erlang.spawn/fallout2-ce: Classic Fallout for modern operating systems

src/input.cc
1 137 строк27 KB
Mike Klaas
Use in-game gamma when generating screenshots (#469)
26 май 2026, 19:23
26 май 2026, 19:238afe4b3
#include "input.h"

#include <SDL.h>
#include <lodepng.h>

#include "audio_engine.h"
#include "color.h"
#include "delay.h"
#include "dinput.h"
#include "draw.h"
#include "game.h"
#include "kb.h"
#include "memory.h"
#include "mouse.h"
#include "sfall_kb_helpers.h"
#include "sfall_script_hooks.h"
#include "svga.h"
#include "text_font.h"
#include "touch.h"
#include "win32.h"

namespace fallout {

typedef struct InputEvent {
    // This is either logical key or input event id, which can be either
    // character code pressed or some other numbers used throughout the
    // game interface.
    int logicalKey;
    int mouseX;
    int mouseY;
} InputEvent;

typedef struct RepeatInfo {
    // Time when appropriate key was pressed down or -1 if it's up.
    int tick;
    int repeatCount;
} RepeatInfo;

typedef struct TickerListNode {
    int flags;
    TickerProc* proc;
    struct TickerListNode* next;
} TickerListNode;

static int dequeueInputEvent();
static void screenshotBlitter(unsigned char* src, int src_pitch, int a3, int x, int y, int width, int height, int dest_x, int dest_y);
static void buildNormalizedQwertyKeys();
static void _GNW95_process_key(KeyboardData* data);
static int inputGetHookMouseButton(int sdlButton);
static void inputHandleMouseClickHook(int sdlButton, bool pressed);

// 0x51E23C GNW95_repeat_rate
static int gKeyboardKeyRepeatRate = 80;

// 0x51E240 GNW95_repeat_delay
static int gKeyboardKeyRepeatDelay = 500;

// A map of SDL_SCANCODE_* constants normalized for QWERTY keyboard.
//
// 0x6ABC70 GNW95_key_map
static int gNormalizedQwertyKeys[SDL_NUM_SCANCODES];

// Ring buffer of input events.
//
// Looks like this buffer does not support overwriting of values. Once the
// buffer is full it will not overwrite values until they are dequeued.
//
// 0x6ABD70 input_buffer
static InputEvent gInputEventQueue[40];

// 0x6ABF50 GNW95_key_time_stamps
static RepeatInfo _GNW95_key_time_stamps[SDL_NUM_SCANCODES];

// 0x6AC750 input_mx
static int _input_mx;

// 0x6AC754 input_my
static int _input_my;

// 0x6AC760 screendump_key
static int gScreenshotKeyCode;

// 0x6AC76C screendump_func
static ScreenshotHandler* gScreenshotHandler;

// 0x6AC770 input_get
static int gInputEventQueueReadIndex;

// 0x6AC774 screendump_buf
static unsigned char* gScreenshotBuffer;

// 0x6AC77C input_put
static int gInputEventQueueWriteIndex;

// 0x6AC780 bk_disabled
static bool gRunLoopDisabled;

// 0x6AC784 bk_list
static TickerListNode* gTickerListHead;

// 0x6AC788 bk_process_time
static unsigned int gTickerLastTimestamp;

// global for inventoryOpenUseItemOn inventory to prevent click through bug
bool gBlockMouseUpEvent = false;

static int inputGetHookMouseButton(int sdlButton)
{
    switch (sdlButton) {
    case SDL_BUTTON_LEFT:
        return 0;
    case SDL_BUTTON_RIGHT:
        return 1;
    case SDL_BUTTON_MIDDLE:
        return 2;
    case SDL_BUTTON_X1:
        return 3;
    case SDL_BUTTON_X2:
        return 4;
    default:
        if (sdlButton >= 6 && sdlButton <= 8) {
            return sdlButton - 1;
        }
        return -1;
    }
}

static void inputHandleMouseClickHook(int sdlButton, bool pressed)
{
    if (!gGameLoaded) return;

    int hookButton = inputGetHookMouseButton(sdlButton);
    if (hookButton == -1) return;

    ScriptHookCall(HOOK_MOUSECLICK, 0, { pressed ? 1 : 0, hookButton }).call();
}

// 0x4C8A70
int inputInit()
{
    if (!directInputInit()) {
        return -1;
    }

    if (keyboardInit() == -1) {
        return -1;
    }

    if (mouseInit() == -1) {
        return -1;
    }

    if (_GNW95_input_init() == -1) {
        return -1;
    }

    buildNormalizedQwertyKeys();
    _GNW95_clear_time_stamps();

    gInputEventQueueWriteIndex = 0;
    gInputEventQueueReadIndex = -1;
    _input_mx = -1;
    _input_my = -1;
    gRunLoopDisabled = 0;
    gScreenshotHandler = screenshotHandlerDefaultImpl;
    gTickerListHead = nullptr;
    gScreenshotKeyCode = KEY_ALT_C;

    return 0;
}

// 0x4C8B40
void inputExit()
{
    _GNW95_input_init();
    mouseFree();
    keyboardFree();
    directInputFree();

    TickerListNode* curr = gTickerListHead;
    while (curr != nullptr) {
        TickerListNode* next = curr->next;
        internal_free(curr);
        curr = next;
    }
}

// 0x4C8B78
int inputGetInput()
{
    int v3;

    _GNW95_process_message();

    if (!gProgramIsActive) {
        _GNW95_lost_focus();
    }

    _process_bk();

    v3 = dequeueInputEvent();
    if (v3 == -1 && mouseGetEvent() & 0x33) {
        mouseGetPosition(&_input_mx, &_input_my);
        return -2;
    } else {
        return _GNW_check_menu_bars(v3);
    }

    return -1;
}

// 0x4C8BC8
void get_input_position(int* x, int* y)
{
    *x = _input_mx;
    *y = _input_my;
}

// 0x4C8BDC
void _process_bk()
{
    int v1;

    tickersExecute();

    _mouse_info();

    v1 = _win_check_all_buttons();
    if (v1 != -1) {
        enqueueInputEvent(v1);
        return;
    }

    v1 = _kb_getch();
    if (v1 != -1) {
        enqueueInputEvent(v1);
        return;
    }
}

// 0x4C8C04
void enqueueInputEvent(int logicalKey)
{
    if (logicalKey == -1) {
        return;
    }

    if (logicalKey == gScreenshotKeyCode) {
        takeScreenshot();
        return;
    }

    if (gInputEventQueueWriteIndex == gInputEventQueueReadIndex) {
        return;
    }

    InputEvent* inputEvent = &(gInputEventQueue[gInputEventQueueWriteIndex]);
    inputEvent->logicalKey = logicalKey;

    mouseGetPosition(&(inputEvent->mouseX), &(inputEvent->mouseY));

    gInputEventQueueWriteIndex++;

    if (gInputEventQueueWriteIndex == 40) {
        gInputEventQueueWriteIndex = 0;
        return;
    }

    if (gInputEventQueueReadIndex == -1) {
        gInputEventQueueReadIndex = 0;
    }
}

// 0x4C8C9C
static int dequeueInputEvent()
{
    if (gInputEventQueueReadIndex == -1) {
        return -1;
    }

    InputEvent* inputEvent = &(gInputEventQueue[gInputEventQueueReadIndex]);
    int eventCode = inputEvent->logicalKey;
    _input_mx = inputEvent->mouseX;
    _input_my = inputEvent->mouseY;

    gInputEventQueueReadIndex++;

    if (gInputEventQueueReadIndex == 40) {
        gInputEventQueueReadIndex = 0;
    }

    if (gInputEventQueueReadIndex == gInputEventQueueWriteIndex) {
        gInputEventQueueReadIndex = -1;
        gInputEventQueueWriteIndex = 0;
    }

    return eventCode;
}

// 0x4C8D04
void inputEventQueueReset()
{
    gInputEventQueueReadIndex = -1;
    gInputEventQueueWriteIndex = 0;
    SDL_Event e;
    while (SDL_PollEvent(&e)) { } // Clear all input events
    sfall_kb_clear_synthetic_key_events();
}

// 0x4C8D1C
void tickersExecute()
{
    if (gRunLoopDisabled) {
        return;
    }

    gTickerLastTimestamp = SDL_GetTicks();

    TickerListNode* curr = gTickerListHead;
    TickerListNode** currPtr = &(gTickerListHead);

    while (curr != nullptr) {
        TickerListNode* next = curr->next;
        if (curr->flags & 1) {
            *currPtr = next;

            internal_free(curr);
        } else {
            curr->proc();
            currPtr = &(curr->next);
        }
        curr = next;
    }
}

// 0x4C8D74
void tickersAdd(TickerProc* proc)
{
    TickerListNode* curr = gTickerListHead;
    while (curr != nullptr) {
        if (curr->proc == proc) {
            if ((curr->flags & 0x01) != 0) {
                curr->flags &= ~0x01;
                return;
            }
        }
        curr = curr->next;
    }

    curr = (TickerListNode*)internal_malloc(sizeof(*curr));
    curr->flags = 0;
    curr->proc = proc;
    curr->next = gTickerListHead;
    gTickerListHead = curr;
}

// 0x4C8DC4
void tickersRemove(TickerProc* proc)
{
    TickerListNode* curr = gTickerListHead;
    while (curr != nullptr) {
        if (curr->proc == proc) {
            curr->flags |= 0x01;
            return;
        }
        curr = curr->next;
    }
}

// 0x4C8DE4
void tickersEnable()
{
    gRunLoopDisabled = false;
}

// 0x4C8DF0
void tickersDisable()
{
    gRunLoopDisabled = true;
}

// 0x4C8F4C
void takeScreenshot()
{
    int width = _scr_size.right - _scr_size.left + 1;
    int height = _scr_size.bottom - _scr_size.top + 1;
    gScreenshotBuffer = (unsigned char*)internal_malloc(width * height);
    if (gScreenshotBuffer == nullptr) {
        return;
    }

    WINDOWDRAWINGPROC old_src = _scr_blit;
    _scr_blit = screenshotBlitter;

    WINDOWDRAWINGPROC old_mouse = _mouse_blit;
    _mouse_blit = screenshotBlitter;

    WindowDrawingProc2* old_mouse_trans = _mouse_blit_trans;
    _mouse_blit_trans = nullptr;

    windowRefreshAll(&_scr_size);

    _mouse_blit_trans = old_mouse_trans;
    _mouse_blit = old_mouse;
    _scr_blit = old_src;

    // Save screenshots with the palette currently presented on screen so the
    // exported colors match brightness-adjusted rendering.
    unsigned char* palette = gSdlSurface != nullptr ? directDrawGetPalette() : _getSystemPalette();
    gScreenshotHandler(width, height, gScreenshotBuffer, palette);
    internal_free(gScreenshotBuffer);
}

// 0x4C8FF0
static void screenshotBlitter(unsigned char* src, int srcPitch, int _, int srcX, int srcY, int width, int height, int destX, int destY)
{
    int destWidth = _scr_size.right - _scr_size.left + 1;
    blitBufferToBuffer(src + srcPitch * srcY + srcX, width, height, srcPitch, gScreenshotBuffer + destWidth * destY + destX, destWidth);
}

// 0x4C9048
int screenshotHandlerDefaultImpl(int width, int height, unsigned char* data, unsigned char* palette)
{
    char fileName[16];
    FILE* stream;
    int index;
    unsigned int intValue;
    unsigned short shortValue;

    for (index = 0; index < 100000; index++) {
        snprintf(fileName, sizeof(fileName), "scr%.5d.bmp", index);

        stream = compat_fopen(fileName, "rb");
        if (stream == nullptr) {
            break;
        }

        fclose(stream);
    }

    if (index == 100000) {
        return -1;
    }

    stream = compat_fopen(fileName, "wb");
    if (stream == nullptr) {
        return -1;
    }

    // bfType
    shortValue = 0x4D42;
    fwrite(&shortValue, sizeof(shortValue), 1, stream);

    // bfSize
    // 14 - sizeof(BITMAPFILEHEADER)
    // 40 - sizeof(BITMAPINFOHEADER)
    // 1024 - sizeof(RGBQUAD) * 256
    intValue = width * height + 14 + 40 + 1024;
    fwrite(&intValue, sizeof(intValue), 1, stream);

    // bfReserved1
    shortValue = 0;
    fwrite(&shortValue, sizeof(shortValue), 1, stream);

    // bfReserved2
    shortValue = 0;
    fwrite(&shortValue, sizeof(shortValue), 1, stream);

    // bfOffBits
    intValue = 14 + 40 + 1024;
    fwrite(&intValue, sizeof(intValue), 1, stream);

    // biSize
    intValue = 40;
    fwrite(&intValue, sizeof(intValue), 1, stream);

    // biWidth
    intValue = width;
    fwrite(&intValue, sizeof(intValue), 1, stream);

    // biHeight
    intValue = height;
    fwrite(&intValue, sizeof(intValue), 1, stream);

    // biPlanes
    shortValue = 1;
    fwrite(&shortValue, sizeof(shortValue), 1, stream);

    // biBitCount
    shortValue = 8;
    fwrite(&shortValue, sizeof(shortValue), 1, stream);

    // biCompression
    intValue = 0;
    fwrite(&intValue, sizeof(intValue), 1, stream);

    // biSizeImage
    intValue = 0;
    fwrite(&intValue, sizeof(intValue), 1, stream);

    // biXPelsPerMeter
    intValue = 0;
    fwrite(&intValue, sizeof(intValue), 1, stream);

    // biYPelsPerMeter
    intValue = 0;
    fwrite(&intValue, sizeof(intValue), 1, stream);

    // biClrUsed
    intValue = 0;
    fwrite(&intValue, sizeof(intValue), 1, stream);

    // biClrImportant
    intValue = 0;
    fwrite(&intValue, sizeof(intValue), 1, stream);

    for (int index = 0; index < 256; index++) {
        unsigned char rgbReserved = 0;
        unsigned char rgbRed = palette[index * 3] << 2;
        unsigned char rgbGreen = palette[index * 3 + 1] << 2;
        unsigned char rgbBlue = palette[index * 3 + 2] << 2;

        fwrite(&rgbBlue, sizeof(rgbBlue), 1, stream);
        fwrite(&rgbGreen, sizeof(rgbGreen), 1, stream);
        fwrite(&rgbRed, sizeof(rgbRed), 1, stream);
        fwrite(&rgbReserved, sizeof(rgbReserved), 1, stream);
    }

    for (int y = height - 1; y >= 0; y--) {
        unsigned char* dataPtr = data + y * width;
        fwrite(dataPtr, 1, width, stream);
    }

    fflush(stream);
    fclose(stream);

    return 0;
}

int screenshotHandlerPngImpl(int width, int height, unsigned char* data, unsigned char* palette)
{
    char fileName[16];
    FILE* stream;
    int fileIndex;

    for (fileIndex = 0; fileIndex < 100000; fileIndex++) {
        snprintf(fileName, sizeof(fileName), "scr%.5d.png", fileIndex);

        stream = compat_fopen(fileName, "rb");
        if (stream == nullptr) {
            break;
        }

        fclose(stream);
    }

    if (fileIndex == 100000) {
        return -1;
    }

    stream = compat_fopen(fileName, "wb");
    if (stream == nullptr) {
        return -1;
    }
    fclose(stream);

    int imgLen = width * height;
    std::vector<unsigned char> image(imgLen * 3);

    for (size_t i = 0; i < imgLen; i++) {
        image[i * 3] = palette[data[i] * 3] << 2;
        image[i * 3 + 1] = palette[data[i] * 3 + 1] << 2;
        image[i * 3 + 2] = palette[data[i] * 3 + 2] << 2;
    }

    unsigned error = lodepng::encode(fileName, image, width, height, LCT_RGB, 8);
    if (error) {
        return -1;
    }

    return 0;
}

// 0x4C9358
void screenshotHandlerConfigure(int keyCode, ScreenshotHandler* handler)
{
    gScreenshotKeyCode = keyCode;

    if (handler == nullptr) {
        handler = screenshotHandlerDefaultImpl;
    }

    gScreenshotHandler = handler;
}

// 0x4C9370
unsigned int getTicks()
{
    return SDL_GetTicks();
}

// 0x4C937C
void inputPauseForTocks(unsigned int delay)
{
    // NOTE: Uninline.
    unsigned int start = getTicks();
    unsigned int end = getTicks();

    // NOTE: Uninline.
    unsigned int diff = getTicksBetween(end, start);
    while (diff < delay) {
        _process_bk();

        end = getTicks();

        // NOTE: Uninline.
        diff = getTicksBetween(end, start);
    }
}

// 0x4C93B8
void inputBlockForTocks(unsigned int ms)
{
    delay_ms(ms);
}

// 0x4C93E0
unsigned int getTicksSince(unsigned int start)
{
    unsigned int end = SDL_GetTicks();

    // NOTE: Uninline.
    return getTicksBetween(end, start);
}

// 0x4C9400
unsigned int getTicksBetween(unsigned int end, unsigned int start)
{
    if (start > end) {
        return INT_MAX;
    } else {
        return end - start;
    }
}

// 0x4C9410
unsigned int _get_bk_time()
{
    return gTickerLastTimestamp;
}

// 0x4C9490
static void buildNormalizedQwertyKeys()
{
    int* keys = gNormalizedQwertyKeys;
    int k;

    keys[SDL_SCANCODE_ESCAPE] = SDL_SCANCODE_ESCAPE;
    keys[SDL_SCANCODE_1] = SDL_SCANCODE_1;
    keys[SDL_SCANCODE_2] = SDL_SCANCODE_2;
    keys[SDL_SCANCODE_3] = SDL_SCANCODE_3;
    keys[SDL_SCANCODE_4] = SDL_SCANCODE_4;
    keys[SDL_SCANCODE_5] = SDL_SCANCODE_5;
    keys[SDL_SCANCODE_6] = SDL_SCANCODE_6;
    keys[SDL_SCANCODE_7] = SDL_SCANCODE_7;
    keys[SDL_SCANCODE_8] = SDL_SCANCODE_8;
    keys[SDL_SCANCODE_9] = SDL_SCANCODE_9;
    keys[SDL_SCANCODE_0] = SDL_SCANCODE_0;

    switch (gKeyboardLayout) {
    case 0:
        k = SDL_SCANCODE_MINUS;
        break;
    case 1:
        k = SDL_SCANCODE_6;
        break;
    default:
        k = SDL_SCANCODE_SLASH;
        break;
    }
    keys[SDL_SCANCODE_MINUS] = k;

    switch (gKeyboardLayout) {
    case 1:
        k = SDL_SCANCODE_0;
        break;
    default:
        k = SDL_SCANCODE_EQUALS;
        break;
    }
    keys[SDL_SCANCODE_EQUALS] = k;

    keys[SDL_SCANCODE_BACKSPACE] = SDL_SCANCODE_BACKSPACE;
    keys[SDL_SCANCODE_TAB] = SDL_SCANCODE_TAB;

    switch (gKeyboardLayout) {
    case 1:
        k = SDL_SCANCODE_A;
        break;
    default:
        k = SDL_SCANCODE_Q;
        break;
    }
    keys[SDL_SCANCODE_Q] = k;

    switch (gKeyboardLayout) {
    case 1:
        k = SDL_SCANCODE_Z;
        break;
    default:
        k = SDL_SCANCODE_W;
        break;
    }
    keys[SDL_SCANCODE_W] = k;

    keys[SDL_SCANCODE_E] = SDL_SCANCODE_E;
    keys[SDL_SCANCODE_R] = SDL_SCANCODE_R;
    keys[SDL_SCANCODE_T] = SDL_SCANCODE_T;

    switch (gKeyboardLayout) {
    case 0:
    case 1:
    case 3:
    case 4:
        k = SDL_SCANCODE_Y;
        break;
    default:
        k = SDL_SCANCODE_Z;
        break;
    }
    keys[SDL_SCANCODE_Y] = k;

    keys[SDL_SCANCODE_U] = SDL_SCANCODE_U;
    keys[SDL_SCANCODE_I] = SDL_SCANCODE_I;
    keys[SDL_SCANCODE_O] = SDL_SCANCODE_O;
    keys[SDL_SCANCODE_P] = SDL_SCANCODE_P;

    switch (gKeyboardLayout) {
    case 0:
    case 3:
    case 4:
        k = SDL_SCANCODE_LEFTBRACKET;
        break;
    case 1:
        k = SDL_SCANCODE_5;
        break;
    default:
        k = SDL_SCANCODE_8;
        break;
    }
    keys[SDL_SCANCODE_LEFTBRACKET] = k;

    switch (gKeyboardLayout) {
    case 0:
    case 3:
    case 4:
        k = SDL_SCANCODE_RIGHTBRACKET;
        break;
    case 1:
        k = SDL_SCANCODE_MINUS;
        break;
    default:
        k = SDL_SCANCODE_9;
        break;
    }
    keys[SDL_SCANCODE_RIGHTBRACKET] = k;

    keys[SDL_SCANCODE_RETURN] = SDL_SCANCODE_RETURN;
    keys[SDL_SCANCODE_LCTRL] = SDL_SCANCODE_LCTRL;

    switch (gKeyboardLayout) {
    case 1:
        k = SDL_SCANCODE_Q;
        break;
    default:
        k = SDL_SCANCODE_A;
        break;
    }
    keys[SDL_SCANCODE_A] = k;

    keys[SDL_SCANCODE_S] = SDL_SCANCODE_S;
    keys[SDL_SCANCODE_D] = SDL_SCANCODE_D;
    keys[SDL_SCANCODE_F] = SDL_SCANCODE_F;
    keys[SDL_SCANCODE_G] = SDL_SCANCODE_G;
    keys[SDL_SCANCODE_H] = SDL_SCANCODE_H;
    keys[SDL_SCANCODE_J] = SDL_SCANCODE_J;
    keys[SDL_SCANCODE_K] = SDL_SCANCODE_K;
    keys[SDL_SCANCODE_L] = SDL_SCANCODE_L;

    switch (gKeyboardLayout) {
    case 0:
        k = SDL_SCANCODE_SEMICOLON;
        break;
    default:
        k = SDL_SCANCODE_COMMA;
        break;
    }
    keys[SDL_SCANCODE_SEMICOLON] = k;

    switch (gKeyboardLayout) {
    case 0:
        k = SDL_SCANCODE_APOSTROPHE;
        break;
    case 1:
        k = SDL_SCANCODE_4;
        break;
    default:
        k = SDL_SCANCODE_MINUS;
        break;
    }
    keys[SDL_SCANCODE_APOSTROPHE] = k;

    switch (gKeyboardLayout) {
    case 0:
        k = SDL_SCANCODE_GRAVE;
        break;
    case 1:
        k = SDL_SCANCODE_2;
        break;
    case 3:
    case 4:
        k = 0;
        break;
    default:
        k = SDL_SCANCODE_RIGHTBRACKET;
        break;
    }
    keys[SDL_SCANCODE_GRAVE] = k;

    keys[SDL_SCANCODE_LSHIFT] = SDL_SCANCODE_LSHIFT;

    switch (gKeyboardLayout) {
    case 0:
        k = SDL_SCANCODE_BACKSLASH;
        break;
    case 1:
        k = SDL_SCANCODE_8;
        break;
    case 3:
    case 4:
        k = SDL_SCANCODE_GRAVE;
        break;
    default:
        k = SDL_SCANCODE_Y;
        break;
    }
    keys[SDL_SCANCODE_BACKSLASH] = k;

    switch (gKeyboardLayout) {
    case 0:
    case 3:
    case 4:
        k = SDL_SCANCODE_Z;
        break;
    case 1:
        k = SDL_SCANCODE_W;
        break;
    default:
        k = SDL_SCANCODE_Y;
        break;
    }
    keys[SDL_SCANCODE_Z] = k;

    keys[SDL_SCANCODE_X] = SDL_SCANCODE_X;
    keys[SDL_SCANCODE_C] = SDL_SCANCODE_C;
    keys[SDL_SCANCODE_V] = SDL_SCANCODE_V;
    keys[SDL_SCANCODE_B] = SDL_SCANCODE_B;
    keys[SDL_SCANCODE_N] = SDL_SCANCODE_N;

    switch (gKeyboardLayout) {
    case 1:
        k = SDL_SCANCODE_SEMICOLON;
        break;
    default:
        k = SDL_SCANCODE_M;
        break;
    }
    keys[SDL_SCANCODE_M] = k;

    switch (gKeyboardLayout) {
    case 1:
        k = SDL_SCANCODE_M;
        break;
    default:
        k = SDL_SCANCODE_COMMA;
        break;
    }
    keys[SDL_SCANCODE_COMMA] = k;

    switch (gKeyboardLayout) {
    case 1:
        k = SDL_SCANCODE_COMMA;
        break;
    default:
        k = SDL_SCANCODE_PERIOD;
        break;
    }
    keys[SDL_SCANCODE_PERIOD] = k;

    switch (gKeyboardLayout) {
    case 0:
        k = SDL_SCANCODE_SLASH;
        break;
    case 1:
        k = SDL_SCANCODE_PERIOD;
        break;
    default:
        k = SDL_SCANCODE_7;
        break;
    }
    keys[SDL_SCANCODE_SLASH] = k;

    keys[SDL_SCANCODE_RSHIFT] = SDL_SCANCODE_RSHIFT;
    keys[SDL_SCANCODE_KP_MULTIPLY] = SDL_SCANCODE_KP_MULTIPLY;
    keys[SDL_SCANCODE_SPACE] = SDL_SCANCODE_SPACE;
    keys[SDL_SCANCODE_LALT] = SDL_SCANCODE_LALT;
    keys[SDL_SCANCODE_CAPSLOCK] = SDL_SCANCODE_CAPSLOCK;
    keys[SDL_SCANCODE_F1] = SDL_SCANCODE_F1;
    keys[SDL_SCANCODE_F2] = SDL_SCANCODE_F2;
    keys[SDL_SCANCODE_F3] = SDL_SCANCODE_F3;
    keys[SDL_SCANCODE_F4] = SDL_SCANCODE_F4;
    keys[SDL_SCANCODE_F5] = SDL_SCANCODE_F5;
    keys[SDL_SCANCODE_F6] = SDL_SCANCODE_F6;
    keys[SDL_SCANCODE_F7] = SDL_SCANCODE_F7;
    keys[SDL_SCANCODE_F8] = SDL_SCANCODE_F8;
    keys[SDL_SCANCODE_F9] = SDL_SCANCODE_F9;
    keys[SDL_SCANCODE_F10] = SDL_SCANCODE_F10;
    keys[SDL_SCANCODE_NUMLOCKCLEAR] = SDL_SCANCODE_NUMLOCKCLEAR;
    keys[SDL_SCANCODE_SCROLLLOCK] = SDL_SCANCODE_SCROLLLOCK;
    keys[SDL_SCANCODE_KP_7] = SDL_SCANCODE_KP_7;
    keys[SDL_SCANCODE_KP_9] = SDL_SCANCODE_KP_9;
    keys[SDL_SCANCODE_KP_8] = SDL_SCANCODE_KP_8;
    keys[SDL_SCANCODE_KP_MINUS] = SDL_SCANCODE_KP_MINUS;
    keys[SDL_SCANCODE_KP_4] = SDL_SCANCODE_KP_4;
    keys[SDL_SCANCODE_KP_5] = SDL_SCANCODE_KP_5;
    keys[SDL_SCANCODE_KP_6] = SDL_SCANCODE_KP_6;
    keys[SDL_SCANCODE_KP_PLUS] = SDL_SCANCODE_KP_PLUS;
    keys[SDL_SCANCODE_KP_1] = SDL_SCANCODE_KP_1;
    keys[SDL_SCANCODE_KP_2] = SDL_SCANCODE_KP_2;
    keys[SDL_SCANCODE_KP_3] = SDL_SCANCODE_KP_3;
    keys[SDL_SCANCODE_KP_0] = SDL_SCANCODE_KP_0;
    keys[SDL_SCANCODE_KP_DECIMAL] = SDL_SCANCODE_KP_DECIMAL;
    keys[SDL_SCANCODE_F11] = SDL_SCANCODE_F11;
    keys[SDL_SCANCODE_F12] = SDL_SCANCODE_F12;
    keys[SDL_SCANCODE_F13] = -1;
    keys[SDL_SCANCODE_F14] = -1;
    keys[SDL_SCANCODE_F15] = -1;
    // keys[DIK_KANA] = -1;
    // keys[DIK_CONVERT] = -1;
    // keys[DIK_NOCONVERT] = -1;
    // keys[DIK_YEN] = -1;
    keys[SDL_SCANCODE_KP_EQUALS] = -1;
    // keys[DIK_PREVTRACK] = -1;
    // keys[DIK_AT] = -1;
    // keys[DIK_COLON] = -1;
    // keys[DIK_UNDERLINE] = -1;
    // keys[DIK_KANJI] = -1;
    keys[SDL_SCANCODE_STOP] = -1;
    // keys[DIK_AX] = -1;
    // keys[DIK_UNLABELED] = -1;
    keys[SDL_SCANCODE_KP_ENTER] = SDL_SCANCODE_KP_ENTER;
    keys[SDL_SCANCODE_RCTRL] = SDL_SCANCODE_RCTRL;
    keys[SDL_SCANCODE_KP_COMMA] = -1;
    keys[SDL_SCANCODE_KP_DIVIDE] = SDL_SCANCODE_KP_DIVIDE;
    // keys[DIK_SYSRQ] = 84;
    keys[SDL_SCANCODE_RALT] = SDL_SCANCODE_RALT;
    keys[SDL_SCANCODE_HOME] = SDL_SCANCODE_HOME;
    keys[SDL_SCANCODE_UP] = SDL_SCANCODE_UP;
    keys[SDL_SCANCODE_PRIOR] = SDL_SCANCODE_PRIOR;
    keys[SDL_SCANCODE_LEFT] = SDL_SCANCODE_LEFT;
    keys[SDL_SCANCODE_RIGHT] = SDL_SCANCODE_RIGHT;
    keys[SDL_SCANCODE_END] = SDL_SCANCODE_END;
    keys[SDL_SCANCODE_DOWN] = SDL_SCANCODE_DOWN;
    keys[SDL_SCANCODE_PAGEUP] = SDL_SCANCODE_PAGEUP;
    keys[SDL_SCANCODE_PAGEDOWN] = SDL_SCANCODE_PAGEDOWN;
    keys[SDL_SCANCODE_INSERT] = SDL_SCANCODE_INSERT;
    keys[SDL_SCANCODE_DELETE] = SDL_SCANCODE_DELETE;
    keys[SDL_SCANCODE_LGUI] = -1;
    keys[SDL_SCANCODE_RGUI] = -1;
    keys[SDL_SCANCODE_APPLICATION] = -1;
}

// 0x4C9C20
int _GNW95_input_init()
{
    return 0;
}

// 0x4C9CF0
void _GNW95_process_message()
{
    // We need to process event loop even if program is not active or keyboard
    // is disabled, because if we ignore it, we'll never be able to reactivate
    // it again.

    KeyboardData keyboardData;
    SDL_Event e;
    while (SDL_PollEvent(&e)) {
        switch (e.type) {
        case SDL_MOUSEMOTION:
        case SDL_MOUSEBUTTONDOWN:
        case SDL_MOUSEBUTTONUP:
        case SDL_MOUSEWHEEL:
            if (e.type == SDL_MOUSEBUTTONDOWN || e.type == SDL_MOUSEBUTTONUP) {
                inputHandleMouseClickHook(e.button.button, e.type == SDL_MOUSEBUTTONDOWN);
            }
            handleMouseEvent(&e);
            break;
        case SDL_FINGERDOWN:
            touch_handle_start(&(e.tfinger));
            break;
        case SDL_FINGERMOTION:
            touch_handle_move(&(e.tfinger));
            break;
        case SDL_FINGERUP:
            touch_handle_end(&(e.tfinger));
            break;
        case SDL_KEYDOWN:
        case SDL_KEYUP: {
            keyboardData.key = e.key.keysym.scancode;
            keyboardData.down = (e.key.state & SDL_PRESSED) != 0;
            bool syntheticSfallKey = sfall_kb_consume_synthetic_key_event(keyboardData.key, keyboardData.down);
            if (!keyboardIsDisabled()) {
                if (!e.key.repeat && !syntheticSfallKey) {
                    int keyOverride = sfall_kb_handle_key_pressed(keyboardData.key, keyboardData.down);
                    if (keyOverride != SDL_SCANCODE_UNKNOWN) {
                        keyboardData.key = keyOverride;
                    }
                }
                _GNW95_process_key(&keyboardData);
            }
            break;
        }
        case SDL_WINDOWEVENT:
            switch (e.window.event) {
            case SDL_WINDOWEVENT_EXPOSED:
                windowRefreshAll(&_scr_size);
                break;
            case SDL_WINDOWEVENT_SIZE_CHANGED:
                handleWindowSizeChanged();
                break;
            case SDL_WINDOWEVENT_FOCUS_GAINED:
                gProgramIsActive = true;
                windowRefreshAll(&_scr_size);
                audioEngineResume();
                break;
            case SDL_WINDOWEVENT_FOCUS_LOST:
                gProgramIsActive = false;
                audioEnginePause();
                break;
            }
            break;
        case SDL_QUIT:
            exit(EXIT_SUCCESS);
            break;
        }
    }

    touch_process_gesture();

    if (gProgramIsActive && !keyboardIsDisabled()) {
        // NOTE: Uninline
        int tick = getTicks();

        for (int key = 0; key < SDL_NUM_SCANCODES; key++) {
            RepeatInfo* ptr = &(_GNW95_key_time_stamps[key]);
            if (ptr->tick != -1) {
                int elapsedTime = ptr->tick > tick ? INT_MAX : tick - ptr->tick;
                int delay = ptr->repeatCount == 0 ? gKeyboardKeyRepeatDelay : gKeyboardKeyRepeatRate;
                if (elapsedTime > delay) {
                    keyboardData.key = key;
                    keyboardData.down = 1;
                    _GNW95_process_key(&keyboardData);

                    ptr->tick = tick;
                    ptr->repeatCount++;
                }
            }
        }
    }
}

// 0x4C9DF0
void _GNW95_clear_time_stamps()
{
    for (int index = 0; index < SDL_NUM_SCANCODES; index++) {
        _GNW95_key_time_stamps[index].tick = -1;
        _GNW95_key_time_stamps[index].repeatCount = 0;
    }
}

// 0x4C9E14
static void _GNW95_process_key(KeyboardData* data)
{
    // Use originally pressed scancode, not qwerty-remapped one, for tracking
    // timestamps, see usage from |_GNW95_process_message|.
    int scanCode = data->key;

    data->key = gNormalizedQwertyKeys[data->key];

    RepeatInfo* ptr = &(_GNW95_key_time_stamps[scanCode]);
    if (data->down == 1) {
        ptr->tick = getTicks();
        ptr->repeatCount = 0;
    } else {
        ptr->tick = -1;
    }

    // Ignore keys which were remapped to -1.
    if (data->key == -1) {
        return;
    }

    _kb_simulate_key(data);
}

// 0x4C9EEC
void _GNW95_lost_focus()
{
    while (!gProgramIsActive) {
        _GNW95_process_message();

        SDL_Delay(125);
    }
}

void beginTextInput()
{
    SDL_StartTextInput();
}

void endTextInput()
{
    SDL_StopTextInput();
}

} // namespace fallout