165 lines
3.5 KiB
C
165 lines
3.5 KiB
C
#include "win.h"
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#include <windows.h>
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#include "gametime.h"
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#include "input.h"
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struct windows {
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union {
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HANDLE input_hands[2];
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struct {
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HANDLE input_hand;
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HANDLE early_exit_hand;
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};
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};
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HANDLE timer;
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} win;
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bool init_handles()
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{
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win.input_hand = GetStdHandle(STD_INPUT_HANDLE);
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if (win.input_hand == INVALID_HANDLE_VALUE)
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return false;
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win.timer = CreateWaitableTimerW(NULL, TRUE, NULL);
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if (win.timer == NULL)
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return false;
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win.early_exit_hand = CreateEventW(NULL, FALSE, FALSE, NULL);
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if (win.early_exit_hand == NULL)
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return false;
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return true;
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}
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bool init_console()
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{
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DWORD mode = ENABLE_EXTENDED_FLAGS
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| ENABLE_PROCESSED_INPUT
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| ENABLE_PROCESSED_OUTPUT
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| ENABLE_MOUSE_INPUT
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| ENABLE_WINDOW_INPUT;
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return SetConsoleMode(win.input_hand, mode) != 0;
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}
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bool PlatformInit()
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{
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if (!init_handles())
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return false;
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if (!init_console())
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return false;
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return true;
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}
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bool PlatformGetRefreshRate(u16f *out)
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{
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DEVMODEW mode;
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mode.dmSize = sizeof(DEVMODEW);
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mode.dmDriverExtra = 0;
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if(!EnumDisplaySettingsW(NULL, ENUM_CURRENT_SETTINGS, &mode))
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return false;
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*out = mode.dmDisplayFrequency;
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return true;
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}
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void copy_key_event(struct InputRecord *rec, KEY_EVENT_RECORD *win_key)
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{
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rec->type = BUTTON;
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rec->bind = win_key->wVirtualKeyCode;
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rec->is_down = win_key->bKeyDown;
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rec->is_up = !win_key->bKeyDown;
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}
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bool copy_mouse_event(struct InputRecord *rec, MOUSE_EVENT_RECORD *win_mouse)
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{
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if (win_mouse->dwEventFlags == MOUSE_MOVED) {
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rec->type = JOYSTICK;
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rec->bind = 0;
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rec->js.x = win_mouse->dwMousePosition.X;
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rec->js.y = win_mouse->dwMousePosition.Y;
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return true;
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}
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if (win_mouse->dwEventFlags & (MOUSE_WHEELED | MOUSE_HWHEELED) != 0) {
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rec->type = AXIS;
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rec->bind = win_mouse->dwEventFlags == MOUSE_WHEELED;
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rec->axis.value = win_mouse->dwButtonState;
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return true;
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}
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return false;
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}
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bool copy_rec(struct InputRecord *rec, INPUT_RECORD *win_rec)
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{
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switch (win_rec->EventType) {
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case KEY_EVENT:
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copy_key_event(rec, &win_rec->Event.KeyEvent);
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return true;
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case MOUSE_EVENT:
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return copy_mouse_event(rec, &win_rec->Event.MouseEvent);
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case WINDOW_BUFFER_SIZE_EVENT:
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return false;
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// TODO: Handle window resizing
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}
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rec->type = ESCAPE;
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return false;
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}
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bool PlatformReadInput(struct InputBuffer *buf)
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{
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DWORD wait_status = WaitForMultipleObjects(2, win.input_hands, FALSE, 0);
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if (wait_status != 0)
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return wait_status == 1;
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DWORD max_records = IO_BUF_SIZE - buf->len;
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INPUT_RECORD win_buf[max_records];
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DWORD filled;
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if (!ReadConsoleInputW(win.input_hand, win_buf, max_records, &filled))
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return false;
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struct InputRecord rec = { .time = TimeNow() };
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for (size_t i = 0; i < filled; i++) {
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if (!copy_rec(&rec, win_buf + i))
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continue;
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InputBufferAdd(buf, &rec);
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}
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return true;
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}
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bool PlatformStopInput()
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{
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return SetEvent(win.early_exit_hand) == 0;
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}
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bool PlatformWait(struct Time relative)
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{
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LARGE_INTEGER duration;
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duration.QuadPart = -10000000 * relative.sec - relative.nsec / 100;
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if (!SetWaitableTimer(win.timer, &duration, 0, NULL, NULL, FALSE))
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return false;
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DWORD result = WaitForSingleObject(win.timer, INFINITE);
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if (result != WAIT_OBJECT_0)
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return false;
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return true;
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} |