From a855d6202536ff28e5aae4f22a0f31d8f5b325d0 Mon Sep 17 00:00:00 2001
From: Franklin Wei <git@fwei.tk>
Date: Sat, 21 Jan 2017 15:18:31 -0500
Subject: Port of Duke Nukem 3D

This ports Fabien Sanglard's Chocolate Duke to run on a version of SDL
for Rockbox.

Change-Id: I8f2c4c78af19de10c1633ed7bb7a997b43256dd9
---
 apps/plugins/sdl/src/video/bwindow/SDL_sysmouse.cc | 153 +++++++++++++++++++++
 1 file changed, 153 insertions(+)
 create mode 100644 apps/plugins/sdl/src/video/bwindow/SDL_sysmouse.cc

(limited to 'apps/plugins/sdl/src/video/bwindow/SDL_sysmouse.cc')

diff --git a/apps/plugins/sdl/src/video/bwindow/SDL_sysmouse.cc b/apps/plugins/sdl/src/video/bwindow/SDL_sysmouse.cc
new file mode 100644
index 0000000000..9a557d6286
--- /dev/null
+++ b/apps/plugins/sdl/src/video/bwindow/SDL_sysmouse.cc
@@ -0,0 +1,153 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2012 Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+#include <AppKit.h>
+#include <GameKit.h>
+
+#include "SDL_BWin.h"
+
+extern "C" {
+#include "../SDL_cursor_c.h"
+#include "SDL_sysmouse_c.h"
+
+/* Convert bits to padded bytes */
+#define PADDED_BITS(bits)  ((bits+7)/8)
+
+/* The implementation dependent data for the window manager cursor */
+struct WMcursor {
+	char *bits;
+};
+
+/* Can this be done in the BeOS? */
+WMcursor *BE_CreateWMCursor(_THIS,
+		Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
+{
+	WMcursor *cursor;
+	int allowed_x;
+	int allowed_y;
+	int run, pad, i;
+	char *cptr;
+
+	allowed_x = 16;	/* BeOS limitation */
+	allowed_y = 16;	/* BeOS limitation */
+	if ( (w > allowed_x) || (h > allowed_y) ) {
+		SDL_SetError("Only cursors of dimension (%dx%d) are allowed",
+							allowed_x, allowed_y);
+		return(NULL);
+	}
+
+	/* Allocate the cursor */
+	cursor = (WMcursor *)SDL_malloc(sizeof(WMcursor));
+	if ( cursor == NULL ) {
+		SDL_OutOfMemory();
+		return(NULL);
+	}
+	cursor->bits = (char *)SDL_malloc(4+2*((allowed_x/8)*allowed_y));
+	if ( cursor->bits == NULL ) {
+		SDL_free(cursor);
+		SDL_OutOfMemory();
+		return(NULL);
+	}
+	cursor->bits[0] = allowed_y;		/* Size of the cursor */
+	cursor->bits[1] = 1;			/* Bit depth of cursor */
+	cursor->bits[2] = hot_y;
+	cursor->bits[3] = hot_x;
+	cptr = &cursor->bits[4];
+
+	/* Pad out to the normal cursor size */
+	run = PADDED_BITS(w);
+	pad = PADDED_BITS(allowed_x)-run;
+	for ( i=0; i<h; ++i ) {
+		SDL_memcpy(cptr, data, run);
+		SDL_memset(cptr+run, 0, pad);
+		data += run;
+		cptr += (run+pad);
+	}
+	for ( ; i<allowed_y; ++i ) {
+		SDL_memset(cptr, 0, run+pad);
+		cptr += (run+pad);
+	}
+	for ( i=0; i<h; ++i ) {
+		/* FIXME: The mask should be OR'd with the data to turn 
+		   inverted color pixels black, since inverted color pixels
+		   aren't supported under BeOS.
+		 */
+		SDL_memcpy(cptr, mask, run);
+		SDL_memset(cptr+run, 0, pad);
+		mask += run;
+		cptr += (run+pad);
+	}
+	for ( ; i<allowed_y; ++i ) {
+		SDL_memset(cptr, 0, run+pad);
+		cptr += (run+pad);
+	}
+	return(cursor);
+}
+
+int BE_ShowWMCursor(_THIS, WMcursor *cursor)
+{
+	if ( be_app->Lock() ) {
+		if ( cursor == NULL ) {
+			if ( SDL_BlankCursor != NULL ) {
+				be_app->SetCursor(SDL_BlankCursor->bits);
+			}
+		} else {
+			be_app->SetCursor(cursor->bits);
+		}
+		be_app->Unlock();
+	}
+	return(1);
+}
+
+void BE_FreeWMCursor(_THIS, WMcursor *cursor)
+{
+	SDL_free(cursor->bits);
+	SDL_free(cursor);
+}
+
+/* Implementation by Christian Bauer <cbauer@student.physik.uni-mainz.de> */
+void BE_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
+{
+	BPoint pt;
+	SDL_Win->GetXYOffset(pt.x, pt.y);
+	pt.x += x;
+	pt.y += y;
+	SDL_Win->Lock();
+	SDL_Win->ConvertToScreen(&pt);
+	SDL_Win->Unlock();
+	set_mouse_position((int32)pt.x, (int32)pt.y);
+}
+
+/* Check to see if we need to enter or leave mouse relative mode */
+void BE_CheckMouseMode(_THIS)
+{
+        /* If the mouse is hidden and input is grabbed, we use relative mode */
+        if ( !(SDL_cursorstate & CURSOR_VISIBLE) &&
+             (_this->input_grab != SDL_GRAB_OFF) ) {
+                mouse_relative = 1;
+        } else {
+                mouse_relative = 0;
+        }
+}
+
+}; /* Extern C */
-- 
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