot create OpenGL context";
goto exit;
}
if (verbose)
report_info(VALIDATE_GL_PREFIX "created OpenGLContext.");
ctx.makeCurrent(&surface);
func = ctx.functions();
if (!func) {
glError = "Cannot obtain QOpenGLFunctions";
goto exit;
}
if (verbose)
report_info(VALIDATE_GL_PREFIX "obtained QOpenGLFunctions.");
// 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) {
report_error(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");
return;
}
int min, maj;
if (sscanf(verChar, "%d.%d", &maj, &min) == 2) {
verMajor = (GLint)maj;
verMinor = (GLint)min;
}
}
// 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)
report_info(VALIDATE_GL_PREFIX "detected OpenGL version %d.%d.", verMajor, verMinor);
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) {
report_error(VALIDATE_GL_PREFIX "WARNING: %s. Using a software renderer!", glError);
QQuickWindow::setSceneGraphBackend("software");
}
}
// install this message handler primarily so that the Windows build can log to files
void messageHandler(QtMsgType type, const QMessageLogContext &, const QString &msg)
{
QByteArray localMsg = msg.toUtf8();
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();
}
}