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Tomaka17 2014-07-27 16:11:23 +02:00
parent 2e41d25cb5
commit 758fd069c6
1 changed files with 0 additions and 179 deletions
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179
src/x11/mod.rs
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@ -197,182 +197,3 @@ impl Drop for Window {
unsafe { ffi::XCloseDisplay(self.display) }
}
}
/*
printf( "Getting matching framebuffer configs\n" );
int fbcount;
GLXFBConfig* fbc = glXChooseFBConfig(display, DefaultScreen(display), visual_attribs, &fbcount);
if (!fbc)
{
printf( "Failed to retrieve a framebuffer config\n" );
exit(1);
}
printf( "Found %d matching FB configs.\n", fbcount );
// Pick the FB config/visual with the most samples per pixel
printf( "Getting XVisualInfos\n" );
int best_fbc = -1, worst_fbc = -1, best_num_samp = -1, worst_num_samp = 999;
int i;
for (i=0; i<fbcount; ++i)
{
XVisualInfo *vi = glXGetVisualFromFBConfig( display, fbc[i] );
if ( vi )
{
int samp_buf, samples;
glXGetFBConfigAttrib( display, fbc[i], GLX_SAMPLE_BUFFERS, &samp_buf );
glXGetFBConfigAttrib( display, fbc[i], GLX_SAMPLES , &samples );
printf( " Matching fbconfig %d, visual ID 0x%2x: SAMPLE_BUFFERS = %d,"
" SAMPLES = %d\n",
i, vi -> visualid, samp_buf, samples );
if ( best_fbc < 0 || samp_buf && samples > best_num_samp )
best_fbc = i, best_num_samp = samples;
if ( worst_fbc < 0 || !samp_buf || samples < worst_num_samp )
worst_fbc = i, worst_num_samp = samples;
}
XFree( vi );
}
GLXFBConfig bestFbc = fbc[ best_fbc ];
// Be sure to free the FBConfig list allocated by glXChooseFBConfig()
XFree( fbc );
// Get a visual
XVisualInfo *vi = glXGetVisualFromFBConfig( display, bestFbc );
printf( "Chosen visual ID = 0x%x\n", vi->visualid );
printf( "Creating colormap\n" );
XSetWindowAttributes swa;
Colormap cmap;
swa.colormap = cmap = XCreateColormap( display,
RootWindow( display, vi->screen ),
vi->visual, AllocNone );
swa.background_pixmap = None ;
swa.border_pixel = 0;
swa.event_mask = StructureNotifyMask;
printf( "Creating window\n" );
Window win = XCreateWindow( display, RootWindow( display, vi->screen ),
0, 0, 100, 100, 0, vi->depth, InputOutput,
vi->visual,
CWBorderPixel|CWColormap|CWEventMask, &swa );
if ( !win )
{
printf( "Failed to create window.\n" );
exit(1);
}
// Done with the visual info data
XFree( vi );
XStoreName( display, win, "GL 3.0 Window" );
printf( "Mapping window\n" );
XMapWindow( display, win );
// Get the default screen's GLX extension list
const char *glxExts = glXQueryExtensionsString( display,
DefaultScreen( display ) );
// NOTE: It is not necessary to create or make current to a context before
// calling glXGetProcAddressARB
glXCreateContextAttribsARBProc glXCreateContextAttribsARB = 0;
glXCreateContextAttribsARB = (glXCreateContextAttribsARBProc)
glXGetProcAddressARB( (const GLubyte *) "glXCreateContextAttribsARB" );
GLXContext ctx = 0;
// Install an X error handler so the application won't exit if GL 3.0
// context allocation fails.
//
// Note this error handler is global. All display connections in all threads
// of a process use the same error handler, so be sure to guard against other
// threads issuing X commands while this code is running.
ctxErrorOccurred = false;
int (*oldHandler)(Display*, XErrorEvent*) =
XSetErrorHandler(&ctxErrorHandler);
// Check for the GLX_ARB_create_context extension string and the function.
// If either is not present, use GLX 1.3 context creation method.
if ( !isExtensionSupported( glxExts, "GLX_ARB_create_context" ) ||
!glXCreateContextAttribsARB )
{
printf( "glXCreateContextAttribsARB() not found"
" ... using old-style GLX context\n" );
ctx = glXCreateNewContext( display, bestFbc, GLX_RGBA_TYPE, 0, True );
}
// If it does, try to get a GL 3.0 context!
else
{
int context_attribs[] =
{
GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
GLX_CONTEXT_MINOR_VERSION_ARB, 0,
//GLX_CONTEXT_FLAGS_ARB , GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
None
};
printf( "Creating context\n" );
ctx = glXCreateContextAttribsARB( display, bestFbc, 0,
True, context_attribs );
// Sync to ensure any errors generated are processed.
XSync( display, False );
if ( !ctxErrorOccurred && ctx )
printf( "Created GL 3.0 context\n" );
else
{
// Couldn't create GL 3.0 context. Fall back to old-style 2.x context.
// When a context version below 3.0 is requested, implementations will
// return the newest context version compatible with OpenGL versions less
// than version 3.0.
// GLX_CONTEXT_MAJOR_VERSION_ARB = 1
context_attribs[1] = 1;
// GLX_CONTEXT_MINOR_VERSION_ARB = 0
context_attribs[3] = 0;
ctxErrorOccurred = false;
printf( "Failed to create GL 3.0 context"
" ... using old-style GLX context\n" );
ctx = glXCreateContextAttribsARB( display, bestFbc, 0,
True, context_attribs );
}
}
// Sync to ensure any errors generated are processed.
XSync( display, False );
// Restore the original error handler
XSetErrorHandler( oldHandler );
if ( ctxErrorOccurred || !ctx )
{
printf( "Failed to create an OpenGL context\n" );
exit(1);
}
// Verifying that context is a direct context
if ( ! glXIsDirect ( display, ctx ) )
{
printf( "Indirect GLX rendering context obtained\n" );
}
else
{
printf( "Direct GLX rendering context obtained\n" );
}
printf( "Making context current\n" );
glXMakeCurrent( display, win, ctx );
glClearColor( 0, 0.5, 1, 1 );
glClear( GL_COLOR_BUFFER_BIT );
glXSwapBuffers ( display, win );
*/