+++ /dev/null
-/*
- * 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
- *
- * Modified by Ian Romanick <idr@us.ibm.com> 09 April 2003 to support
- * GLX_{MESA,SGI}_swap_control and GLX_OML_sync_control.
- *
- * Command line options:
- * -display Name of the display to use.
- * -info print GL implementation information
- * -swap N Attempt to set the swap interval to 1/N second
- * -forcegetrate Get the display refresh rate even if the required GLX
- * extension is not supported.
- */
-
-
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/keysym.h>
-#ifndef __VMS
-/*# include <stdint.h>*/
-#endif
-# define GLX_GLXEXT_PROTOTYPES
-#include <GL/gl.h>
-#include <GL/glx.h>
-
-#ifndef GLX_MESA_swap_control
-typedef GLint ( * PFNGLXSWAPINTERVALMESAPROC) (unsigned interval);
-typedef GLint ( * PFNGLXGETSWAPINTERVALMESAPROC) ( void );
-#endif
-
-#if !defined( GLX_OML_sync_control ) && defined( _STDINT_H )
-#define GLX_OML_sync_control 1
-typedef Bool ( * PFNGLXGETMSCRATEOMLPROC) (Display *dpy, GLXDrawable drawable, int32_t *numerator, int32_t *denominator);
-#endif
-
-#ifndef GLX_MESA_swap_frame_usage
-#define GLX_MESA_swap_frame_usage 1
-typedef int ( * PFNGLXGETFRAMEUSAGEMESAPROC) (Display *dpy, GLXDrawable drawable, float * usage );
-#endif
-
-#define BENCHMARK
-
-PFNGLXGETFRAMEUSAGEMESAPROC get_frame_usage = NULL;
-
-#ifdef BENCHMARK
-
-/* XXX this probably isn't very portable */
-
-#include <sys/time.h>
-#include <unistd.h>
-
-#define NUL '\0'
-
-/* return current time (in seconds) */
-static int
-current_time(void)
-{
- struct timeval tv;
-#ifdef __VMS
- (void) gettimeofday(&tv, NULL );
-#else
- struct timezone tz;
- (void) gettimeofday(&tv, &tz);
-#endif
- return (int) tv.tv_sec;
-}
-
-#else /*BENCHMARK*/
-
-/* dummy */
-static int
-current_time(void)
-{
- return 0;
-}
-
-#endif /*BENCHMARK*/
-
-
-
-#ifndef M_PI
-#define M_PI 3.14159265
-#endif
-
-
-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 has_OML_sync_control = GL_FALSE;
-static GLboolean has_SGI_swap_control = GL_FALSE;
-static GLboolean has_MESA_swap_control = GL_FALSE;
-static GLboolean has_MESA_swap_frame_usage = GL_FALSE;
-
-static char ** extension_table = NULL;
-static unsigned num_extensions;
-
-static GLboolean use_ztrick = GL_FALSE;
-static GLfloat aspectX = 1.0f, aspectY = 1.0f;
-
-/*
- *
- * 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)
-{
- if ( use_ztrick ) {
- static GLboolean flip = GL_FALSE;
- static const GLfloat vert[4][3] = {
- { -1, -1, -0.999 },
- { 1, -1, -0.999 },
- { 1, 1, -0.999 },
- { -1, 1, -0.999 }
- };
- static const GLfloat col[4][3] = {
- { 1.0, 0.6, 0.0 },
- { 1.0, 0.6, 0.0 },
- { 0.0, 0.0, 0.0 },
- { 0.0, 0.0, 0.0 },
- };
-
- if ( flip ) {
- glDepthRange(0, 0.5);
- glDepthFunc(GL_LEQUAL);
- }
- else {
- glDepthRange(1.0, 0.4999);
- glDepthFunc(GL_GEQUAL);
- }
-
- flip = !flip;
-
- /* The famous Quake "Z trick" only works when the whole screen is
- * re-drawn each frame.
- */
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(-1, 1, -1, 1, -1, 1);
- glDisable(GL_LIGHTING);
- glShadeModel(GL_SMOOTH);
-
- glEnableClientState( GL_VERTEX_ARRAY );
- glEnableClientState( GL_COLOR_ARRAY );
- glVertexPointer( 3, GL_FLOAT, 0, vert );
- glColorPointer( 3, GL_FLOAT, 0, col );
- glDrawArrays( GL_POLYGON, 0, 4 );
- glDisableClientState( GL_COLOR_ARRAY );
- glDisableClientState( GL_VERTEX_ARRAY );
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustum(-aspectX, aspectX, -aspectY, aspectY, 5.0, 60.0);
-
- glEnable(GL_LIGHTING);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -45.0);
- }
- else {
- 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();
-}
-
-
-/* new window size or exposure */
-static void
-reshape(int width, int height)
-{
- if (width > height) {
- aspectX = (GLfloat) width / (GLfloat) height;
- aspectY = 1.0;
- }
- else {
- aspectX = 1.0;
- aspectY = (GLfloat) height / (GLfloat) width;
- }
-
- glViewport(0, 0, (GLint) width, (GLint) height);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
-
- glFrustum(-aspectX, aspectX, -aspectY, aspectY, 5.0, 60.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -45.0);
-}
-
-
-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, GLboolean fullscreen,
- Window *winRet, GLXContext *ctxRet)
-{
- int attrib[] = { GLX_RGBA,
- GLX_RED_SIZE, 1,
- GLX_GREEN_SIZE, 1,
- GLX_BLUE_SIZE, 1,
- GLX_DOUBLEBUFFER,
- GLX_DEPTH_SIZE, 1,
- None };
- int scrnum;
- XSetWindowAttributes attr;
- unsigned long mask;
- Window root;
- Window win;
- GLXContext ctx;
- XVisualInfo *visinfo;
-
- scrnum = DefaultScreen( dpy );
- root = RootWindow( dpy, scrnum );
-
- if (fullscreen) {
- x = y = 0;
- width = DisplayWidth( dpy, scrnum );
- height = DisplayHeight( dpy, scrnum );
- }
-
- visinfo = glXChooseVisual( dpy, scrnum, attrib );
- if (!visinfo) {
- printf("Error: couldn't get an RGB, Double-buffered 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;
- mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
-
- win = XCreateWindow( dpy, root, 0, 0, width, height,
- 0, visinfo->depth, InputOutput,
- visinfo->visual, mask, &attr );
-
- /* 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);
- }
-
- if (fullscreen)
- no_border(dpy, win);
-
- ctx = glXCreateContext( dpy, visinfo, NULL, True );
- if (!ctx) {
- printf("Error: glXCreateContext failed\n");
- exit(1);
- }
-
- XFree(visinfo);
-
- *winRet = win;
- *ctxRet = ctx;
-}
-
-
-static void
-event_loop(Display *dpy, Window win)
-{
- float frame_usage = 0.0;
-
- while (1) {
- while (XPending(dpy) > 0) {
- XEvent event;
- XNextEvent(dpy, &event);
- switch (event.type) {
- case Expose:
- /* we'll redraw below */
- break;
- case ConfigureNotify:
- reshape(event.xconfigure.width, event.xconfigure.height);
- break;
- case KeyPress:
- {
- char buffer[10];
- int r, 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 {
- r = XLookupString(&event.xkey, buffer, sizeof(buffer),
- NULL, NULL);
- if (buffer[0] == 27) {
- /* escape */
- return;
- }
- }
- }
- }
- }
-
- /* next frame */
- angle += 2.0;
-
- draw();
-
- glXSwapBuffers(dpy, win);
-
- if ( get_frame_usage != NULL ) {
- GLfloat temp;
-
- (*get_frame_usage)( dpy, win, & temp );
- frame_usage += temp;
- }
-
- /* calc framerate */
- {
- static int t0 = -1;
- static int frames = 0;
- int t = current_time();
-
- if (t0 < 0)
- t0 = t;
-
- frames++;
-
- if (t - t0 >= 5.0) {
- GLfloat seconds = t - t0;
- GLfloat fps = frames / seconds;
- if ( get_frame_usage != NULL ) {
- printf("%d frames in %3.1f seconds = %6.3f FPS (%3.1f%% usage)\n",
- frames, seconds, fps,
- (frame_usage * 100.0) / (float) frames );
- }
- else {
- printf("%d frames in %3.1f seconds = %6.3f FPS\n",
- frames, seconds, fps);
- }
-
- t0 = t;
- frames = 0;
- frame_usage = 0.0;
- }
- }
- }
-}
-
-
-/**
- * Display the refresh rate of the display using the GLX_OML_sync_control
- * extension.
- */
-static void
-show_refresh_rate( Display * dpy )
-{
-#if defined(GLX_OML_sync_control) && defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
- PFNGLXGETMSCRATEOMLPROC get_msc_rate;
- int32_t n;
- int32_t d;
-
- get_msc_rate = (PFNGLXGETMSCRATEOMLPROC) glXGetProcAddressARB( (const GLubyte *) "glXGetMscRateOML" );
- if ( get_msc_rate != NULL ) {
- (*get_msc_rate)( dpy, glXGetCurrentDrawable(), &n, &d );
- printf( "refresh rate: %.1fHz\n", (float) n / d );
- return;
- }
-#endif
- printf( "glXGetMscRateOML not supported.\n" );
-}
-
-
-/**
- * Fill in the table of extension strings from a supplied extensions string
- * (as returned by glXQueryExtensionsString).
- *
- * \param string String of GLX extensions.
- * \sa is_extension_supported
- */
-static void
-make_extension_table( const char * string )
-{
- char ** string_tab;
- unsigned num_strings;
- unsigned base;
- unsigned idx;
- unsigned i;
-
- /* Count the number of spaces in the string. That gives a base-line
- * figure for the number of extension in the string.
- */
-
- num_strings = 1;
- for ( i = 0 ; string[i] != NUL ; i++ ) {
- if ( string[i] == ' ' ) {
- num_strings++;
- }
- }
-
- string_tab = (char **) malloc( sizeof( char * ) * num_strings );
- if ( string_tab == NULL ) {
- return;
- }
-
- base = 0;
- idx = 0;
-
- while ( string[ base ] != NUL ) {
- /* Determine the length of the next extension string.
- */
-
- for ( i = 0
- ; (string[ base + i ] != NUL) && (string[ base + i ] != ' ')
- ; i++ ) {
- /* empty */ ;
- }
-
- if ( i > 0 ) {
- /* If the string was non-zero length, add it to the table. We
- * can get zero length strings if there is a space at the end of
- * the string or if there are two (or more) spaces next to each
- * other in the string.
- */
-
- string_tab[ idx ] = malloc( sizeof( char ) * (i + 1) );
- if ( string_tab[ idx ] == NULL ) {
- return;
- }
-
- (void) memcpy( string_tab[ idx ], & string[ base ], i );
- string_tab[ idx ][i] = NUL;
- idx++;
- }
-
-
- /* Skip to the start of the next extension string.
- */
-
- for ( base += i
- ; (string[ base ] == ' ') && (string[ base ] != NUL)
- ; base++ ) {
- /* empty */ ;
- }
- }
-
- extension_table = string_tab;
- num_extensions = idx;
-}
-
-
-/**
- * Determine of an extension is supported. The extension string table
- * must have already be initialized by calling \c make_extension_table.
- *
- * \praram ext Extension to be tested.
- * \return GL_TRUE of the extension is supported, GL_FALSE otherwise.
- * \sa make_extension_table
- */
-static GLboolean
-is_extension_supported( const char * ext )
-{
- unsigned i;
-
- for ( i = 0 ; i < num_extensions ; i++ ) {
- if ( strcmp( ext, extension_table[i] ) == 0 ) {
- return GL_TRUE;
- }
- }
-
- return GL_FALSE;
-}
-
-
-int
-main(int argc, char *argv[])
-{
- Display *dpy;
- Window win;
- GLXContext ctx;
- char *dpyName = NULL;
- int swap_interval = 1;
- GLboolean do_swap_interval = GL_FALSE;
- GLboolean force_get_rate = GL_FALSE;
- GLboolean fullscreen = GL_FALSE;
- GLboolean printInfo = GL_FALSE;
- int i;
- PFNGLXSWAPINTERVALMESAPROC set_swap_interval = NULL;
- PFNGLXGETSWAPINTERVALMESAPROC get_swap_interval = NULL;
- int width = 300, height = 300;
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-display") == 0 && i + 1 < argc) {
- dpyName = argv[i+1];
- i++;
- }
- else if (strcmp(argv[i], "-info") == 0) {
- printInfo = GL_TRUE;
- }
- else if (strcmp(argv[i], "-swap") == 0 && i + 1 < argc) {
- swap_interval = atoi( argv[i+1] );
- do_swap_interval = GL_TRUE;
- i++;
- }
- else if (strcmp(argv[i], "-forcegetrate") == 0) {
- /* This option was put in because some DRI drivers don't support the
- * full GLX_OML_sync_control extension, but they do support
- * glXGetMscRateOML.
- */
- force_get_rate = GL_TRUE;
- }
- else if (strcmp(argv[i], "-fullscreen") == 0) {
- fullscreen = GL_TRUE;
- }
- else if (strcmp(argv[i], "-ztrick") == 0) {
- use_ztrick = GL_TRUE;
- }
- else if (strcmp(argv[i], "-help") == 0) {
- printf("Usage:\n");
- printf(" gears [options]\n");
- printf("Options:\n");
- printf(" -help Print this information\n");
- printf(" -display displayName Specify X display\n");
- printf(" -info Display GL information\n");
- printf(" -swap N Swap no more than once per N vertical refreshes\n");
- printf(" -forcegetrate Try to use glXGetMscRateOML function\n");
- printf(" -fullscreen Full-screen window\n");
- return 0;
- }
- }
-
- dpy = XOpenDisplay(dpyName);
- if (!dpy) {
- printf("Error: couldn't open display %s\n", XDisplayName(dpyName));
- return -1;
- }
-
- make_window(dpy, "glxgears", 0, 0, width, height, fullscreen, &win, &ctx);
- XMapWindow(dpy, win);
- glXMakeCurrent(dpy, win, ctx);
-
- make_extension_table( (char *) glXQueryExtensionsString(dpy,DefaultScreen(dpy)) );
- has_OML_sync_control = is_extension_supported( "GLX_OML_sync_control" );
- has_SGI_swap_control = is_extension_supported( "GLX_SGI_swap_control" );
- has_MESA_swap_control = is_extension_supported( "GLX_MESA_swap_control" );
- has_MESA_swap_frame_usage = is_extension_supported( "GLX_MESA_swap_frame_usage" );
-
- if ( has_MESA_swap_control ) {
- set_swap_interval = (PFNGLXSWAPINTERVALMESAPROC) glXGetProcAddressARB( (const GLubyte *) "glXSwapIntervalMESA" );
- get_swap_interval = (PFNGLXGETSWAPINTERVALMESAPROC) glXGetProcAddressARB( (const GLubyte *) "glXGetSwapIntervalMESA" );
- }
- else if ( has_SGI_swap_control ) {
- set_swap_interval = (PFNGLXSWAPINTERVALMESAPROC) glXGetProcAddressARB( (const GLubyte *) "glXSwapIntervalSGI" );
- }
-
-
- if ( has_MESA_swap_frame_usage ) {
- get_frame_usage = (PFNGLXGETFRAMEUSAGEMESAPROC) glXGetProcAddressARB( (const GLubyte *) "glXGetFrameUsageMESA" );
- }
-
-
- 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));
- if ( has_OML_sync_control || force_get_rate ) {
- show_refresh_rate( dpy );
- }
-
- if ( get_swap_interval != NULL ) {
- printf("Default swap interval = %d\n", (*get_swap_interval)() );
- }
- }
-
- if ( do_swap_interval ) {
- if ( set_swap_interval != NULL ) {
- if ( ((swap_interval == 0) && !has_MESA_swap_control)
- || (swap_interval < 0) ) {
- printf( "Swap interval must be non-negative or greater than zero "
- "if GLX_MESA_swap_control is not supported.\n" );
- }
- else {
- (*set_swap_interval)( swap_interval );
- }
-
- if ( printInfo && (get_swap_interval != NULL) ) {
- printf("Current swap interval = %d\n", (*get_swap_interval)() );
- }
- }
- else {
- printf("Unable to set swap-interval. Neither GLX_SGI_swap_control "
- "nor GLX_MESA_swap_control are supported.\n" );
- }
- }
-
- init();
-
- /* Set initial projection/viewing transformation.
- * same as glxgears.c
- */
- reshape(width, height);
-
- event_loop(dpy, win);
-
- glXDestroyContext(dpy, ctx);
- XDestroyWindow(dpy, win);
- XCloseDisplay(dpy);
-
- return 0;
-}
projects / mesa.git / blobdiff