Updated SDL, Bullet and OpenAL soft libs

Fixed case sensitivity problem
Fixed clang compiler problem with having the class namespace used in an inline for the == operator
Tweaked some theme stuff to be more consistent.
Added initial test of no-pie for linux
test sidestep of getTexCoord in shadergen hlsl feature so we don't assert when getting the terrain's shaderstuffs(which uses float3 instead of normal float2)

Engine/lib/sdl/src/events/SDL_displayevents.c

@@ -0,0 +1,60 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "../SDL_internal.h"
+
+/* Display event handling code for SDL */
+
+#include "SDL_events.h"
+#include "SDL_events_c.h"
+
+
+int
+SDL_SendDisplayEvent(SDL_VideoDisplay *display, Uint8 displayevent, int data1)
+{
+    int posted;
+
+    if (!display) {
+        return 0;
+    }
+    switch (displayevent) {
+    case SDL_DISPLAYEVENT_ORIENTATION:
+        if (data1 == SDL_ORIENTATION_UNKNOWN || data1 == display->orientation) {
+            return 0;
+        }
+        display->orientation = (SDL_DisplayOrientation)data1;
+        break;
+    }
+
+    /* Post the event, if desired */
+    posted = 0;
+    if (SDL_GetEventState(SDL_DISPLAYEVENT) == SDL_ENABLE) {
+        SDL_Event event;
+        event.type = SDL_DISPLAYEVENT;
+        event.display.event = displayevent;
+        event.display.display = SDL_GetIndexOfDisplay(display);
+        event.display.data1 = data1;
+        posted = (SDL_PushEvent(&event) > 0);
+    }
+
+    return (posted);
+}
+
+/* vi: set ts=4 sw=4 expandtab: */

Engine/lib/sdl/src/events/SDL_displayevents_c.h

@@ -0,0 +1,30 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "../SDL_internal.h"
+
+#ifndef SDL_displayevents_c_h_
+#define SDL_displayevents_c_h_
+
+extern int SDL_SendDisplayEvent(SDL_VideoDisplay *display, Uint8 displayevent, int data1);
+
+#endif /* SDL_displayevents_c_h_ */
+
+/* vi: set ts=4 sw=4 expandtab: */

Engine/lib/sdl/src/events/SDL_events.c

@@ -417,6 +417,10 @@ SDL_StartEventLoop(void)
     SDL_EventState(SDL_TEXTINPUT, SDL_DISABLE);
     SDL_EventState(SDL_TEXTEDITING, SDL_DISABLE);
     SDL_EventState(SDL_SYSWMEVENT, SDL_DISABLE);
+#if 0 /* Leave these events enabled so apps can respond to items being dragged onto them at startup */
+    SDL_EventState(SDL_DROPFILE, SDL_DISABLE);
+    SDL_EventState(SDL_DROPTEXT, SDL_DISABLE);
+#endif
 
     SDL_AtomicSet(&SDL_EventQ.active, 1);
 
@@ -604,6 +608,10 @@ SDL_FlushEvent(Uint32 type)
 void
 SDL_FlushEvents(Uint32 minType, Uint32 maxType)
 {
+    /* !!! FIXME: we need to manually SDL_free() the strings in TEXTINPUT and
+       drag'n'drop events if we're flushing them without passing them to the
+       app, but I don't know if this is the right place to do that. */
+
     /* Don't look after we've quit */
     if (!SDL_AtomicGet(&SDL_EventQ.active)) {
         return;
@@ -651,6 +659,13 @@ SDL_PumpEvents(void)
     }
 #endif
 
+#if !SDL_SENSOR_DISABLED
+    /* Check for sensor state change */
+    if (!SDL_disabled_events[SDL_SENSORUPDATE >> 8]) {
+        SDL_SensorUpdate();
+    }
+#endif
+
     SDL_SendPendingQuit();  /* in case we had a signal handler fire, etc. */
 }
 
@@ -863,6 +878,8 @@ SDL_FilterEvents(SDL_EventFilter filter, void *userdata)
 Uint8
 SDL_EventState(Uint32 type, int state)
 {
+    const SDL_bool isdnd = ((state == SDL_DISABLE) || (state == SDL_ENABLE)) &&
+                           ((type == SDL_DROPFILE) || (type == SDL_DROPTEXT));
     Uint8 current_state;
     Uint8 hi = ((type >> 8) & 0xff);
     Uint8 lo = (type & 0xff);
@@ -898,6 +915,12 @@ SDL_EventState(Uint32 type, int state)
         }
     }
 
+    /* turn off drag'n'drop support if we've disabled the events.
+       This might change some UI details at the OS level. */
+    if (isdnd) {
+        SDL_ToggleDragAndDropSupport();
+    }
+
     return current_state;
 }
 

Engine/lib/sdl/src/events/SDL_events_c.h

@@ -18,12 +18,19 @@
      misrepresented as being the original software.
   3. This notice may not be removed or altered from any source distribution.
 */
+
+#ifndef SDL_events_c_h_
+#define SDL_events_c_h_
+
 #include "../SDL_internal.h"
 
 /* Useful functions and variables from SDL_events.c */
 #include "SDL_events.h"
 #include "SDL_thread.h"
+#include "../video/SDL_sysvideo.h"
+
 #include "SDL_clipboardevents_c.h"
+#include "SDL_displayevents_c.h"
 #include "SDL_dropevents_c.h"
 #include "SDL_gesture_c.h"
 #include "SDL_keyboard_c.h"
@@ -46,4 +53,6 @@ extern void SDL_QuitQuit(void);
 
 extern void SDL_SendPendingQuit(void);
 
+#endif /* SDL_events_c_h_ */
+
 /* vi: set ts=4 sw=4 expandtab: */

Engine/lib/sdl/src/events/SDL_mouse.c

@@ -33,12 +33,38 @@
 
 /* The mouse state */
 static SDL_Mouse SDL_mouse;
-static Uint32 SDL_double_click_time = 500;
-static int SDL_double_click_radius = 1;
 
 static int
 SDL_PrivateSendMouseMotion(SDL_Window * window, SDL_MouseID mouseID, int relative, int x, int y);
 
+static void SDLCALL
+SDL_MouseDoubleClickTimeChanged(void *userdata, const char *name, const char *oldValue, const char *hint)
+{
+    SDL_Mouse *mouse = (SDL_Mouse *)userdata;
+
+    if (hint && *hint) {
+        mouse->double_click_time = SDL_atoi(hint);
+    } else {
+#ifdef __WIN32__
+        mouse->double_click_time = GetDoubleClickTime();
+#else
+        mouse->double_click_time = 500;
+#endif
+    }
+}
+
+static void SDLCALL
+SDL_MouseDoubleClickRadiusChanged(void *userdata, const char *name, const char *oldValue, const char *hint)
+{
+    SDL_Mouse *mouse = (SDL_Mouse *)userdata;
+
+    if (hint && *hint) {
+        mouse->double_click_radius = SDL_atoi(hint);
+    } else {
+        mouse->double_click_radius = 32;    /* 32 pixels seems about right for touch interfaces */
+    }
+}
+
 static void SDLCALL
 SDL_MouseNormalSpeedScaleChanged(void *userdata, const char *name, const char *oldValue, const char *hint)
 {
@@ -83,6 +109,12 @@ SDL_MouseInit(void)
 
     SDL_zerop(mouse);
 
+    SDL_AddHintCallback(SDL_HINT_MOUSE_DOUBLE_CLICK_TIME,
+                        SDL_MouseDoubleClickTimeChanged, mouse);
+
+    SDL_AddHintCallback(SDL_HINT_MOUSE_DOUBLE_CLICK_RADIUS,
+                        SDL_MouseDoubleClickRadiusChanged, mouse);
+
     SDL_AddHintCallback(SDL_HINT_MOUSE_NORMAL_SPEED_SCALE,
                         SDL_MouseNormalSpeedScaleChanged, mouse);
 
@@ -114,12 +146,6 @@ SDL_GetMouse(void)
     return &SDL_mouse;
 }
 
-void
-SDL_SetDoubleClickTime(Uint32 interval)
-{
-    SDL_double_click_time = interval;
-}
-
 SDL_Window *
 SDL_GetMouseFocus(void)
 {
@@ -454,9 +480,9 @@ SDL_PrivateSendMouseButton(SDL_Window * window, SDL_MouseID mouseID, Uint8 state
             if (state == SDL_PRESSED) {
                 Uint32 now = SDL_GetTicks();
 
-                if (SDL_TICKS_PASSED(now, clickstate->last_timestamp + SDL_double_click_time) ||
-                    SDL_abs(mouse->x - clickstate->last_x) > SDL_double_click_radius ||
-                    SDL_abs(mouse->y - clickstate->last_y) > SDL_double_click_radius) {
+                if (SDL_TICKS_PASSED(now, clickstate->last_timestamp + mouse->double_click_time) ||
+                    SDL_abs(mouse->x - clickstate->last_x) > mouse->double_click_radius ||
+                    SDL_abs(mouse->y - clickstate->last_y) > mouse->double_click_radius) {
                     clickstate->click_count = 0;
                 }
                 clickstate->last_timestamp = now;
@@ -688,6 +714,7 @@ static SDL_bool
 ShouldUseRelativeModeWarp(SDL_Mouse *mouse)
 {
     if (!mouse->SetRelativeMouseMode) {
+        SDL_assert(mouse->WarpMouse);   /* Need this functionality for relative mode warp implementation */
         return SDL_TRUE;
     }
 
@@ -720,6 +747,9 @@ SDL_SetRelativeMouseMode(SDL_bool enabled)
     } else if (mouse->SetRelativeMouseMode(enabled) < 0) {
         if (enabled) {
             /* Fall back to warp mode if native relative mode failed */
+            if (!mouse->WarpMouse) {
+                return SDL_SetError("No relative mode implementation available");
+            }
             mouse->relative_mode_warp = SDL_TRUE;
         }
     }

Engine/lib/sdl/src/events/SDL_mouse_c.h

@@ -90,6 +90,8 @@ typedef struct
     float relative_speed_scale;
     float scale_accum_x;
     float scale_accum_y;
+    Uint32 double_click_time;
+    int double_click_radius;
     SDL_bool touch_mouse_events;
 
     /* Data for double-click tracking */
@@ -112,9 +114,6 @@ extern int SDL_MouseInit(void);
 /* Get the mouse state structure */
 SDL_Mouse *SDL_GetMouse(void);
 
-/* Set the default double-click interval */
-extern void SDL_SetDoubleClickTime(Uint32 interval);
-
 /* Set the default mouse cursor */
 extern void SDL_SetDefaultCursor(SDL_Cursor * cursor);
 

Engine/lib/sdl/src/events/SDL_windowevents.c

@@ -25,30 +25,16 @@
 #include "SDL_events.h"
 #include "SDL_events_c.h"
 #include "SDL_mouse_c.h"
-#include "../video/SDL_sysvideo.h"
 
 
 static int SDLCALL
-RemovePendingResizedEvents(void * userdata, SDL_Event *event)
+RemovePendingSizeChangedAndResizedEvents(void * userdata, SDL_Event *event)
 {
     SDL_Event *new_event = (SDL_Event *)userdata;
 
     if (event->type == SDL_WINDOWEVENT &&
-        event->window.event == SDL_WINDOWEVENT_RESIZED &&
-        event->window.windowID == new_event->window.windowID) {
-        /* We're about to post a new size event, drop the old one */
-        return 0;
-    }
-    return 1;
-}
-
-static int SDLCALL
-RemovePendingSizeChangedEvents(void * userdata, SDL_Event *event)
-{
-    SDL_Event *new_event = (SDL_Event *)userdata;
-
-    if (event->type == SDL_WINDOWEVENT &&
-        event->window.event == SDL_WINDOWEVENT_SIZE_CHANGED &&
+        (event->window.event == SDL_WINDOWEVENT_SIZE_CHANGED ||
+         event->window.event == SDL_WINDOWEVENT_RESIZED) &&
         event->window.windowID == new_event->window.windowID) {
         /* We're about to post a new size event, drop the old one */
         return 0;
@@ -200,11 +186,8 @@ SDL_SendWindowEvent(SDL_Window * window, Uint8 windowevent, int data1,
         event.window.windowID = window->id;
 
         /* Fixes queue overflow with resize events that aren't processed */
-        if (windowevent == SDL_WINDOWEVENT_RESIZED) {
-            SDL_FilterEvents(RemovePendingResizedEvents, &event);
-        }
         if (windowevent == SDL_WINDOWEVENT_SIZE_CHANGED) {
-            SDL_FilterEvents(RemovePendingSizeChangedEvents, &event);
+            SDL_FilterEvents(RemovePendingSizeChangedAndResizedEvents, &event);
         }
         if (windowevent == SDL_WINDOWEVENT_MOVED) {
             SDL_FilterEvents(RemovePendingMoveEvents, &event);

Engine/lib/sdl/src/events/scancodes_xfree86.h

@@ -18,6 +18,10 @@
      misrepresented as being the original software.
   3. This notice may not be removed or altered from any source distribution.
 */
+
+#ifndef scancodes_xfree86_h_
+#define scancodes_xfree86_h_
+
 #include "../../include/SDL_scancode.h"
 
 /* XFree86 key code to SDL scancode mapping table
@@ -503,4 +507,6 @@ static const SDL_Scancode xvnc_scancode_table[] = {
     /*  80 */   SDL_SCANCODE_F12,
 };
 
+#endif /* scancodes_xfree86_h_ */
+
 /* *INDENT-ON* */