Add Qt3 development HEAD version

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;
+}