From 51fbfa9b2913e04f923c11f6d2bb9319a638faa3 Mon Sep 17 00:00:00 2001
From: milerius <rmscastle@gmail.com>
Date: Mon, 28 Oct 2019 20:37:10 +0100
Subject: [PATCH] feat(sdl): scaling work on windows

---
 cmake/dependencies.cmake                         |  6 +++++-
 modules/sdl/antara/gaming/sdl/graphic.system.cpp | 13 +++++++++++--
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/cmake/dependencies.cmake b/cmake/dependencies.cmake
index f0f24cc2..2717c4a7 100644
--- a/cmake/dependencies.cmake
+++ b/cmake/dependencies.cmake
@@ -99,7 +99,11 @@ if (USE_SDL_ANTARA_WRAPPER)
     add_library(antara::sdl_import ALIAS antara_sdl_import)
     #add_dependencies(antara_sdl_import external_sdl)
     #include(GNUInstallDirs)
-    set(SDL2_DIR ${CMAKE_BINARY_DIR}/sdl/external/installed/lib/cmake/SDL2)
+    if (WIN32)
+        set(SDL2_DIR ${CMAKE_BINARY_DIR}/sdl/external/installed/cmake/)
+    else ()
+        set(SDL2_DIR ${CMAKE_BINARY_DIR}/sdl/external/installed/lib/cmake/SDL2)
+    endif ()
     find_package(SDL2 REQUIRED)
     target_link_libraries(antara_sdl_import INTERFACE SDL2::SDL2-static)
     target_include_directories(antara_sdl_import
diff --git a/modules/sdl/antara/gaming/sdl/graphic.system.cpp b/modules/sdl/antara/gaming/sdl/graphic.system.cpp
index 747ee5e2..6b37bf9b 100644
--- a/modules/sdl/antara/gaming/sdl/graphic.system.cpp
+++ b/modules/sdl/antara/gaming/sdl/graphic.system.cpp
@@ -13,10 +13,16 @@
  * Removal or modification of this copyright notice is prohibited.            *
  *                                                                            *
  ******************************************************************************/
+#ifdef _WIN32
+    #pragma comment(lib, "Shcore.lib")
+    #define NOMINMAX
+    #include <windows.h>
+    #include <ShellScalingApi.h>
+#endif
 
-#include <iostream>
 #include <SDL2/SDL.h>
 #include <antara/gaming/event/quit.game.hpp>
+
 #include "antara/gaming/graphics/component.canvas.hpp"
 #include "antara/gaming/event/fatal.error.hpp"
 #include "antara/gaming/sdl/graphic.system.hpp"
@@ -32,7 +38,7 @@ namespace
         SDL_Window *window = nullptr;
         auto[screen_width, screen_height] = canvas_2d.window.size.to<math::vec2i>();
         auto[screen_pos_x, screen_pos_y] = canvas_2d.window.position.to<math::vec2i>();
-        SDL_SetHint(SDL_HINT_VIDEO_HIGHDPI_DISABLED, "1");
+
         Uint32 flags = SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI;
         if (canvas_2d.is_fullscreen) {
             flags |= SDL_WINDOW_FULLSCREEN;
@@ -57,6 +63,9 @@ namespace antara::gaming::sdl
 
     graphic_system::graphic_system(entt::registry &registry) noexcept : system(registry)
     {
+#ifdef _WIN32
+        SetProcessDpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE);
+#endif
         if (auto res = SDL_Init(SDL_INIT_EVERYTHING); res < 0) {
             this->dispatcher_.trigger<event::fatal_error>(std::error_code(res, sdl::sdl_error_category()));
         }