639 lines
15 KiB
C++
639 lines
15 KiB
C++
/*
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* Copyright 2011-2013 Branimir Karadzic. All rights reserved.
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* License: http://www.opensource.org/licenses/BSD-2-Clause
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*/
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#include <bx/bx.h>
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#if BX_PLATFORM_WINDOWS
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#include "entry_p.h"
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#include <bx/countof.h>
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#include <bx/uint32_t.h>
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#include <bx/thread.h>
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#include <windowsx.h>
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#define DEFAULT_WIDTH 1280
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#define DEFAULT_HEIGHT 720
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#define WM_USER_SET_WINDOW_SIZE (WM_USER+0)
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#define WM_USER_TOGGLE_WINDOW_FRAME (WM_USER+1)
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#define WM_USER_MOUSE_LOCK (WM_USER+2)
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extern int _main_(int _argc, char** _argv);
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namespace entry
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{
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struct TranslateKeyModifiers
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{
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int m_vk;
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Modifier::Enum m_modifier;
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};
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static const TranslateKeyModifiers s_translateKeyModifiers[8] =
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{
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{ VK_LMENU, Modifier::LeftAlt },
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{ VK_RMENU, Modifier::RightAlt },
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{ VK_LCONTROL, Modifier::LeftCtrl },
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{ VK_RCONTROL, Modifier::RightCtrl },
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{ VK_LSHIFT, Modifier::LeftShift },
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{ VK_RSHIFT, Modifier::RightShift },
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{ VK_LWIN, Modifier::LeftMeta },
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{ VK_RWIN, Modifier::RightMeta },
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};
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static uint8_t translateKeyModifiers()
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{
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uint8_t modifiers = 0;
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for (uint32_t ii = 0; ii < countof(s_translateKeyModifiers); ++ii)
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{
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const TranslateKeyModifiers& tkm = s_translateKeyModifiers[ii];
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modifiers |= 0 > GetKeyState(tkm.m_vk) ? tkm.m_modifier : Modifier::None;
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}
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return modifiers;
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}
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static uint8_t s_translateKey[256];
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static Key::Enum translateKey(WPARAM _wparam)
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{
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return (Key::Enum)s_translateKey[_wparam&0xff];
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}
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struct MainThreadEntry
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{
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int m_argc;
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char** m_argv;
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static int32_t threadFunc(void* _userData);
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};
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struct Context
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{
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Context()
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: m_frame(true)
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, m_init(false)
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, m_exit(false)
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{
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memset(s_translateKey, 0, sizeof(s_translateKey) );
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s_translateKey[VK_ESCAPE] = Key::Esc;
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s_translateKey[VK_RETURN] = Key::Return;
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s_translateKey[VK_TAB] = Key::Tab;
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s_translateKey[VK_BACK] = Key::Backspace;
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s_translateKey[VK_SPACE] = Key::Space;
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s_translateKey[VK_UP] = Key::Up;
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s_translateKey[VK_DOWN] = Key::Down;
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s_translateKey[VK_LEFT] = Key::Left;
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s_translateKey[VK_RIGHT] = Key::Right;
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s_translateKey[VK_PRIOR] = Key::PageUp;
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s_translateKey[VK_NEXT] = Key::PageUp;
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s_translateKey[VK_HOME] = Key::Home;
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s_translateKey[VK_END] = Key::End;
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s_translateKey[VK_SNAPSHOT] = Key::Print;
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s_translateKey[VK_OEM_PLUS] = Key::Plus;
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s_translateKey[VK_OEM_MINUS] = Key::Minus;
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s_translateKey[VK_F1] = Key::F1;
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s_translateKey[VK_F2] = Key::F2;
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s_translateKey[VK_F3] = Key::F3;
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s_translateKey[VK_F4] = Key::F4;
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s_translateKey[VK_F5] = Key::F5;
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s_translateKey[VK_F6] = Key::F6;
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s_translateKey[VK_F7] = Key::F7;
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s_translateKey[VK_F8] = Key::F8;
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s_translateKey[VK_F9] = Key::F9;
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s_translateKey[VK_F10] = Key::F10;
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s_translateKey[VK_F11] = Key::F11;
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s_translateKey[VK_F12] = Key::F12;
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s_translateKey[VK_NUMPAD0] = Key::NumPad0;
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s_translateKey[VK_NUMPAD1] = Key::NumPad1;
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s_translateKey[VK_NUMPAD2] = Key::NumPad2;
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s_translateKey[VK_NUMPAD3] = Key::NumPad3;
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s_translateKey[VK_NUMPAD4] = Key::NumPad4;
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s_translateKey[VK_NUMPAD5] = Key::NumPad5;
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s_translateKey[VK_NUMPAD6] = Key::NumPad6;
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s_translateKey[VK_NUMPAD7] = Key::NumPad7;
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s_translateKey[VK_NUMPAD8] = Key::NumPad8;
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s_translateKey[VK_NUMPAD9] = Key::NumPad9;
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s_translateKey['0'] = Key::Key0;
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s_translateKey['1'] = Key::Key1;
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s_translateKey['2'] = Key::Key2;
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s_translateKey['3'] = Key::Key3;
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s_translateKey['4'] = Key::Key4;
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s_translateKey['5'] = Key::Key5;
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s_translateKey['6'] = Key::Key6;
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s_translateKey['7'] = Key::Key7;
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s_translateKey['8'] = Key::Key8;
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s_translateKey['9'] = Key::Key9;
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s_translateKey['A'] = Key::KeyA;
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s_translateKey['B'] = Key::KeyB;
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s_translateKey['C'] = Key::KeyC;
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s_translateKey['D'] = Key::KeyD;
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s_translateKey['E'] = Key::KeyE;
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s_translateKey['F'] = Key::KeyF;
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s_translateKey['G'] = Key::KeyG;
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s_translateKey['H'] = Key::KeyH;
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s_translateKey['I'] = Key::KeyI;
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s_translateKey['J'] = Key::KeyJ;
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s_translateKey['K'] = Key::KeyK;
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s_translateKey['L'] = Key::KeyL;
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s_translateKey['M'] = Key::KeyM;
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s_translateKey['N'] = Key::KeyN;
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s_translateKey['O'] = Key::KeyO;
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s_translateKey['P'] = Key::KeyP;
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s_translateKey['Q'] = Key::KeyQ;
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s_translateKey['R'] = Key::KeyR;
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s_translateKey['S'] = Key::KeyS;
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s_translateKey['T'] = Key::KeyT;
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s_translateKey['U'] = Key::KeyU;
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s_translateKey['V'] = Key::KeyV;
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s_translateKey['W'] = Key::KeyW;
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s_translateKey['X'] = Key::KeyX;
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s_translateKey['Y'] = Key::KeyY;
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s_translateKey['Z'] = Key::KeyZ;
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}
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int32_t main(int _argc, char** _argv)
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{
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HINSTANCE instance = (HINSTANCE)GetModuleHandle(NULL);
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WNDCLASSEX wnd;
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memset(&wnd, 0, sizeof(wnd) );
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wnd.cbSize = sizeof(wnd);
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wnd.lpfnWndProc = DefWindowProc;
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wnd.hInstance = instance;
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wnd.hIcon = LoadIcon(instance, IDI_APPLICATION);
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wnd.hCursor = LoadCursor(instance, IDC_ARROW);
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wnd.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
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wnd.lpszClassName = "bgfx_letterbox";
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wnd.hIconSm = LoadIcon(instance, IDI_APPLICATION);
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RegisterClassExA(&wnd);
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memset(&wnd, 0, sizeof(wnd) );
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wnd.cbSize = sizeof(wnd);
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wnd.style = CS_HREDRAW | CS_VREDRAW;
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wnd.lpfnWndProc = wndProc;
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wnd.hInstance = instance;
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wnd.hIcon = LoadIcon(instance, IDI_APPLICATION);
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wnd.hCursor = LoadCursor(instance, IDC_ARROW);
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wnd.lpszClassName = "bgfx";
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wnd.hIconSm = LoadIcon(instance, IDI_APPLICATION);
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RegisterClassExA(&wnd);
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HWND hwnd = CreateWindowA("bgfx_letterbox"
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, "BGFX"
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, WS_POPUP|WS_SYSMENU
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, -32000
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, -32000
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, 0
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, 0
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, NULL
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, NULL
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, instance
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, 0
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);
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m_hwnd = CreateWindowA("bgfx"
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, "BGFX"
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, WS_OVERLAPPEDWINDOW|WS_VISIBLE
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, 0
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, 0
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, DEFAULT_WIDTH
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, DEFAULT_HEIGHT
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, hwnd
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, NULL
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, instance
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, 0
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);
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bgfx::winSetHwnd(m_hwnd);
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adjust(DEFAULT_WIDTH, DEFAULT_HEIGHT, true);
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m_width = DEFAULT_WIDTH;
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m_height = DEFAULT_HEIGHT;
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m_oldWidth = DEFAULT_WIDTH;
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m_oldHeight = DEFAULT_HEIGHT;
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MainThreadEntry mte;
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mte.m_argc = _argc;
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mte.m_argv = _argv;
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bx::Thread thread;
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thread.init(mte.threadFunc, &mte);
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m_init = true;
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m_eventQueue.postSizeEvent(m_width, m_height);
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MSG msg;
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msg.message = WM_NULL;
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while (!m_exit)
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{
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WaitMessage();
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while (0 != PeekMessage(&msg, NULL, 0U, 0U, PM_REMOVE) )
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{
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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}
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thread.shutdown();
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DestroyWindow(m_hwnd);
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DestroyWindow(hwnd);
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return 0;
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}
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LRESULT process(HWND _hwnd, UINT _id, WPARAM _wparam, LPARAM _lparam)
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{
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if (m_init)
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{
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switch (_id)
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{
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case WM_USER_SET_WINDOW_SIZE:
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{
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uint32_t width = GET_X_LPARAM(_lparam);
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uint32_t height = GET_Y_LPARAM(_lparam);
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adjust(width, height, true);
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}
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break;
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case WM_USER_TOGGLE_WINDOW_FRAME:
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{
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if (m_frame)
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{
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m_oldWidth = m_width;
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m_oldHeight = m_height;
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}
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adjust(m_oldWidth, m_oldHeight, !m_frame);
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}
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break;
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case WM_USER_MOUSE_LOCK:
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setMouseLock(!!_lparam);
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break;
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case WM_DESTROY:
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break;
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case WM_QUIT:
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case WM_CLOSE:
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m_exit = true;
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m_eventQueue.postExitEvent();
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break;
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case WM_SIZING:
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{
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RECT clientRect;
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GetClientRect(_hwnd, &clientRect);
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uint32_t width = clientRect.right-clientRect.left;
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uint32_t height = clientRect.bottom-clientRect.top;
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RECT& rect = *(RECT*)_lparam;
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uint32_t frameWidth = rect.right-rect.left - width;
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uint32_t frameHeight = rect.bottom-rect.top - height;
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switch (_wparam)
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{
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case WMSZ_LEFT:
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case WMSZ_RIGHT:
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{
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float aspectRatio = 1.0f/m_aspectRatio;
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width = bx::uint32_max(DEFAULT_WIDTH/4, width);
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height = uint32_t(float(width)*aspectRatio);
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}
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break;
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default:
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{
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float aspectRatio = m_aspectRatio;
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height = bx::uint32_max(DEFAULT_HEIGHT/4, height);
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width = uint32_t(float(height)*aspectRatio);
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}
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break;
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}
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rect.right = rect.left + width + frameWidth;
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rect.bottom = rect.top + height + frameHeight;
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SetWindowPos(_hwnd
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, HWND_TOP
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, rect.left
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, rect.top
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, (rect.right-rect.left)
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, (rect.bottom-rect.top)
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, SWP_SHOWWINDOW
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);
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}
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return 0;
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case WM_SIZE:
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{
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uint32_t width = GET_X_LPARAM(_lparam);
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uint32_t height = GET_Y_LPARAM(_lparam);
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if (m_width != width
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|| m_height != height)
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{
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m_width = width;
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m_height = height;
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m_eventQueue.postSizeEvent(m_width, m_height);
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}
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}
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break;
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case WM_SYSCOMMAND:
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switch (_wparam)
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{
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case SC_MINIMIZE:
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case SC_RESTORE:
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{
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HWND parent = GetWindow(_hwnd, GW_OWNER);
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if (NULL != parent)
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{
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PostMessage(parent, _id, _wparam, _lparam);
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}
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}
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}
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break;
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case WM_MOUSEMOVE:
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{
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int32_t mx = GET_X_LPARAM(_lparam);
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int32_t my = GET_Y_LPARAM(_lparam);
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if (m_mouseLock)
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{
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mx -= m_mx;
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my -= m_my;
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if (0 == mx
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&& 0 == my)
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{
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break;
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}
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setMousePos(m_mx, m_my);
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}
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m_eventQueue.postMouseEvent(mx, my);
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}
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break;
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case WM_LBUTTONDOWN:
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case WM_LBUTTONUP:
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case WM_LBUTTONDBLCLK:
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{
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int32_t mx = GET_X_LPARAM(_lparam);
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int32_t my = GET_Y_LPARAM(_lparam);
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m_eventQueue.postMouseEvent(mx, my, MouseButton::Left, _id == WM_LBUTTONDOWN);
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}
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break;
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case WM_MBUTTONDOWN:
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case WM_MBUTTONUP:
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case WM_MBUTTONDBLCLK:
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{
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int32_t mx = GET_X_LPARAM(_lparam);
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int32_t my = GET_Y_LPARAM(_lparam);
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m_eventQueue.postMouseEvent(mx, my, MouseButton::Middle, _id == WM_MBUTTONDOWN);
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}
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break;
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case WM_RBUTTONUP:
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case WM_RBUTTONDOWN:
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case WM_RBUTTONDBLCLK:
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{
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int32_t mx = GET_X_LPARAM(_lparam);
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int32_t my = GET_Y_LPARAM(_lparam);
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m_eventQueue.postMouseEvent(mx, my, MouseButton::Right, _id == WM_RBUTTONDOWN);
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}
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break;
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case WM_KEYDOWN:
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case WM_SYSKEYDOWN:
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case WM_KEYUP:
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case WM_SYSKEYUP:
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{
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uint8_t modifiers = translateKeyModifiers();
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Key::Enum key = translateKey(_wparam);
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m_eventQueue.postKeyEvent(key, modifiers, _id == WM_KEYDOWN || _id == WM_SYSKEYDOWN);
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}
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break;
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default:
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break;
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}
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}
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return DefWindowProc(_hwnd, _id, _wparam, _lparam);
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}
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void adjust(uint32_t _width, uint32_t _height, bool _windowFrame)
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{
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m_width = _width;
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m_height = _height;
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m_aspectRatio = float(_width)/float(_height);
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ShowWindow(m_hwnd, SW_SHOWNORMAL);
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RECT rect;
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RECT newrect = {0, 0, (LONG)_width, (LONG)_height};
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DWORD style = WS_POPUP|WS_SYSMENU;
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if (m_frame)
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{
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GetWindowRect(m_hwnd, &m_rect);
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m_style = GetWindowLong(m_hwnd, GWL_STYLE);
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}
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if (_windowFrame)
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{
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rect = m_rect;
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style = m_style;
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}
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else
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{
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#if defined(__MINGW32__)
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rect = m_rect;
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style = m_style;
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#else
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HMONITOR monitor = MonitorFromWindow(m_hwnd, MONITOR_DEFAULTTONEAREST);
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MONITORINFO mi;
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mi.cbSize = sizeof(mi);
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GetMonitorInfo(monitor, &mi);
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newrect = mi.rcMonitor;
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rect = mi.rcMonitor;
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#endif // !defined(__MINGW__)
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}
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SetWindowLong(m_hwnd, GWL_STYLE, style);
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AdjustWindowRect(&newrect, style, FALSE);
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UpdateWindow(m_hwnd);
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if (rect.left == -32000
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|| rect.top == -32000)
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{
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rect.left = 0;
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rect.top = 0;
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}
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int32_t left = rect.left;
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int32_t top = rect.top;
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int32_t width = (newrect.right-newrect.left);
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int32_t height = (newrect.bottom-newrect.top);
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if (!_windowFrame)
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{
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float aspectRatio = 1.0f/m_aspectRatio;
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width = bx::uint32_max(DEFAULT_WIDTH/4, width);
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height = uint32_t(float(width)*aspectRatio);
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left = newrect.left+(newrect.right-newrect.left-width)/2;
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top = newrect.top+(newrect.bottom-newrect.top-height)/2;
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}
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HWND parent = GetWindow(m_hwnd, GW_OWNER);
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if (NULL != parent)
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{
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if (_windowFrame)
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{
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SetWindowPos(parent
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, HWND_TOP
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, -32000
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, -32000
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, 0
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, 0
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, SWP_SHOWWINDOW
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);
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}
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else
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{
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SetWindowPos(parent
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, HWND_TOP
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, newrect.left
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, newrect.top
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, newrect.right-newrect.left
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, newrect.bottom-newrect.top
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, SWP_SHOWWINDOW
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);
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}
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|
}
|
|
|
|
SetWindowPos(m_hwnd
|
|
, HWND_TOP
|
|
, left
|
|
, top
|
|
, width
|
|
, height
|
|
, SWP_SHOWWINDOW
|
|
);
|
|
|
|
ShowWindow(m_hwnd, SW_RESTORE);
|
|
|
|
m_frame = _windowFrame;
|
|
}
|
|
|
|
void setMousePos(int32_t _mx, int32_t _my)
|
|
{
|
|
POINT pt = { _mx, _my };
|
|
ClientToScreen(m_hwnd, &pt);
|
|
SetCursorPos(pt.x, pt.y);
|
|
}
|
|
|
|
void setMouseLock(bool _lock)
|
|
{
|
|
if (_lock != m_mouseLock)
|
|
{
|
|
if (_lock)
|
|
{
|
|
m_mx = m_width/2;
|
|
m_my = m_height/2;
|
|
ShowCursor(false);
|
|
setMousePos(m_mx, m_my);
|
|
}
|
|
else
|
|
{
|
|
setMousePos(m_mx, m_my);
|
|
ShowCursor(true);
|
|
}
|
|
|
|
m_mouseLock = _lock;
|
|
}
|
|
}
|
|
|
|
static LRESULT CALLBACK wndProc(HWND _hwnd, UINT _id, WPARAM _wparam, LPARAM _lparam);
|
|
|
|
EventQueue m_eventQueue;
|
|
|
|
HWND m_hwnd;
|
|
RECT m_rect;
|
|
DWORD m_style;
|
|
uint32_t m_width;
|
|
uint32_t m_height;
|
|
uint32_t m_oldWidth;
|
|
uint32_t m_oldHeight;
|
|
float m_aspectRatio;
|
|
|
|
int32_t m_mx;
|
|
int32_t m_my;
|
|
|
|
bool m_frame;
|
|
bool 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();
|
|
}
|
|
|
|
void release(const Event* _event)
|
|
{
|
|
s_ctx.m_eventQueue.release(_event);
|
|
}
|
|
|
|
void setWindowSize(uint32_t _width, uint32_t _height)
|
|
{
|
|
PostMessage(s_ctx.m_hwnd, WM_USER_SET_WINDOW_SIZE, 0, (_height<<16) | (_width&0xffff) );
|
|
}
|
|
|
|
void toggleWindowFrame()
|
|
{
|
|
PostMessage(s_ctx.m_hwnd, WM_USER_TOGGLE_WINDOW_FRAME, 0, 0);
|
|
}
|
|
|
|
void setMouseLock(bool _lock)
|
|
{
|
|
PostMessage(s_ctx.m_hwnd, WM_USER_MOUSE_LOCK, 0, _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, WM_QUIT, 0, 0);
|
|
return result;
|
|
}
|
|
|
|
} // namespace entry
|
|
|
|
int main(int _argc, char** _argv)
|
|
{
|
|
using namespace entry;
|
|
return s_ctx.main(_argc, _argv);
|
|
}
|
|
|
|
#endif // BX_PLATFORM_WINDOWS
|