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initial check-in
This commit is contained in:
Brian Paul
parent
d27e256f49
commit
0852d0b95e
2 changed files with 575 additions and 0 deletions
286
progs/xdemos/glxheads.c
Normal file
286
progs/xdemos/glxheads.c
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/* $Id: glxheads.c,v 1.1 2000/06/13 19:41:30 brianp Exp $ */
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/*
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* Exercise multiple GLX connections on multiple X displays.
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* Direct GLX contexts are attempted first, then indirect.
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* Each window will display a spinning green triangle.
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*
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* Copyright (C) 2000 Brian Paul All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* 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:
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*
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||||
* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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||||
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <GL/gl.h>
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#include <GL/glx.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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/*
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* Each display/window/context:
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*/
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struct head {
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char DisplayName[1000];
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Display *Dpy;
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Window Win;
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GLXContext Context;
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float Angle;
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char Renderer[1000];
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char Vendor[1000];
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char Version[1000];
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};
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#define MAX_HEADS 20
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static struct head Heads[MAX_HEADS];
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static int NumHeads = 0;
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static void
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Error(const char *display, const char *msg)
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{
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fprintf(stderr, "Error on display %s - %s\n", display, msg);
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exit(1);
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}
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static struct head *
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AddHead(const char *displayName)
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{
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Display *dpy;
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Window win;
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GLXContext ctx;
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int attrib[] = { GLX_RGBA,
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GLX_RED_SIZE, 1,
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GLX_GREEN_SIZE, 1,
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GLX_BLUE_SIZE, 1,
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GLX_DOUBLEBUFFER,
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None };
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int scrnum;
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XSetWindowAttributes attr;
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unsigned long mask;
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Window root;
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XVisualInfo *visinfo;
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int width = 300, height = 300;
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int xpos = 10, ypos = 10;
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if (NumHeads >= MAX_HEADS)
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return NULL;
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dpy = XOpenDisplay(displayName);
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if (!dpy) {
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Error(displayName, "Unable to open display");
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return NULL;
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}
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scrnum = DefaultScreen(dpy);
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root = RootWindow(dpy, scrnum);
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visinfo = glXChooseVisual(dpy, scrnum, attrib);
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if (!visinfo) {
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Error(displayName, "Unable to find RGB, double-buffered visual");
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return NULL;
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}
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/* window attributes */
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attr.background_pixel = 0;
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attr.border_pixel = 0;
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attr.colormap = XCreateColormap(dpy, root, visinfo->visual, AllocNone);
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attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
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mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
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win = XCreateWindow(dpy, root, 0, 0, width, height,
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0, visinfo->depth, InputOutput,
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visinfo->visual, mask, &attr);
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if (!win) {
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Error(displayName, "Couldn't create window");
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return NULL;
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}
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{
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XSizeHints sizehints;
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sizehints.x = xpos;
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sizehints.y = ypos;
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sizehints.width = width;
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sizehints.height = height;
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sizehints.flags = USSize | USPosition;
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XSetNormalHints(dpy, win, &sizehints);
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XSetStandardProperties(dpy, win, displayName, displayName,
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None, (char **)NULL, 0, &sizehints);
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}
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ctx = glXCreateContext(dpy, visinfo, NULL, True);
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if (!ctx) {
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Error(displayName, "Couldn't create GLX context");
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return NULL;
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}
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XMapWindow(dpy, win);
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if (!glXMakeCurrent(dpy, win, ctx)) {
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Error(displayName, "glXMakeCurrent failed");
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printf("glXMakeCurrent failed in Redraw()\n");
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return;
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}
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/* save the info for this head */
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{
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struct head *h = &Heads[NumHeads];
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strcpy(h->DisplayName, displayName);
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h->Dpy = dpy;
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h->Win = win;
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h->Context = ctx;
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h->Angle = 0.0;
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strcpy(h->Version, (char *) glGetString(GL_VERSION));
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strcpy(h->Vendor, (char *) glGetString(GL_VENDOR));
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strcpy(h->Renderer, (char *) glGetString(GL_RENDERER));
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NumHeads++;
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return &Heads[NumHeads-1];
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}
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}
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static void
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Redraw(struct head *h)
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{
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if (!glXMakeCurrent(h->Dpy, h->Win, h->Context)) {
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Error(h->DisplayName, "glXMakeCurrent failed");
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printf("glXMakeCurrent failed in Redraw()\n");
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return;
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}
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h->Angle += 1.0;
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glShadeModel(GL_FLAT);
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glClearColor(0.5, 0.5, 0.5, 1.0);
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glClear(GL_COLOR_BUFFER_BIT);
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/* draw green triangle */
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glColor3f(0.0, 1.0, 0.0);
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glPushMatrix();
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glRotatef(h->Angle, 0, 0, 1);
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glBegin(GL_TRIANGLES);
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glVertex2f(0, 0.8);
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glVertex2f(-0.8, -0.7);
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glVertex2f(0.8, -0.7);
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glEnd();
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glPopMatrix();
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glXSwapBuffers(h->Dpy, h->Win);
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}
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static void
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Resize(const struct head *h, unsigned int width, unsigned int height)
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{
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if (!glXMakeCurrent(h->Dpy, h->Win, h->Context)) {
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Error(h->DisplayName, "glXMakeCurrent failed in Resize()");
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return;
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}
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glFlush();
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glViewport(0, 0, width, height);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glOrtho(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0);
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}
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static void
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EventLoop(void)
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{
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while (1) {
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int i;
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for (i = 0; i < NumHeads; i++) {
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struct head *h = &Heads[i];
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while (XPending(h->Dpy) > 0) {
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XEvent event;
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XNextEvent(h->Dpy, &event);
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if (event.xany.window == h->Win) {
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switch (event.type) {
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case Expose:
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Redraw(h);
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break;
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case ConfigureNotify:
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Resize(h, event.xconfigure.width, event.xconfigure.height);
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break;
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case KeyPress:
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return;
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default:
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/*no-op*/ ;
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}
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}
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else {
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printf("window mismatch\n");
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}
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}
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Redraw(h);
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}
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usleep(1);
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}
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}
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static void
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PrintInfo(const struct head *h)
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{
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printf("Name: %s\n", h->DisplayName);
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printf(" Display: 0x%x\n", h->Dpy);
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printf(" Window: 0x%x\n", h->Win);
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printf(" Context: 0x%x\n", h->Context);
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printf(" GL_VERSION: %s\n", h->Version);
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printf(" GL_VENDOR: %s\n", h->Vendor);
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printf(" GL_RENDERER: %s\n", h->Renderer);
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}
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int
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main(int argc, char *argv[])
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{
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int i;
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if (argc == 1) {
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struct head *h;
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printf("glxheads: exercise multiple GLX connections (any key = exit)\n");
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printf("Usage:\n");
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printf(" glxheads xdisplayname ...\n");
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printf("Example:\n");
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printf(" glxheads :0 mars:0 venus:1\n");
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h = AddHead(":0");
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if (h)
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PrintInfo(h);
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}
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else {
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for (i = 1; i < argc; i++) {
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const char *name = argv[i];
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struct head *h = AddHead(name);
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if (h) {
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PrintInfo(h);
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}
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}
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}
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EventLoop();
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return 0;
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}
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289
progs/xdemos/manywin.c
Normal file
289
progs/xdemos/manywin.c
Normal file
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@ -0,0 +1,289 @@
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/* $Id: manywin.c,v 1.1 2000/06/13 19:41:30 brianp Exp $ */
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/*
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* Create N GLX windows/contexts and render to them in round-robin
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* order.
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*
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* Copyright (C) 2000 Brian Paul All Rights Reserved.
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*
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* 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.
|
||||
*/
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||||
|
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#include <GL/gl.h>
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#include <GL/glx.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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/*
|
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* Each display/window/context:
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*/
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struct head {
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char DisplayName[1000];
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Display *Dpy;
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Window Win;
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GLXContext Context;
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float Angle;
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char Renderer[1000];
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char Vendor[1000];
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char Version[1000];
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};
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#define MAX_HEADS 200
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static struct head Heads[MAX_HEADS];
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static int NumHeads = 0;
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static void
|
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Error(const char *display, const char *msg)
|
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{
|
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fprintf(stderr, "Error on display %s - %s\n", display, msg);
|
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exit(1);
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}
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static struct head *
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AddHead(const char *displayName, const char *name)
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{
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Display *dpy;
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Window win;
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GLXContext ctx;
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int attrib[] = { GLX_RGBA,
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GLX_RED_SIZE, 1,
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GLX_GREEN_SIZE, 1,
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GLX_BLUE_SIZE, 1,
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GLX_DOUBLEBUFFER,
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None };
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int scrnum;
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XSetWindowAttributes attr;
|
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unsigned long mask;
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Window root;
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XVisualInfo *visinfo;
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int width = 90, height = 90;
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int xpos = 0, ypos = 0;
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if (NumHeads >= MAX_HEADS)
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return NULL;
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dpy = XOpenDisplay(displayName);
|
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if (!dpy) {
|
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Error(displayName, "Unable to open display");
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return NULL;
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}
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scrnum = DefaultScreen(dpy);
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root = RootWindow(dpy, scrnum);
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visinfo = glXChooseVisual(dpy, scrnum, attrib);
|
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if (!visinfo) {
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Error(displayName, "Unable to find RGB, double-buffered visual");
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return NULL;
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}
|
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/* window attributes */
|
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xpos = (NumHeads % 10) * 100;
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ypos = (NumHeads / 10) * 100;
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printf("%d, %d\n", xpos, ypos);
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attr.background_pixel = 0;
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attr.border_pixel = 0;
|
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attr.colormap = XCreateColormap(dpy, root, visinfo->visual, AllocNone);
|
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attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
|
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mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
|
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|
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win = XCreateWindow(dpy, root, xpos, ypos, width, height,
|
||||
0, visinfo->depth, InputOutput,
|
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visinfo->visual, mask, &attr);
|
||||
if (!win) {
|
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Error(displayName, "Couldn't create window");
|
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return NULL;
|
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}
|
||||
|
||||
{
|
||||
XSizeHints sizehints;
|
||||
sizehints.x = xpos;
|
||||
sizehints.y = ypos;
|
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sizehints.width = width;
|
||||
sizehints.height = height;
|
||||
sizehints.flags = USSize | USPosition;
|
||||
XSetNormalHints(dpy, win, &sizehints);
|
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XSetStandardProperties(dpy, win, name, name,
|
||||
None, (char **)NULL, 0, &sizehints);
|
||||
}
|
||||
|
||||
|
||||
ctx = glXCreateContext(dpy, visinfo, NULL, True);
|
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if (!ctx) {
|
||||
Error(displayName, "Couldn't create GLX context");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
XMapWindow(dpy, win);
|
||||
|
||||
if (!glXMakeCurrent(dpy, win, ctx)) {
|
||||
Error(displayName, "glXMakeCurrent failed");
|
||||
printf("glXMakeCurrent failed in Redraw()\n");
|
||||
return;
|
||||
}
|
||||
|
||||
/* save the info for this head */
|
||||
{
|
||||
struct head *h = &Heads[NumHeads];
|
||||
strcpy(h->DisplayName, name);
|
||||
h->Dpy = dpy;
|
||||
h->Win = win;
|
||||
h->Context = ctx;
|
||||
h->Angle = 0.0;
|
||||
strcpy(h->Version, (char *) glGetString(GL_VERSION));
|
||||
strcpy(h->Vendor, (char *) glGetString(GL_VENDOR));
|
||||
strcpy(h->Renderer, (char *) glGetString(GL_RENDERER));
|
||||
NumHeads++;
|
||||
return &Heads[NumHeads-1];
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
Redraw(struct head *h)
|
||||
{
|
||||
if (!glXMakeCurrent(h->Dpy, h->Win, h->Context)) {
|
||||
Error(h->DisplayName, "glXMakeCurrent failed");
|
||||
printf("glXMakeCurrent failed in Redraw()\n");
|
||||
return;
|
||||
}
|
||||
|
||||
h->Angle += 1.0;
|
||||
|
||||
glShadeModel(GL_FLAT);
|
||||
glClearColor(0.5, 0.5, 0.5, 1.0);
|
||||
glClear(GL_COLOR_BUFFER_BIT);
|
||||
|
||||
/* draw green triangle */
|
||||
glColor3f(0.0, 1.0, 0.0);
|
||||
glPushMatrix();
|
||||
glRotatef(h->Angle, 0, 0, 1);
|
||||
glBegin(GL_TRIANGLES);
|
||||
glVertex2f(0, 0.8);
|
||||
glVertex2f(-0.8, -0.7);
|
||||
glVertex2f(0.8, -0.7);
|
||||
glEnd();
|
||||
glPopMatrix();
|
||||
|
||||
glXSwapBuffers(h->Dpy, h->Win);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static void
|
||||
Resize(const struct head *h, unsigned int width, unsigned int height)
|
||||
{
|
||||
if (!glXMakeCurrent(h->Dpy, h->Win, h->Context)) {
|
||||
Error(h->DisplayName, "glXMakeCurrent failed in Resize()");
|
||||
return;
|
||||
}
|
||||
glFlush();
|
||||
glViewport(0, 0, width, height);
|
||||
glMatrixMode(GL_PROJECTION);
|
||||
glLoadIdentity();
|
||||
glOrtho(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static void
|
||||
EventLoop(void)
|
||||
{
|
||||
while (1) {
|
||||
int i;
|
||||
for (i = 0; i < NumHeads; i++) {
|
||||
struct head *h = &Heads[i];
|
||||
while (XPending(h->Dpy) > 0) {
|
||||
XEvent event;
|
||||
XNextEvent(h->Dpy, &event);
|
||||
if (event.xany.window == h->Win) {
|
||||
switch (event.type) {
|
||||
case Expose:
|
||||
Redraw(h);
|
||||
break;
|
||||
case ConfigureNotify:
|
||||
Resize(h, event.xconfigure.width, event.xconfigure.height);
|
||||
break;
|
||||
case KeyPress:
|
||||
return;
|
||||
default:
|
||||
/*no-op*/ ;
|
||||
}
|
||||
}
|
||||
else {
|
||||
printf("window mismatch\n");
|
||||
}
|
||||
}
|
||||
Redraw(h);
|
||||
}
|
||||
usleep(1);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
static void
|
||||
PrintInfo(const struct head *h)
|
||||
{
|
||||
printf("Name: %s\n", h->DisplayName);
|
||||
printf(" Display: 0x%x\n", h->Dpy);
|
||||
printf(" Window: 0x%x\n", h->Win);
|
||||
printf(" Context: 0x%x\n", h->Context);
|
||||
printf(" GL_VERSION: %s\n", h->Version);
|
||||
printf(" GL_VENDOR: %s\n", h->Vendor);
|
||||
printf(" GL_RENDERER: %s\n", h->Renderer);
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
main(int argc, char *argv[])
|
||||
{
|
||||
int i;
|
||||
if (argc == 1) {
|
||||
struct head *h;
|
||||
printf("manywin: open N simultaneous glx windows\n");
|
||||
printf("Usage:\n");
|
||||
printf(" manywin numWindows\n");
|
||||
printf("Example:\n");
|
||||
printf(" manywin 10\n");
|
||||
return 0;
|
||||
}
|
||||
else {
|
||||
int n = atoi(argv[1]);
|
||||
printf("%d windows\n", n);
|
||||
for (i = 0; i < n; i++) {
|
||||
char name[100];
|
||||
struct head *h;
|
||||
sprintf(name, "%d", i);
|
||||
h = AddHead(":0", name);
|
||||
if (h) {
|
||||
PrintInfo(h);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
EventLoop();
|
||||
return 0;
|
||||
}
|
||||
Loading…
Add table
Reference in a new issue