Use C comments

This commit is contained in:
twinaphex 2017-02-19 04:37:40 +01:00
parent e51cfce8e3
commit 75188800b1

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@ -47,7 +47,7 @@
#define MAX_TOUCH 16 #define MAX_TOUCH 16
#define MAX_NUM_KEYBOARDS 3 #define MAX_NUM_KEYBOARDS 3
// If using an SDK lower than 14 then add missing mouse button codes /* If using an SDK lower than 14 then add missing mouse button codes */
#if __ANDROID_API__ < 14 #if __ANDROID_API__ < 14
enum { enum {
AMOTION_EVENT_BUTTON_PRIMARY = 1 << 0, AMOTION_EVENT_BUTTON_PRIMARY = 1 << 0,
@ -58,13 +58,13 @@ enum {
}; };
#endif #endif
// If using an SDK lower than 24 then add missing relative axis codes /* If using an SDK lower than 24 then add missing relative axis codes */
#if __ANDROID_API__ < 24 #if __ANDROID_API__ < 24
#define AMOTION_EVENT_AXIS_RELATIVE_X 27 #define AMOTION_EVENT_AXIS_RELATIVE_X 27
#define AMOTION_EVENT_AXIS_RELATIVE_Y 28 #define AMOTION_EVENT_AXIS_RELATIVE_Y 28
#endif #endif
// Use this to enable/disable using the touch screen as mouse /* Use this to enable/disable using the touch screen as mouse */
#define ENABLE_TOUCH_SCREEN_MOUSE 1 #define ENABLE_TOUCH_SCREEN_MOUSE 1
typedef struct typedef struct
@ -526,8 +526,9 @@ static void *android_input_init(const char *joypad_driver)
static int android_check_quick_tap(android_input_t *android) static int android_check_quick_tap(android_input_t *android)
{ {
// Check if the touch screen has been been quick tapped and then not touched again for 200ms /* Check if the touch screen has been been quick tapped
// If so then return true and deactivate quick tap timer * and then not touched again for 200ms
* If so then return true and deactivate quick tap timer */
retro_time_t now = cpu_features_get_time_usec(); retro_time_t now = cpu_features_get_time_usec();
if(android->quick_tap_time && (now/1000 - android->quick_tap_time/1000000) >= 200) if(android->quick_tap_time && (now/1000 - android->quick_tap_time/1000000) >= 200)
{ {
@ -554,10 +555,10 @@ static int16_t android_mouse_state(android_input_t *android, unsigned id)
break; break;
case RETRO_DEVICE_ID_MOUSE_X: case RETRO_DEVICE_ID_MOUSE_X:
val = android->mouse_x_delta; val = android->mouse_x_delta;
android->mouse_x_delta = 0; // flush delta after it has been read android->mouse_x_delta = 0; /* flush delta after it has been read */
break; break;
case RETRO_DEVICE_ID_MOUSE_Y: case RETRO_DEVICE_ID_MOUSE_Y:
val = android->mouse_y_delta; // flush delta after it has been read val = android->mouse_y_delta; /* flush delta after it has been read */
android->mouse_y_delta = 0; android->mouse_y_delta = 0;
break; break;
} }
@ -572,10 +573,10 @@ static int16_t android_lightgun_device_state(android_input_t *android, unsigned
{ {
case RETRO_DEVICE_ID_LIGHTGUN_X: case RETRO_DEVICE_ID_LIGHTGUN_X:
val = android->mouse_x_delta; val = android->mouse_x_delta;
android->mouse_x_delta = 0; // flush delta after it has been read android->mouse_x_delta = 0; /* flush delta after it has been read */
break; break;
case RETRO_DEVICE_ID_LIGHTGUN_Y: case RETRO_DEVICE_ID_LIGHTGUN_Y:
val = android->mouse_y_delta; // flush delta after it has been read val = android->mouse_y_delta; /* flush delta after it has been read */
android->mouse_y_delta = 0; android->mouse_y_delta = 0;
break; break;
case RETRO_DEVICE_ID_LIGHTGUN_TRIGGER: case RETRO_DEVICE_ID_LIGHTGUN_TRIGGER:
@ -598,13 +599,17 @@ static int16_t android_lightgun_device_state(android_input_t *android, unsigned
return val; return val;
} }
static INLINE void android_mouse_calculate_deltas(android_input_t *android, AInputEvent *event,size_t motion_ptr) static INLINE void android_mouse_calculate_deltas(android_input_t *android,
AInputEvent *event,size_t motion_ptr)
{ {
// Adjust mouse speed based on ratio between core resolution and system resolution /* Adjust mouse speed based on ratio
float x_scale = 1; * between core resolution and system resolution */
float y_scale = 1; float x, y;
video_viewport_t *custom_vp = video_viewport_get_custom(); float x_scale = 1;
float y_scale = 1;
video_viewport_t *custom_vp = video_viewport_get_custom();
struct retro_system_av_info *av_info = video_viewport_get_system_av_info(); struct retro_system_av_info *av_info = video_viewport_get_system_av_info();
if(custom_vp && av_info) if(custom_vp && av_info)
{ {
const struct retro_game_geometry *geom = (const struct retro_game_geometry*)&av_info->geometry; const struct retro_game_geometry *geom = (const struct retro_game_geometry*)&av_info->geometry;
@ -612,14 +617,15 @@ static INLINE void android_mouse_calculate_deltas(android_input_t *android, AInp
y_scale = 2 * (float)geom->base_height / (float)custom_vp->height; y_scale = 2 * (float)geom->base_height / (float)custom_vp->height;
} }
// This axis is only available on Android Nougat and on Android devices with NVIDIA extensions /* This axis is only available on Android Nougat and on Android devices with NVIDIA extensions */
float x = AMotionEvent_getAxisValue(event,AMOTION_EVENT_AXIS_RELATIVE_X, motion_ptr); x = AMotionEvent_getAxisValue(event,AMOTION_EVENT_AXIS_RELATIVE_X, motion_ptr);
float y = AMotionEvent_getAxisValue(event,AMOTION_EVENT_AXIS_RELATIVE_Y, motion_ptr); y = AMotionEvent_getAxisValue(event,AMOTION_EVENT_AXIS_RELATIVE_Y, motion_ptr);
// If AXIS_RELATIVE had 0 values it might be because we're not running Android Nougat or on a device /* If AXIS_RELATIVE had 0 values it might be because we're not running Android Nougat or on a device
// with NVIDIA extension, so re-calculate deltas based on AXIS_X and AXIS_Y. This has limitations * with NVIDIA extension, so re-calculate deltas based on AXIS_X and AXIS_Y. This has limitations
// compared to AXIS_RELATIVE because once the Android mouse cursor hits the edge of the screen it is * compared to AXIS_RELATIVE because once the Android mouse cursor hits the edge of the screen it is
// not possible to move the in-game mouse any further in that direction. * not possible to move the in-game mouse any further in that direction.
*/
if (!x && !y) if (!x && !y)
{ {
x = (AMotionEvent_getX(event, motion_ptr) - android->mouse_x_prev); x = (AMotionEvent_getX(event, motion_ptr) - android->mouse_x_prev);
@ -641,7 +647,7 @@ static INLINE int android_input_poll_event_type_motion(
bool keyup; bool keyup;
int btn; int btn;
// Only handle events from a touchscreen or mouse /* Only handle events from a touchscreen or mouse */
if (!(source & (AINPUT_SOURCE_TOUCHSCREEN | AINPUT_SOURCE_MOUSE))) if (!(source & (AINPUT_SOURCE_TOUCHSCREEN | AINPUT_SOURCE_MOUSE)))
return 1; return 1;
@ -655,10 +661,11 @@ static INLINE int android_input_poll_event_type_motion(
(source == AINPUT_SOURCE_MOUSE && (source == AINPUT_SOURCE_MOUSE &&
action != AMOTION_EVENT_ACTION_DOWN); action != AMOTION_EVENT_ACTION_DOWN);
// If source is mouse then calculate button state and mouse deltas and don't process as touchscreen event /* If source is mouse then calculate button state
* and mouse deltas and don't process as touchscreen event */
if (source == AINPUT_SOURCE_MOUSE) if (source == AINPUT_SOURCE_MOUSE)
{ {
// getButtonState requires API level 14 /* getButtonState requires API level 14 */
if (p_AMotionEvent_getButtonState) if (p_AMotionEvent_getButtonState)
{ {
btn = (int)AMotionEvent_getButtonState(event); btn = (int)AMotionEvent_getButtonState(event);
@ -668,7 +675,8 @@ static INLINE int android_input_poll_event_type_motion(
} }
else else
{ {
// If getButtonState is not available then treat all MotionEvent.ACTION_DOWN as left button presses /* If getButtonState is not available
* then treat all MotionEvent.ACTION_DOWN as left button presses */
if (action == AMOTION_EVENT_ACTION_DOWN) if (action == AMOTION_EVENT_ACTION_DOWN)
android->mouse_l = 1; android->mouse_l = 1;
if (action == AMOTION_EVENT_ACTION_UP) if (action == AMOTION_EVENT_ACTION_UP)
@ -684,7 +692,8 @@ static INLINE int android_input_poll_event_type_motion(
{ {
if(action == AMOTION_EVENT_ACTION_UP && ENABLE_TOUCH_SCREEN_MOUSE) if(action == AMOTION_EVENT_ACTION_UP && ENABLE_TOUCH_SCREEN_MOUSE)
{ {
// If touchscreen was pressed for less than 200ms then register time stamp of a quick tap /* If touchscreen was pressed for less than 200ms
* then register time stamp of a quick tap */
if((AMotionEvent_getEventTime(event)-AMotionEvent_getDownTime(event))/1000000 < 200) if((AMotionEvent_getEventTime(event)-AMotionEvent_getDownTime(event))/1000000 < 200)
android->quick_tap_time = AMotionEvent_getEventTime(event); android->quick_tap_time = AMotionEvent_getEventTime(event);
android->mouse_l = 0; android->mouse_l = 0;
@ -702,13 +711,15 @@ static INLINE int android_input_poll_event_type_motion(
if(action == AMOTION_EVENT_ACTION_DOWN && ENABLE_TOUCH_SCREEN_MOUSE) if(action == AMOTION_EVENT_ACTION_DOWN && ENABLE_TOUCH_SCREEN_MOUSE)
{ {
// When touch screen is pressed, set mouse previous position to current position /* When touch screen is pressed, set mouse
// before starting to calculate mouse movement deltas. * previous position to current position
* before starting to calculate mouse movement deltas. */
android->mouse_x_prev = AMotionEvent_getX(event, motion_ptr); android->mouse_x_prev = AMotionEvent_getX(event, motion_ptr);
android->mouse_y_prev = AMotionEvent_getY(event, motion_ptr); android->mouse_y_prev = AMotionEvent_getY(event, motion_ptr);
// If another touch happened within 200ms after a quick tap then cancel the quick tap /* If another touch happened within 200ms after a quick tap
// and register left mouse button as being held down * then cancel the quick tap and register left mouse button
* as being held down */
if((AMotionEvent_getEventTime(event) - android->quick_tap_time)/1000000 < 200) if((AMotionEvent_getEventTime(event) - android->quick_tap_time)/1000000 < 200)
{ {
android->quick_tap_time = 0; android->quick_tap_time = 0;
@ -739,7 +750,8 @@ static INLINE int android_input_poll_event_type_motion(
} }
} }
// If more than one pointer detected then count it as a mouse right click /* If more than one pointer detected
* then count it as a mouse right click */
if (ENABLE_TOUCH_SCREEN_MOUSE) if (ENABLE_TOUCH_SCREEN_MOUSE)
android->mouse_r = (android->pointer_count == 2); android->mouse_r = (android->pointer_count == 2);
@ -757,15 +769,18 @@ bool is_keyboard_id(int id)
static INLINE void android_input_poll_event_type_keyboard( static INLINE void android_input_poll_event_type_keyboard(
AInputEvent *event, int keycode, int *handled) AInputEvent *event, int keycode, int *handled)
{ {
int keydown = (AKeyEvent_getAction(event) == AKEY_EVENT_ACTION_DOWN); int keydown = (AKeyEvent_getAction(event) == AKEY_EVENT_ACTION_DOWN);
unsigned keyboardcode = input_keymaps_translate_keysym_to_rk(keycode); unsigned keyboardcode = input_keymaps_translate_keysym_to_rk(keycode);
/* Set keyboard modifier based on shift,ctrl and alt state */
// Set keyboard modifier based on shift,ctrl and alt state uint16_t mod = 0;
uint16_t mod = 0; int meta = AKeyEvent_getMetaState(event);
int meta = AKeyEvent_getMetaState(event);
if(meta & AMETA_ALT_ON) mod |= RETROKMOD_ALT; if (meta & AMETA_ALT_ON)
if(meta & AMETA_CTRL_ON) mod |= RETROKMOD_CTRL; mod |= RETROKMOD_ALT;
if(meta & AMETA_SHIFT_ON) mod |= RETROKMOD_SHIFT; if (meta & AMETA_CTRL_ON)
mod |= RETROKMOD_CTRL;
if (meta & AMETA_SHIFT_ON)
mod |= RETROKMOD_SHIFT;
input_keyboard_event(keydown, keyboardcode, keyboardcode, mod, RETRO_DEVICE_KEYBOARD); input_keyboard_event(keydown, keyboardcode, keyboardcode, mod, RETRO_DEVICE_KEYBOARD);