Submitted By: Armin K. Date: 2012-08-14 Initial Package Version: 8.0.4 Upstream Status: Not applicable Origin: Based on dj's original patch. Description: This patch adds two GL demos, glxinfo and glxgears. It is based on dj's original patch, with refreshed demos from upstream git repository, with fixed compiling when shared libglapi is present and fixed installation process that won't run install -c on DESTDIR/usr/bin if directory exists. --- Mesa.orig/Makefile 2012-07-10 17:12:50.000000000 +0200 +++ Mesa/Makefile 2012-08-14 14:57:46.490218691 +0200 @@ -2,7 +2,7 @@ TOP = . -SUBDIRS = src +SUBDIRS = src xdemos # The git command below generates an empty string when we're not --- Mesa.orig/xdemos/glxgears.c 1970-01-01 01:00:00.000000000 +0100 +++ Mesa/xdemos/glxgears.c 2012-08-14 14:59:29.000000000 +0200 @@ -0,0 +1,804 @@ +/* + * Copyright (C) 1999-2001 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 is a port of the infamous "gears" demo to straight GLX (i.e. no GLUT) + * Port by Brian Paul 23 March 2001 + * + * See usage() below for command line options. + */ + + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifndef GLX_MESA_swap_control +#define GLX_MESA_swap_control 1 +typedef int (*PFNGLXGETSWAPINTERVALMESAPROC)(void); +#endif + + +#define BENCHMARK + +#ifdef BENCHMARK + +/* XXX this probably isn't very portable */ + +#include +#include + +/* return current time (in seconds) */ +static double +current_time(void) +{ + struct timeval tv; +#ifdef __VMS + (void) gettimeofday(&tv, NULL ); +#else + struct timezone tz; + (void) gettimeofday(&tv, &tz); +#endif + return (double) tv.tv_sec + tv.tv_usec / 1000000.0; +} + +#else /*BENCHMARK*/ + +/* dummy */ +static double +current_time(void) +{ + /* update this function for other platforms! */ + static double t = 0.0; + static int warn = 1; + if (warn) { + fprintf(stderr, "Warning: current_time() not implemented!!\n"); + warn = 0; + } + return t += 1.0; +} + +#endif /*BENCHMARK*/ + + + +#ifndef M_PI +#define M_PI 3.14159265 +#endif + + +/** Event handler results: */ +#define NOP 0 +#define EXIT 1 +#define DRAW 2 + +static GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0; +static GLint gear1, gear2, gear3; +static GLfloat angle = 0.0; + +static GLboolean fullscreen = GL_FALSE; /* Create a single fullscreen window */ +static GLboolean stereo = GL_FALSE; /* Enable stereo. */ +static GLint samples = 0; /* Choose visual with at least N samples. */ +static GLboolean animate = GL_TRUE; /* Animation */ +static GLfloat eyesep = 5.0; /* Eye separation. */ +static GLfloat fix_point = 40.0; /* Fixation point distance. */ +static GLfloat left, right, asp; /* Stereo frustum params. */ + + +/* + * + * Draw a gear wheel. You'll probably want to call this function when + * building a display list since we do a lot of trig here. + * + * Input: inner_radius - radius of hole at center + * outer_radius - radius at center of teeth + * width - width of gear + * teeth - number of teeth + * tooth_depth - depth of tooth + */ +static void +gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width, + GLint teeth, GLfloat tooth_depth) +{ + GLint i; + GLfloat r0, r1, r2; + GLfloat angle, da; + GLfloat u, v, len; + + r0 = inner_radius; + r1 = outer_radius - tooth_depth / 2.0; + r2 = outer_radius + tooth_depth / 2.0; + + da = 2.0 * M_PI / teeth / 4.0; + + glShadeModel(GL_FLAT); + + glNormal3f(0.0, 0.0, 1.0); + + /* draw front face */ + glBegin(GL_QUAD_STRIP); + for (i = 0; i <= teeth; i++) { + angle = i * 2.0 * M_PI / teeth; + glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5); + glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5); + if (i < teeth) { + glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5); + glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), + width * 0.5); + } + } + glEnd(); + + /* draw front sides of teeth */ + glBegin(GL_QUADS); + da = 2.0 * M_PI / teeth / 4.0; + for (i = 0; i < teeth; i++) { + angle = i * 2.0 * M_PI / teeth; + + glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5); + glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5); + glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), + width * 0.5); + glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), + width * 0.5); + } + glEnd(); + + glNormal3f(0.0, 0.0, -1.0); + + /* draw back face */ + glBegin(GL_QUAD_STRIP); + for (i = 0; i <= teeth; i++) { + angle = i * 2.0 * M_PI / teeth; + glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5); + glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5); + if (i < teeth) { + glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), + -width * 0.5); + glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5); + } + } + glEnd(); + + /* draw back sides of teeth */ + glBegin(GL_QUADS); + da = 2.0 * M_PI / teeth / 4.0; + for (i = 0; i < teeth; i++) { + angle = i * 2.0 * M_PI / teeth; + + glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), + -width * 0.5); + glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), + -width * 0.5); + glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5); + glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5); + } + glEnd(); + + /* draw outward faces of teeth */ + glBegin(GL_QUAD_STRIP); + for (i = 0; i < teeth; i++) { + angle = i * 2.0 * M_PI / teeth; + + glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5); + glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5); + u = r2 * cos(angle + da) - r1 * cos(angle); + v = r2 * sin(angle + da) - r1 * sin(angle); + len = sqrt(u * u + v * v); + u /= len; + v /= len; + glNormal3f(v, -u, 0.0); + glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5); + glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5); + glNormal3f(cos(angle), sin(angle), 0.0); + glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), + width * 0.5); + glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da), + -width * 0.5); + u = r1 * cos(angle + 3 * da) - r2 * cos(angle + 2 * da); + v = r1 * sin(angle + 3 * da) - r2 * sin(angle + 2 * da); + glNormal3f(v, -u, 0.0); + glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), + width * 0.5); + glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da), + -width * 0.5); + glNormal3f(cos(angle), sin(angle), 0.0); + } + + glVertex3f(r1 * cos(0), r1 * sin(0), width * 0.5); + glVertex3f(r1 * cos(0), r1 * sin(0), -width * 0.5); + + glEnd(); + + glShadeModel(GL_SMOOTH); + + /* draw inside radius cylinder */ + glBegin(GL_QUAD_STRIP); + for (i = 0; i <= teeth; i++) { + angle = i * 2.0 * M_PI / teeth; + glNormal3f(-cos(angle), -sin(angle), 0.0); + glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5); + glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5); + } + glEnd(); +} + + +static void +draw(void) +{ + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + glPushMatrix(); + glRotatef(view_rotx, 1.0, 0.0, 0.0); + glRotatef(view_roty, 0.0, 1.0, 0.0); + glRotatef(view_rotz, 0.0, 0.0, 1.0); + + glPushMatrix(); + glTranslatef(-3.0, -2.0, 0.0); + glRotatef(angle, 0.0, 0.0, 1.0); + glCallList(gear1); + glPopMatrix(); + + glPushMatrix(); + glTranslatef(3.1, -2.0, 0.0); + glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0); + glCallList(gear2); + glPopMatrix(); + + glPushMatrix(); + glTranslatef(-3.1, 4.2, 0.0); + glRotatef(-2.0 * angle - 25.0, 0.0, 0.0, 1.0); + glCallList(gear3); + glPopMatrix(); + + glPopMatrix(); +} + + +static void +draw_gears(void) +{ + if (stereo) { + /* First left eye. */ + glDrawBuffer(GL_BACK_LEFT); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustum(left, right, -asp, asp, 5.0, 60.0); + + glMatrixMode(GL_MODELVIEW); + + glPushMatrix(); + glTranslated(+0.5 * eyesep, 0.0, 0.0); + draw(); + glPopMatrix(); + + /* Then right eye. */ + glDrawBuffer(GL_BACK_RIGHT); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustum(-right, -left, -asp, asp, 5.0, 60.0); + + glMatrixMode(GL_MODELVIEW); + + glPushMatrix(); + glTranslated(-0.5 * eyesep, 0.0, 0.0); + draw(); + glPopMatrix(); + } + else { + draw(); + } +} + + +/** Draw single frame, do SwapBuffers, compute FPS */ +static void +draw_frame(Display *dpy, Window win) +{ + static int frames = 0; + static double tRot0 = -1.0, tRate0 = -1.0; + double dt, t = current_time(); + + if (tRot0 < 0.0) + tRot0 = t; + dt = t - tRot0; + tRot0 = t; + + if (animate) { + /* advance rotation for next frame */ + angle += 70.0 * dt; /* 70 degrees per second */ + if (angle > 3600.0) + angle -= 3600.0; + } + + draw_gears(); + glXSwapBuffers(dpy, win); + + frames++; + + if (tRate0 < 0.0) + tRate0 = t; + if (t - tRate0 >= 5.0) { + GLfloat seconds = t - tRate0; + GLfloat fps = frames / seconds; + printf("%d frames in %3.1f seconds = %6.3f FPS\n", frames, seconds, + fps); + fflush(stdout); + tRate0 = t; + frames = 0; + } +} + + +/* new window size or exposure */ +static void +reshape(int width, int height) +{ + glViewport(0, 0, (GLint) width, (GLint) height); + + if (stereo) { + GLfloat w; + + asp = (GLfloat) height / (GLfloat) width; + w = fix_point * (1.0 / 5.0); + + left = -5.0 * ((w - 0.5 * eyesep) / fix_point); + right = 5.0 * ((w + 0.5 * eyesep) / fix_point); + } + else { + GLfloat h = (GLfloat) height / (GLfloat) width; + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glFrustum(-1.0, 1.0, -h, h, 5.0, 60.0); + } + + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glTranslatef(0.0, 0.0, -40.0); +} + + + +static void +init(void) +{ + static GLfloat pos[4] = { 5.0, 5.0, 10.0, 0.0 }; + static GLfloat red[4] = { 0.8, 0.1, 0.0, 1.0 }; + static GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 }; + static GLfloat blue[4] = { 0.2, 0.2, 1.0, 1.0 }; + + glLightfv(GL_LIGHT0, GL_POSITION, pos); + glEnable(GL_CULL_FACE); + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + glEnable(GL_DEPTH_TEST); + + /* make the gears */ + gear1 = glGenLists(1); + glNewList(gear1, GL_COMPILE); + glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red); + gear(1.0, 4.0, 1.0, 20, 0.7); + glEndList(); + + gear2 = glGenLists(1); + glNewList(gear2, GL_COMPILE); + glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green); + gear(0.5, 2.0, 2.0, 10, 0.7); + glEndList(); + + gear3 = glGenLists(1); + glNewList(gear3, GL_COMPILE); + glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue); + gear(1.3, 2.0, 0.5, 10, 0.7); + glEndList(); + + glEnable(GL_NORMALIZE); +} + + +/** + * Remove window border/decorations. + */ +static void +no_border( Display *dpy, Window w) +{ + static const unsigned MWM_HINTS_DECORATIONS = (1 << 1); + static const int PROP_MOTIF_WM_HINTS_ELEMENTS = 5; + + typedef struct + { + unsigned long flags; + unsigned long functions; + unsigned long decorations; + long inputMode; + unsigned long status; + } PropMotifWmHints; + + PropMotifWmHints motif_hints; + Atom prop, proptype; + unsigned long flags = 0; + + /* setup the property */ + motif_hints.flags = MWM_HINTS_DECORATIONS; + motif_hints.decorations = flags; + + /* get the atom for the property */ + prop = XInternAtom( dpy, "_MOTIF_WM_HINTS", True ); + if (!prop) { + /* something went wrong! */ + return; + } + + /* not sure this is correct, seems to work, XA_WM_HINTS didn't work */ + proptype = prop; + + XChangeProperty( dpy, w, /* display, window */ + prop, proptype, /* property, type */ + 32, /* format: 32-bit datums */ + PropModeReplace, /* mode */ + (unsigned char *) &motif_hints, /* data */ + PROP_MOTIF_WM_HINTS_ELEMENTS /* nelements */ + ); +} + + +/* + * Create an RGB, double-buffered window. + * Return the window and context handles. + */ +static void +make_window( Display *dpy, const char *name, + int x, int y, int width, int height, + Window *winRet, GLXContext *ctxRet) +{ + int attribs[64]; + int i = 0; + + int scrnum; + XSetWindowAttributes attr; + unsigned long mask; + Window root; + Window win; + GLXContext ctx; + XVisualInfo *visinfo; + + /* Singleton attributes. */ + attribs[i++] = GLX_RGBA; + attribs[i++] = GLX_DOUBLEBUFFER; + if (stereo) + attribs[i++] = GLX_STEREO; + + /* Key/value attributes. */ + attribs[i++] = GLX_RED_SIZE; + attribs[i++] = 1; + attribs[i++] = GLX_GREEN_SIZE; + attribs[i++] = 1; + attribs[i++] = GLX_BLUE_SIZE; + attribs[i++] = 1; + attribs[i++] = GLX_DEPTH_SIZE; + attribs[i++] = 1; + if (samples > 0) { + attribs[i++] = GLX_SAMPLE_BUFFERS; + attribs[i++] = 1; + attribs[i++] = GLX_SAMPLES; + attribs[i++] = samples; + } + + attribs[i++] = None; + + scrnum = DefaultScreen( dpy ); + root = RootWindow( dpy, scrnum ); + + if (fullscreen) { + x = 0; y = 0; + width = DisplayWidth( dpy, scrnum ); + height = DisplayHeight( dpy, scrnum ); + } + + visinfo = glXChooseVisual(dpy, scrnum, attribs); + if (!visinfo) { + printf("Error: couldn't get an RGB, Double-buffered"); + if (stereo) + printf(", Stereo"); + if (samples > 0) + printf(", Multisample"); + printf(" visual\n"); + exit(1); + } + + /* window attributes */ + attr.background_pixel = 0; + attr.border_pixel = 0; + attr.colormap = XCreateColormap( dpy, root, visinfo->visual, AllocNone); + attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask; + /* XXX this is a bad way to get a borderless window! */ + mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask; + + win = XCreateWindow( dpy, root, x, y, width, height, + 0, visinfo->depth, InputOutput, + visinfo->visual, mask, &attr ); + + if (fullscreen) + no_border(dpy, win); + + /* set hints and properties */ + { + XSizeHints sizehints; + sizehints.x = x; + sizehints.y = y; + sizehints.width = width; + sizehints.height = height; + sizehints.flags = USSize | USPosition; + XSetNormalHints(dpy, win, &sizehints); + XSetStandardProperties(dpy, win, name, name, + None, (char **)NULL, 0, &sizehints); + } + + ctx = glXCreateContext( dpy, visinfo, NULL, True ); + if (!ctx) { + printf("Error: glXCreateContext failed\n"); + exit(1); + } + + XFree(visinfo); + + *winRet = win; + *ctxRet = ctx; +} + + +/** + * Determine whether or not a GLX extension is supported. + */ +static int +is_glx_extension_supported(Display *dpy, const char *query) +{ + const int scrnum = DefaultScreen(dpy); + const char *glx_extensions = NULL; + const size_t len = strlen(query); + const char *ptr; + + if (glx_extensions == NULL) { + glx_extensions = glXQueryExtensionsString(dpy, scrnum); + } + + ptr = strstr(glx_extensions, query); + return ((ptr != NULL) && ((ptr[len] == ' ') || (ptr[len] == '\0'))); +} + + +/** + * Attempt to determine whether or not the display is synched to vblank. + */ +static void +query_vsync(Display *dpy, GLXDrawable drawable) +{ + int interval = 0; + +#if defined(GLX_EXT_swap_control) + if (is_glx_extension_supported(dpy, "GLX_EXT_swap_control")) { + unsigned int tmp = -1; + glXQueryDrawable(dpy, drawable, GLX_SWAP_INTERVAL_EXT, &tmp); + interval = tmp; + } else +#endif + if (is_glx_extension_supported(dpy, "GLX_MESA_swap_control")) { + PFNGLXGETSWAPINTERVALMESAPROC pglXGetSwapIntervalMESA = + (PFNGLXGETSWAPINTERVALMESAPROC) + glXGetProcAddressARB((const GLubyte *) "glXGetSwapIntervalMESA"); + + interval = (*pglXGetSwapIntervalMESA)(); + } else if (is_glx_extension_supported(dpy, "GLX_SGI_swap_control")) { + /* The default swap interval with this extension is 1. Assume that it + * is set to the default. + * + * Many Mesa-based drivers default to 0, but all of these drivers also + * export GLX_MESA_swap_control. In that case, this branch will never + * be taken, and the correct result should be reported. + */ + interval = 1; + } + + + if (interval > 0) { + printf("Running synchronized to the vertical refresh. The framerate should be\n"); + if (interval == 1) { + printf("approximately the same as the monitor refresh rate.\n"); + } else if (interval > 1) { + printf("approximately 1/%d the monitor refresh rate.\n", + interval); + } + } +} + +/** + * Handle one X event. + * \return NOP, EXIT or DRAW + */ +static int +handle_event(Display *dpy, Window win, XEvent *event) +{ + (void) dpy; + (void) win; + + switch (event->type) { + case Expose: + return DRAW; + case ConfigureNotify: + reshape(event->xconfigure.width, event->xconfigure.height); + break; + case KeyPress: + { + char buffer[10]; + int code; + code = XLookupKeysym(&event->xkey, 0); + if (code == XK_Left) { + view_roty += 5.0; + } + else if (code == XK_Right) { + view_roty -= 5.0; + } + else if (code == XK_Up) { + view_rotx += 5.0; + } + else if (code == XK_Down) { + view_rotx -= 5.0; + } + else { + XLookupString(&event->xkey, buffer, sizeof(buffer), + NULL, NULL); + if (buffer[0] == 27) { + /* escape */ + return EXIT; + } + else if (buffer[0] == 'a' || buffer[0] == 'A') { + animate = !animate; + } + } + return DRAW; + } + } + return NOP; +} + + +static void +event_loop(Display *dpy, Window win) +{ + while (1) { + int op; + while (!animate || XPending(dpy) > 0) { + XEvent event; + XNextEvent(dpy, &event); + op = handle_event(dpy, win, &event); + if (op == EXIT) + return; + else if (op == DRAW) + break; + } + + draw_frame(dpy, win); + } +} + + +static void +usage(void) +{ + printf("Usage:\n"); + printf(" -display set the display to run on\n"); + printf(" -stereo run in stereo mode\n"); + printf(" -samples N run in multisample mode with at least N samples\n"); + printf(" -fullscreen run in fullscreen mode\n"); + printf(" -info display OpenGL renderer info\n"); + printf(" -geometry WxH+X+Y window geometry\n"); +} + + +int +main(int argc, char *argv[]) +{ + unsigned int winWidth = 300, winHeight = 300; + int x = 0, y = 0; + Display *dpy; + Window win; + GLXContext ctx; + char *dpyName = NULL; + GLboolean printInfo = GL_FALSE; + int i; + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-display") == 0) { + dpyName = argv[i+1]; + i++; + } + else if (strcmp(argv[i], "-info") == 0) { + printInfo = GL_TRUE; + } + else if (strcmp(argv[i], "-stereo") == 0) { + stereo = GL_TRUE; + } + else if (i < argc-1 && strcmp(argv[i], "-samples") == 0) { + samples = strtod(argv[i+1], NULL ); + ++i; + } + else if (strcmp(argv[i], "-fullscreen") == 0) { + fullscreen = GL_TRUE; + } + else if (i < argc-1 && strcmp(argv[i], "-geometry") == 0) { + XParseGeometry(argv[i+1], &x, &y, &winWidth, &winHeight); + i++; + } + else { + usage(); + return -1; + } + } + + dpy = XOpenDisplay(dpyName); + if (!dpy) { + printf("Error: couldn't open display %s\n", + dpyName ? dpyName : getenv("DISPLAY")); + return -1; + } + + make_window(dpy, "glxgears", x, y, winWidth, winHeight, &win, &ctx); + XMapWindow(dpy, win); + glXMakeCurrent(dpy, win, ctx); + query_vsync(dpy, win); + + if (printInfo) { + printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS)); + } + + init(); + + /* Set initial projection/viewing transformation. + * We can't be sure we'll get a ConfigureNotify event when the window + * first appears. + */ + reshape(winWidth, winHeight); + + event_loop(dpy, win); + + glDeleteLists(gear1, 1); + glDeleteLists(gear2, 1); + glDeleteLists(gear3, 1); + glXMakeCurrent(dpy, None, NULL); + glXDestroyContext(dpy, ctx); + XDestroyWindow(dpy, win); + XCloseDisplay(dpy); + + return 0; +} --- Mesa.orig/xdemos/glxinfo.c 1970-01-01 01:00:00.000000000 +0100 +++ Mesa/xdemos/glxinfo.c 2012-08-14 15:00:23.000000000 +0200 @@ -0,0 +1,1389 @@ +/* + * 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 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 +#include +#include +#include +#include +#include +#include +#include + + +#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 + +typedef enum +{ + Normal, + Wide, + Verbose +} InfoMode; + + +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; +}; + + +/* + * qsort callback for string comparison. + */ +static int +compare_string_ptr(const void *p1, const void *p2) +{ + return strcmp(* (char * const *) p1, * (char * const *) p2); +} + + +/* + * Print a list of extensions, with word-wrapping. + */ +static void +print_extension_list(const char *ext, Bool singleLine) +{ + char **extensions; + int num_extensions; + const char *indentString = " "; + const int indent = 4; + const int max = 79; + int width, i, j, k; + + if (!ext || !ext[0]) + return; + + /* count the number of extensions, ignoring successive spaces */ + num_extensions = 0; + j = 1; + do { + if ((ext[j] == ' ' || ext[j] == 0) && ext[j - 1] != ' ') { + ++num_extensions; + } + } while(ext[j++]); + + /* copy individual extensions to an array */ + extensions = malloc(num_extensions * sizeof *extensions); + if (!extensions) { + fprintf(stderr, "Error: malloc() failed\n"); + exit(1); + } + i = j = k = 0; + while (1) { + if (ext[j] == ' ' || ext[j] == 0) { + /* found end of an extension name */ + const int len = j - i; + + if (len) { + assert(k < num_extensions); + + extensions[k] = malloc(len + 1); + if (!extensions[k]) { + fprintf(stderr, "Error: malloc() failed\n"); + exit(1); + } + + memcpy(extensions[k], ext + i, len); + extensions[k][len] = 0; + + ++k; + }; + + i += len + 1; + + if (ext[j] == 0) { + break; + } + } + j++; + } + assert(k == num_extensions); + + /* sort extensions alphabetically */ + qsort(extensions, num_extensions, sizeof extensions[0], compare_string_ptr); + + /* print the extensions */ + width = indent; + printf("%s", indentString); + for (k = 0; k < num_extensions; ++k) { + const int len = strlen(extensions[k]); + if ((!singleLine) && (width + len > max)) { + /* start a new line */ + printf("\n"); + width = indent; + printf("%s", indentString); + } + /* print the extension name */ + printf("%s", extensions[k]); + + /* either we're all done, or we'll continue with next extension */ + width += len + 1; + + if (singleLine) { + printf("\n"); + width = indent; + printf("%s", indentString); + } + else { + printf(", "); + width += 2; + } + } + printf("\n"); + + for (k = 0; k < num_extensions; ++k) { + free(extensions[k]); + } + free(extensions); +} + + +static void +print_display_info(Display *dpy) +{ + printf("name of display: %s\n", DisplayString(dpy)); +} + + +/** + * Print interesting limits for vertex/fragment programs. + */ +static void +print_program_limits(GLenum target) +{ +#if defined(GL_ARB_vertex_program) || defined(GL_ARB_fragment_program) + struct token_name { + GLenum token; + const char *name; + }; + static const struct token_name common_limits[] = { + { GL_MAX_PROGRAM_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_TEMPORARIES_ARB, "GL_MAX_PROGRAM_TEMPORARIES_ARB" }, + { GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB, "GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB" }, + { GL_MAX_PROGRAM_PARAMETERS_ARB, "GL_MAX_PROGRAM_PARAMETERS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB, "GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB" }, + { GL_MAX_PROGRAM_ATTRIBS_ARB, "GL_MAX_PROGRAM_ATTRIBS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB, "GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB" }, + { GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB, "GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB, "GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB" }, + { GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB, "GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB" }, + { GL_MAX_PROGRAM_ENV_PARAMETERS_ARB, "GL_MAX_PROGRAM_ENV_PARAMETERS_ARB" }, + { (GLenum) 0, NULL } + }; + static const struct token_name fragment_limits[] = { + { GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB, "GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB" }, + { (GLenum) 0, NULL } + }; + + PFNGLGETPROGRAMIVARBPROC GetProgramivARB_func = (PFNGLGETPROGRAMIVARBPROC) + glXGetProcAddressARB((GLubyte *) "glGetProgramivARB"); + + GLint max[1]; + int i; + + if (target == GL_VERTEX_PROGRAM_ARB) { + printf(" GL_VERTEX_PROGRAM_ARB:\n"); + } + else if (target == GL_FRAGMENT_PROGRAM_ARB) { + printf(" GL_FRAGMENT_PROGRAM_ARB:\n"); + } + else { + return; /* something's wrong */ + } + + for (i = 0; common_limits[i].token; i++) { + GetProgramivARB_func(target, common_limits[i].token, max); + if (glGetError() == GL_NO_ERROR) { + printf(" %s = %d\n", common_limits[i].name, max[0]); + } + } + if (target == GL_FRAGMENT_PROGRAM_ARB) { + for (i = 0; fragment_limits[i].token; i++) { + GetProgramivARB_func(target, fragment_limits[i].token, max); + if (glGetError() == GL_NO_ERROR) { + printf(" %s = %d\n", fragment_limits[i].name, max[0]); + } + } + } +#endif /* GL_ARB_vertex_program / GL_ARB_fragment_program */ +} + + +/** + * Print interesting limits for vertex/fragment shaders. + */ +static void +print_shader_limits(GLenum target) +{ + struct token_name { + GLenum token; + const char *name; + }; +#if defined(GL_ARB_vertex_shader) + static const struct token_name vertex_limits[] = { + { GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB, "GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB" }, + { GL_MAX_VARYING_FLOATS_ARB, "GL_MAX_VARYING_FLOATS_ARB" }, + { GL_MAX_VERTEX_ATTRIBS_ARB, "GL_MAX_VERTEX_ATTRIBS_ARB" }, + { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_TEXTURE_IMAGE_UNITS_ARB" }, + { GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB" }, + { GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB" }, + { GL_MAX_TEXTURE_COORDS_ARB, "GL_MAX_TEXTURE_COORDS_ARB" }, + { (GLenum) 0, NULL } + }; +#endif +#if defined(GL_ARB_fragment_shader) + static const struct token_name fragment_limits[] = { + { GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB, "GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB" }, + { GL_MAX_TEXTURE_COORDS_ARB, "GL_MAX_TEXTURE_COORDS_ARB" }, + { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_TEXTURE_IMAGE_UNITS_ARB" }, + { (GLenum) 0, NULL } + }; +#endif + GLint max[1]; + int i; + +#if defined(GL_ARB_vertex_shader) + if (target == GL_VERTEX_SHADER_ARB) { + printf(" GL_VERTEX_SHADER_ARB:\n"); + for (i = 0; vertex_limits[i].token; i++) { + glGetIntegerv(vertex_limits[i].token, max); + if (glGetError() == GL_NO_ERROR) { + printf(" %s = %d\n", vertex_limits[i].name, max[0]); + } + } + } +#endif +#if defined(GL_ARB_fragment_shader) + if (target == GL_FRAGMENT_SHADER_ARB) { + printf(" GL_FRAGMENT_SHADER_ARB:\n"); + for (i = 0; fragment_limits[i].token; i++) { + glGetIntegerv(fragment_limits[i].token, max); + if (glGetError() == GL_NO_ERROR) { + printf(" %s = %d\n", fragment_limits[i].name, max[0]); + } + } + } +#endif +} + + +/** Is extension 'ext' supported? */ +static int +extension_supported(const char *ext, const char *extensionsList) +{ + const char *p = strstr(extensionsList, ext); + if (p) { + /* check that next char is a space or end of string */ + int extLen = strlen(ext); + if (p[extLen] == 0 || p[extLen] == ' ') + return 1; + } + return 0; +} + + +/** + * Print interesting OpenGL implementation limits. + */ +static void +print_limits(const char *extensions) +{ + struct token_name { + GLuint count; + GLenum token; + const char *name; + const char *extension; + }; + static const struct token_name limits[] = { + { 1, GL_MAX_ATTRIB_STACK_DEPTH, "GL_MAX_ATTRIB_STACK_DEPTH", NULL }, + { 1, GL_MAX_CLIENT_ATTRIB_STACK_DEPTH, "GL_MAX_CLIENT_ATTRIB_STACK_DEPTH", NULL }, + { 1, GL_MAX_CLIP_PLANES, "GL_MAX_CLIP_PLANES", NULL }, + { 1, GL_MAX_COLOR_MATRIX_STACK_DEPTH, "GL_MAX_COLOR_MATRIX_STACK_DEPTH", "GL_ARB_imaging" }, + { 1, GL_MAX_ELEMENTS_VERTICES, "GL_MAX_ELEMENTS_VERTICES", NULL }, + { 1, GL_MAX_ELEMENTS_INDICES, "GL_MAX_ELEMENTS_INDICES", NULL }, + { 1, GL_MAX_EVAL_ORDER, "GL_MAX_EVAL_ORDER", NULL }, + { 1, GL_MAX_LIGHTS, "GL_MAX_LIGHTS", NULL }, + { 1, GL_MAX_LIST_NESTING, "GL_MAX_LIST_NESTING", NULL }, + { 1, GL_MAX_MODELVIEW_STACK_DEPTH, "GL_MAX_MODELVIEW_STACK_DEPTH", NULL }, + { 1, GL_MAX_NAME_STACK_DEPTH, "GL_MAX_NAME_STACK_DEPTH", NULL }, + { 1, GL_MAX_PIXEL_MAP_TABLE, "GL_MAX_PIXEL_MAP_TABLE", NULL }, + { 1, GL_MAX_PROJECTION_STACK_DEPTH, "GL_MAX_PROJECTION_STACK_DEPTH", NULL }, + { 1, GL_MAX_TEXTURE_STACK_DEPTH, "GL_MAX_TEXTURE_STACK_DEPTH", NULL }, + { 1, GL_MAX_TEXTURE_SIZE, "GL_MAX_TEXTURE_SIZE", NULL }, + { 1, GL_MAX_3D_TEXTURE_SIZE, "GL_MAX_3D_TEXTURE_SIZE", NULL }, + { 2, GL_MAX_VIEWPORT_DIMS, "GL_MAX_VIEWPORT_DIMS", NULL }, + { 2, GL_ALIASED_LINE_WIDTH_RANGE, "GL_ALIASED_LINE_WIDTH_RANGE", NULL }, + { 2, GL_SMOOTH_LINE_WIDTH_RANGE, "GL_SMOOTH_LINE_WIDTH_RANGE", NULL }, + { 2, GL_ALIASED_POINT_SIZE_RANGE, "GL_ALIASED_POINT_SIZE_RANGE", NULL }, + { 2, GL_SMOOTH_POINT_SIZE_RANGE, "GL_SMOOTH_POINT_SIZE_RANGE", NULL }, +#if defined(GL_ARB_texture_cube_map) + { 1, GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, "GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB", "GL_ARB_texture_cube_map" }, +#endif +#if defined(GL_NV_texture_rectangle) + { 1, GL_MAX_RECTANGLE_TEXTURE_SIZE_NV, "GL_MAX_RECTANGLE_TEXTURE_SIZE_NV", "GL_NV_texture_rectangle" }, +#endif +#if defined(GL_ARB_texture_compression) + { 1, GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB, "GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB", "GL_ARB_texture_compression" }, +#endif +#if defined(GL_ARB_multitexture) + { 1, GL_MAX_TEXTURE_UNITS_ARB, "GL_MAX_TEXTURE_UNITS_ARB", "GL_ARB_multitexture" }, +#endif +#if defined(GL_EXT_texture_lod_bias) + { 1, GL_MAX_TEXTURE_LOD_BIAS_EXT, "GL_MAX_TEXTURE_LOD_BIAS_EXT", "GL_EXT_texture_lod_bias" }, +#endif +#if defined(GL_EXT_texture_filter_anisotropic) + { 1, GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, "GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT", "GL_EXT_texture_filter_anisotropic" }, +#endif +#if defined(GL_ARB_draw_buffers) + { 1, GL_MAX_DRAW_BUFFERS_ARB, "GL_MAX_DRAW_BUFFERS_ARB", "GL_ARB_draw_buffers" }, +#endif +#if defined(GL_ARB_blend_func_extended) + { 1, GL_MAX_DUAL_SOURCE_DRAW_BUFFERS, "GL_MAX_DUAL_SOURCE_DRAW_BUFFERS", "GL_ARB_blend_func_extended" }, +#endif +#if defined (GL_ARB_framebuffer_object) + { 1, GL_MAX_RENDERBUFFER_SIZE, "GL_MAX_RENDERBUFFER_SIZE", "GL_ARB_framebuffer_object" }, + { 1, GL_MAX_COLOR_ATTACHMENTS, "GL_MAX_COLOR_ATTACHMENTS", "GL_ARB_framebuffer_object" }, + { 1, GL_MAX_SAMPLES, "GL_MAX_SAMPLES", "GL_ARB_framebuffer_object" }, +#endif + { 0, (GLenum) 0, NULL, NULL } + }; + GLint i, max[2]; + + printf("OpenGL limits:\n"); + for (i = 0; limits[i].count; i++) { + if (!limits[i].extension || + extension_supported(limits[i].extension, extensions)) { + glGetIntegerv(limits[i].token, max); + if (glGetError() == GL_NO_ERROR) { + if (limits[i].count == 1) + printf(" %s = %d\n", limits[i].name, max[0]); + else /* XXX fix if we ever query something with more than 2 values */ + printf(" %s = %d, %d\n", limits[i].name, max[0], max[1]); + } + } + } + + /* these don't fit into the above mechanism, unfortunately */ + if (extension_supported("GL_ARB_imaging", extensions)) { + glGetConvolutionParameteriv(GL_CONVOLUTION_2D, GL_MAX_CONVOLUTION_WIDTH, max); + glGetConvolutionParameteriv(GL_CONVOLUTION_2D, GL_MAX_CONVOLUTION_HEIGHT, max+1); + printf(" GL_MAX_CONVOLUTION_WIDTH/HEIGHT = %d, %d\n", max[0], max[1]); + } + +#if defined(GL_ARB_vertex_program) + if (extension_supported("GL_ARB_vertex_program", extensions)) { + print_program_limits(GL_VERTEX_PROGRAM_ARB); + } +#endif +#if defined(GL_ARB_fragment_program) + if (extension_supported("GL_ARB_fragment_program", extensions)) { + print_program_limits(GL_FRAGMENT_PROGRAM_ARB); + } +#endif +#if defined(GL_ARB_vertex_shader) + if (extension_supported("GL_ARB_vertex_shader", extensions)) { + print_shader_limits(GL_VERTEX_SHADER_ARB); + } +#endif +#if defined(GL_ARB_fragment_shader) + if (extension_supported("GL_ARB_fragment_shader", extensions)) { + print_shader_limits(GL_FRAGMENT_SHADER_ARB); + } +#endif +} + + +static void +print_screen_info(Display *dpy, int scrnum, Bool allowDirect, Bool limits, Bool singleLine) +{ + 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 = NULL; + XVisualInfo *visinfo; + int width = 100, height = 100; + + root = RootWindow(dpy, scrnum); + + /* + * Find a basic GLX visual. We'll then create a rendering context and + * query various info strings. + */ + visinfo = glXChooseVisual(dpy, scrnum, attribSingle); + if (!visinfo) + visinfo = glXChooseVisual(dpy, scrnum, attribDouble); + + if (visinfo) + ctx = glXCreateContext( dpy, visinfo, NULL, allowDirect ); + +#ifdef GLX_VERSION_1_3 + /* Try glXChooseFBConfig() if glXChooseVisual didn't work. + * XXX when would that happen? + */ + if (!visinfo) { + 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 = NULL; + int nConfigs; + + configs = glXChooseFBConfig(dpy, scrnum, fbAttribSingle, &nConfigs); + if (!configs) + configs = glXChooseFBConfig(dpy, scrnum, fbAttribDouble, &nConfigs); + + if (configs) { + visinfo = glXGetVisualFromFBConfig(dpy, configs[0]); + ctx = glXCreateNewContext(dpy, configs[0], GLX_RGBA_TYPE, NULL, allowDirect); + XFree(configs); + } + } +#endif + + if (!visinfo) { + fprintf(stderr, "Error: couldn't find RGB GLX visual or fbconfig\n"); + return; + } + + if (!ctx) { + fprintf(stderr, "Error: glXCreateContext failed\n"); + XFree(visinfo); + 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); + + 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); + int glxVersionMajor; + int glxVersionMinor; + char *displayName = NULL; + char *colon = NULL, *period = NULL; + + if (! glXQueryVersion( dpy, & glxVersionMajor, & glxVersionMinor )) { + fprintf(stderr, "Error: glXQueryVersion failed\n"); + exit(1); + } + + /* 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 (!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"); + } + } + 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, 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, singleLine); + printf("GLX version: %u.%u\n", glxVersionMajor, glxVersionMinor); + printf("GLX extensions:\n"); + print_extension_list(glxExtensions, singleLine); + printf("OpenGL vendor string: %s\n", glVendor); + printf("OpenGL renderer string: %s\n", glRenderer); + printf("OpenGL version string: %s\n", glVersion); +#ifdef GL_VERSION_2_0 + if (glVersion[0] >= '2' && glVersion[1] == '.') { + char *v = (char *) glGetString(GL_SHADING_LANGUAGE_VERSION); + printf("OpenGL shading language version string: %s\n", v); + } +#endif + + printf("OpenGL extensions:\n"); + print_extension_list(glExtensions, singleLine); + if (limits) + print_limits(glExtensions); + } + else { + fprintf(stderr, "Error: glXMakeCurrent failed\n"); + } + + glXDestroyContext(dpy, ctx); + XFree(visinfo); + 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_drawable_type(int type) +{ + static char buffer[256], *p; + const static struct { int bit; const char *name; } bits[] = { + { GLX_WINDOW_BIT, "window" }, + { GLX_PIXMAP_BIT, "pixmap" }, + { GLX_PBUFFER_BIT, "pbuffer" } + }; + int i; + + strcpy(buffer, "(none)"); + p = buffer; + for (i = 0; i < 3; i++) { + if (type & bits[i].bit) { + if (p > buffer) + *p++ = ','; + strcpy(p, bits[i].name); + p += strlen(bits[i].name); + } + } + + return buffer; +} + +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; +} + + +static void +usage(void) +{ + printf("Usage: glxinfo [-v] [-t] [-h] [-i] [-b] [-s] ][-display ]\n"); + printf("\t-v: Print visuals info in verbose form.\n"); + printf("\t-t: Print verbose table.\n"); + printf("\t-display : Print GLX visuals on specified server.\n"); + printf("\t-h: This information.\n"); + printf("\t-i: Force an indirect rendering context.\n"); + printf("\t-b: Find the 'best' visual and print its number.\n"); + printf("\t-l: Print interesting OpenGL limits.\n"); + printf("\t-s: Print a single extension per line.\n"); +} + + +int +main(int argc, char *argv[]) +{ + char *displayName = NULL; + Display *dpy; + int numScreens, scrnum; + InfoMode mode = Normal; + Bool findBest = False; + Bool limits = False; + Bool allowDirect = True; + Bool singleLine = False; + 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; + } + else if (strcmp(argv[i], "-b") == 0) { + findBest = True; + } + else if (strcmp(argv[i], "-i") == 0) { + allowDirect = False; + } + else if (strcmp(argv[i], "-l") == 0) { + limits = True; + } + else if (strcmp(argv[i], "-h") == 0) { + usage(); + return 0; + } + else if (strcmp(argv[i], "-s") == 0) { + singleLine = True; + } + else { + printf("Unknown option `%s'\n", argv[i]); + usage(); + return 0; + } + } + + dpy = XOpenDisplay(displayName); + if (!dpy) { + fprintf(stderr, "Error: unable to open display %s\n", XDisplayName(displayName)); + return -1; + } + + if (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); + print_screen_info(dpy, scrnum, allowDirect, limits, singleLine); + printf("\n"); + print_visual_info(dpy, scrnum, mode); +#ifdef GLX_VERSION_1_3 + print_fbconfig_info(dpy, scrnum, mode); +#endif + if (scrnum + 1 < numScreens) + printf("\n\n"); + } + } + + XCloseDisplay(dpy); + + return 0; +} --- Mesa.orig/xdemos/Makefile 1970-01-01 01:00:00.000000000 +0100 +++ Mesa/xdemos/Makefile 2012-08-14 15:02:05.458705999 +0200 @@ -0,0 +1,23 @@ +TOP = .. + +include $(TOP)/configs/current +XDEMOS_LIBS = -L$(TOP)/$(LIB_DIR) -lGL -lglapi $(X11_LIBS) -lm + +default: glxinfo glxgears + +glxgears: + $(CC) -I$(TOP)/include $(XDEMOS_LIBS) -o glxgears glxgears.c + +glxinfo: + $(CC) -I$(TOP)/include $(XDEMOS_LIBS) -o glxinfo glxinfo.c + +install: glxgears glxinfo + test -e $(DESTDIR)$(INSTALL_DIR)/bin || $(INSTALL) -v -d -m755 $(DESTDIR)$(INSTALL_DIR)/bin + $(INSTALL) -v -m755 glxgears $(DESTDIR)$(INSTALL_DIR)/bin + $(INSTALL) -v -m755 glxinfo $(DESTDIR)$(INSTALL_DIR)/bin + +clean: + rm -f glxgears glxinfo + +.phony: default glxgears glxinfo install clean +