Renamed 'secondary' to 'backyard' on popular demand ;-))

backyard/platform/c64/ctk/ctk-mouse.c

@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2003, Adam Dunkels.
+ * All rights reserved. 
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions 
+ * are met: 
+ * 1. Redistributions of source code must retain the above copyright 
+ *    notice, this list of conditions and the following disclaimer. 
+ * 2. Redistributions in binary form must reproduce the above
+ *    copyright notice, this list of conditions and the following
+ *    disclaimer in the documentation and/or other materials provided
+ *    with the distribution. 
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior
+ *    written permission.  
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
+ *
+ * This file is part of the "ctk" console GUI toolkit for cc65
+ *
+ * $Id: ctk-mouse.c,v 1.1 2007/05/23 23:11:27 oliverschmidt Exp $
+ *
+ */
+
+#include "ctk/ctk.h"
+#include "ctk-mouse.h"
+#include "ctk-conf.h"
+
+#if CTK_CONF_MOUSE_SUPPORT
+
+unsigned short ctk_mouse_joyy, ctk_mouse_joyx;
+unsigned char ctk_mouse_firebutton;
+
+extern void ctk_mouse_asm_irq(void);
+
+/*-----------------------------------------------------------------------------------*/
+#pragma optimize(push, off)
+void
+ctk_mouse_init(void)
+{
+  /* Place mouse pointer at the middle of the screen. */
+  ctk_mouse_joyx = 160;
+  ctk_mouse_joyy = 100;
+  
+  /* Setup and start IRQ */
+  asm("sei");
+  asm("lda #<%v", ctk_mouse_asm_irq);
+  asm("sta $0314");
+  asm("lda #>%v", ctk_mouse_asm_irq);
+  asm("sta $0315");   
+  asm("cli");
+  
+}
+#pragma optimize(pop)
+/*-----------------------------------------------------------------------------------*/
+unsigned short
+ctk_mouse_x(void)
+{
+  if(ctk_mouse_joyx >= 342) {
+    ctk_mouse_joyx = 0;
+  } else if(ctk_mouse_joyx >= 320) {
+    ctk_mouse_joyx = 319;
+  }
+  return ctk_mouse_joyx;
+}
+/*-----------------------------------------------------------------------------------*/
+unsigned short
+ctk_mouse_y(void)
+{
+  return ctk_mouse_joyy;
+}
+/*-----------------------------------------------------------------------------------*/
+unsigned char
+ctk_mouse_button(void)
+{
+  return ctk_mouse_firebutton;
+}
+/*-----------------------------------------------------------------------------------*/
+unsigned char
+ctk_mouse_xtoc(unsigned short x)
+{
+  return x / 8;
+}
+/*-----------------------------------------------------------------------------------*/
+unsigned char
+ctk_mouse_ytoc(unsigned short y)
+{
+  return y / 8;
+}
+/*-----------------------------------------------------------------------------------*/
+#pragma optimize(push, off)
+void
+ctk_mouse_hide(void)
+{
+  /* Turn off sprites 0 and 1 */
+  asm("lda #0");
+  asm("sta $d015"); 
+}
+#pragma optimize(pop)
+/*-----------------------------------------------------------------------------------*/
+#pragma optimize(push, off)
+void
+ctk_mouse_show(void)
+{  
+  /* Turn on sprites 0 and 1 */
+  asm("lda #3");
+  asm("sta $d015"); 
+}
+#pragma optimize(pop)
+/*-----------------------------------------------------------------------------------*/
+#endif /* CTK_CONF_MOUSE_SUPPORT */