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