1 files changed, 140 insertions, 0 deletions
diff --git a/extern/sdlew/include/SDL2/SDL_assert.h b/extern/sdlew/include/SDL2/SDL_assert.h
new file mode 100644
index 00000000000..aa7b3ee2c25
--- /dev/null
+++ b/extern/sdlew/include/SDL2/SDL_assert.h
@@ -0,0 +1,140 @@
+
+#ifndef _SDL_assert_h
+#define _SDL_assert_h
+
+#include "SDL_config.h"
+
+#include "begin_code.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef SDL_ASSERT_LEVEL
+#ifdef SDL_DEFAULT_ASSERT_LEVEL
+#define SDL_ASSERT_LEVEL SDL_DEFAULT_ASSERT_LEVEL
+#elif defined(_DEBUG) || defined(DEBUG) || \
+      (defined(__GNUC__) && !defined(__OPTIMIZE__))
+#define SDL_ASSERT_LEVEL 2
+#else
+#define SDL_ASSERT_LEVEL 1
+#endif
+#endif
+
+#if defined(_MSC_VER)
+
+    extern void __cdecl __debugbreak(void);
+    #define SDL_TriggerBreakpoint() __debugbreak()
+#elif (defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)))
+    #define SDL_TriggerBreakpoint() __asm__ __volatile__ ( "int $3\n\t" )
+#elif defined(HAVE_SIGNAL_H)
+    #include <signal.h>
+    #define SDL_TriggerBreakpoint() raise(SIGTRAP)
+#else
+
+    #define SDL_TriggerBreakpoint()
+#endif
+
+#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
+#   define SDL_FUNCTION __func__
+#elif ((__GNUC__ >= 2) || defined(_MSC_VER))
+#   define SDL_FUNCTION __FUNCTION__
+#else
+#   define SDL_FUNCTION "???"
+#endif
+#define SDL_FILE    __FILE__
+#define SDL_LINE    __LINE__
+
+#define SDL_disabled_assert(condition) \
+    do { (void) sizeof ((condition)); } while (0)
+
+typedef enum
+{
+    SDL_ASSERTION_RETRY,
+    SDL_ASSERTION_BREAK,
+    SDL_ASSERTION_ABORT,
+    SDL_ASSERTION_IGNORE,
+    SDL_ASSERTION_ALWAYS_IGNORE
+} SDL_assert_state;
+
+typedef struct SDL_assert_data
+{
+    int always_ignore;
+    unsigned int trigger_count;
+    const char *condition;
+    const char *filename;
+    int linenum;
+    const char *function;
+    const struct SDL_assert_data *next;
+} SDL_assert_data;
+
+#if (SDL_ASSERT_LEVEL > 0)
+
+typedef SDL_assert_state SDLCALL tSDL_ReportAssertion(SDL_assert_data *,
+                                                             const char *,
+                                                             const char *, int);
+
+#define SDL_enabled_assert(condition) \
+    do { \
+        while ( !(condition) ) { \
+            static struct SDL_assert_data assert_data = { \
+                0, 0, #condition, 0, 0, 0, 0 \
+            }; \
+            const SDL_assert_state state = SDL_ReportAssertion(&assert_data, \
+                                                               SDL_FUNCTION, \
+                                                               SDL_FILE, \
+                                                               SDL_LINE); \
+            if (state == SDL_ASSERTION_RETRY) { \
+                continue;  \
+            } else if (state == SDL_ASSERTION_BREAK) { \
+                SDL_TriggerBreakpoint(); \
+            } \
+            break;  \
+        } \
+    } while (0)
+
+#endif
+
+#if SDL_ASSERT_LEVEL == 0
+#   define SDL_assert(condition) SDL_disabled_assert(condition)
+#   define SDL_assert_release(condition) SDL_disabled_assert(condition)
+#   define SDL_assert_paranoid(condition) SDL_disabled_assert(condition)
+#elif SDL_ASSERT_LEVEL == 1
+#   define SDL_assert(condition) SDL_disabled_assert(condition)
+#   define SDL_assert_release(condition) SDL_enabled_assert(condition)
+#   define SDL_assert_paranoid(condition) SDL_disabled_assert(condition)
+#elif SDL_ASSERT_LEVEL == 2
+#   define SDL_assert(condition) SDL_enabled_assert(condition)
+#   define SDL_assert_release(condition) SDL_enabled_assert(condition)
+#   define SDL_assert_paranoid(condition) SDL_disabled_assert(condition)
+#elif SDL_ASSERT_LEVEL == 3
+#   define SDL_assert(condition) SDL_enabled_assert(condition)
+#   define SDL_assert_release(condition) SDL_enabled_assert(condition)
+#   define SDL_assert_paranoid(condition) SDL_enabled_assert(condition)
+#else
+#   error Unknown assertion level.
+#endif
+
+typedef SDL_assert_state (SDLCALL *SDL_AssertionHandler)(
+                                 const SDL_assert_data* data, void* userdata);
+
+typedef void SDLCALL tSDL_SetAssertionHandler(
+                                            SDL_AssertionHandler handler,
+                                            void *userdata);
+
+typedef const SDL_assert_data * SDLCALL tSDL_GetAssertionReport(void);
+
+typedef void SDLCALL tSDL_ResetAssertionReport(void);
+
+extern tSDL_ReportAssertion *SDL_ReportAssertion;
+extern tSDL_SetAssertionHandler *SDL_SetAssertionHandler;
+extern tSDL_GetAssertionReport *SDL_GetAssertionReport;
+extern tSDL_ResetAssertionReport *SDL_ResetAssertionReport;
+
+#ifdef __cplusplus
+}
+#endif
+#include "close_code.h"
+
+#endif
+