2
* Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
4
* Permission is hereby granted, free of charge, to any person obtaining a
5
* copy of this software and associated documentation files (the "Software"),
6
* to deal in the Software without restriction, including without limitation
7
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
8
* and/or sell copies of the Software, and to permit persons to whom the
9
* Software is furnished to do so, subject to the following conditions:
11
* The above copyright notice and this permission notice shall be included
12
* in all copies or substantial portions of the Software.
14
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23
* \file glxgears_fbconfig.c
24
* Yet-another-version of gears. Originally ported to GLX by Brian Paul on
25
* 23 March 2001. Modified to use fbconfigs by Ian Romanick on 10 Feb 2004.
27
* Command line options:
28
* -info print GL implementation information
31
* \author Ian Romanick <idr@us.ibm.com>
35
#define GLX_GLXEXT_PROTOTYPES
42
#include <X11/keysym.h>
45
#include <GL/glxext.h>
49
static PFNGLXCHOOSEFBCONFIGPROC choose_fbconfig = NULL;
50
static PFNGLXGETVISUALFROMFBCONFIGPROC get_visual_from_fbconfig = NULL;
51
static PFNGLXCREATENEWCONTEXTPROC create_new_context = NULL;
52
static PFNGLXCREATEWINDOWPROC create_window = NULL;
53
static PFNGLXDESTROYWINDOWPROC destroy_window = NULL;
59
/* XXX this probably isn't very portable */
64
/* return current time (in seconds) */
70
(void) gettimeofday(&tv, NULL );
73
(void) gettimeofday(&tv, &tz);
75
return (int) tv.tv_sec;
92
#define M_PI 3.14159265
96
static GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
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static GLint gear1, gear2, gear3;
98
static GLfloat angle = 0.0;
103
* Draw a gear wheel. You'll probably want to call this function when
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* building a display list since we do a lot of trig here.
106
* Input: inner_radius - radius of hole at center
107
* outer_radius - radius at center of teeth
108
* width - width of gear
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* teeth - number of teeth
110
* tooth_depth - depth of tooth
113
gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
114
GLint teeth, GLfloat tooth_depth)
122
r1 = outer_radius - tooth_depth / 2.0;
123
r2 = outer_radius + tooth_depth / 2.0;
125
da = 2.0 * M_PI / teeth / 4.0;
127
glShadeModel(GL_FLAT);
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glNormal3f(0.0, 0.0, 1.0);
131
/* draw front face */
132
glBegin(GL_QUAD_STRIP);
133
for (i = 0; i <= teeth; i++) {
134
angle = i * 2.0 * M_PI / teeth;
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glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
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glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
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glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
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glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
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/* draw front sides of teeth */
147
da = 2.0 * M_PI / teeth / 4.0;
148
for (i = 0; i < teeth; i++) {
149
angle = i * 2.0 * M_PI / teeth;
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glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
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glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
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glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
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glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
160
glNormal3f(0.0, 0.0, -1.0);
163
glBegin(GL_QUAD_STRIP);
164
for (i = 0; i <= teeth; i++) {
165
angle = i * 2.0 * M_PI / teeth;
166
glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
167
glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
169
glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
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glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
176
/* draw back sides of teeth */
178
da = 2.0 * M_PI / teeth / 4.0;
179
for (i = 0; i < teeth; i++) {
180
angle = i * 2.0 * M_PI / teeth;
182
glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
184
glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
186
glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
187
glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
191
/* draw outward faces of teeth */
192
glBegin(GL_QUAD_STRIP);
193
for (i = 0; i < teeth; i++) {
194
angle = i * 2.0 * M_PI / teeth;
196
glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
197
glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
198
u = r2 * cos(angle + da) - r1 * cos(angle);
199
v = r2 * sin(angle + da) - r1 * sin(angle);
200
len = sqrt(u * u + v * v);
203
glNormal3f(v, -u, 0.0);
204
glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
205
glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
206
glNormal3f(cos(angle), sin(angle), 0.0);
207
glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
209
glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
211
u = r1 * cos(angle + 3 * da) - r2 * cos(angle + 2 * da);
212
v = r1 * sin(angle + 3 * da) - r2 * sin(angle + 2 * da);
213
glNormal3f(v, -u, 0.0);
214
glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
216
glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
218
glNormal3f(cos(angle), sin(angle), 0.0);
221
glVertex3f(r1 * cos(0), r1 * sin(0), width * 0.5);
222
glVertex3f(r1 * cos(0), r1 * sin(0), -width * 0.5);
226
glShadeModel(GL_SMOOTH);
228
/* draw inside radius cylinder */
229
glBegin(GL_QUAD_STRIP);
230
for (i = 0; i <= teeth; i++) {
231
angle = i * 2.0 * M_PI / teeth;
232
glNormal3f(-cos(angle), -sin(angle), 0.0);
233
glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
234
glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
243
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
246
glRotatef(view_rotx, 1.0, 0.0, 0.0);
247
glRotatef(view_roty, 0.0, 1.0, 0.0);
248
glRotatef(view_rotz, 0.0, 0.0, 1.0);
251
glTranslatef(-3.0, -2.0, 0.0);
252
glRotatef(angle, 0.0, 0.0, 1.0);
257
glTranslatef(3.1, -2.0, 0.0);
258
glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0);
263
glTranslatef(-3.1, 4.2, 0.0);
264
glRotatef(-2.0 * angle - 25.0, 0.0, 0.0, 1.0);
272
/* new window size or exposure */
274
reshape(int width, int height)
276
GLfloat h = (GLfloat) height / (GLfloat) width;
278
glViewport(0, 0, (GLint) width, (GLint) height);
279
glMatrixMode(GL_PROJECTION);
281
glFrustum(-1.0, 1.0, -h, h, 5.0, 60.0);
282
glMatrixMode(GL_MODELVIEW);
284
glTranslatef(0.0, 0.0, -40.0);
291
static GLfloat pos[4] = { 5.0, 5.0, 10.0, 0.0 };
292
static GLfloat red[4] = { 0.8, 0.1, 0.0, 1.0 };
293
static GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 };
294
static GLfloat blue[4] = { 0.2, 0.2, 1.0, 1.0 };
296
glLightfv(GL_LIGHT0, GL_POSITION, pos);
297
glEnable(GL_CULL_FACE);
298
glEnable(GL_LIGHTING);
300
glEnable(GL_DEPTH_TEST);
303
gear1 = glGenLists(1);
304
glNewList(gear1, GL_COMPILE);
305
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
306
gear(1.0, 4.0, 1.0, 20, 0.7);
309
gear2 = glGenLists(1);
310
glNewList(gear2, GL_COMPILE);
311
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
312
gear(0.5, 2.0, 2.0, 10, 0.7);
315
gear3 = glGenLists(1);
316
glNewList(gear3, GL_COMPILE);
317
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue);
318
gear(1.3, 2.0, 0.5, 10, 0.7);
321
glEnable(GL_NORMALIZE);
326
dummy_create_window(Display *dpy, GLXFBConfig config, Window win,
327
const int *attrib_list)
333
return (GLXWindow) win;
338
dummy_destroy_window(Display *dpy, GLXWindow win)
346
* Initialize fbconfig related function pointers.
349
init_fbconfig_functions(Display *dpy, int scrnum)
351
const char * glx_extensions;
353
static const char ext_name[] = "GLX_SGIX_fbconfig";
354
const size_t len = strlen( ext_name );
357
GLboolean ext_version_supported;
358
GLboolean glx_1_3_supported;
361
/* Determine if GLX 1.3 or greater is supported.
363
glXQueryVersion(dpy, & major, & minor);
364
glx_1_3_supported = (major == 1) && (minor >= 3);
366
/* Determine if GLX_SGIX_fbconfig is supported.
368
glx_extensions = glXQueryExtensionsString(dpy, scrnum);
369
match = strstr( glx_extensions, ext_name );
371
ext_version_supported = (match != NULL)
372
&& ((match[len] == '\0') || (match[len] == ' '));
374
printf( "GLX 1.3 is %ssupported.\n",
375
(glx_1_3_supported) ? "" : "not " );
376
printf( "%s is %ssupported.\n",
377
ext_name, (ext_version_supported) ? "" : "not " );
379
if ( glx_1_3_supported ) {
380
choose_fbconfig = (PFNGLXCHOOSEFBCONFIGPROC)
381
glXGetProcAddressARB((GLubyte *) "glXChooseFBConfig");
382
get_visual_from_fbconfig = (PFNGLXGETVISUALFROMFBCONFIGPROC)
383
glXGetProcAddressARB((GLubyte *) "glXGetVisualFromFBConfig");
384
create_new_context = (PFNGLXCREATENEWCONTEXTPROC)
385
glXGetProcAddressARB((GLubyte *) "glXCreateNewContext");
386
create_window = (PFNGLXCREATEWINDOWPROC)
387
glXGetProcAddressARB((GLubyte *) "glXCreateWindow");
388
destroy_window = (PFNGLXDESTROYWINDOWPROC)
389
glXGetProcAddressARB((GLubyte *) "glXDestroyWindow");
391
else if ( ext_version_supported ) {
392
choose_fbconfig = (PFNGLXCHOOSEFBCONFIGPROC)
393
glXGetProcAddressARB((GLubyte *) "glXChooseFBConfigSGIX");
394
get_visual_from_fbconfig = (PFNGLXGETVISUALFROMFBCONFIGPROC)
395
glXGetProcAddressARB((GLubyte *) "glXGetVisualFromFBConfigSGIX");
396
create_new_context = (PFNGLXCREATENEWCONTEXTPROC)
397
glXGetProcAddressARB((GLubyte *) "glXCreateContextWithConfigSGIX");
398
create_window = dummy_create_window;
399
destroy_window = dummy_destroy_window;
402
printf( "This demo requires either GLX 1.3 or %s be supported.\n",
407
if ( choose_fbconfig == NULL ) {
408
printf( "glXChooseFBConfig not found!\n" );
412
if ( get_visual_from_fbconfig == NULL ) {
413
printf( "glXGetVisualFromFBConfig not found!\n" );
417
if ( create_new_context == NULL ) {
418
printf( "glXCreateNewContext not found!\n" );
425
* Create an RGB, double-buffered window.
426
* Return the window and context handles.
429
make_window( Display *dpy, const char *name,
430
int x, int y, int width, int height,
431
Window *winRet, GLXWindow *glxWinRet, GLXContext *ctxRet)
433
int attrib[] = { GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
434
GLX_RENDER_TYPE, GLX_RGBA_BIT,
438
GLX_DOUBLEBUFFER, GL_TRUE,
441
GLXFBConfig * fbconfig;
445
XSetWindowAttributes attr;
451
XVisualInfo *visinfo;
453
scrnum = DefaultScreen( dpy );
454
root = RootWindow( dpy, scrnum );
456
init_fbconfig_functions(dpy, scrnum);
457
fbconfig = (*choose_fbconfig)(dpy, scrnum, attrib, & num_configs);
458
if (fbconfig == NULL) {
459
printf("Error: couldn't get an RGB, Double-buffered visual\n");
463
printf("\nThe following fbconfigs meet the requirements. The first one "
464
"will be used.\n\n");
465
for ( i = 0 ; i < num_configs ; i++ ) {
466
PrintFBConfigInfo(dpy, scrnum, fbconfig[i], GL_TRUE);
469
/* window attributes */
470
visinfo = (*get_visual_from_fbconfig)(dpy, fbconfig[0]);
471
assert(visinfo != NULL);
472
attr.background_pixel = 0;
473
attr.border_pixel = 0;
474
attr.colormap = XCreateColormap( dpy, root, visinfo->visual, AllocNone);
475
attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
476
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
478
win = XCreateWindow( dpy, root, 0, 0, width, height,
479
0, visinfo->depth, InputOutput,
480
visinfo->visual, mask, &attr );
482
/* set hints and properties */
484
XSizeHints sizehints;
487
sizehints.width = width;
488
sizehints.height = height;
489
sizehints.flags = USSize | USPosition;
490
XSetNormalHints(dpy, win, &sizehints);
491
XSetStandardProperties(dpy, win, name, name,
492
None, (char **)NULL, 0, &sizehints);
495
glxWin = (*create_window)(dpy, fbconfig[0], win, NULL);
497
ctx = (*create_new_context)(dpy, fbconfig[0], GLX_RGBA_TYPE, NULL, GL_TRUE);
499
printf("Error: glXCreateNewContext failed\n");
512
event_loop(Display *dpy, GLXWindow win)
515
while (XPending(dpy) > 0) {
517
XNextEvent(dpy, &event);
518
switch (event.type) {
520
/* we'll redraw below */
522
case ConfigureNotify:
523
reshape(event.xconfigure.width, event.xconfigure.height);
529
code = XLookupKeysym(&event.xkey, 0);
530
if (code == XK_Left) {
533
else if (code == XK_Right) {
536
else if (code == XK_Up) {
539
else if (code == XK_Down) {
543
r = XLookupString(&event.xkey, buffer, sizeof(buffer),
545
if (buffer[0] == 27) {
558
glXSwapBuffers(dpy, win);
563
static int frames = 0;
564
int t = current_time();
572
GLfloat seconds = t - t0;
573
GLfloat fps = frames / seconds;
574
printf("%d frames in %3.1f seconds = %6.3f FPS\n", frames, seconds,
585
main(int argc, char *argv[])
591
const char *dpyName = NULL;
592
GLboolean printInfo = GL_FALSE;
595
for (i = 1; i < argc; i++) {
596
if (strcmp(argv[i], "-display") == 0) {
600
else if (strcmp(argv[i], "-info") == 0) {
605
dpy = XOpenDisplay(dpyName);
607
printf("Error: couldn't open display %s\n", XDisplayName(dpyName));
611
make_window(dpy, "glxgears", 0, 0, 300, 300, &win, &glxWin, &ctx);
612
XMapWindow(dpy, win);
613
glXMakeCurrent(dpy, glxWin, ctx);
616
printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
617
printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
618
printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
619
printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
624
event_loop(dpy, glxWin);
626
glXDestroyContext(dpy, ctx);
627
destroy_window(dpy, glxWin);
628
XDestroyWindow(dpy, win);
added
removed
src/xdemos/glxgears_fbconfig.c
