Make mouse driver loadable
git-svn-id: svn://svn.cc65.org/cc65/trunk@2852 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz
@@ -6,10 +6,12 @@
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/* */
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/* */
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/* */
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/* (C) 1999-2001 Ullrich von Bassewitz */
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/* Wacholderweg 14 */
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/* D-70597 Stuttgart */
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/* EMail: uz@musoftware.de */
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/* (C) 2003 Ullrich von Bassewitz */
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/* R<EFBFBD>merstra<EFBFBD>e 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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@@ -38,26 +40,18 @@
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/* Define __MOUSE__ for systems that support a mouse */
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#if defined(__ATARI__) || defined(__C64__) || defined(__C128__) || defined(__CBM510__) || defined(__GEOS__)
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# define __MOUSE__
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#else
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# error The target system does not support a mouse!
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# endif
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/*****************************************************************************/
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/* Definitions */
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/*****************************************************************************/
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/* The different mouse types */
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#define MOUSE_TRAKBALL 0
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#define MOUSE_ST 1
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#define MOUSE_AMIGA 2
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#define MOUSE_CBM1351 3 /* 1351 mouse */
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/* Error codes */
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#define MOUSE_ERR_OK 0 /* No error */
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#define MOUSE_ERR_NO_DRIVER 1 /* No driver available */
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#define MOUSE_ERR_CANNOT_LOAD 2 /* Error loading driver */
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#define MOUSE_ERR_INV_DRIVER 3 /* Invalid driver */
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#define MOUSE_ERR_NO_DEVICE 4 /* Mouse hardware not found */
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/* Mouse button masks */
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#define MOUSE_BTN_LEFT 0x10
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@@ -75,6 +69,24 @@ struct mouse_info {
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unsigned char buttons; /* Mouse button mask */
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};
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/* Structure containing mouse callback functions. These functions are declared
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* in C notation here, but they cannot be C functions (at least not easily),
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* since they may be called from within an interrupt.
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*/
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struct mouse_callbacks {
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void (*hide) (void);
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/* Hide the mouse cursor. */
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void (*show) (void);
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/* Show the mouse cursor */
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void (*move) (void);
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/* Move the mouse cursor. This function is called, even when the cursor
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* is currently invisible.
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*/
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};
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/*****************************************************************************/
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@@ -83,45 +95,29 @@ struct mouse_info {
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unsigned char __fastcall__ mouse_init (unsigned char type);
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/* Setup the mouse interrupt handler. The mouse routines will use a predefined
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* system resource for the mouse port and mouse cursor:
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* C64: Port #0, Sprite #0
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* C128: Port #0, Sprite #0
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* GEOS: System defined port, Sprite #0
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* Atari: Port #0, PM #0
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* However, the mouse routines will not initialize this cursor or set a
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* specific shape - this is platform dependent and up to the user program.
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* The mouse cursor is moved if the mouse is moved (provided that the mouse
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* cursor is visible), and switched on and off in the show and hide functions.
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* The type parameter is needed on some systems to determine the type of
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* the mouse connected to the given port, on others it is ignored.
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* After calling this function, the mouse is invisble, the cursor is placed
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* at 0/0 (upper left corner), and the bounding box is reset to cover the
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* whole screen. Call mouse_show once to make the mouse cursor visible.
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* The function will return zero if a mouse was not found and a non zero
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* value if the mouse was found and initialized (or if there is no way to
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* detect a mouse reliably).
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*/
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unsigned char __fastcall__ mouse_set_callbacks (const struct mouse_callbacks* c);
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/* Sets the callbacks to be used by the driver. */
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void __fastcall__ mouse_done (void);
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/* Disable the mouse, remove the interrupt handler. This function MUST be
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* called before terminating the program, otherwise odd things may happen.
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* If in doubt, install an exit handler (using atexit) that calls this
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* function.
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*/
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unsigned char __fastcall__ mouse_load_driver (const char* driver);
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/* Load and install a mouse driver, return an error code. */
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unsigned char __fastcall__ mouse_unload (void);
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/* Uninstall, then unload the currently loaded driver. */
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unsigned char __fastcall__ mouse_install (void* driver);
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/* Install an already loaded driver. Returns an error code. */
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unsigned char __fastcall__ mouse_uninstall (void);
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/* Uninstall the currently loaded driver. Returns an error code. */
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void __fastcall__ mouse_hide (void);
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/* Hide the mouse. This function doesn't do anything visible if no sprite is
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* used. The function manages a counter and may be called more than once.
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* For each call to mouse_hide there must be a call to mouse_show to make
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/* Hide the mouse. The function manages a counter and may be called more than
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* once. For each call to mouse_hide there must be a call to mouse_show to make
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* the mouse visible again.
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*/
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void __fastcall__ mouse_show (void);
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/* Show the mouse. This function doesn't do anything visible if no sprite is
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* used. See mouse_hide for more information.
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*/
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/* Show the mouse. See mouse_hide for more information. */
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void __fastcall__ mouse_box (int minx, int miny, int maxx, int maxy);
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/* Set the bounding box for the mouse pointer movement. The mouse X and Y
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