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
---
 .../sdl/src/video/ataricommon/SDL_ataridevmouse.c  | 159 +++++++++++++++++++++
 1 file changed, 159 insertions(+)
 create mode 100644 apps/plugins/sdl/src/video/ataricommon/SDL_ataridevmouse.c

(limited to 'apps/plugins/sdl/src/video/ataricommon/SDL_ataridevmouse.c')

diff --git a/apps/plugins/sdl/src/video/ataricommon/SDL_ataridevmouse.c b/apps/plugins/sdl/src/video/ataricommon/SDL_ataridevmouse.c
new file mode 100644
index 0000000000..0527380bad
--- /dev/null
+++ b/apps/plugins/sdl/src/video/ataricommon/SDL_ataridevmouse.c
@@ -0,0 +1,159 @@
+/*
+    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"
+
+/*
+	MiNT /dev/mouse driver
+
+	Patrice Mandin
+*/
+
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "../../events/SDL_events_c.h"
+#include "SDL_ataridevmouse_c.h"
+
+/* Defines */
+
+#define DEVICE_NAME	"/dev/mouse"
+
+/* Local variables */
+
+static int handle = -1;
+static int mouseb, prev_mouseb;
+
+/* Functions */
+
+int SDL_AtariDevMouse_Open(void)
+{
+	int r;
+	const char *mousedev;
+
+	/*
+		TODO: Fix the MiNT device driver, that locks mouse for other
+		applications, so this is disabled till fixed
+	 */
+	return 0;
+
+	/* First, try SDL_MOUSEDEV device */
+	mousedev = SDL_getenv("SDL_MOUSEDEV");
+	if (!mousedev) {
+		handle = open(mousedev, 0);
+	}
+
+	/* Failed, try default device */
+	if (handle<0) {
+		handle = open(DEVICE_NAME, 0);
+	}
+
+	if (handle<0) {
+		handle = -1;
+		return 0;
+	}
+
+	/* Set non blocking mode */
+	r = fcntl(handle, F_GETFL, 0);
+	if (r<0) {
+		close(handle);
+		handle = -1;
+		return 0;
+	}
+
+	r |= O_NDELAY;
+
+	r = fcntl(handle, F_SETFL, r);
+	if (r<0) {
+		close(handle);
+		handle = -1;
+		return 0;
+	}
+
+	prev_mouseb = 7;
+	return 1;
+}
+
+void SDL_AtariDevMouse_Close(void)
+{
+	if (handle>0) {
+		close(handle);
+		handle = -1;
+	}
+}
+
+static int atari_GetButton(int button)
+{
+	switch(button)
+	{
+		case 0:
+			return SDL_BUTTON_RIGHT;
+		case 1:
+			return SDL_BUTTON_MIDDLE;
+		default:
+			break;
+	}
+
+	return SDL_BUTTON_LEFT;
+}
+
+void SDL_AtariDevMouse_PostMouseEvents(_THIS, SDL_bool buttonEvents)
+{
+	unsigned char buffer[3];
+	int mousex, mousey;
+
+	if (handle<0) {
+		return;
+	}
+
+	mousex = mousey = 0;
+	while (read(handle, buffer, sizeof(buffer))==sizeof(buffer)) {
+		mouseb = buffer[0] & 7;
+		mousex += (char) buffer[1];
+		mousey += (char) buffer[2];
+
+		/* Mouse button events */
+		if (buttonEvents && (mouseb != prev_mouseb)) {
+			int i;
+
+			for (i=0;i<3;i++) {
+				int curbutton, prevbutton;
+
+				curbutton = mouseb & (1<<i);
+				prevbutton = prev_mouseb & (1<<i);
+			
+				if (curbutton && !prevbutton) {
+					SDL_PrivateMouseButton(SDL_RELEASED, atari_GetButton(i), 0, 0);
+				}
+				if (!curbutton && prevbutton) {
+					SDL_PrivateMouseButton(SDL_PRESSED, atari_GetButton(i), 0, 0);
+				}
+			}
+
+			prev_mouseb = mouseb;
+		}
+	}
+
+	/* Mouse motion event */
+	if (mousex || mousey) {
+		SDL_PrivateMouseMotion(0, 1, mousex, -mousey);
+	}
+}
-- 
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