138 lines
4.2 KiB
C++
138 lines
4.2 KiB
C++
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#include "LowLevelWindow_X11.h"
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#include "archutils/Unix/X11Helper.h"
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#include "RageException.h"
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#include <stack>
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#include <math.h> // ceil()
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#include <GL/glx.h> // All sorts of stuff...
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X11Helper::Callback_t helperCallback
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{
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}
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LowLevelWindow_X11::LowLevelWindow_X11()
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{
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if(!X11Helper::Go() ) { RageException::Throw("Failed to establish a connection with the X server."); }
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}
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LowLevelWindow_X11::~LowLevelWindow_X11()
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{
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X11Helper::Stop(); // Xlib cleans up the window for us
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}
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void *LowLevelWindow_X11::GetProcAddress(CString s)
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{
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return (void*) glXGetProcAddress( (GLubyte) s.c_str() );
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}
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CString LowLevelWindow_X11::TryVideoMode(RageDisplay::VideoModeParams p, bool &bNewDeviceOut)
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{
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int i;
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int bpppc; // Bits per pixel per channel
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int visAttribs[11];
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XVisualInfo *xvi;
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XEvent ev;
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XSizeHints hints;
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GLXContext ctxt;
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stack<XEvent> otherEvs;
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// XXX: LLW_SDL allows the window to be resized. Do we really want to?
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hints.flags = PMinSize | PMaxSize | PBaseSize;
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hints.min_width = hints.max_width = hints.base_width = p.width;
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hints.min_height = hints.max_height = hints.base_height = p.height;
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if(!windowIsOpen || p.bpp != CurrentParams.bpp)
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{
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// Different depth, or we didn't make a window before. New context.
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bNewDeviceOut = true;
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bpppc = ceil(p.bpp / 4.0);
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visAttribs[0] = GLX_RGBA;
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visAttribs[1] = GLX_DOUBLEBUFFER;
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visAttribs[2] = GLX_RED_SIZE; visAttribs[3] = bpppc;
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visAttribs[4] = GLX_GREEN_SIZE; visAttribs[5] = bpppc;
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visAttribs[6] = GLX_BLUE_SIZE; visAttribs[7] = bpppc;
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visAttribs[8] = GLX_ALPHA_SIZE; visAttribs[9] = p.bpp
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- (bpppc * 3);
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// Alpha gets however many bits are left...
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visAttribs[10] = None;
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xvi = glXChooseVisual(X11Helper::Dpy(),
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DefaultScreen(X11Helper::Dpy() ), visAttribs);
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if(!vinfo) { return "No visual available for that depth."; }
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if(!X11Helper::MakeWindow(xvi->screen, xvi->depth, xvi->visual,
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p.width, p.height) )
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{ return "Failed to create the window."; }
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ctxt = glXCreateContext(X11Helper::Dpy(), xvi, NULL, True);
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// HACK: Wait for the MapNotify event, without spinning and
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// eating CPU unnecessarily, and without smothering other
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// events. Do this by grabbing all events, remembering
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// uninteresting events, and putting them back on the queue
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// after MapNotify arrives.
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while(true)
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{
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XNextEvent(X11Helper::Dpy(), &ev);
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if(ev.type == MapNotify) { break; }
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else
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{ otherEvs.push(ev); }
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}
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while(!otherEvs.empty() )
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{
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XPutBackEvent(X11Helper::Dpy(), otherEvs.top() );
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otherEvs.pop();
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}
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glXMakeCurrent(X11Helper::Dpy(), X11Helper::Win(), ctxt);
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windowIsOpen = true;
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} else { bNewDeviceOut = false; }
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XSetWMNormalHints(X11Helper::Dpy(), X11Helper::Win(), &hints);
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return ""; // Success
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}
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void LowLevelWindow_X11::SwapBuffers()
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{
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glXSwapBuffers(X11Helper::Dpy(), X11Helper::Win() );
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}
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void LowLevelWindow_X11::Update()
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{
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// XXX: Handle close events, connection lost events, etc.
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return;
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}
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/*
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* (c) 2005 Ben Anderson
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, and/or sell copies of the Software, and to permit persons to
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* whom the Software is furnished to do so, provided that the above
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* copyright notice(s) and this permission notice appear in all copies of
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* the Software and that both the above copyright notice(s) and this
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* permission notice appear in supporting documentation.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
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* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
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* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
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* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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