/*
* Copyright (C) 1999-2006 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
* -B brief, print only the basics
* -b only print ID of "best" visual on screen 0
* -i use indirect rendering connection only
* -l print interesting OpenGL limits (added 5 Sep 2002)
*
* Brian Paul 26 January 2000
*/
#define GLX_GLXEXT_PROTOTYPES
#define GL_GLEXT_PROTOTYPES
#include <assert.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <GL/gl.h>
#include <GL/glx.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "glinfo_common.h"
#ifndef GLX_NONE_EXT
#define GLX_NONE_EXT 0x8000
#endif
#ifndef GLX_TRANSPARENT_RGB
#define GLX_TRANSPARENT_RGB 0x8008
#endif
#ifndef GLX_RGBA_BIT
#define GLX_RGBA_BIT 0x00000001
#endif
#ifndef GLX_COLOR_INDEX_BIT
#define GLX_COLOR_INDEX_BIT 0x00000002
#endif
struct visual_attribs
{
/* X visual attribs */
int id; /* May be visual ID or FBConfig ID */
int vis_id; /* Visual ID. Only set for FBConfigs */
int klass;
int depth;
int redMask, greenMask, blueMask;
int colormapSize;
int bitsPerRGB;
/* GL visual attribs */
int supportsGL;
int drawableType;
int transparentType;
int transparentRedValue;
int transparentGreenValue;
int transparentBlueValue;
int transparentAlphaValue;
int transparentIndexValue;
int bufferSize;
int level;
int render_type;
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;
int floatComponents;
int packedfloatComponents;
int srgb;
};
/**
* Version of the context that was created
*
* 20, 21, 30, 31, 32, etc.
*/
static int version;
/**
* GL Error checking/warning.
*/
static void
CheckError(int line)
{
int n;
n = glGetError();
if (n)
printf("Warning: GL error 0x%x at line %d\n", n, line);
}
static void
print_display_info(Display *dpy)
{
printf("name of display: %s\n", DisplayString(dpy));
}
/**
* Choose a simple FB Config.
*/
static GLXFBConfig *
choose_fb_config(Display *dpy, int scrnum)
{
int fbAttribSingle[] = {
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER, False,
None };
int fbAttribDouble[] = {
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER, True,
None };
GLXFBConfig *configs;
int nConfigs;
configs = glXChooseFBConfig(dpy, scrnum, fbAttribSingle, &nConfigs);
if (!configs)
configs = glXChooseFBConfig(dpy, scrnum, fbAttribDouble, &nConfigs);
return configs;
}
static Bool CreateContextErrorFlag;
static int
create_context_error_handler(Display *dpy, XErrorEvent *error)
{
(void) dpy;
(void) error->error_code;
CreateContextErrorFlag = True;
return 0;
}
/**
* Try to create a GLX context of the given version with flags/options.
* Note: A version number is required in order to get a core profile
* (at least w/ NVIDIA).
*/
static GLXContext
create_context_flags(Display *dpy, GLXFBConfig fbconfig, int major, int minor,
int contextFlags, int profileMask, Bool direct)
{
#ifdef GLX_ARB_create_context
static PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribsARB_func = 0;
static Bool firstCall = True;
int (*old_handler)(Display *, XErrorEvent *);
GLXContext context;
int attribs[20];
int n = 0;
if (firstCall) {
/* See if we have GLX_ARB_create_context_profile and get pointer to
* glXCreateContextAttribsARB() function.
*/
const char *glxExt = glXQueryExtensionsString(dpy, 0);
if (extension_supported("GLX_ARB_create_context_profile", glxExt)) {
glXCreateContextAttribsARB_func = (PFNGLXCREATECONTEXTATTRIBSARBPROC)
glXGetProcAddress((const GLubyte *) "glXCreateContextAttribsARB");
}
firstCall = False;
}
if (!glXCreateContextAttribsARB_func)
return 0;
/* setup attribute array */
if (major) {
attribs[n++] = GLX_CONTEXT_MAJOR_VERSION_ARB;
attribs[n++] = major;
attribs[n++] = GLX_CONTEXT_MINOR_VERSION_ARB;
attribs[n++] = minor;
}
if (contextFlags) {
attribs[n++] = GLX_CONTEXT_FLAGS_ARB;
attribs[n++] = contextFlags;
}
#ifdef GLX_ARB_create_context_profile
if (profileMask) {
attribs[n++] = GLX_CONTEXT_PROFILE_MASK_ARB;
attribs[n++] = profileMask;
}
#endif
attribs[n++] = 0;
/* install X error handler */
old_handler = XSetErrorHandler(create_context_error_handler);
CreateContextErrorFlag = False;
/* try creating context */
context = glXCreateContextAttribsARB_func(dpy,
fbconfig,
0, /* share_context */
direct,
attribs);
/* restore error handler */
XSetErrorHandler(old_handler);
if (CreateContextErrorFlag)
context = 0;
if (context && direct) {
if (!glXIsDirect(dpy, context)) {
glXDestroyContext(dpy, context);
return 0;
}
}
return context;
#else
return 0;
#endif
}
/**
* Try to create a GLX context of the newest version.
*/
static GLXContext
create_context_with_config(Display *dpy, GLXFBConfig config,
Bool coreProfile, Bool es2Profile, Bool direct)
{
GLXContext ctx = 0;
if (coreProfile) {
/* Try to create a core profile, starting with the newest version of
* GL that we're aware of. If we don't specify the version
*/
int i;
for (i = 0; gl_versions[i].major > 0; i++) {
/* don't bother below GL 3.0 */
if (gl_versions[i].major == 3 &&
gl_versions[i].minor == 0)
return 0;
ctx = create_context_flags(dpy, config,
gl_versions[i].major,
gl_versions[i].minor,
0x0,
GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
direct);
if (ctx)
return ctx;
}
/* couldn't get core profile context */
return 0;
}
if (es2Profile) {
#ifdef GLX_CONTEXT_ES2_PROFILE_BIT_EXT
if (extension_supported("GLX_EXT_create_context_es2_profile",
glXQueryExtensionsString(dpy, 0))) {
ctx = create_context_flags(dpy, config, 2, 0, 0x0,
GLX_CONTEXT_ES2_PROFILE_BIT_EXT,
direct);
return ctx;
}
#endif
return 0;
}
/* GLX should return a context of the latest GL version that supports
* the full profile.
*/
ctx = glXCreateNewContext(dpy, config, GLX_RGBA_TYPE, NULL, direct);
/* make sure the context is direct, if direct was requested */
if (ctx && direct) {
if (!glXIsDirect(dpy, ctx)) {
glXDestroyContext(dpy, ctx);
return 0;
}
}
return ctx;
}
static XVisualInfo *
choose_xvisinfo(Display *dpy, int scrnum)
{
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 };
XVisualInfo *visinfo;
visinfo = glXChooseVisual(dpy, scrnum, attribSingle);
if (!visinfo)
visinfo = glXChooseVisual(dpy, scrnum, attribDouble);
return visinfo;
}
static void
query_renderer(void)
{
#ifdef GLX_MESA_query_renderer
PFNGLXQUERYCURRENTRENDERERINTEGERMESAPROC queryInteger;
PFNGLXQUERYCURRENTRENDERERSTRINGMESAPROC queryString;
unsigned int v[3];
queryInteger = (PFNGLXQUERYCURRENTRENDERERINTEGERMESAPROC)
glXGetProcAddressARB((const GLubyte *)
"glXQueryCurrentRendererIntegerMESA");
queryString = (PFNGLXQUERYCURRENTRENDERERSTRINGMESAPROC)
glXGetProcAddressARB((const GLubyte *)
"glXQueryCurrentRendererStringMESA");
printf("Extended renderer info (GLX_MESA_query_renderer):\n");
queryInteger(GLX_RENDERER_VENDOR_ID_MESA, v);
printf(" Vendor: %s (0x%x)\n",
queryString(GLX_RENDERER_VENDOR_ID_MESA), *v);
queryInteger(GLX_RENDERER_DEVICE_ID_MESA, v);
printf(" Device: %s (0x%x)\n",
queryString(GLX_RENDERER_DEVICE_ID_MESA), *v);
queryInteger(GLX_RENDERER_VERSION_MESA, v);
printf(" Version: %d.%d.%d\n", v[0], v[1], v[2]);
queryInteger(GLX_RENDERER_ACCELERATED_MESA, v);
printf(" Accelerated: %s\n", *v ? "yes" : "no");
queryInteger(GLX_RENDERER_VIDEO_MEMORY_MESA, v);
printf(" Video memory: %dMB\n", *v);
queryInteger(GLX_RENDERER_UNIFIED_MEMORY_ARCHITECTURE_MESA, v);
printf(" Unified memory: %s\n", *v ? "yes" : "no");
queryInteger(GLX_RENDERER_PREFERRED_PROFILE_MESA, v);
printf(" Preferred profile: %s (0x%x)\n",
*v == GLX_CONTEXT_CORE_PROFILE_BIT_ARB ? "core" :
*v == GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB ? "compat" :
"unknown", *v);
queryInteger(GLX_RENDERER_OPENGL_CORE_PROFILE_VERSION_MESA, v);
printf(" Max core profile version: %d.%d\n", v[0], v[1]);
queryInteger(GLX_RENDERER_OPENGL_COMPATIBILITY_PROFILE_VERSION_MESA, v);
printf(" Max compat profile version: %d.%d\n", v[0], v[1]);
queryInteger(GLX_RENDERER_OPENGL_ES_PROFILE_VERSION_MESA, v);
printf(" Max GLES1 profile version: %d.%d\n", v[0], v[1]);
queryInteger(GLX_RENDERER_OPENGL_ES2_PROFILE_VERSION_MESA, v);
printf(" Max GLES[23] profile version: %d.%d\n", v[0], v[1]);
#endif
}
static Bool
print_screen_info(Display *dpy, int scrnum,
const struct options *opts,
Bool coreProfile, Bool es2Profile, Bool limits,
Bool coreWorked)
{
Window win;
XSetWindowAttributes attr;
unsigned long mask;
Window root;
GLXContext ctx = NULL;
XVisualInfo *visinfo;
int width = 100, height = 100;
GLXFBConfig *fbconfigs;
const char *oglstring = coreProfile ? "OpenGL core profile" :
es2Profile ? "OpenGL ES profile" : "OpenGL";
root = RootWindow(dpy, scrnum);
/*
* Choose FBConfig or XVisualInfo and create a context.
*/
fbconfigs = choose_fb_config(dpy, scrnum);
if (fbconfigs) {
ctx = create_context_with_config(dpy, fbconfigs[0],
coreProfile, es2Profile,
opts->allowDirect);
if (!ctx && opts->allowDirect && !coreProfile) {
/* try indirect */
ctx = create_context_with_config(dpy, fbconfigs[0],
coreProfile, es2Profile, False);
}
visinfo = glXGetVisualFromFBConfig(dpy, fbconfigs[0]);
XFree(fbconfigs);
}
else if (!coreProfile && !es2Profile) {
visinfo = choose_xvisinfo(dpy, scrnum);
if (visinfo)
ctx = glXCreateContext(dpy, visinfo, NULL, opts->allowDirect);
} else
visinfo = NULL;
if (!visinfo && !coreProfile && !es2Profile) {
fprintf(stderr, "Error: couldn't find RGB GLX visual or fbconfig\n");
return False;
}
if (!ctx) {
if (!coreProfile && !es2Profile)
fprintf(stderr, "Error: glXCreateContext failed\n");
XFree(visinfo);
return False;
}
/*
* Create a window so that we can just bind the context.
*/
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);
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);
char *glExtensions = NULL;
int glxVersionMajor = 0;
int glxVersionMinor = 0;
char *displayName = NULL;
char *colon = NULL, *period = NULL;
struct ext_functions extfuncs;
CheckError(__LINE__);
/* Get some ext functions */
extfuncs.GetProgramivARB = (GETPROGRAMIVARBPROC)
glXGetProcAddressARB((GLubyte *) "glGetProgramivARB");
extfuncs.GetStringi = (GETSTRINGIPROC)
glXGetProcAddressARB((GLubyte *) "glGetStringi");
extfuncs.GetConvolutionParameteriv = (GETCONVOLUTIONPARAMETERIVPROC)
glXGetProcAddressARB((GLubyte *) "glGetConvolutionParameteriv");
if (!glXQueryVersion(dpy, & glxVersionMajor, & glxVersionMinor)) {
fprintf(stderr, "Error: glXQueryVersion failed\n");
exit(1);
}
/* Get list of GL extensions */
if (coreProfile && extfuncs.GetStringi)
glExtensions = build_core_profile_extension_list(&extfuncs);
if (!glExtensions) {
coreProfile = False;
glExtensions = (char *) glGetString(GL_EXTENSIONS);
}
CheckError(__LINE__);
if (!coreWorked) {
/* Strip the screen number from the display name, if present. */
if (!(displayName = (char *) malloc(strlen(DisplayString(dpy)) + 1))) {
fprintf(stderr, "Error: malloc() failed\n");
exit(1);
}
strcpy(displayName, DisplayString(dpy));
colon = strrchr(displayName, ':');
if (colon) {
period = strchr(colon, '.');
if (period)
*period = '\0';
}
printf("display: %s screen: %d\n", displayName, scrnum);
free(displayName);
printf("direct rendering: ");
if (glXIsDirect(dpy, ctx)) {
printf("Yes\n");
}
else {
if (!opts->allowDirect) {
printf("No (-i specified)\n");
}
else if (getenv("LIBGL_ALWAYS_INDIRECT")) {
printf("No (LIBGL_ALWAYS_INDIRECT set)\n");
}
else {
printf("No (If you want to find out why, try setting "
"LIBGL_DEBUG=verbose)\n");
}
}
if (opts->mode != Brief) {
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, opts->singleLine);
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, opts->singleLine);
printf("GLX version: %u.%u\n", glxVersionMajor, glxVersionMinor);
printf("GLX extensions:\n");
print_extension_list(glxExtensions, opts->singleLine);
}
if (strstr(glxExtensions, "GLX_MESA_query_renderer"))
query_renderer();
print_gpu_memory_info(glExtensions);
printf("OpenGL vendor string: %s\n", glVendor);
printf("OpenGL renderer string: %s\n", glRenderer);
} else
printf("\n");
printf("%s version string: %s\n", oglstring, glVersion);
version = (glVersion[0] - '0') * 10 + (glVersion[2] - '0');
CheckError(__LINE__);
#ifdef GL_VERSION_2_0
if (version >= 20) {
char *v = (char *) glGetString(GL_SHADING_LANGUAGE_VERSION);
printf("%s shading language version string: %s\n", oglstring, v);
}
#endif
CheckError(__LINE__);
#ifdef GL_VERSION_3_0
if (version >= 30 && !es2Profile) {
GLint flags;
glGetIntegerv(GL_CONTEXT_FLAGS, &flags);
printf("%s context flags: %s\n", oglstring, context_flags_string(flags));
}
#endif
CheckError(__LINE__);
#ifdef GL_VERSION_3_2
if (version >= 32 && !es2Profile) {
GLint mask;
glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &mask);
printf("%s profile mask: %s\n", oglstring, profile_mask_string(mask));
}
#endif
CheckError(__LINE__);
if (opts->mode != Brief) {
printf("%s extensions:\n", oglstring);
print_extension_list(glExtensions, opts->singleLine);
}
if (limits) {
print_limits(glExtensions, oglstring, version, &extfuncs);
}
if (coreProfile)
free(glExtensions);
}
else {
fprintf(stderr, "Error: glXMakeCurrent failed\n");
}
glXDestroyContext(dpy, ctx);
XFree(visinfo);
XDestroyWindow(dpy, win);
XSync(dpy, 1);
return True;
}
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_drawable_type(int type)
{
const static struct bit_info bits[] = {
{ GLX_WINDOW_BIT, "window" },
{ GLX_PIXMAP_BIT, "pixmap" },
{ GLX_PBUFFER_BIT, "pbuffer" }
};
return bitmask_to_string(bits, ELEMENTS(bits), type);
}
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 const char *
visual_render_type_name(int type)
{
switch (type) {
case GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT:
return "ufloat";
case GLX_RGBA_FLOAT_BIT_ARB:
return "float";
case GLX_RGBA_BIT:
return "rgba";
case GLX_COLOR_INDEX_BIT:
return "ci";
case GLX_RGBA_BIT | GLX_COLOR_INDEX_BIT:
return "rgba|ci";
default:
return "";
}
}
static const char *
caveat_string(int caveat)
{
switch (caveat) {
#ifdef GLX_EXT_visual_rating
case GLX_SLOW_VISUAL_EXT:
return "Slow";
case GLX_NON_CONFORMANT_VISUAL_EXT:
return "Ncon";
case GLX_NONE_EXT:
/* fall-through */
#endif
case 0:
/* fall-through */
default:
return "None";
}
}
static Bool
get_visual_attribs(Display *dpy, XVisualInfo *vInfo,
struct visual_attribs *attribs)
{
const char *ext = glXQueryExtensionsString(dpy, vInfo->screen);
int rgba;
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 ||
!attribs->supportsGL)
return False;
glXGetConfig(dpy, vInfo, GLX_BUFFER_SIZE, &attribs->bufferSize);
glXGetConfig(dpy, vInfo, GLX_LEVEL, &attribs->level);
glXGetConfig(dpy, vInfo, GLX_RGBA, &rgba);
if (rgba)
attribs->render_type = GLX_RGBA_BIT;
else
attribs->render_type = GLX_COLOR_INDEX_BIT;
glXGetConfig(dpy, vInfo, GLX_DRAWABLE_TYPE, &attribs->drawableType);
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);
/* get transparent pixel stuff */
glXGetConfig(dpy, vInfo,GLX_TRANSPARENT_TYPE, &attribs->transparentType);
if (attribs->transparentType == GLX_TRANSPARENT_RGB) {
glXGetConfig(dpy, vInfo, GLX_TRANSPARENT_RED_VALUE, &attribs->transparentRedValue);
glXGetConfig(dpy, vInfo, GLX_TRANSPARENT_GREEN_VALUE, &attribs->transparentGreenValue);
glXGetConfig(dpy, vInfo, GLX_TRANSPARENT_BLUE_VALUE, &attribs->transparentBlueValue);
glXGetConfig(dpy, vInfo, GLX_TRANSPARENT_ALPHA_VALUE, &attribs->transparentAlphaValue);
}
else if (attribs->transparentType == GLX_TRANSPARENT_INDEX) {
glXGetConfig(dpy, vInfo, GLX_TRANSPARENT_INDEX_VALUE, &attribs->transparentIndexValue);
}
/* multisample attribs */
#ifdef GLX_ARB_multisample
if (ext && strstr(ext, "GLX_ARB_multisample")) {
glXGetConfig(dpy, vInfo, GLX_SAMPLE_BUFFERS_ARB, &attribs->numMultisample);
glXGetConfig(dpy, vInfo, GLX_SAMPLES_ARB, &attribs->numSamples);
}
#endif
else {
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
#if defined(GLX_EXT_framebuffer_sRGB)
if (ext && strstr(ext, "GLX_EXT_framebuffer_sRGB")) {
glXGetConfig(dpy, vInfo, GLX_FRAMEBUFFER_SRGB_CAPABLE_EXT, &attribs->srgb);
}
#endif
return True;
}
#ifdef GLX_VERSION_1_3
static int
glx_token_to_visual_class(int visual_type)
{
switch (visual_type) {
case GLX_TRUE_COLOR:
return TrueColor;
case GLX_DIRECT_COLOR:
return DirectColor;
case GLX_PSEUDO_COLOR:
return PseudoColor;
case GLX_STATIC_COLOR:
return StaticColor;
case GLX_GRAY_SCALE:
return GrayScale;
case GLX_STATIC_GRAY:
return StaticGray;
case GLX_NONE:
default:
return None;
}
}
static Bool
get_fbconfig_attribs(Display *dpy, GLXFBConfig fbconfig,
struct visual_attribs *attribs)
{
const char *ext = glXQueryExtensionsString(dpy, 0);
int visual_type;
XVisualInfo *vInfo;
memset(attribs, 0, sizeof(struct visual_attribs));
glXGetFBConfigAttrib(dpy, fbconfig, GLX_FBCONFIG_ID, &attribs->id);
vInfo = glXGetVisualFromFBConfig(dpy, fbconfig);
if (vInfo != NULL) {
attribs->vis_id = vInfo->visualid;
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;
}
glXGetFBConfigAttrib(dpy, fbconfig, GLX_X_VISUAL_TYPE, &visual_type);
attribs->klass = glx_token_to_visual_class(visual_type);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_DRAWABLE_TYPE, &attribs->drawableType);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_BUFFER_SIZE, &attribs->bufferSize);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_LEVEL, &attribs->level);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_RENDER_TYPE, &attribs->render_type);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_DOUBLEBUFFER, &attribs->doubleBuffer);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_STEREO, &attribs->stereo);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_AUX_BUFFERS, &attribs->auxBuffers);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_RED_SIZE, &attribs->redSize);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_GREEN_SIZE, &attribs->greenSize);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_BLUE_SIZE, &attribs->blueSize);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_ALPHA_SIZE, &attribs->alphaSize);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_DEPTH_SIZE, &attribs->depthSize);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_STENCIL_SIZE, &attribs->stencilSize);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_ACCUM_RED_SIZE, &attribs->accumRedSize);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_ACCUM_GREEN_SIZE, &attribs->accumGreenSize);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_ACCUM_BLUE_SIZE, &attribs->accumBlueSize);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_ACCUM_ALPHA_SIZE, &attribs->accumAlphaSize);
/* get transparent pixel stuff */
glXGetFBConfigAttrib(dpy, fbconfig,GLX_TRANSPARENT_TYPE, &attribs->transparentType);
if (attribs->transparentType == GLX_TRANSPARENT_RGB) {
glXGetFBConfigAttrib(dpy, fbconfig, GLX_TRANSPARENT_RED_VALUE, &attribs->transparentRedValue);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_TRANSPARENT_GREEN_VALUE, &attribs->transparentGreenValue);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_TRANSPARENT_BLUE_VALUE, &attribs->transparentBlueValue);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_TRANSPARENT_ALPHA_VALUE, &attribs->transparentAlphaValue);
}
else if (attribs->transparentType == GLX_TRANSPARENT_INDEX) {
glXGetFBConfigAttrib(dpy, fbconfig, GLX_TRANSPARENT_INDEX_VALUE, &attribs->transparentIndexValue);
}
glXGetFBConfigAttrib(dpy, fbconfig, GLX_SAMPLE_BUFFERS, &attribs->numMultisample);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_SAMPLES, &attribs->numSamples);
glXGetFBConfigAttrib(dpy, fbconfig, GLX_CONFIG_CAVEAT, &attribs->visualCaveat);
#if defined(GLX_NV_float_buffer)
if (ext && strstr(ext, "GLX_NV_float_buffer")) {
glXGetFBConfigAttrib(dpy, fbconfig, GLX_FLOAT_COMPONENTS_NV, &attribs->floatComponents);
}
#endif
#if defined(GLX_ARB_fbconfig_float)
if (ext && strstr(ext, "GLX_ARB_fbconfig_float")) {
if (attribs->render_type & GLX_RGBA_FLOAT_BIT_ARB) {
attribs->floatComponents = True;
}
}
#endif
#if defined(GLX_EXT_fbconfig_packed_float)
if (ext && strstr(ext, "GLX_EXT_fbconfig_packed_float")) {
if (attribs->render_type & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT) {
attribs->packedfloatComponents = True;
}
}
#endif
#if defined(GLX_EXT_framebuffer_sRGB)
if (ext && strstr(ext, "GLX_EXT_framebuffer_sRGB")) {
glXGetFBConfigAttrib(dpy, fbconfig, GLX_FRAMEBUFFER_SRGB_CAPABLE_EXT, &attribs->srgb);
}
#endif
return True;
}
#endif
static void
print_visual_attribs_verbose(const struct visual_attribs *attribs,
int fbconfigs)
{
if (fbconfigs) {
printf("FBConfig ID: %x Visual ID=%x depth=%d class=%s, type=%s\n",
attribs->id, attribs->vis_id, attribs->depth,
visual_class_name(attribs->klass),
visual_drawable_type(attribs->drawableType));
}
else {
printf("Visual ID: %x depth=%d class=%s, type=%s\n",
attribs->id, attribs->depth, visual_class_name(attribs->klass),
visual_drawable_type(attribs->drawableType));
}
printf(" bufferSize=%d level=%d renderType=%s doubleBuffer=%d stereo=%d\n",
attribs->bufferSize, attribs->level,
visual_render_type_name(attribs->render_type),
attribs->doubleBuffer, attribs->stereo);
printf(" rgba: redSize=%d greenSize=%d blueSize=%d alphaSize=%d float=%c sRGB=%c\n",
attribs->redSize, attribs->greenSize,
attribs->blueSize, attribs->alphaSize,
attribs->packedfloatComponents ? 'P' : attribs->floatComponents ? 'Y' : 'N',
attribs->srgb ? 'Y' : 'N');
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
if (attribs->transparentType == GLX_NONE) {
printf(" Opaque.\n");
}
else if (attribs->transparentType == GLX_TRANSPARENT_RGB) {
printf(" Transparent RGB: Red=%d Green=%d Blue=%d Alpha=%d\n",attribs->transparentRedValue,attribs->transparentGreenValue,attribs->transparentBlueValue,attribs->transparentAlphaValue);
}
else if (attribs->transparentType == GLX_TRANSPARENT_INDEX) {
printf(" Transparent index=%d\n",attribs->transparentIndexValue);
}
}
static void
print_visual_attribs_short_header(void)
{
printf(" visual x bf lv rg d st colorbuffer sr ax dp st accumbuffer ms cav\n");
printf(" id dep cl sp sz l ci b ro r g b a F gb bf th cl r g b a ns b eat\n");
printf("----------------------------------------------------------------------------\n");
}
static void
print_visual_attribs_short(const struct visual_attribs *attribs)
{
const char *caveat = caveat_string(attribs->visualCaveat);
printf("0x%03x %2d %2s %2d %3d %2d %c%c %c %c %2d %2d %2d %2d %c %c %2d %2d %2d",
attribs->id,
attribs->depth,
visual_class_abbrev(attribs->klass),
attribs->transparentType != GLX_NONE,
attribs->bufferSize,
attribs->level,
(attribs->render_type & GLX_RGBA_BIT) ? 'r' : ' ',
(attribs->render_type & GLX_COLOR_INDEX_BIT) ? 'c' : ' ',
attribs->doubleBuffer ? 'y' : '.',
attribs->stereo ? 'y' : '.',
attribs->redSize, attribs->greenSize,
attribs->blueSize, attribs->alphaSize,
attribs->packedfloatComponents ? 'u' : attribs->floatComponents ? 'f' : '.',
attribs->srgb ? 's' : '.',
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 s aux dep ste accum buffer MS MS \n");
printf(" ID Depth Type parent size el type reo sz sz sz sz flt rgb buf th ncl r g b a num bufs caveats\n");
printf("--------------------------------------------------------------------------------------------------------------------\n");
}
static void
print_visual_attribs_long(const struct visual_attribs *attribs)
{
const char *caveat = caveat_string(attribs->visualCaveat);
printf("0x%3x %2d %-11s %2d %3d %2d %4s %3d %3d %3d %3d %3d %3d",
attribs->id,
attribs->depth,
visual_class_name(attribs->klass),
attribs->transparentType != GLX_NONE,
attribs->bufferSize,
attribs->level,
visual_render_type_name(attribs->render_type),
attribs->doubleBuffer,
attribs->stereo,
attribs->redSize, attribs->greenSize,
attribs->blueSize, attribs->alphaSize
);
printf(" %c %c %3d %4d %2d %3d %3d %3d %3d %2d %2d %6s\n",
attribs->floatComponents ? 'f' : '.',
attribs->srgb ? 's' : '.',
attribs->auxBuffers,
attribs->depthSize,
attribs->stencilSize,
attribs->accumRedSize, attribs->accumGreenSize,
attribs->accumBlueSize, attribs->accumAlphaSize,
attribs->numSamples, attribs->numMultisample,
caveat
);
}
static void
print_visual_info(Display *dpy, int scrnum, InfoMode mode)
{
XVisualInfo theTemplate;
XVisualInfo *visuals;
int numVisuals, numGlxVisuals;
long mask;
int i;
struct visual_attribs attribs;
/* get list of all visuals on this screen */
theTemplate.screen = scrnum;
mask = VisualScreenMask;
visuals = XGetVisualInfo(dpy, mask, &theTemplate, &numVisuals);
numGlxVisuals = 0;
for (i = 0; i < numVisuals; i++) {
if (get_visual_attribs(dpy, &visuals[i], &attribs))
numGlxVisuals++;
}
if (numGlxVisuals == 0)
return;
printf("%d GLX Visuals\n", numGlxVisuals);
if (mode == Normal)
print_visual_attribs_short_header();
else if (mode == Wide)
print_visual_attribs_long_header();
for (i = 0; i < numVisuals; i++) {
if (!get_visual_attribs(dpy, &visuals[i], &attribs))
continue;
if (mode == Verbose)
print_visual_attribs_verbose(&attribs, False);
else if (mode == Normal)
print_visual_attribs_short(&attribs);
else if (mode == Wide)
print_visual_attribs_long(&attribs);
}
printf("\n");
XFree(visuals);
}
#ifdef GLX_VERSION_1_3
static void
print_fbconfig_info(Display *dpy, int scrnum, InfoMode mode)
{
int numFBConfigs = 0;
struct visual_attribs attribs;
GLXFBConfig *fbconfigs;
int i;
/* get list of all fbconfigs on this screen */
fbconfigs = glXGetFBConfigs(dpy, scrnum, &numFBConfigs);
if (numFBConfigs == 0) {
XFree(fbconfigs);
return;
}
printf("%d GLXFBConfigs:\n", numFBConfigs);
if (mode == Normal)
print_visual_attribs_short_header();
else if (mode == Wide)
print_visual_attribs_long_header();
for (i = 0; i < numFBConfigs; i++) {
get_fbconfig_attribs(dpy, fbconfigs[i], &attribs);
if (mode == Verbose)
print_visual_attribs_verbose(&attribs, True);
else if (mode == Normal)
print_visual_attribs_short(&attribs);
else if (mode == Wide)
print_visual_attribs_long(&attribs);
}
printf("\n");
XFree(fbconfigs);
}
#endif
/*
* Stand-alone Mesa doesn't really implement the GLX protocol so it
* doesn't really know the GLX attributes associated with an X visual.
* The first time a visual is presented to Mesa's pseudo-GLX it
* attaches ancilliary buffers to it (like depth and stencil).
* But that usually only works if glXChooseVisual is used.
* This function calls glXChooseVisual() to sort of "prime the pump"
* for Mesa's GLX so that the visuals that get reported actually
* reflect what applications will see.
* This has no effect when using true GLX.
*/
static void
mesa_hack(Display *dpy, int scrnum)
{
static int attribs[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DEPTH_SIZE, 1,
GLX_STENCIL_SIZE, 1,
GLX_ACCUM_RED_SIZE, 1,
GLX_ACCUM_GREEN_SIZE, 1,
GLX_ACCUM_BLUE_SIZE, 1,
GLX_ACCUM_ALPHA_SIZE, 1,
GLX_DOUBLEBUFFER,
None
};
XVisualInfo *visinfo;
visinfo = glXChooseVisual(dpy, scrnum, attribs);
if (visinfo)
XFree(visinfo);
}
/*
* Examine all visuals to find the so-called best one.
* We prefer deepest RGBA buffer with depth, stencil and accum
* that has no caveats.
*/
static int
find_best_visual(Display *dpy, int scrnum)
{
XVisualInfo theTemplate;
XVisualInfo *visuals;
int numVisuals;
long mask;
int i;
struct visual_attribs bestVis;
/* get list of all visuals on this screen */
theTemplate.screen = scrnum;
mask = VisualScreenMask;
visuals = XGetVisualInfo(dpy, mask, &theTemplate, &numVisuals);
/* init bestVis with first visual info */
get_visual_attribs(dpy, &visuals[0], &bestVis);
/* try to find a "better" visual */
for (i = 1; i < numVisuals; i++) {
struct visual_attribs vis;
get_visual_attribs(dpy, &visuals[i], &vis);
/* always skip visuals with caveats */
if (vis.visualCaveat != GLX_NONE_EXT)
continue;
/* see if this vis is better than bestVis */
if ((!bestVis.supportsGL && vis.supportsGL) ||
(bestVis.visualCaveat != GLX_NONE_EXT) ||
(!(bestVis.render_type & GLX_RGBA_BIT) && (vis.render_type & GLX_RGBA_BIT)) ||
(!bestVis.doubleBuffer && vis.doubleBuffer) ||
(bestVis.redSize < vis.redSize) ||
(bestVis.greenSize < vis.greenSize) ||
(bestVis.blueSize < vis.blueSize) ||
(bestVis.alphaSize < vis.alphaSize) ||
(bestVis.depthSize < vis.depthSize) ||
(bestVis.stencilSize < vis.stencilSize) ||
(bestVis.accumRedSize < vis.accumRedSize)) {
/* found a better visual */
bestVis = vis;
}
}
XFree(visuals);
return bestVis.id;
}
int
main(int argc, char *argv[])
{
Display *dpy;
int numScreens, scrnum;
struct options opts;
Bool coreWorked;
parse_args(argc, argv, &opts);
dpy = XOpenDisplay(opts.displayName);
if (!dpy) {
fprintf(stderr, "Error: unable to open display %s\n",
XDisplayName(opts.displayName));
return -1;
}
if (opts.findBest) {
int b;
mesa_hack(dpy, 0);
b = find_best_visual(dpy, 0);
printf("%d\n", b);
}
else {
numScreens = ScreenCount(dpy);
print_display_info(dpy);
for (scrnum = 0; scrnum < numScreens; scrnum++) {
mesa_hack(dpy, scrnum);
coreWorked = print_screen_info(dpy, scrnum, &opts,
True, False, opts.limits, False);
print_screen_info(dpy, scrnum, &opts, False, False,
opts.limits, coreWorked);
print_screen_info(dpy, scrnum, &opts, False, True, False, True);
printf("\n");
if (opts.mode != Brief) {
print_visual_info(dpy, scrnum, opts.mode);
#ifdef GLX_VERSION_1_3
print_fbconfig_info(dpy, scrnum, opts.mode);
#endif
}
if (scrnum + 1 < numScreens)
printf("\n\n");
}
}
XCloseDisplay(dpy);
return 0;
}