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bgfx/examples/common/entry/entry_x11.cpp
Branimir Karadzic 22614cf946 x11: Post size event when initializing window.
2014-09-24 21:05:48 -07:00

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