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/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#define QT_CLEAN_NAMESPACE // avoid clashes with Xmd.h
#include <qstringlist.h>
#include <qgl.h>
#include "glinfo.h"
#include <GL/glx.h>
#include <GL/gl.h>
#include <GL/glu.h>
#ifndef GLX_NONE_EXT
#define GLX_NONE_EXT 0x8000
#endif
typedef struct visualAttribs {
/* X visual attribs */
int id;
int c_class;
int depth;
int redMask, greenMask, blueMask;
int colormapSize;
int bitsPerRGB;
/* GL visual attribs */
int supportsGL;
int transparent;
int bufferSize;
int level;
int rgba;
int doubleBuffer;
int stereo;
int auxBuffers;
int redSize, greenSize, blueSize, alphaSize;
int depthSize;
int stencilSize;
int accumRedSize, accumGreenSize, accumBlueSize, accumAlphaSize;
int numSamples, numMultisample;
int visualCaveat;
} VisualAttribs;
static void screenInfo( Display *dpy, int scrnum, TQString &infotext )
{
const char *serverVendor = glXQueryServerString( dpy, scrnum, GLX_VENDOR );
const char *serverVersion = glXQueryServerString( dpy, scrnum, GLX_VERSION );
const char *serverExtensions = glXQueryServerString( dpy, scrnum, GLX_EXTENSIONS );
const char *clientVendor = glXGetClientString( dpy, GLX_VENDOR );
const char *clientVersion = glXGetClientString( dpy, GLX_VERSION );
const char *clientExtensions = glXGetClientString( dpy, GLX_EXTENSIONS );
const char *glxExtensions = glXQueryExtensionsString( dpy, scrnum );
const char *glVendor = (const char *) glGetString( GL_VENDOR );
const char *glRenderer = (const char *) glGetString( GL_RENDERER );
const char *glVersion = (const char *) glGetString( GL_VERSION );
const char *glExtensions = (const char *) glGetString( GL_EXTENSIONS );
const char *gluVersion = (const char *) gluGetString( (GLenum) GLU_VERSION );
const char *gluExtensions = (const char *) gluGetString( (GLenum) GLU_EXTENSIONS );
infotext.sprintf( "%sServer GLX vendor string: %s\n", infotext.ascii(), serverVendor );
infotext.sprintf( "%sServer GLX version string: %s\n", infotext.ascii(), serverVersion );
infotext.sprintf( "%sServer GLX extensions:\n", infotext.ascii() );
infotext += TQString( serverExtensions ).replace( ' ', '\n' ) + "\n\n";
infotext.sprintf( "%sClient GLX vendor string: %s\n", infotext.ascii(), clientVendor );
infotext.sprintf( "%sClient GLX version string: %s\n", infotext.ascii(), clientVersion );
infotext.sprintf( "%sClient GLX extensions:\n", infotext.ascii() );
infotext += TQString( clientExtensions ).replace( ' ', '\n' ) + "\n\n";
infotext.sprintf( "%sGLX extensions:\n", infotext.ascii() );
infotext += TQString( glxExtensions ).replace( ' ', '\n' ) + "\n\n";
infotext.sprintf( "%sOpenGL vendor string: %s\n", infotext.ascii(), glVendor );
infotext.sprintf( "%sOpenGL renderer string: %s\n", infotext.ascii(), glRenderer );
infotext.sprintf( "%sOpenGL version string: %s\n", infotext.ascii(), glVersion );
infotext.sprintf( "%sOpenGL extensions:\n", infotext.ascii() );
infotext += TQString( glExtensions ).replace( ' ', '\n' ) + "\n\n";
infotext.sprintf( "%sGLU version: %s\n", infotext.ascii(), gluVersion );
infotext.sprintf( "%sGLU extensions:\n", infotext.ascii() );
infotext += TQString( gluExtensions ).replace( ' ', '\n' ) + "\n\n";
}
static const char * visualClassName( int cls )
{
switch ( cls ) {
case StaticColor:
return "StaticColor";
case PseudoColor:
return "PseudoColor";
case StaticGray:
return "StaticGray";
case GrayScale:
return "GrayScale";
case TrueColor:
return "TrueColor";
case DirectColor:
return "DirectColor";
default:
return "";
}
}
static const char * caveatString( int caveat )
{
switch ( caveat ) {
#if defined(GLX_EXT_visual_rating)
case GLX_NONE_EXT:
return "None";
case GLX_SLOW_VISUAL_EXT:
return "Slow";
case GLX_NON_CONFORMANT_VISUAL_EXT:
return "Nonconformant";
#endif
default:
return "<none>";
}
}
static void visualAttribs( Display * dpy, XVisualInfo * vi, VisualAttribs * attribs )
{
memset( attribs, 0, sizeof( VisualAttribs ) );
attribs->id = vi->visualid;
attribs->c_class = vi->c_class;
attribs->depth = vi->depth;
attribs->redMask = vi->red_mask;
attribs->greenMask = vi->green_mask;
attribs->blueMask = vi->blue_mask;
attribs->colormapSize = vi->colormap_size;
attribs->bitsPerRGB = vi->bits_per_rgb;
if ( glXGetConfig( dpy, vi, GLX_USE_GL, &attribs->supportsGL ) != 0 )
return;
attribs->accumAlphaSize = 0;
glXGetConfig( dpy, vi, GLX_BUFFER_SIZE, &attribs->bufferSize );
glXGetConfig( dpy, vi, GLX_LEVEL, &attribs->level );
glXGetConfig( dpy, vi, GLX_RGBA, &attribs->rgba );
glXGetConfig( dpy, vi, GLX_DOUBLEBUFFER, &attribs->doubleBuffer );
glXGetConfig( dpy, vi, GLX_STEREO, &attribs->stereo );
glXGetConfig( dpy, vi, GLX_AUX_BUFFERS, &attribs->auxBuffers );
glXGetConfig( dpy, vi, GLX_RED_SIZE, &attribs->redSize );
glXGetConfig( dpy, vi, GLX_GREEN_SIZE, &attribs->greenSize );
glXGetConfig( dpy, vi, GLX_BLUE_SIZE, &attribs->blueSize );
glXGetConfig( dpy, vi, GLX_ALPHA_SIZE, &attribs->alphaSize );
glXGetConfig( dpy, vi, GLX_DEPTH_SIZE, &attribs->depthSize );
glXGetConfig( dpy, vi, GLX_STENCIL_SIZE, &attribs->stencilSize );
glXGetConfig( dpy, vi, GLX_ACCUM_RED_SIZE, &attribs->accumRedSize );
glXGetConfig( dpy, vi, GLX_ACCUM_GREEN_SIZE, &attribs->accumGreenSize );
glXGetConfig( dpy, vi, GLX_ACCUM_BLUE_SIZE, &attribs->accumBlueSize );
glXGetConfig( dpy, vi, GLX_ACCUM_ALPHA_SIZE, &attribs->accumAlphaSize );
attribs->transparent = 0; // transparent pixel missing
attribs->numSamples = 0; // multisample tests missing
attribs->numMultisample = 0;
#if defined(GLX_EXT_visual_rating)
const char *ext = glXQueryExtensionsString( dpy, vi->screen );
if ( ext && strstr( ext, "GLX_EXT_visual_rating" ) )
glXGetConfig(dpy, vi, GLX_VISUAL_CAVEAT_EXT, &attribs->visualCaveat);
else
attribs->visualCaveat = GLX_NONE_EXT;
#else
attribs->visualCaveat = 0;
#endif
}
static void visualInfo( Display *dpy, int scrnum, TQString &configs )
{
TQString str;
XVisualInfo *visuals, temp;
int numVisuals;
long mask;
int i;
/* get list of all visuals on this screen */
temp.screen = scrnum;
mask = VisualScreenMask;
visuals = XGetVisualInfo( dpy, mask, &temp, &numVisuals );
VisualAttribs attribs;
configs.append( "Vis Vis Visual Trans buff lev render DB ste r g b a aux dep ste accum buffers MS MS\n"
" ID Depth Type parent size el type reo sz sz sz sz buf th ncl r g b a num bufs Caveat\n"
"-----------------------------------------------------------------------------------------------------------\n" );
for ( i = 0; i < numVisuals; i++ ) {
visualAttribs( dpy, &visuals[i], &attribs );
str.sprintf( "0x%2x %2d %-12s %d %2d %d %-4s %d %d %d %d %d %d"
" %d %2d %d %2d %2d %2d %2d %d %d %s\n",
attribs.id,
attribs.depth,
visualClassName( attribs.c_class ),
attribs.transparent,
attribs.bufferSize,
attribs.level,
attribs.rgba ? "rgba" : "ci",
attribs.doubleBuffer,
attribs.stereo,
attribs.redSize,
attribs.greenSize,
attribs.blueSize,
attribs.alphaSize,
attribs.auxBuffers,
attribs.depthSize,
attribs.stencilSize,
attribs.accumRedSize,
attribs.accumGreenSize,
attribs.accumBlueSize,
attribs.accumAlphaSize,
attribs.numSamples,
attribs.numMultisample,
caveatString( attribs.visualCaveat ) );
configs.append( str );
}
XFree( visuals );
}
GLInfo::GLInfo()
{
TQGLWidget gl((TQWidget *) 0);
gl.makeCurrent();
Display *dpy;
char *displayName = 0;
int numScreens, scrNum;
dpy = gl.x11Display();
if ( !dpy ) {
qWarning( "Error: unable to open display %s\n", displayName );
}
numScreens = ScreenCount( dpy );
infotext.sprintf( "Display name: %s\nDirect rendering: %s\n", DisplayString( dpy ),
gl.format().directRendering() ? "Yes" : "No" );
for ( scrNum = 0; scrNum < numScreens; scrNum++ ) {
screenInfo( dpy, scrNum, infotext );
visualInfo( dpy, scrNum, infotext );
if ( scrNum + 1 < numScreens )
infotext.append( "\n\n" );
}
}
TQString GLInfo::info()
{
return infotext;
}
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