.

5 files changed, 101 insertions, 0 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 413b9d79..00cf1df3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -58,6 +58,14 @@ if(NOT BOOTSTRAP_DEPENDS)
     include_directories(.)
     include_directories(src)
 
+if(MSVC)
+    add_definitions(-FI"compat/prelude.hpp")
+else()
+    # GCC or Clang
+    add_definitions(-include compat/prelude.hpp)
+endif()
+
+    add_definitions(-DGAME_PROJECT_NAME=floormat)
     add_subdirectory(src)
     add_subdirectory(draw)
     add_subdirectory(main)
diff --git a/compat/arch.hpp b/compat/arch.hpp
new file mode 100644
index 00000000..0b58b65a
--- /dev/null
+++ b/compat/arch.hpp
@@ -0,0 +1,45 @@
+#pragma once
+
+#if defined _MSC_VER
+#   ifdef __clang__
+#       pragma clang diagnostic push
+#       pragma clang diagnostic ignored "-Wreserved-id-macro"
+#       pragma clang diagnostic ignored "-Wunused-macros"
+#   endif
+
+#   if defined _M_AMD64
+#       undef __x86_64__
+#       define __x86_64__ 1
+#   elif defined _M_IX86
+#       undef __i386__
+#       define __i386__ 1
+#   endif
+
+#   if defined __AVX__ || defined __x86_64__ || \
+       defined _M_IX86 && _M_IX86_FP >= 2
+#       undef __SSE__
+#       undef __SSE2__
+#       undef __SSE3__
+#       define __SSE__ 1
+#       define __SSE2__ 1
+#       define __SSE3__ 1
+#   endif
+
+#   ifdef __clang__
+#       pragma clang diagnostic pop
+#   endif
+#endif
+
+#if defined __SSE3__
+#   define FLOORMAT_ARCH_DENORM_DAZ
+#   include <pmmintrin.h>
+#elif defined __SSE2__
+#   define FLOORMAT_ARCH_DENORM_FTZ
+#   include <emmintrin.h>
+#endif
+
+#if defined __SSE2__
+#   define FLOORMAT_ARCH_FPU_MASK
+#   include <xmmintrin.h>
+#endif
+
diff --git a/compat/fpu.hpp b/compat/fpu.hpp
new file mode 100644
index 00000000..1b3776f9
--- /dev/null
+++ b/compat/fpu.hpp
@@ -0,0 +1,40 @@
+#pragma once
+#include "arch.hpp"
+
+#ifdef __MINGW32__
+extern "C" __declspec(dllimport) unsigned __cdecl _controlfp(unsigned, unsigned);
+#endif
+
+static inline void set_fp_mask()
+{
+#if defined FLOORMAT_ARCH_DENORM_DAZ
+    _MM_SET_DENORMALS_ZERO_MODE(_MM_DENORMALS_ZERO_ON);
+#elif defined FLOORMAT_ARCH_DENORM_FTZ
+    _MM_SET_FLUSH_ZERO_MODE(_MM_FLUSH_ZERO_ON);
+#endif
+
+#ifdef FLOORMAT_ARCH_FPU_MASK
+    _MM_SET_EXCEPTION_MASK(_MM_MASK_MASK);
+#endif
+
+#ifdef __APPLE__
+    fesetenv(FE_DFL_DISABLE_SSE_DENORMS_ENV);
+#endif
+
+#ifdef _WIN32
+#   ifdef __clang__
+#       pragma clang diagnostic push
+#       pragma clang diagnostic ignored "-Wreserved-id-macro"
+#   endif
+#   ifndef _DN_FLUSH
+#       define _DN_FLUSH 0x01000000
+#   endif
+#   ifndef _MCW_DN
+#       define _MCW_DN 0x03000000
+#   endif
+#   ifdef __clang__
+#       pragma clang diagnostic pop
+#   endif
+    _controlfp(_DN_FLUSH, _MCW_DN);
+#endif
+}
diff --git a/compat/prelude.hpp b/compat/prelude.hpp
new file mode 100644
index 00000000..8b0387c5
--- /dev/null
+++ b/compat/prelude.hpp
@@ -0,0 +1,6 @@
+#pragma once
+
+namespace Magnum {}
+namespace GAME_PROJECT_NAME {
+    using namespace ::Magnum;
+} // namespace GAME_PROJECT_NAME
diff --git a/main/app.cpp b/main/app.cpp
index b0acda2e..6d2474b4 100644
--- a/main/app.cpp
+++ b/main/app.cpp
@@ -1,4 +1,5 @@
 #include "app.hpp"
+#include "compat/fpu.hpp"
 
 namespace Magnum::Examples {
 
@@ -14,6 +15,7 @@ app::app(const Arguments& arguments):
               .setFlags(GLConfiguration::Flag::GpuValidation)
       }
 {
+    set_fp_mask();
     reset_camera_offset();
     update_window_scale(windowSize());
     timeline.start();