mirror of
https://github.com/subsurface/subsurface.git
synced 2024-12-12 03:51:29 +00:00
540cba07f3
The memory management and string concatenation was hard to follow. Since the mobile files ios.cpp and android.cpp were already converted to C++, let's do the same for Unix, Windows and MacOS. Simply store the default directory and filename in a function-level static string. Thus, it will be initialized on first call and freed on application exit. Since the std::string data is guaranteed to be contiguous and zero-terminated, it can be used from C code. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
238 lines
6.7 KiB
C++
238 lines
6.7 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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/* main.c */
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#include <locale.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include "core/downloadfromdcthread.h" // for fill_computer_list
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#include "core/divelog.h"
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#include "core/errorhelper.h"
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#include "core/parse.h"
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#include "core/qt-gui.h"
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#include "core/qthelper.h"
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#include "core/subsurfacestartup.h"
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#include "core/settings/qPref.h"
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#include "core/tag.h"
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#include "desktop-widgets/mainwindow.h"
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#include "core/checkcloudconnection.h"
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#include <QApplication>
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#include <QLoggingCategory>
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#include <QOffscreenSurface>
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#include <QOpenGLContext>
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#include <QOpenGLFunctions>
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#include <QQuickWindow>
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#include <QStringList>
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#include <git2.h>
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static bool filesOnCommandLine = false;
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static void validateGL();
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static void messageHandler(QtMsgType type, const QMessageLogContext &ctx, const QString &msg);
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int main(int argc, char **argv)
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{
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subsurface_console_init();
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qInstallMessageHandler(messageHandler);
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if (verbose) /* print the version if the Win32 console_init() code enabled verbose. */
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print_version();
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int i;
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bool no_filenames = true;
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QLoggingCategory::setFilterRules(QStringLiteral("qt.bluetooth* = true"));
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std::unique_ptr<QApplication> app(new QApplication(argc, argv));
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QStringList files;
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QStringList importedFiles;
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QStringList arguments = QCoreApplication::arguments();
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const char *default_directory = system_default_directory();
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subsurface_mkdir(default_directory);
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for (i = 1; i < arguments.length(); i++) {
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QString a = arguments.at(i);
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if (a.isEmpty())
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continue;
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if (a.at(0) == '-') {
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parse_argument(qPrintable(a));
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continue;
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}
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if (imported) {
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importedFiles.push_back(a);
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} else {
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no_filenames = false;
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files.push_back(a);
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}
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}
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if (subsurface_user_is_root() && !force_root) {
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printf("You are running Subsurface as root. This is not recommended.\n");
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printf("If you insist to do so, run with option --allow_run_as_root.\n");
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exit(0);
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}
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validateGL();
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#if !LIBGIT2_VER_MAJOR && LIBGIT2_VER_MINOR < 22
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git_threads_init();
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#else
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git_libgit2_init();
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#endif
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setup_system_prefs();
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copy_prefs(&default_prefs, &prefs);
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CheckCloudConnection ccc;
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ccc.pickServer();
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fill_computer_list();
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reset_tank_info_table(&tank_info_table);
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parse_xml_init();
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taglist_init_global();
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init_ui();
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if (no_filenames) {
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if (prefs.default_file_behavior == LOCAL_DEFAULT_FILE) {
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QString defaultFile(prefs.default_filename);
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if (!defaultFile.isEmpty())
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files.push_back(QString(prefs.default_filename));
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} else if (prefs.default_file_behavior == CLOUD_DEFAULT_FILE) {
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QString cloudURL;
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if (getCloudURL(cloudURL) == 0)
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files.push_back(cloudURL);
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}
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}
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MainWindow *m = MainWindow::instance();
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filesOnCommandLine = !files.isEmpty() || !importedFiles.isEmpty();
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if (verbose && !files.isEmpty())
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qDebug() << "loading dive data from" << files;
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m->loadFiles(files);
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if (verbose && !importedFiles.isEmpty())
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qDebug() << "importing dive data from" << importedFiles;
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m->importFiles(importedFiles);
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if (verbose > 0)
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print_files();
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if (!quit)
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run_ui();
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exit_ui();
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clear_divelog(&divelog);
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taglist_free(g_tag_list);
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parse_xml_exit();
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subsurface_console_exit();
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// Sync struct preferences to disk
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qPref::sync();
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free_prefs();
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clear_tank_info_table(&tank_info_table);
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return 0;
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}
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#define VALIDATE_GL_PREFIX "validateGL(): "
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void validateGL()
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{
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QString quickBackend = qgetenv("QT_QUICK_BACKEND");
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/* on macOS with Qt6 (maybe others), things only work with the software backend */
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#if defined(Q_OS_MACOS) && QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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if (quickBackend.isEmpty()) {
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quickBackend = QStringLiteral("software");
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qputenv("QT_QUICK_BACKEND", "software");
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}
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#endif
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/* an empty QT_QUICK_BACKEND env. variable means OpenGL (default).
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* only validate OpenGL; for everything else print out and return.
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* https://doc.qt.io/qt-5/qtquick-visualcanvas-adaptations.html
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*/
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if (!quickBackend.isEmpty()) {
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if (verbose) {
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qDebug() << QStringLiteral(VALIDATE_GL_PREFIX
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"'QT_QUICK_BACKEND' is set to '%1'. "
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"Skipping validation.")
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.arg(quickBackend);
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}
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return;
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}
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GLint verMajor = -1, verMinor;
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const char *glError = NULL;
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QOpenGLContext ctx;
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QOffscreenSurface surface;
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QOpenGLFunctions *func;
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const char *verChar;
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surface.setFormat(ctx.format());
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surface.create();
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if (!ctx.create()) {
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glError = "Cannot create OpenGL context";
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goto exit;
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}
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if (verbose)
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qDebug() << QStringLiteral(VALIDATE_GL_PREFIX "created OpenGLContext.");
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ctx.makeCurrent(&surface);
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func = ctx.functions();
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if (!func) {
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glError = "Cannot obtain QOpenGLFunctions";
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goto exit;
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}
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if (verbose)
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qDebug() << QStringLiteral(VALIDATE_GL_PREFIX "obtained QOpenGLFunctions.");
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// detect version for legacy profiles
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verChar = (const char *)func->glGetString(GL_VERSION);
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if (verChar) {
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// detect GLES, show a warning and return early as we don't handle it's versioning
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if (strstr(verChar, " ES ") != NULL) {
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qWarning() << QStringLiteral(VALIDATE_GL_PREFIX
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"WARNING: Detected OpenGL ES!\n"
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"Attempting to run with the available profile!\n"
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"If this fails try manually setting the environment variable\n"
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"'QT_QUICK_BACKEND' with the value of 'software'\n"
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"before running Subsurface!\n");
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return;
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}
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int min, maj;
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if (sscanf(verChar, "%d.%d", &maj, &min) == 2) {
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verMajor = (GLint)maj;
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verMinor = (GLint)min;
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}
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}
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// attempt to detect version using the newer API
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if (verMajor == -1) {
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func->glGetIntegerv(GL_MAJOR_VERSION, &verMajor);
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func->glGetIntegerv(GL_MINOR_VERSION, &verMinor);
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}
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if (verMajor == -1) {
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glError = "Cannot detect OpenGL version";
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goto exit;
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}
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if (verbose)
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qDebug() << QStringLiteral(VALIDATE_GL_PREFIX "detected OpenGL version %1.%2.").arg(verMajor).arg(verMinor);
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if (verMajor * 10 + verMinor < 21) { // set 2.1 as the minimal version
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glError = "OpenGL 2.1 or later is required";
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goto exit;
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}
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exit:
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ctx.makeCurrent(NULL);
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surface.destroy();
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if (glError) {
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qWarning() << QStringLiteral(VALIDATE_GL_PREFIX "WARNING: %1. Using a software renderer!").arg(glError);
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QQuickWindow::setSceneGraphBackend("software");
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}
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}
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// install this message handler primarily so that the Windows build can log to files
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void messageHandler(QtMsgType type, const QMessageLogContext &, const QString &msg)
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{
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QByteArray localMsg = msg.toUtf8();
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switch (type) {
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case QtDebugMsg:
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fprintf(stdout, "%s\n", localMsg.constData());
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break;
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case QtInfoMsg:
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fprintf(stdout, "%s\n", localMsg.constData());
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break;
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case QtWarningMsg:
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fprintf(stderr, "%s\n", localMsg.constData());
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break;
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case QtCriticalMsg:
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fprintf(stderr, "%s\n", localMsg.constData());
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break;
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case QtFatalMsg:
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fprintf(stderr, "%s\n", localMsg.constData());
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abort();
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}
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}
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