Write 1.4.0 changelog.

[nageru] / main.cpp

diff --git a/main.cpp b/main.cpp
index a3c3334e798ec2741b2606a4db4745b505663778..e2d2cec4ee42c46f12527c9f29be3972302cb0ea 100644 (file)
--- a/main.cpp
+++ b/main.cpp
@@ -1,19 +1,36 @@
+extern "C" {
+#include <libavformat/avformat.h>
+}
+#include <stdbool.h>
+#include <stdio.h>
 #include <stdlib.h>
-#include <epoxy/gl.h>
-
+#include <sys/mman.h>
+#include <epoxy/gl.h>  // IWYU pragma: keep
 #include <QApplication>
 #include <QCoreApplication>
 #include <QGL>
 #include <QSize>
 #include <QSurfaceFormat>
+#include <string>
 
 #include "context.h"
+#include "flags.h"
+#include "image_input.h"
 #include "mainwindow.h"
 #include "mixer.h"
 
 int main(int argc, char *argv[])
 {
-       setenv("QT_XCB_GL_INTEGRATION", "xcb_egl", 0);
+       parse_flags(argc, argv);
+
+       if (global_flags.va_display.empty() ||
+           global_flags.va_display[0] != '/') {
+               // We normally use EGL for zerocopy, but if we use VA against DRM
+               // instead of against X11, we turn it off, and then don't need EGL.
+               setenv("QT_XCB_GL_INTEGRATION", "xcb_egl", 0);
+       }
+       setlinebuf(stdout);
+       av_register_all();
 
        QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts, true);
        QApplication app(argc, argv);
@@ -24,6 +41,11 @@ int main(int argc, char *argv[])
        fmt.setProfile(QSurfaceFormat::CoreProfile);
        fmt.setMajorVersion(3);
        fmt.setMinorVersion(1);
+
+       // Turn off vsync, since Qt generally gives us at most frame rate
+       // (display frequency) / (number of QGLWidgets active).
+       fmt.setSwapInterval(0);
+
        QSurfaceFormat::setDefaultFormat(fmt);
 
        QGLFormat::setDefaultFormat(QGLFormat::fromSurfaceFormat(fmt));
@@ -31,10 +53,29 @@ int main(int argc, char *argv[])
        global_share_widget = new QGLWidget();
 
        MainWindow mainWindow;
-       mainWindow.resize(QSize(1500, 670));
+       mainWindow.resize(QSize(1500, 850));
        mainWindow.show();
 
+       app.installEventFilter(&mainWindow);  // For white balance color picking.
+
+       // Even on an otherwise unloaded system, it would seem writing the recording
+       // to disk (potentially terabytes of data as time goes by) causes Nageru
+       // to be pushed out of RAM. If we have the right privileges, simply lock us
+       // into memory for better realtime behavior.
+       if (mlockall(MCL_CURRENT | MCL_FUTURE) == -1) {
+               perror("mlockall()");
+               fprintf(stderr, "Failed to lock Nageru into RAM. You probably want to\n");
+               fprintf(stderr, "increase \"memlock\" for your user in limits.conf\n");
+               fprintf(stderr, "for better realtime behavior.\n");
+               uses_mlock = false;
+       } else {
+               uses_mlock = true;
+       }
+
        int rc = app.exec();
        global_mixer->quit();
+       mainWindow.mixer_shutting_down();
+       delete global_mixer;
+       ImageInput::shutdown_updaters();
        return rc;
 }