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Document menu_event.c

This commit is contained in:
twinaphex 2017-07-31 18:26:18 +02:00
parent 3687a706b9
commit 14d66749cc
2 changed files with 52 additions and 2 deletions
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31
menu/menu_event.c
View File

@ -38,6 +38,10 @@
static unsigned char menu_keyboard_key_state[RETROK_LAST] = {0};
/* This function gets called for handling pointer events.
*
* Pointer events are touchscreen events that are spawned
* by touchpad/touchscreen. */
static int menu_event_pointer(unsigned *action)
{
rarch_joypad_info_t joypad_info;
@ -83,16 +87,24 @@ static int menu_event_pointer(unsigned *action)
return 0;
}
/* Check if a specific keyboard key has been pressed. */
unsigned char menu_event_kb_is_set(enum retro_key key)
{
return menu_keyboard_key_state[key];
}
/* Set a specific keyboard key latch. */
static void menu_event_kb_set_internal(unsigned idx, unsigned char key)
{
menu_keyboard_key_state[idx] = key;
}
/* Set a specific keyboard key.
*
* 'down' sets the latch (true would
* mean the key is being pressed down, while 'false' would mean that
* the key has been released).
**/
void menu_event_kb_set(bool down, enum retro_key key)
{
if (key == RETROK_UNKNOWN)
@ -106,6 +118,25 @@ void menu_event_kb_set(bool down, enum retro_key key)
menu_event_kb_set_internal(key, ((menu_event_kb_is_set(key) & 1) << 1) | down);
}
/*
* This function gets called in order to process all input events
* for the current frame.
*
* Sends input code to menu for one frame.
*
* It uses as input the local variables' input' and 'trigger_input'.
*
* Mouse and touch input events get processed inside this function.
*
* NOTE: 'input' and 'trigger_input' is sourced from the keyboard and/or
* the gamepad. It does not contain input state derived from the mouse
* and/or touch - this gets dealt with separately within this function.
*
* TODO/FIXME - maybe needs to be overhauled so we can send multiple
* events per frame if we want to, and we shouldn't send the
* entire button state either but do a separate event per button
* state.
*/
unsigned menu_event(uint64_t input, uint64_t trigger_input)
{
menu_animation_ctx_delta_t delta;

23
menu/menu_event.h
View File

@ -25,17 +25,36 @@
RETRO_BEGIN_DECLS
/* Send input code to menu for one frame.
/*
* This function gets called in order to process all input events
* for the current frame.
*
* TODO/FIXME - needs to be overhauled so we can send multiple
* Sends input code to menu for one frame.
*
* It uses as input the local variables' input' and 'trigger_input'.
*
* Mouse and touch input events get processed inside this function.
*
* NOTE: 'input' and 'trigger_input' is sourced from the keyboard and/or
* the gamepad. It does not contain input state derived from the mouse
* and/or touch - this gets dealt with separately within this function.
*
* TODO/FIXME - maybe needs to be overhauled so we can send multiple
* events per frame if we want to, and we shouldn't send the
* entire button state either but do a separate event per button
* state.
*/
unsigned menu_event(uint64_t input, uint64_t trigger_state);
/* Set a specific keyboard key.
*
* 'down' sets the latch (true would
* mean the key is being pressed down, while 'false' would mean that
* the key has been released).
**/
void menu_event_kb_set(bool down, enum retro_key key);
/* Check if a specific keyboard key has been pressed. */
unsigned char menu_event_kb_is_set(enum retro_key key);
RETRO_END_DECLS