void Profiler::init(ID3D11Device* graphicsDevice)
{
GPA_RegisterLoggingCallback(GPA_LOGGING_ALL, &GPUPerfLogging);
GPA_Initialize();
GPA_OpenContext(graphicsDevice);
GPA_GetCounterIndex("PrimitivesIn", &primitivesInCounterID);
GPA_GetCounterIndex("PAPixelsPerTriangle", &pixelsPerTriangleCounterID);
GPA_EnableCounter(primitivesInCounterID);
GPA_EnableCounter(pixelsPerTriangleCounterID);
GPA_GetPassCount(&numPasses);
}
void *glx_init(glx_opengl_version_t version)
{
Display *display;
struct state_glx *context;
context = (struct state_glx *) malloc(sizeof(struct state_glx));
context->magic = GLX_MAGIC;
x11_lock();
display = x11_acquire_display();
if(!display) {
free(context);
x11_unlock();
return NULL;
}
#ifdef HAVE_GPUPERFAPI
GPA_Status gpa_status;
gpa_status = GPA_Initialize();
assert(gpa_status == GPA_STATUS_OK);
#endif
// Get a matching FB config
static int visual_attribs[] =
{
GLX_X_RENDERABLE , True,
GLX_DRAWABLE_TYPE , GLX_WINDOW_BIT,
GLX_RENDER_TYPE , GLX_RGBA_BIT,
GLX_X_VISUAL_TYPE , GLX_TRUE_COLOR,
GLX_RED_SIZE , 8,
GLX_GREEN_SIZE , 8,
GLX_BLUE_SIZE , 8,
GLX_ALPHA_SIZE , 8,
GLX_DEPTH_SIZE , 24,
GLX_STENCIL_SIZE , 8,
GLX_DOUBLEBUFFER , True,
//GLX_SAMPLE_BUFFERS , 1,
//GLX_SAMPLES , 4,
None
};
int glx_major, glx_minor;
// FBConfigs were added in GLX version 1.3.
if ( !glXQueryVersion( display, &glx_major, &glx_minor ) ||
( ( glx_major == 1 ) && ( glx_minor < 3 ) ) || ( glx_major < 1 ) )
{
printf( "Invalid GLX version" );
goto error;
}
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" );
goto error;
}
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, (unsigned int) 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", (unsigned int) vi->visualid );
printf( "Creating colormap\n" );
XSetWindowAttributes swa;
swa.colormap = context->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" );
context->win = XCreateWindow( display, RootWindow( display, vi->screen ),
0, 0, 1920, 1080, 0, vi->depth, InputOutput,
vi->visual,
CWBorderPixel|CWColormap|CWEventMask, &swa );
XMoveWindow(display, context->win, 0, 0);
if ( !context->win )
{
printf( "Failed to create window.\n" );
goto error;
}
// Done with the visual info data
XFree( vi );
/* We don't need this for UG */
/*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" );
context->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" );
context->ctx = glXCreateNewContext( display, bestFbc, GLX_RGBA_TYPE, 0, True );
if(!VERSION_IS_UNSPECIFIED(version)) {
return NULL;
}
}
// 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
};
if(!VERSION_IS_UNSPECIFIED(version)) {
context_attribs[1] = VERSION_GET_MAJOR(version);
context_attribs[3] = VERSION_GET_MINOR(version);
}
printf( "Creating context\n" );
context->ctx = glXCreateContextAttribsARB( display, bestFbc, 0,
True, context_attribs );
// Sync to ensure any errors generated are processed.
XSync( display, False );
if ( !ctxErrorOccurred && context->ctx )
printf( "Created GL %d.%d context\n", context_attribs[1], context_attribs[3]);
else
{
if(VERSION_IS_UNSPECIFIED(version)) {
// 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" );
context->ctx = glXCreateContextAttribsARB( display, bestFbc, 0,
True, context_attribs );
} else {
// we explicitly requested context which we cannot obtain - return error then
goto error;
}
}
}
// Sync to ensure any errors generated are processed.
XSync( display, False );
// Restore the original error handler
XSetErrorHandler( oldHandler );
if ( ctxErrorOccurred || !context->ctx )
{
printf( "Failed to create an OpenGL context\n" );
goto error;
}
// Verifying that context is a direct context
if ( ! glXIsDirect ( display, context->ctx ) )
{
printf( "Indirect GLX rendering context obtained\n" );
}
else
{
printf( "Direct GLX rendering context obtained\n" );
}
printf( "Making context current\n" );
glXMakeCurrent( display, context->win, context->ctx );
glewInit();
x11_unlock();
glx_validate(context);
#ifdef HAVE_GPUPERFAPI
gpa_status = GPA_OpenContext( context->ctx );
assert(gpa_status == GPA_STATUS_OK);
#endif
return (void *) context;
error:
free(context);
x11_unlock();
return NULL;
}
