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HID: Added functions to emulate the touchpad.

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This commit is contained in:
bunnei 2015-03-08 03:05:56 -04:00
parent 3229b048d9
commit 1a904ded40
2 changed files with 61 additions and 0 deletions
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48
src/core/hle/service/hid/hid.cpp
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@ -29,6 +29,10 @@ static u32 next_pad_index = 0;
static s16 next_pad_circle_x = 0;
static s16 next_pad_circle_y = 0;
static u32 next_touch_index = 0;
static u16 next_touch_x = 0;
static u16 next_touch_y = 0;
/**
* Gets a pointer to the PadData structure inside HID shared memory
*/
@ -125,6 +129,50 @@ void PadUpdateComplete() {
g_event_pad_or_touch_2->Signal();
}
void TouchPress(u16 x, u16 y) {
next_touch_x = x;
next_touch_y = y;
}
void TouchRelease() {
next_touch_x = 0;
next_touch_y = 0;
}
void TouchUpdateComplete() {
SharedMem* shared_mem = GetSharedMem();
if (shared_mem == nullptr)
return;
shared_mem->touch.index = next_touch_index;
next_touch_index = (next_touch_index + 1) % shared_mem->touch.entries.size();
// Get the current touch entry
TouchDataEntry* current_touch_entry = &shared_mem->touch.entries[shared_mem->touch.index];
// Set touchpad position
current_touch_entry->x = next_touch_x;
current_touch_entry->y = next_touch_y;
// TODO(bunnei): Verify this behavior on real hardware
current_touch_entry->data_valid = (next_touch_x || next_touch_y) ? 1 : 0;
// TODO(bunnei): We're not doing anything with offset 0xA8 + 0x18 of HID SharedMemory, which
// supposedly is "Touch-screen entry, which contains the raw coordinate data prior to being
// converted to pixel coordinates." (http://3dbrew.org/wiki/HID_Shared_Memory#Offset_0xA8).
// If we just updated index 0, provide a new timestamp
if (shared_mem->touch.index == 0) {
shared_mem->touch.index_reset_ticks_previous = shared_mem->touch.index_reset_ticks;
shared_mem->touch.index_reset_ticks = (s64)Core::g_app_core->GetTicks();
}
// Signal both handles when there's an update to Pad or touch
g_event_pad_or_touch_1->Signal();
g_event_pad_or_touch_2->Signal();
}
void GetIPCHandles(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();

13
src/core/hle/service/hid/hid.h
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@ -180,6 +180,19 @@ void PadButtonRelease(const PadState& pad_state);
*/
void PadUpdateComplete();
/**
* Signal that the touchpad has been pressed
* @param x Touchpad x-coordinate in bottom screen pixels (between 0 and 320)
* @param y Touchpad y-coordinate in bottom screen pixels (between 0 and 240)
*/
void TouchPress(u16 x, u16 y);
/// Signal that touchpad has been released
void TouchRelease();
/// Signal that touchpad updates have been completed
void TouchUpdateComplete();
void HIDInit();
void HIDShutdown();