Frontends: Add .chd files to open filter

src/duckstation-qt/mainwindow.cpp

@@ -14,7 +14,7 @@
 
 static constexpr char DISC_IMAGE_FILTER[] =
   "All File Types (*.bin *.img *.cue *.exe *.psexe);;Single-Track Raw Images (*.bin *.img);;Cue Sheets "
-  "(*.cue);;PlayStation Executables (*.exe *.psexe)";
+  "(*.cue);;MAME CHD Images (*.chd);;PlayStation Executables (*.exe *.psexe)";
 
 MainWindow::MainWindow(QtHostInterface* host_interface) : QMainWindow(nullptr), m_host_interface(host_interface)
 {

src/duckstation/sdl_host_interface.cpp

@@ -1453,7 +1453,7 @@ void SDLHostInterface::DoStartDisc()
   Assert(!m_system);
 
   nfdchar_t* path = nullptr;
-  if (!NFD_OpenDialog("bin,img,cue,exe,psexe", nullptr, &path) || !path || std::strlen(path) == 0)
+  if (!NFD_OpenDialog("bin,img,cue,chd,exe,psexe", nullptr, &path) || !path || std::strlen(path) == 0)
     return;
 
   AddFormattedOSDMessage(2.0f, "Starting disc from '%s'...", path);
@@ -1489,7 +1489,7 @@ void SDLHostInterface::DoChangeDisc()
   Assert(m_system);
 
   nfdchar_t* path = nullptr;
-  if (!NFD_OpenDialog("bin,img,cue,exe,psexe", nullptr, &path) || !path || std::strlen(path) == 0)
+  if (!NFD_OpenDialog("bin,img,cue,chd,exe,psexe", nullptr, &path) || !path || std::strlen(path) == 0)
     return;
 
   if (m_system->InsertMedia(path))