/
GraphicsAttributes.cpp
150 lines (134 loc) · 4.65 KB
/
GraphicsAttributes.cpp
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// ---------------------------------------------------------------
// GraphicsAttributes.cpp
// ---------------------------------------------------------------
#include <AMReX.H>
#include <iostream>
using std::cout;
using std::cerr;
using std::endl;
#include <GraphicsAttributes.H>
#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/Intrinsic.h>
#undef index
// -------------------------------------------------------------------
unsigned long buildShift(unsigned long mask) {
unsigned long shift(0);
while( ! (mask & 1)) {
mask >>= 1;
++shift;
}
return shift;
}
// -------------------------------------------------------------------
GraphicsAttributes::GraphicsAttributes(Widget topLevel)
: appTopLevel(topLevel)
{
display = XtDisplay(topLevel);
screen = XtScreen(topLevel);
screennumber = DefaultScreen(display);
/*
int status = XMatchVisualInfo(display, DefaultScreen(display),
8, PseudoColor, &visual_info);
cout << "----------- status = " << status << endl;
//status = 0;
if(status != 0) {
cout << "***************** using PseudoColor visual" << endl;
visual = visual_info.visual;
depth = 8;
red_shift = blue_shift = green_shift = 0;
} else {
int status = XMatchVisualInfo(display, DefaultScreen(display),
DefaultDepth(display, screennumber),
TrueColor, &visual_info);
if(status != 0) {
cout << "***************** using TrueColor visual" << endl;
visual = visual_info.visual;
depth = DefaultDepth(display, screennumber);
red_shift = buildShift(visual_info.red_mask);
green_shift = buildShift(visual_info.green_mask);
blue_shift = buildShift(visual_info.blue_mask);
} else if( status == 0 ) {
amrex::Abort("Error: bad XMatchVisualInfo: no PseudoColor Visual.");
}
}
*/
/*
*/
int status(0);
status = XMatchVisualInfo(display, DefaultScreen(display),
DefaultDepth(display, screennumber),
TrueColor, &visual_info);
if(status != 0) {
//cout << "***************** using TrueColor visual" << endl;
visual = visual_info.visual;
#ifdef AV_NX_FIX
int nItems(-1);
Visual *defaultV(XDefaultVisual(display, screennumber));
XVisualInfo *defaultXVI, defaultXVITemplate;
defaultXVITemplate.visualid = XVisualIDFromVisual(defaultV);
defaultXVI = XGetVisualInfo(display, VisualIDMask, &defaultXVITemplate, &nItems);
if(visual_info.red_mask == defaultXVI->red_mask &&
visual_info.green_mask == defaultXVI->green_mask &&
visual_info.blue_mask == defaultXVI->blue_mask)
{
visual = defaultV;
}
XFree(defaultXVI);
#endif
depth = DefaultDepth(display, screennumber);
red_shift = buildShift(visual_info.red_mask);
green_shift = buildShift(visual_info.green_mask);
blue_shift = buildShift(visual_info.blue_mask);
//cout << "***************** depth = " << depth << endl;
} else {
status = XMatchVisualInfo(display, DefaultScreen(display),
8, PseudoColor, &visual_info);
if(status != 0) {
cout << "***************** using PseudoColor visual" << endl;
visual = visual_info.visual;
depth = 8;
red_shift = 0;
blue_shift = 0;
green_shift = 0;
} else if( status == 0 ) {
amrex::Abort("Error: bad XMatchVisualInfo: no PseudoColor Visual.");
}
}
gc = screen->default_gc;
root = RootWindow(display, DefaultScreen(display));
bytesPerPixel = CalculateNBP();
}
// -------------------------------------------------------------------
int GraphicsAttributes::PBitmapPaddedWidth(int width) const {
return (1+(width-1)/(BitmapPad(display)/8))*BitmapPad(display)/8;
}
// -------------------------------------------------------------------
// return number of bytes per pixel this display uses
int GraphicsAttributes::CalculateNBP() {
int planes = DisplayPlanes(display, DefaultScreen(display));
if(planes <= 8) {
return(1);
}
if(planes <= 16) {
return(2);
}
if(planes <= 32) {
return(4);
}
return(1);
} /* CalculateNBP() */
// -------------------------------------------------------------------
ostream& operator<<(ostream &os, const GraphicsAttributes &ga) {
return os << "("
<< "red_shift = " << ga.PRedShift() << ", "
<< "green_shift = " << ga.PGreenShift() << ", "
<< "blue_shift = " << ga.PBlueShift() << ", "
<< "red_mask = " << ga.PRedMask() << ", "
<< "green_mask = " << ga.PGreenMask() << ", "
<< "blue_mask = " << ga.PBlueMask() << ", "
<< "bits_per_rgb = " << ga.PBitsPerRGB()
<< ")";
}
// -------------------------------------------------------------------
// -------------------------------------------------------------------