diff options
Diffstat (limited to 'examples/demo/opengl/glinfo_x11.cpp')
| -rw-r--r-- | examples/demo/opengl/glinfo_x11.cpp | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/examples/demo/opengl/glinfo_x11.cpp b/examples/demo/opengl/glinfo_x11.cpp new file mode 100644 index 0000000..1137ef9 --- /dev/null +++ b/examples/demo/opengl/glinfo_x11.cpp @@ -0,0 +1,257 @@ +/**************************************************************************** +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for Qt. 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, QString &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 += QString( 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 += QString( clientExtensions ).replace( ' ', '\n' ) + "\n\n"; + + infotext.sprintf( "%sGLX extensions:\n", infotext.ascii() ); + + infotext += QString( 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 += QString( glExtensions ).replace( ' ', '\n' ) + "\n\n"; + + infotext.sprintf( "%sGLU version: %s\n", infotext.ascii(), gluVersion ); + infotext.sprintf( "%sGLU extensions:\n", infotext.ascii() ); + + infotext += QString( 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, QString &configs ) +{ + QString 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() +{ + QGLWidget gl((QWidget *) 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" ); + } +} + +QString GLInfo::info() +{ + return infotext; +} |