From 3a9e975a7130960942cc3bd1eab4e0b3ff62897d Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Thu, 27 Oct 2022 19:36:56 +0200
Subject: [PATCH] [dxgi] Implement DxgiSurfaceFactory

---
 src/d3d11/meson.build     |  1 +
 src/dxgi/dxgi_surface.cpp | 45 +++++++++++++++++++++++++++++++++++++++
 src/dxgi/dxgi_surface.h   | 43 +++++++++++++++++++++++++++++++++++++
 src/dxgi/meson.build      |  1 +
 4 files changed, 90 insertions(+)
 create mode 100644 src/dxgi/dxgi_surface.cpp
 create mode 100644 src/dxgi/dxgi_surface.h

diff --git a/src/d3d11/meson.build b/src/d3d11/meson.build
index f231fcf49..6067f7697 100644
--- a/src/d3d11/meson.build
+++ b/src/d3d11/meson.build
@@ -3,6 +3,7 @@ d3d11_res = wrc_generator.process('version.rc')
 dxgi_common_src = [
   '../dxgi/dxgi_format.cpp',
   '../dxgi/dxgi_monitor.cpp',
+  '../dxgi/dxgi_surface.cpp',
   '../dxgi/dxgi_swapchain.cpp',
 ]
 
diff --git a/src/dxgi/dxgi_surface.cpp b/src/dxgi/dxgi_surface.cpp
new file mode 100644
index 000000000..d18abd648
--- /dev/null
+++ b/src/dxgi/dxgi_surface.cpp
@@ -0,0 +1,45 @@
+#include "dxgi_surface.h"
+
+#include "../wsi/wsi_window.h"
+
+namespace dxvk {
+
+  DxgiSurfaceFactory::DxgiSurfaceFactory(PFN_vkGetInstanceProcAddr vulkanLoaderProc, HWND hWnd)
+  : m_vkGetInstanceProcAddr(vulkanLoaderProc), m_window(hWnd) {
+
+  }
+
+
+  DxgiSurfaceFactory::~DxgiSurfaceFactory() {
+
+  }
+
+
+  HRESULT STDMETHODCALLTYPE DxgiSurfaceFactory::QueryInterface(
+          REFIID                  riid,
+          void**                  ppvObject) {
+    if (ppvObject == nullptr)
+      return E_POINTER;
+
+    *ppvObject = nullptr;
+
+    if (riid == __uuidof(IUnknown)
+     || riid == __uuidof(IDXGIVkSurfaceFactory)) {
+      *ppvObject = ref(this);
+      return S_OK;
+    }
+
+    Logger::warn("DxgiSurfaceFactory::QueryInterface: Unknown interface query");
+    Logger::warn(str::format(riid));
+    return E_NOINTERFACE;
+  }
+
+
+  VkResult STDMETHODCALLTYPE DxgiSurfaceFactory::CreateSurface(
+          VkInstance                Instance,
+          VkPhysicalDevice          Adapter,
+          VkSurfaceKHR*             pSurface) {
+    return wsi::createSurface(m_window, m_vkGetInstanceProcAddr, Instance, pSurface);
+  }
+  
+}
\ No newline at end of file
diff --git a/src/dxgi/dxgi_surface.h b/src/dxgi/dxgi_surface.h
new file mode 100644
index 000000000..25a845fdd
--- /dev/null
+++ b/src/dxgi/dxgi_surface.h
@@ -0,0 +1,43 @@
+#pragma once
+
+#include "../util/com/com_object.h"
+
+#include "../vulkan/vulkan_loader.h"
+
+#include "dxgi_interfaces.h"
+
+namespace dxvk {
+
+  /**
+   * \brief Surface factory
+   *
+   * Provides a way to transparently create a
+   * Vulkan surface for a given platform window.
+   */
+  class DxgiSurfaceFactory : public ComObject<IDXGIVkSurfaceFactory> {
+
+  public:
+
+    DxgiSurfaceFactory(
+            PFN_vkGetInstanceProcAddr vulkanLoaderProc,
+            HWND                      hWnd);
+
+    ~DxgiSurfaceFactory();
+
+    HRESULT STDMETHODCALLTYPE QueryInterface(
+            REFIID                    riid,
+            void**                    ppvObject);
+
+    VkResult STDMETHODCALLTYPE CreateSurface(
+            VkInstance                Instance,
+            VkPhysicalDevice          Adapter,
+            VkSurfaceKHR*             pSurface);
+
+  private:
+
+    PFN_vkGetInstanceProcAddr m_vkGetInstanceProcAddr;
+    HWND                      m_window;
+
+  };
+  
+}
\ No newline at end of file
diff --git a/src/dxgi/meson.build b/src/dxgi/meson.build
index f0c1b2e9c..a6e83b54e 100644
--- a/src/dxgi/meson.build
+++ b/src/dxgi/meson.build
@@ -9,6 +9,7 @@ dxgi_src = [
   'dxgi_monitor.cpp',
   'dxgi_options.cpp',
   'dxgi_output.cpp',
+  'dxgi_surface.cpp',
   'dxgi_swapchain.cpp',
 ]