Support for Windows platform

.vscode/launch.json

@@ -5,7 +5,7 @@
   "version": "0.2.0",
   "configurations": [
     {
-      "name": "(gdb) Launch",
+      "name": "Debug demo - Linux",
       "type": "cppdbg",
       "request": "launch",
       "program": "${workspaceFolder}/out/debug/demo",
@@ -23,6 +23,18 @@
         }
       ]
       "preLaunchTask": "Build project",
+    },
+    {
+      "name": "Debug demo - Windows",
+      "type": "cppvsdbg",
+      "request": "launch",
+      "program": "${workspaceFolder}\\out\\debug\\demo.exe",
+      "args": [],
+      "stopAtEntry": false,
+      "cwd": "${workspaceFolder}\\out\\debug",
+      "environment": [],
+      "externalConsole": false,
+      "preLaunchTask": "Build project",
     }
-  ]
+ ]
 }

README.md

@@ -1,21 +1,20 @@
 # Kaliber
 
 A simple, cross-platform 2D game engine with OpenGL and Vulkan renderers.
-Supports Linux and Android platforms.
+Supports Linux, Windows and Android platforms.
 This is a personal hobby project. I've published a little game on
 [Google Play](https://play.google.com/store/apps/details?id=com.woom.game)
 based on this engine. Full game code and assets are included in this repository.
 
 ## Pre-requisites:
 
-**GN build system** is required for all platforms except Android (support for
+**GN build system** is required for all platforms except Android:\
-APKs, Java code etc. is to be added to the GN configuration). \
+https://gn.googlesource.com/gn/
-Building GN from source:
-https://gn.googlesource.com/gn/ \
-Pre-built GN binaries:
-https://chrome-infra-packages.appspot.com/p/gn/gn/
 
-Linux is the supported host platform to build Android. **Gradle**,
+**Build Tools** is required to build for Windows. if you prefer, you can install
+**Visual Studio** which includes the **Build Tools**.
+
+Linux is the supported host platform to build for Android. **Gradle**,
 **Android SDK** and **NDK** are required. If you prefer, you can install
 **Android Studio** which includes all the requirements.
 
@@ -25,7 +24,7 @@ Linux is the supported host platform to build Android. **Gradle**,
 Setup:
 ```text
 gn gen out/release
-gn gen --args='is_debug=true' out/debug
+gn gen --args="is_debug=true" out/debug
 ```
 Building and running:
 ```text
@@ -33,6 +32,9 @@ ninja -C out/debug
 ./out/debug/hello_world
 ./out/debug/demo
 ```
+Building and debugging from VS Code:
+* Select "Debug demo - [platform]" from the "Run and Debug" drop down.
+* Press F5.
 ### Android:
 ```text
 cd build/android

build/BUILD.gn

@@ -164,6 +164,14 @@ config("release") {
   }
 }
 
+config("third_party_warnings") {
+  if (is_win) {
+    cflags = [
+      "/wd4242",  # tmp:conversion from 'int' to 'uint8_t'
+    ]
+  }
+}
+
 config("warnings") {
   if (is_win) {
     cflags = [
@@ -173,7 +181,9 @@ config("warnings") {
       # Disable the following warnings:
       "/wd4061",  # enumerator in switch with a default case not explicitly
                   # handled by a case label.
-      "/wd4100",  # unreferenced format parameter.
+      "/wd4100",  # nonstandard extension used: nameless struct/union.
+      "/wd4201",  # enumerator in switch with a default case not explicitly
+                  # handled by a case label.
       "/wd4324",  # structure was padded due to alignment specifier
       "/wd4371",  # layout of class may have changed from a previous version of
                   # the compiler due to better packing of member
@@ -185,53 +195,59 @@ config("warnings") {
                   # switch specified.
 
       # TODO: Not sure how I feel about these conversion warnings.
+      "/Wv:18",
+      "/wd4191",  # 'type cast': unsafe conversion
       "/wd4244",  # conversion, possible loss of data. 'int' to 'float'
-      "/wd4267",  # conversion, possible loss of data.
+      "/wd4245",  # tmp:conversion from 'int' to 'const unsigned int'
+      # "/wd4267",  # conversion, possible loss of data.
       "/wd4305",  # truncation from 'double' to 'float'.
       "/wd4365",  # conversion, signed/unsigned mismatch.
-      "/wd5219",  # conversion, possible loss of data. 'int' to 'float'
+      # "/wd5219",  # conversion, possible loss of data. 'int' to 'float'
+      "/wd4722",  # destructor never returns, potential memory leak
+      "/wd4702",  # unreachable code
 
       # Possible compiler bug? Needs investigation.
       "/wd4668",  # '__STDC_WANT_SECURE_LIB__' is not defined as a preprocessor
                   # macro, replacing with '0' for '#if/#elif'
 
       # TODO:
-      "/wd4263",  # member function does not override any base class virtual
+      # "/wd4263",  # member function does not override any base class virtual
                   # member function
-      "/wd4264",  # no override available for virtual member function, function
+      # "/wd4264",  # no override available for virtual member function, function
                   # is hidden
-      "/wd4266",  # no override available for virtual member function from base,
+      # "/wd4266",  # no override available for virtual member function from base,
                   # function is hidden
-      "/wd4355",  # 'this' used in base member initializer list
+      # "/wd4355",  # 'this' used in base member initializer list
-      "/wd4457",  # declaration hides function parameter
+      # "/wd4457",  # declaration hides function parameter
-      "/wd4464",  # relative include path contains '..'.
+      # "/wd4464",  # relative include path contains '..'.
       "/wd4625",  # copy constructor was implicitly defined as deleted
       "/wd4626",  # assignment operator was implicitly defined as deleted
-      "/wd4706",  # assignment withing conditional expression.
+      # "/wd4706",  # assignment withing conditional expression.
-      "/wd4774",  # format string expected in argument X is not a string literal
+      # "/wd4774",  # format string expected in argument X is not a string literal
-      "/wd4828",  # The file contains a character that is illegal in the current
+      # "/wd4828",  # The file contains a character that is illegal in the current
                   # source character set
-      "/wd4946",  # reinterpret_cast used between related
+      # "/wd4946",  # reinterpret_cast used between related
-      "/wd5026",  # move constructor was implicitly defined as deleted
+      # "/wd5026",  # move constructor was implicitly defined as deleted
-      "/wd5027",  # move assignment operator was implicitly defined as deleted
+      # "/wd5027",  # move assignment operator was implicitly defined as deleted
-      "/wd5039",  # pointer or reference to potentially throwing function passed
+      # "/wd5039",  # pointer or reference to potentially throwing function passed
                   # to 'extern "C"' function under -EHc. Undefined behavior may
                   # occur if this function throws an exception.
 
       # TODO: I don't understand these or how to fix them:
-      "/wd4458",  # declaration hides class member
+      # "/wd4458",  # declaration hides class member
                   # [ GameObject::rtti ]
-      "/wd4582",  # constructor is not implicitly called
+      # "/wd4582",  # constructor is not implicitly called
                   # [ intersection.h Contact ]
-      "/wd4623",  # default constructor was implicitly defined as deleted
+      # "/wd4623",  # default constructor was implicitly defined as deleted
                   # [ intersection.h Contact ]
-      "/wd5243",  # using incomplete class can cause potential one definition
+      # "/wd5243",  # using incomplete class can cause potential one definition
                   # rule violation due to ABI limitation
     ]
 
     defines = [
       "_CRT_NONSTDC_NO_DEPRECATE",
       "_SILENCE_CXX17_STRSTREAM_DEPRECATION_WARNING",
+      "_SILENCE_ALL_CXX17_DEPRECATION_WARNINGS",
     ]
   } else if (is_mac) {
     cflags = [

build/android/app/CMakeLists.txt

@@ -134,9 +134,11 @@ add_library(kaliber SHARED
     ../../../src/third_party/glslang/SPIRV/SPVRemapper.cpp
     ../../../src/third_party/glslang/SPIRV/SpvTools.cpp
     ../../../src/third_party/jsoncpp/jsoncpp.cpp
+    ../../../src/third_party/minimp3/minimp3.cc
     ../../../src/third_party/minizip/ioapi.c
     ../../../src/third_party/minizip/unzip.c
     ../../../src/third_party/spirv-reflect/spirv_reflect.c
+    ../../../src/third_party/stb/stb_image.cc
     ../../../src/third_party/texture_compressor/dxt_encoder_internals.cc
     ../../../src/third_party/texture_compressor/dxt_encoder.cc
     ../../../src/third_party/texture_compressor/texture_compressor_etc1.cc

build/toolchain/gcc/BUILD.gn

@@ -54,7 +54,7 @@ toolchain("gcc") {
   }
 
   if (is_apple) {
-    not_needed([ "ar" ]) # libtool is used instead.
+    not_needed([ "ar" ])  # libtool is used instead.
   }
 
   tool("alink") {

src/base/log.cc

@@ -2,6 +2,9 @@
 
 #if defined(__ANDROID__)
 #include <android/log.h>
+#elif defined(_WIN32)
+#include <windows.h>
+#include <format>
 #else
 #include <cstdio>
 #endif
@@ -30,17 +33,22 @@ LogMessage::LogMessage(const char* file, int line, int verbosity_level)
 
 LogMessage::~LogMessage() {
   stream_ << std::endl;
-  std::string text(stream_.str());
+  std::string message(stream_.str());
   std::string filename(file_);
   size_t last_slash_pos = filename.find_last_of("\\/");
   if (last_slash_pos != std::string::npos)
     filename = filename.substr(last_slash_pos + 1);
 #if defined(__ANDROID__)
   __android_log_print(ANDROID_LOG_ERROR, "kaliber", "%d [%s:%d] %s",
-                      verbosity_level_, filename.c_str(), line_, text.c_str());
+                      verbosity_level_, filename.c_str(), line_,
+                      message.c_str());
+#elif defined(_WIN32)
+  OutputDebugStringA(
+      std::format("{} [{}:{}] {}", verbosity_level_, filename, line_, message)
+          .c_str());
 #else
   printf("%d [%s:%d] %s", verbosity_level_, filename.c_str(), line_,
-         text.c_str());
+         message.c_str());
 #endif
 }
 

src/base/vecmath.h

@@ -1247,8 +1247,8 @@ class Matrix4 {
                            T fov_aspect,
                            T width,
                            T height,
-                           T near,
+                           T near_plane,
-                           T far) {
+                           T far_plane) {
     // Calc x and y scale from FOV.
     T scale =
         T(2.0) /
@@ -1257,8 +1257,8 @@ class Matrix4 {
     T x_scale = y_scale / (width / height);
     _M_SET_ROW(0, x_scale / T(2.0), 0, 0, 0);
     _M_SET_ROW(1, 0, (-y_scale) / T(2.0), 0, 0);
-    _M_SET_ROW(2, 0, 0, far / (far - near), 1);
+    _M_SET_ROW(2, 0, 0, far_plane / (far_plane - near_plane), 1);
-    _M_SET_ROW(3, 0, 0, -near * far / (far - near), 0);
+    _M_SET_ROW(3, 0, 0, -near_plane * far_plane / (far_plane - near_plane), 0);
   }
 
   void CreateTranslation(const Vector3<T>& t) {

src/demo/player.cc

@@ -2,6 +2,7 @@
 
 #include "base/interpolation.h"
 #include "base/log.h"
+#include "base/vecmath.h"
 #include "engine/asset/font.h"
 #include "engine/engine.h"
 #include "engine/input_event.h"

src/engine/BUILD.gn

@@ -59,14 +59,16 @@ source_set("engine") {
     "sound_player.h",
   ]
 
-  ldflags = []
   libs = []
 
+  if (target_os == "linux" || target_os == "win") {
+    sources += [ "platform/asset_file_generic.cc" ]
+  }
+
   if (target_os == "linux") {
     sources += [
       "audio/audio_sink_alsa.cc",
       "audio/audio_sink_alsa.h",
-      "platform/asset_file_linux.cc",
       "platform/platform_linux.cc",
       "renderer/opengl/renderer_opengl_linux.cc",
       "renderer/vulkan/renderer_vulkan_linux.cc",
@@ -80,6 +82,22 @@ source_set("engine") {
     ]
   }
 
+  if (target_os == "win") {
+    sources += [
+      "audio/audio_sink_null.h",
+      "platform/platform_win.cc",
+      "renderer/opengl/renderer_opengl_win.cc",
+      "renderer/vulkan/renderer_vulkan_win.cc",
+      "renderer/vulkan/vulkan_context_win.cc",
+    ]
+
+    libs = [
+      "gdi32.lib",  # Graphics
+      "user32.lib",  # Win32 API core functionality.
+      "opengl32.lib",
+    ]
+  }
+
   deps = [
     "//assets/engine",
     "//src/base",

src/engine/asset/image.cc

@@ -12,12 +12,7 @@
 #include "third_party/texture_compressor/texture_compressor.h"
 
 // Use aligned memory for SIMD in texture compressor.
-#define STB_IMAGE_IMPLEMENTATION
 #define STBI_NO_STDIO
-#define STBI_MALLOC(sz) base::AlignedAlloc(sz, 16)
-#define STBI_REALLOC_SIZED(p, oldsz, newsz) \
-  base::AlignedRealloc(p, oldsz, newsz, 16)
-#define STBI_FREE(p) base::AlignedFree(p)
 #include "third_party/stb/stb_image.h"
 
 using namespace base;

src/engine/asset/sound.cc

@@ -3,11 +3,8 @@
 #include <array>
 
 #include "base/log.h"
-#define MINIMP3_ONLY_MP3
-#define MINIMP3_ONLY_SIMD
 #define MINIMP3_FLOAT_OUTPUT
 #define MINIMP3_NO_STDIO
-#define MINIMP3_IMPLEMENTATION
 #include "engine/engine.h"
 #include "engine/platform/asset_file.h"
 #include "third_party/minimp3/minimp3_ex.h"

src/engine/audio/audio_mixer.cc

@@ -11,6 +11,8 @@
 #include "engine/audio/audio_sink_oboe.h"
 #elif defined(__linux__)
 #include "engine/audio/audio_sink_alsa.h"
+#elif defined(_WIN32)
+#include "engine/audio/audio_sink_null.h"
 #endif
 
 using namespace base;
@@ -23,6 +25,9 @@ AudioMixer::AudioMixer()
       audio_sink_{std::make_unique<AudioSinkOboe>(this)} {
 #elif defined(__linux__)
       audio_sink_{std::make_unique<AudioSinkAlsa>(this)} {
+#elif defined(_WIN32)
+      // TODO: Implement AudioSinkWindows
+      audio_sink_{std::make_unique<AudioSinkNull>()} {
 #endif
   bool res = audio_sink_->Initialize();
   CHECK(res) << "Failed to initialize audio sink.";

src/engine/audio/audio_sink_null.h

@@ -0,0 +1,23 @@
+#ifndef ENGINE_AUDIO_AUDIO_SINK_NULL_H
+#define ENGINE_AUDIO_AUDIO_SINK_NULL_H
+
+#include "engine/audio/audio_sink.h"
+
+namespace eng {
+
+class AudioSinkNull final : public AudioSink {
+ public:
+  AudioSinkNull() = default;
+  ~AudioSinkNull() final = default;
+
+  bool Initialize() final { return true; }
+
+  void Suspend() final {}
+  void Resume() final {}
+
+  size_t GetHardwareSampleRate() final { return 0; }
+};
+
+}  // namespace eng
+
+#endif  // ENGINE_AUDIO_AUDIO_SINK_NULL_H

src/engine/platform/asset_file.h

@@ -7,7 +7,7 @@
 #if defined(__ANDROID__)
 #include <zlib.h>
 #include "third_party/minizip/unzip.h"
-#elif defined(__linux__)
+#else
 #include "base/file.h"
 #endif
 
@@ -34,7 +34,7 @@ class AssetFile {
 #if defined(__ANDROID__)
   unzFile archive_ = 0;
   size_t uncompressed_size_ = 0;
-#elif defined(__linux)
+#else
   base::ScopedFILE file_;
 #endif
 };

src/engine/platform/platform.h

@@ -4,18 +4,15 @@
 #include <string>
 
 #if defined(__ANDROID__)
-
 #include "../../base/vecmath.h"
-
 struct android_app;
 struct AInputEvent;
 struct ANativeWindow;
-
 #elif defined(__linux__)
-
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
-
+#elif defined(_WIN32)
+#include <windows.h>
 #endif
 
 namespace eng {
@@ -28,6 +25,8 @@ class Platform {
   Platform(android_app* app);
 #elif defined(__linux__)
   Platform();
+#elif defined(_WIN32)
+  Platform(HINSTANCE instance, int cmd_show);
 #endif
   ~Platform();
 
@@ -64,6 +63,9 @@ class Platform {
 #elif defined(__linux__)
   Display* GetDisplay();
   Window GetWindow();
+#elif defined(_WIN32)
+  HINSTANCE GetInstance();
+  HWND GetWindow();
 #endif
 
  private:
@@ -113,6 +115,14 @@ class Platform {
 
   XVisualInfo* GetXVisualInfo(Display* display);
 
+#elif defined(_WIN32)
+
+  HINSTANCE instance_;
+  HWND wnd_;
+  int cmd_show_;
+
+  static LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
+
 #endif
 
   Platform(const Platform&) = delete;

src/engine/platform/platform_win.cc

@@ -0,0 +1,161 @@
+#include "engine/platform/platform.h"
+
+#include "base/log.h"
+#include "base/vecmath.h"
+#include "engine/input_event.h"
+#include "engine/platform/platform_observer.h"
+
+using namespace base;
+
+namespace eng {
+
+void KaliberMain(Platform* platform);
+
+Platform::Platform(HINSTANCE instance, int cmd_show)
+    : instance_(instance), cmd_show_(cmd_show) {
+  LOG(0) << "Initializing platform.";
+
+  root_path_ = ".\\";
+  data_path_ = ".\\";
+  shared_data_path_ = ".\\";
+
+  char dest[MAX_PATH];
+  memset(dest, 0, sizeof(dest));
+  if (GetModuleFileNameA(NULL, dest, MAX_PATH) > 0) {
+    std::string path = dest;
+    std::size_t last_slash_pos = path.find_last_of('\\');
+    if (last_slash_pos != std::string::npos)
+      path = path.substr(0, last_slash_pos + 1);
+
+    root_path_ = path;
+    data_path_ = path;
+    shared_data_path_ = path;
+  }
+
+  LOG(0) << "Root path: " << root_path_.c_str();
+  LOG(0) << "Data path: " << data_path_.c_str();
+  LOG(0) << "Shared data path: " << shared_data_path_.c_str();
+
+  WNDCLASSEXW wcex;
+  wcex.cbSize = sizeof(WNDCLASSEX);
+  wcex.style = CS_HREDRAW | CS_VREDRAW;
+  wcex.lpfnWndProc = WndProc;
+  wcex.cbClsExtra = 0;
+  wcex.cbWndExtra = 0;
+  wcex.hInstance = instance_;
+  wcex.hIcon = nullptr;
+  wcex.hCursor = LoadCursor(nullptr, IDC_ARROW);
+  wcex.hbrBackground = nullptr;
+  wcex.lpszMenuName = nullptr;
+  wcex.lpszClassName = L"KaliberWndClass";
+  wcex.hIconSm = nullptr;
+  RegisterClassEx(&wcex);
+}
+
+void Platform::CreateMainWindow() {
+  wnd_ = CreateWindow(L"KaliberWndClass", L"Kaliber", WS_OVERLAPPEDWINDOW,
+                      CW_USEDEFAULT, 0, 800, 1205, nullptr, nullptr, instance_,
+                      this);
+  CHECK(wnd_);
+
+  ShowWindow(wnd_, cmd_show_);
+  UpdateWindow(wnd_);
+}
+
+Platform::~Platform() {
+  LOG(0) << "Shutting down platform.";
+}
+
+void Platform::Update() {
+  MSG msg;
+  while (PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE)) {
+    if (msg.message == WM_QUIT) {
+      should_exit_ = true;
+      break;
+    }
+    TranslateMessage(&msg);
+    DispatchMessage(&msg);
+  }
+}
+
+void Platform::Exit() {
+  should_exit_ = true;
+}
+
+void Platform::Vibrate(int duration) {}
+
+void Platform::ShowInterstitialAd() {}
+
+void Platform::ShareFile(const std::string& file_name) {}
+
+void Platform::SetKeepScreenOn(bool keep_screen_on) {}
+
+HINSTANCE Platform::GetInstance() {
+  return instance_;
+}
+
+HWND Platform::GetWindow() {
+  return wnd_;
+}
+
+LRESULT CALLBACK Platform::WndProc(HWND wnd,
+                                   UINT message,
+                                   WPARAM wparam,
+                                   LPARAM lparam) {
+  auto* platform =
+      reinterpret_cast<Platform*>(GetWindowLongPtr(wnd, GWL_USERDATA));
+
+  switch (message) {
+    case WM_CREATE:
+      SetWindowLongPtr(wnd, GWL_USERDATA,
+                       (LONG_PTR)(((LPCREATESTRUCT)lparam)->lpCreateParams));
+      break;
+    case WM_SIZE:
+      platform->observer_->OnWindowResized(LOWORD(lparam), HIWORD(lparam));
+      break;
+    case WM_DESTROY:
+      platform->observer_->OnWindowDestroyed();
+      PostQuitMessage(0);
+      break;
+    case WM_ACTIVATEAPP:
+      if (wparam == TRUE)
+        platform->observer_->GainedFocus(false);
+      else
+        platform->observer_->LostFocus();
+      break;
+    case WM_MOUSEMOVE:
+      if (wparam == MK_LBUTTON) {
+        Vector2f v(MAKEPOINTS(lparam).x, MAKEPOINTS(lparam).y);
+        auto input_event =
+            std::make_unique<InputEvent>(InputEvent::kDrag, 0, v);
+        platform->observer_->AddInputEvent(std::move(input_event));
+      }
+      break;
+    case WM_LBUTTONDOWN: {
+      Vector2f v(MAKEPOINTS(lparam).x, MAKEPOINTS(lparam).y);
+      auto input_event =
+          std::make_unique<InputEvent>(InputEvent::kDragStart, 0, v);
+      platform->observer_->AddInputEvent(std::move(input_event));
+    } break;
+    case WM_LBUTTONUP: {
+      Vector2f v(MAKEPOINTS(lparam).x, MAKEPOINTS(lparam).y);
+      auto input_event =
+          std::make_unique<InputEvent>(InputEvent::kDragEnd, 0, v);
+      platform->observer_->AddInputEvent(std::move(input_event));
+    } break;
+    default:
+      return DefWindowProc(wnd, message, wparam, lparam);
+  }
+  return 0;
+}
+
+}  // namespace eng
+
+int WINAPI WinMain(HINSTANCE instance,
+                   HINSTANCE prev_instance,
+                   PSTR cmd_line,
+                   int cmd_show) {
+  eng::Platform platform(instance, cmd_show);
+  eng::KaliberMain(&platform);
+  return 0;
+}

src/engine/renderer/opengl/opengl.h

@@ -2,21 +2,33 @@
 #define ENGINE_RENDERER_OPENGL_OPENGL_H
 
 #if defined(__ANDROID__)
+
 // Use the modified Khronos header from ndk-helper. This gives access to
 // additional functionality the drivers may expose but which the system headers
 // do not.
 #include "third_party/android/gl3stub.h"
+
 #include <GLES2/gl2ext.h>
 
 #elif defined(__linux__)
+
 #include "third_party/glew/glew.h"
 #include "third_party/glew/glxew.h"
 
+#elif defined(_WIN32)
+
+#define GLEW_STATIC
+#include "third_party/glew/glew.h"
+#include "third_party/glew/wglew.h"
+
+#endif
+
+#if defined(__linux__) || defined(_WIN32)
+
 // Define the missing format for the etc1
 #ifndef GL_ETC1_RGB8_OES
 #define GL_ETC1_RGB8_OES 0x8D64
 #endif
-
 #endif
 
 #endif  // ENGINE_RENDERER_OPENGL_OPENGL_H

src/engine/renderer/opengl/renderer_opengl.h

@@ -122,11 +122,15 @@ class RendererOpenGL final : public Renderer {
   int screen_height_ = 0;
 
 #if defined(__ANDROID__)
-  ANativeWindow* window_;
+  ANativeWindow* window_ = nullptr;
 #elif defined(__linux__)
   Display* display_ = NULL;
   Window window_ = 0;
   GLXContext glx_context_ = NULL;
+#elif defined(_WIN32)
+  HWND wnd_ = nullptr;
+  HDC dc_ = nullptr;
+  HGLRC glrc_ = nullptr;
 #endif
 
   bool InitCommon();

src/engine/renderer/opengl/renderer_opengl_win.cc

@@ -0,0 +1,79 @@
+#include "engine/renderer/opengl/renderer_opengl.h"
+
+#include "base/log.h"
+#include "engine/platform/platform.h"
+
+namespace eng {
+
+bool RendererOpenGL::Initialize(Platform* platform) {
+  LOG(0) << "Initializing renderer.";
+
+  wnd_ = platform->GetWindow();
+  dc_ = GetDC(wnd_);
+
+  PIXELFORMATDESCRIPTOR pfd = {
+      sizeof(PIXELFORMATDESCRIPTOR), 1,
+      PFD_DRAW_TO_WINDOW |      // format must support window
+          PFD_SUPPORT_OPENGL |  // format must support OpenGL
+          PFD_DOUBLEBUFFER,
+      PFD_TYPE_RGBA,
+      32,  // color depth
+      // Color bits ignored
+      0, 0, 0, 0, 0, 0,
+      0,  // alpha buffer
+      0,  // shift bit ignored
+      0,  // no accumulation buffer
+      // Accumulation bits ignored
+      0, 0, 0, 0,
+      24,  // z-buffer
+      0,   // no stencil buffer
+      0,   // no auxiliary buffer
+      PFD_MAIN_PLANE,
+      0,  // reserved
+      // layer masks ignored
+      0, 0, 0};
+  int pf = ChoosePixelFormat(dc_, &pfd);
+  if (pf == 0) {
+    LOG(0) << "ChoosePixelFormat failed.";
+    return false;
+  }
+  SetPixelFormat(dc_, pf, &pfd);
+
+  glrc_ = wglCreateContext(dc_);
+  wglMakeCurrent(dc_, glrc_);
+
+  if (GLEW_OK != glewInit()) {
+    LOG(0) << "Couldn't initialize OpenGL extension wrangler.";
+    return false;
+  }
+
+  RECT rect;
+  GetClientRect(platform->GetWindow(), &rect);
+  OnWindowResized(rect.right, rect.bottom);
+
+  return InitCommon();
+}
+
+void RendererOpenGL::OnDestroy() {}
+
+void RendererOpenGL::Shutdown() {
+  LOG(0) << "Shutting down renderer.";
+  is_initialized_ = false;
+  if (dc_ && glrc_) {
+    wglMakeCurrent(nullptr, nullptr);
+    wglDeleteContext(glrc_);
+    ReleaseDC(wnd_, dc_);
+    dc_ = nullptr;
+    glrc_ = nullptr;
+  }
+}
+
+void RendererOpenGL::Present() {
+  SwapBuffers(dc_);
+  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+  active_shader_id_ = 0;
+  active_texture_id_ = 0;
+  fps_++;
+}
+
+}  // namespace eng

src/engine/renderer/vulkan/renderer_vulkan.cc

@@ -379,7 +379,7 @@ RendererVulkan::~RendererVulkan() {
 }
 
 void RendererVulkan::OnWindowResized(int width, int height) {
-  context_.ResizeWindow(width, height);
+  context_.ResizeSurface(width, height);
 }
 
 int RendererVulkan::GetScreenWidth() const {
@@ -1041,7 +1041,7 @@ void RendererVulkan::Shutdown() {
   current_staging_buffer_ = 0;
   staging_buffer_used_ = false;
 
-  context_.DestroyWindow();
+  context_.DestroySurface();
   context_.Shutdown();
 
   glslang::FinalizeProcess();

src/engine/renderer/vulkan/renderer_vulkan_android.cc

@@ -17,7 +17,7 @@ bool RendererVulkan::Initialize(Platform* platform) {
     LOG(0) << "Failed to initialize Vulkan context.";
     return false;
   }
-  if (!context_.CreateWindow(platform->GetWindow(), width, height)) {
+  if (!context_.CreateSurface(platform->GetWindow(), width, height)) {
     LOG(0) << "Vulkan context failed to create window.";
     return false;
   }

src/engine/renderer/vulkan/renderer_vulkan_linux.cc

@@ -15,8 +15,8 @@ bool RendererVulkan::Initialize(Platform* platform) {
     LOG(0) << "Failed to initialize Vulkan context.";
     return false;
   }
-  if (!context_.CreateWindow(platform->GetDisplay(), platform->GetWindow(),
+  if (!context_.CreateSurface(platform->GetDisplay(), platform->GetWindow(),
-                             xwa.width, xwa.height)) {
+                              xwa.width, xwa.height)) {
     LOG(0) << "Vulkan context failed to create window.";
     return false;
   }

src/engine/renderer/vulkan/renderer_vulkan_win.cc

@@ -0,0 +1,27 @@
+#include "engine/renderer/vulkan/renderer_vulkan.h"
+
+#include "base/log.h"
+#include "engine/platform/platform.h"
+
+namespace eng {
+
+bool RendererVulkan::Initialize(Platform* platform) {
+  LOG(0) << "Initializing renderer.";
+
+  RECT rect;
+  GetClientRect(platform->GetWindow(), &rect);
+
+  if (!context_.Initialize()) {
+    LOG(0) << "Failed to initialize Vulkan context.";
+    return false;
+  }
+  if (!context_.CreateSurface(platform->GetInstance(), platform->GetWindow(),
+                              rect.right, rect.bottom)) {
+    LOG(0) << "Vulkan context failed to create window.";
+    return false;
+  }
+
+  return InitializeInternal();
+}
+
+}  // namespace eng

src/engine/renderer/vulkan/vulkan_context.cc

@@ -703,7 +703,7 @@ bool VulkanContext::InitializeQueues(VkSurfaceKHR surface) {
 
 #if defined(__ANDROID__)
   VkFormat desired_format = VK_FORMAT_R8G8B8A8_UNORM;
-#elif defined(__linux__)
+#elif defined(__linux__) || defined(_WIN32)
   VkFormat desired_format = VK_FORMAT_B8G8R8A8_UNORM;
 #endif
 
@@ -797,13 +797,13 @@ bool VulkanContext::CreateSemaphores() {
   return true;
 }
 
-void VulkanContext::ResizeWindow(int width, int height) {
+void VulkanContext::ResizeSurface(int width, int height) {
   window_.width = width;
   window_.height = height;
   UpdateSwapChain(&window_);
 }
 
-void VulkanContext::DestroyWindow() {
+void VulkanContext::DestroySurface() {
   CleanUpSwapChain(&window_);
   vkDestroySurfaceKHR(instance_, window_.surface, nullptr);
 }

src/engine/renderer/vulkan/vulkan_context.h

@@ -24,13 +24,15 @@ class VulkanContext {
   void Shutdown();
 
 #if defined(__ANDROID__)
-  bool CreateWindow(ANativeWindow* window, int width, int height);
+  bool CreateSurface(ANativeWindow* window, int width, int height);
 #elif defined(__linux__)
-  bool CreateWindow(Display* display, ::Window window, int width, int height);
+  bool CreateSurface(Display* display, ::Window window, int width, int height);
+#elif defined(_WIN32)
+  bool CreateSurface(HINSTANCE hInstance, HWND hWnd, int width, int height);
 #endif
 
-  void ResizeWindow(int width, int height);
+  void ResizeSurface(int width, int height);
-  void DestroyWindow();
+  void DestroySurface();
 
   VkFramebuffer GetFramebuffer();
 

src/engine/renderer/vulkan/vulkan_context_android.cc

@@ -8,7 +8,9 @@ const char* VulkanContext::GetPlatformSurfaceExtension() const {
   return VK_KHR_ANDROID_SURFACE_EXTENSION_NAME;
 }
 
-bool VulkanContext::CreateWindow(ANativeWindow* window, int width, int height) {
+bool VulkanContext::CreateSurface(ANativeWindow* window,
+                                  int width,
+                                  int height) {
   VkAndroidSurfaceCreateInfoKHR surface_info;
   surface_info.sType = VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR;
   surface_info.pNext = nullptr;

src/engine/renderer/vulkan/vulkan_context_linux.cc

@@ -8,10 +8,10 @@ const char* VulkanContext::GetPlatformSurfaceExtension() const {
   return VK_KHR_XLIB_SURFACE_EXTENSION_NAME;
 }
 
-bool VulkanContext::CreateWindow(Display* display,
+bool VulkanContext::CreateSurface(Display* display,
-                                 ::Window window,
+                                  ::Window window,
-                                 int width,
+                                  int width,
-                                 int height) {
+                                  int height) {
   VkXlibSurfaceCreateInfoKHR surface_info;
   surface_info.sType = VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR;
   surface_info.pNext = nullptr;

src/engine/renderer/vulkan/vulkan_context_win.cc

@@ -0,0 +1,43 @@
+#include "engine/renderer/vulkan/vulkan_context.h"
+
+#include "base/log.h"
+
+namespace eng {
+
+const char* VulkanContext::GetPlatformSurfaceExtension() const {
+  return VK_KHR_WIN32_SURFACE_EXTENSION_NAME;
+}
+
+bool VulkanContext::CreateSurface(HINSTANCE hInstance,
+                                  HWND hWnd,
+                                  int width,
+                                  int height) {
+  VkWin32SurfaceCreateInfoKHR create_info;
+  create_info.sType = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR;
+  create_info.pNext = nullptr;
+  create_info.flags = 0;
+  create_info.hinstance = hInstance;
+  create_info.hwnd = hWnd;
+
+  VkSurfaceKHR surface;
+  VkResult err =
+      vkCreateWin32SurfaceKHR(instance_, &create_info, nullptr, &surface);
+  if (err != VK_SUCCESS) {
+    LOG(0) << "vkCreateWin32SurfaceKHR failed with error "
+           << std::to_string(err);
+    return false;
+  }
+
+  if (!queues_initialized_ && !InitializeQueues(surface))
+    return false;
+
+  window_.surface = surface;
+  window_.width = width;
+  window_.height = height;
+  if (!UpdateSwapChain(&window_))
+    return false;
+
+  return true;
+}
+
+}  // namespace eng

src/hello_world/BUILD.gn

@@ -1,7 +1,5 @@
 executable("hello_world") {
-  sources = [
+  sources = [ "hello_world.cc" ]
-    "hello_world.cc",
-  ]
 
   deps = [
     "//src/base",

src/third_party/BUILD.gn

@@ -7,6 +7,10 @@ config("third_party_config") {
   if (target_os == "linux") {
     defines = [ "VK_USE_PLATFORM_XLIB_KHR" ]
   }
+
+  if (target_os == "win") {
+    defines = [ "VK_USE_PLATFORM_WIN32_KHR" ]
+  }
 }
 
 source_set("third_party") {
@@ -53,12 +57,13 @@ source_set("third_party") {
     "glslang/glslang/MachineIndependent/preprocessor/PpTokens.cpp",
     "glslang/glslang/MachineIndependent/propagateNoContraction.cpp",
     "glslang/glslang/MachineIndependent/reflection.cpp",
-    "glslang/glslang/OSDependent/Unix/ossource.cpp",
     "jsoncpp/json.h",
     "jsoncpp/jsoncpp.cpp",
+    "minimp3/minimp3.cc",
     "minimp3/minimp3.h",
     "minimp3/minimp3_ex.h",
     "spirv-reflect/spirv_reflect.c",
+    "stb/stb_image.cc",
     "stb/stb_image.h",
     "stb/stb_truetype.h",
     "texture_compressor/dxt_encoder.cc",
@@ -74,17 +79,34 @@ source_set("third_party") {
     "volk/volk.c",
   ]
 
-  defines = [ "VMA_STATIC_VULKAN_FUNCTIONS=1" ]
+  defines = [
+    "VMA_STATIC_VULKAN_FUNCTIONS=1",
+    "GLEW_STATIC",
+  ]
 
-  if (target_os == "linux") {
+  if (target_os == "linux" || target_os == "win") {
     sources += [
       "glew/glew.c",
       "glew/glew.h",
+    ]
+  }
+
+  if (target_os == "linux") {
+    sources += [
       "glew/glxew.h",
+      "glslang/glslang/OSDependent/Unix/ossource.cpp",
+    ]
+  }
+
+  if (target_os == "win") {
+    sources += [
+      "glew/wglew.h",
+      "glslang/glslang/OSDependent/Windows/ossource.cpp",
     ]
   }
 
   configs -= [ "//build:warnings" ]
+  configs += [ "//build:third_party_warnings" ]
 
   deps = []
 }

src/third_party/glslang/glslang/MachineIndependent/Constant.cpp

@@ -213,8 +213,8 @@ TIntermTyped* TIntermConstantUnion::fold(TOperator op, const TIntermTyped* right
             case EbtInt64:
                 if (rightUnionArray[i] == 0ll)
                     newConstArray[i].setI64Const(0x7FFFFFFFFFFFFFFFll);
-                else if (rightUnionArray[i].getI64Const() == -1 && leftUnionArray[i].getI64Const() == (long long)-0x8000000000000000ll)
+                else if (rightUnionArray[i].getI64Const() == -1 && leftUnionArray[i].getI64Const() == (long long)0x8000000000000000ll)
-                    newConstArray[i].setI64Const((long long)-0x8000000000000000ll);
+                    newConstArray[i].setI64Const((long long)0x8000000000000000ll);
                 else
                     newConstArray[i].setI64Const(leftUnionArray[i].getI64Const() / rightUnionArray[i].getI64Const());
                 break;

src/third_party/minimp3/minimp3.cc

@@ -0,0 +1,6 @@
+#define MINIMP3_ONLY_MP3
+#define MINIMP3_ONLY_SIMD
+#define MINIMP3_FLOAT_OUTPUT
+#define MINIMP3_NO_STDIO
+#define MINIMP3_IMPLEMENTATION
+#include "third_party/minimp3/minimp3_ex.h"

src/third_party/stb/stb_image.cc

@@ -0,0 +1,10 @@
+#include "base/mem.h"
+
+// Use aligned memory for SIMD in texture compressor.
+#define STB_IMAGE_IMPLEMENTATION
+#define STBI_NO_STDIO
+#define STBI_MALLOC(sz) base::AlignedAlloc(sz, 16)
+#define STBI_REALLOC_SIZED(p, oldsz, newsz) \
+  base::AlignedRealloc(p, oldsz, newsz, 16)
+#define STBI_FREE(p) base::AlignedFree(p)
+#include "third_party/stb/stb_image.h"