/* $Id: glxinfo.c,v 1.10 2000/05/08 14:53:57 brianp Exp $ */
/*
* Copyright (C) 1999 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* This program is a work-alike of the IRIX glxinfo program.
* Command line options:
* -t print wide table
* -v print verbose information
* -display DisplayName specify the X display to interogate
*
* Brian Paul 26 January 2000
*/
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glx.h>
#include <stdio.h>
#include <string.h>
typedef enum
{
Normal,
Wide,
Verbose
} InfoMode;
struct visual_attribs
{
/* X visual attribs */
int id;
int klass;
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;
};
/*
* Print a list of extensions, with word-wrapping.
*/
static void
print_extension_list(const char *ext)
{
const char *indentString = " ";
const int indent = 4;
const int max = 79;
int width, i, j;
if (!ext || !ext[0])
return;
width = indent;
printf(indentString);
i = j = 0;
while (1) {
if (ext[j] == ' ' || ext[j] == 0) {
/* found end of an extension name */
const int len = j - i;
if (width + len > max) {
/* start a new line */
printf("\n");
width = indent;
printf(indentString);
}
/* print the extension name between ext[i] and ext[j] */
while (i < j) {
printf("%c", ext[i]);
i++;
}
/* either we're all done, or we'll continue with next extension */
width += len + 1;
if (ext[j] == 0) {
break;
}
else {
i++;
j++;
if (ext[j] == 0)
break;
printf(", ");
width += 2;
}
}
j++;
}
printf("\n");
}
static void
print_screen_info(Display *dpy, int scrnum)
{
Window win;
int attribSingle[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
None };
int attribDouble[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER,
None };
XSetWindowAttributes attr;
unsigned long mask;
Window root;
GLXContext ctx;
XVisualInfo *visinfo;
int width = 100, height = 100;
root = RootWindow(dpy, scrnum);
visinfo = glXChooseVisual(dpy, scrnum, attribSingle);
if (!visinfo) {
visinfo = glXChooseVisual(dpy, scrnum, attribDouble);
if (!visinfo) {
fprintf(stderr, "Error: couldn't find RGB GLX visual\n");
return;
}
}
attr.background_pixel = 0;
attr.border_pixel = 0;
attr.colormap = XCreateColormap(dpy, root, visinfo->visual, AllocNone);
attr.event_mask = StructureNotifyMask | ExposureMask;
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
win = XCreateWindow(dpy, root, 0, 0, width, height,
0, visinfo->depth, InputOutput,
visinfo->visual, mask, &attr);
ctx = glXCreateContext( dpy, visinfo, NULL, True );
if (!ctx) {
fprintf(stderr, "Error: glXCreateContext failed\n");
XDestroyWindow(dpy, win);
return;
}
if (glXMakeCurrent(dpy, win, ctx)) {
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(GLU_VERSION);
const char *gluExtensions = (const char *) gluGetString(GLU_EXTENSIONS);
printf("display: %s screen:%d\n", DisplayString(dpy), scrnum);
printf("direct rendering: %s\n", glXIsDirect(dpy, ctx) ? "Yes" : "No");
printf("server glx vendor string: %s\n", serverVendor);
printf("server glx version string: %s\n", serverVersion);
printf("server glx extensions:\n");
print_extension_list(serverExtensions);
printf("client glx vendor string: %s\n", clientVendor);
printf("client glx version string: %s\n", clientVersion);
printf("client glx extensions:\n");
print_extension_list(clientExtensions);
printf("GLX extensions:\n");
print_extension_list(glxExtensions);
printf("OpenGL vendor string: %s\n", glVendor);
printf("OpenGL renderer string: %s\n", glRenderer);
printf("OpenGL version string: %s\n", glVersion);
printf("OpenGL extensions:\n");
print_extension_list(glExtensions);
printf("glu version: %s\n", gluVersion);
printf("glu extensions:\n");
print_extension_list(gluExtensions);
}
else {
fprintf(stderr, "Error: glXMakeCurrent failed\n");
}
glXDestroyContext(dpy, ctx);
XDestroyWindow(dpy, win);
}
static const char *
visual_class_name(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 *
visual_class_abbrev(int cls)
{
switch (cls) {
case StaticColor:
return "sc";
case PseudoColor:
return "pc";
case StaticGray:
return "sg";
case GrayScale:
return "gs";
case TrueColor:
return "tc";
case DirectColor:
return "dc";
default:
return "";
}
}
static void
get_visual_attribs(Display *dpy, XVisualInfo *vInfo,
struct visual_attribs *attribs)
{
const char *ext = glXQueryExtensionsString(dpy, vInfo->screen);
memset(attribs, 0, sizeof(struct visual_attribs));
attribs->id = vInfo->visualid;
#if defined(__cplusplus) || defined(c_plusplus)
attribs->klass = vInfo->c_class;
#else
attribs->klass = vInfo->class;
#endif
attribs->depth = vInfo->depth;
attribs->redMask = vInfo->red_mask;
attribs->greenMask = vInfo->green_mask;
attribs->blueMask = vInfo->blue_mask;
attribs->colormapSize = vInfo->colormap_size;
attribs->bitsPerRGB = vInfo->bits_per_rgb;
if (glXGetConfig(dpy, vInfo, GLX_USE_GL, &attribs->supportsGL) != 0)
return;
glXGetConfig(dpy, vInfo, GLX_BUFFER_SIZE, &attribs->bufferSize);
glXGetConfig(dpy, vInfo, GLX_LEVEL, &attribs->level);
glXGetConfig(dpy, vInfo, GLX_RGBA, &attribs->rgba);
glXGetConfig(dpy, vInfo, GLX_DOUBLEBUFFER, &attribs->doubleBuffer);
glXGetConfig(dpy, vInfo, GLX_STEREO, &attribs->stereo);
glXGetConfig(dpy, vInfo, GLX_AUX_BUFFERS, &attribs->auxBuffers);
glXGetConfig(dpy, vInfo, GLX_RED_SIZE, &attribs->redSize);
glXGetConfig(dpy, vInfo, GLX_GREEN_SIZE, &attribs->greenSize);
glXGetConfig(dpy, vInfo, GLX_BLUE_SIZE, &attribs->blueSize);
glXGetConfig(dpy, vInfo, GLX_ALPHA_SIZE, &attribs->alphaSize);
glXGetConfig(dpy, vInfo, GLX_DEPTH_SIZE, &attribs->depthSize);
glXGetConfig(dpy, vInfo, GLX_STENCIL_SIZE, &attribs->stencilSize);
glXGetConfig(dpy, vInfo, GLX_ACCUM_RED_SIZE, &attribs->accumRedSize);
glXGetConfig(dpy, vInfo, GLX_ACCUM_GREEN_SIZE, &attribs->accumGreenSize);
glXGetConfig(dpy, vInfo, GLX_ACCUM_BLUE_SIZE, &attribs->accumBlueSize);
glXGetConfig(dpy, vInfo, GLX_ACCUM_ALPHA_SIZE, &attribs->accumAlphaSize);
/* transparent pixel value not implemented yet */
attribs->transparent = 0;
/* multisample tests not implemented yet */
attribs->numSamples = 0;
attribs->numMultisample = 0;
#if defined(GLX_EXT_visual_rating)
if (ext && strstr(ext, "GLX_EXT_visual_rating")) {
glXGetConfig(dpy, vInfo, GLX_VISUAL_CAVEAT_EXT, &attribs->visualCaveat);
}
else {
attribs->visualCaveat = GLX_NONE_EXT;
}
#else
attribs->visualCaveat = 0;
#endif
}
static void
print_visual_attribs_verbose(const struct visual_attribs *attribs)
{
printf("Visual ID: %x depth=%d class=%s\n",
attribs->id, attribs->depth, visual_class_name(attribs->klass));
printf(" bufferSize=%d level=%d renderType=%s doubleBuffer=%d stereo=%d\n",
attribs->bufferSize, attribs->level, attribs->rgba ? "rgba" : "ci",
attribs->doubleBuffer, attribs->stereo);
printf(" rgba: redSize=%d greenSize=%d blueSize=%d alphaSize=%d\n",
attribs->redSize, attribs->greenSize,
attribs->blueSize, attribs->alphaSize);
printf(" auxBuffers=%d depthSize=%d stencilSize=%d\n",
attribs->auxBuffers, attribs->depthSize, attribs->stencilSize);
printf(" accum: redSize=%d greenSize=%d blueSize=%d alphaSize=%d\n",
attribs->accumRedSize, attribs->accumGreenSize,
attribs->accumBlueSize, attribs->accumAlphaSize);
printf(" multiSample=%d multiSampleBuffers=%d\n",
attribs->numSamples, attribs->numMultisample);
#ifdef GLX_EXT_visual_rating
if (attribs->visualCaveat == GLX_NONE_EXT || attribs->visualCaveat == 0)
printf(" visualCaveat=None\n");
else if (attribs->visualCaveat == GLX_SLOW_VISUAL_EXT)
printf(" visualCaveat=Slow\n");
else if (attribs->visualCaveat == GLX_NON_CONFORMANT_VISUAL_EXT)
printf(" visualCaveat=Nonconformant\n");
#endif
printf(" %s\n", attribs->transparent ? "Transparent." : "Opaque.");
}
static void
print_visual_attribs_short_header(void)
{
printf(" visual x bf lv rg d st colorbuffer ax dp st accumbuffer ms cav\n");
printf(" id dep cl sp sz l ci b ro r g b a bf th cl r g b a ns b eat\n");
printf("----------------------------------------------------------------------\n");
}
static void
print_visual_attribs_short(const struct visual_attribs *attribs)
{
char *caveat;
#ifdef GLX_EXT_visual_rating
if (attribs->visualCaveat == GLX_NONE_EXT || attribs->visualCaveat == 0)
caveat = "None";
else if (attribs->visualCaveat == GLX_SLOW_VISUAL_EXT)
caveat = "Slow";
else if (attribs->visualCaveat == GLX_NON_CONFORMANT_VISUAL_EXT)
caveat = "Ncon";
#else
caveat = "None";
#endif
printf("0x%2x %2d %2s %2d %2d %2d %1s %2s %2s %2d %2d %2d %2d %2d %2d %2d",
attribs->id,
attribs->depth,
visual_class_abbrev(attribs->klass),
attribs->transparent,
attribs->bufferSize,
attribs->level,
attribs->rgba ? "r" : "c",
attribs->doubleBuffer ? "y" : ".",
attribs->stereo ? "y" : ".",
attribs->redSize, attribs->greenSize,
attribs->blueSize, attribs->alphaSize,
attribs->auxBuffers,
attribs->depthSize,
attribs->stencilSize
);
printf(" %2d %2d %2d %2d %2d %1d %s\n",
attribs->accumRedSize, attribs->accumGreenSize,
attribs->accumBlueSize, attribs->accumAlphaSize,
attribs->numSamples, attribs->numMultisample,
caveat
);
}
static void
print_visual_attribs_long_header(void)
{
printf("Vis Vis Visual Trans buff lev render DB ste r g b a aux dep ste accum buffers MS MS\n");
printf(" ID Depth Type parent size el type reo sz sz sz sz buf th ncl r g b a num bufs\n");
printf("----------------------------------------------------------------------------------------------------\n");
}
static void
print_visual_attribs_long(const struct visual_attribs *attribs)
{
printf("0x%2x %2d %-11s %2d %2d %2d %4s %3d %3d %3d %3d %3d %3d",
attribs->id,
attribs->depth,
visual_class_name(attribs->klass),
attribs->transparent,
attribs->bufferSize,
attribs->level,
attribs->rgba ? "rgba" : "ci ",
attribs->doubleBuffer,
attribs->stereo,
attribs->redSize, attribs->greenSize,
attribs->blueSize, attribs->alphaSize
);
printf(" %3d %4d %2d %3d %3d %3d %3d %2d %2d\n",
attribs->auxBuffers,
attribs->depthSize,
attribs->stencilSize,
attribs->accumRedSize, attribs->accumGreenSize,
attribs->accumBlueSize, attribs->accumAlphaSize,
attribs->numSamples, attribs->numMultisample
);
}
static void
print_visual_info(Display *dpy, int scrnum, InfoMode mode)
{
XVisualInfo template;
XVisualInfo *visuals;
int numVisuals;
long mask;
int i;
/* get list of all visuals on this screen */
template.screen = scrnum;
mask = VisualScreenMask;
visuals = XGetVisualInfo(dpy, mask, &template, &numVisuals);
if (mode == Verbose) {
for (i = 0; i < numVisuals; i++) {
struct visual_attribs attribs;
get_visual_attribs(dpy, &visuals[i], &attribs);
print_visual_attribs_verbose(&attribs);
}
}
else if (mode == Normal) {
print_visual_attribs_short_header();
for (i = 0; i < numVisuals; i++) {
struct visual_attribs attribs;
get_visual_attribs(dpy, &visuals[i], &attribs);
print_visual_attribs_short(&attribs);
}
}
else if (mode == Wide) {
print_visual_attribs_long_header();
for (i = 0; i < numVisuals; i++) {
struct visual_attribs attribs;
get_visual_attribs(dpy, &visuals[i], &attribs);
print_visual_attribs_long(&attribs);
}
}
XFree(visuals);
}
int
main(int argc, char *argv[])
{
char *displayName = ":0";
Display *dpy;
int numScreens, scrnum;
InfoMode mode = Normal;
int i;
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-display") == 0 && i + 1 < argc) {
displayName = argv[i + 1];
i++;
}
else if (strcmp(argv[i], "-t") == 0) {
mode = Wide;
}
else if (strcmp(argv[i], "-v") == 0) {
mode = Verbose;
}
}
dpy = XOpenDisplay(displayName);
if (!dpy) {
fprintf(stderr, "Error: unable to open display %s\n", displayName);
return -1;
}
numScreens = ScreenCount(dpy);
for (scrnum = 0; scrnum < numScreens; scrnum++) {
print_screen_info(dpy, scrnum);
printf("\n");
print_visual_info(dpy, scrnum, mode);
if (scrnum + 1 < numScreens)
printf("\n\n");
}
XCloseDisplay(dpy);
return 0;
}