From 2371b247fff6ba48a622f67aaa6d15b9ac54c95a Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Sun, 31 Oct 2021 18:27:51 -0500
Subject: [PATCH] windows: improve feature detection consistency between CMake
 and non-CMake builds

---
 include/SDL_config.h.cmake                  |  1 +
 include/SDL_config_windows.h                | 30 ++++++++++-----------
 src/joystick/windows/SDL_rawinputjoystick.c |  2 +-
 3 files changed, 16 insertions(+), 17 deletions(-)

diff --git a/include/SDL_config.h.cmake b/include/SDL_config.h.cmake
index a0784f603..4e6337994 100644
--- a/include/SDL_config.h.cmake
+++ b/include/SDL_config.h.cmake
@@ -245,6 +245,7 @@
 #cmakedefine HAVE_DSOUND_H @HAVE_DSOUND_H@
 #cmakedefine HAVE_DINPUT_H @HAVE_DINPUT_H@
 #cmakedefine HAVE_XINPUT_H @HAVE_XINPUT_H@
+#cmakedefine HAVE_WINDOWS_GAMING_INPUT_H @HAVE_WINDOWS_GAMING_INPUT_H@
 #cmakedefine HAVE_DXGI_H @HAVE_DXGI_H@
 
 #cmakedefine HAVE_MMDEVICEAPI_H @HAVE_MMDEVICEAPI_H@
diff --git a/include/SDL_config_windows.h b/include/SDL_config_windows.h
index 9fae43ed3..eab51f73d 100644
--- a/include/SDL_config_windows.h
+++ b/include/SDL_config_windows.h
@@ -25,6 +25,12 @@
 
 #include "SDL_platform.h"
 
+/* winsdkver.h defines _WIN32_MAXVER for SDK version detection. It is present since at least the Windows 7 SDK.
+ * Define NO_WINSDKVER_H if your SDK version doesn't provide this, or use CMake which can detect it automatically. */
+#ifndef NO_WINSDKVER_H
+#include <winsdkver.h>
+#endif
+
 /* This is a set of defines to configure the SDL features */
 
 #if !defined(_STDINT_H_) && (!defined(HAVE_STDINT_H) || !_HAVE_STDINT_H)
@@ -82,6 +88,12 @@ typedef unsigned int uintptr_t;
 #define HAVE_DSOUND_H 1
 #define HAVE_DXGI_H 1
 #define HAVE_XINPUT_H 1
+#if defined(_WIN32_MAXVER) && _WIN32_MAXVER >= 0x0A00  /* Windows 10 SDK */
+#define HAVE_WINDOWS_GAMING_INPUT_H 1
+#endif
+#if defined(_WIN32_MAXVER) && _WIN32_MAXVER >= 0x0601  /* Windows 7 SDK */
+#define HAVE_D3D11_H 1
+#endif
 #define HAVE_MMDEVICEAPI_H 1
 #define HAVE_AUDIOCLIENT_H 1
 #define HAVE_SENSORSAPI_H 1
@@ -201,20 +213,6 @@ typedef unsigned int uintptr_t;
 #define HAVE_STDDEF_H   1
 #endif
 
-/* Check to see if we have Windows 10 build environment */
-#if defined(_MSC_VER) && (_MSC_VER >= 1911)        /* Visual Studio 15.3 */
-#include <sdkddkver.h>
-#if _WIN32_WINNT >= 0x0601  /* Windows 7 */
-#define SDL_WINDOWS7_SDK
-#endif
-#if _WIN32_WINNT >= 0x0602  /* Windows 8 */
-#define SDL_WINDOWS8_SDK
-#endif
-#if _WIN32_WINNT >= 0x0A00  /* Windows 10 */
-#define SDL_WINDOWS10_SDK
-#endif
-#endif /* _MSC_VER >= 1911 */
-
 /* Enable various audio drivers */
 #define SDL_AUDIO_DRIVER_WASAPI 1
 #define SDL_AUDIO_DRIVER_DSOUND 1
@@ -229,7 +227,7 @@ typedef unsigned int uintptr_t;
 #define SDL_JOYSTICK_RAWINPUT   1
 #endif
 #define SDL_JOYSTICK_VIRTUAL    1
-#ifdef SDL_WINDOWS10_SDK
+#ifdef HAVE_WINDOWS_GAMING_INPUT_H
 #define SDL_JOYSTICK_WGI    1
 #endif
 #define SDL_JOYSTICK_XINPUT 1
@@ -256,7 +254,7 @@ typedef unsigned int uintptr_t;
 #ifndef SDL_VIDEO_RENDER_D3D
 #define SDL_VIDEO_RENDER_D3D    1
 #endif
-#ifdef SDL_WINDOWS7_SDK
+#if !defined(SDL_VIDEO_RENDER_D3D11) && defined(HAVE_D3D11_H)
 #define SDL_VIDEO_RENDER_D3D11  1
 #endif
 
diff --git a/src/joystick/windows/SDL_rawinputjoystick.c b/src/joystick/windows/SDL_rawinputjoystick.c
index 1bcf1564d..2210b192d 100644
--- a/src/joystick/windows/SDL_rawinputjoystick.c
+++ b/src/joystick/windows/SDL_rawinputjoystick.c
@@ -47,7 +47,7 @@
 #ifdef HAVE_XINPUT_H
 #define SDL_JOYSTICK_RAWINPUT_XINPUT
 #endif
-#ifdef SDL_WINDOWS10_SDK
+#ifdef HAVE_WINDOWS_GAMING_INPUT_H
 #define SDL_JOYSTICK_RAWINPUT_WGI
 #endif