526 lines
14 KiB
C++
526 lines
14 KiB
C++
/*
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* Copyright 2011-2014 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 "entry_p.h"
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#if ENTRY_CONFIG_USE_NATIVE && (BX_PLATFORM_FREEBSD || BX_PLATFORM_LINUX || BX_PLATFORM_RPI)
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#define XK_MISCELLANY
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#define XK_LATIN1
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#include <X11/keysymdef.h>
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#include <bgfxplatform.h> // will include X11 which #defines None... Don't mess with order of includes.
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#undef None
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#include <bx/thread.h>
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#include <bx/os.h>
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#include <bx/handlealloc.h>
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#include <string.h> // memset
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#include <string>
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namespace entry
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{
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static uint8_t s_translateKey[512];
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static void initTranslateKey(uint16_t _xk, Key::Enum _key)
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{
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_xk += 256;
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BX_CHECK(_xk < BX_COUNTOF(s_translateKey), "Out of bounds %d.", _xk);
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s_translateKey[_xk&0x1ff] = (uint8_t)_key;
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}
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Key::Enum fromXk(uint16_t _xk)
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{
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_xk += 256;
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return 512 > _xk ? (Key::Enum)s_translateKey[_xk] : Key::None;
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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 Msg
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{
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Msg()
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: m_x(0)
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, m_y(0)
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, m_width(0)
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, m_height(0)
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, m_flags(0)
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{
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}
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int32_t m_x;
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int32_t m_y;
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uint32_t m_width;
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uint32_t m_height;
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uint32_t m_flags;
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std::string m_title;
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};
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struct Context
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{
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Context()
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: m_modifiers(Modifier::None)
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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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initTranslateKey(XK_Escape, Key::Esc);
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initTranslateKey(XK_Return, Key::Return);
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initTranslateKey(XK_Tab, Key::Tab);
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initTranslateKey(XK_BackSpace, Key::Backspace);
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initTranslateKey(XK_space, Key::Space);
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initTranslateKey(XK_Up, Key::Up);
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initTranslateKey(XK_Down, Key::Down);
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initTranslateKey(XK_Left, Key::Left);
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initTranslateKey(XK_Right, Key::Right);
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initTranslateKey(XK_Page_Up, Key::PageUp);
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initTranslateKey(XK_Page_Down, Key::PageUp);
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initTranslateKey(XK_Home, Key::Home);
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initTranslateKey(XK_KP_End, Key::End);
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initTranslateKey(XK_Print, Key::Print);
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initTranslateKey(XK_equal, Key::Plus);
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initTranslateKey(XK_minus, Key::Minus);
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initTranslateKey(XK_F1, Key::F1);
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initTranslateKey(XK_F2, Key::F2);
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initTranslateKey(XK_F3, Key::F3);
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initTranslateKey(XK_F4, Key::F4);
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initTranslateKey(XK_F5, Key::F5);
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initTranslateKey(XK_F6, Key::F6);
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initTranslateKey(XK_F7, Key::F7);
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initTranslateKey(XK_F8, Key::F8);
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initTranslateKey(XK_F9, Key::F9);
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initTranslateKey(XK_F10, Key::F10);
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initTranslateKey(XK_F11, Key::F11);
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initTranslateKey(XK_F12, Key::F12);
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initTranslateKey(XK_KP_Insert, Key::NumPad0);
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initTranslateKey(XK_KP_End, Key::NumPad1);
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initTranslateKey(XK_KP_Down, Key::NumPad2);
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initTranslateKey(XK_KP_Page_Down, Key::NumPad3);
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initTranslateKey(XK_KP_Left, Key::NumPad4);
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initTranslateKey(XK_KP_Begin, Key::NumPad5);
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initTranslateKey(XK_KP_Right, Key::NumPad6);
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initTranslateKey(XK_KP_Home, Key::NumPad7);
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initTranslateKey(XK_KP_Up, Key::NumPad8);
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initTranslateKey(XK_KP_Page_Up, Key::NumPad9);
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initTranslateKey('0', Key::Key0);
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initTranslateKey('1', Key::Key1);
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initTranslateKey('2', Key::Key2);
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initTranslateKey('3', Key::Key3);
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initTranslateKey('4', Key::Key4);
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initTranslateKey('5', Key::Key5);
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initTranslateKey('6', Key::Key6);
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initTranslateKey('7', Key::Key7);
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initTranslateKey('8', Key::Key8);
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initTranslateKey('9', Key::Key9);
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initTranslateKey('a', Key::KeyA);
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initTranslateKey('b', Key::KeyB);
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initTranslateKey('c', Key::KeyC);
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initTranslateKey('d', Key::KeyD);
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initTranslateKey('e', Key::KeyE);
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initTranslateKey('f', Key::KeyF);
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initTranslateKey('g', Key::KeyG);
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initTranslateKey('h', Key::KeyH);
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initTranslateKey('i', Key::KeyI);
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initTranslateKey('j', Key::KeyJ);
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initTranslateKey('k', Key::KeyK);
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initTranslateKey('l', Key::KeyL);
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initTranslateKey('m', Key::KeyM);
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initTranslateKey('n', Key::KeyN);
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initTranslateKey('o', Key::KeyO);
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initTranslateKey('p', Key::KeyP);
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initTranslateKey('q', Key::KeyQ);
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initTranslateKey('r', Key::KeyR);
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initTranslateKey('s', Key::KeyS);
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initTranslateKey('t', Key::KeyT);
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initTranslateKey('u', Key::KeyU);
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initTranslateKey('v', Key::KeyV);
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initTranslateKey('w', Key::KeyW);
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initTranslateKey('x', Key::KeyX);
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initTranslateKey('y', Key::KeyY);
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initTranslateKey('z', Key::KeyZ);
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}
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int32_t run(int _argc, char** _argv)
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{
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XInitThreads();
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m_display = XOpenDisplay(0);
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int32_t screen = DefaultScreen(m_display);
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m_depth = DefaultDepth(m_display, screen);
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m_visual = DefaultVisual(m_display, screen);
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m_root = RootWindow(m_display, screen);
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XSetWindowAttributes windowAttrs;
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memset(&windowAttrs, 0, sizeof(windowAttrs) );
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windowAttrs.background_pixmap = 0;
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windowAttrs.border_pixel = 0;
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windowAttrs.event_mask = 0
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| ButtonPressMask
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| ButtonReleaseMask
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| ExposureMask
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| KeyPressMask
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| KeyReleaseMask
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| PointerMotionMask
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| ResizeRedirectMask
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| StructureNotifyMask
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;
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m_windowAlloc.alloc();
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m_window[0] = XCreateWindow(m_display
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, m_root
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, 0, 0
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, ENTRY_DEFAULT_WIDTH, ENTRY_DEFAULT_HEIGHT, 0
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, m_depth
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, InputOutput
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, m_visual
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, CWBorderPixel|CWEventMask
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, &windowAttrs
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);
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// Clear window to black.
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XSetWindowAttributes attr;
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memset(&attr, 0, sizeof(attr) );
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XChangeWindowAttributes(m_display, m_window[0], CWBackPixel, &attr);
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const char* wmDeleteWindowName = "WM_DELETE_WINDOW";
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Atom wmDeleteWindow;
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XInternAtoms(m_display, (char **)&wmDeleteWindowName, 1, False, &wmDeleteWindow);
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XSetWMProtocols(m_display, m_window[0], &wmDeleteWindow, 1);
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XMapWindow(m_display, m_window[0]);
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XStoreName(m_display, m_window[0], "BGFX");
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//
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bgfx::x11SetDisplayWindow(m_display, m_window[0]);
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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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WindowHandle defaultWindow = { 0 };
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m_eventQueue.postSizeEvent(defaultWindow, ENTRY_DEFAULT_WIDTH, ENTRY_DEFAULT_HEIGHT);
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while (!m_exit)
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{
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if (XPending(m_display) )
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{
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XEvent event;
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XNextEvent(m_display, &event);
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switch (event.type)
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{
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case Expose:
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break;
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case ConfigureNotify:
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break;
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case ClientMessage:
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if ( (Atom)event.xclient.data.l[0] == wmDeleteWindow)
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{
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m_eventQueue.postExitEvent();
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}
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break;
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case ButtonPress:
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case ButtonRelease:
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{
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const XButtonEvent& xbutton = event.xbutton;
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MouseButton::Enum mb;
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switch (xbutton.button)
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{
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case Button1: mb = MouseButton::Left; break;
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case Button2: mb = MouseButton::Middle; break;
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case Button3: mb = MouseButton::Right; break;
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default: mb = MouseButton::None; break;
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}
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if (MouseButton::None != mb)
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{
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WindowHandle handle = findHandle(xbutton.window);
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m_eventQueue.postMouseEvent(handle
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, xbutton.x
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, xbutton.y
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, 0
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, mb
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, event.type == ButtonPress
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);
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}
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}
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break;
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case MotionNotify:
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{
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const XMotionEvent& xmotion = event.xmotion;
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WindowHandle handle = findHandle(xmotion.window);
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m_eventQueue.postMouseEvent(handle
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, xmotion.x
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, xmotion.y
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, 0
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);
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}
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break;
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case KeyPress:
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case KeyRelease:
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{
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XKeyEvent& xkey = event.xkey;
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KeySym keysym = XLookupKeysym(&xkey, 0);
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switch (keysym)
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{
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case XK_Meta_L: setModifier(Modifier::LeftMeta, KeyPress == event.type); break;
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case XK_Meta_R: setModifier(Modifier::RightMeta, KeyPress == event.type); break;
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case XK_Control_L: setModifier(Modifier::LeftCtrl, KeyPress == event.type); break;
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case XK_Control_R: setModifier(Modifier::RightCtrl, KeyPress == event.type); break;
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case XK_Shift_L: setModifier(Modifier::LeftShift, KeyPress == event.type); break;
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case XK_Shift_R: setModifier(Modifier::RightShift, KeyPress == event.type); break;
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case XK_Alt_L: setModifier(Modifier::LeftAlt, KeyPress == event.type); break;
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case XK_Alt_R: setModifier(Modifier::RightAlt, KeyPress == event.type); break;
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default:
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{
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Key::Enum key = fromXk(keysym);
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if (Key::None != key)
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{
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WindowHandle handle = findHandle(xkey.window);
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m_eventQueue.postKeyEvent(handle, key, m_modifiers, KeyPress == event.type);
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}
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}
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break;
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}
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}
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break;
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case ResizeRequest:
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{
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const XResizeRequestEvent& xresize = event.xresizerequest;
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XResizeWindow(xresize.display, xresize.window, xresize.width, xresize.height);
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WindowHandle handle = findHandle(xresize.window);
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if (isValid(handle) )
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{
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m_eventQueue.postSizeEvent(handle, xresize.width, xresize.height);
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}
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}
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break;
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}
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}
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}
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thread.shutdown();
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XUnmapWindow(m_display, m_window[0]);
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XDestroyWindow(m_display, m_window[0]);
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return EXIT_SUCCESS;
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}
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void setModifier(Modifier::Enum _modifier, bool _set)
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{
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m_modifiers &= ~_modifier;
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m_modifiers |= _set ? _modifier : 0;
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}
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void createWindow(WindowHandle _handle, Msg* msg)
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{
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XSetWindowAttributes windowAttrs;
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memset(&windowAttrs, 0, sizeof(windowAttrs) );
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windowAttrs.background_pixmap = 0;
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windowAttrs.border_pixel = 0;
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windowAttrs.event_mask = 0
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| ButtonPressMask
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| ButtonReleaseMask
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| ExposureMask
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| KeyPressMask
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| KeyReleaseMask
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| PointerMotionMask
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| ResizeRedirectMask
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| StructureNotifyMask
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;
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Window window = XCreateWindow(m_display
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, m_root
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, msg->m_x
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, msg->m_y
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, msg->m_width
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, msg->m_height
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, 0
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, m_depth
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, InputOutput
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, m_visual
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, CWBorderPixel|CWEventMask
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, &windowAttrs
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);
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m_window[_handle.idx] = window;
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// Clear window to black.
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XSetWindowAttributes attr;
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memset(&attr, 0, sizeof(attr) );
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XChangeWindowAttributes(m_display, window, CWBackPixel, &attr);
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const char* wmDeleteWindowName = "WM_DELETE_WINDOW";
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Atom wmDeleteWindow;
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XInternAtoms(m_display, (char **)&wmDeleteWindowName, 1, False, &wmDeleteWindow);
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XSetWMProtocols(m_display, window, &wmDeleteWindow, 1);
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XMapWindow(m_display, window);
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XStoreName(m_display, window, msg->m_title.c_str() );
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m_eventQueue.postSizeEvent(_handle, msg->m_width, msg->m_height);
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union cast
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{
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void* p;
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::Window w;
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};
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cast c;
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c.w = window;
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m_eventQueue.postWindowEvent(_handle, c.p);
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delete msg;
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}
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WindowHandle findHandle(Window _window)
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{
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bx::LwMutexScope scope(m_lock);
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for (uint32_t ii = 0, num = m_windowAlloc.getNumHandles(); ii < num; ++ii)
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{
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uint16_t idx = m_windowAlloc.getHandleAt(ii);
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if (_window == m_window[idx])
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{
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WindowHandle handle = { idx };
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return handle;
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}
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}
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WindowHandle invalid = { UINT16_MAX };
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return invalid;
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}
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uint8_t m_modifiers;
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bool m_exit;
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EventQueue m_eventQueue;
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bx::LwMutex m_lock;
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bx::HandleAllocT<ENTRY_CONFIG_MAX_WINDOWS> m_windowAlloc;
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int32_t m_depth;
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Visual* m_visual;
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Window m_root;
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Display* m_display;
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Window m_window[ENTRY_CONFIG_MAX_WINDOWS];
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uint32_t m_flags[ENTRY_CONFIG_MAX_WINDOWS];
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};
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static Context s_ctx;
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int32_t MainThreadEntry::threadFunc(void* _userData)
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{
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MainThreadEntry* self = (MainThreadEntry*)_userData;
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int32_t result = main(self->m_argc, self->m_argv);
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s_ctx.m_exit = true;
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return result;
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}
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const Event* poll()
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{
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return s_ctx.m_eventQueue.poll();
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}
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const Event* poll(WindowHandle _handle)
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{
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return s_ctx.m_eventQueue.poll(_handle);
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}
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void release(const Event* _event)
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{
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s_ctx.m_eventQueue.release(_event);
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}
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WindowHandle createWindow(int32_t _x, int32_t _y, uint32_t _width, uint32_t _height, uint32_t _flags, const char* _title)
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{
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bx::LwMutexScope scope(s_ctx.m_lock);
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WindowHandle handle = { s_ctx.m_windowAlloc.alloc() };
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if (isValid(handle) )
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{
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Msg* msg = new Msg;
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msg->m_x = _x;
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msg->m_y = _y;
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msg->m_width = _width;
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msg->m_height = _height;
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msg->m_title = _title;
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msg->m_flags = _flags;
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s_ctx.createWindow(handle, msg);
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}
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return handle;
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}
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void destroyWindow(WindowHandle _handle)
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{
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if (isValid(_handle) )
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{
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s_ctx.m_eventQueue.postWindowEvent(_handle, NULL);
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XUnmapWindow(s_ctx.m_display, s_ctx.m_window[_handle.idx]);
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XDestroyWindow(s_ctx.m_display, s_ctx.m_window[_handle.idx]);
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bx::LwMutexScope scope(s_ctx.m_lock);
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s_ctx.m_windowAlloc.free(_handle.idx);
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}
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}
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void setWindowPos(WindowHandle _handle, int32_t _x, int32_t _y)
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{
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BX_UNUSED(_handle, _x, _y);
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}
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void setWindowSize(WindowHandle _handle, uint32_t _width, uint32_t _height)
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{
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BX_UNUSED(_handle);
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XResizeRequestEvent ev;
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ev.type = ResizeRequest;
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ev.serial = 0;
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ev.send_event = true;
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ev.display = s_ctx.m_display;
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ev.window = s_ctx.m_window[0];
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ev.width = (int)_width;
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ev.height = (int)_height;
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XSendEvent(s_ctx.m_display, s_ctx.m_window[0], false, ResizeRedirectMask, (XEvent*)&ev);
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}
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void setWindowTitle(WindowHandle _handle, const char* _title)
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{
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XStoreName(s_ctx.m_display, s_ctx.m_window[_handle.idx], _title);
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}
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void toggleWindowFrame(WindowHandle _handle)
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{
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BX_UNUSED(_handle);
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}
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void setMouseLock(WindowHandle _handle, bool _lock)
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{
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BX_UNUSED(_handle, _lock);
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}
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} // namespace entry
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int main(int _argc, char** _argv)
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{
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using namespace entry;
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return s_ctx.run(_argc, _argv);
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}
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#endif // ENTRY_CONFIG_USE_NATIVE && (BX_PLATFORM_FREEBSD || BX_PLATFORM_LINUX || BX_PLATFORM_RPI)
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