feat(src/main): try to optimize opengl context

linphone-desktop/src/components/camera/Camera.cpp

@@ -54,6 +54,7 @@ CameraRenderer::~CameraRenderer () {
 
 QOpenGLFramebufferObject *CameraRenderer::createFramebufferObject (const QSize &size) {
   QOpenGLFramebufferObjectFormat format;
+  format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
   format.setInternalTextureFormat(GL_RGBA8);
   format.setSamples(4);
 

linphone-desktop/src/main.cpp

@@ -30,11 +30,30 @@ using namespace std;
 // =============================================================================
 
 int main (int argc, char *argv[]) {
+  // Disable QML cache. Avoid malformed cache.
   qputenv("QML_DISABLE_DISK_CACHE", "true");
 
+  // Options to get a nice video render.
   QCoreApplication::setAttribute(Qt::AA_UseDesktopOpenGL, true);
   QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts, true);
 
+  {
+    QSurfaceFormat format;
+
+    format.setSwapBehavior(QSurfaceFormat::TripleBuffer);
+    format.setSwapInterval(1);
+
+    format.setRedBufferSize(8);
+    format.setGreenBufferSize(8);
+    format.setBlueBufferSize(8);
+    format.setAlphaBufferSize(8);
+
+    format.setDepthBufferSize(24);
+    format.setStencilBufferSize(8);
+
+    QSurfaceFormat::setDefaultFormat(format);
+  }
+
   App app(argc, argv);
   app.parseArgs();