*initHEADmaster

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diff --git a/source/3rd-party/SDL2/src/video/cocoa/SDL_cocoashape.m b/source/3rd-party/SDL2/src/video/cocoa/SDL_cocoashape.m
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+++ b/source/3rd-party/SDL2/src/video/cocoa/SDL_cocoashape.m
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+/*
+  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"
+
+#if SDL_VIDEO_DRIVER_COCOA
+
+#include "SDL_cocoavideo.h"
+#include "SDL_shape.h"
+#include "SDL_cocoashape.h"
+#include "../SDL_sysvideo.h"
+#include "SDL_assert.h"
+
+SDL_WindowShaper*
+Cocoa_CreateShaper(SDL_Window* window)
+{
+    SDL_WindowData* windata = (SDL_WindowData*)window->driverdata;
+    [windata->nswindow setOpaque:NO];
+
+    [windata->nswindow setStyleMask:NSWindowStyleMaskBorderless];
+
+    SDL_WindowShaper* result = result = malloc(sizeof(SDL_WindowShaper));
+    result->window = window;
+    result->mode.mode = ShapeModeDefault;
+    result->mode.parameters.binarizationCutoff = 1;
+    result->userx = result->usery = 0;
+    window->shaper = result;
+
+    SDL_ShapeData* data = malloc(sizeof(SDL_ShapeData));
+    result->driverdata = data;
+    data->context = [windata->nswindow graphicsContext];
+    data->saved = SDL_FALSE;
+    data->shape = NULL;
+
+    int resized_properly = Cocoa_ResizeWindowShape(window);
+    SDL_assert(resized_properly == 0);
+    return result;
+}
+
+typedef struct {
+    NSView* view;
+    NSBezierPath* path;
+    SDL_Window* window;
+} SDL_CocoaClosure;
+
+void
+ConvertRects(SDL_ShapeTree* tree, void* closure)
+{
+    SDL_CocoaClosure* data = (SDL_CocoaClosure*)closure;
+    if(tree->kind == OpaqueShape) {
+        NSRect rect = NSMakeRect(tree->data.shape.x,data->window->h - tree->data.shape.y,tree->data.shape.w,tree->data.shape.h);
+        [data->path appendBezierPathWithRect:[data->view convertRect:rect toView:nil]];
+    }
+}
+
+int
+Cocoa_SetWindowShape(SDL_WindowShaper *shaper, SDL_Surface *shape, SDL_WindowShapeMode *shape_mode)
+{ @autoreleasepool
+{
+    SDL_ShapeData* data = (SDL_ShapeData*)shaper->driverdata;
+    SDL_WindowData* windata = (SDL_WindowData*)shaper->window->driverdata;
+    SDL_CocoaClosure closure;
+    if(data->saved == SDL_TRUE) {
+        [data->context restoreGraphicsState];
+        data->saved = SDL_FALSE;
+    }
+
+    /*[data->context saveGraphicsState];*/
+    /*data->saved = SDL_TRUE;*/
+    [NSGraphicsContext setCurrentContext:data->context];
+
+    [[NSColor clearColor] set];
+    NSRectFill([[windata->nswindow contentView] frame]);
+    data->shape = SDL_CalculateShapeTree(*shape_mode,shape);
+
+    closure.view = [windata->nswindow contentView];
+    closure.path = [NSBezierPath bezierPath];
+    closure.window = shaper->window;
+    SDL_TraverseShapeTree(data->shape,&ConvertRects,&closure);
+    [closure.path addClip];
+
+    return 0;
+}}
+
+int
+Cocoa_ResizeWindowShape(SDL_Window *window)
+{
+    SDL_ShapeData* data = window->shaper->driverdata;
+    SDL_assert(data != NULL);
+    return 0;
+}
+
+#endif /* SDL_VIDEO_DRIVER_COCOA */
+
+/* vi: set ts=4 sw=4 expandtab: */