51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
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// Try to figure out when vblank is and notify steamcompmgr to render some time before it
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#include <thread>
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#include <vector>
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#include <chrono>
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#include "X11/Xlib.h"
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#include "assert.h"
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#include "vblankmanager.hpp"
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#include "steamcompmgr.hpp"
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#include "wlserver.h"
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#include "main.hpp"
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static Display *g_nestedDpy;
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static XEvent repaintMsg;
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void vblankThreadRun( void )
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{
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while ( true )
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{
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int usec = 1.0 / g_nOutputRefresh * 1000.0 * 1000.0;
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std::chrono::system_clock::time_point timePoint =
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std::chrono::system_clock::now() + std::chrono::microseconds( usec );
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std::this_thread::sleep_until( timePoint );
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XSendEvent( g_nestedDpy , DefaultRootWindow( g_nestedDpy ), True, SubstructureRedirectMask, &repaintMsg);
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XFlush( g_nestedDpy );
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}
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}
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void vblank_init( void )
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{
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g_nestedDpy = XOpenDisplay( wlserver_get_nested_display() );
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assert( g_nestedDpy != nullptr );
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repaintMsg.xclient.type = ClientMessage;
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repaintMsg.xclient.window = DefaultRootWindow( g_nestedDpy );
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repaintMsg.xclient.format = 32;
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repaintMsg.xclient.data.l[0] = 24;
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repaintMsg.xclient.data.l[1] = 8;
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std::thread vblankThread( vblankThreadRun );
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vblankThread.detach();
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}
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void vblank_mark_possible_vblank( void )
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{
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}
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