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Some more documentation for input_common.c

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This commit is contained in:
twinaphex 2015-01-10 21:17:34 +01:00
parent e707c401c8
commit 75b6ed9545
2 changed files with 68 additions and 42 deletions
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95
input/input_common.c
View File

@ -24,44 +24,6 @@
#include "../config.h"
#endif
bool input_translate_coord_viewport(int mouse_x, int mouse_y,
int16_t *res_x, int16_t *res_y, int16_t *res_screen_x,
int16_t *res_screen_y)
{
int scaled_screen_x, scaled_screen_y, scaled_x, scaled_y;
struct rarch_viewport vp = {0};
bool have_viewport_info = driver.video && driver.video->viewport_info;
if (!have_viewport_info)
return false;
driver.video->viewport_info(driver.video_data, &vp);
scaled_screen_x = (2 * mouse_x * 0x7fff) / (int)vp.full_width - 0x7fff;
scaled_screen_y = (2 * mouse_y * 0x7fff) / (int)vp.full_height - 0x7fff;
if (scaled_screen_x < -0x7fff || scaled_screen_x > 0x7fff)
scaled_screen_x = -0x8000; /* OOB */
if (scaled_screen_y < -0x7fff || scaled_screen_y > 0x7fff)
scaled_screen_y = -0x8000; /* OOB */
mouse_x -= vp.x;
mouse_y -= vp.y;
scaled_x = (2 * mouse_x * 0x7fff) / (int)vp.width - 0x7fff;
scaled_y = (2 * mouse_y * 0x7fff) / (int)vp.height - 0x7fff;
if (scaled_x < -0x7fff || scaled_x > 0x7fff)
scaled_x = -0x8000; /* OOB */
if (scaled_y < -0x7fff || scaled_y > 0x7fff)
scaled_y = -0x8000; /* OOB */
*res_x = scaled_x;
*res_y = scaled_y;
*res_screen_x = scaled_screen_x;
*res_screen_y = scaled_screen_y;
return true;
}
static const char *bind_user_prefix[MAX_USERS] = {
"input_player1",
"input_player2",
@ -140,13 +102,50 @@ const struct input_bind_map input_config_bind_map[RARCH_BIND_LIST_END_NULL] = {
DECLARE_META_BIND(2, overlay_next, RARCH_OVERLAY_NEXT, "Overlay next"),
DECLARE_META_BIND(2, disk_eject_toggle, RARCH_DISK_EJECT_TOGGLE, "Disk eject toggle"),
DECLARE_META_BIND(2, disk_next, RARCH_DISK_NEXT, "Disk next"),
DECLARE_META_BIND(2, disk_prev, RARCH_DISK_NEXT, "Disk prev"),
DECLARE_META_BIND(2, disk_prev, RARCH_DISK_NEXT, "Disk prev"),
DECLARE_META_BIND(2, grab_mouse_toggle, RARCH_GRAB_MOUSE_TOGGLE, "Grab mouse toggle"),
#ifdef HAVE_MENU
DECLARE_META_BIND(1, menu_toggle, RARCH_MENU_TOGGLE, "Menu toggle"),
#endif
};
bool input_translate_coord_viewport(int mouse_x, int mouse_y,
int16_t *res_x, int16_t *res_y, int16_t *res_screen_x,
int16_t *res_screen_y)
{
int scaled_screen_x, scaled_screen_y, scaled_x, scaled_y;
struct rarch_viewport vp = {0};
bool have_viewport_info = driver.video && driver.video->viewport_info;
if (!have_viewport_info)
return false;
driver.video->viewport_info(driver.video_data, &vp);
scaled_screen_x = (2 * mouse_x * 0x7fff) / (int)vp.full_width - 0x7fff;
scaled_screen_y = (2 * mouse_y * 0x7fff) / (int)vp.full_height - 0x7fff;
if (scaled_screen_x < -0x7fff || scaled_screen_x > 0x7fff)
scaled_screen_x = -0x8000; /* OOB */
if (scaled_screen_y < -0x7fff || scaled_screen_y > 0x7fff)
scaled_screen_y = -0x8000; /* OOB */
mouse_x -= vp.x;
mouse_y -= vp.y;
scaled_x = (2 * mouse_x * 0x7fff) / (int)vp.width - 0x7fff;
scaled_y = (2 * mouse_y * 0x7fff) / (int)vp.height - 0x7fff;
if (scaled_x < -0x7fff || scaled_x > 0x7fff)
scaled_x = -0x8000; /* OOB */
if (scaled_y < -0x7fff || scaled_y > 0x7fff)
scaled_y = -0x8000; /* OOB */
*res_x = scaled_x;
*res_y = scaled_y;
*res_screen_x = scaled_screen_x;
*res_screen_y = scaled_screen_y;
return true;
}
void input_config_parse_key(config_file_t *conf,
const char *prefix, const char *btn,
@ -169,6 +168,14 @@ const char *input_config_get_prefix(unsigned user, bool meta)
return NULL;
}
/**
* input_translate_str_to_bind_id:
* @str : String to translate to bind ID.
*
* Translate string representation to bind ID.
*
* Returns: Bind ID value on success, otherwise RARCH_BIND_LIST_END on not found.
**/
unsigned input_translate_str_to_bind_id(const char *str)
{
unsigned i;
@ -182,6 +189,7 @@ static void parse_hat(struct retro_keybind *bind, const char *str)
{
char *dir = NULL;
uint16_t hat_dir = 0, hat;
if (!bind || !str)
return;
@ -258,7 +266,7 @@ void input_config_parse_joy_axis(config_file_t *conf, const char *prefix,
bind->joyaxis = AXIS_NEG(i_axis);
}
/* Ensure that d-pad emulation doesn't screw this over. */
/* Ensure that D-pad emulation doesn't screw this over. */
bind->orig_joyaxis = bind->joyaxis;
}
@ -384,7 +392,12 @@ void input_push_analog_dpad(struct retro_keybind *binds, unsigned mode)
}
}
/* Restore binds temporarily overridden by input_push_analog_dpad. */
/**
* input_pop_analog_dpad:
* @binds : Binds to modify.
*
* Restores binds temporarily overridden by input_push_analog_dpad().
**/
void input_pop_analog_dpad(struct retro_keybind *binds)
{
unsigned i;

15
input/input_common.h
View File

@ -60,7 +60,14 @@ enum retro_key input_translate_str_to_rk(const char *str);
const char *input_config_get_prefix(unsigned user, bool meta);
/* Returns RARCH_BIND_LIST_END on not found. */
/**
* input_translate_str_to_bind_id:
* @str : String to translate to bind ID.
*
* Translate string representation to bind ID.
*
* Returns: Bind ID value on success, otherwise RARCH_BIND_LIST_END on not found.
**/
unsigned input_translate_str_to_bind_id(const char *str);
void input_config_parse_key(config_file_t *conf,
@ -75,6 +82,12 @@ void input_config_parse_joy_axis(config_file_t *conf, const char *prefix,
void input_push_analog_dpad(struct retro_keybind *binds, unsigned mode);
/**
* input_pop_analog_dpad:
* @binds : Binds to modify.
*
* Restores binds temporarily overridden by input_push_analog_dpad().
**/
void input_pop_analog_dpad(struct retro_keybind *binds);
#ifdef __cplusplus