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bgfx/examples/common/entry/entry_windows.cpp
Branimir Karadžić 8bdc60cfda Added xinput throttling. Issue #503.
2015-09-27 21:07:08 -07:00

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/*
* Copyright 2011-2015 Branimir Karadzic. All rights reserved.
* License: http://www.opensource.org/licenses/BSD-2-Clause
*/
#include "entry_p.h"
#if ENTRY_CONFIG_USE_NATIVE && BX_PLATFORM_WINDOWS
#include <bgfx/bgfxplatform.h>
#include <bx/uint32_t.h>
#include <bx/thread.h>
#include <bx/mutex.h>
#include <bx/handlealloc.h>
#include <bx/timer.h>
#include <tinystl/allocator.h>
#include <tinystl/string.h>
#include <windowsx.h>
#include <xinput.h>
#ifndef XINPUT_GAMEPAD_GUIDE
# define XINPUT_GAMEPAD_GUIDE 0x400
#endif // XINPUT_GAMEPAD_GUIDE
#ifndef XINPUT_DLL_A
# define XINPUT_DLL_A "xinput.dll"
#endif // XINPUT_DLL_A
namespace entry
{
typedef DWORD (WINAPI* PFN_XINPUT_GET_STATE)(DWORD dwUserIndex, XINPUT_STATE* pState);
typedef void (WINAPI* PFN_XINPUT_ENABLE)(BOOL enable); // 1.4+
PFN_XINPUT_GET_STATE XInputGetState;
PFN_XINPUT_ENABLE XInputEnable;
struct XInputRemap
{
uint16_t m_bit;
Key::Enum m_key;
};
static XInputRemap s_xinputRemap[] =
{
{ XINPUT_GAMEPAD_DPAD_UP, Key::GamepadUp },
{ XINPUT_GAMEPAD_DPAD_DOWN, Key::GamepadDown },
{ XINPUT_GAMEPAD_DPAD_LEFT, Key::GamepadLeft },
{ XINPUT_GAMEPAD_DPAD_RIGHT, Key::GamepadRight },
{ XINPUT_GAMEPAD_START, Key::GamepadStart },
{ XINPUT_GAMEPAD_BACK, Key::GamepadBack },
{ XINPUT_GAMEPAD_LEFT_THUMB, Key::GamepadThumbL },
{ XINPUT_GAMEPAD_RIGHT_THUMB, Key::GamepadThumbR },
{ XINPUT_GAMEPAD_LEFT_SHOULDER, Key::GamepadShoulderL },
{ XINPUT_GAMEPAD_RIGHT_SHOULDER, Key::GamepadShoulderR },
{ XINPUT_GAMEPAD_GUIDE, Key::GamepadGuide },
{ XINPUT_GAMEPAD_A, Key::GamepadA },
{ XINPUT_GAMEPAD_B, Key::GamepadB },
{ XINPUT_GAMEPAD_X, Key::GamepadX },
{ XINPUT_GAMEPAD_Y, Key::GamepadY },
};
struct XInput
{
XInput()
: m_xinputdll(NULL)
{
memset(m_connected, 0, sizeof(m_connected) );
memset(m_state, 0, sizeof(m_state) );
m_deadzone[GamepadAxis::LeftX ] =
m_deadzone[GamepadAxis::LeftY ] = XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE;
m_deadzone[GamepadAxis::RightX] =
m_deadzone[GamepadAxis::RightY] = XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE;
m_deadzone[GamepadAxis::LeftZ ] =
m_deadzone[GamepadAxis::RightZ] = XINPUT_GAMEPAD_TRIGGER_THRESHOLD;
memset(m_flip, 1, sizeof(m_flip) );
m_flip[GamepadAxis::LeftY ] =
m_flip[GamepadAxis::RightY] = -1;
}
void init()
{
m_xinputdll = bx::dlopen(XINPUT_DLL_A);
if (NULL != m_xinputdll)
{
XInputGetState = (PFN_XINPUT_GET_STATE)bx::dlsym(m_xinputdll, "XInputGetState");
// XInputEnable = (PFN_XINPUT_ENABLE )bx::dlsym(m_xinputdll, "XInputEnable" );
if (NULL == XInputGetState)
{
shutdown();
}
}
}
void shutdown()
{
if (NULL != m_xinputdll)
{
bx::dlclose(m_xinputdll);
m_xinputdll = NULL;
}
}
bool filter(GamepadAxis::Enum _axis, int32_t _old, int32_t* _value)
{
const int32_t deadzone = m_deadzone[_axis];
int32_t value = *_value;
value = value > deadzone || value < -deadzone ? value : 0;
*_value = value * m_flip[_axis];
return _old != value;
}
void update(EventQueue& _eventQueue)
{
int64_t now = bx::getHPCounter();
static int64_t next = now;
if (now < next)
{
return;
}
const int64_t timerFreq = bx::getHPFrequency();
next = now + timerFreq/60;
if (NULL == m_xinputdll)
{
return;
}
WindowHandle defaultWindow = { 0 };
GamepadHandle handle = { 0 };
for (uint32_t ii = 0; ii < BX_COUNTOF(m_state); ++ii)
{
XINPUT_STATE state;
DWORD result = XInputGetState(ii, &state);
bool connected = ERROR_SUCCESS == result;
if (connected != m_connected[ii])
{
_eventQueue.postGamepadEvent(defaultWindow, handle, connected);
}
m_connected[ii] = connected;
if (connected
&& m_state[ii].dwPacketNumber != state.dwPacketNumber)
{
XINPUT_GAMEPAD& gamepad = m_state[ii].Gamepad;
const uint16_t changed = gamepad.wButtons ^ state.Gamepad.wButtons;
const uint16_t current = gamepad.wButtons;
if (0 != changed)
{
for (uint32_t jj = 0; jj < BX_COUNTOF(s_xinputRemap); ++jj)
{
uint16_t bit = s_xinputRemap[jj].m_bit;
if (bit & changed)
{
_eventQueue.postKeyEvent(defaultWindow, s_xinputRemap[jj].m_key, 0, 0 == (current & bit) );
}
}
gamepad.wButtons = state.Gamepad.wButtons;
}
if (gamepad.bLeftTrigger != state.Gamepad.bLeftTrigger)
{
int32_t value = state.Gamepad.bLeftTrigger;
if (filter(GamepadAxis::LeftZ, gamepad.bLeftTrigger, &value) )
{
_eventQueue.postAxisEvent(defaultWindow, handle, GamepadAxis::LeftZ, value);
}
gamepad.bLeftTrigger = state.Gamepad.bLeftTrigger;
}
if (gamepad.bRightTrigger != state.Gamepad.bRightTrigger)
{
int32_t value = state.Gamepad.bRightTrigger;
if (filter(GamepadAxis::RightZ, gamepad.bRightTrigger, &value) )
{
_eventQueue.postAxisEvent(defaultWindow, handle, GamepadAxis::RightZ, value);
}
gamepad.bRightTrigger = state.Gamepad.bRightTrigger;
}
if (gamepad.sThumbLX != state.Gamepad.sThumbLX)
{
int32_t value = state.Gamepad.sThumbLX;
if (filter(GamepadAxis::LeftX, gamepad.sThumbLX, &value) )
{
_eventQueue.postAxisEvent(defaultWindow, handle, GamepadAxis::LeftX, value);
}
gamepad.sThumbLX = state.Gamepad.sThumbLX;
}
if (gamepad.sThumbLY != state.Gamepad.sThumbLY)
{
int32_t value = state.Gamepad.sThumbLY;
if (filter(GamepadAxis::LeftY, gamepad.sThumbLY, &value) )
{
_eventQueue.postAxisEvent(defaultWindow, handle, GamepadAxis::LeftY, value);
}
gamepad.sThumbLY = state.Gamepad.sThumbLY;
}
if (gamepad.sThumbRX != state.Gamepad.sThumbRX)
{
int32_t value = state.Gamepad.sThumbRX;
if (filter(GamepadAxis::RightX, gamepad.sThumbRX, &value) )
{
_eventQueue.postAxisEvent(defaultWindow, handle, GamepadAxis::RightX, value);
}
gamepad.sThumbRX = state.Gamepad.sThumbRX;
}
if (gamepad.sThumbRY != state.Gamepad.sThumbRY)
{
int32_t value = state.Gamepad.sThumbRY;
if (filter(GamepadAxis::RightY, gamepad.sThumbRY, &value) )
{
_eventQueue.postAxisEvent(defaultWindow, handle, GamepadAxis::RightY, value);
}
gamepad.sThumbRY = state.Gamepad.sThumbRY;
}
}
}
}
void* m_xinputdll;
int32_t m_deadzone[GamepadAxis::Count];
int8_t m_flip[GamepadAxis::Count];
XINPUT_STATE m_state[ENTRY_CONFIG_MAX_GAMEPADS];
bool m_connected[ENTRY_CONFIG_MAX_GAMEPADS];
};
XInput s_xinput;
enum
{
WM_USER_WINDOW_CREATE = WM_USER,
WM_USER_WINDOW_DESTROY,
WM_USER_WINDOW_SET_TITLE,
WM_USER_WINDOW_SET_POS,
WM_USER_WINDOW_SET_SIZE,
WM_USER_WINDOW_TOGGLE_FRAME,
WM_USER_WINDOW_MOUSE_LOCK,
};
struct TranslateKeyModifiers
{
int m_vk;
Modifier::Enum m_modifier;
};
static const TranslateKeyModifiers s_translateKeyModifiers[8] =
{
{ VK_LMENU, Modifier::LeftAlt },
{ VK_RMENU, Modifier::RightAlt },
{ VK_LCONTROL, Modifier::LeftCtrl },
{ VK_RCONTROL, Modifier::RightCtrl },
{ VK_LSHIFT, Modifier::LeftShift },
{ VK_RSHIFT, Modifier::RightShift },
{ VK_LWIN, Modifier::LeftMeta },
{ VK_RWIN, Modifier::RightMeta },
};
static uint8_t translateKeyModifiers()
{
uint8_t modifiers = 0;
for (uint32_t ii = 0; ii < BX_COUNTOF(s_translateKeyModifiers); ++ii)
{
const TranslateKeyModifiers& tkm = s_translateKeyModifiers[ii];
modifiers |= 0 > GetKeyState(tkm.m_vk) ? tkm.m_modifier : Modifier::None;
}
return modifiers;
}
static uint8_t s_translateKey[256];
static Key::Enum translateKey(WPARAM _wparam)
{
return (Key::Enum)s_translateKey[_wparam&0xff];
}
struct MainThreadEntry
{
int m_argc;
char** m_argv;
static int32_t threadFunc(void* _userData);
};
struct Msg
{
Msg()
: m_x(0)
, m_y(0)
, m_width(0)
, m_height(0)
, m_flags(0)
{
}
int32_t m_x;
int32_t m_y;
uint32_t m_width;
uint32_t m_height;
uint32_t m_flags;
tinystl::string m_title;
};
static void mouseCapture(HWND _hwnd, bool _capture)
{
if (_capture)
{
SetCapture(_hwnd);
}
else
{
ReleaseCapture();
}
}
struct Context
{
Context()
: m_mz(0)
, m_frame(true)
, m_mouseLock(NULL)
, m_init(false)
, m_exit(false)
{
memset(s_translateKey, 0, sizeof(s_translateKey) );
s_translateKey[VK_ESCAPE] = Key::Esc;
s_translateKey[VK_RETURN] = Key::Return;
s_translateKey[VK_TAB] = Key::Tab;
s_translateKey[VK_BACK] = Key::Backspace;
s_translateKey[VK_SPACE] = Key::Space;
s_translateKey[VK_UP] = Key::Up;
s_translateKey[VK_DOWN] = Key::Down;
s_translateKey[VK_LEFT] = Key::Left;
s_translateKey[VK_RIGHT] = Key::Right;
s_translateKey[VK_INSERT] = Key::Insert;
s_translateKey[VK_DELETE] = Key::Delete;
s_translateKey[VK_HOME] = Key::Home;
s_translateKey[VK_END] = Key::End;
s_translateKey[VK_PRIOR] = Key::PageUp;
s_translateKey[VK_NEXT] = Key::PageUp;
s_translateKey[VK_SNAPSHOT] = Key::Print;
s_translateKey[VK_OEM_PLUS] = Key::Plus;
s_translateKey[VK_OEM_MINUS] = Key::Minus;
s_translateKey[VK_OEM_4] = Key::LeftBracket;
s_translateKey[VK_OEM_6] = Key::RightBracket;
s_translateKey[VK_OEM_1] = Key::Semicolon;
s_translateKey[VK_OEM_7] = Key::Quote;
s_translateKey[VK_OEM_COMMA] = Key::Comma;
s_translateKey[VK_OEM_PERIOD] = Key::Period;
s_translateKey[VK_OEM_2] = Key::Slash;
s_translateKey[VK_OEM_5] = Key::Backslash;
s_translateKey[VK_OEM_3] = Key::Tilde;
s_translateKey[VK_F1] = Key::F1;
s_translateKey[VK_F2] = Key::F2;
s_translateKey[VK_F3] = Key::F3;
s_translateKey[VK_F4] = Key::F4;
s_translateKey[VK_F5] = Key::F5;
s_translateKey[VK_F6] = Key::F6;
s_translateKey[VK_F7] = Key::F7;
s_translateKey[VK_F8] = Key::F8;
s_translateKey[VK_F9] = Key::F9;
s_translateKey[VK_F10] = Key::F10;
s_translateKey[VK_F11] = Key::F11;
s_translateKey[VK_F12] = Key::F12;
s_translateKey[VK_NUMPAD0] = Key::NumPad0;
s_translateKey[VK_NUMPAD1] = Key::NumPad1;
s_translateKey[VK_NUMPAD2] = Key::NumPad2;
s_translateKey[VK_NUMPAD3] = Key::NumPad3;
s_translateKey[VK_NUMPAD4] = Key::NumPad4;
s_translateKey[VK_NUMPAD5] = Key::NumPad5;
s_translateKey[VK_NUMPAD6] = Key::NumPad6;
s_translateKey[VK_NUMPAD7] = Key::NumPad7;
s_translateKey[VK_NUMPAD8] = Key::NumPad8;
s_translateKey[VK_NUMPAD9] = Key::NumPad9;
s_translateKey[uint8_t('0')] = Key::Key0;
s_translateKey[uint8_t('1')] = Key::Key1;
s_translateKey[uint8_t('2')] = Key::Key2;
s_translateKey[uint8_t('3')] = Key::Key3;
s_translateKey[uint8_t('4')] = Key::Key4;
s_translateKey[uint8_t('5')] = Key::Key5;
s_translateKey[uint8_t('6')] = Key::Key6;
s_translateKey[uint8_t('7')] = Key::Key7;
s_translateKey[uint8_t('8')] = Key::Key8;
s_translateKey[uint8_t('9')] = Key::Key9;
s_translateKey[uint8_t('A')] = Key::KeyA;
s_translateKey[uint8_t('B')] = Key::KeyB;
s_translateKey[uint8_t('C')] = Key::KeyC;
s_translateKey[uint8_t('D')] = Key::KeyD;
s_translateKey[uint8_t('E')] = Key::KeyE;
s_translateKey[uint8_t('F')] = Key::KeyF;
s_translateKey[uint8_t('G')] = Key::KeyG;
s_translateKey[uint8_t('H')] = Key::KeyH;
s_translateKey[uint8_t('I')] = Key::KeyI;
s_translateKey[uint8_t('J')] = Key::KeyJ;
s_translateKey[uint8_t('K')] = Key::KeyK;
s_translateKey[uint8_t('L')] = Key::KeyL;
s_translateKey[uint8_t('M')] = Key::KeyM;
s_translateKey[uint8_t('N')] = Key::KeyN;
s_translateKey[uint8_t('O')] = Key::KeyO;
s_translateKey[uint8_t('P')] = Key::KeyP;
s_translateKey[uint8_t('Q')] = Key::KeyQ;
s_translateKey[uint8_t('R')] = Key::KeyR;
s_translateKey[uint8_t('S')] = Key::KeyS;
s_translateKey[uint8_t('T')] = Key::KeyT;
s_translateKey[uint8_t('U')] = Key::KeyU;
s_translateKey[uint8_t('V')] = Key::KeyV;
s_translateKey[uint8_t('W')] = Key::KeyW;
s_translateKey[uint8_t('X')] = Key::KeyX;
s_translateKey[uint8_t('Y')] = Key::KeyY;
s_translateKey[uint8_t('Z')] = Key::KeyZ;
}
int32_t run(int _argc, char** _argv)
{
SetDllDirectory(".");
s_xinput.init();
HINSTANCE instance = (HINSTANCE)GetModuleHandle(NULL);
WNDCLASSEX wnd;
memset(&wnd, 0, sizeof(wnd) );
wnd.cbSize = sizeof(wnd);
wnd.style = CS_HREDRAW | CS_VREDRAW;
wnd.lpfnWndProc = wndProc;
wnd.hInstance = instance;
wnd.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wnd.hCursor = LoadCursor(NULL, IDC_ARROW);
wnd.lpszClassName = "bgfx";
wnd.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
RegisterClassExA(&wnd);
m_windowAlloc.alloc();
m_hwnd[0] = CreateWindowA("bgfx"
, "BGFX"
, WS_OVERLAPPEDWINDOW|WS_VISIBLE
, 0
, 0
, ENTRY_DEFAULT_WIDTH
, ENTRY_DEFAULT_HEIGHT
, NULL
, NULL
, instance
, 0
);
m_flags[0] = 0
| ENTRY_WINDOW_FLAG_ASPECT_RATIO
| ENTRY_WINDOW_FLAG_FRAME
;
bgfx::winSetHwnd(m_hwnd[0]);
adjust(m_hwnd[0], ENTRY_DEFAULT_WIDTH, ENTRY_DEFAULT_HEIGHT, true);
clear(m_hwnd[0]);
m_width = ENTRY_DEFAULT_WIDTH;
m_height = ENTRY_DEFAULT_HEIGHT;
m_oldWidth = ENTRY_DEFAULT_WIDTH;
m_oldHeight = ENTRY_DEFAULT_HEIGHT;
MainThreadEntry mte;
mte.m_argc = _argc;
mte.m_argv = _argv;
bx::Thread thread;
thread.init(mte.threadFunc, &mte);
m_init = true;
m_eventQueue.postSizeEvent(findHandle(m_hwnd[0]), m_width, m_height);
MSG msg;
msg.message = WM_NULL;
while (!m_exit)
{
s_xinput.update(m_eventQueue);
WaitForInputIdle(GetCurrentProcess(), 16);
while (0 != PeekMessage(&msg, NULL, 0U, 0U, PM_REMOVE) )
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
thread.shutdown();
DestroyWindow(m_hwnd[0]);
s_xinput.shutdown();
return thread.getExitCode();
}
LRESULT process(HWND _hwnd, UINT _id, WPARAM _wparam, LPARAM _lparam)
{
if (m_init)
{
switch (_id)
{
case WM_USER_WINDOW_CREATE:
{
Msg* msg = (Msg*)_lparam;
HWND hwnd = CreateWindowA("bgfx"
, msg->m_title.c_str()
, WS_OVERLAPPEDWINDOW|WS_VISIBLE
, msg->m_x
, msg->m_y
, msg->m_width
, msg->m_height
, m_hwnd[0]
, NULL
, (HINSTANCE)GetModuleHandle(NULL)
, 0
);
clear(hwnd);
m_hwnd[_wparam] = hwnd;
m_flags[_wparam] = msg->m_flags;
WindowHandle handle = { (uint16_t)_wparam };
m_eventQueue.postSizeEvent(handle, msg->m_width, msg->m_height);
m_eventQueue.postWindowEvent(handle, hwnd);
delete msg;
}
break;
case WM_USER_WINDOW_DESTROY:
{
WindowHandle handle = { (uint16_t)_wparam };
PostMessageA(m_hwnd[_wparam], WM_CLOSE, 0, 0);
m_eventQueue.postWindowEvent(handle);
DestroyWindow(m_hwnd[_wparam]);
m_hwnd[_wparam] = 0;
}
break;
case WM_USER_WINDOW_SET_TITLE:
{
Msg* msg = (Msg*)_lparam;
SetWindowTextA(m_hwnd[_wparam], msg->m_title.c_str() );
delete msg;
}
break;
case WM_USER_WINDOW_SET_POS:
{
Msg* msg = (Msg*)_lparam;
SetWindowPos(m_hwnd[_wparam], 0, msg->m_x, msg->m_y, 0, 0
, SWP_NOACTIVATE
| SWP_NOOWNERZORDER
| SWP_NOSIZE
);
delete msg;
}
break;
case WM_USER_WINDOW_SET_SIZE:
{
uint32_t width = GET_X_LPARAM(_lparam);
uint32_t height = GET_Y_LPARAM(_lparam);
adjust(m_hwnd[_wparam], width, height, true);
}
break;
case WM_USER_WINDOW_TOGGLE_FRAME:
{
if (m_frame)
{
m_oldWidth = m_width;
m_oldHeight = m_height;
}
adjust(m_hwnd[_wparam], m_oldWidth, m_oldHeight, !m_frame);
}
break;
case WM_USER_WINDOW_MOUSE_LOCK:
setMouseLock(m_hwnd[_wparam], !!_lparam);
break;
case WM_DESTROY:
break;
case WM_QUIT:
case WM_CLOSE:
if (_hwnd == m_hwnd[0])
{
m_exit = true;
m_eventQueue.postExitEvent();
}
else
{
destroyWindow(findHandle(_hwnd) );
}
// Don't process message. Window will be destroyed later.
return 0;
case WM_SIZING:
{
WindowHandle handle = findHandle(_hwnd);
if (isValid(handle)
&& ENTRY_WINDOW_FLAG_ASPECT_RATIO & m_flags[handle.idx])
{
RECT& rect = *(RECT*)_lparam;
uint32_t width = rect.right - rect.left - m_frameWidth;
uint32_t height = rect.bottom - rect.top - m_frameHeight;
// Recalculate size according to aspect ratio
switch (_wparam)
{
case WMSZ_LEFT:
case WMSZ_RIGHT:
{
float aspectRatio = 1.0f/m_aspectRatio;
width = bx::uint32_max(ENTRY_DEFAULT_WIDTH/4, width);
height = uint32_t(float(width)*aspectRatio);
}
break;
default:
{
float aspectRatio = m_aspectRatio;
height = bx::uint32_max(ENTRY_DEFAULT_HEIGHT/4, height);
width = uint32_t(float(height)*aspectRatio);
}
break;
}
// Recalculate position using different anchor points
switch(_wparam)
{
case WMSZ_LEFT:
case WMSZ_TOPLEFT:
case WMSZ_BOTTOMLEFT:
rect.left = rect.right - width - m_frameWidth;
rect.bottom = rect.top + height + m_frameHeight;
break;
default:
rect.right = rect.left + width + m_frameWidth;
rect.bottom = rect.top + height + m_frameHeight;
break;
}
m_eventQueue.postSizeEvent(findHandle(_hwnd), width, height);
}
}
return 0;
case WM_SIZE:
{
WindowHandle handle = findHandle(_hwnd);
if (isValid(handle) )
{
uint32_t width = GET_X_LPARAM(_lparam);
uint32_t height = GET_Y_LPARAM(_lparam);
m_width = width;
m_height = height;
m_eventQueue.postSizeEvent(handle, m_width, m_height);
}
}
break;
case WM_SYSCOMMAND:
switch (_wparam)
{
case SC_MINIMIZE:
case SC_RESTORE:
{
HWND parent = GetWindow(_hwnd, GW_OWNER);
if (NULL != parent)
{
PostMessage(parent, _id, _wparam, _lparam);
}
}
}
break;
case WM_MOUSEMOVE:
{
int32_t mx = GET_X_LPARAM(_lparam);
int32_t my = GET_Y_LPARAM(_lparam);
if (_hwnd == m_mouseLock)
{
mx -= m_mx;
my -= m_my;
if (0 == mx
&& 0 == my)
{
break;
}
setMousePos(_hwnd, m_mx, m_my);
}
m_eventQueue.postMouseEvent(findHandle(_hwnd), mx, my, m_mz);
}
break;
case WM_MOUSEWHEEL:
{
POINT pt = { GET_X_LPARAM(_lparam), GET_Y_LPARAM(_lparam) };
ScreenToClient(_hwnd, &pt);
int32_t mx = pt.x;
int32_t my = pt.y;
m_mz += GET_WHEEL_DELTA_WPARAM(_wparam)/WHEEL_DELTA;
m_eventQueue.postMouseEvent(findHandle(_hwnd), mx, my, m_mz);
}
break;
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
case WM_LBUTTONDBLCLK:
{
mouseCapture(_hwnd, _id == WM_LBUTTONDOWN);
int32_t mx = GET_X_LPARAM(_lparam);
int32_t my = GET_Y_LPARAM(_lparam);
m_eventQueue.postMouseEvent(findHandle(_hwnd), mx, my, m_mz, MouseButton::Left, _id == WM_LBUTTONDOWN);
}
break;
case WM_MBUTTONDOWN:
case WM_MBUTTONUP:
case WM_MBUTTONDBLCLK:
{
mouseCapture(_hwnd, _id == WM_MBUTTONDOWN);
int32_t mx = GET_X_LPARAM(_lparam);
int32_t my = GET_Y_LPARAM(_lparam);
m_eventQueue.postMouseEvent(findHandle(_hwnd), mx, my, m_mz, MouseButton::Middle, _id == WM_MBUTTONDOWN);
}
break;
case WM_RBUTTONDOWN:
case WM_RBUTTONUP:
case WM_RBUTTONDBLCLK:
{
mouseCapture(_hwnd, _id == WM_RBUTTONDOWN);
int32_t mx = GET_X_LPARAM(_lparam);
int32_t my = GET_Y_LPARAM(_lparam);
m_eventQueue.postMouseEvent(findHandle(_hwnd), mx, my, m_mz, MouseButton::Right, _id == WM_RBUTTONDOWN);
}
break;
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
case WM_KEYUP:
case WM_SYSKEYUP:
{
uint8_t modifiers = translateKeyModifiers();
Key::Enum key = translateKey(_wparam);
WindowHandle handle = findHandle(_hwnd);
if (Key::Print == key
&& 0x3 == ( (uint32_t)(_lparam)>>30) )
{
// VK_SNAPSHOT doesn't generate keydown event. Fire on down event when previous
// key state bit is set to 1 and transition state bit is set to 1.
//
// http://msdn.microsoft.com/en-us/library/windows/desktop/ms646280%28v=vs.85%29.aspx
m_eventQueue.postKeyEvent(handle, key, modifiers, true);
}
m_eventQueue.postKeyEvent(handle, key, modifiers, _id == WM_KEYDOWN || _id == WM_SYSKEYDOWN);
}
break;
case WM_CHAR:
{
uint8_t utf8[4] = {};
uint8_t len = (uint8_t)WideCharToMultiByte(CP_UTF8
, 0
, (LPCWSTR)&_wparam
, 1
, (LPSTR)utf8
, BX_COUNTOF(utf8)
, NULL
, NULL
);
if (0 != len)
{
WindowHandle handle = findHandle(_hwnd);
m_eventQueue.postCharEvent(handle, len, utf8);
}
}
break;
default:
break;
}
}
return DefWindowProc(_hwnd, _id, _wparam, _lparam);
}
WindowHandle findHandle(HWND _hwnd)
{
bx::LwMutexScope scope(m_lock);
for (uint32_t ii = 0, num = m_windowAlloc.getNumHandles(); ii < num; ++ii)
{
uint16_t idx = m_windowAlloc.getHandleAt(ii);
if (_hwnd == m_hwnd[idx])
{
WindowHandle handle = { idx };
return handle;
}
}
WindowHandle invalid = { UINT16_MAX };
return invalid;
}
void clear(HWND _hwnd)
{
RECT rect;
GetWindowRect(_hwnd, &rect);
HBRUSH brush = CreateSolidBrush(RGB(0, 0, 0) );
HDC hdc = GetDC(_hwnd);
SelectObject(hdc, brush);
FillRect(hdc, &rect, brush);
}
void adjust(HWND _hwnd, uint32_t _width, uint32_t _height, bool _windowFrame)
{
m_width = _width;
m_height = _height;
m_aspectRatio = float(_width)/float(_height);
ShowWindow(_hwnd, SW_SHOWNORMAL);
RECT rect;
RECT newrect = {0, 0, (LONG)_width, (LONG)_height};
DWORD style = WS_POPUP|WS_SYSMENU;
if (m_frame)
{
GetWindowRect(_hwnd, &m_rect);
m_style = GetWindowLong(_hwnd, GWL_STYLE);
}
if (_windowFrame)
{
rect = m_rect;
style = m_style;
}
else
{
#if defined(__MINGW32__)
rect = m_rect;
style = m_style;
#else
HMONITOR monitor = MonitorFromWindow(_hwnd, MONITOR_DEFAULTTONEAREST);
MONITORINFO mi;
mi.cbSize = sizeof(mi);
GetMonitorInfo(monitor, &mi);
newrect = mi.rcMonitor;
rect = mi.rcMonitor;
m_aspectRatio = float(newrect.right - newrect.left)/float(newrect.bottom - newrect.top);
#endif // !defined(__MINGW__)
}
SetWindowLong(_hwnd, GWL_STYLE, style);
uint32_t prewidth = newrect.right - newrect.left;
uint32_t preheight = newrect.bottom - newrect.top;
AdjustWindowRect(&newrect, style, FALSE);
m_frameWidth = (newrect.right - newrect.left) - prewidth;
m_frameHeight = (newrect.bottom - newrect.top ) - preheight;
UpdateWindow(_hwnd);
if (rect.left == -32000
|| rect.top == -32000)
{
rect.left = 0;
rect.top = 0;
}
int32_t left = rect.left;
int32_t top = rect.top;
int32_t width = (newrect.right-newrect.left);
int32_t height = (newrect.bottom-newrect.top);
if (!_windowFrame)
{
float aspectRatio = 1.0f/m_aspectRatio;
width = bx::uint32_max(ENTRY_DEFAULT_WIDTH/4, width);
height = uint32_t(float(width)*aspectRatio);
left = newrect.left+(newrect.right -newrect.left-width)/2;
top = newrect.top +(newrect.bottom-newrect.top-height)/2;
}
HWND parent = GetWindow(_hwnd, GW_OWNER);
if (NULL != parent)
{
if (_windowFrame)
{
SetWindowPos(parent
, HWND_TOP
, -32000
, -32000
, 0
, 0
, SWP_SHOWWINDOW
);
}
else
{
SetWindowPos(parent
, HWND_TOP
, newrect.left
, newrect.top
, newrect.right-newrect.left
, newrect.bottom-newrect.top
, SWP_SHOWWINDOW
);
}
}
SetWindowPos(_hwnd
, HWND_TOP
, left
, top
, width
, height
, SWP_SHOWWINDOW
);
ShowWindow(_hwnd, SW_RESTORE);
m_frame = _windowFrame;
}
void setMousePos(HWND _hwnd, int32_t _mx, int32_t _my)
{
POINT pt = { _mx, _my };
ClientToScreen(_hwnd, &pt);
SetCursorPos(pt.x, pt.y);
}
void setMouseLock(HWND _hwnd, bool _lock)
{
if (_hwnd != m_mouseLock)
{
if (_lock)
{
m_mx = m_width/2;
m_my = m_height/2;
ShowCursor(false);
setMousePos(_hwnd, m_mx, m_my);
}
else
{
setMousePos(_hwnd, m_mx, m_my);
ShowCursor(true);
}
m_mouseLock = _hwnd;
}
}
static LRESULT CALLBACK wndProc(HWND _hwnd, UINT _id, WPARAM _wparam, LPARAM _lparam);
EventQueue m_eventQueue;
bx::LwMutex m_lock;
bx::HandleAllocT<ENTRY_CONFIG_MAX_WINDOWS> m_windowAlloc;
HWND m_hwnd[ENTRY_CONFIG_MAX_WINDOWS];
uint32_t m_flags[ENTRY_CONFIG_MAX_WINDOWS];
RECT m_rect;
DWORD m_style;
uint32_t m_width;
uint32_t m_height;
uint32_t m_oldWidth;
uint32_t m_oldHeight;
uint32_t m_frameWidth;
uint32_t m_frameHeight;
float m_aspectRatio;
int32_t m_mx;
int32_t m_my;
int32_t m_mz;
bool m_frame;
HWND m_mouseLock;
bool m_init;
bool m_exit;
};
static Context s_ctx;
LRESULT CALLBACK Context::wndProc(HWND _hwnd, UINT _id, WPARAM _wparam, LPARAM _lparam)
{
return s_ctx.process(_hwnd, _id, _wparam, _lparam);
}
const Event* poll()
{
return s_ctx.m_eventQueue.poll();
}
const Event* poll(WindowHandle _handle)
{
return s_ctx.m_eventQueue.poll(_handle);
}
void release(const Event* _event)
{
s_ctx.m_eventQueue.release(_event);
}
WindowHandle createWindow(int32_t _x, int32_t _y, uint32_t _width, uint32_t _height, uint32_t _flags, const char* _title)
{
bx::LwMutexScope scope(s_ctx.m_lock);
WindowHandle handle = { s_ctx.m_windowAlloc.alloc() };
if (UINT16_MAX != handle.idx)
{
Msg* msg = new Msg;
msg->m_x = _x;
msg->m_y = _y;
msg->m_width = _width;
msg->m_height = _height;
msg->m_title = _title;
msg->m_flags = _flags;
PostMessage(s_ctx.m_hwnd[0], WM_USER_WINDOW_CREATE, handle.idx, (LPARAM)msg);
}
return handle;
}
void destroyWindow(WindowHandle _handle)
{
if (UINT16_MAX != _handle.idx)
{
PostMessage(s_ctx.m_hwnd[0], WM_USER_WINDOW_DESTROY, _handle.idx, 0);
bx::LwMutexScope scope(s_ctx.m_lock);
s_ctx.m_windowAlloc.free(_handle.idx);
}
}
void setWindowPos(WindowHandle _handle, int32_t _x, int32_t _y)
{
Msg* msg = new Msg;
msg->m_x = _x;
msg->m_y = _y;
PostMessage(s_ctx.m_hwnd[0], WM_USER_WINDOW_SET_POS, _handle.idx, (LPARAM)msg);
}
void setWindowSize(WindowHandle _handle, uint32_t _width, uint32_t _height)
{
PostMessage(s_ctx.m_hwnd[0], WM_USER_WINDOW_SET_SIZE, _handle.idx, (_height<<16) | (_width&0xffff) );
}
void setWindowTitle(WindowHandle _handle, const char* _title)
{
Msg* msg = new Msg;
msg->m_title = _title;
PostMessage(s_ctx.m_hwnd[0], WM_USER_WINDOW_SET_TITLE, _handle.idx, (LPARAM)msg);
}
void toggleWindowFrame(WindowHandle _handle)
{
PostMessage(s_ctx.m_hwnd[0], WM_USER_WINDOW_TOGGLE_FRAME, _handle.idx, 0);
}
void toggleFullscreen(WindowHandle _handle)
{
PostMessage(s_ctx.m_hwnd[0], WM_USER_WINDOW_TOGGLE_FRAME, _handle.idx, 0);
}
void setMouseLock(WindowHandle _handle, bool _lock)
{
PostMessage(s_ctx.m_hwnd[0], WM_USER_WINDOW_MOUSE_LOCK, _handle.idx, _lock);
}
int32_t MainThreadEntry::threadFunc(void* _userData)
{
MainThreadEntry* self = (MainThreadEntry*)_userData;
int32_t result = main(self->m_argc, self->m_argv);
PostMessage(s_ctx.m_hwnd[0], WM_QUIT, 0, 0);
return result;
}
} // namespace entry
int main(int _argc, char** _argv)
{
using namespace entry;
return s_ctx.run(_argc, _argv);
}
#endif // BX_PLATFORM_WINDOWS
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