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_ikbdevents.c     | 124 +++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 apps/plugins/sdl/src/video/ataricommon/SDL_ikbdevents.c

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

diff --git a/apps/plugins/sdl/src/video/ataricommon/SDL_ikbdevents.c b/apps/plugins/sdl/src/video/ataricommon/SDL_ikbdevents.c
new file mode 100644
index 0000000000..35fc5cb71a
--- /dev/null
+++ b/apps/plugins/sdl/src/video/ataricommon/SDL_ikbdevents.c
@@ -0,0 +1,124 @@
+/*
+    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"
+
+/*
+ *	Atari keyboard events manager, using hardware IKBD
+ *
+ *	Patrice Mandin
+ */
+
+/* Mint includes */
+#include <mint/osbind.h>
+
+#include "../../events/SDL_sysevents.h"
+#include "../../events/SDL_events_c.h"
+
+#include "SDL_atarikeys.h"
+#include "SDL_atarievents_c.h"
+#include "SDL_ikbdinterrupt_s.h"
+
+#define KEY_PRESSED		0xff
+#define KEY_UNDEFINED	0x80
+#define KEY_RELEASED	0x00
+
+static Uint16 atari_prevmouseb;	/* save state of mouse buttons */
+
+void AtariIkbd_InitOSKeymap(_THIS)
+{
+	SDL_memset((void *) SDL_AtariIkbd_keyboard, KEY_UNDEFINED, sizeof(SDL_AtariIkbd_keyboard));
+
+	/* Now install our handler */
+	SDL_AtariIkbd_mouseb = SDL_AtariIkbd_mousex = SDL_AtariIkbd_mousey = 0;
+	atari_prevmouseb = 0;
+
+	Supexec(SDL_AtariIkbdInstall);
+}
+
+static int atari_GetButton(int button)
+{
+	switch(button)
+	{
+		case 0:
+			return SDL_BUTTON_RIGHT;
+			break;
+		case 1:
+		default:
+			return SDL_BUTTON_LEFT;
+			break;
+	}
+}
+
+void AtariIkbd_PumpEvents(_THIS)
+{
+	int i;
+	SDL_keysym keysym;
+
+	/*--- Send keyboard events ---*/
+
+	for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
+		/* Key pressed ? */
+		if (SDL_AtariIkbd_keyboard[i]==KEY_PRESSED) {
+			SDL_PrivateKeyboard(SDL_PRESSED,
+				SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
+			SDL_AtariIkbd_keyboard[i]=KEY_UNDEFINED;
+		}
+			
+		/* Key released ? */
+		if (SDL_AtariIkbd_keyboard[i]==KEY_RELEASED) {
+			SDL_PrivateKeyboard(SDL_RELEASED,
+				SDL_Atari_TranslateKey(i, &keysym, SDL_FALSE));
+			SDL_AtariIkbd_keyboard[i]=KEY_UNDEFINED;
+		}
+	}
+
+	/*--- Send mouse events ---*/
+
+	/* Mouse motion ? */
+	if (SDL_AtariIkbd_mousex || SDL_AtariIkbd_mousey) {
+		SDL_PrivateMouseMotion(0, 1, SDL_AtariIkbd_mousex, SDL_AtariIkbd_mousey);
+		SDL_AtariIkbd_mousex = SDL_AtariIkbd_mousey = 0;
+	}
+
+	/* Mouse button ? */
+	if (SDL_AtariIkbd_mouseb != atari_prevmouseb) {
+		for (i=0;i<2;i++) {
+			int curbutton, prevbutton;
+
+			curbutton = SDL_AtariIkbd_mouseb & (1<<i);
+			prevbutton = atari_prevmouseb & (1<<i);
+
+			if (curbutton && !prevbutton) {
+				SDL_PrivateMouseButton(SDL_PRESSED, atari_GetButton(i), 0, 0);
+			}
+			if (!curbutton && prevbutton) {
+				SDL_PrivateMouseButton(SDL_RELEASED, atari_GetButton(i), 0, 0);
+			}
+		}
+		atari_prevmouseb = SDL_AtariIkbd_mouseb;
+	}
+}
+
+void AtariIkbd_ShutdownEvents(void)
+{
+	Supexec(SDL_AtariIkbdUninstall);
+}
-- 
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