SDL: Support Vulkan

src/duckstation-sdl/sdl_util.cpp

@@ -0,0 +1,68 @@
+#include "sdl_util.h"
+#include "common/log.h"
+#include <SDL_syswm.h>
+Log_SetChannel(SDLUtil);
+
+#ifdef __APPLE__
+#include <objc/message.h>
+struct NSView;
+
+static NSView* GetContentViewFromWindow(NSWindow* window)
+{
+  // window.contentView
+  return reinterpret_cast<NSView* (*)(id, SEL)>(objc_msgSend)(reinterpret_cast<id>(window), sel_getUid("contentView"));
+}
+#endif
+
+namespace SDLUtil {
+
+std::optional<WindowInfo> GetWindowInfoForSDLWindow(SDL_Window* window)
+{
+  SDL_SysWMinfo syswm = {};
+  SDL_VERSION(&syswm.version);
+  if (!SDL_GetWindowWMInfo(window, &syswm))
+  {
+    Log_ErrorPrintf("SDL_GetWindowWMInfo failed");
+    return std::nullopt;
+  }
+
+  int window_width, window_height;
+  SDL_GetWindowSize(window, &window_width, &window_height);
+
+  WindowInfo wi;
+  wi.surface_width = static_cast<u32>(window_width);
+  wi.surface_height = static_cast<u32>(window_height);
+  wi.surface_format = WindowInfo::SurfaceFormat::RGB8;
+
+  switch (syswm.subsystem)
+  {
+#ifdef SDL_VIDEO_DRIVER_WINDOWS
+    case SDL_SYSWM_WINDOWS:
+      wi.type = WindowInfo::Type::Win32;
+      wi.window_handle = syswm.info.win.window;
+      break;
+#endif
+
+#ifdef SDL_VIDEO_DRIVER_COCOA
+    case SDL_SYSWM_COCOA:
+      wi.type = WindowInfo::Type::MacOS;
+      wi.window_handle = GetContentViewFromWindow(syswm.info.cocoa.window);
+      break;
+#endif
+
+#ifdef SDL_VIDEO_DRIVER_X11
+    case SDL_SYSWM_X11:
+      wi.type = WindowInfo::Type::X11;
+      wi.window_handle = reinterpret_cast<void*>(static_cast<uintptr_t>(syswm.info.x11.window));
+      wi.display_connection = syswm.info.x11.display;
+      break;
+#endif
+
+    default:
+      Log_ErrorPrintf("Unhandled syswm subsystem %u", static_cast<u32>(syswm.subsystem));
+      return std::nullopt;
+  }
+
+  return wi;
+}
+} // namespace SDLUtil